fzabkar wrote:
Hopefully I have identified the correct pin on each capacitor. If not, then measure the voltage at the other pin, or the voltage across the capacitor, or at the inductor.
PMPB20XPE, NXP, -20V, -10.3A, P-channel Trench MOSFET, marking 1D, DFN2020MD-6 (SOT1220):
https://assets.nexperia.com/documents/data-sheet/PMPB20XPE.pdfhttp://chip.tomsk.ru/chip/chipfile18-x.nsf/all/C3479264BEB2373C46257DC1001E5E49/$File/PMPB20XPE.pdfThank you, that's really helpfull.
I got power accross capacitor
v1 =1.356
v2 =1.052
v3 =2.707
v4 =1.805
Vout=3.257
That doesn't look bad.
I measure 0.0 on the brown inductor, I've put a red cross where I measure it. I don't know how to measure the black inductor.
Thanks
Sam