AC_STATIC_SPDT_SWITCH

Published:2009/7/6 20:11:00 Author:May | From:SeekIC

An SPDT solid state relay is shown. When voltage is applied Q1 will tum on, activating load #1, because the full line voltage appears across Q2, supplying gate current through R1. When S1 is closed, Q2 turns on removing the gate drive from Q1 and activating load #2.



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