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/diy/ - Do It Yourself

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>> No.1441811 [View]
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1441811

Can I use this kind of circuit to charge a 9V battery with constant current? I don't have any rail-to-rail input op-amps, so I have to limit the current on the "low side" of the battery.

How should I stop the charging when the battery voltage reaches some limit, e.g. 9 V?

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