Thermoelectric algorithm offers precise control

The 5R7-573A is an open board temperature controller designed with a proportional integral control algorithm to provide precise control to thermoelectric (Peltier effect) modules. The H-bridge control provides a seamless transition between heating and cooling, eliminating dead spots.

The controller offers a red LED to indicate a heating mode and green to indicate a cooling mode. Pulse width modulation controls the power level in the thermoelectric module at a base frequency of 900 Hz. Power resolution is one of ±255 steps in the load circuit control. The input voltage extends from 6 to 28 Vdc and the output voltage ranges from 0 to 36 Vdc. The temperature extends from -40 to 250°C with a resolution of 0.1°C.