Is there a transformer in LTspice?

By Lexie Tanner 5 years ago

Is there a transformer in LTspice?

To add a transformer to your LTSpice/SwitcherCAD III model, simply draw two inductors and add a “K” statement to couple the inductors. Setting the turns ratio of the transformer is simply a matter of choosing the right inductor values. Remember, the inductance is proportional to the square of the turns ratio.

What is K in LTspice?

Mutual Inductance is designated in a SPICE netlist by beginning the first word (label) of a new line with the letter “K”. It is unique among the basic circuit elements in LTspice in that a schematic symbol is not used to represented it.

What is the transformer equation?

Vp=−NpΔΦΔt V p = − N p Δ Φ Δ t . This is known as the transformer equation, and it simply states that the ratio of the secondary to primary voltages in a transformer equals the ratio of the number of loops in their coils.

How do you use an inductor in PSpice?

Answer

  1. Create pspice project.
  2. Place > Place Component > Modeling Applications > Passives > Inductor.
  3. Add required values to below window.
  4. Once valid values are added, click on Place to place an Inductor on schematic page.

How do you use Kbreak in PSpice?

To define your own CORE model parameters, do the following steps:

  1. Place KBREAK core symbol.
  2. Select Edit > Edit PSpice Model.
  3. Enter the model parameters and a new model name, if desired. The default model name will be kbreak. The model will be saved to a local library named .lib.

What is RSER in LTspice?

This Rser allows LTspice IV to integrate the inductance as a Norton equivalent circuit instead of Thevenin equivalent in order to reduce the size of the circuit’s linearized matrix. If you don’t want LTspice to introduce this minimum resistance, you must explicitly set Rser=0 for that inductor.

What is a spice directive?

From LTwiki-Wiki for LTspice. In LTspice a SPICE Directive is text placed onto the schematic that passes directly into the netlist. It may be entered either as a single line or as a block of several lines of text.

How does a center tap transformer work?

When an additional wire is connected across the exact middle point of the secondary winding of a transformer, it is called a center tapped transformer. The wire is adjusted such that it falls in the exact middle point of the secondary winding and is thus at zero volts, forming the neutral point for the winding.