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HF high Ratio Transformer

 
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sedighe



Joined: 10 Jan 2007
Posts: 26
Helped: 5


Post13 May 2008 8:06   HF high Ratio Transformer

hi friends
i want to design a 4MHz Current Sense transformer which can sense about 4 Ampers. can i use a 1:100 transformer? is there any refrence that i can study more about RF transformers?

thanks Sedighe
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FvM



Joined: 22 Jan 2008
Posts: 1825
Helped: 332
Location: Bochum, Germany


Post13 May 2008 9:18   Re: HF high Ratio Transformer

I usually mention that current tranformers are ruled by the same relations as any transformer and can be calculated as such. For a a high frequency transformer, particularly the stray or leakage inductance and secondary parallel capacitance are defining the upper cut-of frequency. Snellings Soft ferrites is probably one of the best books regrading wide band and pulse transformers.
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