Switching voltage regulators with phase-lock loops and lock range extension
US11018583B2 · kind B2 · utility
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9References
18Claims
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Key dates
| Filing date | Oct 24, 2019 |
| Grant date | May 25, 2021 |
| Priority date | — |
| Expiry date | Oct 24, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03L7/085
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Adaptive on-time switching voltage regulator circuits and methods therefor provided. In some embodiments, a voltage regulator comprises: a switching circuit configured to generate a switching signal at a switching node according to a pulse-width modulated (PWM) signal; a phase-lock loop (PLL) configured to lock the PWM signal to a clock reference signal, the PLL comprising: a PWM signal generator configured to generate the PWM signal according to an error signal, and a phase detector configured to generate the error signal based on the PWM signal and the clock reference signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.