Electronics Computer-Aided Design

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How to change logic levels in LTSPice?

First time for me to do mixed mode sims on LTSpice. How do you change the voltage level of behavioral logic such as "AN...
7 comments posted 17yrs
posted by notthisjoergsch
7 comments posted 17yrs posted by notthisjoergsch

LTspice - fast NRZ pulses how?

Does anyone know a trick to make fast random NRZ pulses in LTspice? I don't want to use the read-from-file option, but...
4 comments posted 17yrs
posted by wavemaker
4 comments posted 17yrs posted by wavemaker

Convert TL431 to TLVH431 (Pspice)

What modifications are needed to convert C. Bassos TL431 Pspice model to a TLVH431 model? I tried the obvious switching...
4 comments posted 17yrs
posted by spamme
4 comments posted 17yrs posted by spamme

need PADS Work V6.0 dongle

In relocating to Tampa, I lost the security key for this legacy software, which many years ago stopped being supported...
0 comments posted 17yrs
posted by johng52113
0 comments posted 17yrs posted by johng52113

How to set up a 1:1 transformer model?

I draw a transformer simultion with spice. when I chang ratio from 10:1 to 1:1. I get the model as follow. .SUBCKT 1TO1...
1 comments posted 17yrs
posted by cnnihao
1 comments posted 17yrs posted by cnnihao

spice tutorial

can anyone tell me where can i get an online tutorial teaching the spice modelling syntax or all about modeling using sp...
2 comments posted 17yrs
posted by youu917
2 comments posted 17yrs posted by youu917

Customizable Toolbars

Suppose I wanted to add an extra toolbar to an existing program. Is there such a piece of software? ...Jim Thompson --...
4 comments posted 18yrs
posted by To-Email-Use-The-Envelope-Icon
4 comments posted 18yrs posted by To-Email-Use-The-Envelope-Icon

data interchange format for board layout?

Is there a data interchange format in the circuit board layout industry comparable to DXF in the mechanical CAD world?...
23 comments posted 18yrs
posted by larry
23 comments posted 18yrs posted by larry

Pcad version incompatibility?

Here is a question for all the pcad users out there. Now that that Altium has officially burried the product along with...
0 comments posted 18yrs
posted by no_spam_me2
0 comments posted 18yrs posted by no_spam_me2

Spice Model for PMT

Anyone have a Spice model for a photo-multiplier TUBE ?? ...Jim Thompson -- | James E.Thompson, P.E. | mens | | Analog...
8 comments posted 18yrs
posted by To-Email-Use-The-Envelope-Icon
8 comments posted 18yrs posted by To-Email-Use-The-Envelope-Icon

diode protection in battery charger circuit?

I am building a charger for large (20-40 AH) lead acid batteries to power kid-size electric cars. I'm using an L200CV v...
2 comments posted 18yrs
posted by ehsratcliffe
2 comments posted 18yrs posted by ehsratcliffe