Ni-cad discharge limiter

Posted on Apr 18, 2012

The circuit disconnects the battery from the load when output voltage falls below a preset level. Cl charges through R1 and turns on Q2. Collector current flows through R2 turning Ql on and battery is connected to the load

Ni-cad discharge limiter
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When the output voltage falls below a point set by RV1, Q2 turns off, Ql turns off and further discharge of the battery is prevented.

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