Common mode choke as a regular inductor (small signals), #inductance?
Common mode choke as a regular inductor (small signals), #inductance?
(OP)
Hi,
For a specific audio application (see my previous thread http://www.eng-tips.com/viewthread.cfm?qid=341157),
I'm considering to use a common mode choke as a regular inductor (this one: http://uk.farnell.com/multicomp/mct25x15x15c-502nu...) as a single inductor, placing both windings in series.
I have two questions:
-Besides of the very low saturation aspect (which is not a problem for my as I can use very small signals), I don't see a reason for any other artifacts, or are there?
-Can the total inductance be roughly estimated in advance? Considering twice the windings this would give 2^2=4 times the single coil inductance. But both coils are not so close to each other, so this might lower the factor significantly I guess...?
Thanks!{urijn
For a specific audio application (see my previous thread http://www.eng-tips.com/viewthread.cfm?qid=341157),
I'm considering to use a common mode choke as a regular inductor (this one: http://uk.farnell.com/multicomp/mct25x15x15c-502nu...) as a single inductor, placing both windings in series.
I have two questions:
-Besides of the very low saturation aspect (which is not a problem for my as I can use very small signals), I don't see a reason for any other artifacts, or are there?
-Can the total inductance be roughly estimated in advance? Considering twice the windings this would give 2^2=4 times the single coil inductance. But both coils are not so close to each other, so this might lower the factor significantly I guess...?
Thanks!{urijn





RE: Common mode choke as a regular inductor (small signals), #inductance?
RE: Common mode choke as a regular inductor (small signals), #inductance?
Benta.
RE: Common mode choke as a regular inductor (small signals), #inductance?
At least in theory. In practice, weird things can happen. Hope that makes it all crystal clear for you!
RE: Common mode choke as a regular inductor (small signals), #inductance?
I guess benta's answer is the most meaningful...
I'll post again if I find out the contrary!{
RE: Common mode choke as a regular inductor (small signals), #inductance?
That's a fact - not an opinion.
Gunnar Englund
www.gke.org
--------------------------------------
Half full - Half empty? I don't mind. It's what in it that counts.
RE: Common mode choke as a regular inductor (small signals), #inductance?
RE: Common mode choke as a regular inductor (small signals), #inductance?
RE: Common mode choke as a regular inductor (small signals), #inductance?
Gunnar Englund
www.gke.org
--------------------------------------
Half full - Half empty? I don't mind. It's what in it that counts.
RE: Common mode choke as a regular inductor (small signals), #inductance?
RE: Common mode choke as a regular inductor (small signals), #inductance?
Gunnar Englund
www.gke.org
--------------------------------------
Half full - Half empty? I don't mind. It's what in it that counts.
RE: Common mode choke as a regular inductor (small signals), #inductance?
Z
RE: Common mode choke as a regular inductor (small signals), #inductance?
For an equal resonant frequency (f0=1/(2Pi LC), Q increases when L/C increases, because the losses increase more slowly (also see my previous post...)
!{
RE: Common mode choke as a regular inductor (small signals), #inductance?
Cheers,
Benta.