Multi-control switch circuit diagram 3

Published:2011/9/26 1:59:00 Author:Rebekka | Keyword: Multi-control switch | From:SeekIC

This example describes a multi-place control switch with time delay function,which usesmulti-buttons to control one rout light. Pressing any button can lit the light, the lights will be automatically turn off hin about 3mins. The switch circuit is compose of S1 ~ S5, power circuit and timing control circuit. The circuit is shown as the chart. Somponent selection.R1 and R2 use 1/4W or 1/8W carbon film resistors. C1 and C2 select aluminum electrolytic capacitors with voltage in 25V. VD uses 1N4001 or 1N4007 type silicon rectifier diodes. IC uses NE555 type time-base integrated circuit.



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