Power control circuit for inductive loads
US4899088A · kind A · utility
12Cited by
1References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 1988 |
| Grant date | Feb 6, 1990 |
| Priority date | — |
| Expiry date | Aug 31, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S315/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit for use with the dimming control of a fluorescent light in which a "notch" is created and positioned to vary the power to the inductive ballast and the circuit including a pair of gate turn-off thyristors operable to supply a current path for stored energy in the inductive ballast only during the notch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.