Driving voltage provider
US10917010B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 11, 2019 |
| Grant date | Feb 9, 2021 |
| Priority date | — |
| Expiry date | Jun 11, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02M3/1566
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A driving voltage provider includes: a PLL circuit for generating clock signals with different phases according to a divider value; a DC-DC converter for generating a PWM signal according to the frequency of a first clock signal, and providing a driving voltage based on the duty ratio of the PWM signal; a first tuning circuit for outputting a first tuning signal having a first logic level when the logic levels of first and second sampling signals obtained by sampling the PWM signal at transition times of different clock signals are different, and outputting the first tuning signal having a second logic level when the first and second sampling signals have the same logic level; and a divider value determiner for decreasing the divider value when the logic level of the first tuning signal is the first logic level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.