Infrared automatic tap controller circuit

Published:2011/8/4 3:29:00 Author:May | Keyword: Infrared, automatic, tap controller | From:SeekIC

The diagram shows infrared automatic tap controller circuit. This controller circuit includes transmitting circuit and receiveing decoder control circuit. The transmitting circuit is composed of multivibratorand infrared transmitting diode; receiving circuit consists of infrared receiving tubes D1 and D2, operational amplifier IC2(CA741), tone decoder IC3(LM567), AC solid state relay IC4(SP110), power supply circuit and so on. In the transmitting circuit, multivibrator consists of IC1(555) and R1, R2, C1, etc, and its oscillator frequency f=1.44/(R1+2R2)C1, the corresponding frequency of the parameter isshown in the picture and itis about 40KHz. Oscillator output signal can drive TLN104 LED1~LED3 work to generate infrared pulse modulated wave.



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