How to make a coupled inductor using Toroidal core?

pandusambu · 18th January 2012, 04:20 AM

Please give u r answers as soon as possible.

benb · 18th January 2012, 06:14 AM

Wind wire round it.

DF96 · 18th January 2012, 10:16 AM

Quote:

Please give u r answers as soon as possible.

Deadline for handing work in for marking?

Osvaldo de Banfield · 18th January 2012, 10:42 AM

Search in google for a work from Lloyd Dixon (I believe from Texas Instrument or Unitrode). There is an example of how to calculate coupled chokes for a SEPIC.

Good luck.

dtproff · 19th January 2012, 06:34 AM

Quote:

Originally Posted by pandusambu

Please give u r answers as soon as possible.

Here is a design example using mutual inductance formula from Dixon.

Tony

AndrewT · 19th January 2012, 11:23 AM

I love it.
Don't spoon feed the Member, just give Him/Her the Research Resources to help them to find out for themselves.

BTW,
those 12pages will probably keep me going into the next decade to gain a full understanding.

sawreyrw · 19th January 2012, 06:43 PM

Those 12 pages are nice, but not much use to a beginner. This link has useful information. SwitchModePowerSupply.net- Magnetic Design

Lazybutt · 20th January 2012, 02:40 PM

Quote:

Originally Posted by dtproff

Here is a design example using mutual inductance formula from Dixon.

Tony

Excellent !

dtproff · 21st January 2012, 07:20 PM

I will tell you why I sent it. There is a real lack of reliable information showing the true design process that a power supply engineer goes through to design a power supply. You don't just grab some wire and a transformer and go with it. So I thought I would pitch this out there and see if anyone would even take the time to wade through the math.

I have these for every topology I have ever done. If you do the math first, everything else is an exercise in execution.

Tony

sawreyrw · 21st January 2012, 09:46 PM

Tony,

I agree with your intent and issue, but there is much better Unitrode stuff available for a beginner. (I think the link I provided will be helpful.) It drives me nuts when I see a post about a transformer or inductor and the guy asking the question doesn't have a clue about what material his core has or anything else.

Rick

18th January 2012, 04:20 AM	#1
pandusambu diyAudio Member Join Date: Jan 2012	How to make a coupled inductor using Toroidal core? Please give u r answers as soon as possible.

18th January 2012, 10:42 AM	#4
Osvaldo de Banfield diyAudio Member Join Date: Dec 2011 Location: Barrio Garay,Almirante Brown, Buenos Aires, Argentina	Search in google for a work from Lloyd Dixon (I believe from Texas Instrument or Unitrode). There is an example of how to calculate coupled chokes for a SEPIC. Good luck. __________________ A veces pongo un circo y me crecen los enanos... "Que se llama soledad", Joaquin Sabina, el capo.

19th January 2012, 11:23 AM	#6
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	I love it. Don't spoon feed the Member, just give Him/Her the Research Resources to help them to find out for themselves. BTW, those 12pages will probably keep me going into the next decade to gain a full understanding. __________________ regards Andrew T.

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18th January 2012, 06:14 AM	#2
benb diyAudio Member Join Date: Apr 2010	Wind wire round it.

19th January 2012, 06:43 PM	#7
sawreyrw diyAudio Member Join Date: Apr 2006 Location: Minnesota	Those 12 pages are nice, but not much use to a beginner. This link has useful information. SwitchModePowerSupply.net- Magnetic Design

21st January 2012, 07:20 PM	#9
dtproff diyAudio Member Join Date: Oct 2008 Location: Plano, TX, USA	I will tell you why I sent it. There is a real lack of reliable information showing the true design process that a power supply engineer goes through to design a power supply. You don't just grab some wire and a transformer and go with it. So I thought I would pitch this out there and see if anyone would even take the time to wade through the math. I have these for every topology I have ever done. If you do the math first, everything else is an exercise in execution. Tony

21st January 2012, 09:46 PM	#10
sawreyrw diyAudio Member Join Date: Apr 2006 Location: Minnesota	Tony, I agree with your intent and issue, but there is much better Unitrode stuff available for a beginner. (I think the link I provided will be helpful.) It drives me nuts when I see a post about a transformer or inductor and the guy asking the question doesn't have a clue about what material his core has or anything else. Rick

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