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Results tagged with inductor
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user 740
An inductor is a two-terminal passive device that stores energy in a magnetic field.
17
votes
Accepted
How important is saturation current for an inductor?
What they're telling you with the saturation current is that above 1.6A, the core can't take any more magnetic flux, and this translates into a change in the effective inductance when the current gets …
- 19.3k
18
votes
Inductor vs a capacitor
The basic electrical property of a capacitor is that the voltage across a capacitor cannot change instantaneously, whereas the basic property of inductance is that the current through an inductor cannot … Meanwhile if you put an AC voltage across an inductor, the current will lag behind the voltage by a phase angle that depends on the inductance and the frequency - inductors inhibit changes in current. …
- 19.3k
8
votes
What do phase dots on an inductor mean?
The dots just indicate the polarity of the windings on the schematic.
Currents entering on the dotted ends of the windings will produce magnetic flux in the same direction, whereas if you have curren …
- 19.3k
11
votes
Can you store energy in an inductor and use it later?
Problem is that energy in an inductor is due to current, and most all practical conductors have some resistance; this means that energy is continuously drained into heating the coil itself though I^2R …
- 19.3k