Automatic battery charger
US4207513A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 10, 1978 |
| Grant date | Jun 10, 1980 |
| Priority date | — |
| Expiry date | Feb 10, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S320/15
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A battery charger is provided for industrial storage batteries which includes both digital and analog control circuits for controlling the charging voltage to maintain a charging cycle in which the current is initially held to a maximum value until the cell voltage rises to a preset level, after which the cell voltage is maintained constant at this level until a preset minimum current is reached, and the minimum current is then maintained for a fixed period of time. The charger requires no adjustments for ampere-hour rating or for number of cells in the battery, and is capable of charging batteries of any ampere-hour rating over a wide range, without any adjustment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.