PDP를 위한 새로운 전류원 타입의 에너지 회수 및 방전유지 회로

Abstract

A novel current-fed energy-recovery sustaining driver (CFERSO) for a POP is proposed m this paper Its main idea is to recover the energy stored in the POP or to inject the input source energy to the POP by using the current source built-up in the energy recovery inductor. This method provides zero-voltage-switching (ZVS) of all main power switches, the reduction of EMI, and more improved operational voltage margins with the aid of the discharge current compensation In addition, since the current flowing through the energy recovery inductor can compensate the plasma discharge current flowing through the conducting power switches, the current stress through all main power switches can be considerably reduced. Furthermore, It features a low conduction loss and fast transient time. Operations, features and design considerations are presented and verified experimentally on a I020XI06mm sized POP, 50kHz-switching frequency, and sustaining voltage 140V based prototype.