几款经典功放电路的LTspice仿真,看看哪一款数据表现更好!

leoooooo · 发表于 2025-9-12 08:31

谢谢楼主的无私分享

anmon · 发表于 2025-9-19 13:45

aaaszx 发表于 2025-9-11 11:20
你们要的在这里

感谢楼主分享，我也向往LTspice很久了，正好拿楼主的实例来学习一下

hwckent · 发表于 2025-9-19 18:13

现在很多人都习惯动手之前先用 LTspice 进行设计模拟，而且很少对仿真结果和实物之间感到失望。
当然，这取决于元件模型的质量、零件的质量以及DIY人员的经验和专业知识。
比如元件模型你从网上下载又不和自己买的零件交叉验证就是出现瞎子摸象各说各的！

hwckent · 发表于 2025-9-19 22:34

本帖最后由 hwckent 于 2025-9-20 01:54 编辑

这是各版本的下载地址，LTspice 24.1.10安装后不兼容旧部分零件模型文件？我记得24.0.16还能运行的
https://filehippo.com/zh/download_ltspice/history/

不知何解，译成中文说非法无法通过只能这样了

Name = LTspice 24.1.10
ProductVersion = 24.1.10.4
URL = https://LTspice.analog.com/download/24.1.10/LTspice64.msi
Size = 181662720
ReleaseDate = 08/09/2025
SHA256 = 2D22BCE2881B064F643FB2CA83CAF30860EAAB7E977EC2B82B39F667079AF02E
MD5 = b553d1237da781ff554eed8c3b7dd8da
ServerFileName = LTspice64.msi
Flags = Critical|Sys64|Os64
RegistryKey = HKUD\Software\Analog Devices Inc.\LTspice\Version
Version = 24.1.10.4
UpdatedApplications = LTspice[1.0-24.1.9.2]
DescriptionHtml = Update for LTspice: (Removes old installation to make use of new features)
Description = Update for LTspice: (Removes old installation to make use of new features)
FeatureHtml = What’s New in LTspice 24.1
Feature = What’s New in LTspice 24.1
Feature1 = • Added a SCOPEDATA choice to the voltage/current source dialog. The file name can now be a string parameter.
Feature2 = • Improved performance and convergence
Feature3 = • Behavioral source expressions using node voltages like "V(node)" can use a string parameter, e.g. "V({param})"
Feature4 = • Relaxed netlist syntax requirements
Feature5 = - Syntax errors inside unused sub-circuit definitions in libraries are silently ignored if they are not instantiated
Feature6 = • MOS Model binning now silently ignored if only one model
Feature7 = • Improved stepped trace behavior in waveform viewer
Feature8 = • Improved Nyquist for Loop waveform representation behavior
Feature9 = • Convergence optimizations
Feature10 = • Add .savestate and .loadstate simulator directives to save and restore the complete transient simulation condition
Feature11 = • Add .option debugtran to add report in log file to help identify convergence challenges
Feature12 = • Enhanced netlist syntax checking
Feature13 = • Changed default integration method to Trapezoidal
Feature14 = • Remember waveform compression settings (under Settings > Compression) between LTspice invocations
Feature15 = • Always accept “3k4” notation as 3.4k (no longer optional)
Feature16 = • Allow device flags to be set to zero for ease of parameterization
Feature17 = • Updated FRA example fra_eg1
Feature18 = • Updated Help documentation
Feature19 = • Bug fixes
FeatureHtml20 = What’s New in LTspice 24
Feature20 = What’s New in LTspice 24
Feature21 = We recommend that you update components after installing or updating LTspice.
Feature22 = In LTspice, choose Tools > Update Components to install the latest LTspice library and models.
FeatureHtml23 = Faster simulation speed and improved consistency
Feature23 = Faster simulation speed and improved consistency
FeatureHtml24 = UI Improvements
Feature24 = UI Improvements
Feature25 = • Icons and cursors have been updated
Feature26 = • Default background has changed
Feature27 = • Screen-resolution awareness scaling has been fixed
Feature28 = • Default keyboard shortcuts have changed
Feature29 = - Dynamic non-modal cheat sheet available from Help menu
