Solid state lighting, driver circuits, and related software
US8432108B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2009 |
| Grant date | Apr 30, 2013 |
| Priority date | — |
| Expiry date | Aug 1, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B70/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
LED lighting fixtures, or luminaires, related components, driver circuit, methods, and software/firmware are described that can provide for among other things, ambient environment sensing, thermal self-monitoring, sensor-based power management, communications, and/or programmability. Driver and lighting circuits configured for electrical loads such as series arrangements of light emitting diodes are also described. Embodiments of PFC stages and driver stages can be combined for use as a power supply, and may be configured on a common circuit board. Power factor correction and driver circuits can be combined with one or more lighting elements as a lighting apparatus. Methods of hysteretic power factor correction start-up are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.