Ballast converter with power factor and current crest factor correction
US6642670B2 · kind B2 · utility
7Cited by
5References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2002 |
| Grant date | Nov 4, 2003 |
| Priority date | — |
| Expiry date | Feb 22, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S315/07
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A ballast converter with a power factor and crest factor correction to be connected to an input source for providing an input voltage. The ballast converter includes a rectifier, a power converter, and a valley fill circuit, wherein the power converter recharges the valley fill circuit for energy storage storing energy while the value of the first voltage is larger than a predetermined value, the valley fill circuit provides the first voltage with a supplementary energy while the value of the first voltage is lower than the predetermined value, and the predetermined value is adjustable by the valley fill converter circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.