Uploaded March 2013 | Updated September 2026, 2 weeks ago
Tishitu explains
A fuel cell is a device that converts the chemical energy from a fuel into electricity through a chemical reaction with oxygen or another oxidizing agent. Hydrogen is the most common fuel, but hydrocarbons such as natural gas and alcohols like methanol are sometimes used. Fuel cells are different from batteries in that they require a constant source of fuel and oxygen to run, but they can produce electricity continually for as long as these inputs are supplied.
Welsh Physicist William Grove developed the first crude fuel cells in 1839. The first commercial use of fuel cells was in NASA space programs to generate power for probes, satellites and space capsules. Since then, fuel cells have been used in many other applications. Fuel cells are used for primary and backup power for commercial, industrial and residential buildings and in remote or inaccessible areas. They are used to power fuel cell vehicles, including automobiles, buses, forklifts, airplanes, boats, motorcycles and submarines.
There are many types of fuel cells, but they all consist of an anode (negative side), a cathode (positive side) and an electrolyte that allows charges to move between the two sides of the fuel cell. Electrons are drawn from the anode to the cathode through an external circuit, producing direct current electricity. As the main difference among fuel cell types is the electrolyte, fuel cells are classified by the type of electrolyte they use. Fuel cells come in a variety of sizes. Individual fuel cells produce relatively small electrical potentials, about 0.7 volts, so cells are "stacked", or placed in series, to increase the voltage and meet an application's requirements. In addition to electricity, fuel cells produce water, heat and, depending on the fuel source, very small amounts of nitrogen dioxide and other emissions. The energy efficiency of a fuel cell is generally between 40--60%, or up to 85% efficient if waste heat is captured for use.
TISHITU
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RESEARCH AND CONSULTANCY CELL OF INDUSTRIAL APPLICATION
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Copyright © All Rights Reserved tishitu.org Reg No.08122629691/SSI
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Please watch: "Lifi Communication by Arduino UNO Download Project"
youtube.com/watch?v=c4gC8dbaiZg
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Tishitu explains
A fuel cell is a device that converts the chemical energy from a fuel into electricity through a chemical reaction with oxygen or another oxidizing agent. Hydrogen is the most common fuel, but hydrocarbons such as natural gas and alcohols like methanol are sometimes used. Fuel cells are different from batteries in that they require a constant source of fuel and oxygen to run, but they can produce electricity continually for as long as these inputs are supplied.
Welsh Physicist William Grove developed the first crude fuel cells in 1839. The first commercial use of fuel cells was in NASA space programs to generate power for probes, satellites and space capsules. Since then, fuel cells have been used in many other applications. Fuel cells are used for primary and backup power for commercial, industrial and residential buildings and in remote or inaccessible areas. They are used to power fuel cell vehicles, including automobiles, buses, forklifts, airplanes, boats, motorcycles and submarines.
There are many types of fuel cells, but they all consist of an anode (negative side), a cathode (positive side) and an electrolyte that allows charges to move between the two sides of the fuel cell. Electrons are drawn from the anode to the cathode through an external circuit, producing direct current electricity. As the main difference among fuel cell types is the electrolyte, fuel cells are classified by the type of electrolyte they use. Fuel cells come in a variety of sizes. Individual fuel cells produce relatively small electrical potentials, about 0.7 volts, so cells are "stacked", or placed in series, to increase the voltage and meet an application's requirements. In addition to electricity, fuel cells produce water, heat and, depending on the fuel source, very small amounts of nitrogen dioxide and other emissions. The energy efficiency of a fuel cell is generally between 40--60%, or up to 85% efficient if waste heat is captured for use.
TISHITU
ISO: 9001-2008
RESEARCH AND CONSULTANCY CELL OF INDUSTRIAL APPLICATION
A Joint Accreditation System of Australia and New Zealand
Copyright © All Rights Reserved tishitu.org Reg No.08122629691/SSI
Accreditation No. M3111204IN
-~-~~-~~~-~~-~-
Please watch: "Lifi Communication by Arduino UNO Download Project"
youtube.com/watch?v=c4gC8dbaiZg
-~-~~-~~~-~~-~-

![Tank Circuit & Tuned Circuit
Tank Circuit & Tuned Circuit
An LC circuit, also called a resonant circuit, tank circuit, or tuned circuit, is an electric circuit consisting of an inductor, represented by the letter L, and a capacitor, represented by the letter C, connected together.
In a circuit Capacitor and Inductor coupled in Parallel One end of both are grounded and another is with high current switch where battery is connected , whenever we switch on the circuit high current flow in one direction because of DC. so behavior of capacitance and Inductor is to Oscillate with lack in time of charging so one charge another discharge until total energy is not consumed
JJD - Adventure [NCS Release]
this music is provided by NCS, the link to the track is
https://www.youtube.com/watch?v=f2xGx...
Download Files From Link:-
For formula :-
http://www.mediafire.com/file/yy8yxtkqtha82n1/Formulae_for_inductance.docx
For Circuit:-
http://www.mediafire.com/file/vrigr9l0pa4eger/tuned_or_tank_circuit.zip
TISHITU
ISO: 9001-2008
RESEARCH AND CONSULTANCY CELL OF INDUSTRIAL APPLICATION
A Joint Accreditation System of Australia and New Zealand
Copyright © All Rights Reserved www.tishitu.org Reg No.08122629691/SSI
Accreditation No. M3111204IN
-~-~~-~~~-~~-~-
Please watch: Lifi Communication by Arduino UNO Download Project
https://www.youtube.com/watch?v=c4gC8dbaiZg
-~-~~-~~~-~~-~- Tank Circuit & Tuned Circuit](https://i.ytimg.com/vi/mLN4QEo-Wgk/mqdefault.jpg)


