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Improved charge amplifier using hybrid hysteresis compensation
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10.1063/1.4818140
/content/aip/journal/rsi/84/8/10.1063/1.4818140
http://aip.metastore.ingenta.com/content/aip/journal/rsi/84/8/10.1063/1.4818140

Figures

Image of FIG. 1.
FIG. 1.

Schematic of typical charge amplifier (top) adapted from Ref. and schematic of a modified VQV feedback circuit (bottom).

Image of FIG. 2.
FIG. 2.

Amplifier loop phase margin versus inductance (L) and resistance (R) of the series load impedance shown for the VQ amplifier (top) and the VQV amplifier (bottom).

Image of FIG. 3.
FIG. 3.

Amplifier loop cross-over frequency versus inductance (L) and resistance (R) of the series load impedance shown for the VQ amplifier (top) and the VQV amplifier (bottom).

Image of FIG. 4.
FIG. 4.

Block diagram showing the charge amplifier, piezoelectric device, and the hybrid hysteresis compensation algorithm.

Image of FIG. 5.
FIG. 5.

Amplifier control block diagram.

Image of FIG. 6.
FIG. 6.

Amplifier's loop shaping design showing the open-loop amplifier (OL), the feedback circuit (F), the loop transmission (LT), and the closed-loop (CL) frequency responses.

Image of FIG. 7.
FIG. 7.

Experimental voltage-charge hysteresis of our piezo actuator and the fitted Maxwell's slip model.

Image of FIG. 8.
FIG. 8.

Plot of the piezoelectric actuator's extension versus 10 cycles of the 10 Hz 0–80 V sinusoidal reference signal, which is given by Eq. (5) , is shown for the power amplifier's control mode set to voltage (top), charge (middle), and charge with hybrid hysteresis compensation (bottom).

Tables

Generic image for table
Table I.

Circuit element values for the circuits shown in Fig. 1 .

Generic image for table
Table II.

Transition frequencies for the feedback circuit in Fig. 1 with the values provided in Table I .

Generic image for table
Table III.

Stiffness and force limit values for modeling the hysteresis between the voltage and charge of our piezoelectric actuator.

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/content/aip/journal/rsi/84/8/10.1063/1.4818140
2013-08-19
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Improved charge amplifier using hybrid hysteresis compensation
http://aip.metastore.ingenta.com/content/aip/journal/rsi/84/8/10.1063/1.4818140
10.1063/1.4818140
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