System and method for analog voltage processing in wide range for cold-cathode fluorescent lamp
US7781984B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 2008 |
| Grant date | Aug 24, 2010 |
| Priority date | — |
| Expiry date | Sep 24, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B41/282
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
System and method for processing analog voltage for cold-cathode fluorescent lamp. The system includes a voltage-to-current converter configured to receive an input analog voltage signal and generate a first current signal, and a current processing component configured to receive the first current signal and a predetermined current and generate a second current signal. Additionally, the system includes a current-to-voltage converter configured to receive the second current signal and generate an output analog voltage signal, and a dimming controller configured to receive the output analog voltage signal and generate a control signal for driving at least a cold-cathode fluorescent lamp. The voltage-to-current converter, the current processing component, and the current-to-voltage converter are configured to be biased between a first power supply voltage level and a second power supply voltage level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.