DC/DC converter circuit and controller thereof
US7995364B2 · kind B2 · utility
23Cited by
3References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 31, 2008 |
| Grant date | Aug 9, 2011 |
| Priority date | — |
| Expiry date | Sep 9, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/07
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention uses a multi-phase oscillator or a mono-stable circuit in order to charge the output instantly or within an acceptable time period when a charge pump circuit is in a PFM mode and an output voltage is below a preset voltage level. Therefore, the present invention avoids the problem of charging the output in an unacceptable time delay thereby achieving the advantage of reducing the voltage ripple at the output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.