Calculating B of inductor operating in continuous conduction mode?

[hobbs125]

Hello everyone,

I am working on a coil design and have a question.

The coil is meant to operate in continuous conduction mode, so the current waveform is a ramp waveform.


B=V*t / N*Ae

When calculating V*t do I use 1/2 t (since the current only increases for the first half of the ramp waveform) or do I use the full length of t?

 

[jim hardy]

Hello everyone,

I am working on a coil design and have a question.

The coil is meant to operate in continuous conduction mode, so the current waveform is a ramp waveform.


B=V*t / N*Ae

When calculating V*t do I use 1/2 t (since the current only increases for the first half of the ramp waveform) or do I use the full length of t?

Flux and current are in proportion ;
...so just multiply current by a constant ?


but probably I misunderstand.