Title :
Design of the fixed frequency controlled piezoelectric transformer based DC/DC converter
Author :
Liu, Yuan-Ping ; Vasic, Dejan ; Costa, François ; Wu, Wen-Jong ; Lee, Chih-Kung
Author_Institution :
Syst. et Applic. des Technol. de l´´Inf. et de l´´Energie, Ecole Normale Super. de Cachan, Cachan, France
Abstract :
Piezoelectric transformers (PTs) converters show some difficulties to work in the case of the variable load at fixed frequency. PTs can be designed to achieve these problems, but the size of the PT may become larger. In fact, the selection of the circuit topologies and the control methods influence the size and the efficiency of the PT converter. Two rectifiers (half-wave rectifier and the full-wave rectifier) were compared and two control methods (PWM control and burst mode control) were compared according to the efficiency of the converter. The full-wave rectifier and the burst-mode hysteresis control are the better choice. The hysteresis control was also proposed to improve the dynamic response of the burst-mode control.
Keywords :
DC-DC power convertors; network topology; piezoelectric devices; power transformers; rectifiers; DC/DC converter; PWM control; burst-mode hysteresis control; circuit topology; full-wave rectifier; half-wave rectifier; piezoelectric transformers; Circuit topology; DC-DC power converters; Equivalent circuits; Frequency conversion; Hysteresis; Pi control; Proportional control; Rectifiers; Vibrations; Voltage; converter circuit; converter control; efficiency;
Conference_Titel :
Power Electronics and Applications, 2009. EPE '09. 13th European Conference on
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-4432-8
Electronic_ISBN :
978-90-75815-13-9
