ltspice

I have this lab homework in which I have to simulate a basic circuit using 1N4007 type diode. I have edited the standard.dio file as I should but the "Pick Diode" list in LTSpice does not update. 1N4007 does not show up. I am adding screenshots of the file directory and the line that I embedded...

Hello, I am learning LTPICE Software. I want to know how I can model any IGBT, MOSFET, or diode in LTSPICE from Datasheet. Is there any Website for downloading the spice model directly?

My very first post, so please be gentle! I am doing an analog design where I want to use an LM324 single supply opamp. So I decided to have crack at LTSPice. I realise LTSpice does not come with a model for that, so I must find and add in my own. Even that process seems onerous, on top of the...

Hi, I want to simulate the product in the link in a spice program, but there is no spice file provided by the manufacturer. How can I simulate the functions of this product in a program like LTspice? - Product : https://www.nxp.com/part/MCZ33810EK#/ - Datasheet ...

Hello, I am working on a 7-level power micro-inverter which composed mainly by power MOSFETs. These logic-level MOSFETs (IRLZ24NS) are driven by separate photovoltaic gate drivers with integrated fast turn-off (Broadcom ACPL-K30T). The problem comes when I try to simulate the circuit and compare...

Hi there! I am currently looking for 2SA1708 and 2SC4488 transistor models to integrate into Spice, but I could not find any model on the web. Could you please help me if you have the related models? Or can you please give me feedback about what parameters are the most important ones to model...

I am trying to simulate a Phase shifted full bridge converter in LTspice. I had already simulated it in matlab simulink and obtained the desired results, but I am redoing it in LTspice to include the effects of non-ideal components. In order to avoid the pulse generation, I imported the...

I have obtained a LTspice file from the net, its a .asc file but its in the form of the following text. I cannot for the life of me figure out if there's a way to convert this to schematic and run it as a simulation file. Please help. Version 4 SHEET 1 1180 680 WIRE -352 -288 -416 -288 WIRE...

Hi, i been trying to understand why Orcad Capture is given me differents values in the simulation to given by LTSpice. I did the calculations manually and only the Orcad Capture output is correct. Why? This is a picture of my circuit in Orcad Capture And this is a picture of my LTSpice...

How does LTspice search for symbols and subcircuits? Is it different for automatically generated symbols and Out of the box symbols? I ask because I ran into an error message that states "Could not open library file "C:\users\*****\Documents\***etc". This was when I tried to run a new project...

Hello, I have tried to add the schottky diode(spice model from onsem) as you can see on the schematics on LTspice but I keep getting the same errors and I have watched the intro from this link : Adding Third-Party Models to LTspice IV but I still get this error I have saved the same schematics...

I am trying to simulate the Infineon GPS SAW Filter B2618. I have converted the S-Parameters *.s2p file by s2spice.exe B2618_WB.s2p Z1 Z2 to *.lib file and imported it into LTspice with autogenerated symbol. When I run the AC simulation I got error: u1:r2p: Resistance must not be zero What I...

My simulation with a dc forward converter has a problem when I add any parallel capacitance to the inductor L3 even when I add a real diode after the L3, the problem with the parallel capacitance is that surge an extremely high peak current in the MOSFET, I don't think that's suppose to happen...

I've been looking at UCC28C43 models provided by TI. Why do we need two different Spice models such as "Transient steady-state" & "transient start-up" for MOSFET driver IC? How do we use them? When do we need these analyses? Do all microcontrollers in power electronics have such separate models...

Hi everyone I am tryig to obtain the gain and frequency plots of a flyback converter controlled with LT8316. LTspice does not provide any frequency response feature but I use middlebrook's method to obtain frequency response. However, result is too weird :( I simply insert a small ac signal...

I am hoping an LTSPICE expert can help me with a model. I downloaded a SPICE model from Vishay's website to test a PFET in a power supply design, specifically Vishay SQJ431EP. The model is attached as "SQJ431EP_HS.TXT". If I run this in my design, LTSPICE takes much longer than normal and...

First of all, thanks for reading this, I tried to replicate this research as my project (not aim to publish or anything just for study purpose) Reference: https://www.iasj.net/iasj/download/ceca8bad4ee05e7c Now I tried to guess and do what I can do about this circuit and the result is this...

I'm trying to model a simple mechanical switch that closes at a set time, remains closed for a set duration, and opens again. I am doing this with a behavioral resistor, but I want it to be clear from the schematic that what I mean is a switch, so I created a new symbol. When I attempt to use...

Hi everyone, I was simulating a simple RC circuit to find it's frequency response using the following two third party Murata capacitor models GRM155C71H104JE19 and GRM155C71H103JE19 in the following circuit. I received the following error message: Multiple instances of "C1"...

Hi, I am trying to plot frequency response of 741 op-amp by LTSpice. No matter I tried, I can't get the plot to be shown. I am a newbie as I just started with LTSpice yesterday. I have attached the file below, please help me to inspect what did I do wrong. Thank you so much.