Driving an EL panel without DC bias
US7009346B2 · kind B2 · utility
0Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 19, 2004 |
| Grant date | Mar 7, 2006 |
| Priority date | — |
| Expiry date | Jun 25, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An inverter is coupled to an EL lamp by a high pass filter including a series capacitor and a shunt resistor. The resistor is coupled in parallel with the EL lamp. The high pass filter has a time constant greater than 0.005 seconds and the capacitor has a capacitance at least ten times the capacitance of the EL lamp.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.