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Air Core Transformer Design - RF Cafe Forums

The original RF Cafe Forums were shut down in late 2012 due to maintenance issues. Original posts:

Amateur Radio | Antennas | Circuits & Components | Systems | Test & Measurement


Eli Hait
Post subject: Air core transformer design Posted: Mon May 23, 2005 9:29 am
Hi,

I need to design a high-frequency, low power air core transformer implemented by conductors printed on PCB.

Does anyone know about an application notes, free software or java applet which cam assist me in this case

Thanx in advance
despair_eli


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Guest
Post subject: Air-core transformersPosted: Mon May 23, 2005 7:18 pm
What sort of frequency range and powers are you talking about?
Thanks!


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Guest
Post subject: Re: Air-core transformersPosted: Wed May 25, 2005 5:19 am
Guest wrote:
What sort of frequency range and powers are you talking about?
Thanks!


Less than 20mW....
About the frequency - since i'm dealing with miniature air core transformer it has to be several hundreds of MHz or even GHz...


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Guest
Post subject: Re: Air core transformer designPosted: Tue Jul 26, 2005 2:58 am
Eli Hait wrote:
Hi,

I need to design a high-frequency, low power air core transformer implemented by conductors printed on PCB.

Does anyone know about an application notes, free software or java applet which cam assist me in this case

Thanx in advance
despair_eli
[url][/url]


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Guest
Post subject: Posted: Tue Jul 26, 2005 11:46 am
So many people go to the trouble to ask questions on this website, but don't give any details for there requirments.

Are you designing a transformer? What's the impedance ratio? Is it balanced to unbalanced? What's the bandwidth? Center frequency?


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sshshah40@yahoo.com
Post subject: find out transformer capacity such that voltage drop acrossPosted: Mon Aug 22, 2005 11:03 am
find out transformer capacity such that voltage drop across this transformer is not more than 20% when 500kW motor is started.
(.8 power factor)




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