Noninverting Amplifier

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Ge Chuan - One of the best experts on this subject based on the ideXlab platform.

  • A High-Voltage and Low-Noise Power Amplifier for Driving Piezoelectric Stack Actuators
    'MDPI AG', 2020
    Co-Authors: Xu Lisong, Li Hongwen, Li Pengzhi, Ge Chuan
    Abstract:

    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

Xiaobo Tian - One of the best experts on this subject based on the ideXlab platform.

Erik Bruun - One of the best experts on this subject based on the ideXlab platform.

  • high speed current conveyor based voltage mode operational Amplifier
    Electronics Letters, 1992
    Co-Authors: Erik Bruun
    Abstract:

    A voltage mode operational Amplifier (opamp) built from two current conveyors is proposed as an approach to an opamp featuring a high slew rate. The suggested configuration has the slew rate characteristics of commonly available transimpedance Amplifiers but provides two high impedance (voltage mode) inputs similar to conventional opamps. The configuration has been verified experimentally by using a dual current feedback opamp in a Noninverting Amplifier connection. From the measured results it is concluded that the proposed configuration is suited for the implementation of high speed integrated opamps in either bipolar or CMOS technology.

Yoshihito Amemiya - One of the best experts on this subject based on the ideXlab platform.

  • a 46 ppm c temperature and process compensated current reference with on chip threshold voltage monitoring circuit
    Asian Solid-State Circuits Conference, 2008
    Co-Authors: Ken Ueno, Tetsuya Hirose, Tetsuya Asai, Yoshihito Amemiya
    Abstract:

    A CMOS current reference circuit has been developed in 0.35-mum CMOS process. The circuit consists of a voltage reference circuit, a Noninverting Amplifier, and an output MOS transistor. The circuit generates a reference current independent of temperature and process variations. Temperature- and process-compensation were achieved by utilizing the zero temperature coefficient bias point of a MOSFET. Theoretical analyses and experimental results showed that the circuit generates a quite stable reference current of 18.4 muA on average. The temperature coefficient, load sensitivity, and process sensitivity (sigma/mu) of the circuit were 46-ppm/sigmaC, 1.5%/V, and 4.4%, respectively. The circuit can be used as a current reference circuit for high precision analog circuit systems.

Xu Lisong - One of the best experts on this subject based on the ideXlab platform.

  • A High-Voltage and Low-Noise Power Amplifier for Driving Piezoelectric Stack Actuators
    'MDPI AG', 2020
    Co-Authors: Xu Lisong, Li Hongwen, Li Pengzhi, Ge Chuan
    Abstract:

    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

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