DC power supply using fuel cell
US6920948B2 · kind B2 · utility
22Cited by
14References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 3, 2001 |
| Grant date | Jul 26, 2005 |
| Priority date | — |
| Expiry date | Jun 21, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power supply system includes a fuel cell and a battery connected in parallel. A DC-DC converter is connected to the battery. A maximum output ratio of the fuel cell and the battery is set to be in a range where the output of the fuel cell is within 65 to 80% of the total output. Accordingly, electric power loss owing to conversion performed by the DC-DC converter is reduced to achieve a high energy efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.