How do you deliver constant power when the load impedance isn't constant? That problem arises, for example, in trying to maintain a warm LCD display on an outdoor gas pump in cold climates. As the ...

Constant voltage regulation and constant current regulation are well known and familiar, but constant power regulation is a bit less common. The concept is demonstrated in the following two sketches ...

The heart of the device that [Kerry] designed is based on 6 power MOSFETs, a few operational amplifiers and an Arduino compatible ATmega328p microcontroller. Sense resistors are used to measure how ...

Actuators and sensor systems sometimes include a resistive load that requires a controllable, constant-power drive, regardless of the load's resistance value. If that value changes with operating ...