DC power source with fuel cell and electric power storage device
US7583050B2 · kind B2 · utility
16Cited by
4References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 2, 2001 |
| Grant date | Sep 1, 2009 |
| Priority date | — |
| Expiry date | Apr 13, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power source system (1) includes a fuel cell (40) and a battery (20) connected in parallel. A DC-DC converter (30) is connected to the battery (20) side. A maximum output ratio of the fuel cell (40) and the battery (20) is set in a range in which the output of the fuel cell falls within 65 to 80% of the total output. Accordingly, electric power loss due to the DC-DC converter (30) is controlled, whereby a high energy efficiency can be achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.