Power supply system having two different types of batteries and current-limiting circuit for lower output battery
US4056764A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 1975 |
| Grant date | Nov 1, 1977 |
| Priority date | — |
| Expiry date | May 30, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S320/34
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system constituted at a relatively large capacity and low output first battery such as a fuel cell, a smaller capacity and higher output second battery, and a current-limiting circuit for restricting the maximum discharge current of the first battery to a predetermined value slightly above the open-circuit voltage of the second battery, which circuit consists of a measuring circuit for measuring the discharge current, a signal generating circuit for providing a reference signal representing the predetermined current, a comparator for the comparison between the reference signal and the measured current and a current flow control circuit operated by the output of the comparator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.