Title :
Narrow- control-bandwidth Operation of Piezoelectric-transformer Converter
Author :
Zhang, Weiping ; Zhang, Xiaoqiang ; Lei, Yuzhou ; Liu, Yuanchao
Author_Institution :
North China Univ. of Tech., Beijing
Abstract :
According to the operating and efficiency properties of piezoelectric-transformer, an input matching network (abbrev. IMN) attached to it is proposed in this paper. The main contributions are as follows: (1) The operating principles of piezoelectric-transformer are analyzed and its IMN is put forward. This enable piezoelectric-transformer converter operating area close to the resonant frequency as well as the control bandwidth narrow enough to improve the efficiency. (2)Analyses the electric property of IMN, and draw a conclusion, in agreement with analyze. (3)The simulation is achieved by PSPICE, and the results show that operating bandwidth of the entire resonant network, including IMN and PT, are much narrower than that without IMN but only piezoelectric-transformer.
Keywords :
piezoelectric devices; power convertors; transformers; input matching network; narrow-control-bandwidth operation; piezoelectric-transformer converter; resonant frequency; resonant network; Bandwidth; Circuit topology; Electromagnetic interference; Equivalent circuits; Filters; Magnetic separation; Resonance; Resonant frequency; SPICE; Voltage; Input matching networks; narrow-control-bandwidth; piezoelectric-transformer converter;
Conference_Titel :
Power Electronics and Drive Systems, 2007. PEDS '07. 7th International Conference on
Conference_Location :
Bangkok
Print_ISBN :
978-1-4244-0645-6
Electronic_ISBN :
978-1-4244-0645-6
DOI :
10.1109/PEDS.2007.4487928
