Why should you use an inductor for energy storage?

Because the current flowing through the inductor cannot change instantaneously, using an inductor for energy storage provides a steady output current from the power supply. In addition, the inductor acts as a current-ripple filter. Let’s consider a quick example of how an inductor stores energy in an SMPS.

Why is inductance important in SMPS?

The inductance determines the rate of change of the current flowing through the inductor and the desired limits to the ripple current. Working through inductor characteristics for your circuit designs, especially when considering energy storage in SMPS, is a job best left for strong circuit design and analysis software.

How to calculate the energy stored in an inductor?

To calculate the energy stored in an inductor, follow these steps: get the inductance and current from the question. Square the current value and multiply it with the inductance. Find the half of the product to check the stored energy. What is the Energy Stored in an Inductor?

How does an inductor store energy?

Inductors Store Energy The magnetic field that surrounds an inductor stores energy as current flows through the field. If we slowly decrease the amount of current, the magnetic field begins to collapse and releases the energy and the inductor becomes a current source.

How does an inductor work?

As electric current flows through the inductor—a coil of wire wound around a central core—magnetic flux develops around the conductor. Although a simple coil of wire works as an inductor, tightly wrapping the coil around a core produces a much stronger magnetic force.

How does copper loss occur in a power inductor?

Copper loss occurs as the effective current flows through the resistance presented by the conductor winding. Inductors experience core loss because the reluctance of the core material opposes the changing flux density caused by the changing current in a power inductor. What Can We Accomplish with All This Stored Energy?