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Electronics => Projects, Designs, and Technical Stuff => Topic started by: safarir on June 28, 2010, 12:08:38 am

Title: SMPS Transformer
Post by: safarir on June 28, 2010, 12:08:38 am

Hi everyone,

I plan on building a simple and small off-line power supply using the NCP101X serie of chip. A read a lot of app note but I am stock at the transformer.

I know exactly the specification of the transformer I need but I can't figure out where to find one/how to build one. I know nearly nothing about transformer and I am looking for great ressource about the subject.

Thanks a lot

Title: Re: SMPS Transformer
Post by: saturation on June 28, 2010, 10:47:29 am

http://www.falco.com/products/1/smps.asp

Title: Re: SMPS Transformer
Post by: safarir on June 28, 2010, 12:41:57 pm

Thanks a lot Saturation, that a very good start

Title: Re: SMPS Transformer
Post by: Pyr0Beast on July 01, 2010, 08:32:42 pm

Voltage and current, primary and secondary, working frequency ?

You can easily steal one from a dead PSU and rewind it for a start.

Title: Re: SMPS Transformer
Post by: safarir on July 01, 2010, 08:56:26 pm

I just find a exellent application note:
http://www.irf.com/technical-info/appnotes/an-1024.pdf

Title: Re: SMPS Transformer
Post by: Scutarius on July 06, 2010, 04:53:09 pm

I will recommend you PI expert software