Title :
Mixed analytical and numerical design method for piezoelectric transformers
Author :
Sánchez, A.M. ; Sanz, M. ; Prieto, R. ; Oliver, J.A. ; Cobos, J.A.
Author_Institution :
Div. de Ingenieria Electronica, Univ. Politecnica de Madrid, Spain
Abstract :
Analytical models are widely used for piezoelectric transformers (PTs) design. In this paper, the additional usefulness of finite element analysis (FEA) for PT design will be shown. With FEA it is possible to optimize the PT design not only by maximizing the energy transference, but cleaning the working frequency range of spurious modes (geometrical 2D/3D effects). Besides, FEA tools allow studying other interesting aspects of the PT design such as the manufacturing tolerances or the influence of the fixing layer on the PT performance (which is a critical design point). A mixed analytical and numerical design method for PT is proposed.
Keywords :
finite element analysis; piezoelectric devices; transformers; critical design point; energy transference maximisation; finite element analysis; geometrical 2D/3D effects; manufacturing tolerances; numerical design method; piezoelectric transformers; spurious modes; working frequency; Analytical models; Design methodology; Design optimization; Electrodes; Equations; Finite element methods; Frequency; Geometry; Topology; Transformers;
Conference_Titel :
Power Electronics Specialist Conference, 2003. PESC '03. 2003 IEEE 34th Annual
Print_ISBN :
0-7803-7754-0
DOI :
10.1109/PESC.2003.1218166
