Ideal-Diode 5V reverse

186

02:43:11

Used as Power Protection circuit on R-Pi.
http://robotics.ong.id.au/2014/07/30/raspberry-pi-b-power-protection-circuit/

I used Infineon BCV62, and found that reverse polarity failed around 8V, which is due to a 6V rated emitter to base breakdown voltage which I added as a zener to simulation (SPICE does not account for parasitic elements, and it takes so much effort to work out what parasitic is causing a problem.) 

Make your own board :
https://github.com/xioTechnologies/Ideal-Diode

published 10 years ago

flowDAQ

10 years ago

Added 6V zener to show max emitter to base voltage which causes this circuit to fail to protect.

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