Ignition scheme for electronic HID ballast
US6504313B1 · kind B1 · utility
3Cited by
5References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 13, 2000 |
| Grant date | Jan 7, 2003 |
| Priority date | — |
| Expiry date | Nov 7, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An improved ignition circuit for a high intensity discharge (HID) lamp is disclosed. The ignition voltage is provided across a single capacitor, and at the end of the ignition phase, a second capacitor is switched into the circuit to divide the voltage across two capacitors, and provide a steady state square wave current and voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.