Feature30 = - Classic shortcuts still available via
Feature31 = Edit Keyboard Shortcuts > Restore LTspice Classic Values
FeatureHtml32 = Default trtol (time step control error tolerance)
Feature32 = Default trtol (time step control error tolerance)
Feature33 = changed to 2 for better performance in most applications
FeatureHtml34 = Frequency Response Analysis (FRA) enhancements
Feature34 = Frequency Response Analysis (FRA) enhancements
Feature35 = • New 4-terminal probe
Feature36 = - Enables analysis of uModules with integrated top feedback resistors
Feature37 = - Simplifies analysis of inverting outputs and current feedback
Feature38 = - Analyze any points in the loop
Feature39 = • Plot phase margin (phase + 180) instead of phase
Feature40 = • Smooth stimuli transitions for faster settling / improved accuracy
Feature41 = ** Waveform viewer improvements
Feature42 = • Rearrange plot panes via right-click > Move up/down, add above/below
Feature43 = • Add menu items, shortcuts, and buttons to add/clear cursors
Feature44 = • Annotate phase / gain margin via right-click > Notes Annotations
Feature45 = • Annotate steps via right-click > Notes Annotations
Feature46 = • Numerous bug fixes
Feature47 = - Improved marching waveforms, including cursors and dragging traces
FeatureHtml48 = Dialog improvements
Feature48 = Dialog improvements
Feature49 = • Better component selection
Feature50 = - Cleaner, more intuitive layout
Feature51 = - New quick links to analog.com product selector, and datasheets
Feature52 = - Bug fixes
Feature53 = • New subckt symbol parameter editor dialog
FeatureHtml54 = New Configure Analysis toolbar button and shortcut ("a")
Feature54 = New Configure Analysis toolbar button and shortcut ("a")
Feature55 = • Tabs are populated with all possible simulation commands on the schematic
Feature56 = • Edits to all tabs are mapped to schematic text
Feature57 = • Schematic text is toggled between comment/directive appropriately
FeatureHtml58 = Shift + Left-Click toggles between comment/directive
Feature58 = Shift + Left-Click toggles between comment/directive
FeatureHtml59 = Component libraries and AppData
Feature59 = Component libraries and AppData
Feature60 = • Faster, cleaner component updates
Feature61 = - Libraries are cleaned up or overwritten on updates
Feature62 = • Optional user-defined libraries for additional discrete components
Feature63 = - By default, LTspice looks in Documents\LTspice for user.*
Feature64 = (user.dio, mos, res, cap, ind, bead, jft, bjt)
Feature65 = - Directory is configurable in Settings > Search Paths
Feature66 = • Users should not edit ADI-provided files in %localappdata%\LTspice
Feature67 = - LTspice will attempt to dissuade users from saving files here
Feature68 = > Optionally share anonymous usage analytics to help us improve LTspice
FeatureHtml69 = SPICE Log file improved and streamlined
Feature69 = SPICE Log file improved and streamlined
Feature70 = • Report LTspice version, non-default tolerances, etc
FeatureHtml71 = Usability improvements, such as
Feature71 = Usability improvements, such as
Feature72 = • More items on Help menu, including Open Examples
Feature73 = • New toolbar button to tile windows vertically
Feature74 = • Settings dialog remembers last tab
Feature75 = • Command line batch mode (-b) writes to stdout instead of showing GUI
FeatureHtml76 = Numerous bug fixes
