Energy storage inductor magnetic materials

How a Magnetic Inductor is made?

A. Magnetic Core Choices Inductors are made, by winding copper wire around magnetic cores. The cores usually contain an air gap purposefully cut into them to improve energy storage. Since the role of an inductor is to store energy, we will usually have one or more air gaps in the magnetic flux path of the core employed for an inductor.

What is the rate of energy storage in a Magnetic Inductor?

Thus, the power delivered to the inductor p = v *i is also zero, which means that the rate of energy storage is zero as well. Therefore, the energy is only stored inside the inductor before its current reaches its maximum steady-state value, Im. After the current becomes constant, the energy within the magnetic becomes constant as well.

Why are soft magnetic materials important for power inductors?

In various power inductors for both power generation and conversion in electric power and electronics industries, soft magnetic materials play important roles , , , . In this case, the development of soft magnetic materials for power inductors is closely related to the progress of the circuit topologies and power semiconductors.

What are some common hazards related to the energy stored in inductors?

Some common hazards related to the energy stored in inductors are as follows: When an inductive circuit is completed, the inductor begins storing energy in its magnetic fields. When the same circuit is broken, the energy in the magnetic field is quickly reconverted into electrical energy.

How to achieve high inductance performance of soft magnetic materials?

As mentioned above, to obtain high inductance performance of the inductor, the soft magnetic materials should exhibit desired properties, including high permeability μ, high saturation magnetization Bs, low coercivity Hc, and high electrical resistivity ρ.

What is a high temperature magnetic inductors?

High Tc of soft magnetic materials is beneficial to obtaining great high-temperature performance of inductors. Generally, the inductors can be classified as three types according to the maximum working temperature, i.e., 125 °C for civil applications, 155 °C for vehicles, and 180 °C for aerospace.