Patent ID: 6177736
Filing Date: 2001-01-23
Classification: H02M

Abstract:
A DC/DC boost converter for a fuel cell, the converter comprising:an input node for receiving DC supply power from the fuel cell;an output node for providing a first DC output voltage;a first inductor including a first winding having a first terminal and a second terminal, said first terminal coupled with said input node for receiving DC supply power from the fuel cell;a switch coupled between said second terminal of said first winding and ground;a control circuit for switching said switch between an open position and a closed position;a first capacitor coupled between said output node and ground;said switch and said control circuit operating in cooperation with said first winding and said first capacitor to provide the first DC output voltage at said output node, the first DC output voltage being greater than the received DC supply power;a first diode coupled between said second terminal of said first winding and said output node for preventing current from flowing from said first capacitor to said second terminal of said first winding; anda second winding disposed in a transformer relationship with said first winding for producing a second output voltage.