DC/DC converter for a fuel cell providing both a primary and auxiliary output voltage
US6177736A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 12, 1999 |
| Grant date | Jan 23, 2001 |
| Priority date | — |
| Expiry date | Nov 12, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M1/009
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A DC/DC converter for a fuel cell includes an input node for receiving DC supply power from the fuel cell and an output node for providing a first DC output voltage. A first inductor includes a first winding having a first terminal and a second terminal, with the first terminal coupled with the input node for receiving DC supply power from the fuel cell. A switch is coupled between the second terminal of the first winding and ground. A control circuit switches the switch between an open position and a closed position. A first capacitor is coupled between the output node and ground. A first diode is coupled between the second terminal of the first winding and the output node for preventing current from flowing from the first capacitor to the second terminal of the first winding. A second winding is disposed in a transformer relationship with the first winding for producing a second output voltage. An AC/DC circuit rectifies AC voltage from the second winding and provides a constant second DC output voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.