Title :
Resonant Energy-Recovery Circuit With Asymmetric Voltage Excitation and No Circulating Current for Plasma Display Panel
Author_Institution :
Sch. of Electr. & Electron. Eng., Chung-ang Univ., Seoul, South Korea
Abstract :
A sustain driver with a resonant energy recovery circuit is proposed based on asymmetric voltage excitation for a complete resonant commutation of panel capacitor in plasma display panels (PDPs). The developed driver configures the sustain circuit and the resonant circuit in such a way that the resonant network is energized by higher voltage level and lower level than half sustain voltage in charging and discharging the panel capacitor, respectively. This proposed operation can guarantee perfect commutation of the panel capacitor voltage, zero-voltage switching of the sustain switches, and reduced electromagnetic interference due to no surge current. Furthermore, the developed sustain circuit is designed to eliminate the conduction losses and the current stresses on the circuit and the switching devices caused by the reverse recovery operation of the diodes. The energy trapped in the resonant inductors due to the inevitable diode reverse-recovery phenomena, which generates additional conduction losses and thermal problem with circulating currents, is recovered in the proposed circuit.
Keywords :
driver circuits; interference suppression; plasma diodes; plasma displays; PDP; asymmetric voltage excitation; circulating current; conduction losses; inevitable diode reverse-recovery phenomena; panel capacitor resonant commutation; panel capacitor voltage; plasma display panel; reduced electromagnetic interference; resonant energy recovery circuit; resonant energy-recovery circuit; switching devices; thermal problem; zero-voltage switching; Capacitors; Electrodes; Inductors; Partial discharges; RLC circuits; Resistance; Switches; Asymmetric voltage transition; plasma display panel (PDP); resonant circuit; sustain driver;
Journal_Title :
Display Technology, Journal of
DOI :
10.1109/JDT.2012.2203331