DIY - High voltage linear regulator based on the LM317 - Part 2 FesZ Electronics 2024-10-16 | DIY - High voltage linear regulator based on the LM317 - Part 2
Analyzing Guanella Impedance Transformers FesZ Electronics 2024-01-07 | #210 In this video I want to look at the Guanella transformer and some of its proprieties. Although its commonly used as a Balun, it can also be use as general purpose impedance transformer with various types of input and output combinations. Finally I will be trying to build such a structure and testing it out. Balun series:Ep1 - Communication lines and baluns youtu.be/EojKvuc9xckEp2 - Voltage and Current baluns youtu.be/NkxLXQ32GDQEp3 - Energy coupling youtu.be/83QRK1ULmY8Ep4 - Transmission line baluns youtu.be/gS0YBCNYViYEp5 - Transmission line experiments: youtu.be/la1VS7YVE0MEp6 - The Ruthroff Transformer: youtu.be/iVuXRdcmmTQEp7 - The Guanella Transformers: youtu.be/QAYaetJ1dvMFurther reading:k5tra.net/TechFiles/Transformers.pdfhttps://citeseerx.ist.psu.edu/document?repid=rep1&type=pdf&doi=356f753c3c9bbbf15a95754b383e4ee247a825ffresearchgate.net/publication/4061961_The_STLT-an_ultra-wideband_high-ratio_pulse_transformerSpecial Thanks to all my supporters on Patreon!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
The Ruthroff Impedance Transformer FesZ Electronics 2023-11-26 | #209 In this video I look at a Un-un impedance transformer commonly used in various RF circuits. Although it can be built with various impedance ratios and it can work over a wide frequency range, to get the best out of it, it needs to be treated as a transmission line transformers with all of its characteristics. Further reading:highfrequencyelectronics.com/Dec07/HFE1207_GrebennikovPart1.pdfhighfrequencyelectronics.com/Jan08/HFE0108_GrebennikovPart2.pdfhighfrequencyelectronics.com/Feb08/HFE0208_GrebennikovPart3_Rev.pdfmikrocontroller.net/attachment/217383/Trask_TLT_Tutorial.pdfBalun series:Ep1 - Communication lines and baluns youtu.be/EojKvuc9xckEp2 - Voltage and Current baluns youtu.be/NkxLXQ32GDQEp3 - Energy coupling youtu.be/83QRK1ULmY8Ep4 - Transmission line baluns youtu.be/gS0YBCNYViYEp5 - Transmission line experiments: youtu.be/la1VS7YVE0MEp6 - The Ruthroff Transformer: youtu.be/iVuXRdcmmTQSpecial Thanks to all my supporters on Patreon!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
LTspice tutorial - Differential transmission lines FesZ Electronics 2023-11-19 | #208 In this video I look at how a differential line can be modeled using LTspice. In general when modeling differential transmission lines, you don't just model the line to line coupling, but you also need to consider the line to ground coupling as well. Based on the lines exact geometry different couplings will exist, and an accurate model will need to consider this. Further reading:resources.pcb.cadence.com/blog/2019-even-and-odd-mode-impedance-in-transmission-linesresearchgate.net/publication/255648346_Validation_Methods_for_S-parameter_Measurement_Based_Models_of_Differential_Transmission_LinesLTspice Tutorial series:EP1-Getting started: youtu.be/JRcyHuyb1V0EP2-AC simulation and the Baxandall tone control circuit: youtu.be/P_ENvucaZkIEP3-.param and .step directives: youtu.be/ARE5nwiHI0QEP4-How to import libraries and component models: youtu.be/8V5XabccFaEEp5- Stock example simulations to play with: youtu.be/MwfeMjcM4zYEp6- Basics of FFT analysis and .four statment: youtu.be/rVAvW1Jh2AEEP7- Dependent voltage and current sourcesyoutu.be/Jn8mJG3qeooEp8- Turning a datasheet into a component modelyoutu.be/0smuo8bMRn4EP9- Independent voltage and current sourcesyoutu.be/nPZ7vneN3v8Ep10- .wave statement and audio file processingyoutu.be/mdJm-TzrBsAEp11 The effect of temperature on your circuityoutu.be/VzxnNrOMcMoEP12 Modeling a DC brushed motoryoutu.be/Wc4XzTrWSpoEp13- Worst Case, Monte Carlo and Gaussian statistics circuit analysisyoutu.be/NdGqboW2VcYEP14 - Digital circuits and logic gates youtu.be/JttE2NObDPMEP15- SMPS EMI and electrical noise and filtersyoutu.be/QEAzcaiBrpYEP16- Feedback loop simulationyoutu.be/X4yaBwaO1gkEp17 - Verifying Simulation Modelsyoutu.be/DSDiIkKQaAEEp18 - Simulating Capacitorsyoutu.be/QpWPTolhfEoEp 19 - Simulating Inductorsyoutu.be/65fNDRows90EP 20 - Noise simulations youtu.be/Dh5XmFXlljIEp21 - Models and Librariesyoutu.be/GUFMfSlD2AMEp22- Voltage and current limited sourceyoutu.be/DnKnuJd3-ecEp23- Measuring Power Factoryoutu.be/qZXOMPxbqh8Ep24 - Modeling a vacuum tube triodeyoutu.be/7v9dG1uteAQEp25- Using standard symbolsyoutu.be/BFMVujjH0loEp26- Modeling transformersyoutu.be/muUwe8X51oYEp27 - Stepping sets of parametersyoutu.be/1iOzX91LJ8gEP28 - Simulating Quartz crystalsyoutu.be/MWQCZGXpSScEp29 - Simulating gas discharge tubesyoutu.be/W677PWt1CQIEp30 - LT tips and tricksyoutu.be/koeIYCO3ouAEp31 - Modeling switchesyoutu.be/rxmI0pR9wIMEP32 - FREQ functionyoutu.be/Ao16bytrbwcSpecial Thanks to all my supporters on Patreon!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
Experiments with Transmission Line Baluns FesZ Electronics 2023-11-05 | #207 In this video I continue looking at the transmission line baluns we analyzed last time by building and testing them out. Just to keep things simple, and working at low frequency, I build these form meters of cable, but as with any good experiment - not everything goes according to plan...Balun series:Ep1 - Communication lines and baluns youtu.be/EojKvuc9xckEp2 - Voltage and Current baluns youtu.be/NkxLXQ32GDQEp3 - Energy coupling youtu.be/83QRK1ULmY8Ep4 - Transmission line baluns youtu.be/gS0YBCNYViYEp5 - Transmission line experiments: youtu.be/la1VS7YVE0MEp6 - The Ruthroff Transformer: youtu.be/iVuXRdcmmTQFurther reading:https://www.onetransistor.eu/2018/04/transmission-line-baluns-for-vhf-and-uhf.htmlSpecial Thanks to all my supporters on Patreon!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronicsSpecial Thanks to all my supporters on Patreon!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
Transmission-Line Baluns FesZ Electronics 2023-10-29 | #206 This time I continue looking at baluns by analyzing a couple transmission line based structures. Especially when working with high frequencies, transmission line based structures become indispensable, and today I want to look at some of the most common ones. Balun series:Ep1 - Communication lines and baluns youtu.be/EojKvuc9xckEp2 - Voltage and Current baluns youtu.be/NkxLXQ32GDQEp3 - Energy coupling youtu.be/83QRK1ULmY8Ep4 - Transmission line baluns youtu.be/gS0YBCNYViYEp5 - Transmission line experiments: youtu.be/la1VS7YVE0MEp6 - The Ruthroff Transformer: youtu.be/iVuXRdcmmTQRelated videos:Quarter wavelength matching part1: youtu.be/ie0eBuPohHsQuarter wavelength matching part2: youtu.be/KLNK935wglAFurther reading:https://www.onetransistor.eu/2018/04/transmission-line-baluns-for-vhf-and-uhf.htmlSpecial Thanks to all my supporters on Patreon!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
