Load controller utilizing alternator field excitation

摘要

A DC motor control for an electrical implement such as a reel mower includes a regulator having additional inputs connected to a main intelligent control which includes interlock circuitry. The additional inputs provide both an on/off or voltage select function and an interlock function. A low cost and low current field regulator circuit provides switching and load control and eliminates high inrush currents and voltage and current transients. On/off functions and level control functions can be provided from a logic level signal, and the motors can be started smoothly by bringing the voltage up gradually.