Single Transistor Relay Toggle Circuit


Posted on Feb 5, 2014

The circuit requires a double pole, double throw relay in conjunction with a single transistor to allow toggling the relay with a momentary push button. One set of relay contacts is used to control the load, while the other is used to provide feedback to keep the relay activated or deactivated. Several push buttons can be wired in parallel to allow toggling the relay from different locations..


Single Transistor Relay Toggle Circuit
Click here to download the full size of the above Circuit.




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