| T O P I C R E V I E W |
| namzer0 |
Posted - Nov 16 2009 : 9:42:06 PM
Is there any fixed value for a ferrite transformer's core?
I mean permeability value?
like in here:
http://img.alibaba.com/photo/251218486/ferrite_transformers.jpg
I'm having problem computing for inductance when it involves cores.
Its easy to compute when its air core.
some site considers 98% ferrite, 95%, element, etc... with different values...
getting confused with it and with my ferrites...
Thanks!
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| 6 L A T E S T R E P L I E S (Newest First) |
| namzer0 |
Posted - Nov 23 2009 : 06:11:21 AM
Aw, do you think a value of 100 will be ok? I really don't know what range of values do ferrites have... |
| namzer0 |
Posted - Nov 19 2009 : 02:11:05 AM
quote:
Originally posted by audioguru
Then you need to guess about its spec's.
no Idea about how should I estimate...
1 will be my favorite value ^_^
this one might be easy to estimate... from your AM receiver
http://www.angelfire.com/electronic2/index1/loopstick.html
quote:
Originally posted by mrgone
Wrap a few turns and measure the inductance. Some volt meters have inductance measuring.
I don't have that kind of multimeter...
But I'll make one some time...
after I'm done with my guitar wah... (the inductor is the last problem... 500mH) |
| mrgone |
Posted - Nov 17 2009 : 8:12:16 PM
Wrap a few turns and measure the inductance. Some volt meters have inductance measuring. |
| audioguru |
Posted - Nov 17 2009 : 7:48:32 PM
Then you need to guess about its spec's. |
| namzer0 |
Posted - Nov 17 2009 : 7:46:08 PM
The problem is, I don't know what or who the manufacturer is...
But it's from a nokia cellphone charger. |
| audioguru |
Posted - Nov 17 2009 : 11:17:40 AM
Go to the website of a ferrite core manufacturer like Ferroxcube (by Philips) and look at their datasheets. |
