All You Need To Know About Power Inductors | Miracle Electronics

1. All You Need To Know About Power Inductors | MiracleElectronics Power inductors are those elements that are used to reduce core losses in applications that require voltage conversion. They are also used to store energy, filter EMI noise, and provide lower signal loss in system design. An inductor can also be used in a magnetic field created by a tightly wound coil to receive or store electrical energy. It helps in maintaining a steady current in an electrical circuit with varying current or voltage. Inductors and transformers seem very familiar in visual and constructional sense, but they differ in their design and applications. whatever your choice, whether it is to select the best power inductors or power transformers in India, you can approach Miracle Electronicsfor all kinds of high quality electrical elements for residential, commercial, as well as industrialusage. Types of powerinductors There are various types of power inductors that can be categorized based upon multiple factors like dimension, DC resistance, nominal inductance, maximum rated current, tolerance, packaging, and shielding. Listed below are the most popular types of power inductorsavailable.

2. Air core inductor – This is an inductor that does not use a magnetic core made of ferromagnetic material. Instead, coils are wound on ceramic, plastic, or other non-magnetic materials with air inside the windings. These have comparatively lower inductance, but are used at high frequencies as they are free from energylosses. • Radio frequency inductor – At high frequencies, inductors have higher resistance and other losses, which reduces the Q factor of the circuit, thus broadening the bandwidth. Radio frequency inductors are those that have specialized construction techniques used to minimize the losses. In radio frequency inductors, the windings are limited to a single layer with turns spacedapart. • Ferromagnetic core inductor – As the name suggests, these are inductors made of a ferromagnetic core like iron or ferrite to increase inductance. However, the magnetic properties of the core material cause two main side effects, namely core losses and non-linearity, which alter the behaviour of the inductor. • Laminated core inductor – These low-frequency inductors made of laminated cores prevent eddy currents. The core is coated with an insulating layer, which prevents eddy currents between the sheets that it is made of. This property reduces the energy losses by reducing the area of theloop. • Ferrite-core inductor – These inductors have cores made of ferrite that is non- conductive; thus eddy current cannot flow within it. Soft ferrites are used that have low coercivity and low hysteresislosses. • Toroidal core inductor – These are inductors having doughnut-shaped ferrite cores that allow minimum magnetic flux to escape outside, thus radiating less electromagnetic interference. These cores can also be made of powdered iron or laminatedcores. • Applications of powerinductors • Power inductors are used for various applications based on certain technical characteristics like power supply, high current, high power, and surface mount power. Surface mount power inductors are used to store energy while EMI

3. currents are filtered with low loss inductance in application where voltage conversion is performed. The basic applications include those that need to filter EMI noise in AC inputs, or store energy in DC-DC converters, or filter low frequency ripple currentnoise. Selecting an appropriate power inductor While selecting a power inductor, you need to focus on the size, geometry, winding characteristics, and temperature capacity of the inductors you are willing to buy. Other factors include power levels for voltages and currents, and requirements for inductance and current. It is also important to base your selection upon the current in which the core saturates and exceeds the application’s peak inductor current. You can also select your power inductors by focusing on their tolerance, nominal inductance, and maximum ratedcurrent. For more details, please visit: MiracleElectronics