Optically controlled relay switch with self-locking function composed of phototransistor

Published:2012/8/27 22:50:00 Author:Ecco | Keyword: Optically controlled , relay , switch, self-locking function , phototransistor | From:SeekIC

With Darlington phototransistor,the amplifier circuit is simplified, and the circuit only can usea 3DG medium power transistor to drive relays.



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