Patent ID: 8587972
Filing Date: 2013-11-19
Classification: H02J,H02M,Y02E

Abstract:
1. An apparatus comprising: means for receiving a sensed voltage of a voltage applied to a load resistance and a sensed current of a current passing through the load resistance where the voltage is a rectified voltage from a transformer's output whose input is from a DC-to-AC power converter being supplied from a DC power generator having an internal resistance, said means being operable to output a product of the sensed voltage and the sensed current; means for receiving the product and operable for outputting a rate of change of the product; means for receiving the rate of change and operable for outputting an integrated voltage indicating an accumulative rate of change of the product; means for receiving the integrated voltage and operable for generating a voltage waveform having a frequency determined by the integrated voltage; and means for receiving the voltage waveform and operable for using the voltage waveform to output a control signal for controlling a frequency of the DC-to-AC power converter where the apparatus substantially matches an input resistance of the transformer to the internal resistance, thereby maximizing power transfer to the load resistance.