Arduino Forum

Using Arduino => General Electronics => Topic started by: mkbu95 on Jun 02, 2013, 11:19 pm

Title: Power supply for Arduino UNO R3
Post by: mkbu95 on Jun 02, 2013, 11:19 pm
Hello.
I have just bought an Arduino UNO R3 and I got here two power supplies but I don't know if they are appropriate for supplying energy to my arduino.

The first one reads:
Quote
I.T.E. POWER SUPPLY
MODEL: HK-J206-A12
PRI.: 100-240V ~ 50/60Hz 0.2A
SEC.: 12V DC 0-0.5A (SET AT 0.5A)


And the second:
Quote
I.T.E. POWER SUPPLY
MODEL NO: UWP01211075U
INPUT: 100-240V~ 50-60Hz  0.5A
OUTPUT: DC 7.5V  1.3A


PS: where I wrote "DC" it was actually this symbol: (http://i.imgur.com/jyJdpAi.png)

Are any of these fitting for arduino?

Thanks in advance.
Best regards.
Title: Re: Power supply for Arduino UNO R3
Post by: cmiyc on Jun 03, 2013, 01:05 am
That is the symbol for DC.

Both would work.  I'd recommend the 7.5V.  The on-board regulator will generate less heat when running compared to the 12V supply, meaning more current is available to your project.
Title: Re: Power supply for Arduino UNO R3
Post by: mkbu95 on Jun 04, 2013, 01:44 am
Okay, thank you for your answer.