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switching power IC for hobby projects?

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akshay

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There are many instances where hobby projects need the equivalent of a wall adapter. And the hobbyist would rather spend time on the main project than building a heavy adapter with a transformer and such! or a complex switching converter!

Is there an IC that:
1> Converts AC (110V and 220V) to DC (say 3V to 12V) in an efficient, as-light-as-a-cellphone-charger method? The ease of use should match say a 7805 or a 317 ldo!
2> Can such and IC get a power boost using a high voltage external FET such as the IRF 640?
3> Can such an IC be protected against input voltage surges with another simple IC or a simple inline inductor or such?
4> Is there at least a DC-DC LDO switching IC to replace 7805s and 317s?
 

beh220

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hi
i am looking for a circuit diagram of switch mode dc/dc inverter whit 48 volt input and 220 volt sin wave out put and 5000 watt
if you have or know where from i can find it pleas help me
tanh you
 

akshay

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Thanks... that seems interesting!
 

darla1

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hi akshay

u can visit

www.onsemi.com

they low coat ICs for the application what u r looking with schematic.

NCP series like NCP 1010 NCP 1014

darla
 

    akshay

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akshay

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Those are isolated... great! so now we have both options...
 

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