Piezoelectric Transformer

Details Piezoelectric Transformer Piezoelectric Transformer

1997-02-14

1999-05-11

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310366, H01L41/08

Patent

active

059030860

ABSTRACT:
A piezoelectric transformer has a plate shaped piezoelectric member including a driving section disposed at one portion of the piezoelectric member including one end thereof and a power-generating section at the other portion of the piezoelectric member including the other end thereof. The driving section includes driving electrodes and a portion of the piezoelectric member which is polarized in the thickness direction. The power-generating section includes a power-generating electrode and a portion of the piezoelectric member polarized in the longitudinal direction. At least one polarization electrode which is exposed in part on a surface of the piezoelectric member is provided between the driving section and the power-generating electrode. The degree of polarization in a portion of the power generating section located between the driving section and the at least one polarization electrode is lower than the degree of polarization in a portion of the power generating section located between the power-generating electrode and the at least one polarization electrode.

REFERENCES:
patent: 3549913 (1970-12-01), Moriki et al.
patent: 5440195 (1995-08-01), Ohnishi et al.

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