Suggest Filtering Upgrade for ICAN PSU

[ben7]

Re: Suggest Filtering Upgrade for ICAN PSU

They can be any colour...

Yeah, I have some yellow ones, a few blue, red, black, dark blue, gray, and white.

[bigbeark]

Re: Suggest Filtering Upgrade for ICAN PSU

Chipping in with a picture:

X caps aren't always yellow.... this is from an old psu from the times of 486/pentium .. you can see the x caps, the y caps behind and a ntc thermistor

And I can see here a coil formed around a rod, instead of a ring, being used as a primary filterind device!

How is the inductance of these coils measured?

[mariushm]

Re: Suggest Filtering Upgrade for ICAN PSU

It's a shot made at a steep angle, to show the writing on the X cap.

You can barely see the holes for a second inductor and a bit of one lead - I cut out a large inductor that was sitting right before R49

Here's the full board, minus a few capacitors and the main switchers and inductors:



ps. the small vertical pcb on the right is nice, has the protection circuitry, some comparators and opamps and even a 555