Help with DC Power Supplies

Johnnytoxic · 28 Oct 2008 at 10:48

I need a power supply that does 10v 1.0A DC

Now does the voltage have to be spot on? or could I use 12v.

or is it the current doesn't have to be exact? I don't know what i'm talking about

Confused · 28 Oct 2008 at 11:44

Voltage will more than likely have to be spot on - most devices won't have very good overvoltage protection.

The current that a power supply can provide CAN be higher than required.

Scarfacé · 28 Oct 2008 at 11:49

Depends how good the voltage regulation of the equipment is.

I have charged several laptops with chargers that are a couple of volts above the stated for the laptop. Depends on how much you value the equipment.

El_Watcher · 28 Oct 2008 at 12:07

Voltage matters.
Polarity matters.
Current doesn't (as long as the PSU max output current is above the reuqired current of the device).

There aren't many variable PSUs that support 10V, but I did find one made by Ansmann.

Shadez · 28 Oct 2008 at 12:27

BigglesPiP said:
1A is big. Typical AC->DC adaptors have an output of around 0.3A

How about this COMPETITOR(you didn't specify a connector, so an adaptor may be required).

Johnnytoxic · 28 Oct 2008 at 12:58

I think it has a regulator so i'll try a 12volter.

Energize · 28 Oct 2008 at 13:31

BigglesPiP said:
1A is big. Typical AC->DC adaptors have an output of around 0.3A

Tons of adaptors are rated for 1A, my router and switch are both 1A. 12v with 0.3A isn't going to power much.