> Where did you get 16 ohms from?

R = V/I.
The driver sees the load reflected via the transformer. If 
230 VAC causes 14 amps to flow then the AC is seeing 230/14 
~= 16.

In the absence of load the actual transformer impedance will 
be seen but it will very usually b swamped when loaded.


            Russell

>>>> I have to drive a transformer primary at 230 VAC @ 14
>>>> Amps @ 100KHz.  I have not yet measured the primary
>>>> impedance, but I will.
>>
>> The impedance you see will be about 16 ohms - ie the 
>> load,
>> more or less regardless of the transformer's unloaded
>> impedance.
>>
>>
>>        Russell

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