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Choke Design - Basic Questions

poynton

Member
2005-03-10 11:57 pm
UK
(My apologies to all if the answer can be found elsewhere. My connection times out on searches!)

Hi.

Is there any basic, easy formula / program where I can input required choke DC current, impedance and basic core dimensions etc.to give me the answer ?

Andy
 

palmas

Member
2007-06-25 5:25 pm
poynton said:
(My apologies to all if the answer can be found elsewhere. My connection times out on searches!)

Hi.

Is there any basic, easy formula / program where I can input required choke DC current, impedance and basic core dimensions etc.to give me the answer ?

Andy


Yes, there is one I use, made by Johan Heikkilä called "DC Filter Choke Designer".
You look it up in the web, it's quite good, although with some bugs regarding the character you use for decimal separation ("," or ".")
 

poobah

Member
2005-11-15 7:24 pm
Go to Magnetics Inc. website

they have a FREE calculator for their materials... but it can be applied to others.

Generally cores intended for inductor applications are specified by their "A sub L" value.... this is the number of milliHenries per thousand turns.

All this can be found on the Magnetics Inc. website... as well as the classical Armstrong Method for calculations.

:)