PSpice and LTSpice

Started by petrus bitbyter in sci.electronics.design8 years ago 8 replies

Lately I got a PSpice listing that differs wildly from the LTSpice listings used by LTSpice. Anyone knows a way to convert from PSpice to...

Lately I got a PSpice listing that differs wildly from the LTSpice listings used by LTSpice. Anyone knows a way to convert from PSpice to LTSpice? petrus bitbyter


UC3825 help with Pspice

Started by Waldes in sci.electronics.design9 years ago 1 reply

Hi all! I need simulation file for this IC. If someone has it, please share with me. I found here some files for UC3843, UC3842, but they...

Hi all! I need simulation file for this IC. If someone has it, please share with me. I found here some files for UC3843, UC3842, but they are current mode, and I want something with voltage mode for flyback converter, which has voltage regulated from 30V to 300V. So I will be gratefull for model UC3825 or information how to simulate in Pspice PWM modulator with Soft Start and limit max cur...


PSpice Ratiometric Simulations

Started by Bob Penoyer in sci.electronics.design5 years ago 17 replies

This is not a school question. It's a real-life question. Suppose three resistors are connected to a common node. The other end of each...

This is not a school question. It's a real-life question. Suppose three resistors are connected to a common node. The other end of each resistor is connected to a voltage source. So V1 is connected to R1, V2 is connected to R2, and V3 is connected to R3. The opposite terminal of each resistor connects R1, R2, and R3 together. I want to use PSpice Monte Carlo to observe the voltage at t...


Ping Charlie Edmondson and Other Early PSpice Team members

Started by Jim Thompson in sci.electronics.design4 years ago 1 reply

From the LTspice List... "analogspiceman" analogspiceman !!PING!! to Jim Thompson, Mike Engelhardt and anyone else who might posses...

From the LTspice List... "analogspiceman" analogspiceman !!PING!! to Jim Thompson, Mike Engelhardt and anyone else who might posses historical insider knowledge regarding PSpice... I am in the process of updating the depth and accuracy of the historical SPICE page over at the LTwiki: http://ltwiki.org/?title=LTspice_Genealogy_-_The_Heritage_of_Simulation_Ubiquity A while ago I ...


Shaped Noise Source (Simulation)

Started by Jim Thompson in sci.electronics.design8 years ago 8 replies

Anyone with experience in creating a shaped noise source for AC analysis/simulation in Spice/PSpice/LTspice? EFREQ in PSpice is a bit of a...

Anyone with experience in creating a shaped noise source for AC analysis/simulation in Spice/PSpice/LTspice? EFREQ in PSpice is a bit of a kluge to use :-( ...Jim Thompson -- | James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Disc...


PSpice Netlisting/Template Trick

Started by Jim Thompson in sci.electronics.design5 years ago 7 replies

Just discovered (or re-remembered :-), in PSpice... To just have the color of an LED showing in the schematic (I hate over-klutzy drawings), I...

Just discovered (or re-remembered :-), in PSpice... To just have the color of an LED showing in the schematic (I hate over-klutzy drawings), I just enter color and the template collects the model name... Template= X^@refdes %1 %2 My\@COLOR\@LED COLOR=RED LED=LED ...Jim Thompson -- | James E.Thompson | men...


SPICE model for lead acid cell

Started by Daku in sci.electronics.design6 years ago 1 reply

Could some electronics guru please direct me to a SPICE model for a lead acid cell. I understand that PSpice comes with a model, but I do not...

Could some electronics guru please direct me to a SPICE model for a lead acid cell. I understand that PSpice comes with a model, but I do not use PSpice, and I hear that the library is encrypted.


PSpice worst case simulation

Started by Joerg in sci.electronics.design7 years ago 36 replies

Hi Folks, Reached an end of a rope here: How do you make a worst case simulation in PSpice (or even Monte Carlo for that matter) properly find...

Hi Folks, Reached an end of a rope here: How do you make a worst case simulation in PSpice (or even Monte Carlo for that matter) properly find the extremes for an opamp offset voltage and input bias current? For example, for the opamp we have: VOS: Offset voltage VOS_DIST: Distribution, I assume VOS_NTOL: What gets entered here? VOS_PTOL: ... and here? If I enter 7mV or whatever f...


TUTORIAL - Example 1, Using Femm to Calculate Component Values of Simple Microstrip to use in LTspice/PSpice

Started by RobertMacy in sci.electronics.design3 years ago 31 replies

I offer to share with you a TUTORIAL but don't know how to get it into your hands. The TUTORIAL is about 15kB, zipped, and describes the...

I offer to share with you a TUTORIAL but don't know how to get it into your hands. The TUTORIAL is about 15kB, zipped, and describes the step-by-step process of using FREE femm 4.2 to analyze a simple PCB structure to calculate values to then use in circuit simulation, LTspice/PSpice. The sequence can be modified for use in analyzing really complex structures, structures where th...


PSpice Gain/phase model for S/H and quantization in software loop (digital SMPS)

Started by Klaus Kragelund in sci.electronics.design5 years ago 4 replies

Hi I have implemented a digital SMPS in a Cortex M3 controller. The feedback of the SMPS is done using the TL431 and opto coupler...

