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Electronics => Projects, Designs, and Technical Stuff => Topic started by: ali_asadzadeh on April 01, 2019, 07:24:25 am

Title: Low profile Ferrite core suggestion
Post by: ali_asadzadeh on April 01, 2019, 07:24:25 am

Hi,
I want to design a low profile product, so I need some ferrite core and bobbins to replace EE13 and EE16 transformers, Do we have something with low profile? Ideally if I can find something with 5 or 6mm height max it would be very nice. Also do you know some good and reliable chinese manufacturer to tell?

Title: Re: Low profile Ferrite core suggestion
Post by: T3sl4co1l on April 01, 2019, 07:29:16 am

Tons!  Look at any catalog.  ELP, planar E and ER, and I forget what others.  SMT bobbins (vertical cores with low profile; horizontal cores with low width) are common, or you can make your own from PCB, usually with 4+ layer boards (planar magnetics).

Tim

Title: Re: Low profile Ferrite core suggestion
Post by: ali_asadzadeh on April 01, 2019, 08:20:44 am

Thanks Tim for the feedback, do you have a favorite manufacturer or part number? what about chinese manufacturers? do we have a parametric search engine out there? PCB sound nice, but a flyback transformer with about 80 turns of primary!Is it doable?

Title: Re: Low profile Ferrite core suggestion
Post by: TimNJ on April 01, 2019, 05:51:42 pm

For a traditional wire-wound transformer, finding an appropriate core/bobbin combination with 5 or 6mm height sounds tricky. 10mm might be a little more realistic. Maybe take a look at EFD15.