Systems and methods of driving multiple outputs
US9210748B2 · kind B2 · utility
4Cited by
1References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2013 |
| Grant date | Dec 8, 2015 |
| Priority date | — |
| Expiry date | Jan 7, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/38
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Systems and methods of driving multiple outputs are provided in which a single inductor may be used to drive multiple output such as independent strings of LEDs or white LEDs (WLEDs). In an example embodiment, a boost DC to DC converter may be used with a single inductor to drive multiple outputs. In an example embodiment, the error voltage of each of the multiple outputs is sampled during each cycle of the DC to DC converter and the largest error voltage is determined for that cycle. Power from the DC to DC converter is then supplied to that output during that cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.