PIEZOELECTRIC TRANSFORMER AND ITS USAGE

摘要

PROBLEM TO BE SOLVED: To provide a piezoelectric transformer which is superior in space efficiency because of high output power and compactness. SOLUTION: This piezoelectric transformer is provided with a plurality of elements 11 for piezoelectric transformer which are respectively formed by making a specified electrode in a plate-like piezoelectric vibrator having a disc effective vibration area, and have a radial spread primary vibration mode property. The respective input parts and output parts of the elements are respectively connected with each other in parallel.