I am trying to find a 12 V input and 12 V output breadboard power supply but I can't find one. I am making an Arduino-controlled lock but the Arduino cannot power the lock strike by itself so I need to use a separate power supply. The link to make things clearer: http://www.instructables.com/id/Arduino-RFID-Door-Lock/#step0
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If your input is 12V then why do you need a 12V output? – Ignacio Vazquez-Abrams Jan 22 '15 at 01:12
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To be a able to use it with a breadboard, I am using a 120vac to 12vdc switching adapter to power the breadboard power supply. – Kyriazis Jan 22 '15 at 01:16
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What's wrong with just using wires? – Ignacio Vazquez-Abrams Jan 22 '15 at 01:19
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I want to separate the power from the outlet to positive and ground. – Kyriazis Jan 22 '15 at 01:21
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... What is that supposed to mean? – Ignacio Vazquez-Abrams Jan 22 '15 at 01:56
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I plug the switch adapter into the outlet and into the breadboard power supply. From there i can use 12v of power from my breadboard since it connects into the sockets of the breadboard. – Kyriazis Jan 22 '15 at 02:09
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I can't find a power supply that outputs 12v – Kyriazis Jan 22 '15 at 02:09
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That's odd as you said you already using a 12v switcher. Apparently you are misusing "power supply" to describe some other function. Be more specific about what this mystery item should do - imagine for a minute you are managing an engineer who will create this new invention from scratch: what is the requirement? – Chris Stratton Jan 22 '15 at 03:19
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Do you want a DC barrel jack on a board with wires or breadboard pins? – Chris Stratton Jan 22 '15 at 03:21
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https://www.sparkfun.com/products/114 this is basically what i want, but i want it to output 12v. – Kyriazis Jan 22 '15 at 03:30
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There is nothing special about a power supply that connects to a breadboard directly versus one that connects via wires. – Ignacio Vazquez-Abrams Jan 22 '15 at 14:47
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@IgnacioVazquez-Abrams so does that mean that a dc barrel jack would work? – Kyriazis Jan 22 '15 at 14:51
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Provided you connect a regulated power supply to it. – Ignacio Vazquez-Abrams Jan 22 '15 at 14:57
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@IgnacioVazquez-Abrams thank you, if you put that as an answer i will accept it. – Kyriazis Jan 22 '15 at 14:58
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Could that be a typo in the first sentence of your question, and you meant a 120v input, 12v output supply? That would explain a lot of the confusion that followed... – JRobert Jan 24 '15 at 22:13
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There is nothing special about a "breadboard power adapter" that isn't served by a normal regulated supply. Simply use wires or a barrel jack or some other connector to connect any regulated supply to the breadboard as desired.
Ignacio Vazquez-Abrams
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They sell 5V/3.3V breadboard supplies on eBay for $3-$5 shipped from China. Buy one and rewire/modify it to bypass the voltage regulator
imjosh
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