Method and circuit for short-circuit and over-current protection in a discharge lamp system
US7804254B2 · kind B2 · utility
4Cited by
62References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 19, 2006 |
| Grant date | Sep 28, 2010 |
| Priority date | — |
| Expiry date | Oct 28, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B41/2985
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The method and circuit of the present invention provides short-circuit detection and protection in a discharge lamp system. The transformer's primary current is sensed and used to provide short-circuit protection of the secondary winding side or high voltage side. The system and method with the present invention provides short-circuit detection and protection even when the transformer's secondary winding is shorted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.