June 25, 2009

INDUCTOR

In real this how a inductor looks like

http://media.digikey.com/photos/AlfaMag%20Electronics%20Photos/SWC,%20SW260C%20C4%20SERIES.jpg
The circuit symbol of inductor is
http://www.phys.unsw.edu.au/PHYS1169/beilby/magnetism2_files/fig4.gif

Functions of inductor
the inductor (or) a reactor is a passive electrical component that can store energy in a magnetic field created by the electric current passed through it

How is it measured..??
the measure of inductors is designed in the unit called Henry

The value of inductors depends on what..??
an inductor with an inductance of 1 Henry produces an EMF of 1 volt when the current through the inductor changes at the rate of 1 ampere per second. The number of loops, the size of each loop, and the material it is wrapped around all affect the inductance.

How value is represented in inductor..??
The table below provides common Inductor values found in the Surface Mount [SMD] package.
Inductor Values are in uH [10-6 Henry]. These are preferred values.

SM Chip Inductor Values
- 0.010 0.100 1.0 10
- 0.012 0.12 1.2 12
- 0.015 0.15 1.5 15
0.0018 0.018 0.18 1.8 18
0.0022 0.022 0.22 2.2 22
0.0027 0.027 0.27 2.7 27
0.0033 0.033 0.33 3.3 33
0.0039 0.039 0.39 3.9 39
0.0047 0.047 0.47 4.7 47
0.0056 0.056 0.56 5.6 -
0.0068 0.068 0.68 6.8 -
0.0082 0.082 0.82 8.2 -
Inductors in series
Two inductors connected in series.
the value of inductions in series as L=L1+L2+...

capacitors in parallel

Two inductors connected in parallel.
the value of inductors in parallel as 1÷L = 1÷(L1+L2+...)

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Electronics is the study and use of electrical that operate by controlling the flow of electrons or other electrically charged particles in devices such as thermionic valves. and semiconductors. The pure study of such devices is considered as a branch of physics, while the design and construction electronic circuits to solve practical problems is called electronic engineering.

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