Lighting device and lighting fixture using same
US9763294B2 · kind B2 · utility
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8Claims
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Assignee
Inventors
Key dates
| Filing date | Nov 18, 2015 |
| Grant date | Sep 12, 2017 |
| Priority date | — |
| Expiry date | Nov 18, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lighting device includes a rectifier circuit, a conversion circuit, a constant current circuit and a control circuit. The conversion circuit includes a first series circuit, a second series circuit and a third series circuit. The conversion circuit is configured to output a DC current by on/off of a switching element being controlled by the control circuit. A high potential-side terminal of the third capacitor is electrically connected to an output terminal. The low potential-side terminal of the third capacitor is electrically connected to an output terminal, via the constant current circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.