I actually have the whole system from the link above so I put a multi-meter inline and determined the controller was feeding the pump 1A @ 10V DC.
Thinking I was being clever I bought a 12V 2A switched ac adapter. I plugged it in and it started making awful jerking movements, which got me wondering could this be a stepping motor? Would a stepping motor behave like this when feed directly?
Since I have the original system as well is there a way I could determine this short of pulling it all apart?
After some more digging, it seems like it may be a 2 wire brushless motor. From what I have read brushless motors require a ESC that is designed for that motor, and to try and build one would be a large undertaking.
Let me know if I'm drawing the wrong conclusions here as this is just from a couple hours of googleing...
We can't tell what pump you are talking about from the URL you posted.
That's the problem I'm trying to solve Yes it has two wires. I'm game for any suggestion on how I can determine what it is. It's sealed in a water proof plastic housing so I can't open it. I do have the Controller System it was used with so I could open that up if it comes down to it. I did measure the voltage and amperage it was pulling but that's about as far as I know to check...
I thought it was brushless from a post a guy left saying a Brushless motor will jerk on and off if directly attached to DC current which is what was happening to me.
Ok, I broke down and opened up the controller. I googled almost all the IC's on it and the only one that came up interesting was MC14528BG. It says it's a Multivibrator, which from what I read generates a pulse width modulated signal. Could that be used to drive the Motor?
I'm learning as I go here so I may be off in left field. I will try and follow the traces and see if I can figure out which chips the motor connects too...
So when I connect it directly to 12V it continuously stops for a second then runs for a second. I don't think I have a wall wart that's 10v, but I will look around. Could 2 volts cause that weird jitters?
Thanks for taking the time to help me, its much appreciated.
Well that did the trick, I had a 9V power supply I tried and what do you know it worked. The initial website I posted must be wrong, it labels the pump as 3-12 volts. Running it under 10 seems to do the trick.
Yes it has two wires. I'm game for any suggestion on how I can determine what it is. It's sealed in a water proof plastic housing so I can't open it. I do have the Controller System it was used with so I could open that up if it comes down to it. I did measure the voltage and amperage it was pulling but that's about as far as I know to check...