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杂音电压(noise voltage)整流设备及直流变换器输出直流电压中的电压脉动成分。直流变换器输入直流电流中的脉动成分对输入直流电压脉动成分的影响称为倒灌杂音电压。不同的通信设备对整流设备及直流变换器提出各种杂音电压指标,对整流设备提出的杂音电压指标有: 电话衡重杂音电压 人耳及耳机对各种杂音频率的响应(简称频响)不同,测量仪表中用衡重网络(见噪声测量)来修正。该仪表测出的杂音将各种频率的杂音电压值等效为800Hz的电压值后,取其方均根值。60V以下整流器指标为小于2mV。
Noise voltage The voltage ripple component in the DC voltage from the rectifying device and DC-DC converter. DC converter input DC current ripple component of the input DC voltage ripple component of the impact known as the back-up noise voltage. Different communication equipment on the rectifier equipment and DC converter put forward a variety of noise voltage indicators, proposed noise rectifier equipment voltage indicators are: the phone weighs the noise voltage of the human ear and headphone noise frequency of various responses (referred to as the frequency response) is different , Measuring instruments used to weigh the network (see noise measurements) to be amended. The noise measured by the instrument will be a variety of frequencies of noise voltage equivalent to 800Hz voltage value, whichever is the root mean square value. Rectifier specifications below 60V are less than 2mV.