Simple fourth gear dimmer switch circuit

  
Easy to take along four dimmer switch circuit shown in Figure 8, which has a 4-speed brightness of combination: When the switch Sl, S2 and S3 compete portion is closed, the lam
Simple fourth gear dimmer switch circuit - schematic

p E brightest; when Sl, Pa l two together, s2 open lamp E in bright state; when SI, S2 closed, S3 open, light E in a more clear state; stage when Sl, S2, S3 buckle open, light E is the darkest; if S1 is open, light E off. L used 20 - Electric -10W R light ballast sense, E power should not exceed 60W.




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