Patent ID: 8929100
Filing Date: 2015-01-06
Classification: H02M

Abstract:
1. A power converter apparatus for executing a conversion operation on electrical power supplied from an electrical power source and for supplying resultant converted electrical power to a load, the apparatus comprising a transformer having a primary winding and a secondary winding, a first conversion circuit connected between said electrical power source and said primary winding, said first conversion circuit configured to be controllable for converting an output voltage of said electrical power source to an AC voltage comprising alternating-polarity voltage pulses, and for applying said AC voltage to said primary winding, and a control circuit configured for detecting a value of current flow in said primary winding during each of said voltage pulses, for detecting successive values indicative of said converted electrical power, and for controlling said first conversion circuit to determine said voltage pulses based upon said detected values of current and upon said detected values indicative of converted electrical power; wherein said control circuit determines each of said voltage pulses based upon a value of current flow in said primary winding detected during a specific preceding voltage pulse, said specific preceding voltage pulse having occurred an even-numbered plurality of voltage pulses previously.