Remote Multi Point Control Switch Circuit

Published:2011/7/21 18:43:00 Author:Joyce | Keyword: Remote, Multi Point , Control , Switch | From:SeekIC

As shown in the figure, the switch circuit includes a depressurization and rectification circuit, a bistable trigger circuit and a silicon controlled control circuit. It will remote control the start up and close down of electric equipment .The depressurization and rectification circuit provides the controller with + 13 V dc voltage. 555, R5, R4, R13, C1, C2, and some other components constitute the bistable trigger circuit. At the moment it is switched on, because the voltage on C1 will not change suddenly, 555 will set, and C2 will be charged to 12V through R5. At this time, if one presses K1 (K2 or Ks), C1 will soon be charged to2/3 VDD = 8 V, and 555 will reset, feet 3 will show a low level, and SCR will cut off. At the same time, VT will cut off; feet 6 of 555 will display a high level to keep 555 in a stable state of reset.



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