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???
06/07/02 10:24
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#24085 - small BLDC motor drive circuit / code
I'm experimenting with a BLDC motor without sensors. What I want is drive a <1W Motor with 1:625 gear to drive a focus adjustment for a small camera.

Has anybody a hint if:
-straight forward 5000U/min 120° signals are sufficient, perhaps with a startup procedure.
-open collector drive versus push pull drive?

right now, I made some tests with an old harddisk BLDC motor. But it turns always in the same direction, even if I change the pattern..

Werner



List of 7 messages in thread
TopicAuthorDate
small BLDC motor drive circuit / code            01/01/70 00:00      
> small BLDC motor drive circuit / code            01/01/70 00:00      
RE: small BLDC motor drive circuit / cod            01/01/70 00:00      
RE: small BLDC motor drive circuit / cod            01/01/70 00:00      
RE: small BLDC motor drive circuit / cod            01/01/70 00:00      
RE: small BLDC motor drive circuit / code            01/01/70 00:00      
   RE: small BLDC motor drive circuit / code            01/01/70 00:00      

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