This application note will describe a low-cost microcontroller-based replacement for the mechanical thermostat which eliminates these drawbacks. The PIC10F204, Microchip’s 6-pin PICmicro® ...

Triacs are bidirectional ac switches that can control loads with currents as high as 25A rms at voltages as high as 600V. They find wide use in motor-speed, heater, and incandescent-lamp controls.

For the PDF version of this article, click here. More than 80% of the motors bought each year continue to be low-cost single-phase ac motors. Because these motors are not very efficient when ...