Electronics Computer-Aided Design

how to control the time step in .Tran analysis in spice3?

Hello, everyone, I am doing some simulation of VCO (4 stage differential) in spice3. When I do the .tran analysis, the...

4 comments posted 21yrs

posted by wangllu

4 comments posted 21yrs posted by wangllu

COB PCB with blinking led

I'm looking for a COB(chip on board) PCB with a blinking led. This can be found in toys and electronic candles. I need...

0 comments posted 22yrs

posted by roy.c

0 comments posted 22yrs posted by roy.c

Commonly used PCB Design Components, your favorites requested

Hello everyone, As a designer of a PCB / Schematic Design tool I am continually asked for more libraries. However, exce...

5 comments posted 22yrs

posted by support

5 comments posted 22yrs posted by support

Multi Channel Design for Protel Nexar 2004

I have a multi channel design that has a single op-amp per channel. I want to use an IC that has 4 op amps per part. Is...

0 comments posted 22yrs

posted by euros

0 comments posted 22yrs posted by euros

Allegro to ADS translation

Hi, evereone. I hope someone can help me to translate footprints from Allegro to ADS. I used to do it this way: Export...

0 comments posted 22yrs

posted by MitrofanovVV

0 comments posted 22yrs posted by MitrofanovVV

PSpice Non-Inverting Opamp Simulation Convergence Error

Hello, I'm trying to model a very basic non-inverting amplifier using a Burr-Brown OPA134 opamp using OrCAD PSpice A/D...

3 comments posted 22yrs

posted by apparatus.home

3 comments posted 22yrs posted by apparatus.home

Tina and EDS 3, or TINA and Eagle ?

Waht do tou think about the most convenient schematics and PCB suite, for professionnal usage in general electronics : T...

3 comments posted 22yrs

posted by patard

3 comments posted 22yrs posted by patard

Circuit simulator optimized for 64-bit processor, or for HT?

Hi. Is there any circuit simulator that is optimized to run on 64-bit processors (e.g. 64-bit AMD Athlons (sp?) ) or HT...

0 comments posted 22yrs

posted by immortalizer171-usenet

0 comments posted 22yrs posted by immortalizer171-usenet

Need help with CD4059A "Divide-By-N" chip

I need help setting up this to an N factor of 1000. I am trying to lay this chip out on a PCB. I have the manufacturer d...

1 comments posted 22yrs

posted by <elehman1

1 comments posted 22yrs posted by <elehman1

Gerber Viewers

Hi all, I am looking around for Gerber Viewers. Of course freeware would be best, very cheapware might be considered. I...

12 comments posted 22yrs

posted by mountains

12 comments posted 22yrs posted by mountains

Newbie Question: Which tool(s) to use?

Hi, all. I'm a tech writer, and recently decided to learn more about electronics. Along the way I've picked up four or...

2 comments posted 22yrs

posted by null

2 comments posted 22yrs posted by null

new to pspice

how can i edit or create a new pspice part in orcad 9.2...plz help. thanx in advance Sudip kumar Chatterjee.

3 comments posted 22yrs

posted by hailsudip

3 comments posted 22yrs posted by hailsudip

Cadsoft Eagle

Hello, I'm at the last stage to open my entreprise, When looking for a CAD software, i took the decision to use Cadsoft...

3 comments posted 22yrs

posted by reply_on_the_forum_please

3 comments posted 22yrs posted by reply_on_the_forum_please

UltiBoard 5.72 layout problems...

Hi there, I'll hope i'am in the correct n.g. here. ;) Serious, i've got some sort of a problem; someone dropped me an U...

0 comments posted 22yrs

posted by rf_design

0 comments posted 22yrs posted by rf_design

Devices I'd like to see

A wish list of parts: An op-amp with the equivelent of the 2SK170 as the input transistor would be nice. I'd like a low...

0 comments posted 22yrs

posted by kensmith

0 comments posted 22yrs posted by kensmith