Energy transfer in Baluns FesZ Electronics 2023-10-15 | #205 In this video on the topic of baluns, I look at the 2 main principles on which the energy gets transferred between the windings - on the one hand you have magnetic coupling and on another you have transmission line coupling. Now, other than these 2 separate methods, there is a third intermediate one - both methods at the same time. Balun series:Ep1 - Communication lines and baluns youtu.be/EojKvuc9xckEp2 - Voltage and Current baluns youtu.be/NkxLXQ32GDQEp3 - Energy coupling youtu.be/83QRK1ULmY8Ep4 - Transmission line baluns youtu.be/gS0YBCNYViYEp5 - Transmission line experiments: youtu.be/la1VS7YVE0MEp6 - The Ruthroff Transformer: youtu.be/iVuXRdcmmTQDatasheet:fair-rite.com/52-material-data-sheetFurther reading:eng.libretexts.org/Bookshelves/Electrical_Engineering/Electronics/Microwave_and_RF_Design_III_-_Networks_(Steer)/05%3A_Chapter_5/5.12%3A_Transmission_Line_TransformerTransmission Line Transformers; Jerry Sevick; Noble Publishing 2001Special Thanks to all my supporters on Patreon!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
Voltage and Current Baluns FesZ Electronics 2023-10-08 | #204 In this video I continue looking at baluns by exploring what exactly makes the current balun different from the voltage balun. Both are commonly used, and both have similar end proprieties - they link a balanced signal to an unbalanced one, but what exactly makes them different?Balun series:Ep1 - Communication lines and baluns youtu.be/EojKvuc9xckEp2 - Voltage and Current baluns youtu.be/NkxLXQ32GDQEp3 - Energy coupling youtu.be/83QRK1ULmY8Ep4 - Transmission line baluns youtu.be/gS0YBCNYViYEp5 - Transmission line experiments: youtu.be/la1VS7YVE0MEp6 - The Ruthroff Transformer: youtu.be/iVuXRdcmmTQFurther reading:blog.minicircuits.com/demystifying-transformers-baluns-and-ununsSpecial Thanks to all my supporters on Patreon!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
Communication lines and baluns FesZ Electronics 2023-09-24 | #203 In this video I want to start looking at how data and power can be sent from one point to another. This can be done by differential or single ended or balanced or un-balanced methods... and there are other important factors to consider, so this time I just want to shortly look at the various terms that are associated with transmission interfaces and in future videos start looking at these in more detail. Balun series:Ep1 - Communication lines and baluns youtu.be/EojKvuc9xckEp2 - Voltage and Current baluns youtu.be/NkxLXQ32GDQEp3 - Energy coupling youtu.be/83QRK1ULmY8Ep4 - Transmission line baluns youtu.be/gS0YBCNYViYEp5 - Transmission line experiments: youtu.be/la1VS7YVE0MEp6 - The Ruthroff Transformer: youtu.be/iVuXRdcmmTQFurther reading:en.wikipedia.org/wiki/Single-ended_signalingen.wikipedia.org/wiki/Differential_signallingen.wikipedia.org/wiki/Balanced_circuiten.wikipedia.org/wiki/Maximum_power_transfer_theoremSpecial Thanks to all my supporters on Patreon!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
Quick look at QSPICE FesZ Electronics 2023-09-17 | #202 In this video I take a quick look at one of the newest free circuit simulators out there - Qspice. Its quite an interesting program with multiple features but before moving all your simulations over, it might be worth taking a look at some of its quirks. Qspice download and further information: qorvo.com/design-hub/design-tools/interactive/qspiceSpecial Thanks to all my supporters on Patreon!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
Electronic Switches - SMPS and snubbers (2/2) FesZ Electronics 2023-09-03 | #201 In this video I continue looking at the issues that can appear on the switches in a switching converter but also look at how various countermeasures will influence things. I take a practical board and try our various methods to improve on the overshoot and general noise that the initial circuit produces. Related content:SMPS switches 1/2: youtu.be/BdDtOO2sq5kSMPS switches 2/2: youtu.be/WuULAPcnZjcMechanical switch protections 1/2: youtu.be/qJfw0Myx-OUMechanical switch protections 2/2: youtu.be/IPPqt8NRhrAFurther reading:fscdn.rohm.com/en/products/databook/applinote/discrete/sic/mosfet/sic-mos_snubber_circuit_design_an-e.pdffscdn.rohm.com/en/products/databook/applinote/ic/power/switching_regulator/buck_snubber_app-e.pdfanalog.com/media/en/technical-documentation/application-notes/an139f.pdfSpecial Thanks to all my supporters on Patreon!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
Electronic Switches - SMPS and snubbers (1/2) FesZ Electronics 2023-08-27 | #200 In this video I start looking at the slightly different challenges associated with switches when the electronic type is used. To have a clear use case, I analyze the Buck type SMPS and look at where and why problems occur.Related content:SMPS switches 1/2: youtu.be/BdDtOO2sq5kSMPS switches 2/2: youtu.be/WuULAPcnZjcMechanical switch protections 1/2: youtu.be/qJfw0Myx-OUMechanical switch protections 2/2: youtu.be/IPPqt8NRhrAFurther reading:fscdn.rohm.com/en/products/databook/applinote/discrete/sic/mosfet/sic-mos_snubber_circuit_design_an-e.pdffscdn.rohm.com/en/products/databook/applinote/ic/power/switching_regulator/buck_snubber_app-e.pdfanalog.com/media/en/technical-documentation/application-notes/an139f.pdfSpecial Thanks to all my supporters on Patreon!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
About Resonant Dipoles FesZ Electronics 2023-08-13 | #199 In this video I set out to correct one of my previous mistakes and look at the finer details of dipole antennas and observe when exactly they are resonant. I have a look a some basic simulation results, and then proceed to build some antennas and try to observe what constructive parameters impact their resonance.Related content:Antenna Equivalent Model: youtu.be/RQX3B9jUzWkFurther reading:courses.ansys.com/wp-content/uploads/2022/07/TheHalfWaveDipole-Design.pdfantenna-theory.com/antennas/halfwave.phpAntenna theory and design; Stutzman, Thiele; 1981; Special Thanks to all my supporters on Patreon!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
Switch Contact Protection - Testing it Out (2/2) FesZ Electronics 2023-08-06 | #198 In this video I continue looking at protection methods for mechanical switches, by testing out some of the configurations. In most cases the biggest problem will not be figuring out what component value to use, but rather what component can actually withstand the transient conditions. I shortly look at capacitive loads, before moving onto inductive loads.Related content:Mechanical switch protections 1/2: youtu.be/qJfw0Myx-OUMechanical switch protections 2/2: youtu.be/IPPqt8NRhrADatasheets and useful material:vishay.com/docs/48516/_ms9702509-2003-vishaychecklistpulseload.pdfvishay.com/docs/28810/pulseloadhandling.pdfonsemi.com/download/data-sheet/pdf/1n914-d.pdfvishay.com/docs/88503/1n4001.pdfproduct.tdk.com/system/files/dam/doc/product/protection/voltage/lead-disk-varistor/data_sheet/70/db/var/siov_leaded_standard.pdfSpecial Thanks to all my supporters on Patreon!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
