Operating circuit with an improved power supply for a driver circuit
US6831422B2 · kind B2 · utility
1Cited by
4References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 2, 2003 |
| Grant date | Dec 14, 2004 |
| Priority date | — |
| Expiry date | Sep 2, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S315/07
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to the supply of power to a driver circuit (V) for a switching transistor (T) in an operating circuit, in particular for lamps. The supply is provided via a pump circuit with a potential isolation capacitor (C2), two rectifier diodes (D1, D2) and an energy-storage capacitor (C1), and is independent of the reference ground potential of the switching transistor (T).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.