Lt Spice

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LTspice how to use

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  • KNL3183Microelectronics Introduction to LTspice

  • Basic Element Types in Spice

  • Pssive Elements

  • Independent Source Representation in Spice

  • Time-vaying signals in Spice

  • Time-vaying signals in Spice (cont )

  • Linear Dependent Sources

  • Main Analysis commands

  • Example 1: .op Spice command .opVin Vin 0 DC 1R1 Vin Vout 1kR2 Vout 0 2k.end**Spice Deck or Spice Command**

  • Example 2: .trans Spice command

  • Example 2: .trans Spice command (cont)** Circuit Description *** input signal sourceVi 1 0 sin (0V 10V 60Hz)* linear network R1 1 2 10OhmC1 2 0 2.65mF RL 3 0 10OhmE1 3 0 2 0 10

    ** Analysis request**Compute transient *response of circuit over *three full periods*(50ms) of the 60Hz sine-*wave input with 1 ms *sampling interval..trans 1ms 50m 0m 1m .end

  • Example 3: .trans Spice command (cont)

    Seating chart updates

    Check web for copies of HW#2 (and lots of helpful hints) and for slides from previous lectures and for a tutorial on sue

    Collect project proposals