Dear Saeed, please have a look some papers on the topic. All the best. Vladimir
Dear Saeed Dashtban for the different power ranges and PSU sizes there are different ways of power loss minimization. To a.m. articles I would like to add TI's tools like this http://www.ti.com/lsds/ti/analog/webench/power.page
Please see FAIRCHILD SEMICONDUCTOR POWER SEMINAR 2008:
Designing Auxiliary Power Supplies
for High Efficiency and Low Standby Pow
Dear Saeed,
I suppose the answers you get become more helpfull if you add some more details on what you're trying to build and the efficiency you want to achieve.
AC/DC-Supply 400V 3-Phase in, 5VDC out (please forgive me for choosing an extreme example) has totally different demands than 12V in a car being stepped down to 5V to drive USB-devices.
Additionally, I'd be curious to know what you'd concider "High Efficiency".
Titanium standard for PC-SMPS demand to achieve 90-96%
http://en.wikipedia.org/wiki/80_Plus#Efficiency_level_certifications
Solar Inverters today can achieve >98%
The question on how to proceed first needs a very fundamental question to be answered:
What is your Budget?
Please see FAIRCHILD SEMICONDUCTOR POWER SEMINAR 2008:
Designing Auxiliary Power Supplies
for High Efficiency and Low Standby Pow
Please furnish the required details viz... Input voltage, output power, output voltage, nature of input and so on
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