Patent ID: 7149097
Filing Date: 2006-12-12
Classification: H02M,Y02B

Abstract:
1. A switch mode AC/DC converter, comprising: an input inductor, comprising a first terminal and a second terminal; a rectifier, comprising a positive terminal coupled to the first terminal of the input inductor, and a negative terminal coupled to a ground node; a switch, comprising a first terminal coupled to the second terminal of the input inductor, a second terminal coupled to the ground node, and a control terminal; a bulk capacitor, comprising a positive terminal coupled to the first terminal of the switch, and a negative terminal; an isolation transformer, comprising a first terminal of a primary winding coupled to the second terminal of the switch, a second terminal of the primary winding coupled to the negative terminal of the bulk capacitor, and a secondary winding coupled to a load; an isolating diode, comprising an anode coupled to the negative terminal of the bulk capacitor, and a cathode coupled to the first terminal of the input inductor; and a control system coupled to a control terminal of the switch, comprising a feedback loop.