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ATX power supply, no mobo, momentary switch question
quarterback:
--- Quote from: Pik4chu on August 20, 2005, 01:16:35 am ---what this switch you speak of sounds like is possibly a relay... unfortunately I cant think of how to wire it w/o using a switch you must activate manualy. which in my experiences/findings is what people do with carputers anyways to avoid draining the battery.
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I'm planning on tapping into the lighter power, so it should only be draining if the key is turned to ACC or the car is running.
--- Quote ---What you would do would be hook the car voltage to the coil and to one side of the NO side, so when the car is on, juice is flowing, relay is closed and the device you are powering works.
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coinguy:
Make sure accessory plug turns off when ignition is off.
A SCR (silicon controlled rectifier) will turn on and stay on until power
is removed. Connect 14 to the (A) anode and Gnd to the cathode (K)
Connect the gate (G) thru a resistor and your pushbutton to (A).
You will need to experiment with the resistor value but 10K should
be a good start.
When the pushbutton is pushed current will start flowing causing
your ATX power supply to turn on. The SCR has a built-in stay-on
function untill power is removed. (The ignition is turned off)
quarterback:
You guys are awesome.
Pik4chu:
--- Quote from: quarterback on August 20, 2005, 12:28:33 pm ---You guys are awesome.
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quarterback:
--- Quote from: Pik4chu on August 20, 2005, 01:08:50 pm ---I get a lot of my small electronic parts from either www.mouser.com or www.digikey.com
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