Hello and thank you for helping me out with my doubts.
I've been trying to convert a small air pump from working with a car lighter to working with an AC/DC adapter, for home use.
The pump is identical to this one but is rated for 300 psi instead of 250: http://www.aliexpress.com/item/250PS...050035638.html
The pump has no amperage information, it only states that it's 12V DC.
I've searched around and some of this pumps say that the car lighter should be of 15 amps or higher(??). I think that's a very high current value for a small pump.
I've opened it up and it has a DC motor that moves a piston. When the piston comes down, air enters through a small hole, and when it goes up it exits through the air hose (which has the pressure gauge attached).
I've tried wiring the motor with an adapter that's rated for 12V, but can only provide 500mA.When I turned it on, the motor ran really slow and almost no air came out of the pump.
My questions are:
P.S. I can make a list of the other adapters I have in case that helps.
I've been trying to convert a small air pump from working with a car lighter to working with an AC/DC adapter, for home use.
The pump is identical to this one but is rated for 300 psi instead of 250: http://www.aliexpress.com/item/250PS...050035638.html
The pump has no amperage information, it only states that it's 12V DC.
I've searched around and some of this pumps say that the car lighter should be of 15 amps or higher(??). I think that's a very high current value for a small pump.
I've opened it up and it has a DC motor that moves a piston. When the piston comes down, air enters through a small hole, and when it goes up it exits through the air hose (which has the pressure gauge attached).
I've tried wiring the motor with an adapter that's rated for 12V, but can only provide 500mA.When I turned it on, the motor ran really slow and almost no air came out of the pump.
My questions are:
- I have other adapters. None of them is rated for 12V, but they have bigger current capacity than the one I've tried. So, will another adapter with higher or lower voltage work with this pump? I'd be much appreciated if someone could give me a basic explanation of how different voltages and amperage values affect the working of the motor. By that I mean if it would work with lower/higher voltage, and if it would require the same amount of amps at a different voltage.
- How does the motor draw more or less current? Does it have a certain speed at which it runs, and if it runs slower than that speed, it pulls out more amps? And if so, does changing the voltage affect that standard speed?
- This is kind of a different question. The air pump is a bit loud, I deduce that most of it's noise is a result of vibration, so would rubber padding at strategic places make the pump quieter?
- The pump will be used only to fill up inflatables and basketballs, as opposed to car tires. Will that diminish the current needed by the pump? If so, how many amps do you think it needs.
P.S. I can make a list of the other adapters I have in case that helps.