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3phase bldc hall sensor problem

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Anomis

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Hello my friends,
I am trying to drive a 350 watt,3phase, BLDC motor (DGW07-20j model) with stm32 micro controller. But I have problem with hall sensors because their outputs are not similar to the hall sensors which I have seen on the internet.
I connected the sensor supply to +5v dc (according to the sensor pcb guide). Then I connected two of hall sensor outputs (2of3) to the oscilloscope channels which is shown in the following picture.
Unfortunately, I couldn't find the model number of hall sensor or related data-sheet. But I connected the supply and outputs based on printed pinout guide on pcb. You can see these connections in this picture...
The motor was working while I captured the hall sensor outputs but clearly not not in a good way because the switching phase timing should be adjusted using hall sensor outputs.
photo5938057484226899319.jpg
photo5938057484226899320.jpgphoto5938057484226899318.jpg
 

KlausST

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Hi,

I wonder myself how we can help you.
Without part name / datasheet, without circuit, without test conditions ...
A scope picture without informations...

it's almost impossible to give good assistance.

Klaus
 

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