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What are the three factors that are essential to determine the induced voltage of an inductor?
The size of the voltage can be varied by three factors:
- The size of the magnetic field. The more flux lines there are, the more flux lines there are for the conductor to cut.
- The active length of the conductor.
- The speed at which the conductor passes through the field.
What four factors affect the inductance of a coil?
Following factors affect the inductance in a circuit:
- Number of Wire Turns in the Coil. The greater the number of turns of wire in the coil, the greater the inductance.
- Coil Area. The greater the coil area, the greater the inductance.
- Core Material.
- Coil Length.
How to choose an inductor for an application?
Understanding the application requirements will help an engineer to choose the right type of inductor. RF Applications: If you are choosing an inductor for an RF application, then there are two aspects you need to consider. First is the quality or Q factor. This refers to how the inductor’s resistance value. A high value Q is always preferred.
Why are inductors designed to vary with time?
If an inductor is designed so that any one of these factors may be varied at will, its inductance will correspondingly vary. Variable inductors are usually made by providing a way to vary the number of wire turns in use at any given time, or by varying the core material (a sliding core that can be moved in and out of the coil).
What are the four factors that affect inductance?
There are four basic factors of inductor construction determining the amount of inductance created. These factors all dictate inductance by affecting how much magnetic field flux will develop for a given amount of magnetic field force (current through the inductor’s wire coil): Number of Wire Wraps, or “Turns” in the Coil
How to select the correct inductors for switching regulators?
It is normally in the order of 10-500mVpk-pk. Selecting the correct ripple current also affects the size of the inductor and the output capacitor. This capacitor must have a sufficiently high ripple current rating, or it overheats and dries out.