Demonstrating the EasyEDA 5 pin parameterised opamp model which allows a wide range of opamps to be modelled simply by entering the major datasheet parameters of the desired device into the model Properties dialog.
Note that the default parameters model a TL081 device but almost any voltage feedback opamp can be modelled by adjusting the available parameters.
Demonstrating the EasyEDA Memristor using the ngspice Memristor XSPICE element.
The memristor is a two-terminal resistor with memory, whose resistance
depends on the time integral of the voltage across its terminals. rmin and
rmax provide the lower and upper limits of the resistance, rinit is its
starting value (no voltage applied so far).
The voltage has to be above a threshold vt to becom...
To learn more, see The EasyEDA tutorial:
See also the Simulation Quickstarter:
**To learn more, see [The EasyEDA tutorial].**
[The EasyEDA tutorial]: https://easyeda.com/Doc/Tutorial/
To open simulations from the view window, click on the little green pencil in the upper right t...
Demonstrating the LM56EE spice model, developed for EasyEDA, of the LM56 dual thermostat device.
To see more about the device model:
Super Menu > Miscellaneous > Netlist for Document > Spice
A simple demonstration circuit showing the LM56 spice model with a voltage input representing a time varying temperature.
LM56EE is a behavioural model of the LM56, unique to EasyEDA, based on the TI datash...
The EasyEDA Simulation Quickstarter: a single sheet introduction to the essentials of how to create and run a simulation in EasyEDA.
To open this simulation in the EasyEDA Editor, click on the little green pencil on the upper right of the View window then press:
and follow the instructions.
Everything you need to know about how to create and run a simulation in EasyEDA, in a single...
A collection of symbols and spice models for the CMOS 4016 and 4066 type analogue switches.
All EasyEDA spice subcircuit models in this collection are based on the .subckt models developed by Robertugo_2005 in:
A simple simulation adapted from the [YouTube video](https://youtu.be/F9w5r5l0J8Y) by devttys0.
The problem is to invert a 0-20v signal using only an opamp powered by a +/-15V DC supply. The circuit can be broken down to three stages:
1. Shifting the signal down to be +/-10V signal > Add a 0.1uF cap which will block any DC element in the signal.
2. Inverting the signal > Use a classic inverting a...
Demonstrating the LM319EE spice subcircuit model, developed for EasyEDA, and a modified ST subckt spice model of the LM119/LM219/LM319 open collector comparator with floating (uncommitted) output transistor emitter (output ground) connection.
Although LM319EE is a dedicated spice model for the LM319, it can easily be adapted to represent the LM119 and the LM219 devices, including any variations f...
A series of tutorials to introduce and help users learn the basics of spice simulation in EasyEDA.
The content of this project is constantly evolving and is updated frequently so watch this space!
The EasyEDA spice simulation learning resource.
A continuation of these tutorials can be found here:
Some examples of current sources using discrete devices.
It includes the TI LM334 3-Terminal Adjustable Current Source and the Ixys IXCP10M90S high voltage current regulator.
This project is part of the EasyEDA spice simulation learning resource.
Examples of the various functions available in EasyEDA.
Some of the functions are built-in functions of ngspice. Some are EasyEDA implementations of new functions or are functions that that improve on the ngspice versions in some way, such as improving convergence, are more reliable in simulation, are more widely applicable in expressions and B sources or are just easier to use.
Note that, unles...