TUTORIAL - Example 1, Using Femm to Calculate Component Values of Simple Microstrip to use in LTspice/PSpice

Started by RobertMacy in sci.electronics.basics7 years ago 3 replies

I offer to share with you a TUTORIAL but don't know how to get it into your hands. The TUTORIAL is about 15kB, zipped, and describes the...

I offer to share with you a TUTORIAL but don't know how to get it into your hands. The TUTORIAL is about 15kB, zipped, and describes the step-by-step process of using FREE femm 4.2 to analyze a simple PCB structure to calculate values to then use in circuit simulation, LTspice/PSpice. The sequence can be modified for use in analyzing really complex structures, structures where th...


AN: New Spice Model Posted to my Website

Started by Jim Thompson in sci.electronics.basics7 years ago 1 reply

New Spice Model Posted to my Website: Every Spice Simulator has their own proprietary way of implementing digital functions... LTspice Digital...

New Spice Model Posted to my Website: Every Spice Simulator has their own proprietary way of implementing digital functions... LTspice Digital Primitives don't play on PSpice, PSpice Digital Primitives don't play on LTspice... neither play anywhere else. Thus I have rolled my own Spice Model for the venerable HC4538 one-shot that uses universal behavioral modeling for the digital elemen...


need help in designing circuit

Started by panfilero in sci.electronics.basics10 years ago 12 replies

Hello, I just finished creating a circuit, it's a drum machine, but I've done the whole thing on a solderless breadboard. I was wondering if...

Hello, I just finished creating a circuit, it's a drum machine, but I've done the whole thing on a solderless breadboard. I was wondering if anybody could give me any tips on how I could go about transferring my design onto a PCB. If anyone could reccomend any software or such that is good for this? I have a copy of PSPICE, but I'm not sure if that's mainly for simulations. I've seen the ...


Re: LTspice: X-Axis Variable

Started by Steve Wilson in sci.electronics.basics2 years ago

Jeroen Belleman wrote: > On 25/01/16 19:06, Jim Thompson wrote: > > In LTspice, is there a way to change the X-Axis variable? > > > > ...

Jeroen Belleman wrote: > On 25/01/16 19:06, Jim Thompson wrote: > > In LTspice, is there a way to change the X-Axis variable? > > > > In PSpice I can do a PWL simulation, then change the X-Axis variable > > (in Probe) to be a voltage within the circuit, thus displaying > > hysteresis. > > > > I can't find a similar function in LTspice. > > > >