Time controller circuit diagram using CD4060

Published:2011/10/20 21:20:00 Author:Rebekka | Keyword: time controller | From:SeekIC

When the circuit gets power, it is connected instantaneously, and R5, C3 constitutes the differentiating circuit to guarantee delay time from zero. Under oscillator signal's influence, CD4060's internal counter starts to work, 3 feet is the 14th level counter's out port, if it makes 3 feet switches to the high level from low level, it needs t=213×2.2KC (second), and the low voltage of pin 3 causes the triode V closure. When delay time reaches, pin 3 jumps to high level from low level, then V is saturated breakover after being current limited by R6, and relay K pulls in, then the load gets the electricity. This electric circuit's delay time can be adjusted in 2.1~4 hours.



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