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90W Laptop adapter design

Posted by: Swetachalapath… on

Hi,

I need a  unversal input (85V-275V) laptop adapter design with 19V dc@ 5A design. What modifications do I have to make to a standard design like DER197?

Comments

Submitted by PI-Neela on 03/05/2013

You need to choose a bigger device for your 90W design. TOPJX 270, 271 could be a good candidate. You need to ratio your power train components to higher power. Control circuit can use the same configaration. Refer to datasheet for more details.