12v Pump not Working. Is it broken or am I doing something wrong?

Other Hardware Motors, Mechanics, Power and CNC
1

I have been trying to use the following 12V 0.6A self priming gear pump with an arduino uno with no success.

I have connected it via a H-Bridge using a 12V 23A battery to power up the bridge to no avail.

I even tried touching the tip of bare wires to the poles of the 23A battery but still nothing.

Am I to conclude this component is broken? Or is my measly 23A not enough to power it. If so what will?

2

film2019:
I have connected it via a H-Bridge

Why a H-bridge. Do you want to reverse the pump? Can it?
A logic level mosfet would be better.
Diagram #1 here.

A23A battery ofcourse can't deliver the current needed for that pump.
A string (eight) of AA batteries would be the minimum.
A 12volt 7Ah SLA battery would be better.
Or power it with a 12volt/1Amp supply.
Leo..

3

Yes, I do want it to reverse.

I was told by a colleague this model might work for this but only one way to find out I suppose.

To be fair probably should have not mentioned the H bridge as my immediate concern is with getting the thing to work at all.

Apologies for the novice question but what is the problem with the 23A? I was naive enough to assume that if the power source was rated for 12v that would be all I needed.

What else does one need to look out for in power sources to make sure they work with certain components?

BTW, would a simple 12V DC power supply plugged to the wall be enough for this?

cheers.

4

Running current of your pump is about 600mA, and startup current is likely a bit higher than that.
Small batteries like the [A23 can only deliver about 20mA](http://Small batteries like the A23 can only deliver about 20mA of current before collapsing. Just ok for a LED or a car remote.) before collapsing.
Just ok for a LED or a car remote.

You need a supply (or battery) that can at least deliver that startup current.
12volt/1Amp (or higher).

Note that cheap H-bridges like the L293D or L298 loose a few volts.
Your pump might only get 10volt if using these, and it will pump somewhat slower.
You could compensate for that (or not) by using a higher supply voltage, or a better H-bridge.
Leo..