Recommended · for some experience
EEVBlog #1116 - How to Remove Power Supply Ripple
Why people recommend it
Dave Jones shows that linear regulators reject little high frequency ripple and demonstrates a capacitance multiplier as a cheap fix; a regular link in ripple filtering questions.
Watch for: the regulator ripple test from 5:17 to 6:15
In their words
In EEVBlog #1116, Dave discusses a method to remove power supply ripple, and goes on to show (see 5:17 to 6:15) that you cannot count on linear regulators to remove your input ripple.
anrieff on electronics.stackexchange.com, Jan 2020. CC BY-SA.
Now I have taken the trouble to watch two movies on YouTube (the Dave's movie suggested by C36 and the FesZ's movie) and I saw that I had basically guessed the idea.
Circuit fantasist on electronics.stackexchange.com, Nov 2020. CC BY-SA.
Single-resistor + capacitor on transistor-based capacitance multiplier as seen here and explained by Dave’s EEVBlog here and his video here:
EJE on electronics.stackexchange.com, Jan 2023. CC BY-SA.