Feature76 = Numerous bug fixes
EnhancementHtml = 9/8/25 LTspice 24.1.10
Enhancement = 9/8/25 LTspice 24.1.10
Enhancement1 = • Improved step legend behavior in waveform viewer
Enhancement2 = • Relaxed requirements for PWL files for independent sources
Enhancement3 = - Automatically fall back to "PWL SCOPEDATA=..." behavior if the data is nonmonotonic. A warning is put in the log.
Enhancement4 = • Added optional smoothed half-sine transition for pulse voltage sources
EnhancementHtml5 = 5/26/25 LTspice 24.1.9
Enhancement5 = 5/26/25 LTspice 24.1.9
Enhancement6 = • .MEAS results saved into and SQLITE db file
Enhancement7 = • Improved .savestate/.loadstate behavior when a capacitor value is changed between save/load
Enhancement8 = • Changed FRA "Help me configure" wizard to always leave simultaneous harmonics blank (Nmax=1)
EnhancementHtml9 = 5/2/25 LTspice 24.1.8
Enhancement9 = 5/2/25 LTspice 24.1.8
Enhancement10 = • Unknown .model parameters are now silent warnings again instead of errors
Enhancement11 = • Attributes in schematic editor are only set to visible if they go from empty to populated (instead of any time they are changed)
EnhancementHtml12 = 4/11/25 LTspice 24.1.7
Enhancement12 = 4/11/25 LTspice 24.1.7
Enhancement13 = • Nyquist for Loop representation added
EnhancementHtml14 = 3/29/25 LTspice 24.1.6
Enhancement14 = 3/29/25 LTspice 24.1.6
Enhancement15 = • Enhanced table() function to load numbers from external file
Enhancement16 = • Enhanced .wave directive
EnhancementHtml17 = 3/09/25 LTspice 24.1.5
Enhancement17 = 3/09/25 LTspice 24.1.5
Enhancement18 = • Node names can be expressions again, this time officially documented and supported
EnhancementHtml19 = 2/14/25 LTspice 24.1.3
Enhancement19 = 2/14/25 LTspice 24.1.3
Enhancement20 = • Re-enabled expanded netlist functionality
EnhancementHtml21 = 2/1/25 LTspice 24.1.2
Enhancement21 = 2/1/25 LTspice 24.1.2
Enhancement22 = • Re-enabled caret operator
Enhancement23 = • Duplicate .model cards are accepted if they are identical
Enhancement24 = • Duplicate .func, .param, and .subckt are accepted if they come from the same location in the same file
EnhancementHtml25 = 4/16/24 LTspice 24.0.12
Enhancement25 = 4/16/24 LTspice 24.0.12
Enhancement26 = • Default location for plot settings changed to schematic directory (instead of raw output directory)
Enhancement27 = • Bring up Save As dialog when creating an auto-generated symbol from a netlist
Enhancement28 = • Update FRA examples
EnhancementHtml29 = 3/21/24 LTspice 24.0.10
Enhancement29 = 3/21/24 LTspice 24.0.10
Enhancement30 = • Improved font clarity in schematic text editor dialog
Enhancement31 = • Bring up .step parameter editor when ".step temp ..." directive is right-clicked
Enhancement32 = • Allowed placing .OP data labels at any time
Enhancement33 = • Add working directory to top directory pull-down in Place Component dialog
EnhancementHtml34 = 1/15/24 LTspice 24.0.7
Enhancement34 = 1/15/24 LTspice 24.0.7
Enhancement35 = • Right-click on symbol brings up attribute editor if model has multiple subckt's, to provide model selector pull-down
EnhancementHtml36 = 1/8/24 LTspice 24.0.5
Enhancement36 = 1/8/24 LTspice 24.0.5
Enhancement37 = • Step Legend is now placed in plot rather than a modal window.
Enhancement38 = • Enabled Text, Move, and Stretch toolbar buttons for the Waveform Viewer.
Enhancement39 = • Added -version command line option.
