How to control one light with multiple switches
Source: InternetPublisher:小胖友 Updated: 2012/11/12
K1 and K2 are single-pole double-throw switches. When the switch is in the position in the picture, the light will light up.
K1 and K2 are single-pole double-throw switches, and K3 is a double-pole double-throw switch. In this circuit, when any one of the three switches is flipped, the on and off state of the light will change. As needed, several double-throw switches can be added between K1 and K2 to connect multiple switches to control a lamp circuit.
![](http://www.eeworld.com.cn/circuit/upload/538a1bc8a409ff500dc8e0cb6c6d7ecb/d0d81fec-3c63-11ec-8c4c-086126841eb8.jpg)
![](http://www.eeworld.com.cn/circuit/upload/538a1bc8a409ff500dc8e0cb6c6d7ecb/d0d93162-3c63-11ec-8dcd-086126841eb8.jpg)
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