Lighting device power control circuit systems and methods
US11448371B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2019 |
| Grant date | Sep 20, 2022 |
| Priority date | — |
| Expiry date | Oct 20, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B47/25
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting device power control circuit configured to charge one or more capacitors through the pulsing of an inductor is provided. In one example, a lighting device includes a light source and a power control circuit. The power control circuit comprises an inductor, a power transistor configured to pass an operating current associated with the light source, and one or more capacitors configured to keep the power transistor turned on to pass the operating current. The one or more capacitors are configured to be periodically charged in response to a voltage spike generated across the inductor. Related methods and additional embodiments are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.