Switch Contact Protection - General Methods (1/2) FesZ Electronics 2023-07-23 | #197 In this video I start looking at ways in which mechanical switches can be broken, and more importantly how to prevent that. The main issue usually involve exposure to over voltage or overcurrent, and there are more or less complicated ways to prevent issues from occurring. Related content:Mechanical switch protections 1/2: youtu.be/qJfw0Myx-OUMechanical switch protections 2/2: youtu.be/IPPqt8NRhrAUsed datasheet: omronfs.omron.com/en_US/ecb/products/pdf/en-ss.pdfSpecial Thanks to all my supporters on Patreon!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
Antenna Equivalent Model FesZ Electronics 2023-07-16 | #196 In this video I look at how an equivalent electrical model can be created for an antenna. I first look at the basic structure of the electrical model and then I look at some ways in which the parameters for that model can be determined. Late edit: as correctly pointed out by a viewer, the ideal halfwave dipole impedance is 73+42.5j and resonance is reached when the antenna is slightly shorter, when the impedance is around 70+0j.MMANA-gal software: http://gal-ana.de/basicmm/en/Related content:LTspice tutorial FREQ Function: youtu.be/Ao16bytrbwcFurther reading:phys.libretexts.org/Bookshelves/Electricity_and_Magnetism/Book%3A_Electromagnetics_II_(Ellingson)/10%3A_Antennas/10.05%3A_Equivalent_Circuit_Model_for_Transmission%3B_Radiation_Efficiencyfars.k6ya.org/docs/Stearns_K6OIK-Universal_Equivalent_Circuits_for_All_Antennas_APS_and_MTTS-19_Jan_2022.pdfSpecial Thanks to all my supporters on Patreon!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
LTspice tutorial - FREQ function FesZ Electronics 2023-07-02 | #195 In this video I look at the FREQ function that can be used in LTspice to insert tables of frequency dependent complex numbers. Its not very well know function, since the help file does not really mention it, but its a very usefull tool in modeling Sparamters or other frequency dependent complex impedances. Further reading:designers-guide.org/forum/Attachments/CreateS-ParameterSUBCKTinPSpice.pdfS1P file of analyzed component:drive.google.com/file/d/1o21-QzxBZjl9U1C-yBsRwmsfBiiJcO36/view?usp=sharingLTspice Tutorial series:EP1-Getting started: youtu.be/JRcyHuyb1V0EP2-AC simulation and the Baxandall tone control circuit: youtu.be/P_ENvucaZkIEP3-.param and .step directives: youtu.be/ARE5nwiHI0QEP4-How to import libraries and component models: youtu.be/8V5XabccFaEEp5- Stock example simulations to play with: youtu.be/MwfeMjcM4zYEp6- Basics of FFT analysis and .four statment: youtu.be/rVAvW1Jh2AEEP7- Dependent voltage and current sourcesyoutu.be/Jn8mJG3qeooEp8- Turning a datasheet into a component modelyoutu.be/0smuo8bMRn4EP9- Independent voltage and current sourcesyoutu.be/nPZ7vneN3v8Ep10- .wave statement and audio file processingyoutu.be/mdJm-TzrBsAEp11 The effect of temperature on your circuityoutu.be/VzxnNrOMcMoEP12 Modeling a DC brushed motoryoutu.be/Wc4XzTrWSpoEp13- Worst Case, Monte Carlo and Gaussian statistics circuit analysisyoutu.be/NdGqboW2VcYEP14 - Digital circuits and logic gates youtu.be/JttE2NObDPMEP15- SMPS EMI and electrical noise and filtersyoutu.be/QEAzcaiBrpYEP16- Feedback loop simulationyoutu.be/X4yaBwaO1gkEp17 - Verifying Simulation Modelsyoutu.be/DSDiIkKQaAEEp18 - Simulating Capacitorsyoutu.be/QpWPTolhfEoEp 19 - Simulating Inductorsyoutu.be/65fNDRows90EP 20 - Noise simulations youtu.be/Dh5XmFXlljIEp21 - Models and Librariesyoutu.be/GUFMfSlD2AMEp22- Voltage and current limited sourceyoutu.be/DnKnuJd3-ecEp23- Measuring Power Factoryoutu.be/qZXOMPxbqh8Ep24 - Modeling a vacuum tube triodeyoutu.be/7v9dG1uteAQEp25- Using standard symbolsyoutu.be/BFMVujjH0loEp26- Modeling transformersyoutu.be/muUwe8X51oYEp27 - Stepping sets of parametersyoutu.be/1iOzX91LJ8gEP28 - Simulating Quartz crystalsyoutu.be/MWQCZGXpSScEp29 - Simulating gas discharge tubesyoutu.be/W677PWt1CQIEp30 - LT tips and tricksyoutu.be/koeIYCO3ouAEp31 - Modeling switchesyoutu.be/rxmI0pR9wIMEP32 - FREQ functionyoutu.be/Ao16bytrbwcSpecial Thanks to all my supporters on Patreon!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
Class E RF amplifier - MORE efficiency (3/3) FesZ Electronics 2023-06-25 | #194 In this video I look at the various small details that need to be taken into account to get the Class E amplifier to actually reach high levels of efficiency. I manly look at the impact of the transistor and gate driver combo as well as analyze the inductor parasitics. Related videos:Class A amplifier part 1 - youtu.be/GtFnkXar5JUClass A amplifier part 2 - youtu.be/wdd18pYyFg0Class B amplifier part 1 - youtu.be/eu54pe0LhpMClass B amplifier part 2a - youtu.be/oTVJM5BZttwClass B amplifier part 2b - youtu.be/qLYQAOWTHREClass C amplifier part 1 - youtu.be/xPTJmFtaGNcClass C amplifier part 2 - youtu.be/gYbMpu4NoZoClass D audio amplifier part 1 - youtu.be/w1Rq1cxfNEkClass D audio amplifier part 2 - youtu.be/pLXautZaH8cClass D audio amplifier part 3 - youtu.be/zhpOU6eb2gsClass D RF amplifier part 1 - youtu.be/idisyToMZ58Class D RF amplifier part 2 - youtu.be/wSFtRKrJ84MClass E amplifier part 1 - youtu.be/Tgrakttus3cClass E amplifier part 2 - youtu.be/qN18wjy5XwcClass E amplifier part 3 - youtu.be/_MMJLsclTnARelevant links:assets.nexperia.com/documents/data-sheet/74LVC1G17.pdfassets.nexperia.com/documents/data-sheet/SI2304DS.pdfinfineon.com/dgdl/Infineon-BSS316N-DS-v02_03-EN.pdf?fileId=db3a304330f686060130ff7ee4b07f16fair-rite.com/61-material-data-sheetSpecial Thanks to all my supporters on Patreon!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
Class E RF amplifier - Build (2/3) FesZ Electronics 2023-06-11 | #193 In this video I continue talking about the Class E amplifier by building and testing out the circuit that was simulated in Part 1. I go trough the various tests intended to verify the circuits operation and try to figure out what are the various limitation of the thing I built. Related videos:Class A amplifier part 1 - youtu.be/GtFnkXar5JUClass A amplifier part 2 - youtu.be/wdd18pYyFg0Class B amplifier part 1 - youtu.be/eu54pe0LhpMClass B amplifier part 2a - youtu.be/oTVJM5BZttwClass B amplifier part 2b - youtu.be/qLYQAOWTHREClass C amplifier part 1 - youtu.be/xPTJmFtaGNcClass C amplifier part 2 - youtu.be/gYbMpu4NoZoClass D audio amplifier part 1 - youtu.be/w1Rq1cxfNEkClass D audio amplifier part 2 - youtu.be/pLXautZaH8cClass D audio amplifier part 3 - youtu.be/zhpOU6eb2gsClass D RF amplifier part 1 - youtu.be/idisyToMZ58Class D RF amplifier part 2 - youtu.be/wSFtRKrJ84MClass E amplifier part 1 - youtu.be/Tgrakttus3cClass E amplifier part 2 - youtu.be/qN18wjy5XwcClass E amplifier part 3 - TBDRelevant links:assets.nexperia.com/documents/data-sheet/74LVC1G17.pdfSpecial Thanks to all my supporters on Patreon!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
