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. > > > >


74HC4046 Model Development

Started by Jim Thompson in sci.electronics.basics10 years ago 23 replies

I have been notified by Helmut Sennewald that the LTspice encryption process hides the node sequence. So please...

I have been notified by Helmut Sennewald that the LTspice encryption process hides the node sequence. So please revisit... http://www.analog-innovations.com/SED/HC4046_SUB.zip for a corrected version. This is just the VCO portion for now, and just the variable part; suitable only for LTspice. Please try it out and let me know your comments, etc. Since I'm new to working with LTsp...


LTSpice

Started by Michael Robinson in sci.electronics.basics11 years ago 3 replies

I need to simulate a circuit with an lm393 comparator in it. I went to the yahoo group and got a file called lm393_st.txt. I renamed it...

I need to simulate a circuit with an lm393 comparator in it. I went to the yahoo group and got a file called lm393_st.txt. I renamed it lm393.sub and put it in the sub folder. Then I drew my circuit using a universal op amp symbol, which I named lm393. LTSpice doesn't recognize it, with or without an include statement. What do I do? --------------------------------------- Poste...


LTspice Seminar in Phoenix

Started by Jim Thompson in sci.electronics.basics8 years ago 15 replies

I don't know how many lurkers here are in the vicinity of Phoenix, but I will be attending the LTspice Seminar... Tuesday, November 4, 2014...

I don't know how many lurkers here are in the vicinity of Phoenix, but I will be attending the LTspice Seminar... Tuesday, November 4, 2014 8:00 a.m. - 2:00 p.m. Phoenix, AZ Doubletree by Hilton Hotel 2100 S. Priest Drive Tempe, AZ 85282 Tel: 1-480-967-1441) Perhaps some would like to join me after the seminar and tip a few ;-) Register here:


Mixed mode simulation in FEMM/LTspice

Started by Nina Volodina in sci.electronics.basics5 years ago 1 reply

Please point me on some tutorial on using FEMM and LTspice in couple to do mixed-mode gauss simulation/optimization (magneto-mechanical @ FEMM +...

Please point me on some tutorial on using FEMM and LTspice in couple to do mixed-mode gauss simulation/optimization (magneto-mechanical @ FEMM + electrical processes @ SPICE with data interchange between sim ticks). PS: Does FEMM supports CUDA ?


Temperature compensation in LTSpice?

Started by Bill Bowden in sci.electronics.basics10 years ago 5 replies

Is it possible to simulate circuit performance using LTSpice under different temperature conditions? Say you have a single NPN transistor with...

Is it possible to simulate circuit performance using LTSpice under different temperature conditions? Say you have a single NPN transistor with grounded emitter and a collector load and a resistor from base to collector so the collector voltage is about half the supply voltage. I understand the result would depend on the HFE of the transistor, temperature, and maybe not very stable. Just wonde...


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...


New LTspice Model Posted

Started by Jim Thompson in sci.electronics.basics7 years ago 3 replies

See AD790_JT.zip on the Device Models & Subcircuits Page of my website: Behavioral model based on the datasheet only. Comments most...

See AD790_JT.zip on the Device Models & Subcircuits Page of my website: Behavioral model based on the datasheet only. Comments most welcome. Please report any issues. ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovations |


Zero Cross Detection circuit for review

Started by Douglas Beeson in sci.electronics.basics8 years ago 20 replies

Hello all, I'm back again with an audio zero-cross detection circuit that I have desig= ned based on valuable feedback from some of you...

Hello all, I'm back again with an audio zero-cross detection circuit that I have desig= ned based on valuable feedback from some of you (notably Jim Thompson and J= ohn Fields). I am trying to gate an audio signal while avoiding clicks as i= t switches on and off. I'm submitting the LTSpice file here for your comments and also to ask why = one thing does not seem to be working as intende...


Audio Amp Crossover Distortion?

Started by Bill Bowden in sci.electronics.basics11 years ago 82 replies

I see excessive crossover distortion with this audio amp not shown with LTspice. It simulates ok, but the wired circuit produces about a 50uS...

I see excessive crossover distortion with this audio amp not shown with LTspice. It simulates ok, but the wired circuit produces about a 50uS dead time step as the signal crosses the mid point. I tried increasing the bias with no help. Both inputs to the op-amp look good with no distortion. Any idea what is going on? Version 4 SHEET 1 880 1108 WIRE -128 80 -128 48 WIRE -128 80 -352 80 W...


AN: New Spice Model Posted to my Website... MC33161 Universal Voltage Monitor

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

New Spice Model Posted to my Website: See MC33161_JT.zip (Universal Voltage Monitor) on the Device Models & Subcircuits Page of my website. ...

New Spice Model Posted to my Website: See MC33161_JT.zip (Universal Voltage Monitor) on the Device Models & Subcircuits Page of my website. (Also see DigitalPrimitives.zip for the digital details.) This is a SWAG based ONLY on the datasheet. Please direct all questions/comments/error-reporting via my website or via the LTspice List... S.E.D is no longer suitable for technical discuss...