Electronics Computer-Aided Design

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Developing a Circuit Simulator from Scratch

Hi, Can anyone give me some directions on how to develop a circuit simulator from scratch. I need to develop a simple s...
21 comments posted 19yrs
posted by komminenibalaji
21 comments posted 19yrs posted by komminenibalaji

Help, Creating dc motor symbol for LtSpice

I'm trying to model a dc motor and would like to convert the example found at: http://www.ecircuitcenter.com/Circuits/d...
1 comments posted 19yrs
posted by chapmjw
1 comments posted 19yrs posted by chapmjw

Urgent help-Spice simulation engine

Hello, I am currently using the Spice3f5 version of spice simulator. I am trying to figure out which file does the Newt...
0 comments posted 19yrs
posted by dilip.sesh
0 comments posted 19yrs posted by dilip.sesh

Offset Voltage in Op-amp simulation problem.

Hi! I want to measure the offset voltage of an opamp. First, I configure the opamp in an unity gain buffer and measure...
0 comments posted 19yrs
posted by amy_burton2007
0 comments posted 19yrs posted by amy_burton2007

pcb: a great tool if there ever was one

I downloaded and built pcb (2006* release) from pcb.sourceforge.net on my FreeBSD system. I was using the pre2005 relea...
11 comments posted 19yrs
posted by samiamSPAMTHIS
11 comments posted 19yrs posted by samiamSPAMTHIS

Database interface for Parts - Protel 99SE

Hi, Does anyone know how I could interface the database from my inventory to a part field in Protel so that when a Sche...
3 comments posted 19yrs
posted by dhuisman
3 comments posted 19yrs posted by dhuisman

Micro-Cap9 release

Hello, Happy news In January of 2007, Micro-Cap 9 was released. The release soft : www.spectrum-soft.com/demodownnew.sht...
0 comments posted 19yrs
posted by jfk1948
0 comments posted 19yrs posted by jfk1948

Vista

Went into PC Club today to pick up some more RAM. They told me that they would have Laptops available with XP for anoth...
37 comments posted 19yrs
posted by To-Email-Use-The-Envelope-Icon
37 comments posted 19yrs posted by To-Email-Use-The-Envelope-Icon

MicroSimSPICE applications notes

I happened to come across an electronic copy of Microsim's old (1997!) application book... its available for download a...
3 comments posted 19yrs
posted by JKolstad71HatesSpam
3 comments posted 19yrs posted by JKolstad71HatesSpam

What is the meaning of 'smooth factors' in Hspice

Hello, In calculating the gate capacitance, hspice model uses cgd = CF5 * cap * DD+ where DD+ is a so called smooth fac...
0 comments posted 19yrs
posted by almitra.pradhan
0 comments posted 19yrs posted by almitra.pradhan

Old trackball won't work on modern laptops

Since I have to do a largish schematic and won't be in the office the whole time I wanted to connect my trusty old trac...
150 comments posted 19yrs
posted by notthisjoergsch
150 comments posted 19yrs posted by notthisjoergsch

Nonlinear inductors in SPICE

Hi guys! I'm trying to model an inductor which varies inductance according to the terminal potential (don't ask why!)....
1 comments posted 19yrs
posted by amtw
1 comments posted 19yrs posted by amtw

How to plot pole zero results in ngspice

As my previous thread in this group became more or less off topic after a while, I start this new one with a related bu...
10 comments posted 19yrs
posted by hugocoolens
10 comments posted 19yrs posted by hugocoolens

External Back-up Drive Recommendations

What brand would lurkers here recommend for a USB back-up drive? ...Jim Thompson -- | James E.Thompson, P.E. | mens | |...
55 comments posted 19yrs
posted by To-Email-Use-The-Envelope-Icon
55 comments posted 19yrs posted by To-Email-Use-The-Envelope-Icon