Patent ID: 6937483

Claim:
An isolated boost DC/DC converter, comprising: an inductor capable of storing energy from a direct current power source; an inverter circuit coupled to the inductor and capable of converting direct current to alternating current; a transformer coupled to the inverter circuit, the transformer comprising a primary winding and a secondary winding and capable of stepping up voltage of the alternating current; a rectifier circuit coupled to the transformer and comprising first and second switches coupled to a first end of the secondary winding, the rectifier circuit capable of converting the stepped up alternating current to direct current for delivery to a load; and a programmable controller coupled to the inverter circuit and to the rectifier circuit and configured to generate control signals to: operate the inverter circuit at a first voltage level during a first time interval; operate the inverter circuit at a second voltage level during a second time interval; and turn on the first switch during the first time interval, wherein the rectifier circuit is configured to short circuit the secondary winding through a current path including the first switch during the second time interval.