Power supply system
US8829803B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Jun 21, 2012 |
| Grant date | Sep 9, 2014 |
| Priority date | — |
| Expiry date | Sep 17, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B47/185
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power supply system includes an illumination circuit for receiving an AC voltage and a control circuit for receiving a DC voltage. The illumination circuit includes a first switch unit and at least one light emitting unit. The control circuit includes a first winding unit, a second switch unit, and a second winding unit. The second winding unit provides the DC voltage to the first winding unit by the second switch unit. The first winding unit provides the AC voltage to the light emitting unit by the first switch unit. The light emitting unit emits light when receives the AC voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.