Title :
Piezoelectric 10W DC/DC converter for space applications
Author :
Yuan-Ping Liu ; Vasic, Dejan ; Costa, Francois ; Schwander, Denis
Author_Institution :
Lab. SATIE, UNIVERSud, Cachan, France
fDate :
Aug. 30 2011-Sept. 1 2011
Abstract :
This paper implemented a 10W DC/DC converter based on the piezoelectric transformer (PT) for the space application. The PT operating frequency is fixed at zero voltage switching (ZVS) conditions in order to obtain the good efficiency. The input driving circuit of the PT was adopted the half-bridge circuit with a filtering inductor. The full-wave rectifier was adopted to obtain the DC load voltage. To fix the switching frequency and the duty cycle simultaneously, the hysteresis control and the burst mode operation were used. The results show the difficulty of this hysteresis control in the burst-mode operation is the accuracy of the load voltage.
Keywords :
DC-DC power convertors; avionics; driver circuits; piezoelectric devices; zero voltage switching; DC load voltage; burst mode operation; driving circuit; duty cycle; filtering inductor; full-wave rectifier; half-bridge circuit; hysteresis control; operating frequency; piezoelectric DC/DC converter; piezoelectric transformer; power 10 W; space applications; switching frequency; zero voltage switching conditions; Capacitance; DC-DC power converters; Inductors; Power transformer insulation; Switching frequency; Temperature measurement; Zero voltage switching; DC power supply; Piezo actuators; Transformer; ZVS converters;
Conference_Titel :
Power Electronics and Applications (EPE 2011), Proceedings of the 2011-14th European Conference on
Conference_Location :
Birmingham
Print_ISBN :
978-1-61284-167-0
Electronic_ISBN :
978-90-75815-15-3