EnhancementHtml40 = 12/06/23 LTspice 24.0.3
Enhancement40 = 12/06/23 LTspice 24.0.3
Enhancement41 = • Command line batch mode (-b) writes to stdout instead of showing GUI
BugFixHtml = 5/26/25 LTspice 24.1.9
BugFix = 5/26/25 LTspice 24.1.9
BugFix1 = • Bug fixes
BugFixHtml2 = 5/2/25 LTspice 24.1.8
BugFix2 = 5/2/25 LTspice 24.1.8
BugFix3 = • Bug fixes
BugFixHtml4 = 4/11/25 LTspice 24.1.7
BugFix4 = 4/11/25 LTspice 24.1.7
BugFix5 = • Bug fixes
BugFixHtml6 = 3/29/25 LTspice 24.1.6
BugFix6 = 3/29/25 LTspice 24.1.6
BugFix7 = • Bug fixes
BugFixHtml8 = 3/09/25 LTspice 24.1.5
BugFix8 = 3/09/25 LTspice 24.1.5
BugFix9 = • Bug fixes
BugFixHtml10 = 2/20/25 LTspice 24.1.4
BugFix10 = 2/20/25 LTspice 24.1.4
BugFix11 = • Bug fixes and minor improvements
BugFixHtml12 = 2/14/25 LTspice 24.1.3
BugFix12 = 2/14/25 LTspice 24.1.3
BugFix13 = • Bug fixes
BugFixHtml14 = 2/1/25 LTspice 24.1.2
BugFix14 = 2/1/25 LTspice 24.1.2
BugFix15 = • Other bugs fixed
BugFixHtml16 = 1/25/25 LTspice 24.1.1
BugFix16 = 1/25/25 LTspice 24.1.1
BugFix17 = • Bug fixes
BugFixHtml18 = 4/16/24 LTspice 24.0.12
BugFix18 = 4/16/24 LTspice 24.0.12
BugFix19 = • Fix rare waveform viewer crash
BugFix20 = • Fix bug in schematic error misinterpreting simulation directives in certain situations
BugFixHtml21 = 4/5/24 LTspice 24.0.11
BugFix21 = 4/5/24 LTspice 24.0.11
BugFix22 = • Fixed bug that caused problems with ascii data, plot settings, etc, in regions that use comma as decimal symbol
BugFix23 = • Fixed bug that prevented automatic file extension concatenation in Save As function
BugFixHtml24 = 3/21/24 LTspice 24.0.10
BugFix24 = 3/21/24 LTspice 24.0.10
BugFix25 = • Fixed -encrypt option in command line
BugFixHtml26 = 2/2/24 LTspice 24.0.9
BugFix26 = 2/2/24 LTspice 24.0.9
BugFix27 = • Fixed broken link in the new ADI web page
BugFixHtml28 = 1/23/24 LTspice 24.0.8
BugFix28 = 1/23/24 LTspice 24.0.8
BugFix29 = • Fixed a bug that caused noise analysis to get stuck if the schematic contained a syntax error
BugFixHtml30 = 1/12/24 LTspice 24.0.6
BugFix30 = 1/12/24 LTspice 24.0.6
BugFix31 = • Fixed bug in pseudo-transient OP with .tran startup
BugFix32 = • Renamed Step Legend as Annotate Steps and moved it's menu entry under ->Notes Annotations as well as Plot Settings->Notes Annotations
BugFix33 = • Addressed high Ua values on the ISO16750 12V and 24V Load Dump Test A and B pulses
BugFixHtml34 = 1/8/24 LTspice 24.0.5
BugFix34 = 1/8/24 LTspice 24.0.5
BugFix35 = • Fixed a bug concerning controlled source with POLY(n) syntax using parameters
BugFixHtml36 = 12/13/23 LTspice 24.0.4
BugFix36 = 12/13/23 LTspice 24.0.4
BugFix37 = • Fixed a crash for netlists that contain only single-threaded devices
BugFixHtml38 = 12/06/23 LTspice 24.0.3
BugFix38 = 12/06/23 LTspice 24.0.3
BugFix39 = • Minor bugs fixed
BugFixHtml40 = 11/20/23 LTspice 24.0.2
BugFix40 = 11/20/23 LTspice 24.0.2
BugFix41 = • Minor bugs fixed
BugFixHtml42 = 11/02/23 LTspice 24.0.1
BugFix42 = 11/02/23 LTspice 24.0.1
BugFix43 = • Minor bugs fixed
AutoCloseApplication = [APPDIR]LTspice.exe

ps：我发现问题了，原来是LTspice 24.1.10 对模型文件命名更苛刻了，名字不能有空格。。。。。
比如：以前的KT-Cordell models.txt你得这样KT-Cordell_models.txt，不能留空格！
还有，新版本 LTspice（24.1.10）对节点名称的解析更严格，要是你以前的仿真文件不能在新版本 LTspice（24.1.10）运行，自己好好排查吧。。
翻箱倒柜翻出以前随便乱花的实验的所谓的SANSUI 菱形架构发现不能运行才有这楼，
当时看上它自带对称平衡输入，人类天生喜爱对称的，整数的东东
Screenshot 2025-09-20 010614.png

[分立后级] 几款经典功放电路的LTspice仿真,看看哪一款数据表现更好!