150UH inductor Supply

[birgitay]

I've had 150 oh coil winding together with the core.
Ei33 - rm14 - computer smps transformers. None of them worked well. 150 uh which inductance value should I use?

 

[Osvaldo de Banfield]

Which are the voltage, the current and the frequency the choke must manage?

 

[birgitay]

I could not measure the frequency of the circuit had run.

 

[Osvaldo de Banfield]

It is a very important data, because the kind or type of core to be used depends on frequency. As a initial test, try the drum cores from (Mainly) PC CRT monitors, as they are open magnetic circuit with large air gap, it will not saturate.

I use them in my intra-PC class D audio amplifier.

 

[birgitay]

the cores you are talking about will not be in my circuit. Rm14 air gap core. There was 3MM space. The magnetic flux is going to air and the coil is there when the wire is short circuit Mosfets - IR2110 is on fire

 

[Osvaldo de Banfield]

Sorry, I can't understand the last sentences.

 

[birgitay]

none of them could not reach 150uh. There was no one.

 

[Osvaldo de Banfield]

You NEED to know the frequency for choice the wright core for your inductor.

 

[birgitay]

Measure the door sign between 62khz-400khz. Peak value 400khz

 

[birgitay]

62khz - 400khz frequency search. Amidon or any other brand can work at these frequencies which may be the inductor of 150uh?