直流稳流电源输出纹波和噪声的测试方法

摘要

如何准确测量出直流稳流电源输出纹波和噪声是电源检定／校准工作中需要解决的问题。通过具体事例分析了用不同的测量设备测量同一台电源的纹波电压其结果不同的原因，提出了在测量稳流电源的纹波电压的过程中如何选择负载类型，为实际电源纹波测量工作提供了一些参考。%It is important to measure accurately the output ripples and noises of DC constant -current power supplies in the verification and calibration of power supplies .This paper presents specific cases and analyzes the reasons for different measurement results made by different meas -urement devices on the ripple voltage of a same power supply .It proposes a method for selecting different loads during measuring the ripple voltage of constant-current power supplies and provides references to our practical measurements on ripples .