Control circuit for switching loss reduction and smooth mode transition of a high efficiency buck-boost power converter
US8692533B2 · kind B2 · utility
2Cited by
5References
12Claims
0Family size
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Key dates
| Filing date | Aug 22, 2012 |
| Grant date | Apr 8, 2014 |
| Priority date | — |
| Expiry date | Aug 22, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/1582
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A buck-boost power converter switches the switches thereof with a novel sequence and extends the switching periods of the switches to reduce the switching loss and conduction loss when the input voltage thereof approaches the output voltage thereof. The influence of the load current of the power converter on the duty thereof is taken into account to switch the power converter between modes at correct time points, so as to prevent the output voltage from being affected by the mode switching.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.