Dimming control circuit, driving device and control method thereof
US11310878B2 · kind B2 · utility
0Cited by
4References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2021 |
| Grant date | Apr 19, 2022 |
| Priority date | — |
| Expiry date | Jan 22, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A dimming control circuit, driving device and control method thereof, the dimming control circuit comprising a dimmer, a driving device coupled to the dimmer and controlling a load on the basis of a dimming level reference of the dimmer, and a bleeder supplying power to the dimmer, the driving device including a power switch coupled to the load, wherein a duty ratio of a driving voltage on the power switch is adjusted in accordance with the dimming level reference to control an operating current of the load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.