Class E RF amplifier - Basics (1/3) FesZ Electronics 2023-06-04 | #192 In this video I start looking at the Class E type of RF power amplifier. Its a switching amplifier that presents very high efficiency and it comes with the added bonus of being buildable with a single switching element. So what's the catch? Related videos:Class A amplifier part 1 - youtu.be/GtFnkXar5JUClass A amplifier part 2 - youtu.be/wdd18pYyFg0Class B amplifier part 1 - youtu.be/eu54pe0LhpMClass B amplifier part 2a - youtu.be/oTVJM5BZttwClass B amplifier part 2b - youtu.be/qLYQAOWTHREClass C amplifier part 1 - youtu.be/xPTJmFtaGNcClass C amplifier part 2 - youtu.be/gYbMpu4NoZoClass D audio amplifier part 1 - youtu.be/w1Rq1cxfNEkClass D audio amplifier part 2 - youtu.be/pLXautZaH8cClass D audio amplifier part 3 - youtu.be/zhpOU6eb2gsClass D RF amplifier part 1 - youtu.be/idisyToMZ58Class D RF amplifier part 2 - youtu.be/wSFtRKrJ84MClass E amplifier part 1 - youtu.be/Tgrakttus3cClass E amplifier part 2 - youtu.be/qN18wjy5XwcClass E amplifier part 3 - TBDRelevant documentation and links:https://people.physics.anu.edu.au/~dxt103/160m/class_E_amplifier_design.pdfinfineon.com/dgdl/Infineon-Wireless_power_transfer_class_E_power_amp-AN-v01_02-EN.pdf?fileId=5546d46262b31d2e016351b8108a1c15RF Power Amplifiers, Mihai Albulet, Noble,2001Radio-Frequency Electronics Circuits and Applications, Jon B. Hagen, Cambridge, 2009https://home.sandiego.edu/~ekim/e194rfs01/jwmatcher/matcher2.htmlnexperia.com/products/mosfets/small-signal-mosfets/SI2304DS.htmlSpecial Thanks to all my supporters on Patreon!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
Common Emitter Amplifier - Practical Build (2/2) FesZ Electronics 2023-05-21 | #191 In this video I continue looking at the common emitter amplifier, by building and testing out the circuit that was simulated in part 1. I look at the main behaviors of the circuit - verify the DC operating point and then the way in which signals are amplified; and finally analyze the input impedance variation.Related content:Common Base Amplifier (1/2): youtu.be/DJw3jI5dLrQCommon Base Amplifier (2/2): youtu.be/Q_r2UyYu-r0Common Collector amplifier (1/2): youtu.be/YsmOYaqFkucCommon Collector amplifier (2/2): youtu.be/EO3NavaTmXECommon Emitter amplifier (1/2): youtu.be/D-76AL5fijECommon Emitter amplifier (2/2): youtu.be/3FioyZGrwCYFurther reading:eng.libretexts.org/Bookshelves/Electrical_Engineering/Electronics/Book%3A_Semiconductor_Devices_-_Theory_and_Application_(Fiore)/07%3A_BJT_Small_Signal_Amplifiers/7.3%3A_Common_Emitter_AmplifierSpecial Thanks to all my supporters on Patreon!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
Common Emitter Amplifier - Theory and Basics (1/2) FesZ Electronics 2023-05-14 | #190 In this video I start looking at the basics behind the final configuration possible for single bipolar transistor amplifiers - the common emitter connection. I look at the various proprieties of this amplifier as well as its limitation, but this time just in the simulator. Related content:Common Base Amplifier (1/2): youtu.be/DJw3jI5dLrQCommon Base Amplifier (2/2): youtu.be/Q_r2UyYu-r0Common Collector amplifier (1/2): youtu.be/YsmOYaqFkucCommon Collector amplifier (2/2): youtu.be/EO3NavaTmXECommon Emitter amplifier (1/2): youtu.be/D-76AL5fijECommon Emitter amplifier (2/2): youtu.be/3FioyZGrwCYFurther reading:eng.libretexts.org/Bookshelves/Electrical_Engineering/Electronics/Book%3A_Semiconductor_Devices_-_Theory_and_Application_(Fiore)/07%3A_BJT_Small_Signal_Amplifiers/7.3%3A_Common_Emitter_AmplifierSpecial Thanks to all my supporters on Patreon!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
DIY BenchSupply [2/2] FesZ Electronics 2023-04-30 | #189 In this video I continue working on my power supply by building and making the first tests; as with any design, nothing is perfect to begin with, some tweaks are necessary here and there, but at least it works.Part 1: youtu.be/ZZFIRvxPbyQPart 2: youtu.be/8E8V7Uw-3egCircuit schematic: drive.google.com/file/d/1ppQ4tmok88HB3VgDQlwIkxYh08zqiysi/view?usp=sharingRelevant links and datasheets:ti.com/lit/ds/symlink/lm723.pdfanalog.com/media/en/technical-documentation/data-sheets/3080fc.pdfSpecial Thanks to all my supporters on Patreon!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
DIY BenchSupply [1/2] FesZ Electronics 2023-04-23 | #188 In this video I try something a bit more different than normal. Rather than talk about a specific technical subject, I want to take you trough my quest of building a power supply for home use. Its nothing particularly special, but it does not have to be, it just needs to work and be reliable. Part 1: youtu.be/ZZFIRvxPbyQPart 2: youtu.be/8E8V7Uw-3egRelevant links and datasheets:ti.com/lit/ds/symlink/lm723.pdfanalog.com/media/en/technical-documentation/data-sheets/3080fc.pdfSpecial Thanks to all my supporters on Patreon!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
Power Supply parameters - Loop Response FesZ Electronics 2023-04-09 | #187 In this video I look at a more complex power supply related measurement that is supposed to tell you how stable the supply is and how fast it can react, among other things. The test in question refers to characterizing the feedback loop - how will the power supply react based on the frequency of the perturbation applied?PSU Series videosPSU Static Output: youtu.be/ESz64YnDEIgPSU Dynamic Output: youtu.be/l0bELIic8PEPSU Output Noise: youtu.be/vzhEt3t5VXwPSU Loop response: youtu.be/clUtlYPEwfcFurther reading:ti.com/seclit/ml/slup386/slup386.pdfti.com/lit/an/snva364a/snva364a.pdfomicron-lab.com/fileadmin/assets/Bode_100/ApplicationNotes/DC_DC_Stability/App_Note_DC_DC_Stability_V3_3.pdfSpecial Thanks to all my supporters on Patreon!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
Power Supply parameters - Output Noise FesZ Electronics 2023-04-02 | #186 In this video I look at the noise that is present on the output of a power supply and the various reasons for it being there. The noise level is of course dependent on power supply type - switching converters are usually more noisy than linear regulators, but you also need to factor in the noise already present on the input side, and finally the exact way in which the circuit is built will have an impact on the output.PSU Series videosPSU Static Output: youtu.be/ESz64YnDEIgPSU Dynamic Output: youtu.be/l0bELIic8PEPSU Output Noise: youtu.be/vzhEt3t5VXwRelated videos:LNA Ep1: youtu.be/Xn9LNgVKdqILNA Ep2: youtu.be/Car8hk_ubJsLNA Ep3: youtu.be/2mGKvGYwWrkFurther reading:ti.com/lit/an/slaa414a/slaa414a.pdfti.com/lit/ds/symlink/lm323-n.pdfSpecial Thanks to all my supporters on Patreon!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
