Power supply unit for discharge lamps
US5311102A · kind A · utility
4Cited by
2References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 12, 1992 |
| Grant date | May 10, 1994 |
| Priority date | — |
| Expiry date | May 12, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S315/05
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a power supply unit for discharge lamps, comprising a rectifier (3); an oscillator output portion (5); an inductor (1); capacitor (2, 4, 7, 8). And further comprising a sampling resistor (9) and a module (10). It is used to reduce the capacitive impedance at the input end of the circuit, minimizing the components of high-order harmonics produced in the circuit, weakening the high-order harmonics of source current to the degree that they no longer impact the power network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.