request for a good power supply schematic

[avr_micro]

Dear masters

I should build a micro controller based circuit in very noisy and unstable place.Sometimes the base electric line has current changes in about 500~1000 A.The base electric energy will be prepare by a big diesel generator.So i need a very good power supply schematic (5.0v,Min 2A).what is the best power supply. Please help me for finding the right way.

Regards

 

[electronicus]

Use LM 338, (5-Amp Adjustable Regulators). Go here:

 

[IanP]

If I were to handle this project, I would use 100µH/3A inductor and 4700µF/electrolytic+100nF/ceramic, and then LM350 linear voltage regulator, followed by 10µF tantalum + 100nF ceramic ..

Regards,
IanP

 

[avr_micro]

What about Switching power supplies?Is there any reliable switching power supply that could be easy to made and cheap?