I've stripped out an old IDE (40 Pin) HDD from 1998 for use in a POV display project (Gr. 12 Computer Engineering), and I've been trying to spin it up.
The problem is that the HDD motor is brushless DC, so it requires more than just a ground and source connection. Our electronics has a max output current of about 200mA (555, transistors, other ICs), so I can't work with those.
Connecting the HDD with the PCB to the PSU will only turn the motor on for about 15s before it shuts off.
The HDD is completely stripped with only the motor and the PCB screwed into the base. The motor has 4 pins. From the time I spent playing with it, there's 1 pin for ground, and 3 other pins that I think is for the 3 pairs of coils.
- Fujitsu MPB3043AT
- 12V DC 0.32A
- 5V DC 0.5A
- Arduino Uno
- Old HDD
- 9V battery
- 1.5V batteries
- 74HC164 8 bit sihft registers
- 555 Timer IC
- 3904/3906 Transistors
- Capacitors, resistors, potentiometers
What options do I have to get the motor to spin (Preferably without the PSU, but I'm open to options with the PSU)? Is there a pin on the IDE that will allow me to turn it on/off?
UPDATE 1: I fiddled around with the IDE cable. When I connect pin 27 (IO Ready) to pin 2 (Ground), the motor started spinning as if I just plugged it into the PSU, but only for about 10s. And I had to wait a few minutes before I can get it to spin again using this method
UPDATE 2: Turns out the motor is only 5V and not 12V, that should ease things up a bit