Regulated battery charger
US4897591A · kind A · utility
13Cited by
5References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 6, 1987 |
| Grant date | Jan 30, 1990 |
| Priority date | — |
| Expiry date | May 6, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/00711
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention is an electrical circuit for regulating the average current through and the voltage across a load, such as a rechargeable battery. The circuit includes at least one semiconductor switching device connected in series with the load for controlling the current through the load. A current control loop is provided in the circuit to maintain the average current through the load at a constant level despite changes in the resistance of the load. Also provided is a voltage control loop which acts to limit the voltage across the load to a value below a predetermined voltage level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.