Domestic Time Controller Circuit

Published:2011/8/10 1:41:00 Author:Felicity | Keyword: Domestic, Time Controller | From:SeekIC

The field signal of the electric watch is voltage rising transformed by interface circuit LCB078 and then put into 5C27B field / BCD decoder. The signal is encoded as binary-decimal BCD code which is compared with the preset time signal consists of swich KL4.When the two are the same , high voltage output by main circuit will make the flip-flop to turn,and the relay drives the related load to work. When they are different , the main circuit output low voltage and the related load will not work.If it need to time several times, Multiple dial switches can be used in parallel connection.



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