Drive circuit, drive method and integrated circuit thereof
US11139735B2 · kind B2 · utility
1Cited by
9References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 6, 2020 |
| Grant date | Oct 5, 2021 |
| Priority date | — |
| Expiry date | Aug 6, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/077
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A drive circuit for a switch capacitor converter having first, second, third, and fourth power switches connected in series, can include: first, second, third, and fourth drivers configured to respectively drive the first, second, third power, and fourth power switches according to control signals; a bootstrap power supply circuit comprising a bootstrap capacitor configured to supply power to the first, second, and third drivers in a time-sharing manner; and a power supply configured to supply power to the fourth driver and charge the bootstrap capacitor, where the fourth power switch is grounded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.