Patent · US Expired

Power supply system for flat panel display devices

US7291987B2 · kind B2 · utility

13Cited by
3References
15Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 17, 2005
Grant dateNov 6, 2007
Priority date
Expiry dateOct 3, 2025

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH05B41/2827
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A power supply system for powering backlight lamps in a flat panel display with reduced dimensions and increased power efficiency. The power supply system includes a converter circuit for converting an alternating current (AC) signal from an AC power source to a high direct current (DC) signal, and a high voltage (HV) inverter system that includes a power stage circuit, a transformer circuit, and a current balance circuit. The HV inverter system is coupled to the converter circuit and specifically configured to convert the high DC signal into an AC output signal to power the backlight lamps.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.