双驱动足压电平台驱动电源设计
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国家自然科学基金资助项目(51375224);华侨大学高层次人才科研启动费基金资助项目( 15BS102)

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Design of the Power Supply of Piezoelectric Platform With Two Drive Foot
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    摘要:

    根据双驱动足压电平台的驱动特性,设计了相应的驱动电路。该电路为可控电压源,具有信号π/2延迟和低频线性放大的特点,线性度好。由PSoC3发出频率、幅值连续可调的驱动信号和相应的偏置信号,经硬件电路实现信号的处理和电压、功率放大,放大范围为0~220 V,可通过置换更高性能的场效应管实现更大范围的电压输出。硬件电路分为信号处理部分和功率放大部分。信号处理部分主要是进行分频和信号偏置,功率放大部分进行电压放大和功率输出。针对三极管放大时的工作参数的分布特性,使用电压跟随器实现波形的反对称修正和跟随。用集电极输出的方式实现电压放大,有一定的输出内阻,因压电叠堆的大容性特性,只适用于1 kV内的低频输出。

    Abstract:

    According to the characteristic of piezoelectric platform with two drive foot, the corresponding driver circuit is designed in this paper. This circuit is a controlled voltage source with the features of 90 degree signal delay, low frequency linear amplification and good linearity.The driving signals with continuously adjustabgle frequency and amplitude and the corresponding bias signals are produced by the PsoC3, then the signal process and the voltage and power amplification are realized by the hardware circuit, the voltage amplification is in the range of 0220 V.The circuit can achieve a wider range of output voltage by the displacement of higher performance of field effect tube.The hardware circuit is consits of the signal processing part and the power amplification part. The signal processing part is mainly for frequency division and signal bias,while the power amplifier section is designed for voltage amplifier and power output. In view of the triode amplifier as working parameters of the distribution, the voltage follower is used to realize the waveform antisymmetric modification and following.The set collector is used to amplify the voltage, and the output of the circuit has certain resistance. Considering the large capacitive characteristics of the electric pile, the circuit is only applicable to low frequency output.

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刘汉清,王寅,黄卫清.双驱动足压电平台驱动电源设计[J].压电与声光,2016,38(2):262-266. LIU Hanqing, WANG Yin, HUANG Weiqing. Design of the Power Supply of Piezoelectric Platform With Two Drive Foot[J]. PIEZOELECTRICS AND ACOUSTOOPTICS

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  • 在线发布日期: 2016-04-01
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