Lighting device which receives power from an external power supply
US12144075B2 · kind B2 · utility
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15Claims
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Assignee
Inventors
Key dates
| Filing date | Mar 29, 2021 |
| Grant date | Nov 12, 2024 |
| Priority date | — |
| Expiry date | Jun 18, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B45/37
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting device connects to an external power supply and includes a light emitting load and a secondary load. A temperature measurement is obtained related to a temperature of the external power supply. The secondary load is activated, thereby allowing the secondary load to be powered by the external power supply, when the temperature measurement is below a threshold. Thus, in cold conditions, an increased load is presented to the external power supply to assist start up of the external power supply in cold conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.