Hi to all. I have a small signal transformer, but at this time this transformer is unknown for me.
I start with turn ratio measurement: The transformer have 1:5 turns ratio. This is 1:25 impedance ratio.
This transformer can be either 600:15k and 200:5k and so on.
The inductance at 1kHz with open secondary is 38.2H for the primary and 1.43H for secondary. At this time there is no matter which is primary and which secondary.
As we know the transformer impedance is variable and depend by what the transformer see from the other side, but what's the best input and output impedance?
I don't know how to measue the real input (or output) impedance. If I know this, I can use this transformer for the proper usage.
I have 2ch scope, LCR with fixed frequencies: 100Hz, 1kHz and 10kHz, multimeter, signal generator and of course calculator
I don;t have THD analyser, but I can use spectralab software for some cursory measurement.
I'd like to ask you what's the accurate procedure to measure this transformer to identify it.
Thanks, Niki.
EDIT: I forget to tell you that the DC resistance for the primary is 1.18K and for the secondary 54 ohm
I start with turn ratio measurement: The transformer have 1:5 turns ratio. This is 1:25 impedance ratio.
This transformer can be either 600:15k and 200:5k and so on.
The inductance at 1kHz with open secondary is 38.2H for the primary and 1.43H for secondary. At this time there is no matter which is primary and which secondary.
As we know the transformer impedance is variable and depend by what the transformer see from the other side, but what's the best input and output impedance?
I don't know how to measue the real input (or output) impedance. If I know this, I can use this transformer for the proper usage.
I have 2ch scope, LCR with fixed frequencies: 100Hz, 1kHz and 10kHz, multimeter, signal generator and of course calculator
I'd like to ask you what's the accurate procedure to measure this transformer to identify it.
Thanks, Niki.
EDIT: I forget to tell you that the DC resistance for the primary is 1.18K and for the secondary 54 ohm