之前在”试着使用LTspice-直流-直流转换器的动作确认” 一 文中已经观察了输出纹波电压的水平,这次我们用FFT功能查看其频率成分。 以LT8640的Demo文件作为仿真电路,FFT分析需要稳定状态下的结果,因此在电源启动后需要确认纹波电压。 输出电压的纹波成分如下图所示。 通过FFT分析,可以看到不仅包含1MHz的开关频率成分,还...
由于 FFT 功能是以在瞬态分析 (时间轴) 中获得的数据为基础进行计算,因此它是内置于 Waveform Viewer 的功能。 FFT 功能使用步骤 以一个由 3 个不同频率和幅值的正弦波合成的信号为例,通过瞬态分析查看其波形,并使用 FFT 显示功能确认其频率的分布。瞬态分析产生正弦波合成波形的电路,如下图 (图1) 所示: ...
LTspice IV工作指南说明书 1st edition Swiridoff Verlag ISBN: 978-3-89929-258-9 1st edition M A N U A L,M E T H O D S A N D A P P L I C A T I O N S Preface by Mike Engelhardt G I L L E S B R O C A R D THE LTSPICE IV M A N U A L ,M E T H O D...
求助 LTspice中可以搭建分段函数的流控电压源吗 就是根据当前回路电流判断应该输出多少电压 ...
ability to run a Fast Fourier Transform or FFT on any of the waveforms and so that is what we are going to do next... and show the pitfalls along the way. Setting the options for LT to do this needs and we need basic information toset this up. One trick we can use ...
Advanced Waveform Viewer –The tool includes powerful waveform analysis features such as FFT, multiple plot windows, and extensive measurement tools.Parameter Sweeping & Monte Carlo Simulation –Engineers can perform advanced statistical and parametric analyses for robust design evaluation.Custom Component ...
Advanced Waveform Viewer –The tool includes powerful waveform analysis features such as FFT, multiple plot windows, and extensive measurement tools.Parameter Sweeping & Monte Carlo Simulation –Engineers can perform advanced statistical and parametric analyses for robust design evaluation.Custom Component ...
試著使用LTspice系列中,介紹了LTspice的用法。 在TRAN分析-一種基於時間軸的分析中,可以像示波器一樣查看信號電平隨時間的變化。 另一方面,當你想要查看一個信號的頻率成分時,FET功能是很有用的,並且通過仿真你可以查看電路的失真和噪聲成分。 這次我來介紹一下這個FFT
Try LTspice series introduces the use of LTspice. In the TRAN analysis, which is a time axis analysis, you can check the signal level as time changes like an oscilloscope. On the other hand, the FFT function is useful when you want to check the frequency
Advanced Waveform Viewer –The tool includes powerful waveform analysis features such as FFT, multiple plot windows, and extensive measurement tools.Parameter Sweeping & Monte Carlo Simulation –Engineers can perform advanced statistical and parametric analyses for robust design evaluation.Custom Component ...