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Dr. Xu Lisong
University of Chinese Academy of sciences, Beijing 100049, China

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Research Keywords & Expertise

0 Circuit Analysis
0 power amplifier
0 Nanatechnologies
0 precision positioning
0 control engineering practice

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Journal article
Published: 18 March 2021 in Electronics
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This study proposes a new method to design an analog circuit based on the control model of the circuit, and the method is applied in the design of the power amplifiers for driving piezoelectric stack actuators. Focusing on the stability of the circuit, two power amplifiers for driving piezoelectric stack actuators are analyzed deeply. The power amplifier using high-voltage operational amplifiers has a simple circuit structure, and the bandwidth and the ripple of the power amplifier are about 43 kHz and 16 mV, respectively. As for the power amplifier using general operational amplifiers, it possesses the qualities of low cost and simple circuit structure, and the bandwidth and the ripple are 53 kHz and less than 2 mV, respectively. Moreover, the proposed power amplifiers can well drive the mechanism stage during the moving range of the piezoelectric stack actuator, and the travelling ranges are both about 13 μm. Viewing the circuit design as control system design, applying control system design method in circuit design and working with PSpice simulation of the circuit: these are the main contents of the proposed method, and the method offers an answer to designing a power amplifier systematically.

ACS Style

Lisong Xu; Hongwen Li; Pengzhi Li; Chuan Ge. The Application of Classical Control in the Design and Analysis of Power Amplifiers for Driving Piezoelectric Stack Actuators. Electronics 2021, 10, 720 .

AMA Style

Lisong Xu, Hongwen Li, Pengzhi Li, Chuan Ge. The Application of Classical Control in the Design and Analysis of Power Amplifiers for Driving Piezoelectric Stack Actuators. Electronics. 2021; 10 (6):720.

Chicago/Turabian Style

Lisong Xu; Hongwen Li; Pengzhi Li; Chuan Ge. 2021. "The Application of Classical Control in the Design and Analysis of Power Amplifiers for Driving Piezoelectric Stack Actuators." Electronics 10, no. 6: 720.

Journal article
Published: 15 November 2020 in Sensors
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In this paper, based on the principles of general operational amplifiers, a high-voltage operational amplifier is developed. Considering the influences of piezoelectric stack actuators on the circuit, a novel structure using the high-voltage operational amplifier as a noninverting amplifier is proposed. Because of the simple circuit principles and the voltage feedback control structure, the proposed power amplifier has the advantages of low noise and small size, and it can be realized by discrete electric elements easily. In the application of precision positioning, a power amplifier using the proposed circuit principles for driving piezoelectric stack actuators is designed, simulated, and tested. The simulated results show that the proposed power amplifier could conform to the theory of the circuit. The experimental results show that the designed power amplifier conforms to the simulation, the bandwidth of the power amplifier is about 57 kHz, and the ripple of the power amplifier is less than 2 mV. Furthermore, the output of the proposed power amplifier maintains the same type of wave within in a large range of frequency, while the input is the sinusoidal or square wave, and the resolution of the mechanism which the power amplifier is applied in is about 4.5 nm. By selecting the critical electronic elements and using feedback control, the proposed circuit structure is able to realize a low-cost and high-performance power amplifier to drive piezoelectric stack actuators flexibly, which is the novel work of the paper.

ACS Style

Lisong Xu; Hongwen Li; Pengzhi Li; Chuan Ge. A High-Voltage and Low-Noise Power Amplifier for Driving Piezoelectric Stack Actuators. Sensors 2020, 20, 6528 .

AMA Style

Lisong Xu, Hongwen Li, Pengzhi Li, Chuan Ge. A High-Voltage and Low-Noise Power Amplifier for Driving Piezoelectric Stack Actuators. Sensors. 2020; 20 (22):6528.

Chicago/Turabian Style

Lisong Xu; Hongwen Li; Pengzhi Li; Chuan Ge. 2020. "A High-Voltage and Low-Noise Power Amplifier for Driving Piezoelectric Stack Actuators." Sensors 20, no. 22: 6528.