Electronics Computer-Aided Design

Using Spice models in SwitcherCad: help

Hallo, I'm a student and I've a problem using Spice models into SwitcherCad. I downloaded the models from Internet, but...

5 comments posted 20yrs

posted by rosarioarbucci

5 comments posted 20yrs posted by rosarioarbucci

What is the diffrences between pspice and Hspice????

Regards: What is the diffrences between pspice and Hspice???? Thank you thank you may goodness be with you all

3 comments posted 20yrs

posted by mikelinyoho

3 comments posted 20yrs posted by mikelinyoho

PSpice Convergence Problem

I have a circuit comprising one OP-77/AD op-amp that is basically a Sallen-Key filter with some other resistors and cap...

1 comments posted 20yrs

posted by bob

1 comments posted 20yrs posted by bob

Protel99SE sp6

Hello All: I'm using Protel99SE service pack 6 and wonder if anyone has a fix for some of the problems I'm seeing. Afte...

1 comments posted 20yrs

posted by jameyguy

1 comments posted 20yrs posted by jameyguy

Information on microwave transfer switch

Good Morning, for my thesis I've to design a transfer switch operating between 8 and 14 Ghz, I would want to ask you wh...

3 comments posted 20yrs

posted by etantonio

3 comments posted 20yrs posted by etantonio

4538 mode neededl

Could anybody please direct me to, or email a subcircuit for a 4538 monostable? I have TTL monostble models but none ha...

0 comments posted 20yrs

posted by bretth2o00

0 comments posted 20yrs posted by bretth2o00

VHDL IN PSpice

Hi everyone. I find the OrCAD Capture contians a VHDL-based design entry. Can I use a block writed by VHDL to replace th...

1 comments posted 20yrs

posted by zyzmax001

1 comments posted 20yrs posted by zyzmax001

l impedance vs common mode impedance

Dear community, can someone explain to me some misunderstandings. There is a differencial pair in a PCB. Simulation ret...

3 comments posted 20yrs

posted by MitrofanovVV

3 comments posted 20yrs posted by MitrofanovVV

Protel 2004

Hi, I'm using Protel99SE and have been apprroached by Altium with an upgrade path to Protel 2004. HAs anyone got 2004 t...

6 comments posted 20yrs

posted by fps

6 comments posted 20yrs posted by fps

OpenTech open source designs and tools

Hello, The new release (1.5.1) of OpenTech is available now with more and more new free open source hardware designs an...

0 comments posted 20yrs

posted by jamilkhatib75

0 comments posted 20yrs posted by jamilkhatib75

OrCAD - Dividing a Capture project into several PCB-boards?

I created a NoCAD Capture project with schematics for power supply, control unit and output stage. Now I would like to...

0 comments posted 20yrs

posted by nyffeler

0 comments posted 20yrs posted by nyffeler

Sources

I can not set up Voltage and current sources that can be changed with time (pre-set functions) or parameter of some poi...

0 comments posted 20yrs

posted by anhngoclai_at_yahoo_dot_com

0 comments posted 20yrs posted by anhngoclai_at_yahoo_dot_com

Where could we find a simulation circuit drawn of SCR rectifier with Protel99?

Anyone can offer a sample of the scr simulation circuit with protel99? or any suggestion where can we find one?

0 comments posted 20yrs

posted by wcn

0 comments posted 20yrs posted by wcn

I need GND etch but no other traces in Allegro

PCB in Allegro: Wanted to create a route keepout area to prevent traces to get into the area.But I want the GND etch to...

0 comments posted 20yrs

posted by MitrofanovVV

0 comments posted 20yrs posted by MitrofanovVV

Kicad

I have started a yahoo group for users of the excellent free EDA package Kicad so users can ask questions, swap tips an...

5 comments posted 20yrs

posted by ruffrecords

5 comments posted 20yrs posted by ruffrecords