asking about ampere

draze75 · Jul 7, 2012

Hi Guys,

sorry im a noob for electric device.
I have a sensor, here r the data sheet
voltage supply range +Vs 10 ... 30 VDC
current consumption max. (no load) 25 mA
current consumption typ. 20 mA

can i supply the sensor with the power supply 12V DC and 2 A , is it ok giving a 2 ampere?

Thank you so much!

k7elp60 · Jul 7, 2012

Your power pack should be fine, as the device will only draw what current it needs to operate. The powerpack has the ability to supply more current which is fine.

DerStrom8 · Jul 7, 2012

draze75 said:
Hi Guys,

sorry im a noob for electric device.

First of all, never apologize for being a "noob". We were all newbies once, and we're here to help you learn

can i supply the sensor with the power supply 12V DC and 2 A , is it ok giving a 2 ampere?

Absolutely. As k7elp60 said, it will only take what it needs. Think of it as a pitcher of water. You're thirsty, but only for one small glass. You have a "reservoir" with more water than you want, and you only take what you need. That's basically how it works.

draze75 · Jul 7, 2012

oh ok, thank you so much guys

draze75 · Jul 7, 2012

DerStrom8 said:
First of all, never apologize for being a "noob". We were all newbies once, and we're here to help you learn

hehehe. thanks2..

Absolutely. As k7elp60 said, it will only take what it needs. Think of it as a pitcher of water. You're thirsty, but only for one small glass. You have a "reservoir" with more water than you want, and you only take what you need. That's basically how it works.

nice analogy bro.. thanks!.

DerStrom8 · Jul 7, 2012

draze75 said:
nice analogy bro.. thanks!.

Hahaha, glad you think so! It's not one of my best analogies, but it was the first to pop into my head

prprog · Jul 13, 2012

DerStrom8 said:
First of all, never apologize for being a "noob". We were all newbies once, and we're here to help you learn

Absolutely. As k7elp60 said, it will only take what it needs. Think of it as a pitcher of water. You're thirsty, but only for one small glass. You have a "reservoir" with more water than you want, and you only take what you need. That's basically how it works.

Great. But how about the opposite. If the power supply is not enough , would that damage the power supply...or the device?

throbscottle · Jul 13, 2012

Any half decent power supply should have built in protection against too much current being drawn, and 20-25mA is a tiny amount compared to 2A anyway. It is extremely unlikely to damage your device if the supply isn't adequate, but you may get strange results.

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