Piezoelectric transformer wrapped by wrapping member of soft ins

Details Piezoelectric transformer wrapped by wrapping member of soft ins Piezoelectric transformer wrapped by wrapping member of soft ins

1997-06-19

1998-12-08

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310327, 310340, 310345, 310359, H01L 4108

Patent

active

058474900

ABSTRACT:
A piezoelectric transformer element is wrapped together with primary lead members and secondary lead members by a thin soft insulating sheet, with the primary and secondary lead members being exposed outside the wrapping sheet, so that the transformer element is small in size, and easy in handling, and mounting operation on a circuit board. The primary and secondary lead members can be formed of a flexible flat cable. In an electric power supply device using the piezoelectric transformer element, the transformer element, and the flexible flat cable are wrapped by the wrapping sheet together with a portion of a circuit board on which the transformer element and other circuit elements are mounted.

REFERENCES:
patent: 2518883 (1950-08-01), Gravley
patent: 2794132 (1957-05-01), Zapponi
patent: 3622813 (1971-11-01), Kumon
patent: 3851194 (1974-11-01), Kawada
patent: 4028646 (1977-06-01), Ikushima et al.
patent: 4212220 (1980-07-01), Helpinstill, II
patent: 4392074 (1983-07-01), Kleinschmidt et al.
patent: 4629928 (1986-12-01), Hamada et al.
patent: 4637246 (1987-01-01), Lombard et al.
patent: 4727634 (1988-03-01), Fishman
patent: 5646470 (1997-07-01), de Groot

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