Charge control circuit
US4409538A · kind A · utility
24Cited by
6References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 17, 1981 |
| Grant date | Oct 11, 1983 |
| Priority date | — |
| Expiry date | Jul 17, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/35
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A charge control circuit has an excess charge detecting circuit for preventing the excess charge of a secondary battery responsive to the voltage of the secondary battery, and a switching circuit responsive to the output of the excess charge detecting circuit. The switching circuit and the excess charge detecting circuit are operated by the electromotive force of a solar cell without the power dissipation of the secondary battery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.