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5vdc Power Supply for Ancillary Equipment

post #1 of 4
1/30/12 at 5:07pm
Thread Starter 

I have an Oyen external HDD and a wireless bridge that are being powered by cheap and probably noisy switching ps wall warts.  Can someone point me toward a diy 5vdc power supply design that I could build (I am a real diy newbie so I would need pretty good instructions)? 

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post #2 of 4
1/30/12 at 5:15pm

Why do you feel they need a new power supply?

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post #3 of 4
1/31/12 at 4:43am
Thread Starter 

I don't know that I do.  I have read multiple posts about switching power adapters polluting the power supply feeding the audio system.  In my case, all are on the same circuit.  I am being paranoid and I would also like to try my hand at building something and figured this would be a good place to start.

 

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post #4 of 4
1/31/12 at 5:42am

Well I doubt you will notice a difference as long as all your audio equipment has a well regulated power supply. However if you just want to build something to get into DIY I think some of AMB's offerings are good due to the excellent documentation and support, as well as readily available PCBs. AMB offers two possible power supply options for you: sigma 25 (an inexpensive, simple 78xx based supply) and the sigma 11 (a high end, fully discrete supply). You can find more info at amb.org. Another good option is a lm317 based supply. Google lm317 and you should find the data sheet with application circuits, or you can search here or other places for lm317 implementations.

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