Title :
Steady-state characteristics of the push-pull piezoelectric inverter
Author :
Shoyama, Masahito ; Horikoshi, Kuniyasu ; Ninomiya, Tamotsu ; Zaitsu, Toshiyuki ; Sasaki, Yasuhiro
Author_Institution :
Dept. of Electr. & Electron. Syst. Eng., Kyushu Univ., Fukuoka, Japan
Abstract :
Steady-state characteristics of the push-pull inverter with a piezoelectric transformer are analyzed. The piezoelectric transformer operating in the 3rd-order longitudinal vibration mode is used in place of a conventional magnetic transformer to produce a high output voltage to light up a cold cathode fluorescent lamp. The circuit operation, the load characteristics, the efficiency and the ZVS conditions are analyzed using equivalent circuits, analytical results are confirmed by experiments. An example of the output current control is also shown
Keywords :
cold-cathode tubes; electric current control; fluorescent lamps; invertors; piezoelectric devices; transformers; 3rd-order longitudinal vibration mode; cold cathode fluorescent lamp; conventional magnetic transformer; equivalent circuits; high output voltage; output current control; piezoelectric transformer; push-pull piezoelectric inverter; steady-state characteristics; Cathodes; Electrodes; Equivalent circuits; Inverters; Magnetic analysis; National electric code; Polarization; Steady-state; Stress; Vibrations;
Conference_Titel :
Power Electronics Specialists Conference, 1997. PESC '97 Record., 28th Annual IEEE
Conference_Location :
St. Louis, MO
Print_ISBN :
0-7803-3840-5
DOI :
10.1109/PESC.1997.616799