Common Base Amplifier - Practical Build (2/2) FesZ Electronics 2023-03-19 | #185 In this video I proceed to build and then test the common base amplifier that was designed in episode 1. I go trough the various steps that where treated in the simulator, but also end up being somewhat limited by the real requirements that measuring such a circuit require - mainly the very small input signals. More on Impedance matching by W2AEW:youtube.com/watch?v=ieAhBejHe2M&t=3syoutube.com/watch?v=7TtKE39TWpIRelated content:Common Base Amplifier (1/2): youtu.be/DJw3jI5dLrQCommon Base Amplifier (2/2): youtu.be/Q_r2UyYu-r0Common Collector amplifier (1/2): youtu.be/YsmOYaqFkucCommon Collector amplifier (2/2): youtu.be/EO3NavaTmXESpecial Thanks to all my supporters on Patreon!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
Common Base Amplifier - Theory and Basics (1/2) FesZ Electronics 2023-03-12 | #184 In this video I continue looking at the basic connection methods for the bipolar transistor by analyzing the common base amplifier. I will be looking at its various proprieties and analyze them using a circuit simulator - as always LTspice. Related content:Common Base Amplifier (1/2): youtu.be/DJw3jI5dLrQCommon Base Amplifier (2/2): youtu.be/Q_r2UyYu-r0Common Collector amplifier (1/2): youtu.be/YsmOYaqFkucCommon Collector amplifier (2/2): youtu.be/EO3NavaTmXECommon Emitter amplifier (1/2): youtu.be/D-76AL5fijECommon Emitter amplifier (2/2): youtu.be/3FioyZGrwCYFurther Reading:eng.libretexts.org/Bookshelves/Electrical_Engineering/Electronics/Book%3A_Semiconductor_Devices_-_Theory_and_Application_(Fiore)/07%3A_BJT_Small_Signal_Amplifiers/7.5%3A_Common_Base_Amplifieren.wikipedia.org/wiki/Common_basesparkfun.com/datasheets/Components/BC546.pdfSpecial Thanks to all my supporters on Patreon!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
Power Supply parameters - Dynamic Accuracy FesZ Electronics 2023-02-26 | #183 In this video I look at the dynamic factors that affect the output voltage of a power supply. On the one hand the variation of the input voltage and on the other the variation of the output voltage. Both of these situations can occur in the normal use of a power supply so its important to verify how the output responds to them. PSU Series videosPSU Static Output: youtu.be/ESz64YnDEIgPSU Dynamic Output: youtu.be/l0bELIic8PEPSU Output Noise: youtu.be/vzhEt3t5VXwRelated content:Static Active load: youtu.be/5xhLJlqCREADIY Current Probe: youtu.be/P6bUv8LehhkDatasheets and further reading:techweb.rohm.com/knowledge/dcdc/dcdc_sr/dcdc_sr01/1632ti.com/lit/an/snoa507/snoa507.pdfanalog.com/media/en/technical-documentation/application-notes/an104f.pdfti.com/lit/ds/symlink/lm323-n.pdfSpecial Thanks to all my supporters on Patreon!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
Power supply parameters - Static Accuracy FesZ Electronics 2023-02-19 | #182 In this video I start looking at power supplies and the various parameters that characterize them. Starting off with the most basic - the exact output voltage - or the static accuracy. What are the factors that influence this and how can it be improved?PSU Series videosPSU Static Output: youtu.be/ESz64YnDEIgPSU Dynamic Output: youtu.be/l0bELIic8PEPSU Output Noise: youtu.be/vzhEt3t5VXwFurther reading:ti.com/lit/an/slyt467/slyt467.pdfanalog.com/en/analog-dialogue/raqs/raq-issue-159.htmlti.com/lit/an/slva079/slva079.pdfDatasheets:ti.com/lit/ds/symlink/lm340.pdfSpecial Thanks to all my supporters on Patreon!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
Common Collector Amplifier - Practical Build (2/2) FesZ Electronics 2023-02-05 | #181 In this video I keep looking at the common collector amplifier by building and testing the circuit that was simulated in part 1. I go trough the various behaviors and parameters that where observed in the simulator to see how well they are matched by the real circuit.Related content:Common Base Amplifier (1/2): youtu.be/DJw3jI5dLrQCommon Base Amplifier (2/2): youtu.be/Q_r2UyYu-r0Common Collector amplifier (1/2): youtu.be/YsmOYaqFkucCommon Collector amplifier (2/2): youtu.be/EO3NavaTmXEFurther reading:eng.libretexts.org/Bookshelves/Electrical_Engineering/Electronics/Book%3A_Semiconductor_Devices_-_Theory_and_Application_(Fiore)/07%3A_BJT_Small_Signal_Amplifiers/7.4%3A_Common_Collector_Amplifierelectronics-tutorials.ws/amplifier/common-collector-amplifier.htmlSpecial Thanks to all my supporters on Patreon!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
Common Collector Amplifier - Theory and Basics (1/2) FesZ Electronics 2023-01-29 | #180 In this video I start looking at the basic connections in which the bipolar transistor can be used in. First one on the list is the common collector connection. With this method, the collector is kept at a fixed supply point and the signal is passed trough the transistor using the other 2 pins. Each connection method has its own special proprieties, with this one its mainly unity voltage gain and high input impedance and low output impedance.Related content:Common Base Amplifier (1/2): youtu.be/DJw3jI5dLrQCommon Base Amplifier (2/2): youtu.be/Q_r2UyYu-r0Common Collector amplifier (1/2): youtu.be/YsmOYaqFkucCommon Collector amplifier (2/2): youtu.be/EO3NavaTmXEFurther reading:eng.libretexts.org/Bookshelves/Electrical_Engineering/Electronics/Book%3A_Semiconductor_Devices_-_Theory_and_Application_(Fiore)/07%3A_BJT_Small_Signal_Amplifiers/7.4%3A_Common_Collector_Amplifierelectronics-tutorials.ws/amplifier/common-collector-amplifier.htmlSpecial Thanks to all my supporters on Patreon!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
Switching Transistor Losses (2/2) FesZ Electronics 2023-01-15 | #179 In this video I continue looking at the topic of switching losses by analyzing a practical converter to observe how 2 different transistor impact the overall efficiency. I have 2 different transistors to test, one that should have low conduction loss and one that should have low switching loss. Related content:Ep1: youtu.be/MN2R08_-_9YEp2: youtu.be/uZksoMq1EzwFurther reading and datasheets:ti.com/lit/ds/symlink/lm25085.pdfvishay.com/docs/72250/sud50p06.pdfinfineon.com/dgdl/Infineon-SPD09P06PL-DS-v02_06-en.pdffscdn.rohm.com/en/products/databook/applinote/ic/power/switching_regulator/buck_converter_efficiency_app-e.pdfSpecial Thanks to all my supporters on Patreon!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
