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How to amplify HF & LV signal to HF & HV signal?

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eng_maged

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Hello,
PlZ I want to ask if it is possible to amplify a signal ( amplitude modulated sine wave) with freq range (0.3 - 1 MHz) and amplitude ( 5 - 10 Volt) to become in the range of (0.5 - 5 KVolt) with output power in the range of ( 50 - 300 Watt) without affecting the freq or the shape of the signal . Can I use a power amplifier with a step-up transformer?
 

Re: How to amplify HF & LV signal to HF & HV signal

Theoretically-yes.
Practically- not easy.5kV and 300W means output impedance of about 83kohms.
That means that even a 2pf parasitic capacitor will have a serious impact on the gain.
So,the transformer must be quite good which I don't think is feasible.
But if efficiency is not a concern to you,you could build a more powerful amplifier and make sure it's loaded with a dummy load.
 

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