Method and apparatus for digital, closed-loop control of CrCM switch-mode power converters
US12057776B2 · kind B2 · utility
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8References
16Claims
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Key dates
| Filing date | Aug 11, 2023 |
| Grant date | Aug 6, 2024 |
| Priority date | — |
| Expiry date | Aug 11, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of setting a synchronous rectifier on-time value includes determining that a time interval has occurred, receiving a number of triangular current mode (TCM) pulses measured during the time interval, and determining a pulse comparison value equal to a number of switching period pulses during the time interval minus the number of TCM pulses during the time interval. The method also includes increasing the synchronous rectifier on-time if the pulse comparison value is greater than or equal to a threshold and decreasing the synchronous rectifier on-time if the pulse comparison value is less than the threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.