Switching Transistor Losses (1/2) FesZ Electronics 2023-01-08 | #178 In this video I start looking at the various types of losses that occur on a transistor used in switching applications. Some of these losses will always be there but others are application dependent. Regardless, when trying to improve the efficiency of a switching circuit, either a power supply or an amplifier, its important to first understand where the various losses are coming from.Related content:Ep1: youtu.be/MN2R08_-_9YEp2: youtu.be/uZksoMq1EzwFurther reading:toshiba.semicon-storage.com/ap-en/semiconductor/knowledge/faq/mosfet/electrical-characteristics-of-mosfetsdynamic-characteristics-cis.htmlfscdn.rohm.com/en/products/databook/applinote/ic/power/switching_regulator/buck_converter_efficiency_app-e.pdfvishay.com/docs/73217/an608a.pdfUsed datasheet:infineon.com/dgdl/Infineon-SPD09P06PL-DS-v02_06-en.pdf?fileId=db3a30431ed1d7b2011f40486c6a4ed4Special Thanks to all my supporters on Patreon!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
Quarter wavelength impedance matching (2/2) FesZ Electronics 2022-11-27 | #177 In this video I continue looking at the quarter wavelength transformer, by performing some experiments. First I look at the link between the physical dimension of the transmission line in relation to the frequency for which it is a quarter wavelength, and then I preform various impedance transformations to see how well the theory matches practice. Related topics:Resistive matching: youtu.be/raw_LAJGvAELossless matching part 1: youtu.be/-_T587mucaILossless matching part 2: youtu.be/cXPJgnmpCrwTransformer matching part1: youtu.be/cW1Qn0DQwJMTransformer matching part2: youtu.be/-cG8Q1MgrtcTransformer matching part3: youtu.be/-7tXl7y7YdoQuarter wavelength matching part1: youtu.be/ie0eBuPohHsQuarter wavelength matching part2: youtu.be/KLNK935wglAFurther reading and used datasheet:zuken.com/en/blog/how-to-calculate-trace-length-from-time-delay-value-for-high-speed-signalshttps://www.tme.eu/Document/151b7fc68e82e16d70ee1f3bf3c18100/M_004-005-006-007_RG-coaxial_cables.pdfhttps://www.tme.eu/Document/268c33349b77c19407dbb928ba18de85/RG6-CCS-TRISHIELDEN.pdfSpecial Thanks to all my supporters on Patreon! Especially Ralf B., Paul Pr. Richard, Jonathan Alvarado and Tosta!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
Quarter wavelength impedance matching (1/2) FesZ Electronics 2022-11-20 | #176 In this video I continue looking at impedance matching techniques by analyzing a narrowband lossless method that is implemented without using discrete components but rather pieces of transmission line. Now, not just any piece of line will do, but rather a specific length of line is needed - a quarter wavelength of the used frequency. Related topics:Resistive matching: youtu.be/raw_LAJGvAELossless matching part 1: youtu.be/-_T587mucaILossless matching part 2: youtu.be/cXPJgnmpCrwTransformer matching part1: youtu.be/cW1Qn0DQwJMTransformer matching part2: youtu.be/-cG8Q1MgrtcTransformer matching part3: youtu.be/-7tXl7y7YdoQuarter wavelength matching part1: youtu.be/ie0eBuPohHsQuarter wavelength matching part2: youtu.be/KLNK935wglASpecial Thanks to all my supporters on Patreon! Especially Ralf B., Paul Pr. Richard, Jonathan Alvarado and Tosta!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
The Class D RF amplifier - Testing, testing testing... (3/3) FesZ Electronics 2022-11-06 | #175 In this video I conclude the discussion about the RF class D amplifier by looking at the practical implementation of the circuit I designed last time. I shortly look at the schematic and PCB design and then focus on the various tests that need to be performed just to check how well the circuit is working. Related videos:Class A amplifier part 1 - youtu.be/GtFnkXar5JUClass A amplifier part 2 - youtu.be/wdd18pYyFg0Class B amplifier part 1 - youtu.be/eu54pe0LhpMClass B amplifier part 2a - youtu.be/oTVJM5BZttwClass B amplifier part 2b - youtu.be/qLYQAOWTHREClass C amplifier part 1 - youtu.be/xPTJmFtaGNcClass C amplifier part 2 - youtu.be/gYbMpu4NoZoClass D audio amplifier part 1 - youtu.be/w1Rq1cxfNEkClass D audio amplifier part 2 - youtu.be/pLXautZaH8cClass D audio amplifier part 3 - youtu.be/zhpOU6eb2gsClass D RF amplifier part 1 - youtu.be/idisyToMZ58Class D RF amplifier part 2 - youtu.be/wSFtRKrJ84MClass D RF amplifier part 3 - youtu.be/zQk5WjiCSeEUsed datasheets and app note:onsemi.com/pdf/datasheet/74ac14-d.pdfanalog.com/media/en/technical-documentation/application-notes/an45f.pdfSpecial Thanks to all my supporters on Patreon! Especially Ralf B., Paul Pr. Richard, Jonathan Alvarado and Tosta!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
The Class D RF amplifier - Design and calculations (2/3) FesZ Electronics 2022-10-30 | #174 In this video I continue the series on the Class D amplifier by designing such a circuit. I go for the most basic voltage switching amplifier, but as always I still need some sort of output matching since that is the only way to get the desired output power. In the end I simulate the circuit and hopefully the real thing will behave in a similar fashion.Related videos:Class A amplifier part 1 - youtu.be/GtFnkXar5JUClass A amplifier part 2 - youtu.be/wdd18pYyFg0Class B amplifier part 1 - youtu.be/eu54pe0LhpMClass B amplifier part 2a - youtu.be/oTVJM5BZttwClass B amplifier part 2b - youtu.be/qLYQAOWTHREClass C amplifier part 1 - youtu.be/xPTJmFtaGNcClass C amplifier part 2 - youtu.be/gYbMpu4NoZoClass D audio amplifier part 1 - youtu.be/w1Rq1cxfNEkClass D audio amplifier part 2 - youtu.be/pLXautZaH8cClass D audio amplifier part 3 - youtu.be/zhpOU6eb2gsClass D RF amplifier part 1 - youtu.be/idisyToMZ58Class D RF amplifier part 2 - youtu.be/wSFtRKrJ84MUsed datasheets:onsemi.com/pdf/datasheet/74ac14-d.pdfti.com/lit/an/scaa035b/scaa035b.pdfFurther reading and matching calculator:http://rfic.eecs.berkeley.edu/ee242/pdf/Module_6_2_PA_Classes.pdfhttps://home.sandiego.edu/~ekim/e194rfs01/jwmatcher/matcher2.htmlSpecial Thanks to all my supporters on Patreon! Especially Ralf B., Paul Pr. Richard, Jonathan Alvarado and Tosta!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
