Highly Reliable Generic Timer Circuit

Published:2011/7/14 8:37:00 Author:Joyce | Keyword: Highly Reliable, Generic , Timer | From:SeekIC

As shown in the figure is a highly reliable generic timing circuit composed of CD4060B. The time of timing the circuit ranges from 1 second to 1 hour, which is controlled by switch S2 control with 3 gears, namely: when S2 is 1, time of timing is 1 ~ 20 seconds ; when S2 is 2, time of timing is 15 ~ 320 seconds; when S2 is 3, time of timing 4 ~ 85 minutes . PR can be used to calibrate the timing time. The timing mode is counting type. CD4060B is a binary 14-level counter. When S1 turns from 1 to 2, the circuit will automatically reset, and timing will start. At that time, J is not actuated, normally closed contact J1 will be on, and voltage on socket CZ will supply power.



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