Intentional cross conduction of converter circuit to ignite high ignition voltage loads
US6021055A · kind A · utility
34Cited by
10References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 24, 1998 |
| Grant date | Feb 1, 2000 |
| Priority date | — |
| Expiry date | Sep 24, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit for igniting and driving a high ignition voltage load includes first and second series coupled switches arranged in a half bridge circuit having an output node. A step-up transformer has a primary winding that is coupled to the bridge circuit at the output node. A load is coupled to the secondary winding to a return potential. Both the first and second switches are capable of being turned on concurrently for a predetermined interval to supply an ignition voltage across the secondary winding sufficient to ignite the lamp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.