Driver circuit for driving a plurality of DC lamp strings
US7122971B2 · kind B2 · utility
26Cited by
1References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2004 |
| Grant date | Oct 17, 2006 |
| Priority date | — |
| Expiry date | Nov 1, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/38
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A driver circuit for a DC light source supplies a voltage generated by a DC-to-DC converter for a plurality of lamp strings connected in parallel and a plurality of driving currents generated by a current mirror for the lamp strings, such that the lamp strings may have well controlled or uniform brightness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.