[Amps] bipolar input and output impedance
g8gsq at fs2.com
Fri Jun 5 00:56:29 PDT 2009
MRF454 is a 12V transistor, TH430 runs from 45-50V. Follow
Manfred's calculations and the transformer ratios will drop out.
Motorola App note AN758 has a comprehensive design description
that should be relevant to TH430s.
> What are the bipolar HF power transistor specs that influence or
> determine the input and output impedance? I have an ENI circuit using
> TH430 transistors with 4:1 input and output transformers, the EB-63
> circuit based on MRF 454s uses 16:1 transformers. What transistor
> parameters influence transformer design?
> Thanks - Dan
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