电源电压纹波和噪声对起动机的影响

The Influence Of Power Supply Voltage Ripple And Noise On Starter

纹波和噪声是衡量电源稳定性的重要指标,电源的纹波和噪声可能会成为干扰信号,影响电子系统正常工作,甚至会烧毁用电器。但纹波和噪声是电源不可避免的“输出物”,在使用电源给起动机供电时,需要电源的纹波和噪声控制在要求的限值以下,确保起动机的使用寿命。文章介绍了开关电源纹波和噪声的概念、产生机理和起动时纹波和噪声的测量方法,分析了纹波和噪声对起动机的影响,并提出了降低纹波的几种措施,对于采用电源起动的试验起到一定的参考价值。

Ripple and noise are important to the stability of the power supply.They may become interference signals and affect the normal operation of the electronic system,and even burn the electrical appliances.However,ripple and noise are inevitable"outputs"of the power supply.When the power supply is used to power the starter,the ripple and noise need to be controlled below the required limit to ensure the life of the starter.This article introduces the concept,generation mechanism and measurement method of ripple and noise during start-up,analyzes the impact of ripple and noise on the starter,meanwhile,proposes several measures to reduce ripple.This article plays a certain reference value to start-test using power supply.