Hi there,

Hopefully this can be simply answered.

Can somebody please tell me how inductance is measured when in a DC application?

I found a datasheet on an DC choke where they measure inductance based upon a DC current through the inductor.

Im aware of the formulas below but not sure how they arrive at this inductance value...

Xl = j2∏fL

and..

Vl(t) = di/dt L

So if they rate an inductance at 3H with test conditions of a Max voltage of 600VDC and 500mA how do they get that given di/dt is 0.

What would be the equivalent at 240V 500mA 50Hz?

Thanks in advance!

Hopefully this can be simply answered.

Can somebody please tell me how inductance is measured when in a DC application?

I found a datasheet on an DC choke where they measure inductance based upon a DC current through the inductor.

Im aware of the formulas below but not sure how they arrive at this inductance value...

Xl = j2∏fL

and..

Vl(t) = di/dt L

So if they rate an inductance at 3H with test conditions of a Max voltage of 600VDC and 500mA how do they get that given di/dt is 0.

What would be the equivalent at 240V 500mA 50Hz?

Thanks in advance!

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