Inductors
- From: "Myauk" <aungkokothet@xxxxxxxxx>
- Date: 24 Oct 2006 17:48:34 -0700
According to my knowledge, a practical inductor is composed of an ideal
inductance in serires with the effective resistance of that inductor.
Skin effect increases effective resistance with the increase in
operating frequency.
For receiver ckt, the selectivity is calculated by 2*pi*f L/r, which
means the selectivity depends on frequency as well as effective
resistance and inductance. So the design of an inductor depends on the
required selectivity and frequency as well as consideration of
effective resistance.
For a SMPS inductor design, I learned that the inductance for forward
converter is calculated by (Vin-Vo) Ton max/ I min.
I need to understand more about this.
How come the inductance depends on the input and output voltage
difference, the maximum on time and the minimum current drawn.
Are the equations I know right or wrong?
Where can I find these practical equations for calculations as well as
descriptions on how they are derived from the fundamental theories of
Electricity and Electronics?
.
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