Charge pump DC/DC converter circuit
US7224591B2 · kind B2 · utility
57Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2006 |
| Grant date | May 29, 2007 |
| Priority date | — |
| Expiry date | Feb 24, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/07
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A charge pump DC/DC converter circuit of the present invention includes: a monitor circuit that detects a potential difference between terminals of a semiconductor switch that turns on during a first period, so as to output a determining signal corresponding to the potential difference; and each of drive circuits that outputs a drive signal to a semiconductor switch that turns on during a first period, in response to the determining signal. The drive signal increases the on-resistance of the semiconductor switch in proportion to the detected potential difference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.