Hi!
What is the maths for adding inductance together? I know there is a squared relationship between windings and inductance
L = (number of turns)^2 x constant
So I know that if I'm winding on a single core then 200 turns will give me 4 times the inductance of 100 turns. So, for example if I wound 2 x 100 mH I could either have them separate for 2 x 100 mH or in series I would get 400 mH.
But what happens if I have two separate inductors on separate cores and add them together in series.
Do I still get the square rule? So do 2 x 100 mH give me 400 mH or 200mH?
And is there a general rule for unequal inductors? I'm thinking about the Gyraf pultec filter in particular - 100 + 100 + 47 + 22 mH.
Many thanks - my brain is staring to smoke over this onw. I've had a look in AofE but found nothing that helped me.
Stewart
What is the maths for adding inductance together? I know there is a squared relationship between windings and inductance
L = (number of turns)^2 x constant
So I know that if I'm winding on a single core then 200 turns will give me 4 times the inductance of 100 turns. So, for example if I wound 2 x 100 mH I could either have them separate for 2 x 100 mH or in series I would get 400 mH.
But what happens if I have two separate inductors on separate cores and add them together in series.
Do I still get the square rule? So do 2 x 100 mH give me 400 mH or 200mH?
And is there a general rule for unequal inductors? I'm thinking about the Gyraf pultec filter in particular - 100 + 100 + 47 + 22 mH.
Many thanks - my brain is staring to smoke over this onw. I've had a look in AofE but found nothing that helped me.
Stewart