Positive and negative charge pump control
US11424676B2 · kind B2 · utility
2Cited by
10References
12Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jan 8, 2021 |
| Grant date | Aug 23, 2022 |
| Priority date | — |
| Expiry date | Jan 8, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/071
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A voltage supply circuit and a method for controlling a voltage supply circuit are provided. The voltage supply circuit includes a positive charge pump stage that generates a positive voltage and a negative charge pump stage that generates a negative voltage. The voltage supply circuit also includes a control stage that compares a voltage representative of the negative voltage with a reference voltage and causes a slope of the positive voltage to decrease when the voltage representative of the negative voltage exceeds the reference voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.