Precision charge drive with low frequency voltage feedback for linearization of piezoelectric hysteresis

Title: Precision charge drive with low frequency voltage feedback for linearization of piezoelectric hysteresis
Creator: Fleming, Andrew J.
Relation: 2013 American Control Conference (ACC). Proceedings of the 2013 American Control Conference (Washington, DC 17-19 June, 2013) p. 6022-6026
Relation: ARC.DP0986319
Publisher Link: http://dx.doi.org/10.1109/ACC.2013.6580781
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Resource Type: conference paper
Date: 2013
Description: A new charge drive circuit is proposed that utilizes a low frequency voltage feedback loop to linearize piezoelectric hysteresis down 0.1 Hz. This approach eliminates many of the present difficulties and allows extremely low transition frequencies without a long transient response. Experimental results demonstrate that the proposed charge amplifier can effectively reduce piezoelectric hysteresis and creep to less than 1.3% at scan-rates of 10 Hz, 1 Hz, and 0.1 Hz.
Subject: capacitors; creep; frequency control; Piezoelectric actuators; transient response
Identifier: http://hdl.handle.net/1959.13/1063033
Identifier: uon:17191
Identifier: ISBN:9781479901784
Language: eng
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