lampblack absorber automatic control circuit

Published:2011/8/16 2:10:00 Author: | Keyword: lampblack absorber, automatic control | From:SeekIC

The working principle:the gas sensor and W1 in the picture form the gas detection circuit,and the 5V AC power of power transformer will heat the heating silk of the gas sensor. Inverter F1, W2, thermistor Rt form the temperature sensing circuit.The high potential signal output by two detection circuit will control the motor control circuit formed by F2, F3, R2, VT2, J1 through the isolative diode VD8, VD9 respectively. Photosensitive resistor CdS, W3, F4, R3, VT3, J2 form the lighting control circuit; IC1 is the music alarm circuit, and it is controlled by the gas detection circuit.



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