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Topic Title: RF driver's purpose?
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Created On: 14 April 2012 09:47 PM
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 14 April 2012 09:47 PM
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Posts: 19
Joined: 11 September 2011

I have got a transmitter schematic in which the carrier frequency producing part is something like this:

Carrier Oscillator->Frequency Divider->RF Driver->Transformer->Power MOSFET Amplifier

I do not understand the purpose of RF driver in the circuit...please help
 16 April 2012 10:44 AM
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Posts: 109
Joined: 25 April 2006

It's a low level amplifier which amplifies the output of the frequency divider to a level suitable to drive the Power Mosfet Amplifier to full output. It probably has some filtering as well.

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