Hi I have implemented a digital SMPS in a Cortex M3 controller. The feedback of the SMPS is done using the TL431 and opto coupler feedback. The feedback is sampled by the ADC at 10kSa and the sampled values controls the duty-cycle of the SMPS. It is stable, but I would like to simulate the loop in PSPice. The ADC has sample and hold along with quantiziation that affects the gain/phase. Th...


AN: New Spice Model Posted to my Website

Started by Jim Thompson in sci.electronics.design2 years ago 1 reply

New Spice Model Posted to my Website: Every Spice Simulator has their own proprietary way of implementing digital functions... LTspice Digital...

New Spice Model Posted to my Website: Every Spice Simulator has their own proprietary way of implementing digital functions... LTspice Digital Primitives don't play on PSpice, PSpice Digital Primitives don't play on LTspice... neither play anywhere else. Thus I have rolled my own Spice Model for the venerable HC4538 one-shot that uses universal behavioral modeling for the digital elemen...


NE5532 SPICE MODEL

Started by Anonymous in sci.electronics.design10 years ago 7 replies

Hi, Does anyone have a PSpice (.olb format) for the NE5532 Dual Low-noise Amplifier. I have searched everywhere and cannot find this. Many...

Hi, Does anyone have a PSpice (.olb format) for the NE5532 Dual Low-noise Amplifier. I have searched everywhere and cannot find this. Many thanks Luke


Transfer function

Started by User Zero in sci.electronics.design8 years ago 12 replies

Hi 2 all, is there any program to derive transfer function from circuit? Something like PSpice, but instead of numerical to do analytical...

Hi 2 all, is there any program to derive transfer function from circuit? Something like PSpice, but instead of numerical to do analytical "computation".


OT: Remote Access.

Started by Jim Thompson in sci.electronics.design2 years ago 31 replies

When I'm at my desk I access my Laptop and two PC's via a KVMP switch. With the weather as nice as it is here in the Springtime of...

When I'm at my desk I access my Laptop and two PC's via a KVMP switch. With the weather as nice as it is here in the Springtime of the Southwest (


Are TI Pspice models encripted?

Started by Anonymous in sci.electronics.design2 years ago 67 replies

I was going to try to load the TI TPS54335 spice model into LTspice but it looks encrypted. Is TI encrypting its spice models...

I was going to try to load the TI TPS54335 spice model into LTspice but it looks encrypted. Is TI encrypting its spice models now? http://www.ti.com/product/tps54335 Thanks


Stability of older Orcad/PSpice combos?

Started by Joerg in sci.electronics.design7 years ago 148 replies

Hello Folks, On my PC this software crashes often and hard and needs too many re-installs. It slows down one project to a crawl here and that...

Hello Folks, On my PC this software crashes often and hard and needs too many re-installs. It slows down one project to a crawl here and that needs to get done. I could use older versions as long as my client can read the files into 16.3. Question: In your experience, what was a relatively stable (as in "not many crashes") version I could try to go back to? The license should allow a do...


Handling HSpice Files

Started by Jim Thompson in sci.electronics.design3 years ago

HSpice2PSpiceNewEdit.pdf, on the Simulation Tools & Macros Page of my website, has been updated with some new library format...

HSpice2PSpiceNewEdit.pdf, on the Simulation Tools & Macros Page of my website, has been updated with some new library format information. While the title says PSpice, the techniques apply to all Berkeley Spice derivatives... including LTspice ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovati...


Big Chip

Started by Jim Thompson in sci.electronics.design8 years ago 4 replies

Just collected all the documentation together for my latest chip design into a hierarchical PDF... 77 pages of schematics... 12 of them B-size...

Just collected all the documentation together for my latest chip design into a hierarchical PDF... 77 pages of schematics... 12 of them B-size ;-) If anyone out there is using PSpice Schematics, I learn something new each trip. Found a trick to ease netlisting when you have a HUGE data bus ;-) Drop me an E-mail if you want info. ...Jim Thomps...


Any of you use Multisim?

Started by Jim Thompson in sci.electronics.design3 years ago 10 replies

Any of you use Multisim? Can Multisim handle PSpice/LTspice style behavioral expressions... GDC_I1 X2 VN VALUE...

Any of you use Multisim? Can Multisim handle PSpice/LTspice style behavioral expressions... GDC_I1 X2 VN VALUE {(1+TANH(2.2/0.1*(V(X2,VN)-0.5)))/2*45u} Or can it only handle B-sources? ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations | et | ...


OT: PERL

Started by Jim Thompson in sci.electronics.design6 years ago 26 replies

Is there a recommended "PERL for Dummies" book? All I need it for is searching and replacing mixed text and numeric strings using a text editor...

Is there a recommended "PERL for Dummies" book? All I need it for is searching and replacing mixed text and numeric strings using a text editor (UltraEdit, editing PSpice libraries). I have "Learning Perl" by Randal Schwartz, but it's way too deep into stuff I don't need. I guess what I need is a "cookbook" if such exists. Suggestions? ...J...