Charge-pump control circuit and battery control circuit
US11557963B2 · kind B2 · utility
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4Claims
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Key dates
| Filing date | Jun 10, 2020 |
| Grant date | Jan 17, 2023 |
| Priority date | — |
| Expiry date | Jan 22, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A charge-pump control circuit includes an oscillator which supplies a clock for driving a charge pump driver to supply a first gate voltage to a discharging transistor in order to control discharge from a battery, and driving a charge pump driver to supply a second gate voltage to a charging transistor in order to control charge to the battery, respectively; and a drive control circuit which sets a control target voltage as one of the first gate voltage and the second gate voltage having a lower voltage in order to control generation of the clock by the oscillator according to the control target voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.