Capacitor charge sharing charge pump
US6717459B2 · kind B2 · utility
21Cited by
11References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 21, 2002 |
| Grant date | Apr 6, 2004 |
| Priority date | — |
| Expiry date | Feb 21, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/077
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A multiphase charge pump including first and second phase charge pump circuits. Each of the first and second phase charge pump circuits includes a bootstrap capacitor. The bootstrap capacitors are switchingly connected by an equalization circuit that periodically transfers charge from a discharging capacitor to a charging capacitor, thereby reducing the charge that must be externally supplied to charge the charging capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.