[sdiy] Signals leaking into the PSU?

[brianw]

Very interesting point. Thanks for describing that.

Would this mean that you can also save money by specifying a capacitor with a lower maximum voltage? ... or is this effect just due to fewer Coulombs stored in a smaller cap to the same voltage level? Sorry, I haven't bothered to do the math on the circuit...

Brian


On Feb 21, 2023, at 1:34 AM, Mike Bryant <mbryant at futurehorizons.com> wrote:
> I've used it since then, especially on 48V phantom power circuits because having a large smoothing capacitor charged to 48V is a lot of energy that could get zapped into a microphone or the input transistors (despite being protected), whereas a much smaller capacitor and this circuit gives almost the same effect without much actual stored energy.