Published:2011/6/29 4:14:00 Author:Rebekka | Keyword: Cycle timer, preset function | From:SeekIC
This circuit is a cycle timing controller composed of 555 time base circuit. The time base signals outputed by 555 circuit passes the frequency demultiplication of the digital circuits and gets multi-stage timing control output. It passes the cooperation of the relay, and forms the preset boot, preset shutdown automatic cycle time controller. Its circuit is shown in figure.
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