High-precision Delay Timer Circuit

Published:2011/7/21 21:56:00 Author:Joyce | Keyword: High-precision Delay, Timer | From:SeekIC

As shown in the figure is a high-precision delay timer circuit. In the figure, Rt, Ct are timing elements, with timing time T being RtCt (s). Changing the values of Rt, Ct can adjust the time of timing, but by doing so, the stability will get worse, so, usually it is achieved by adjusting the comparative level of the comparator, that is to say, by adjusting RV1 in the figure. This circuit can improve the precision of timing. It requires comparator, capacitance, resistance of stable performance and switch mode with no disorder voltage, low on resistance and high cut-off resistance.



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