HIGH_POWER_ALARM_DRIVER

Published:2009/6/14 21:32:00 Author:jailer | From:SeekIC

In this circuit, a low-powered SCR is used to trigger a higher powered SCR. When a switch is opening (52, 53, 54) or closing (55, 56, 57), ei-ther SCR1 or SCR2 triggers. This triggers SCR3 via Dl, D2, and R5. BZ1 is a high-powered alarm of the noninterrupting type.



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