Scintillation Caution Light (7)

Published:2011/6/3 5:57:00 Author:Sue | Keyword: Scintillation, Caution, Light | From:SeekIC

The 220V alternating current voltage will provide the oscillator with +5V working voltage after reduction, stablization, rectification and filtration. In the daytime, RG has a low resistancevalue because of the light. C3 has a low level and the oscillator doesn't work. VLC and VT are disconnected. HL is not illuminated. At night, RG has a high resistance value because of the lack of light. The oscillator begins to work and VLC and VT are connected intermittently. HL begins to twinkle.



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