hi everyone. I am brand new to motors so excuse the ignorance. I just ruined 3 disc drives I had trying to take out their motors. I think I destroyed all the motors because I didn't know what kind they were. Anyways, my question is kind of simple. All the disc drives have these little motors that have 4 connections. First what kind of motors are these, and how do I make them run. In other words, are two of them grounds and 2 of them power? I have been unable to make them run with that configuration. Also, I damaged some of the input pins. Can these be rewound by hand. Can they b rewound so that they only have a ground and a charge?
Thanks. And sorry for the stupid question. But today is like day 1 with motors.
linguabrain:
hi everyone. I am brand new to motors so excuse the ignorance. I just ruined 3 disc drives I had trying to take out their motors. I think I destroyed all the motors because I didn't know what kind they were. Anyways, my question is kind of simple. All the disc drives have these little motors that have 4 connections. First what kind of motors are these, and how do I make them run. In other words, are two of them grounds and 2 of them power? I have been unable to make them run with that configuration. Also, I damaged some of the input pins. Can these be rewound by hand. Can they b rewound so that they only have a ground and a charge?
Thanks. And sorry for the stupid question. But today is like day 1 with motors.
What do you mean by "disc drive" for starters? Hard drive? Floppy drive? CD/DVD drive?
Most likely (based on your "four wire" description) the motor is some kind of BLDC motor (especially if it is from a hard drive), which has a specific control requirement to get it to spin properly. Basically it works like a 3-phase brushless motor. You have to first ohm-out the coils and the common wire (three coils and a common - four wires). There is plenty of information on these motors on the internet, how to control them, get them to spin, etc.
If it is a floppy disc drive you are dealing with, it might be a stepper motor like the attached picture.
I have opened 3 different drives, and they all had the same motor.
The motor on the picture is a bipolar stepper motor, and you need two H-bridges to drive it, there are tutorials and schematics in the playground.
