摘要
讨论了一种新型振动测试系统的开关功率放大器,该放大器采用全桥拓扑结构,输出频率可以调节(5 H z^5 kH z)的正弦波,而且系统工作效率较高。给出了部分电路原理图,并对电路的有关参数设计给予说明,最后给出了5 kW样机的试验波形。
In this article, a novel switch mode power amplifier, witch is formed of a full-bridge topology is introduced. The frequency of output is adjustable from 5 Hz to 5 kHz and the inverter can work in a very high efficiency. Some of control circuitry are given, and the parameters of the inverter are also illustrated. At last, experimental results of a 5 kW prototype are provided.
出处
《电气传动》
北大核心
2006年第1期30-32,共3页
Electric Drive
基金
上海市重点学科建设项目基金([2001]71号)
关键词
开关功率放大器
振动测试
PWM
switch mode power amplifier vibration testing pulse width modulation(PWM)