Battery protection circuit and electronic device
US6172482A · kind A · utility
40Cited by
1References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 23, 1999 |
| Grant date | Jan 9, 2001 |
| Priority date | — |
| Expiry date | Aug 23, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2085/466
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A secondary battery needs to be protected by an inexpensive structure having a small number of components. To this end, the structure includes a fuse 41 with a heater, connected to a positive electrode side of a battery cell 2, as a secondary battery, a driving FET 42 for driving the heater of the fuse 41 and a detection control IC 3 which, on detecting at least the over-charging state of the battery cell 2, drives the driving FET 42 to fuse the heater of the fuse 41.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.