Driving circuit for powering light sources
US7919936B2 · kind B2 · utility
30Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 5, 2008 |
| Grant date | Apr 5, 2011 |
| Priority date | — |
| Expiry date | Oct 10, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/347
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
There is provided a driving circuit for powering a plurality of light sources. The driving circuit includes a power converter, a plurality of switching regulators and a plurality of switching balance controllers. The power converter is operable for receiving an input voltage and for providing a regulated voltage to the light sources. The switching regulators are operable for adjusting forward voltages of the light sources respectively. The switching balance controllers are operable for generating pulse modulation signals to control the switching regulators respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.