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Title: Piezoelectric drive circuit

Abstract

A piezoelectric motor drive circuit is provided which utilizes the piezoelectric elements as oscillators and a Meacham half-bridge approach to develop feedback from the motor ground circuit to produce a signal to drive amplifiers to power the motor. The circuit automatically compensates for shifts in harmonic frequency of the piezoelectric elements due to pressure and temperature changes.

Inventors:
 [1]
  1. (Raymore, MO)
Issue Date:
Research Org.:
Kansas City Plant (KCP), Kansas City, MO (United States)
OSTI Identifier:
872491
Patent Number(s):
5945768
Application Number:
08/853,500
Assignee:
AlliedSignal Inc. (Morris Township, NJ)
Patent Classifications (CPCs):
H - ELECTRICITY H02 - GENERATION H02N - ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
DOE Contract Number:  
AC04-76DP00613
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
piezoelectric; drive; circuit; motor; provided; utilizes; elements; oscillators; meacham; half-bridge; approach; feedback; ground; produce; signal; amplifiers; power; automatically; compensates; shifts; harmonic; frequency; due; pressure; temperature; changes; piezoelectric element; temperature change; temperature changes; motor drive; electric motor; drive circuit; electric element; piezoelectric elements; harmonic frequency; piezoelectric motor; elements due; piezoelectric drive; electric drive; electric elements; /310/

Citation Formats

Treu, Jr., Charles A.. Piezoelectric drive circuit. United States: N. p., 1999. Web.
Treu, Jr., Charles A.. Piezoelectric drive circuit. United States.
Treu, Jr., Charles A.. Tue . "Piezoelectric drive circuit". United States. https://www.osti.gov/servlets/purl/872491.
@article{osti_872491,
title = {Piezoelectric drive circuit},
author = {Treu, Jr., Charles A.},
abstractNote = {A piezoelectric motor drive circuit is provided which utilizes the piezoelectric elements as oscillators and a Meacham half-bridge approach to develop feedback from the motor ground circuit to produce a signal to drive amplifiers to power the motor. The circuit automatically compensates for shifts in harmonic frequency of the piezoelectric elements due to pressure and temperature changes.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {8}
}

Patent:

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