A
Active8
- Jan 1, 1970
- 0
hi:
i'd like to be able to get a good approximation of coupling coefficients
of coils/xfmrs. there's a link below. i was trying to find Neumann's
double line integral and the only DLI i can find is in sec 6. of that
document. not sure if it's the same thing. the doc deals with single
turn coils in the same plane with center separation D. when D=0, the
centers of the loops coincide and maybe it works, but you can't separate
the loops along the longitudinal axis. i found a program for tesla coils
that computes M and k for muti-turn coils. there's no documentaation for
the program and therefore no way to expand on it. it's supposed to be
based on Neumann's integral, but you can't enter in core permeability so
it's limited to air core coils. it's answers don't agree with the
program based on the doc below, either.
i want to approximate M for bifiliar, trifiliar, etc. xfmrs as well as
layered (one winding on top of another - they say there is no k=1) coils
and those separated or not overlapping.
is the difference between a center tapped coil and a bifiliar winding
with the non-dot end of wire 1 connected to the other wire's dot end
just a matter of coupling, all else being equal and neglecting parasitic
caps?
http://www.distinti.com/docs/ni.pdf
thanks in advance,
mike
i'd like to be able to get a good approximation of coupling coefficients
of coils/xfmrs. there's a link below. i was trying to find Neumann's
double line integral and the only DLI i can find is in sec 6. of that
document. not sure if it's the same thing. the doc deals with single
turn coils in the same plane with center separation D. when D=0, the
centers of the loops coincide and maybe it works, but you can't separate
the loops along the longitudinal axis. i found a program for tesla coils
that computes M and k for muti-turn coils. there's no documentaation for
the program and therefore no way to expand on it. it's supposed to be
based on Neumann's integral, but you can't enter in core permeability so
it's limited to air core coils. it's answers don't agree with the
program based on the doc below, either.
i want to approximate M for bifiliar, trifiliar, etc. xfmrs as well as
layered (one winding on top of another - they say there is no k=1) coils
and those separated or not overlapping.
is the difference between a center tapped coil and a bifiliar winding
with the non-dot end of wire 1 connected to the other wire's dot end
just a matter of coupling, all else being equal and neglecting parasitic
caps?
http://www.distinti.com/docs/ni.pdf
thanks in advance,
mike