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I am sorry if I am asking a basic question here but have no idea what I am talking about :).

My question is this:

I have a digital camera that requires DC supply.
I have a couple of power supplies but not sure if either are any good.

On the camera it states: DC12W 5Watt Max

On power supply 1: INPUT 100-240 VAC 50/60Hz 0.5A OUTPUT +12V 1A

On power supply 2: INPUT 100-240 VAC 50/60Hz 0.8A OUTPUT +5V 4

Are either power supplies powerful enough or are they too much?

Thanks

Andrew Simpson
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  • is it 12W or 12V on the cam? – Eugene Sh. Jan 23 '15 at 18:20
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    I would think it's 12V on camera, which at 5W max would be under 500mA. So the power supply 1 would work. You need to match the voltage rating, the current rating of the power supply just has to be higher than the current requirement of the camera. – I. Wolfe Jan 23 '15 at 18:22
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    I assume that's 12V, so 5W gives you 5/12 = 0.42A, so any power supply that outputs 12VDC and can supply A >= 0.42A will work. – Jarrod Christman Jan 23 '15 at 18:22
  • Hi chaps. Thanks for trying to help me. It says DC12V and 5W MAX on cam – Andrew Simpson Jan 23 '15 at 18:23
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    I suggest looking at the best answer to this question: http://electronics.stackexchange.com/questions/34745/choosing-power-supply-how-to-get-the-voltage-and-current-ratings Specifically the Voltage Rating and Current Rating sections. – FullmetalEngineer Jan 23 '15 at 18:23
  • Well 5 W max means that the camera will draw at most 5W, so your first power supply should work fine – FullmetalEngineer Jan 23 '15 at 18:25
  • @everyone. Thank you all for being so helpful. Much appreciated! – Andrew Simpson Jan 23 '15 at 18:27
  • @AndrewSimpson For future reference. Questions about use of electronics (especially consumer electronics) are off-topic on EE.SE . – Nick Alexeev Jan 23 '15 at 19:02
  • @NickAlexeev Hi, i had no idea that was the case. This was my 1st foray on this forum. I will delete this question if you deem appropriate? Thanks – Andrew Simpson Jan 23 '15 at 19:04

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I bet that on the camera it states "DC12V" 5Watt Max. If i'm right, use the power supply 1. If it is +12V 1A rated it means it can deliver 12Watt, so you have more than enough power.

ehilario
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