Modular high frequency ballast architecture
US6320329A · kind A · utility
51Cited by
21References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 30, 1999 |
| Grant date | Nov 20, 2001 |
| Priority date | — |
| Expiry date | Jul 30, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B41/392
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A modular high frequency ballast for two or more lamps. The modules are driven in an interleaved or non-interleaved switching manner. Independent lamp operation is provided for fixed and dimming circuits. A reduction in the size and cost of the preconditioner stage is achieved through the interleaved switching operation. The modules can be standardized for operating a broad range of lamps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.