Abstract: A DC motor control system reduces power demands imposed upon a DC power source energizing a utilizing device by varying the time during which power application occurs, but not the magnitude of the power which remains constant. The DC motor control system includes a transducer/resistor network, a trigger pulse circuit, a control signal circuit, a driver circuit, and a switch network. The control signal circuit outputs a duty cycle control signal as regulated by the transducer/resistor network and the trigger pulse circuit. The transducer/resistor network permits an operator to determine the duration of the duty cycle control signal, which varies from 0% to 100%, while the trigger pulse circuit establishes the frequency of the duty cycle control signal. The driver circuit receives and amplifies each duty cycle control signal outputted by the control signal circuit. The driver circuit inputs each amplified duty cycle control signal into the switch network to activate it.

Abstract: The present invention is a two unit electronic control system to reduce power demands imposed upon direct current power sources. The present invention comprises a contact/resistor network, a trigger generator, a pulse generator, a waveform stabilization circuit, a driver circuit, a voltage regulation circuit, a noise suppression circuit, a transient suppression circuit, a field effect transistor network and primary and secondary on/off control circuits. The input can be resistance, voltage, current or capacitance which is varied in response to an external stimulus. The chosen input is conditioned and applied to vary the duty cycle of a repeating pulse signal. That pulse signal is conditioned and applied to a switching device which controls the current from the DC power source to the load. The number of switching devices comprising the network will vary from one to many dependent upon the current carrying demand of the load and the current handling capability of the switching device utilized.