纹波是由于直流稳定电源的电压波动而造成的一种现象,因为直流稳定电源一般是由交流电源经整流稳压等环节而形成的,这就不可避免地在直流稳定量中多少带有一些交流成份,这种叠加在直流稳定量上的交流分量就称之为纹波。 纹波的成分较为复杂,它的形态一般为频率高于工频的类似正弦波的谐波,另一种则是宽度很窄的脉冲波。
But the ripple and low precision make it impossible to replace linear power source completely.
然而,因输出精度较低、有开关纹波等因素,在仪用电源方面目前还不能完全代替线性电源。
参考来源 - 多路数控精密开关电源的控制系统研究Then the influence of medium’s gain and boundary conditions on ripple’s gain has been discussed. It is pointed out that "the most quickly growing spatial frequency" and "the maximum growth spatial frequency" are different.
在此基础上我们研究了介质增益及边界条件等对纹波增益的影响,指出了最大增长频率和最快增长频率的区别。
参考来源 - 三阶非线性效应对ICF激光驱动器中光束均匀性的影响·2,447,543篇论文数据,部分数据来源于NoteExpress
实验结果表明,数字功率放大器具有电流纹波小、稳定性能好和电流响应快等优点。
Experimental results show that this digital power amplifier has the characteristic of low current ripple, quick current response and high stability.
电力系统中传统的相控整流型电源正在逐步被具有高精度、低纹波、高效率等特性的开关电源取代。
Traditional phase-controlled rectifying power supply is being replaced by the switching one, which is characterized by high precision, low voltage ripple and high efficiency.
仿真和样机实验表明并联混合型稳流系统可以满足加速器磁铁对供电电流低纹波和近似无滞后跟踪的性能要求。
Simulation and prototype experiment results show that the system can meet the extremely high steady state and dynamic requirements of the magnets: very low ripple and good following performance.
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