Reactance / Inductance / Impedance of a 1:1 Transformer
I've searched around and poored through what references I have available, and haven't been able to find an answer to this question.
Regarding 1:1 transformers, I found a website where an audio amplifier electronics guy mentioned that it doesn't seem too much to matter how many winds you put on a 1:1 transformer so long as the reactance/impedance is at least about 4x the circuit impedance. He said "about" as if there was no magic way he calculated it -- it was simply based on his experience building and fixing amplifiers and transformers. I was wondering if someone shed some light on this issue.
I'm most interested in a full-load transformer. Here's a circuit showing an inductor and resistor in series with the transformer.
What is a practical Z for the primary coil of the transformer to make sure it works properly? And what kinds of problems will arise if my Z is way too low?
So for the sake of total extremes. Assume I only had 100 Volts and 0.9amps in the primary circuit, limited mainly by the resistance and impedance of R1 and L1 Let's assume the resistance of the transformer is minor for simplicity. What is going to happen in the secondary circuit if my impedance on the transformer primary is near zero? Will I just get no power at all in the secondary? Will I get some current with very small voltage?
And what will happen if the reactance of the transformer primary is 100Ohm making it very similar to the L1?
Thanks in advance.
EDIT: I should clarify that by "full-load" transformer, I'm meaning the condition that the transformer secondary is dead-shorted. The diagram is showing an amp-meter (A) between the leads.
I've searched around and poored through what references I have available, and haven't been able to find an answer to this question.
Regarding 1:1 transformers, I found a website where an audio amplifier electronics guy mentioned that it doesn't seem too much to matter how many winds you put on a 1:1 transformer so long as the reactance/impedance is at least about 4x the circuit impedance. He said "about" as if there was no magic way he calculated it -- it was simply based on his experience building and fixing amplifiers and transformers. I was wondering if someone shed some light on this issue.
I'm most interested in a full-load transformer. Here's a circuit showing an inductor and resistor in series with the transformer.
What is a practical Z for the primary coil of the transformer to make sure it works properly? And what kinds of problems will arise if my Z is way too low?
So for the sake of total extremes. Assume I only had 100 Volts and 0.9amps in the primary circuit, limited mainly by the resistance and impedance of R1 and L1 Let's assume the resistance of the transformer is minor for simplicity. What is going to happen in the secondary circuit if my impedance on the transformer primary is near zero? Will I just get no power at all in the secondary? Will I get some current with very small voltage?
And what will happen if the reactance of the transformer primary is 100Ohm making it very similar to the L1?
Thanks in advance.
EDIT: I should clarify that by "full-load" transformer, I'm meaning the condition that the transformer secondary is dead-shorted. The diagram is showing an amp-meter (A) between the leads.
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