超磁致伸缩执行器线性驱动电源的设计  

Design of Linear Driving Power for Giant Magnetostrictive Actuator

作　　者：王琦[1] 李宝福[1] 徐青青[1] 

机构地区：[1]上海大学机电工程与自动化学院,上海200072

出　　处：《机械制造》2009年第8期25-27,共3页Machinery

基　　金：国家自然科学基金资助项目(编号:50675129)

摘　　要：针对当前超磁致伸缩执行器驱动电源效率不高问题,采用连续调整型恒流源的原理,并选用功率MOSFET作为功率放大元件,研制出具有"轨-轨"输出特性的线性电流源型GMA驱动电源。实际测试的结果表明,其性能良好,可以满足驱动超磁致伸缩材料的要求。Lower power efficiency is the weakness of the driving power for giant magnetostrictive actuators currently. Based on the principle of the continuously adjustable constant current source and using power MOSFET as the power amplifier, a linear driving power for giant magnetostrictive actuator has been developed. The test results show that the driving power has excellent performance and can meet the requirement for driving the giant magnetostrictive materials.

关 键 词：超磁致伸缩执行器 驱动电源 恒流源 

分 类 号：TH703[机械工程—仪器科学与技术]