双驱动足压电作动器的多通道驱动电源设计  

Multi-channel Drive Power Supply Design for Dual Drive Foot Piezoelectric Actuators

作　　者：邵立 卢倩[1] 赵博文 陈思睿 SHAO Li;LU Qian;ZHAO Bowen;CHEN Sirui(School of Mechanical Engineering,Yancheng Institute of Technology,Yancheng 224051,China)

机构地区：[1]盐城工学院机械工程学院,江苏盐城224051

出　　处：《机械与电子》2023年第7期3-7,13,共6页Machinery & Electronics

基　　金：国家自然科学基金资助项目(51805465);江苏省高等学校自然科学研究重大项目(21KJA460009);江苏省普通高校研究生科研创新计划项目(SJCX21_1525)。

摘　　要：为实现双驱动足压电作动器的作动,设计相应的驱动电源。该压电驱动电源采用3通道信号发生器,产生3路相位差为90°的方波信号,再经过3通道线性放大电路,其由OPA2277UK和PA79DK构成的2级线性放大电路,输出3路大功率偏置信号驱动电机运行。同时,针对容性负载对电路的影响进行分析并且采用隔离电阻、反馈电容和对称相位补偿方案,防止驱动电源自激振荡。实验结果表明,该驱动电源可以输出不同的电压控制信号,具有良好的稳定性和可靠性,能够满足电机的应用要求。In order to realize the operation of the dual-drive foot piezoelectric actuator,a corresponding drive power supply is designed.The piezoelectric drive power supply uses a three-channel signal generator to generate three square wave signals with a phase difference of 90°,and then passes through a three-channel linear amplifier circuit consisting of OPA2277UK and PA79DK as a two-stage linear amplifier circuit to output three high-power bias signals to drive the motor operation.Meanwhile,the impact of capacitive loads on the circuit is analyzed and an isolation resistor,feedback capacitor,and symmetric phase compensation scheme are used to prevent self-excited oscillations of the drive power supply.The experimental results show that the drive power supply can output different voltage control signals,has good stability and reliability,and can meet the application requirements of the motor.

关 键 词：压电陶瓷 驱动电源 OPA2277UK PA79DK 电压控制 电机 

分 类 号：TM359.4[电气工程—电机]