power suply without step down transformer

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dewingong
Posts: 1
Joined: Mon Sep 08, 2008 11:31 am
Location: mhb

power suply without step down transformer

Post by dewingong » Mon Sep 08, 2008 11:45 am

To all,
I want to design a power suply for laptop without using a stepdownd transformer.
Can any one help me with a schematic . :cry:

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