@ltspice

  1. C

    Error importing external component in LTspice.

    So, recently i have been trying to import IR2110 driver IC for simulation, i found this PSPICE model from the infineon website, i did the following steps, i) open the .lib file of the component in LTspice ii) click on .SUBCKT and "create symbol" option but when i get all the connections right, i...
  2. C

    Unknown Subcircuit After I downloaded a MOSFET. asy file in the directive from LTspice simulation

    Hi I have a strange question. I downloaded a MOSFET LTspice model (.asy) from official website and saved it in the directive. However, It still shows "unknown subcircuit." If I use ideal NMOS4, the simulation works. Could someone help me with why it happens and how to deal with it? I attached...
  3. F

    LTspice: using conditional statements to switch ON & OFF voltage–controlled switches in a resonance circuit

    Hi, An initially charged capacitor in a resonance circuit undergoes periodic voltage reversal (blue line), as shown below: A possible circuit to address this problem uses 2 capacitor banks & switch modules, as shown: C₁ and C₂ represent metallized film capacitor banks of equal capacitance...
  4. H

    Constant Current Source driving a capacitor :LTSPICE Simulation Error

    I know that when a constant current source is driving a capacitor the output will be a ramp. I tried to simulate the same in LTSPICE and got this error "ERROR: Node N001 is floating and connected to current source I1". My circuit is given below.May I know where I went wrong.
  5. D

    LTspice giving weird results in simulation of Phase Shifted Full Bridge Converter.

    I am trying to simulate a Phase shifted full bridge converter in LTspice. I had already simulated it in matlab simulink and obtained the desired results, but I am redoing it in LTspice to include the effects of non-ideal components. In order to avoid the pulse generation, I imported the...
  6. D

    Need help regarding opening .asc file in LTspice.

    I have obtained a LTspice file from the net, its a .asc file but its in the form of the following text. I cannot for the life of me figure out if there's a way to convert this to schematic and run it as a simulation file. Please help. Version 4 SHEET 1 1180 680 WIRE -352 -288 -416 -288 WIRE...
  7. A

    Simulating inductor with double transistor switch in LT Spice, getting unexpected voltage output. Problem with model?

    Hello! I'm using a SIMFET model as switches and ideal diode models in my circuit. My specifications are t0=40ms and T=100ms. I expect the voltage across the inductor to be Vcc=75V from 0 < t < t0, and for it to be -Vcc when the transistors are off between t0 < t < T (This is the theory...
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