Piezoelectric ceramic transformer having ring-shaped input elect

Details Piezoelectric ceramic transformer having ring-shaped input elect Piezoelectric ceramic transformer having ring-shaped input elect

1996-09-24

1998-05-26

Dougherty, Thomas M.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310366, 310363, H01L 4108

Patent

active

057571066

ABSTRACT:
A piezoelectric ceramic transformer has a rectangular parallelopiped piezoelectric ceramic plate divided into a generator section and driving sections on both sides of the generator section, and first ring-shaped input electrodes and second ring-shaped input electrodes are alternately put on the rectangular parallelopiped piezoelectric ceramic plate at intervals so as to create electric field perfectly oriented in the longitudinal direction of the ceramic plate.

REFERENCES:
patent: 2974296 (1961-03-01), Rosen
patent: 3562563 (1971-02-01), Schafft
patent: 3598909 (1971-08-01), Sasaki et al.
patent: 3736446 (1973-05-01), Berlincourt et al.
patent: 5229680 (1993-07-01), Sato et al.
patent: 5278471 (1994-01-01), Uehara et al.
patent: 5424602 (1995-06-01), Sato et al.
patent: 5576590 (1996-11-01), Ohnishi et al.
Masanori Ueda et al., "Energy Trapping Type Piezoelectric Transformer" Fujitsu Limited, 1992, pp. 31-35, with partial English translation.

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