Old electric fan remote control modification

Published:2011/7/25 21:03:00 Author:Christina | Keyword: Old, electric fan, remote control, modification | From:SeekIC

(1).Remote control receiving circuit: the circuit is composed of the infrared receiver REC and the IC1 (555), in peacetime the output port of REC has the high level. (2).Normal wind control: when the power is connected, the on-clear circuit of IC2 makes the Q0 has the high level, and the LED1 which is connected with it is lighted. (3).Natural wind control: When you press the remote controller the 4th time, the Q4 of IC2 has the high level, the multivibrator which is composed of the IC3(555) starts oscillating. (4).Sleep wind control: When you press the remote controller the 5th time, the Q5 of IC2 outputs the high level, the 3DG12 conducts, the J1 operates, the J1-1 closes.



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