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Posted: 19 Jun 2012

Taken: 17 Jun 2012

0 favorites     0 comments    146 visits

1/250 • f/5.6 • 10.2 mm • ISO 80 •

PENTAX Corporation PENTAX Optio S5z

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Keywords

shadow •
9V •
dummy load •
OSHW •
KiCad •
potentiometer •
PCB •
lithium •
battery •
electronics •
Vishay •

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YauDL - brainfart

YauDL - brainfart
I added a 3V battery to pull the p-ch gate to -3V. It improves the R(ds)-on at small positive input voltages, but completely defeats the reverse polarity protection. ARGH. I do have to add a Schottky diode at last.
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