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Quick question for EE guy, 5volt, USB, soldering, etc (solved)

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spystyle:
I wonder what is inside these relays ? I bet we could replicate it on a small breadboard.

I might attempt to dismantle one of these relays, I have 2 more :)

(they are bought in packs of 3)

Have fun!
Craig

krick:

--- Quote from: spystyle on July 27, 2012, 09:14:57 pm ---I wonder what is inside these relays ? I bet we could replicate it on a small breadboard.

--- End quote ---

Relays have a mechanical switch inside.  That's what causes the click.  I don't think there's any way to make them much smaller.

Has anyone tried wiring up a USB plug so that the relay is triggered by your PC turning on? like this... EcoStrip 2.0 - USB Controlled Power Strip

It would require a relay that could be triggered by 5v or less though.  Probably a pain to find.  Most I see are 12vDC triggered.

spystyle:
Aha, thanks for chiming in :)

We'll see how it holds up :)

MonMotha:
Most 6V rated relay coils work well enough at 5V.  A lot of them even have 5V/6V written on them.  They're definitely available.  They'll mostly be the smaller packages (and hence current ratings), though.  It can take a surprising amount of current at only 5/6V to move the larger contacts needed for high current relays.

spystyle:
Interesting, I think I found one for less than 70 cents each LOL :

http://www.ebay.com/sch/i.html?_nkw=%22SRD-5VDC-SL-C%22+%225+pcs%22&_sacat=0&_odkw=SRD-5VDC-SL-C&LH_BIN=1&_sop=15&_osacat=0&_from=R40

When coupled with this $5.50 power strip :

http://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l2736&_nkw=4+OUTLET+POWER+STRIP+WITH+12%22+CORD+AND+CIRCUIT+BREAKER

... the completed strip is only $6.20 each to make LOL

And it can be powered through USB or Molex.

That apparently includes a breaker too. Here is the breaker from my recent hack :



I bet those are good to have :)

OK, have fun!
Craig

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