Can I power 5V with 12V?

The device will very likely burn out. In addition, depending on what the device is and the capacity of the 12V supply, connecting a 12V supply to a device rated 5V max could lead to a hazard – fire, explosion, etc.

Can I use 12V to 9V?

You can’t use a 12V adapter to power a 9V guitar pedal. A pedal that only handles 9V can be destroyed by using a 12V adapter. It’s possible for a power supply to ruin your pedal even if you get the voltage right.

How do you check a 12V supply?

To find a constant 12v source, you will use the positive probe (typically red) of your multi-meter. Start by grounding the multi-meter to a vehicle ground point (metal). Once the multi-meter is grounded, ensure that the ignition switch is in the “off” position.

Can you use a 12V 2a charger on a 12V 1.5 a device?

Yes, you can use a 12V 3A power adapter on 12V 1.5A device. You can also use a 12V 0.5A power adapter but the charging time will be three times longer. If you are a cautious person then you should use a manufacturer recommended power adapter. But whether it is better than a generic adapter depends on your luck.

Can I use a power supply with higher voltage?

Higher current (A) is okay because the device won’t use as much, but higher voltage (V) is going to “fry” it. Conversely, lower voltage is unlikely to cause damage since the device simply won’t have enough power, but lower current can cause trouble because the power supply cannot provide enough.

Can I use 6V instead of 5V?

If you’re mildly comfortable with electronic circuits, you could convert the 6V adapter to 5V. This can be done by hooking up the output of the adapter to a simple 5V linear regulator (the 7805) — the dropout would probably be low enough at 200mA to supply 5V.

How do I run a power supply without a motherboard?

Simply plug one wire from the switch into the PSU’s green connector and the other wire into any of the black connectors. It doesn’t matter which one of the black connectors you use, and it doesn’t matter which end of switch is connected to which wire.

Where can I find a 230V power supply for my pump?

Finding a 230v AC to 12v DC power supply with enough peak current capacity to run your pump is possible, but is likely to prove to be expensive. Such PSUs can be found on, on line auction sites, but be warey: there are vast numbers of Chinese manufactured Switched Mode units.

Do I need a 110V or 12V pump?

Fair enough. =) Good thing is, you don’t need regulated. 13.8 volts is also OK to run a 12v pump. Pilot Dane made a good suggestion. Ditch the $40 12v pump, and just buy a 110v one.

What power supply do I need to run a diaphragm pump?

This is one reason why most caravans do also have a 12 v battery which acts as a current reservoir and allows these diaphragm pumps to be used. Finding a 230v AC to 12v DC power supply with enough peak current capacity to run your pump is possible, but is likely to prove to be expensive.

How many amps do I need to charge the pump?

The pump will draw the current it needs, so you need to make sure the power supply can deliver at least 8 amps. More won’t hurt, but less could burn out the power supply. Why not continue to use the 10-amp charger? Thanks for the reply.