.:madworm:.'s photos with the keyword: harddisk

A head

A head

.:madworm:.
23 Jul 2011 108
Having some trouble with depth of view here.
A head

A head

.:madworm:.
23 Jul 2011 101
Having some trouble with depth of view here.
A head

A head

.:madworm:.
23 Jul 2011 86
Having some trouble with depth of view here.
A head

A head

.:madworm:.
23 Jul 2011 83
Having some trouble with depth of view here.
A head

A head

.:madworm:.
23 Jul 2011 91
Having some trouble with depth of view here.
A head

A head

.:madworm:.
23 Jul 2011 92
Having some trouble with depth of view here.
Harddisk - stuff thrown away

Harddisk - stuff thrown away

.:madworm:.
23 Jul 2011 103
Harddisk hub motor

Harddisk hub motor

.:madworm:.
23 Jul 2011 144
It is indeed a BLDC motor. The coils are Y-wound. The left pad goes to the center point N, the remaining are the 3 phases U,V,W. Single-coil-resistance is about 1.6 Ohm. The disk's PCB contains a Hitachi HA13645 driver. Unfortunately I just can't find a datasheet for that. From what I've read so far, driving these with back EMF detection on the un-driven coils could be quite difficult. scholar.lib.vt.edu/theses/available/etd-09152003-171904/u... www.atmel.com/dyn/general/tech_doc.asp?doc_id=10416
Harddisk hub motor

Harddisk hub motor

.:madworm:.
23 Jul 2011 133
It is indeed a BLDC motor. The coils are Y-wound.
Coil + parking position bumper

Coil + parking position bumper

.:madworm:.
23 Jul 2011 128
Harddisk - heads and platters

Harddisk - heads and platters

.:madworm:.
23 Jul 2011 117
Magnet with parking position 'thing'

Magnet with parking position 'thing'

.:madworm:.
23 Jul 2011 112
I don't like what I see

I don't like what I see

.:madworm:.
23 Jul 2011 113
That's what I call a lot of corrosion.
23 items in total