Buck-boost converter with improved efficiency operation
US8860387B2 · kind B2 · utility
43Cited by
5References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 22, 2010 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | May 13, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/1582
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Systems and methods for providing a buck-boost converter with an improved efficiency are disclosed. The buck-boost converter disclosed operates in 5 different modes, namely in buck mode, half frequency buck mode, half frequency buck-boost mode, half frequency boost mode, and in boost mode. In half frequency buck mode, buck-boost mode, and in half frequency boost mode the switching frequency is halved compared to the switching frequency of buck or boost mode. A simple circuit implementation by adding two offset voltages in ramp signals or PWM comparators enables to halve the switching frequency if required.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.