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Abstract-The attractiveness of the smart piezoelectric technology is mainly due to its desirable features of miniaturization and the extreme simplicity of the resulting components compared to widely used wire wound conventional magnetics. As a result, much attention has been focused on the application of PETs in high frequency switching power supplies as well as low profile inverters. In this paper, performance study on Rosen-type, multilayer piezoelectric transformer (PET) as a potential component for power electronic conversion is presented. The equivalent circuit and impedance response of PET is studied using impedance analyzer HP4192. The effects of load resistance on voltage gain, output power and resonance characteristics are studied using simulations and experimentally under sinusoidal excitation conditions. A sinusoidal source using simple laboratory equipments and a power operational amplifier (POA) is fabricated. The details of this sinusoidal source are also given.

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No abstract

Abstract-In this paper, performance study on multilayer Rosen-type piezoelectric transformer (PET) as a potential component for power electronic conversion is presented. The attractiveness of the smart piezoelectric technology is primarily due to its desirable features of miniaturization and the extreme simplicity of the resulting components compared to widely used wire wound conventional magnetics. As a result, recently much attention has been focused on application of PETs in high frequency switching power supplies as well as low profile inverters. PET equivalent circuit and impedance response is studied using impedance analyzer HP4192. The effects of load resistance on gain, efficiency and resonance characteristics are studied, using simulations and experimentally under sinusoidal excitation conditions. A sinusoidal source using common laboratory equipments and a power operational amplifier (POA) is fabricated. The details of this sinusoidal source designed and fabricated in laboratory are given. DescriptionPETs are special type of transformers which transform electrical energy into mechanical energy and back into electrical energy (as distinguished from the more commonly used magnetic transformers, which employ magnetic energy as the medium) through mechanical vibrations. Lead zirconate titanate (PZT) or modified PZT-type ceramic materials are being used for PET applications with their unique properties like high quality factor, response speed and power density, compared to other materials. Also, both sensing and actuating functions can be realized in the same material.