K
[email protected]
- Jan 1, 1970
- 0
Thanks to all.The power line is having 10A current at 50Hz. i know the
conductor on the line side of the transformer has to be sized for it.
i cannot use the air core as the signal i am trying to inject into the
line is very small magnitude. To have good coupling between the
primary and secondary i need strong field with air core. Am i right to
say so?
Talking more on the cores, last week i ran through many books on
magnetic cores. I came to conclusion that for high frequency the
existing cores are MnZn and NiZn cores. MnZn has high permeability and
its magnetic resonance is at somewhere in few hundreds of kHz. For
NiZn, the permeability is low and it is wideband than MnZn cores but
it still suffers from permeability roll down at few MHz. So if i take
the permeability at certain frequency and design the inductor or
transformer, at other frequency its not the same.
Please suggest any reference to read on. i am gonna get that book of
Randy and see it.
thanks.
conductor on the line side of the transformer has to be sized for it.
i cannot use the air core as the signal i am trying to inject into the
line is very small magnitude. To have good coupling between the
primary and secondary i need strong field with air core. Am i right to
say so?
Talking more on the cores, last week i ran through many books on
magnetic cores. I came to conclusion that for high frequency the
existing cores are MnZn and NiZn cores. MnZn has high permeability and
its magnetic resonance is at somewhere in few hundreds of kHz. For
NiZn, the permeability is low and it is wideband than MnZn cores but
it still suffers from permeability roll down at few MHz. So if i take
the permeability at certain frequency and design the inductor or
transformer, at other frequency its not the same.
Please suggest any reference to read on. i am gonna get that book of
Randy and see it.
thanks.