Wednesday, November 23, 2011

Under voltage detector with optocoupler




You can use any kind of load: relay driver, fet switch, LEDS, bulb and more. Design the load driver so the optocoupler is driver for the 'driver transistor' ;)

This circuit can be used as undervoltage detector for LiPo batteries, Li ion bateries and more.

I use this circuit in my automatic grid of offgrid power strip

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