Published:2011/5/13 4:04:00 Author:Ecco | Keyword: Control double paper photosensitive | From:SeekIC
In the figure, the 6.3V and 2.5V of the transformer are served as light source for indicator light and spotlight electic bulb respectively. When the light of 3DU13 is resisted, the current can reach 8.5mA; When there's only one board to resist light , the current is 5~6mA, but at the same time, the relay still works; When there're two boards, the current is 3~4mA, the relay stops working. The mechanical action can drive 5kg iron absorption, and makes a control of a series of mechanical action, or connects to warning alarm.
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