NDLI: Open-circuit test of a piezoelectric transformer and its applications

Content Provider	IEEE Xplore Digital Library
Author	Kuo-Tsai Chang
Copyright Year	2004
Description	Author affiliation: Dept. of Electr. Eng., Nat. United Univ., Miaoli, Taiwan (Kuo-Tsai Chang)
Abstract	This paper investigates the characteristics of a voltage transient response, including time constants, response times, peak voltages and oscillation frequency, for a piezoelectric transformer (PT) under open-circuit operation and their applications. This transient response is induced immediately after an AC voltage applied to the PT is switched off. The time constants can be employed to determine the quality factor and equivalent circuit constants concerning the losses consumed in the PT. Then, an equivalent circuit model of the PT with the initial conditions is used to derive a constituent function of the transient response, involving both DC and AC parts. Moreover, a driving system, including a resonant inverter and a control switch, is constructed to determine the actual transient responses and their characteristics. Furthermore, the effects of both switching-off time of the AC voltage and loading resistance on the characteristics of the transient response are measured and discussed.
Starting Page	2424
Ending Page	2429
File Size	1340066
Page Count	6
File Format	PDF
ISBN	0780387309
DOI	10.1109/IECON.2004.1432180
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-11-02
Publisher Place	South Korea
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Testing Transient response Equivalent circuits Switches Time factors Delay Frequency Q factor Resonant inverters Control systems
Content Type	Text
Resource Type	Article

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