Photoelectric coupling type TV remote shutdown circuit diagram

Published:2011/7/17 21:51:00 Author:zj | Keyword: Photoelectric coupling type, TV remote shutdown | From:SeekIC

Photoelectric coupling type TV remote control and shutdown circuitis shown in the diagram. 12V powerin the circuitisfrom the control switching power supply controlledby remote control circuit in the machineor +12V voltage output terminal produced by line circuit. After starting up, + 12V voltage chargeto C1 through the VD1.Optical coupler internal light emitting diodes is cut-off state, so the thyristor is not conductive. The power switch is self-locking and TV works normally.



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