Charge/discharge control circuit and battery apparatus
US10559968B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2018 |
| Grant date | Feb 11, 2020 |
| Priority date | — |
| Expiry date | Jun 6, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A charge/discharge control circuit includes a first power supply terminal connected to a first electrode of a secondary battery, and a discharge control output circuit which outputs a discharge control signal to a gate of a discharge control FET which controls discharging of the secondary battery. The discharge control output circuit includes a clamp voltage output circuit which outputs a clamp voltage lower than a voltage of the first power supply terminal to a discharge control terminal to turn on the discharge control FET when the voltage of the first power supply terminal is higher than a prescribed voltage, and a power supply voltage output circuit which outputs the voltage of the first power supply terminal to the discharge control terminal to turn on the discharge control FET when the voltage of the first power supply terminal is equal to or less than the prescribed voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.