![Full Wave Rectifier
FULL WAVE RECTIFIER
The full wave rectifier circuit consist of a two diodes connected with transformer which having AC input and the output shown across the load resistor.
Basically full wave rectifier classified into two parts that is:-Bridge rectifier and center tap rectifier
Center tapped full wave rectifier
In this rectifier positive terminal of diode D1 connected with the transformer and negative terminal connected with center tap through the resistor, similar for diode D2. For the positive half cycle of input. Diode D1 is in forward bias because P-junction of a diode D1 is connected with positive terminal of transformer and diode D2 is in reverse bias because P-junction of diode D2 is connected with negative terminal of transformer. So the current flows through the D1 and diode D2 is in inactive state. Now for the negative cycle of a input diode D2 is in forward bias becauseP-junction of a diode D2 is connected with positive terminal of transformerand D1 is in reverse bias because P-junction of diode D1 is connected with negative terminal of transformer.S0 the current flows through the D2 and D1 is in inactive state. But for both the conditions direction of current across the resistor is same at the center of the transformer. Therefore, for the input negative cycle we will get positive cycle at the output.
Advantages and Disadvantages of Center Tapped Full Wave Rectifier
The main advantage is that the output and efficiency is high because an AC supply delivers power during the both half cycles.
The Disadvantages of the Center tapped full wave rectifier are as follows:-
Each diode utilizes only one-half of the voltage developed in the transformer secondary and thus the DC output obtained is small.
It is difficult to locate the center on the secondary for the tapping.
The diode used must be capable of bearing high peak inverse voltage. Because the peak inverse voltage coming across each diode is twice the maximum voltage across the half of the secondary winding.
JJD - Adventure [NCS Release]
this music is provided by NCS, the link to the track is
https://www.youtube.com/watch?v=f2xGx...
Download Files From Link:-
http://www.mediafire.com/file/dbmsvfyxglfjp7b/full_wave_rectifier_proteus_file.rar
TISHITU
ISO: 9001-2008
RESEARCH AND CONSULTANCY CELL OF INDUSTRIAL APPLICATION
A Joint Accreditation System of Australia and New Zealand
Copyright © All Rights Reserved www.tishitu.org Reg No.08122629691/SSI
Accreditation No. M3111204IN
-~-~~-~~~-~~-~-
Please watch: Lifi Communication by Arduino UNO Download Project
https://www.youtube.com/watch?v=c4gC8dbaiZg
-~-~~-~~~-~~-~- Full Wave Rectifier](https://i.ytimg.com/vi/mrr_hNoSDA8/mqdefault.jpg)


![BRIDGE RECTIFIER FULL WAVE
Bridge Rectifier
The main difference between conventional rectifier and bridge rectifier is that it produces almost double the output voltage as a full wave center-tapped transformer rectifier using the same secondary voltage. The advantage of using this circuit is that no center-tapped transformer is required. In center tapped rectifier each diode uses only one-half of the transformer secondary voltage, so the DC output is comparatively small, also it is difficult to locate the center-tap on secondary winding of the transformer and the diodes used must have high Peak-inverse voltage.During the positive half cycle of the supply, diodes D1 and D2 conduct in series while diodes D3 and D4 are reverse biased and the current flows through the load During the negative half cycle of the supply, diodes D3 and D4 conduct in series, but diodes D1 and D2switch “OFF” as they are now reverse biased. The current flowing through the load is the same direction as before.
The smoothing capacitor converts the full-wave rippled output of the rectifier into a smooth DC output voltage. Generally for DC power supply circuits the smoothing capacitor is an Aluminum Electrolytic type that has a capacitance value of 100uF or more with repeated DC voltage pulses from the rectifier charging up the capacitor to peak voltage. However, there are two important parameters to consider when choosing a suitable smoothing capacitor and these are its Working Voltage, which must be higher than the no-load output value of the rectifier and its Capacitance Value, which determines the amount of ripple that will appear superimposed on top of the DC voltage.
Advantages of bridge rectifier
• The rectification efficiency of full-wave rectifier is double of that of a half-wave rectifier.
• Higher output voltage, higher output power and higher Transformer Utilization Factor in case of full-wave rectifier.
• The ripple voltage is low and of higher frequency in case of full-wave rectifier so simple filtering circuit is required
• No center tap is required in the transformer secondary so in case of a bridge rectifier the transformer required is simpler. If stepping up or stepping down of voltage is not required, transformer can be eliminated even.
• For a given power output, power transformer of smaller size can be used in case of the bridge rectifier because current in both primary and secondary windings of the supply transformer flow for the entire ac cycle
Disadvantages of Bridge Rectifier
• It requires four diodes.
• The use of two extra diodes cause an additional voltage drop thereby reducing the output voltage.
JJD - Adventure [NCS Release]
this music is provided by NCS, the link to the track is
https://www.youtube.com/watch?v=f2xGx...
Download Files From Link:-
http://www.mediafire.com/file/x44seqw9rjxmqsm/bridge.zip
TISHITU
ISO: 9001-2008
RESEARCH AND CONSULTANCY CELL OF INDUSTRIAL APPLICATION
A Joint Accreditation System of Australia and New Zealand
Copyright © All Rights Reserved www.tishitu.org Reg No.08122629691/SSI
Accreditation No. M3111204IN
-~-~~-~~~-~~-~-
Please watch: Lifi Communication by Arduino UNO Download Project
https://www.youtube.com/watch?v=c4gC8dbaiZg
-~-~~-~~~-~~-~- BRIDGE RECTIFIER FULL WAVE](https://i.ytimg.com/vi/nzAaLTRENBs/mqdefault.jpg)


