[Warning: Ethan's been trying to study again...DANGER!]
Is the rationale of using low-pass filters in PSU's to make them quieter? Bare with me on this one... How does the low pass filter work in a DC circuit??? Where's the inductive or capacitive reactance here?
Is the random thermal noise, and other high frequency junk, enough "AC" to make the filter work? I know that's phrased strangely. What I mean is will it have an effect? How would you design the filter, with what f-3 point would be appropriate? I would think as low as possible would be OK (even down to 1Hz) since you're concerned with having pure (...as possible) DC, right?
This seems too easy and good to be true. The only downside I would think would be higher output Z from the added load?
[Insert Umbrella Icon here--I feel a storm abrewing :shock: ]
Is the rationale of using low-pass filters in PSU's to make them quieter? Bare with me on this one... How does the low pass filter work in a DC circuit??? Where's the inductive or capacitive reactance here?
Is the random thermal noise, and other high frequency junk, enough "AC" to make the filter work? I know that's phrased strangely. What I mean is will it have an effect? How would you design the filter, with what f-3 point would be appropriate? I would think as low as possible would be OK (even down to 1Hz) since you're concerned with having pure (...as possible) DC, right?
This seems too easy and good to be true. The only downside I would think would be higher output Z from the added load?
[Insert Umbrella Icon here--I feel a storm abrewing :shock: ]