Regenerative electric driver circuit

Details Regenerative electric driver circuit Regenerative electric driver circuit

1998-01-20

1999-10-05

Dougherty, Thomas M.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310317, H01L 4108

Patent

active

059629517

ABSTRACT:
A vibrating mechanism comprised of piezoelectric elements which vibrate at a high frequency when a voltage is applied to them. The piezoelectric elements are mounted on a rib so that their free ends extend from the rib. When the piezoelectric elements are energized the free ends vibrate with a "wing-flapping" motion. Weights may be attached to the free ends of the piezoelectric element to increase the inertial component of vibration. In the preferred embodiment of the invention, the piezoelectric elements are prestressed. The invention will be an inexpensive substitute for other vibratory devices.

REFERENCES:
patent: 4507762 (1985-03-01), Meyer et al.
patent: 5453653 (1995-09-01), Zumeris
patent: 5563464 (1996-10-01), Okubu et al.

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