1_h_WITH_END_CYCLE_SWlTCH

Published:2009/7/12 22:43:00 Author:May | From:SeekIC

National LM122 timer is connected with manual controls for start, reset, and intermediate termination of 1-h timing cycle started byclosing S1. Once timing starts, S1 has no further effect. Moving S2 up ends cycle prematurely with appropriate change in output state. Moving S2 down resets timing capacitor to 0 V without changing output; releasing S2 starts new timing cycle.-C. Nelson, Versatile Timer Operates from Microseconds to Houm, National Semiconductor, Santa Clara, CA, 1973, AN-97, p 9.



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