power devices – TechConnect Briefs

Optimization of Piezoelectric Transformers Using Elite Genetic Algorithm

Kang C-Y., Lee C-K, Yang Y-J, National Taiwan University, TW

In this work, we present the optimization work for piezoelectric transformers (PT) by using the elite Genetic Algorithm (GA). The Finite-element solver, NTUPZE, is used to calculate the behaviors of piezoelectric transformers. The design parameters [...]

Development of a 3-D Finite-element Solver for Piezoelectric Transformer Analysis

Chen Y-M, Lee C-K, Yang Y-J, National Taiwan University, TW

Piezoelectric transformers step up or step down input voltages by electrical/mechanical/electrical conversion. Piezoelectric transformers have been proved to be promising alternatives for magnetic transformers. Furthermore, since the fabrication technology of thin-film piezoelectric materials becomes mature, [...]

Validation and Calibration of Electrothermal Device Models Using Infrared Laser Probing Techniques

Thalhammer R., Fürböck C., Seliger N., Gornik E., Wachutka G., Technical University of Münich, DE

As it has recently been demonstrated, the internal distribution of carrier concentration and temperature is accessible to accurate measurements by various infrared laser probing techniques. In this work we present an advanced method for the [...]