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Electronics => Projects, Designs, and Technical Stuff => Topic started by: ali_asadzadeh on December 06, 2018, 12:29:40 pm

Title: Ultra wide input AC/DC 7.5W convertor
Post by: ali_asadzadeh on December 06, 2018, 12:29:40 pm

Hi,
I have designed several flyback converters mainly based on power Integration parts, Know for some project I need a 5V 1.5A SMPS with the input in the range of 15V-265V AC, I have seen this app note from power Integration, but unfortunately it can only deliver 3W, also searching TI website I came across this UC3843 part, and it would design it! ;) But I want to know is the webench reliable?  Do you suggest any design approach?

Title: Re: Ultra wide input AC/DC 7.5W convertor
Post by: Scutarius on April 13, 2021, 01:10:35 pm

Hi!

Did your power supply worked?
I am curious, why did you needed  that low input voltage?

I am working on a similar idea, but with 25 VAC to 250 VAC, I would like to know how it worked for you.

Thank you.

Title: Re: Ultra wide input AC/DC 7.5W convertor
Post by: ali_asadzadeh on April 14, 2021, 05:52:02 am

CesarEscudero my Idea did not work, have you made any progress?

Title: Re: Ultra wide input AC/DC 7.5W convertor
Post by: strawberry on April 14, 2021, 07:04:30 am

Pulse density modulation controller

Title: Re: Ultra wide input AC/DC 7.5W convertor
Post by: Scutarius on April 19, 2021, 08:54:15 pm

I am actually just starting to capture the schematic, I will let you know how it goes

Title: Re: Ultra wide input AC/DC 7.5W convertor
Post by: ali_asadzadeh on April 20, 2021, 05:20:46 am

That would be very nice :-+