The Class D RF amplifier - Basics (1/3) FesZ Electronics 2022-10-16 | #173 In this video I start looking at the RF version of the Class D amplifier. First up, how can it be built and how does it work? unlike most of the previous version, the class D RF has multiple implementations- based on the exact design needs, one or another might be more usefull. Related videos:Class A amplifier part 1 - youtu.be/GtFnkXar5JUClass A amplifier part 2 - youtu.be/wdd18pYyFg0Class B amplifier part 1 - youtu.be/eu54pe0LhpMClass B amplifier part 2a - youtu.be/oTVJM5BZttwClass B amplifier part 2b - youtu.be/qLYQAOWTHREClass C amplifier part 1 - youtu.be/xPTJmFtaGNcClass C amplifier part 2 - youtu.be/gYbMpu4NoZoClass D audio amplifier part 1 - youtu.be/w1Rq1cxfNEkClass D audio amplifier part 2 - youtu.be/pLXautZaH8cClass D audio amplifier part 3 - youtu.be/zhpOU6eb2gsClass D RF amplifier part 1 - youtu.be/idisyToMZ58Class D RF amplifier part 2 - youtu.be/wSFtRKrJ84MFurther reading:http://rfic.eecs.berkeley.edu/ee242/pdf/Module_6_2_PA_Classes.pdfOnline matching network calculator:https://home.sandiego.edu/~ekim/e194rfs01/jwmatcher/matcher2.htmlSpecial Thanks to all my supporters on Patreon! Especially Ralf B., Paul Pr. Richard, Jonathan Alvarado and Tosta!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
LTspice tutorial - Modeling Switches FesZ Electronics 2022-10-09 | #172 In this video I look at how switches can be modeled using LTspice. Now "switch" is a very generic term - it can refer to a mechanical switch, a relay or some sort of electronic component or circuit. Based on the exact propriety that needs to be modeled there is more simple or more complex method, and I try to look at some of these.Further reading: https://www.ieee.li/pdf/viewgraphs/ltspice_voltage_and_current_controlled_switches.pdf LTspice Tutorial series:EP1-Getting started: youtu.be/JRcyHuyb1V0EP2-AC simulation and the Baxandall tone control circuit: youtu.be/P_ENvucaZkIEP3-.param and .step directives: youtu.be/ARE5nwiHI0QEP4-How to import libraries and component models: youtu.be/8V5XabccFaEEp5- Stock example simulations to play with: youtu.be/MwfeMjcM4zYEp6- Basics of FFT analysis and .four statment: youtu.be/rVAvW1Jh2AEEP7- Dependent voltage and current sourcesyoutu.be/Jn8mJG3qeooEp8- Turning a datasheet into a component modelyoutu.be/0smuo8bMRn4EP9- Independent voltage and current sourcesyoutu.be/nPZ7vneN3v8Ep10- .wave statement and audio file processingyoutu.be/mdJm-TzrBsAEp11 The effect of temperature on your circuityoutu.be/VzxnNrOMcMoEP12 Modeling a DC brushed motoryoutu.be/Wc4XzTrWSpoEp13- Worst Case, Monte Carlo and Gaussian statistics circuit analysisyoutu.be/NdGqboW2VcYEP14 - Digital circuits and logic gates youtu.be/JttE2NObDPMEP15- SMPS EMI and electrical noise and filtersyoutu.be/QEAzcaiBrpYEP16- Feedback loop simulationyoutu.be/X4yaBwaO1gkEp17 - Verifying Simulation Modelsyoutu.be/DSDiIkKQaAEEp18 - Simulating Capacitorsyoutu.be/QpWPTolhfEoEp 19 - Simulating Inductorsyoutu.be/65fNDRows90EP 20 - Noise simulations youtu.be/Dh5XmFXlljIEp21 - Models and Librariesyoutu.be/GUFMfSlD2AMEp22- Voltage and current limited sourceyoutu.be/DnKnuJd3-ecEp23- Measuring Power Factoryoutu.be/qZXOMPxbqh8Ep24 - Modeling a vacuum tube triodeyoutu.be/7v9dG1uteAQEp25- Using standard symbolsyoutu.be/BFMVujjH0loEp26- Modeling transformersyoutu.be/muUwe8X51oYEp27 - Stepping sets of parametersyoutu.be/1iOzX91LJ8gEP28 - Simulating Quartz crystalsyoutu.be/MWQCZGXpSScEp29 - Simulating gas discharge tubesyoutu.be/W677PWt1CQIEp30 - LT tips and tricksyoutu.be/koeIYCO3ouAEp31 - Modeling switchesyoutu.be/rxmI0pR9wIMSpecial Thanks to all my supporters on Patreon! Especially Ralf B., Paul Pr. Richard, Jonathan Alvarado and Tosta!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
LTspice tutorial - Network parameters and the .net statement (part 2/2) FesZ Electronics 2022-09-25 | #171 In this video I continue looking at methods of measuring impedance in the circuit simulator by focusing on 2 port devices. I explore the use of LTspice's dedicated function - the .net statement, by looking at how this can be implemented and the various results it provides. This will not just tell you the basic impedance, but also the various network parameters for 2 port circuits like H, S, Z and Y parameters. LTspice impedance part1 - youtu.be/l0f6c3AkTvALTspice impedance part2 - youtu.be/SJyVnGnwDXQSpecial Thanks to all my supporters on Patreon! Especially Ralf B., Paul Pr. Richard, Jonathan Alvarado and Tosta!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
LTspice tutorial - Measuring Impedance (part 1/2) FesZ Electronics 2022-09-18 | #170 In this video I look at various ways in which impedance can be measured in the circuit simulator, and how based on this measurement, an equivalent circuit can be determined. This time I mainly look at some basic RLC circuits - 1 port devices - just to be able to observe the clear correspondence between measurement and test circuit.Correction: at 14:14 the theta angle is equal to the arctan of X/RLTspice impedance part1 - youtu.be/l0f6c3AkTvALTspice impedance part2 - youtu.be/SJyVnGnwDXQSpecial Thanks to all my supporters on Patreon! Especially Ralf B., Paul Pr. Richard, Jonathan Alvarado and Tosta!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
Setting the operating point using Active methods FesZ Electronics 2022-09-04 | #169 In this video I continue to look at methods to stabilize the bias point of a transistor amplifier, this time by using active methods. I first look at what can be done on the design and component selection part and then look at some active electronic compensation methods. Miniseries with related content: BJT DC operating point: youtu.be/B3Oi2XIIRMEFET DC operating point: youtu.be/Dv2Vd2z6mjwActive DC operating point: youtu.be/MS5o0nVm1QgFurther reading and datasheets:assets.nexperia.com/documents/data-sheet/BC817_SER.pdfok2kkw.com/atf54143.pdfqsl.net/va3iul/Bias/Bias_Circuits_for_RF_Devices.pdfSpecial Thanks to all my supporters on Patreon! Especially Ralf B., Paul Pr. Richard, Jonathan Alvarado and Tosta!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
Setting the operating point in a FET amplifier FesZ Electronics 2022-08-28 | #168 In this video I continue looking at how the operating point can be set in simple single transistor amplifier. Today I will be focusing on the FET type transistors. Since this category contains a very wide range and diversity of components, I will be looking at 2 specific types - depletion mode and enhancement mode. Miniseries with related content: BJT DC operating point: youtu.be/B3Oi2XIIRMEFET DC operating point: youtu.be/Dv2Vd2z6mjwActive DC operating point: youtu.be/MS5o0nVm1QgUsed datasheets and further reading:onsemi.com/pdf/datasheet/nds7002a-d.pdfvishay.com/docs/70595/70595.pdfSpecial Thanks to all my supporters on Patreon! Especially Ralf B., Paul Pr. Richard, Jonathan Alvarado and Tosta!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
Setting the operating point in a BJT amplifier FesZ Electronics 2022-08-14 | #167 In this video I start looking at how the operating point can be set in simple single transistor amplifier blocks. There are multiple types of transistors each with their own special behaviors and characteristics - today I will focus on the BJT.Miniseries with related content: BJT DC operating point: youtu.be/B3Oi2XIIRMEFET DC operating point: youtu.be/Dv2Vd2z6mjwActive DC operating point: youtu.be/MS5o0nVm1QgLinks and further reading:onsemi.com/pdf/datasheet/bc846-d.pdfqsl.net/va3iul/Bias/Bias_Circuits_for_RF_Devices.pdfSpecial Thanks to all my supporters on Patreon! Especially Ralf B., Paul Pr. Richard, Jonathan Alvarado and Tosta!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
