Piezoelectric transformer, e.g. for tubular piezoelectric exposed conductive parts, has a piezoelectric material with its surface partly covered with an insulating layer containing glass

摘要

A transformer has an exposed conductive part (1) made from piezoelectric ceramic material like lead zirconate titanate ceramic material. It also has input (11) and output (12) parts, each of which has multiple input (31,32) and output (41,42) electrodes. Between the input and output parts there is an insulating layer (13) that interlinks these parts mechanically.