Circuits for operating electric discharge lamps
US4210850A · kind A · utility
11Cited by
4References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 15, 1978 |
| Grant date | Jul 1, 1980 |
| Priority date | — |
| Expiry date | Jun 15, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S315/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit for operating an electric discharge lamp from an a.c. supply wherein a burst of high voltage pulses for starting the lamp is generated during each cycle or half cycle of the supply by rapidly turning on and off an electronic switch, e.g. a triac, connected between a tapping point on a ballast inductance and an input terminal of the circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.