Illumination Controller (5)

Published:2011/7/6 0:10:00 Author:Sue | Keyword: Illumination, Controller | From:SeekIC

When the power is on, the 220v ac voltage will generate about 6V direct current voltage after it is reduced by C6,stablized by VS,rectificated by VD, filtrated by C5. The voltage will provide IC1 and IC2 with working voltage. When S1 is pushed, IC2's pin 13 will input a high level pulse. IC2 will be altered to the other illumination mode automatically. When IC2's pin 7-10 output high level, the controlled thyristors VT1-VWwill beilluminated. When IC2's pin 7 outputs high level, VT1 is connected and the first circuit of illuminations HL1are illuminated. When IC2's pin 8 outputs high level, Vm is connected and the second circuit of illuminations HL2are illuminated. When IC2's pin 10 outputs high level, VT4 is connected and the 4th circuit of illuminations HL4are illuminated.



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