Battery charger with high sensitivity
US5453677A · kind A · utility
4Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 7, 1995 |
| Grant date | Sep 26, 1995 |
| Priority date | — |
| Expiry date | Apr 7, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/007184
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A battery charger includes a battery voltage detecting circuit for detecting a voltage of a battery during a charging operation. The battery voltage detecting circuit includes a pair of a first and a second voltage-dividing resistor. A transistor is interposed between the first and second voltage-dividing resistors. A predetermined voltage is applied to the base of the transistor, so that the battery voltage is detected based on the voltage divided by the first and second voltage-dividing resistors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.