Adaptive minimum duty cycle design to extend operational voltage range for DCDC converters
US12003178B2 · kind B2 · utility
0Cited by
6References
17Claims
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Key dates
| Filing date | Nov 12, 2021 |
| Grant date | Jun 4, 2024 |
| Priority date | — |
| Expiry date | Nov 26, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for a switched mode power supply (SMPS) includes providing an error voltage signal based on a difference between a sampled output voltage of the SMPS and a target voltage, and generating a clock signal characterized by an oscillating frequency; generating a switching control signal based on the error voltage signal and the clock signal using pulse-width modulation (PWM). The method further includes varying the oscillating frequency of the clock signal according to the error voltage signal in a current generating circuit, and applying the switching control signal to control the power switches of the SMPS.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.