Questions tagged [12v]
Deprecated tag. Do not use in the future.
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Can a 12V battery give you a shock or not?
I am reading a book called "Make: Electronics" and, on page 9, it says:
"Anyone who has dropped an adjustable wrench across the bare terminals of a car battery will tell you that short circuits can ...
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Explain the logic of a 12 V to 9 V conversion
How does the below circuit work?
I know what resistors, capacitors, and transistors do and have played with them on a microcontroller board, but am I trying to understand the logic of the circuit.
I ...
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Using a 12V battery while simultaneously charging via solar panel
I have a couple of 12v batteries that I'd like to use to power a cooling apparatus while camping for several days.
I also have a 15W solar panel I'd like to use to top-off the battery.
Can I use the ...
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Is there a way to tell what frequency I need a PWM to be?
I have a 12V DC motor that turns at 60 RPMs or 1 Hz. Do I need a PWM that matches the frequency in order for it to work? Most of the ones I've seen are around 25 kHz for a 12V 20A motor.
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Detect car +12V using Arduino
I am looking to detect 12+V from a car wire using an Arduino.
I have found the following schematic:
I know how crazy automotive voltage can get so I just want to make sure the schematic I found ...
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How can I model a relay in LTSpice IV?
I would like to use a 12V relay in my LTspice circuit, however there is no relay in the component list.
How can I do?
Relay model: SRD-12VDC-SL-C
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How to make -12V from a +12V supply?
The equipment I have needs +5V +12V and -12V supplied to it. The old PSU which provided all the voltages blew to bits. I have sourced a PSU1 +5V (30A), and PSU2 &PSU3 (two identical +12V (2A) ...
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Replacing incandescent bulbs with LEDs, unexpected behavior
I have an over-the-stove microwave/hood vent combo with 2 adjustable-brightness lights. The lights appear to be 12V lamps with a G4-style connector, and they burn out too often. I decided to go with ...
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Using a 12 V 3 A bilge pump on a 12 V 8.5 A LED power supply
I recently bought the following for a grey water system project I'm working on:
3 x 12 V, 3 A bilge pumps
1 x 12 V 12.5 A power supply
I'm not an electronics expert, so my assumption was that the ...
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What is this connector called and are they commonly used?
I'll probably end up just cutting it off but I'm kind of curious now.
I found it on a 12vdc water pump.
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Extract 12 V from USB port
I wish to drive a 12 V stepper motor with a USB port as the source of power. However, the USB port only outputs only 5 V. This will obviously not work.
I had thought up of several ways to overcome ...
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DIY 12 Volt UPS
Hi i am trying to make a UPS for a project that requires 12Volts.
I'm currently using a replay diode and capacitor.
My problem is that when the switchover occurs, the voltage drops from
12Volts to ...
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What are the standard connectors used on 12V hobby batteries?
I'm looking for a right-angle PCB board mate for the standard 12V hobby battery connectors.
Where can I find these connectors?
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Arduino Uno with 12V pump: transistor or optocoupler+12V relay?
I'm not a real expert in electronics but I'm going to start a new project that has completely captured me.
I need to drive a 12V pump with my Arduino Uno. The pump is "Dp0102" (12V, 0.7A). To power ...
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Discharge time of 12 V 8.4 Ah at 5 mA
I have a motorcycle battery rated as 8.4 Ah (20 HR). It also says 8 Ah (10 HR) and I am not sure what the difference is.
Anyway, I have a GPS tracker fitted with a rated ...
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