Hi,
Can some one please tell me what are the advantages and disadvantages of using a toroid inductor(hand made) for the inductor of buck or boost converter?
Both kinds will work (but select the grade/material for the purpose and frequency).
A few examples of the pros and cons...
Toroid:Advantages: Cheap to produce. Magnetic field closed in he core.
Disadvantages: Laborious to wind. If material and frequency isn't carefully selected, you risk core saturation (which is
bad)
Pot cores and similar:Advantages: Can be had with an air gap (or be gapped with paper/plastic sheet to avoid saturation - some gapped cores have an adjustment screw to fine tune the gap). Easy to wind (hence cheaper and easily automated). Comes in various shapes and in lots of different A
L values.
Disadvantages: Price. Comes in two or more parts that need to be held togeth with special clips or glue.
In your photo #2, There's one pot core (middle one in the top row). Middle row leftmost is a "pigs snout" used for RF transformers and right under that is something I cannot determine; either a licorice with a pin through the middle, or a ready wound coil maybe
The rest of them seems to be nothing but shielded versions of otherwise open cores.
The above is not preemptive, but since it's
your school work, I should leave a little to you
