Buck boost function based on a capacitor bootstrap input buck converter
US8000117B2 · kind B2 · utility
163Cited by
3References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 9, 2009 |
| Grant date | Aug 16, 2011 |
| Priority date | — |
| Expiry date | Jun 26, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/07
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A buck boost voltage converter circuit has a capacitor pump circuit for boosting an input voltage in a first mode of operation when an input voltage is below a desired voltage level. A buck converter circuit provides the output voltage responsive to the boosted input voltage from the capacitor pump circuit in the first mode of operation and provides the output voltage responsive to the input voltage in a second mode of operation when the input voltage is above the desired voltage level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.