Title :
Phase controlled piezoelectric-transformer backlight inverter with no magnetic device
Author :
Su, Wei-Chuan ; Lin, Po-Chen ; Chen, Chern-Lin
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei
Abstract :
This paper presents a CCFL backlight inverter which uses the quasimodal piezoelectric transformer. The control loop locks the phase difference between input voltage and output current of piezoelectric transformer directly. It can approach the maximum-gain frequency within a range of load resistance value with proper locking phase
Keywords :
fluorescent lamps; invertors; piezoelectric devices; transformers; CCFL backlight inverter; cold cathode fluorescent lamp; control loop; load resistance value; locking phase; magnetic device; phase controlled backlight inverter; piezoelectric-transformer backlight inverter; quasimodal piezoelectric transformer; Electromagnetic interference; Equivalent circuits; Filters; Frequency; Inductance; Inductors; Inverters; Magnetic devices; Transfer functions; Voltage;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2006. APEC '06. Twenty-First Annual IEEE
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-9547-6
DOI :
10.1109/APEC.2006.1620567
