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.
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)
关键词
超磁致伸缩执行器
驱动电源
恒流源
Giant Magnetostrictive Actuator Driving Power Constant Current Source
