Questions tagged [12v]
Deprecated tag. Do not use in the future.
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How to eliminate relay buzzing when turning on and off
I'm using one of these relays to power some LED's using a trigger wire that outputs either 0V, 50mV, or 12V. The relay has a low voltage trigger setting that turns on when there is anything less than ...
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Trying to power a 12 V LED underglow system using PWM signal from dome light
I've learned a lot from the brilliant minds on this forum so far, and I think I've narrowed my original question a bit.
I'm trying to create an entry light effect in my car using my LED underglow ...
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12v LED lights powered by 2 different circuits
I am wiring some automotive LED lights (underglow), and currently have them wired from the 12v ACC power (on when ignition is on), with a 5-pin illuminated on/off rocker switch on the dash. It works ...
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Kicad telling me to connect pads together when I feel it's incorrect
Hey all I am wondering if this is the correct way to trace a fuse holder on my pcb. I would imagine that the top 2 pads connected to each other and the bottom 2 pads connected to each other. Running a ...
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Switch on resistance
I already spent quite some time looking at the forum's search feature, but cannot seem to find an answer. My challenge is the following, I have two batteries that are joined or separated by a switch. ...
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Switching 12 V when power is on/off from a 4.5 V source
Is there a switch for 12 V that will turn off/on when power is either off/on from another source? Example: I have an LED controller for lights. It only pushes 4.5 volts, which won’t supply all my ...
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Proper circuit for a solenoid being triggered by a relay with occasional misfires
12V relay question…
I built a homemade pinball controller for my PC using a standard, 5 V USB encoder for the controls. I wanted to add some haptic feedback, so I decided to add a few 12 V solenoids ...
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12V – DC wire gauge | Does length calculation ‘reset’ at socket/ junction?
Sorry in advance that this is a basic question which is pretty obvious. I’ve just been struggling to find a clear answer and wanted to confirm.
I’ve set up a 12 V leisure battery system in my van to ...
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Using Linear Voltage regulators in parallel for a high current load
I need to build a high current 12 to 5 volt regulator.
This will power neopixels, which draw 60mA each, and we have like 800 of them, so around 48A when all of them are on at full brightness and white....
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2 xLM324N lead battery charger fail. Images added
i have a Lead Acid battery charger that was given to me since its not working.
I have no 12volts output neither any led on.
Schematics do not appear after hours of google search
So far ive tested ...
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First PCB design - remix of PCB I found already on the market with some 12V DC jacks - any advice?
I created my first PCB design - its a remix of PCB I found already on the market with some added 12 V DC jacks and XH-2A jack - this will only ever be used with 12 V up to 2 A - wondering if there are ...
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Can these timer switches (relays) handle DC or will they arc?
I'm looking to add timer functionality to a 12V agricultural project. It's to turn a light and heat mat on and off at the appropriate times.
I was kicking around eBay and found a few timer switch ...
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Should the DC-DC and solar charging go through the main fuse or dedicated fuse?
I am planning a 12V dual battery setup to be used in a car. The aux battery is a LiFePo4 battery and it will be charged via a combined DC-DC and solar charger (50A, fuse 65A).
I want to add a fuse and ...
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What Capacitor do I need? (if any) [closed]
I have a airplane with a radio and other electronics. When I transmit on my radio the voltage drops about 0.3 volts across my other electronics and causes some sensitive sensors to read incorrectly. ...
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Basic Wiring Help
I’m an individual that likes to tinker around with things and I’m asking for help.
I’m in the middle of a car audio system update. I currently use a basic relay as a “turn-on” switch for my ...
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