Solid state lighting apparatus with controllable bypass circuits and methods of operation thereof
US9713211B2 · kind B2 · utility
44Cited by
180References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2009 |
| Grant date | Jul 18, 2017 |
| Priority date | — |
| Expiry date | May 3, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting apparatus includes a string with a plurality of serially-connected light emitting device sets, each set comprising at least one light emitting device. The apparatus further includes at least one controllable bypass circuit configured to variably bypass current around at least one light emitting device of a set of the plurality of light emitting device sets responsive to a control input. The control input may include, for example, a temperature input, a string current sense input and/or an adjustment input. The control input may be varied, for example, to adjust a color point of the string.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.