Patent ID: 7002818
Filing Date: 2006-02-21
Classification: H02M,Y02B

Abstract:
1. A DC to AC power converter comprising: an input circuit for receiving input power and creating high frequency pulses of varying width; a transformer for transforming the high frequency pulses into a first series and a second series of transformed pulses of alternating first and second polarity, the transformer comprising a primary winding and a secondary winding, the primary winding coupled to the input circuit; an output circuit including a plurality of switches for providing an AC output, the output circuit coupled to the secondary winding; and a controller for controlling the switches to provide a continuous current path through the output circuit, wherein the controller controls the switches such that each switch is on except when blocking a pulse of the second polarity during a first half cycle of the AC output and when blocking a pulse of the first polarity during a second half cycle of the AC output.