Electroluminescent lamp driving circuit and method
US7247997B2 · kind B2 · utility
0Cited by
1References
12Claims
0Family size
Inventors
Key dates
| Filing date | Apr 26, 2005 |
| Grant date | Jul 24, 2007 |
| Priority date | — |
| Expiry date | Jul 11, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A driving circuit for driving an electroluminescent lamp is disclosed. The driving circuit includes an alternating current (AC) voltage generator for providing at an output an AC output voltage waveform for driving an electroluminescent lamp and a controller for controlling the phase and polarity of the AC output voltage waveform. The controller is operable to reverse the phase and polarity of the AC output voltage. In one embodiment, the AC voltage generator includes a transformer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.