Patent ID: 7535734

Claim:
A high power-factor AC/DC converter, comprising: a. full-wave rectifier, said full-wave rectifier having an input, said input connected to a single phase AC voltage source; b. boost-flyback semi-stage, said boost-flyback semi-stage comprising an input, a boost output and a flyback output; c. bulk capacitor, said bulk capacitor connected to said boost output of said boost-flyback semi-stage; d. DC/DC semi-stage, said DC/DC semi-stage being selected from a group consisting of a forward module and a flyback module, said DC/DC semi-stage module having an input connected to said bulk capacitor; e. first load, said first load connected to said flyback output of said boost-flyback semi-stage and said output of said DC/DC semi-stage; and f. control switch, said control switch connected to said boost-flyback semi-stage and said DC/DC semi-stage.