The brushless-dc tag has no wiki summary.
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0answers
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Why do I have 60 degrees lag in the measured current of a three phase brushless motor?
When i calibrate the phases of the sensor through a driver I get the currents offset in 60 degrees as shown in the image
0
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1answer
135 views
choosing the suitable DC motors
I'm working on a 4x4 robot that is supposed to carry stuff total_mass=100kg (including the robot).
the robot should have average speed ...
0
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1answer
173 views
24v brushless DC Driver Pinout
I have some Brushless DC Motors with drivers and I need some help finding the pinout of the drivers.
Please take a moment to view the pictures here, clicking on a picture will show its ...
6
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3answers
3k views
Control differences between ac induction motor and brushless dc motor?
I have a fairly solid background in industrial AC motor control (soft starters, VFDs, etc.) but something that I'm certainly NOT well versed in is brushless DC motors... the type found in every hard ...
2
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3answers
241 views
What is this type of motor called?
Firstly some background:
I would like to make a magnetic stirrer, like the ones they use in chemistry labs:
A small bar magnet sits inside the glass jar, while another bar magnet, attached to a ...
4
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3answers
2k views
Understanding motor constants Kt and Kemf for comparing brushless DC motors
So for a practical definition, the torque constant Kt specifies how many Nm of torque you'll get from the motor at a certain current? Is a bigger Kt always better?
I am more confused about the ...
1
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2answers
1k views
What determines the speed of a brushless DC motor
When driving a brushless DC motor, which parameters control the speed. Is it the current in the windings, the voltage, or both? What determines the maximum speed? If you drive the windings with ...
0
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1answer
63 views
Debugging Vds exceeded in motor drive application
I have an existing motor drive circuit that uses an Allegro 4935 to drive a brushless DC motor. The circuit has been working fine. We've decided to change motors, now with some of the motors the ...
2
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2answers
943 views
Brushless DC motor runs fine in one direction but not another
We have changed BLDC motor suppliers and are seeing a new problem. In the old system the software commanded the motor to move 5 steps of X hall counts then stop. With exactly the same electronics ...
5
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2answers
1k views
Which voltage uses the “Kv” parameter in a BLDC (Brushless DC) motor?
According to the definition of a BLDC by Wikipedia:
\$K_V\$ is the motor velocity constant, measured in RPM per Volt (not to be confused with "kV," the abbreviation for "kilovolt")[6].
The ...
