High pressure discharge lamp with incorporated starter
US4567403A · kind A · utility
1Cited by
11References
10Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Feb 18, 1982 |
| Grant date | Jan 28, 1986 |
| Priority date | — |
| Expiry date | Feb 18, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B41/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a high pressure discharge lamp device provided with an inductive stabilizer and a starting circuit consisting of a serial circuit of a resistor and a bimetal switch, a pulse waveform conversion circuit is arranged therein to reduce the pulse peak of the starting voltage and also broaden the pulse width of the starting voltage. The pulse waveform conversion circuit comprises a serial circuit of a resistor and a switching element, such as micro-gap element, which operates at a voltage lower than the starting voltage of the discharge lamp but higher than the secondary load-free voltage of the stabilizer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.