Piezoelectric vibrating device

Details Piezoelectric vibrating device Piezoelectric vibrating device

1995-11-03

1998-07-14

Dougherty, Thomas M.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310330, 310349, H01L 4108, B06B 106

Patent

active

057809585

ABSTRACT:
A piezoelectric vibrating device is disclosed. The device includes a case having a first compartment with a first compartment height. A bender element, fabricated from an piezoelectric material, is disposed within the first compartment. A motion limiter is disposed within the case for preventing damage to the bender. The motion limiter has a first portion that abuts against the case to prevent the first compartment height from compressing beyond a predetermined first compartment minimal height. The device further includes electronic controls for providing a signal to the bender element. The electronic controls further include an optimal wave form signal generator. The wave form may also be a square wave, pulse train, truncated wave or other type of wave depending on each particular application.

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