The Class D audio amplifier - More filters (3/3) FesZ Electronics 2022-08-07 | #166 In this video I continue to work on the Class D audio amplifier by looking at some techniques that can be used to measure the output filter. I look at the response of both the single ended filer as well as the differential one, and finally I test the differential filer on the noise of an actual amplifier.Related videos:Class A amplifier part 1 - youtu.be/GtFnkXar5JUClass A amplifier part 2 - youtu.be/wdd18pYyFg0Class B amplifier part 1 - youtu.be/eu54pe0LhpMClass B amplifier part 2a - youtu.be/oTVJM5BZttwClass B amplifier part 2b - youtu.be/qLYQAOWTHREClass C amplifier part 1 - youtu.be/xPTJmFtaGNcClass C amplifier part 2 - youtu.be/gYbMpu4NoZoClass D audio amplifier part 1 - youtu.be/w1Rq1cxfNEkClass D audio amplifier part 2 - youtu.be/pLXautZaH8cClass D audio amplifier part 3 - youtu.be/zhpOU6eb2gsClass D RF amplifier part 1 - youtu.be/idisyToMZ58Class D RF amplifier part 2 - youtu.be/wSFtRKrJ84MSpecial Thanks to all my supporters on Patreon! Especially Ralf B., Paul Pr. Richard, Jonathan Alvarado and Tosta!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
The Class D audio amplifier - Filters (2/3) FesZ Electronics 2022-07-24 | #165 In this video I continue looking at the class D audio amplifier, by focusing on the output filter. I look at the basic principles behind the single ended filter and then look in a bit more detail into the more complex BTL output filter. Related videos:Class A amplifier part 1 - youtu.be/GtFnkXar5JUClass A amplifier part 2 - youtu.be/wdd18pYyFg0Class B amplifier part 1 - youtu.be/eu54pe0LhpMClass B amplifier part 2a - youtu.be/oTVJM5BZttwClass B amplifier part 2b - youtu.be/qLYQAOWTHREClass C amplifier part 1 - youtu.be/xPTJmFtaGNcClass C amplifier part 2 - youtu.be/gYbMpu4NoZoClass D audio amplifier part 1 - youtu.be/w1Rq1cxfNEkClass D audio amplifier part 2 - youtu.be/pLXautZaH8cClass D audio amplifier part 3 - youtu.be/zhpOU6eb2gsClass D RF amplifier part 1 - youtu.be/idisyToMZ58Class D RF amplifier part 2 - youtu.be/wSFtRKrJ84MFurther reading:ti.com/lit/an/slaa701a/slaa701a.pdfmaximintegrated.com/en/design/technical-documents/app-notes/3/3878.htmlDatasheets and links used:mouser.com/datasheet/2/115/PAM8403-247318.pdfmurata.com/en-eu/products/productdetail?partno=BLM21AG102BH1%23Special Thanks to all my supporters on Patreon! Especially Ralf B., Paul Pr. Richard, Jonathan Alvarado and Tosta!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
The Class D audio amplifier - Basics (1/3) FesZ Electronics 2022-07-17 | #164 In this video I continue looking at the various amplifier classes, by starting working on the switching amplifiers. First up - the class D audio amplifier. I look at why a switching amplifier would be better than a linear one, and then I start looking at how the class D amplifier turns linear signals into square waves. So I mainly look at how you can get binary and ternary PWM modulation. Related videos:Class A amplifier part 1 - youtu.be/GtFnkXar5JUClass A amplifier part 2 - youtu.be/wdd18pYyFg0Class B amplifier part 1 - youtu.be/eu54pe0LhpMClass B amplifier part 2a - youtu.be/oTVJM5BZttwClass B amplifier part 2b - youtu.be/qLYQAOWTHREClass C amplifier part 1 - youtu.be/xPTJmFtaGNcClass C amplifier part 2 - youtu.be/gYbMpu4NoZoClass D audio amplifier part 1 - youtu.be/w1Rq1cxfNEkClass D audio amplifier part 2 - youtu.be/pLXautZaH8cClass D audio amplifier part 3 - youtu.be/zhpOU6eb2gsClass D RF amplifier part 1 - youtu.be/idisyToMZ58Class D RF amplifier part 2 - youtu.be/wSFtRKrJ84MFurther reading:https://www.ti.com.cn/cn/lit/an/sloa119b/sloa119b.pdfinfineon.com/dgdl/an-1071.pdf?fileId=5546d462533600a40153559538eb0ff1Special Thanks to all my supporters on Patreon! Especially Ralf B., Paul Pr. Richard, Jonathan Alvarado and Tosta!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
Modeling Photovoltaic Cells - LTspice model part 2/2 FesZ Electronics 2022-07-03 | #163 In this video I continue working on Solar cell models, by creating 2 spice library files - one for a basic model using the 5 parameters that define the 1D2R model; and secondly a more complex model that relies on the datasheet parameters to calculate the 5 parameters needed for the basic model. the algorithm is of course not perfect, but can give some useful insights into solar cell operation. Part1 Modeling Photovoltaic Cells - Theory: youtu.be/uV_z1ptufa4Part2 Modeling Photovoltaic Cells - LTspice model : youtu.be/ox0UtYe4owIModel files: drive.google.com/drive/folders/12GqirtjSYmyKqPwFhRln1cwizelioEOY?usp=sharingFurther reading and documentation:oa.upm.es/30687/1/2014enef.pdfcore.ac.uk/download/pdf/161058299.pdfacademicjournals.org/journal/AJEST/article-full-text-pdf/65AB83859477Used Datasheets:http://sunceco.com/wp-content/uploads/2017/01/SEP300-320.pdfSpecial Thanks to all my supporters on Patreon! Especially Ralf B., Paul Pr. Richard, Jonathan Alvarado and Tosta!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
Modeling Photovoltaic Cells - Theory 1/2 FesZ Electronics 2022-06-26 | #162 In this video I start working on the problem of modeling solar panels using a circuit simulator by looking at just what are the various electrical behaviors that a solar panel has, that need to be modeled. Part1 Modeling Photovoltaic Cells - Theory: youtu.be/uV_z1ptufa4Part2 Modeling Photovoltaic Cells - LTspice model : youtu.be/ox0UtYe4owIDocumentation and further reading:oa.upm.es/30687/1/2014enef.pdfcore.ac.uk/download/pdf/161058299.pdfUsed datasheet: firstsolar.com/en-Emea/-/media/First-Solar/Technical-Documents/Series-6-Datasheets/Series-6-Datasheet.ashxSpecial Thanks to all my supporters on Patreon! Especially Ralf B., Paul Pr. Richard, Jonathan Alvarado and Tosta!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
4 year anniversary special FesZ Electronics 2022-06-12 | This is a bit of a different episode. I would like to thank all of you for supporting the channel! To mark the 4 year anniversary of the channel, but also just passing the 25K subscriber mark, I prepared this video. Special Thanks to all my supporters on Patreon! Especially Ralf B., Paul Pr. Richard, Jonathan Alvarado and Tosta!If you liked this video be sure to check out my other videos and you can also subscribe to be up to date with all the new ones!If you want to support the creation of more and better videos please consider checking out: patreon.com/feszelectronics
