LONG_INTERVALS_WITH_SMALLC

Published:2009/7/12 23:35:00 Author:May | From:SeekIC

Use oftwo CA3098 dual-input precision level detectorseliminates need for expensive high-capacitance low-leakage timing capacitors when delay intervals of several hours are required. For 4-h timer, CT is only 16 μF if Rc is 22 megohms and RD is 100 kilohms. Article traces circuit operation and gives design equations.-G. J. Granierl,Precision Level Detector IC Simplifies control Circuit Design,EDN Magazine, Oct 5,1975,p 69－72.



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