Title :
Analysis and modeling of a Rosen type piezoelectric transformer
Author :
Syed, Ehson M. ; Dawson, Francis P. ; Rogers, Edward S.
Author_Institution :
Dept. of Electr. & Comput. Eng., Toronto Univ., Ont., Canada
fDate :
6/23/1905 12:00:00 AM
Abstract :
This paper presents an equivalent circuit model for a Rosen type piezoelectric transformer. Transmission line equations for both the thickness and longitudinal modes with a clamped boundary condition on one end of each section are developed. The partial expansion theorem is used to convert the transmission line model into an equivalent circuit model. Losses are introduced in a post-processing step using the experimental value of mechanical quality factor. L´Hospital´s rule is used to simplify the circuit near a resonance frequency. Experimental results confirm the existence of multimode resonance and anti-resonance behavior
Keywords :
circuit resonance; equivalent circuits; losses; piezoelectric devices; transformer windings; transformers; L´Hospital´s rule; Rosen-type piezoelectric transformer; anti-resonance behavior; clamped boundary condition; equivalent circuit model; longitudinal modes; mechanical quality factor; multimode resonance; partial expansion theorem; piezoelectricity; resonance frequency; thickness; transmission line equations; Distributed parameter circuits; Equivalent circuits; Material properties; Power transmission lines; Predictive models; RLC circuits; Resonance; Strontium; Transmission line theory; Vibrations;
Conference_Titel :
Power Electronics Specialists Conference, 2001. PESC. 2001 IEEE 32nd Annual
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-7067-8
DOI :
10.1109/PESC.2001.954377
