Questions tagged [motor-controller]
Any circuit for driving a motor that's more complex than wiring it to a power source through a simple on/off switch. Examples include speed and torque control using H-bridges, brushless motor controllers, stepper controllers, VFDs. Constant speed examples include relay control, reversing, reduced-voltage starting, overload protection and other control requirements more complex than a simple on/off switch.
1,146 questions
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Can I use simple resistor dividers and ADC inputs for back-EMF sensing in a drone ESC?
I'm designing my own ESC for a simple quadcopter drone. The ESC is powered directly from a 4S LiPo battery, and I'm now working on the back-EMF voltage sensing needed for sensorless commutation. The ...
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Wiring Configuration for Manual Motor Starter [closed]
I have a Sprecher + Schuh KTA3 motor circuit controller (link to docs https://octopart.com/datasheet/kta3-25-1a-sprecher+%2B+schuh-20977284) which I will use for a 240 V motor in a sanding machine. I ...
- 11
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How to choose D_GATE and R_GS for UCC27712-Q1 gate driver?
I'm designing an ESC that uses the TI UCC27712-Q1 as the gate driver and AGMSEMI AGM403AP as the MOSFETs. I followed the datasheet recommendations for the gate driver circuit, but I couldn’t find any ...
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2 votes
1 answer
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How do I select MOSFETs for a 3-Phase Motor Driver DRV8302 Application
This is my schemaics (Design in accordance to DRV8302 Application note guidelines). How do I select MOSFET specs for this design? How do I determine what range of Vgs, Id, Qg, etc I need for this ...
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1 vote
1 answer
104 views
3 'Phase' BLDC Motor Control using Raspberry Pi 5
I am making a project to control speed and position of multiple 3 Phase BLDC Motors using a Raspberry Pi 5. I am struggling with the number of PWM channels I will need and the lack thereof on the Pi ...
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1 vote
1 answer
117 views
Torque calculations in AC motor
I am studying the theory of brushless electric motors and do not understand how to calculate the torque delivered by a motor. Let's assume a PMSM brushless motor using a FOC. I found these two ...
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Logic for the motor stuck fault
I am controlling the BLDC motor using Foc hall sensor, recently damaged the hardware by not incorporating sufficient safety logics. One i want to incorporate is the Motor stuck fault, the current ...
- 493
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1 answer
75 views
Measurement of resistance of BLDC motor
I am using a hub motor around 800W and want to measure the resistance of the motor, but do not have the milli ohm meter and also want to understand if the below technique can work. It is 60V motor so ...
- 493
2 votes
1 answer
101 views
Zero Electrical Degree of rotor in BLDC motors
After so much of reading different materials but most of the time getting confused with so much information, I assume I have arrived at an understanding of the zero electrical degrees in the BLDC ...
- 493
0 votes
1 answer
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Hall Sensor Output and Motor Back emf Relation
The following is the link of the document I am studying and trying to implement the trapezoidal control TrapezoidalControl but I am struck on understanding the Hall table Please explain me how do I ...
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1 vote
3 answers
121 views
Limiting Resistance Range of Potentiometer
Im working on limiting the resistance range of a potentiometer that feeds into a motor control unit. This motor control units runs an electric motor. We want to limit the joystick switch pot range to ...
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6 votes
3 answers
515 views
DIY BLDC motor makes buzzing sound when powered and refuses to turn
I have recently made a brushless motor. It has a 15 slot/20 poles configuration. I made the rotor from PETG and the stator from Iron filled PLA and I used 0.5 mm wire with 30 turns per tooth and 2 ...
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90 views
Quadrature encoder in DC motor control
I have two main question about the subject of "Quadrature encoder" of DC motors. I provide the following link of a DC motor with integrated encoder: https://www.aliexpress.com/item/...
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71 views
Sending DSHOT frames from a Nucleof4 development board to an esc
I’ve been working on implementing DShot150 on an Nucleof4 development board using HAL drivers with DMA, driven via a timer. I followed the DShot using HAL drivers implementation and even extracted the ...
- 1
4 votes
2 answers
253 views
Help analyze the role of the capacitor near the op amp in this circuit
This is the circuit diagram of a motor controller. The purpose of this circuit is to precisely control the motor speed, reducing the jitter per revolution to 10 parts per million. This circuit uses ...
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