Hard Drive Motor Controller Circuit

Hard drives disk have high speed low profile brushless motors that can be re used called bldc.

Hard drive motor controller circuit.

5v 12v dc brushless motor driver board controller for hard drive motor 3 4 wire. The following signals are used to control the disk drive stepper motor controller circuit. Hard disk controller known as the adapter of hard disk driver is the interface device between computers and hard disk driver. Hard disk controller is used to receive and interpret the computer order and then send various control signals to hard disk adapter.

In most cases motor controller chip burnt can be seen by eyes. First you have to select the drive by connecting the correct drive select signal to ground. Requirement 1 nos salvaged hard disk motor 1 nos 555 ic 1 nos 4017 ic 1 nos l293d ic 4 5 nos leds. Also it detects the hard disk driver status.

Your hard just quit and it has some priceless data that isn t backed up. This is a long shot but worth trying in some cases. The motor maximum speed is 4500 rpm 75 rotation second and the maximum power is reached during the seeki n g phase is about 6 4w. These tools allow students hobbyists and professional engineers to design and analyze analog and digital systems before ever building a prototype.

The stepping is controlled using. In this projet i re use a bldc motor that i retrieved from an old hdd the seagate st31722a it s a 3 5 inch hdd and 1 7gb of storage capacity. Online schematic capture lets hobbyists easily share and discuss their designs while online circuit simulation allows for quick design iteration and accelerated learning about electronics. We can see a burnt hole or raised part on it.

Tvs diodes short circuit can be test by a multimeter. Most hdd pcbs failures are caused by motor controller chip burnt then the tvs diodes burnt and main controller ic burnt. Suitable for hard drive brushless dc motor brushless dc motor drive and other miniature 3 wire or 4 wire brushless dc motor without sensor. The new l7208 hdd motor controller integrates all of the circuits needed to control and drive the hdd spindle motor and voice coil actuator including all the necessary power fet devices and is designed to save space and to minimize the drive s power consumption.

This is much more likely to work on a brand new drive that just.