LTSPICE Tutorial

1. LTspice® Getting Started Tutorial

LTspice® Getting Started Tutorial | Analog Devices

LTspice®: Overview

LTspice is a high performance Spice III simulator, schematic capture and waveform viewer with enhancements and models for easing the simulation of switching regulators. Our enhancements to Spice have made simulating switching regulators extremely fast compared to normal Spice simulators, allowing the user to view waveforms for most switching regulators in just a few minutes. Included in this download are Spice, Macro Models, over 200 op amp models, as well as resistors, transistors and MOSFET models. This video provides an overview of the advantages of using LTspiceIV in an analog design. Topics include the benefits of using LTspice, how easy it is to get started and where to go to download LTspice.

2. LTspice Tutorials

LTspice Tutorial | The Complete Course

This LTspice Tutorial will explain how to use LTspice®, the free circuit simulation package from Linear Technology Corporation (LTC) (www.linear.com). LTspice is node unlimited, incredibly easy to learn and can be used to simulate most of the analogue components from Linear Technology as well as discrete and passive components. It is exceptionally good at simulating switched mode power supplies (dc/dc converters). Models from other manufacturers can also be imported.

 

** Warning: LTspice IV is no longer updated. Please use LTspice XVII **

 

Each LTspice tutorial below takes you through a different feature of LTspice

 

LTspice Tutorial: Part 1

How to enter/edit schematics, open up pre-designed 'jig' files, configure voltage sources, run the simulation, probe currents and voltages

 

LTspice Tutorial: Part 2

How to perform ac analysis on filters, zooming in on waveforms, piecewise linear waveforms

 

LTspice Tutorial: Part 3

Simulating dc/dc converters, measuring instantaneous and average power, efficiency reports, switching in a load, adding parasitic elements, simulating transformers and coupled inductors, behavioral (behavioural) voltage sources

 

LTspice Tutorial: Part 4

Importing third party SPICE models as .SUBCKT files and .MODEL files

 

LTspice Tutorial: Part 5

Keyboard Shortcuts, Tricks with Piecewise Linear (PWL) sources, Waveform Mathematics, Running multiple simulations with varying component values

 

LTspice Tutorial: Part 6

Creating your own MOSFET models

 

Mike Engelhardt icon - change your desktop icon to the icon below. Just a bit of fun. Right click on the picture below and select 'Save target as...'

Then right click over your existing LTspice icon -> Properties -> Change Icon

Mike Engelhardt in full flow - LTspice seminar, Reading, UK, October 2011

LTspice Models - including FETs, Schottky diodes, Zener Diodes

 

LTspice Frequently Asked Questions

LTspice is a registered trademark of Linear Technology Corporation

3. LTspice XVII Tutorial

This article is a “LTspice XVII tutorial”. Please refer to the following articles for explanations related to other electronic circuits.

TOC

1. LTspice Basic Operation
2. LTspice Simulation
3. LTspice SPICE Model

LTspice Basic Operation

Setting

1. Download and Install
2. Initial Setting
3. Control Panel Setting

Schematic Drawing

1. How to Draw a Schematic
2. How to Operate Commands for a Schematic

LTspice Simulation

Analysis method

1. Analysis Types
2. Transient Analysis(.tran)
3. AC Analysis(.ac)
4. DC Sweep Analysis(.dc)
5. Noise Analysis(.noise)
6. DC Transfer Function Analysis(.tf)
7. DC Operating Point Analysis(.op)
8. Parametric Analysis(.step)
9. Temperature Analysis(.temp)
10. Monte Carlo Analysis(mc)
11. Independent Voltage Source Setting
12. Simulation Commands Setting
13. How to use Waveform Viewer

Dot Commands

1. Dot Commands List
2. .measure/.meas
3. .ic
4. .savebias
5. .loadbias
6. .save
7. .lib/.include
8. .backanno
9. .ferret
10. .wave
11. .nodealias
12. .softstart

LTspice SPICE Model

Basic knowledge

1. LTspice folder/file structure and SPICE model type
2. LTspice-Addition of Device model(.model)
3. LTspice-Addition of Sub-circuit model(.subckt)
4. LTspice-Creating new Schematic symbol
5. LTspice-Circuit hierarchy(blocked)
6. LTspice-Encrypting SPICE model