Uploaded August 2025 | Updated September 2026, 1 week ago
#258 In this episode I look at the main cause of noise and ripple appearing at the terminals of a power supply and why these 2 elements are important. After understanding which of these is actually needed to be measured, we move on to some probing techniques which allow the best possible accuracy by reducing the measurement noise.
Related content:
SMPS Noise Analysis Series
Ep1 - The Basics: youtu.be/JPRPEniS7Po
Ep2 - The Passives: youtu.be/8NCtyTy51Fk
Ep3 - The Actives: youtu.be/2Vi2MoN7Mhw
Ep4 - Filters and Shielding: youtu.be/RrBMD9RFCLM
Ep5 - A Practical Example: youtu.be/ZgI4SOl8IBo
Further reading:
analog.com/en/resources/app-notes/an-1144.html
flexpowermodules.com/resources/fpm-designnote022-output-ripple-noise-measurement
analog.com/media/en/technical-documentation/application-notes/an104f.pdf
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
#258 In this episode I look at the main cause of noise and ripple appearing at the terminals of a power supply and why these 2 elements are important. After understanding which of these is actually needed to be measured, we move on to some probing techniques which allow the best possible accuracy by reducing the measurement noise.
Related content:
SMPS Noise Analysis Series
Ep1 - The Basics: youtu.be/JPRPEniS7Po
Ep2 - The Passives: youtu.be/8NCtyTy51Fk
Ep3 - The Actives: youtu.be/2Vi2MoN7Mhw
Ep4 - Filters and Shielding: youtu.be/RrBMD9RFCLM
Ep5 - A Practical Example: youtu.be/ZgI4SOl8IBo
Further reading:
analog.com/en/resources/app-notes/an-1144.html
flexpowermodules.com/resources/fpm-designnote022-output-ripple-noise-measurement
analog.com/media/en/technical-documentation/application-notes/an104f.pdf
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
