Laminated piezoelectric transformer

Details Laminated piezoelectric transformer Laminated piezoelectric transformer

1998-04-20

1999-12-28

Ramirez, Nestor

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310359, H01L 4104

Patent

active

060085657

ABSTRACT:
A laminated step-down piezoelectric transformer has a driving portion 11 and an electric power generating portion 12 disposed on both end portions of an elongated plate. These portions are formed by alternately laminating piezoelectric members 111 and internal electrodes 112 . . . interposed by an insulating portion respectively. The piezoelectric members 111 of the driving portion 11 are thicker in thickness than that of the electrical power generating portion 12. The transformer is driven with a second-order mode in the longitudinal direction so that the transformer has a high transformation efficiency. Impedance matching can be realized easily. The piezoelectric transformer is safe in operation by separating the input and the output from each other.

REFERENCES:
patent: 2830274 (1958-04-01), Rosen et al.
patent: 5118982 (1992-06-01), Inoue et al.
patent: 5241236 (1993-08-01), Sasaki et al.
patent: 5402031 (1995-03-01), Tagami et al.
patent: 5463266 (1995-10-01), Fukuoka et al.
patent: 5777425 (1998-07-01), Ino et al.

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