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Help me with designing a small smps power supply

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garg29

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smps power supply

dear friends
i want to design a small smps power supply with specification
12 volts and -12 volts and current rating of 0.5 amperes. please help me out how to go through it. i have no idea at all of smps. the circuit sgould be small and cheapest .

Added after 28 minutes:

also the input voltage is 220vaC and output is is form of dc
 

Re: smps power supply

U need to design a AC-DC converter. U can get lot of material on them in Texas instrumants website or in National website as well.

All the best
 


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