Solid state luminaire with field-configurable CCT and/or luminosity
US10660174B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2018 |
| Grant date | May 19, 2020 |
| Priority date | — |
| Expiry date | Oct 16, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A single solid state luminaire product is field-configurable to a plurality of discrete coordinated color temperature (CCT) and maximum luminosity settings. A field-actuated control circuit controls a current ratio control circuit, which directs drive current from a power supply to selected ones, or in selected ratios to multiple ones, of heterogeneous LED strings. The control circuit may also control the power supply, to select an overall maximum level of drive current, which determines the maximum luminosity of the luminaire. In one embodiment, inputs to the field-actuated control circuit are input from exterior to the luminaire product packaging. Embodiments allow a distributor to order and stock a large inventory of substantially identical luminaires from the manufacturer, yet still offer customers a variety of different CCT and maximum luminosity products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.