Questions tagged [ltspice]
Anything related to LTspice. LTspice is a SPICE simulation, schematic capture, and waveform viewer program from Linear Technology. LTspice is freeware with a very liberal license, it is lightweight, and isn't crippled in any way.
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questions with no upvoted or accepted answers
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Correctly Using the Chan model in LTSpice
I am trying to use the Chan model to better simulate a transformer in my design. When I am making an equivalent transformer circuit, where does the Chan inductor go?
On the LTWiki it is implied ...
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D-Class Amplifier Design Verification
I have an internship coming up working with comparators and amplifiers, so I wanted to take on a side project involving both of those components. Designing a D-Class amplifier seemed like a great way ...
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Importing BJT model
I am trying to import a model into LTspice for HFA3046 transistor but LTspice doesn't seem to recognize this model. Here is the text for the model from the website:
https://www.renesas.com/us/en/...
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Creating an LTspice model of a MOSFET not in the standard library
I want to model this power MOSFET in LTspice.
I went into the standard library and noticed that all the MOSFETs there are created by VDMOS(...). Reading up on this command in this resource, I noticed ...
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How do I find or calculate BJT parameters for LTspice?
A typical entry line in LTspice's Standard.bjt file contains, e.g.,
.model 2N4126 PNP(Is=1.41f Xti=3 Eg=1.11 Vaf=18.7 Bf=203.7 Ne=1.5 Ise=0 Ikf=80m Xtb=1.5 Br=4.924 Nc=2 Isc=0 Ikr=0 Rc=2.5 Cjc=9.728p ...
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Getting parameter from hierarchical block LTSpice
I know how to pass parameters into a block, but I can't figure out how to get parameters back out.
For example, I'm passing params into a block with:
Within the block, these parameters are used to ...
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Power amplifier simulation and real time experiment mismatch problem
Thanks in advance to anyone who will take the time to read my first post here.
At present, I am doing a simulation of a power amplifier in LTSPice. The schematic and relevant files are uploaded in a ...
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What's wrong with my input circuit? LTspice
I am designing my first power electronics board in LTspice to convert single phase AC to DC. This DC is fed to asymmetric bridge to drive an SR motor which is connected to a flywheel. This flywheel ...
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LTSpice Solar / photovoltaic simulation
I've been trying to simulate a solar cell with LTSpice to generate an I-V curve. The model I've been using is the simplified equivalent circuit model with a current source in parallel with a diode. ...
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LTspice: Is there any way to access .measure results from within a subcircuit?
I have a subcircuit in my LTspice schematic. It appears as a schematic block. Within the subcircuit's schematic there is a .MEASURE statement. How can I view the results of this .MEASURE statement ...
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Where should I take the measurement from to find the correct attenuation level of a resistive pi attenuator?
I am currently designing a resistive attenuator for an RF project I'm working on. I wanted to have several resistance combinations to obtain various attenuation levels (1-8 dBs). When I calculate the ...
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Can't get the required simulation waveform of a quasi-z source inverter using Si MOSFET
This is the circuit I'm trying to replicate, with the waveform:
I found it here.
This is my attempt at it, but the waveform does not match:
Update:
This is the waveform I got. How do I get it ...
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Simulation of transimpedance amplifier in LTspice
I am trying to simulate a circuit that is presented in a research paper by Dr Behzad Razavi. I am using LTspice for the simulation (please see the attached image and netlist for the circuit).
I am ...
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Gate capacitance vs gate voltage for a MOSFET in LTspice
How can I plot gate capacitance vs gate voltage in LTspice for a N-channel MOSFET?
I have to use AC analysis but I don't know how to do that? Can anyone explain it to me?
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Simulation of motor drive IC in SIMetrix/Simplis
I want to simulate a DC motor driver like MIC4606-1 in SIMetrix/SIMPLIS software. The microchip provided only the SIMetrix model of MIC4606-1( Transient model:
https://www.microchip.com/en-us/software-...
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