Under-voltage protection on external input

Support for the UPS PIco HV3.0A Plus

Under-voltage protection on external input

Postby dhaglund » Sun Apr 23, 2017 1:16 am

Hi.

I great feature for the UPS PIco Plus would be under-voltage protection on the extended voltage input. When the voltage drops below a fixed value (say 11.0V for a car battery) the PI should shut down and not start again until the external voltage is above another fixed value (say 11.5V) and possibly also not until the external power has been switched off and on again.

I'm thinking that this should be possible to do using the built-in relay and maybe a few external components. Firmware support would required as well of course.

Is this something that could be implemented?

What are the rest of you using for protecting you battery powered PIs?
dhaglund
 
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