Advanced constant off-time control for four-switch buck-boost converter
US11682973B2 · kind B2 · utility
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3References
20Claims
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Key dates
| Filing date | Jul 16, 2021 |
| Grant date | Jun 20, 2023 |
| Priority date | — |
| Expiry date | Jul 16, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/157
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus includes a first timer configured to determine a turn-off time of a first high-side switch of a buck-boost converter, and a second timer configured to determine a turn-off time of a second low-side switch of the buck-boost converter based on a comparison between a first signal and a second signal, the first signal being proportional to an input voltage of the buck-boost converter, and the second signal being generated based on a signal proportional to an output voltage of the buck-boost converter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.