Charge/discharge control circuit and battery assembly
US8896268B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2012 |
| Grant date | Nov 25, 2014 |
| Priority date | — |
| Expiry date | Jan 27, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/00304
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
There is provided a charge/discharge control circuit and a battery assembly including an accurate overcurrent protecting circuit with low consumption current characteristics. The charge/discharge control circuit comprises a current protecting circuit including: a reference voltage circuit having a reference transistor for detecting overcurrent flowing through a control transistor to turn it on, and a constant current circuit; and a comparison circuit for comparing voltage on the reference voltage circuit with voltage generated by overcurrent flowing through the control transistor, wherein when no overcurrent flows, the electric current flowing through the reference voltage circuit is interrupted to reduce power consumption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.