Hey yo, does anyone know a good way to figure out how to drive

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Anonymous
2016-08-25 02:46:02 Post No. 1043548
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Anonymous 2016-08-25 02:46:02 Post No. 1043548 [Report]

Hey yo, does anyone know a good way to figure out how to drive these kinds of brushless motors? They're from floppy disk drives. The one I have has six wires coming off it, and it's chip is an LB11917.

Anonymous 2016-08-25 03:31:05 Post No.1043570
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Anonymous 2016-08-25 03:31:05 Post No.1043570 [Report]

im thinkin they go to those fancy gold pads commin out of the wires

g
vcc
clk
spd
5/5?
I?

Anonymous 2016-08-25 03:38:13 Post No.1043572
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Anonymous 2016-08-25 03:38:13 Post No.1043572 [Report]

>>1043570
I should clarify that the pic is not mine

Anonymous 2016-08-25 04:47:25 Post No.1043598
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Anonymous 2016-08-25 04:47:25 Post No.1043598 [Report]

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The six wires probably are for controle the chip LB11917 (I just found the datasheet for the LB11920 -- PWM drive motor three-phase).
So these wires are for control the IC that drives the motor.

These motor can have two configuration.
Three coils and common or only three coils.
You can spin using PWM in each coil with delay between phases. It's very hard to do, because you need a closed-loop controller since it can lost the synchronization very easy in open-loop.

So I recommend you search about that LB119XX and figure out how to use it.

Anonymous 2016-08-25 19:37:17 Post No.1043865
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Anonymous 2016-08-25 19:37:17 Post No.1043865 [Report]

>>1043548
Are you sure it isn't a stepper?

Anonymous 2016-08-26 11:29:23 Post No.1044244
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Anonymous 2016-08-26 11:29:23 Post No.1044244 [Report]

>>1043572
Can you post a pic of yours then?

Anonymous 2016-08-29 00:50:20 Post No.1045466
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Anonymous 2016-08-29 00:50:20 Post No.1045466 [Report]

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>>1044244

I'm aware that Imgur.com will stop allowing adult images since 15th of May. I'm taking actions to backup as much data as possible. Read more on this topic here - https://archived.moe/talk/thread/1694/

I'm aware that Imgur.com will stop allowing adult images since 15th of May. I'm taking actions to backup as much data as possible.
Read more on this topic here - https://archived.moe/talk/thread/1694/