LTspice

Q&A

by MTarr LTspice

Started 16 hours ago

18 0 0

Not Answered
LTSpice installs but does not run (Win11Pro, HP845 laptop) 0
Not Answered

Hi, I have an HP laptop model 845 running Windows 11 Pro. I am trying to replace an older LTSpice installation (v17.11) with v26.0.2. It installs using Powershell (admin level), but will not run after install. I used the verbose option as suggested...

software 26.0.2 LT Spice LT S

18 0 0
by eewiz LTspice

Latest 17 hours ago by eewiz

135 4 0

Answered
Encountered an improper argument. When saving any symbol file. 0
Answered

Hello All: Any time I save a symbol I get this: I have received this message in the past. It was eliminated then by rebooting my win10 box. It has now returned and I would like to determine the cause. Review, after a save produces the error message, shows...

software 26.0.1 LTspice

135 4 0
by ogura.isao@sankyosha.co.jp LTspice

Latest 1 day ago by MStokowski
58 2 0
Suggested Answer
Can I simulate LT83402 output noise spectrum density using tran and FFT? 0
Suggested Answer

I ran LTspice trasient simulation (.tran 0 1m 900u 0.1n) using .options plotwindsize=0 numdigit=15 trtol=0.1 chgtol=1e-16 vntol=1e-9. And applied FFT to transient simulation output result. However noise flower in FFT plot is much higher than I expected...

software LT83402 LTspice version 26.0.1 LTspice switching regulators Show More

58 2 0
by shiba183 LTspice

Latest 1 day ago by MStokowski
141 3 0
Answered
s-parameter using LTspice 0
Answered

Hello My customer want to get S-parameter (.s2p) for LTC6419, but there are no S-parameter. So, I will try to have s2p file from LTspice simulation using .NET command. However, I don't know the syntax in case of differential output, not single end...

LTC6419 simulation amplifiers software LTspice LTspice ver 24.1.8 LTspice model Show More

141 3 0
by bwolfe58 LTspice

Latest 2 days ago by MStokowski
42 1 0
Not Answered
LT3045 Simulation model 0
Not Answered

Do the LT3045 model reasonably simulate output noise in an LTspice .noise simulation? LT3045.asc

software 26.0.2 LT Spice lt3045 LDO Linear Regulators Show More

42 1 0
by Steve42 LTspice

Latest 2 days ago by MStokowski
1354 20 0
Answered
LTSpice won't work on my brand new windows 11 pro machine 0
Answered

Hi LTSpice won't work on my brand new windows 11 pro machine. Program installs correctly and when I select LTspice updates it works and says "up to date" but when I try to start it even using "run as administrator nothing happens and I get no error message...

LTSpice 26.0.1.0 software LTspice software problems LT Spice Show More

1354 20 0
by eewiz LTspice

Latest 2 days ago by MStokowski
462 16 0
Answered
Comment Out a Schematic 0
Answered

Hello All: Is there a way to comment out a schematic? I have a hierarchical schematic design, a dozen pages and 4 levels of hierarchy. That all works just fine. I want to create another page to place on my top level schematic. This page will store text...

software LTspice 26.0.1 LTspice

462 16 0
by OliverLiu LTspice

Latest 2 days ago by MStokowski
40 1 0
Not Answered
why cant select any components on schematic with mouse left button. 0
Not Answered

I can't select components on the schematic using the mouse, but I can select them using the buttons in the toolbar, and installing software from scratch doesn't work either. win11 system. thanks everyone help me.

software 26.0.2 LTspice

40 1 0
by GregB2026 LTspice

Latest 5 days ago by GregB2026

204 3 0

Not Answered
NE555 model RST not working 0
Not Answered

I'm using the NE555 model in a mono-stable configuration. The datasheet for the NE555 suggests that placing a LOW level on the RST pin will immediately reset the output to LOW and (discharge the RC network). However, when I place a LOW on the model's...

software NE555 26.0.1 LTspice LTspice model Show More

204 3 0
by AndyI LTspice

Latest 5 days ago by MStokowski
114 2 0
Not Answered
Bad LTspice models for MAX4051 and MAX4053 0
Not Answered

The LTspice models for MAX4051 and MAX4053 are bad. They fail to function (the simulated part goes DEAD) when either the positive supply voltage is outside of the rather narrow range 4.5 to 5.5 volts, or when the negative supply voltage is outside -4...

software 26 switches and multiplexers LTspice model model library Analog Switches & Multiplexers switches/multiplexers Show More

114 2 0
by AntonyTheodorakis LTspice

Latest 8 days ago by MStokowski
236 7 0
Not Answered
Inability to simulate a thyristorized circuit. Simulator slows down into fempto-second/second speed, (practically stops). 0
Not Answered

1731.PROJECT.zip An inability to solve the included circuit is encountered. Ltspice make some steps, and after some time the time-step is reduced into fs/s range. Any solution?

software 26.0.1 LTspice

236 7 0
by Vol88 LTspice

Latest 11 days ago by MStokowski
346 2 0
Answered
LTspice half-bridge simulation works with ideal switch but fails with two MOSFET models 0
Answered

Hello, I am trying to simulate a half-bridge in LTspice. My schematic works correctly when I use one MOSFET model and one ideal switch , but its not working when I replace the ideal switch with a second MOSFET model . I don’t see what is wrong with...

