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More  Latch Circuits

Low Voltage Latching Relay Driver


Using some small super capacitors, this circuit can latch and unlatch a mechanical relay with 10 Amp contacts, from a small 3 volt power source.  By using a latching relay, power can be controlled to a load with a tiny battery.

Click on Drawing Below to view PDF version of Schematic

Circuit Low Voltage Latching Relay Driver designed by David A. Johnson, P.E.

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