Sound control infrared remote control switch circuit

Published:2011/6/19 20:16:00 Author:TaoXi | Keyword: Sound control, infrared remote control, switch circuit | From:SeekIC

The infrared remote control switch circuit which uses the sound control circuit BH-SK-I is as shown in the figure, the generator is the multivibrator which is composed of the 555, the output pulse drives the infrared emission diode to output the infrared pulse signal. The receing tube matches the transmitting tube, it changes the infrared pulse into the electrical signal, and this electrical signal is amplified by the BG1 to trigger the IC2 sound control integrated circuit BH-SK-I. After triggered by the BG1, the pin-12 outputs the high level to make the BG2 to conduct, and the relay closes, the socket CZ gets power. If you want to close the machine, you just need to press the button AN, the IC2's internal trigger turns to output the low level, the BG2 cuts off, the relay releases, the socket loss the electricity.



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