Whadda WSI8004 power controller for precise DC motor and lighting control

This control circuit is ideal for the precise control of DC motors, lighting stages, small heaters and other applications. The circuit converts a DC voltage into a series of pulses, so that the pulse duration is directly proportional to the value of the DC voltage. The great advantage of such a circuit is that almost no power is lost in the control circuit. Protected against overload and short circuit.