Circuit diagram of controlling groups of light by one single switch

Published:2011/9/7 1:25:00 Author:Vicky | Keyword: controlling, lingt, single switch | From:SeekIC

As shown in the above circuit diagram, when the power switch K is conducted for the first time, 1# light illumines at once. Because voltage of the capacitor C3 would not change suddenly, the photo-coupler G is conducted only at the moment that switch K is conducted. But soon G stops. In addition, saltation does not occur to the voltage of the capacitance C4, so silicon controlled rectifier S1 would not be conducted (C1 hasn’t generated voltage at the moment of the connection of K, likewise, S2 would not be conducted). Therefore, 2# and 3# light would not lighten.



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