摘要
功率放大器是主动控制隔振系统中的重要元件之一,其主要作用是根据指令信号,向电磁作动器提供交变电流以产生需要的交变力。本文介绍了该类功率放大器的基本工作原理与性能指标特点,设计了基于PWM控制的功率放大器控制系统。仿真及实验结果表明,设计的功率放大器能够满足系统各项设计指标要求,具有很强的实用性。
Power amplifier is a key component of active vibration isolation system. According to the command signal, power amplifier can provide electromagnetic actuator the corresponding alternating current to generates required force. The working principles and requirements of power amplifier are discussed. A power amplifier based on the PWM control is presented and it meets the requirements proved by the results of experimental and simulations.
出处
《船电技术》
2010年第12期12-16,共5页
Marine Electric & Electronic Engineering
关键词
功率放大器
交变电流
PWM控制
电磁作动器
power amplifier
alternating current
PWM control
electromagnetic actuator
