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Fixed Inductors

Fixed inductors are components used in electrical circuits to store magnetic energy by converting electrical energy into magnetic field around their apertures. They belong to a class of electronic components called Passive Components, along with capacitors, resistors, diodes, and transistors. They are used extensively in different types of electrical and electronic devices such as DC/AC power supplies, signal and communication amplifiers, radio receivers and transmitters, digital logic circuits and many other applications.

LQH2HPN220MDRL Application Field and Working Principle

The LQH2HPN220MDRL device is a fixed inductor manufactured by Panasonic. It is a low-loss, high-current inductor specifically designed to be used in switching power supplies. It is meant to be used for high-density, low-noise, and high-efficiency applications. This device has a ferrite core with a DCR of 0.16 Ohms at 25C and an inductance of 220µH at 25C. It has a rated current of 8.8 Amps, a saturation current of 10.2 Amps, and an operating temperature range from 0 to 70 ℃.

The working principle of this device is based on the property of induction, whereby a coil or wire exposed to a changing magnetic field induces a current within it. This is the basic concept of an inductor, in which current is constantly flowing, thus producing a strong magnetic field. As the current flowing through the coil is changing, this causes a back-emf, which is an opposing force that opposes changes in current. When a component is connected in parallel with the coil and a current flows through it, this causes the voltage across the coil to increase. The result is an induced current in the opposite direction. This is why an inductor is used in electrical circuits to store energy.

The LQH2HPN220MDRL is an ideal device for use in power supply circuits, for high-efficiency, high-density, and low-noise applications. It operates by converting electrical energy into magnetic field around its apertures, storing energy in its core, and then releasing the energy as a result of induced current. This device offers excellent performance in high-frequency circuit applications, as it has low DC resistance and low ESR values. It also has high Q factor, meaning it can produce higher inductance values at higher frequencies.

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