Energy saving fluorescent lamp circuit
US4388564A · kind A · utility
2Cited by
9References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 9, 1981 |
| Grant date | Jun 14, 1983 |
| Priority date | — |
| Expiry date | Mar 9, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S315/05
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fluorescent lamp ballast circuit comprising conductors for connection to an electrical power source, and an impedance such as a capacitor connected between one of the conductors and the power source. A positive temperature coefficient resistor may be provided in parallel with the aforesaid impedance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.