7447713121 Inductors, Coils, Chokes

Fixed Inductors

Fixed Inductors, also known as chokes, are inductance devices that have a static property, meaning that the value of the inductance remains constant. This is achieved by fixing the inductance value of the inductor so that a change in current will not cause a change in the inductance. This makes them a useful device to shape and limit current in circuits.

A fixed inductor is typically wired in series with the load, and its inductance determines the shape of the current-voltage characteristics. Examples of common applications are: filtering out alternating frequencies, voltage drop compensation, impedance matching, and reducing noise levels. The most common type of fixed inductor is the chock coil, which can have various numbers of turns, or coils, dependent on the inductance value required.

The working principle of a fixed inductor is based on Faraday\'s Law of Induction. This states that a current passing through a conductor creates a magnetic field in the conductor. When the current changes, a voltage will be induced in the conductor. This voltage is proportional to the rate of change of the current. In a fixed inductor, the voltage created by the change in current opposes the current passing through the inductor, causing a drop in current.

Fixed inductors are available from a variety of manufacturers, both as individual components and as part of complete circuits. Depending on the application, they can have a variety of different form factors to allow for different levels of current to pass through them. In addition, some manufacturers also offer custom-designed fixed inductors to meet specific requirements.

Fixed inductors are widely used in a variety of applications, such as AC-DC conversion, power supplies, and audio circuits. They can also be used to create magnetic shields, which can be used to reduce the effects of electromagnetic interference. In addition to their primary use as current limiters and filters, fixed inductors are also used in many other applications, such as voltage regulation and harmonic suppression.

Fixed inductors are an essential component in many electronic and electrical systems, such as TVs, computers, and mobile phones. They are typically available in a variety of sizes, configurations, and inductance ranges, so they can be tailored to a wide range of applications. They are also relatively inexpensive, meaning that they can be used in large volumes, making them a cost-effective solution for a variety of different projects.