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