Abstract: A system for implementing current sharing between packaged power converter modules is provided. The system includes a respective current monitoring circuit for generating a current signal indicative of the current supplied by each power converter module, and a respective inverter for inverting the current signals. The current signals and the inverted current signals from each module are provided to a differential current share bus. For each module, an error amplifier is provided to supply a remote sense terminal of the module with a control signal indicative of the difference between the current share bus reference level and a respective current signal.

Abstract: An electro-magnetic interference (EMI) filter having a boost mode amplifier integrated therewith is provided. The boost mode amplifier utilizes the filtering inductors of the EMI filter as energy storage devices to control the input voltage supplied to a DC-to-DC power converter. A controller is also provided for selectively activating the boost mode amplifier, maintaining the input voltage provided to the converter within a predetermined operating range.

Abstract: A method for operating a switching power supply is provided. The method includes generating a half sine wave signal for coupling to a pulse width modulator, detecting the zero crossings of the half sine wave signal, and altering the pulse width of the supply output such that the on and off timing of the pulse width corresponds to a zero crossing of the half sine wave signal.