Electronics Computer-Aided Design

Help With A Schematic

I've just completed this device and it does what it's supposed to(distort a guitars output signal) but has no gain... C...

6 comments posted 20yrs

posted by william_gallagher

6 comments posted 20yrs posted by william_gallagher

simulation errors by protel99

Hi,everybody. I always do some simulations before designing PCB.But one quesiont often occurs. Such as in the same circ...

1 comments posted 20yrs

posted by eehinjor

1 comments posted 20yrs posted by eehinjor

PSpice question about transorbs

Am trying to create a model for a high-power TVS (transorb) diode. I have a list of the required parameters and would l...

0 comments posted 20yrs

posted by Pard

0 comments posted 20yrs posted by Pard

Source for spice models

Hi all, What's the best site currently for downloading models? I lost all my bookmarks during a recent virus infection....

1 comments posted 20yrs

posted by pb

1 comments posted 20yrs posted by pb

newbie question help: L-Edit / Cadence layouts for MEMS/MST

Hi All, I have some basic newbie questions about microfabrication with respect to MEMS designs (a course I am taking)....

0 comments posted 20yrs

posted by a7b98208

0 comments posted 20yrs posted by a7b98208

Good, relatively low cost PCB layout SW?

Someone had recommended PC123; a bit large for POTS but doable. BUT. It is impossible to get useable documentation. Aft...

44 comments posted 20yrs

posted by robertbaer

44 comments posted 20yrs posted by robertbaer

Nested parens are driving me nuts

some of my SPICE ventures get to be Rube Goldberg-esque -- and the nested parenthesis are probably the reason. how is i...

7 comments posted 20yrs

posted by jdwalton

7 comments posted 20yrs posted by jdwalton

Protel DXP 7, How to lock prerouts?

I cannot find the pre-route lock button. Anybody HELP Thanks, Dave

2 comments posted 20yrs

posted by spam0

2 comments posted 20yrs posted by spam0

PSpice newbie question...?

How do you manage to show node numbers in the Capture schematic? Other simulation programs let you turn these on and off...

2 comments posted 20yrs

posted by Nutz

2 comments posted 20yrs posted by Nutz

Creating new PBGA footprints in Ultiboard 8

I want to create a new footprint in Ultiboard 8 for a 0.8mm pitch PBGA 26x26. This one does not exist in the standard l...

8 comments posted 20yrs

posted by chris.wilkinson

8 comments posted 20yrs posted by chris.wilkinson

Astable Multivibrator Generates Sub-Ground Voltages

Hello, I've been simulating a circuit of the 'classic' astable multivibrator and analysing the results. This is the old...

16 comments posted 20yrs

posted by jeff.clarke

16 comments posted 20yrs posted by jeff.clarke

Protel DXP simulation

Does anybody know how to use a parameter created with "parameter_set" ? I mean I would like to change easily a value in...

0 comments posted 20yrs

posted by frederic.geraldo

0 comments posted 20yrs posted by frederic.geraldo

PCBTemp.Exe (calculating PCB trace temperature rise)

Does anyone happen to have a copy of Doug Brooks' program PCBTemp? (It calculates temperature rise in PCB traces based...

2 comments posted 20yrs

posted by JKolstad71HatesSpam

2 comments posted 20yrs posted by JKolstad71HatesSpam

maybe somebody uses HiCAD next??

Hi all, I'm looking for contacts with people who've already used 2D/3D software called HiCAD next. I'd like to increase...

0 comments posted 20yrs

posted by martinsson

0 comments posted 20yrs posted by martinsson

Logic Level Translator

There was a series of posts in the past few weeks concerning translating a 3.3V logic level into 5V logic. I have poste...

11 comments posted 20yrs

posted by thegreatone

11 comments posted 20yrs posted by thegreatone