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Vol. 74, Issue 12, December 2006, pp. 855-863




Characterization Technique of an Excited Solid-State Piezoelectric Transformer as a Function of Transient Time


Selemani Seif

Department of Physics, Alabama A & M University

P.O. Box 1268, Normal, AL35762, U.S.A.

Phone: 256 880 8533, fax: 256 732 5622

E-mail: seifselemani@aol.com


Received: 11 December 2006   /Accepted: 26 December 2006   /Published: 29 December 2006



Abstract: A technique describing voltage transformation of a transiently oscillating Piezoelectric Transformer (PT) has been reported. The first part is dealing with determination of input and output voltage of PT at resonance using Pico scope; a computer based oscilloscope. It was found that, as time goes, the output voltage of the PT fluctuated due to frequency aging; therefore a second part of experimental set-up was needed to record transformation ratio as a function of transient time. To do that, Computer 2 was connected to DMM1 and DMM2, for the purpose of measuring the voltage transformation, in additional to that, Lab view program was installed in Computer 2 and used to calculate voltage ratio as a function of transient time. In this technique, caution was taken when interpreting results from resonance (110.50 kHz) relative to PT operating in frequency (kHz) range between (109 110.50 114) as a function of transient time.


Keywords: Drift frequencies; Voltage transformation; Transient time; LabView programming; PT; Piezoelectric Transformer; Ascending voltage; Descending voltage; Pico scope; Computer based oscilloscope; Voltage differential probe; GPIB card


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