Automated design tools for piezoelectric transformer-based power supplies

Abstract

This paper proposed a design approach for piezoelectric-transformer-based power supplies. Initially, an analytical approach is used to derive the Mason equivalent circuit parameters of a PT. This is coupled with a semi-automated procedure to decide the appropriate physical dimensions of the PT. The procedure is applied to a typical low-power power supply specification, whereupon a specific transformer is design, verified using COMSOL and used as a simulated converter in SPICE. Results show that the design can be successfully implemented while maintaining efficient zero-voltage switching operation.

Keywords

• equivalent circuits
• piezoelectric devices
• switching convertors
• zero voltage switching
• SPICE
• transformers
• automated design tools
• piezoelectric transformer-based power supplies
• design approach
• piezoelectric-transformer-based power supplies
• analytical approach
• Mason equivalent circuit parameters
• low-power power supply specification
• specific transformer