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50 ohm to 75 ohm impedance converter
- Thread starter txdao
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I know I posted a reply to this question over the weekend. Was the thread deleted?
Use a transformer: transformers change impedance according to the relationship Z[sub]1[/sub]/Z[sub]2[/sub] = (N[sub]1[/sub][sup]2[/sup]/N[sub]2[/sub][sup]2[/sup]) where Z[sub]x[/sub] is impedance and N[sub]x[/sub] is number of turns for the primary and secondary windings respectively.
Transformers can be made very efficient by careful winding design and choice of core material.
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If we learn from our mistakes,
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Use a transformer: transformers change impedance according to the relationship Z[sub]1[/sub]/Z[sub]2[/sub] = (N[sub]1[/sub][sup]2[/sup]/N[sub]2[/sub][sup]2[/sup]) where Z[sub]x[/sub] is impedance and N[sub]x[/sub] is number of turns for the primary and secondary windings respectively.
Transformers can be made very efficient by careful winding design and choice of core material.
----------------------------------
If we learn from our mistakes,
I'm getting a great education!
Skogsgurra
Electrical
I think that we all know what happened to that post. The question is a typical student question. Especially the wording "with virtually no loss" points to that. That is not something that a working man would put in his question. It is also clear that the assignement was about HF/VHF and that the expected answer was a stub with a certain length.
I think that txdao(industrial) should do his homework on his own.
Gunnar Englund
I think that txdao(industrial) should do his homework on his own.
Gunnar Englund
Scotty, I think that your transformer post is in this thread...
analogkid2digitalman
Electrical
Soctty's post must have been transformed with virtually no loss.
Wheels within wheels / In a spiral array
A pattern so grand / And complex
Time after time / We lose sight of the way
Our causes can't see / Their effects.
Wheels within wheels / In a spiral array
A pattern so grand / And complex
Time after time / We lose sight of the way
Our causes can't see / Their effects.
Skogsgurra
Electrical
ScottyUK,
You answered a new irrelevant question in an existing thread. After answering, you mentioned that he should begin a new thread. Looks like he did. The irrelevant question has been deleted. The answer is gone now too after I RFed it. It looked a little lonely out there without a corresponding question.
You answered a new irrelevant question in an existing thread. After answering, you mentioned that he should begin a new thread. Looks like he did. The irrelevant question has been deleted. The answer is gone now too after I RFed it. It looked a little lonely out there without a corresponding question.
boreholelogger
Electrical
Use a stub matching circuit which will require a piece of double-sided PCB, Protel and a smith chart!. Look up stub matching on google or get a textbook written by CHENG to show you how to do it.
boreholelogger
Electrical
You will also need to know what frequency you want to match the 50 to 75 ohm line too.
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