PIEZOELECTRIC TRANSFORMER

摘要

A piezoelectric transformer that includes a piezoelectric body having driving portions and a power generating portion, an input electrode, and an output electrode. The driving portions and the power generating portion are arranged in the lengthwise direction of the piezoelectric body. The driving portions are disposed symmetrically relative to a plane that passes through a center of the piezoelectric body in the lengthwise direction and is orthogonal to the lengthwise direction, occupy no less than half of the regions in the piezoelectric body, and are include two or more adjacent polarized regions.

主权项

1. A piezoelectric transformer comprising:
a piezoelectric body having a plurality of polarized regions, the plurality of polarized regions including a plurality of driving portions defined by a first polarized region of the plurality of polarized regions and a power generating portion defined by a second polarized region of the plurality of polarized regions; an input electrode constructed to apply a voltage to each of the plurality of driving portions; and an output electrode constructed to output a voltage generated by the power generating portion, wherein the plurality of driving portions and the power generating portion are arranged in a lengthwise direction of the piezoelectric body, the plurality of driving portions are disposed symmetrically relative to a plane that passes through a center of the piezoelectric body in the lengthwise direction and is orthogonal to the lengthwise direction, and the plurality of driving portions occupy no less than half of the plurality of polarized regions of the piezoelectric body, and each of the plurality of driving portions includes two or more adjacent polarized regions.