Double-key touching lamp switch circuit (3)

Published:2012/9/4 22:41:00 Author:Ecco | Keyword: Double-key , touching lamp switch | From:SeekIC

As shown in the figure, it is a double-key touching lamp switch with Darlington transistor, the feature of circuit is that touching tablet and 220V AC mains are isolated by power transformer T, it is relatively safer. The T can be 220V/9V, 5VA small power transformer; K should use ultra - small JZC-22F/2Z-09 power relay.



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