A fast high-voltage amplifier for driving piezoelectric positioners

Colclough, M. S.

doi:10.1063/1.1319984

Cited by 15 publications

(12 citation statements)

References 12 publications

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“…17,18 However, since amplifiers by definition are optimized for best performance when constituent transistors are operating in the linear region, their switching performance tends to be poor.…”

Section: Requirements Of Piezocontroller and The Limitations Of mentioning

confidence: 99%

An auxiliary capacitor based ultrafast drive circuit for shear piezoelectric motors

Chatterjee

Boyer

Wise

et al. 2009

Review of Scientific Instruments

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Shear piezoelectric motors frequently require large voltage changes on very short time scales.Since piezos behave electrically as capacitors, this requires a drive circuit capable of quickly sourcing or sinking a large amount of current at high voltages. Here we describe a novel circuit design using a high voltage amplifier, MOSFET switching stage, and auxiliary capacitor. This circuit can drive piezoelectric motors at higher speeds and lower costs than conventional methods, with greater flexibility for computer automation. We illustrate its application in a controller for a scanning tunneling microscope coarse approach mechanism, and discuss other possible applications and modifications of this circuit.

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Section: Requirements Of Piezocontroller and The Limitations Of mentioning

confidence: 99%

An auxiliary capacitor based ultrafast drive circuit for shear piezoelectric motors

Chatterjee

Boyer

Wise

et al. 2009

Review of Scientific Instruments

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“…Thus, the miller effect is reduced to improve performance in high-bandwidth operation. Distinct from some circuits [6], this stage is in highvoltage stack architecture which is a combination of a voltage ladder and some transistors. The architecture is shown in Fig.…”

Section: B Middle Stagementioning

confidence: 99%

A fast low-cost analog amplifier suitable for driving piezoelectric actuator

Liu

Gao

et al. 2013

Proceedings 2013 International Conference on Mechatronic Sciences, Electric Engineering and Computer (MEC)

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A fast low-cost analog amplifier suitable for driving piezoelectric actuator is proposed. The amplifier is mainly made up of a low-voltage amplifier and some high-power transistors. The circuit makes fully use of the respective advantages of high stability of low-voltage operational amplifier and high power of discrete component. The simulation results of the whole power amplifier indicate that the power amplifier designed could excellently accomplish the high-voltage magnification with high linearity and relatively high bandwidth. And the principle and performance of the circuit are presented.

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“…In addition, the power output exists when power amplifiers are in static states, which results in the low efficiency and heat rejection problem of power amplifiers. (iii) Error-amplified style power amplifiers (Colclough, 2000;Yan et al, 2003): The schematic of this kind of power amplifiers is shown in Figure 2(c). In the error-amplified style power amplifiers, the output voltage of the power amplifiers is directly fedback to the voltage amplification unit to ensure that the power amplifiers work within the normal range.…”

Section: Introductionmentioning

confidence: 99%

A High-voltage and High-power Amplifier for Driving Piezoelectric Stack Actuators

Wang

Zhu

Yang

et al. 2009

Journal of Intelligent Material Systems and Structures

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Aiming at the strong capacitive impedance of piezoelectric stack actuators, the principle to improve the dynamic performance of piezoelectric stack actuators through increasing the peak values of the output current and output power of power amplifiers are explored. Based on the error-amplified principle, the method that enlarges the output voltage of the dynamic power amplifiers through using a high-voltage operational amplifier in series with the power booster section, as well as the method that improves the peak values of the output current and output power through paralleling multiple power booster units utilizing the class AB quasi-complementary symmetry power amplifier circuits, are proposed and analyzed. Utilizing the proposed principle and method, a high-voltage and high-power amplifier for driving piezoelectric stack actuators is developed, simulated, and tested. The research results indicate that the developed power amplifier not only can break through the limit that each single power booster unit can only achieve the power output <125 W, but also can disperse the current and power averagely among the power booster units in parallel, which are beneficial to realizing the high power output with good static and dynamic performance and enhancing the reliability of the power amplifier.

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A fast high-voltage amplifier for driving piezoelectric positioners

Abstract: A dc-coupled high-voltage amplifier suitable for driving piezoelectric positioners in both linear and stepping modes is described. The amplifier provides a bipolar output of up to 200 V and 340 mA, and has a maximum slew rate of 300 V/μs.

Cited by 15 publications

References 12 publications

An auxiliary capacitor based ultrafast drive circuit for shear piezoelectric motors

An auxiliary capacitor based ultrafast drive circuit for shear piezoelectric motors

A fast low-cost analog amplifier suitable for driving piezoelectric actuator

A High-voltage and High-power Amplifier for Driving Piezoelectric Stack Actuators

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