Optical remote control power switch circuit

Published:2011/6/28 0:12:00 Author:Fiona | Keyword: Optical remote control, power switch | From:SeekIC

It is a light-controlled power remote control equipment,it can be used for the light of the torch triggering.The circuit consists of two parts:one is the light control circuit;the other one is controlled circuit.The light-controlled part consists of the photoelectric transistor VT1,transistor potentiometer RP and phase transistor VT2.The controlled part consists of the transistor VT3 and the relay KM.When the key switch SB is pressed,the both ends of the voltage-regulator diode vD5 obtains the l 2V DC voltage.The light-emitting diode VD6 displays work.Resistor Rl provides bleeder current loop to the capacitor C1.vD7 is the protection diode.



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