Patent ID: 8228021

Claim:
A converter circuit including: a positive terminal connectable to a positive pole of a power supply, and a negative terminal connectable to a negative pole of the power supply; and a phase circuit including: a switch module having first and second switch components, a first side of the first switch component forming a first connection, a first side of the second switch component forming a second connection, and second sides of the first and second switch components being interconnected to form an intermediate connection; a first winding connected between the first connection and one of the positive and negative terminals, the second connection being connected to the other of the positive and negative=terminals; a first diode connected, in reverse bias, between the intermediate connection and the terminal to which the first winding is connected; a second winding connected between the intermediate connection and the terminal to which the second connection is connected; and a second diode connected, in reverse bias, in series to the second winding and connected between the intermediate connection and the terminal to which the second connection is connected, wherein the second winding is inductively coupled to the first winding.