PSA Arduino Valve Controller

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A simple arduino-based controller manages two solid state relays. The arduino runs a cycling program and manages the gates on two triacs. These allow the controller to energize and de-energize the Versa valves with 120vac.

Below are the timing diagram and the controller schematic. The c-code is simple enough to write.

 

Download arduino code here.

Again, you can see how this is used with my liquid nitrogen generator.

You can watch a video of this device here.

You may also be interested in my induction heater tutorial.