346 2 0
by itsko LTspice

Latest 12 days ago by itsko

286 6 0

Not Answered
Passive symbols: Similar sizing 0
Not Answered

If there is ever a consideration to redraw the global symbols, (or double the grid resolution), could the common components such as RLC passives + diodes be drawn to the same dimensions and the same positions for default text (refDes and value)?

software 26.0.1 rlc symbol LTspice library Show More

286 6 0
by RZetopan LTspice

Latest 12 days ago by MStokowski
197 3 0
Answered
Bug report in latest LTSpice Version (X64) 26.0.1 0
Answered

.PARAM GBr=100 (Starting definition) .PARAM Gk=1/GBr^2 actually results in Gk=GBr^2. Apparently, exponentiation overrides the previous division completely, even cancelling it out! .PARAM Gk=(1/GBr)^2 works correctly, as does Gk=1/GBr/GBr,...

(x64) 26.0.1 software LTspice

197 3 0
by SpiceRob LTspice

Latest 17 days ago by MStokowski
247 5 0
Not Answered
Battery simulation taking too long 0
Not Answered

Trying to simulate how a battery behaves with pulses, like from LoRa TX current in extreme case. I want to see how it unloads over 1h but the spice is taking way too long. Any help on the tran or spice setting?

software 26.0.1

247 5 0

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Q&A

Not Answered
LTSpice installs but does not run (Win11Pro, HP845 laptop) 0
Not Answered

Answered
Encountered an improper argument. When saving any symbol file. 0
Answered

Suggested Answer
Can I simulate LT83402 output noise spectrum density using tran and FFT? 0
Suggested Answer

Answered
s-parameter using LTspice 0
Answered

Not Answered
LT3045 Simulation model 0
Not Answered

Answered
LTSpice won't work on my brand new windows 11 pro machine 0
Answered

Answered
Comment Out a Schematic 0
Answered

Not Answered
why cant select any components on schematic with mouse left button. 0
Not Answered

Not Answered
NE555 model RST not working 0
Not Answered

Not Answered
Bad LTspice models for MAX4051 and MAX4053 0
Not Answered

Not Answered
Inability to simulate a thyristorized circuit. Simulator slows down into fempto-second/second speed, (practically stops). 0
Not Answered

Answered
LTspice half-bridge simulation works with ideal switch but fails with two MOSFET models 0
Answered

Not Answered
Passive symbols: Similar sizing 0
Not Answered

Answered
Bug report in latest LTSpice Version (X64) 26.0.1 0
Answered

Not Answered
Battery simulation taking too long 0
Not Answered

Q&A

Not Answered LTSpice installs but does not run (Win11Pro, HP845 laptop) 0 Not Answered

Answered Encountered an improper argument. When saving any symbol file. 0 Answered

Suggested Answer Can I simulate LT83402 output noise spectrum density using tran and FFT? 0 Suggested Answer

Answered s-parameter using LTspice 0 Answered

Not Answered LT3045 Simulation model 0 Not Answered

Answered LTSpice won't work on my brand new windows 11 pro machine 0 Answered

Answered Comment Out a Schematic 0 Answered

Not Answered why cant select any components on schematic with mouse left button. 0 Not Answered

Not Answered NE555 model RST not working 0 Not Answered

Not Answered Bad LTspice models for MAX4051 and MAX4053 0 Not Answered

Not Answered Inability to simulate a thyristorized circuit. Simulator slows down into fempto-second/second speed, (practically stops). 0 Not Answered

Answered LTspice half-bridge simulation works with ideal switch but fails with two MOSFET models 0 Answered

Not Answered Passive symbols: Similar sizing 0 Not Answered

Answered Bug report in latest LTSpice Version (X64) 26.0.1 0 Answered

Not Answered Battery simulation taking too long 0 Not Answered

Not Answered
LTSpice installs but does not run (Win11Pro, HP845 laptop) 0
Not Answered

Answered
Encountered an improper argument. When saving any symbol file. 0
Answered

Suggested Answer
Can I simulate LT83402 output noise spectrum density using tran and FFT? 0
Suggested Answer

Answered
s-parameter using LTspice 0
Answered

Not Answered
LT3045 Simulation model 0
Not Answered

Answered
LTSpice won't work on my brand new windows 11 pro machine 0
Answered

Answered
Comment Out a Schematic 0
Answered

Not Answered
why cant select any components on schematic with mouse left button. 0
Not Answered

Not Answered
NE555 model RST not working 0
Not Answered

Not Answered
Bad LTspice models for MAX4051 and MAX4053 0
Not Answered

Not Answered
Inability to simulate a thyristorized circuit. Simulator slows down into fempto-second/second speed, (practically stops). 0
Not Answered

Answered
LTspice half-bridge simulation works with ideal switch but fails with two MOSFET models 0
Answered

Not Answered
Passive symbols: Similar sizing 0
Not Answered

Answered
Bug report in latest LTSpice Version (X64) 26.0.1 0
Answered

Not Answered
Battery simulation taking too long 0
Not Answered