## How do you use couple inductors in pspice?

To specify the parameters, double-click on a coupling symbol (on the K-in-a-box, not the attributes), and enter the reference designators for the coupled inductor as the values for Li (i=1,2,…,5). Set the value of the COUPLING attribute to the value of the coupling factor, K.

How do you connect two inductors 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. To add the directive, choose SPICE Directive from the Edit menu. This allows you to place text on the schematic that is included in the SPICE netlist.

### 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 coupled inductor?

Coupled Inductor: – A coupled inductor is an inductor with two or more windings on the same core which takes advantage of magnetic coupling to influence the behavior of each winding on the other. ▪ Transformer: – A magnetic device that transfers energy instantaneously through its magnetic field.

## How do you find the mutual inductance of two coils?

Because of this, we can write the mutual inductance between the two coils as: M12 = M21 = M. By cross-multiplying the two equations above, the mutual inductance, M that exists between the two coils can be expressed in terms of the self inductance of each coil.

What is coupling factor in transformer?

The quantity of total magnetic flux linked to another coil compared to total magnetic flux in a coil is known as the coefficient of coupling. It is defined as the ratio of the number of magnetic flux lines common between two coils (inductors) to the number of magnetic flux lines in a coil.

### What is a coupled inductor?

Coupled Inductor: – A coupled inductor is an inductor with two or more windings on the same core which takes advantage of magnetic coupling to influence the behavior of each winding on the other.

Why do we use coupled inductor?

From power distribution across large distances to radio transmissions, coupled inductors are used extensively in electrical applications. Their properties allow for increasing or decreasing voltage and current, transferring impedance through a circuit, and they can isolate two circuits from each other electrically.

## Is a coupled inductor a transformer?

An ideal transformer does not store energy. On the other hand, a coupled inductor is an inductor, and is designed to store a significant amount of energy in the core flux. Because of this, the core has a gap, either a discrete gap or a distributed one, like in a powdered iron core. Energy is stored mostly in the gap.

How do you find the mutual inductance of a series?

The inductance of series connected inductors is calculated as the sum of the individual inductances of each coil since the current change through each coil is same. V = L di/ dt. This means the total inductance of the series connection is the sum of individual inductances of all inductors.