Switched capacitor interleaved forward power converter

Claim 1

A DC-to-DC interleaved timing forward converter for applying a first voltage from an input power source to an output load at a second voltage, comprising: first and second electrical transformers having a predetermined turns ratio, a capacitor sequentially coupled to both said first and second transformers for filtering said first and second voltages, and switch means for selectively switching aid first and second transformers alternately and sequentially to said input power source, said capacitor, and said output load, so that said capacitor applies a first potential to said first transoformer during a first time interval when said first transformer is not connected to said input power source by said switch means, and also applies said first potential to said second transformer opposing said first voltage during said first time interval, and so that said capacitor applies a second potential to said second transformer during a second time interval when said second transformer is not connected to said input power source by said switch means and also applies said second potential to said first transformer opposing said first voltage during said second time interval, said switch means being further arranged so that said first and second transformers are connected to said output load in time interleaved fashion, said first electrical transformer compring a primary winding and a secondary winding, said second electrical transformer comprising a primary winding and a secondary winding, each of said transformers being connected with an opposing polarity sense between said primary winding and said secondary winding, and with the same polarity sense, respectively, with respect to said input power source and with respect to said load, wherein said switch means further comprises: first switch means for connecting said primary winding of said first electrical transformer to said input power source in a first position and to said capacitor in a second position, and second switch means for connecting said primary winding of said second electrical transformer to said input power source in a first position and to said capacitor in a second position, said first and second switch means operatively engaged so as to apply said input power source to said primary winding of said first and second electrical transformers in time phase opposition so as to minimize current deviations of said input power source.