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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Is LTspice AC analysis trustworthy at RF when using low impedance sources?
I'm an amateur at circuit design but I've been reading a lot and trying my best. I've edited the question to try to make the main problem more coherent and add a simple schematic and plots.
My setup ...
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Troubleshooting Voltage Sensing Issues in Buck-Boost Chip Simulations
I performed a simulation on a buck-boost chip (LT8390). I understand that the sensing resistor placed between LSP and LSN is supposed to sense the differential voltage. This voltage is then amplified ...
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LTspice: how can I simulate this RLC? [closed]
I'm not sure on how I should add the voltage and the current
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Output of a stand-alone full wave rectifier is different from the one in the circuit in which it is implemented
I'm trying to simulate an evening lamp using a NE555 timer and a relay.
To do so, I'm stepping down the 230V AC household voltage to 16V by an RC circuit as shown.
Now, when I take a stand-alone ...
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Practical Implementation of A Two Quadrant Transconductance Analogue Multiplier [closed]
Currently cannot simulate a functional Two Quadrant Transconductance Analogue Multiplier.
Understood constraints:
Vx is small (Vx << Vt ~ 25mV)
Vy is greater than VBE(on)(0.6V) (a DC offset ...
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Dependent Source LTspice [closed]
How can I simulate the following circuit into LTspice? I cannot understand how the dependent sources will be represented.
user372355
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Getting "Too few nodes" error
While I am trying to simulate this LM5164Q buck converter IC exported from TI, I'm getting the too few nodes error. How to rectify it?
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What does Gain mean when LTSpice plots Gain vs Frequency in AC analysis?
I am trying to simulate the frequency response of a trans-impedance amplifier in LTspice, with a current source input, as shown below:
My question is when doing ac analysis, the gain that LTspice ...
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How to generate gaussian pulse train in LTspice
How can LTspice generate gaussian pulse train? Is there a way to use equations for that or it has to be done PWL way? Could not find an example in internet. Anybody has idea or experience with it?
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Bias Voltage affecting op-amp at 0v
This question is a follow-up from the setup described here
Recap: I am designing a circuit which is intended to map a signal in the 0-5V range to the 1.75-7.0V range. To do this I am using an LM317T ...
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Selecting appropriate Opamp for RRO applications
I am designing a circuit which is intended to map a signal in the 0-5V range to the 1.75-7.0V range. To do this I am using an LM317T voltage regulator in conjunction with a TLC2272 Rail-to-Rail opamp. ...
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Unexpected output distortion when driving MOSFETs with SPWM in LTspice
The first picture below is the circuit diagram. SPWM was used, a full bridge structure and bootstrap circuit was used for the high side MOSFETs.
Datasheet IXTH88N30P
The carrier signal is 10 kHz and ...
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Design of a BJT Translinear-Based Square-Rooting Circuit
I'm trying to make a simple sqrt circuit to act on an input voltage and provide an output voltage without using log and antilog amplifiers. I'm trying to base my design of the translinear combination ...
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LTSpice Unknown SPICE device type "N" [closed]
I try to use the model for the BFR106 transistor in LTSpice, which I got from here
https://www.infineon.com/cms/en/product/rf/rf-transistor/high-linearity-rf-transistors/bfr106/?tab=~%...
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Full wave bridge rectifier with Pi or T filter simulation won't converge
I'm designing a full wave bridge rectifier and want to compare a pi filter and T filter after the rectification. I intend to add a transformer at the input and a buck-boost converter on the output. ...
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