Light isolation solid power relay circuit

Published:2011/6/22 2:52:00 Author:TaoXi | Keyword: Light isolation, solid, power relay | From:SeekIC

The two circuits use the SC146B type 200V, 10A bidirectional thyristor as the load current contact point which is produced by the GE company. The bidirectional thyristors are triggered by a normal SBS(2N4992) circuit. This circuit is controlled by a light composite tube which can be used as the AC light switch through the DA806 bridge. In order to make this relay to work in other city electricity voltage, we need to adjust the components with the * mark to maintain the current. The rated value needs to be changed according to the need. If necessary, we can use the incandescent lamp to replace the light-emitting diode.



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