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Questions tagged [motor-controller]

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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.

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I am attempting to repair a control board for a tool at work. Unfortunately I can not identify the exact component that has failed. The replacement board is $600 and more than 10 years old. My thought ...
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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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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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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 ...
ECE Student's user avatar
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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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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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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 ...
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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 ...
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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 ...
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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 ...
rajesh's user avatar
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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 ...
gummy12's user avatar
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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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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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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 ...
Santhosh's user avatar
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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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I am confronted with the following problem: I’m modeling a force-controlled linear motor using a Beckhoff drive and a standard PI controller (Parameters from the datasheet / values from taken from ...
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I'm currently working on the PCB layout of my 3 phase motor drive unit. The circuit will be powered a 150V bus and output around 1kW power. Q1 to Q6 makes up the 3 phase inverter bridge. IC1, IC2 and ...
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I use current sensor to prevent too high current in DC motor. Logic is powered by STM32F103C8T6 and it gets output values with ADC. This scheme (differential amplifier on Rail-to-Rail op amp) gives ...
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I'm hoping someone could help me out with this one final issue with my project. I have an ESP32 that controls a magnetic starter. The issue is when the magnetic starter hits the off switch, the esp32 ...
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I have one simple question related to changing direction of a 220V split phase AC motor. Here is the circuit diagram: The operation is as follows: When relay 1 is activated the motor rotates in one ...
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I recently saw a really good video from MPS about buck converter design for automotive applications (Video) and they pretty good explained how to shield the switched loop and cut the GND pour on the ...
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Background; Mechanical Engineer here and long out of college. I am completing my first home automation project using a PLC, goal is to better my understanding of industrial controls. I need hardware ...
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When designing an inverter from scratch, what factors should be considered in selecting the switching frequency? Specifically asking for: 20kW - 40kW traction inverters for motor control using SiC ...
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I have two pin connector which consists of +50V and ground. Depending on scenario, +50V and ground will be swapped which is controlled by external circuits. So I only see either -50V or 50V. My ...
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I have been trying to implement this bldc circuit in Proteus It is based on another circuit here. However, I can't get it to work with microcontroller. When I tried this circuit: in the bid to ...
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I am designing a BLDC motor controller board, up to 40V and 30A. It seems like it is working at least pretty well, the motor I am driving is spinning pretty smoothly. I measured the current of a ...
Nick's user avatar
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For the past week, there's been a robot vacuum (Lydsto R1) in my home that has started moving on its own. Although I mark the area it’s supposed to clean, it fails to reach the designated location and ...
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I am designing a custom ESC for a quadcopter. I am basing my design on a STEVAL-002V1 evaluation board. I tried the motor I am planning on using on the evaluation board and it works fine. However it ...
ifez's user avatar
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I recently bought a Chinese-brand refrigerator. It looks like decent quality engineering, but: a monitor in another room turns off whenever the compressor switches on or off, my laptop display gets ...
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1 answer
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I am building a simple ESC for a BLDC motor for a quadcopter drone. In order to save up space I chose to use the DRV8323RHRGZR half-bridge driver that also has an internal buck regulator. As the power ...
Robert's user avatar
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Currently I am doing calculation of V/F control for Induction motor (IM) control using Matlab. I do simple voltage and current calculation based on the equivalent IM circuit. then get the torque based ...
Panco Converter's user avatar
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I'm designing a simple ESC for a BLDC motor using the DRV8323RHRGZR gate driver to control 6 MOSFETs. I'm operating the DRV8323 in 6x PWM mode (hardware control), and I'm not using the current sense ...
Robert's user avatar
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This is my first time trying to make an H-bridge. Are the MOSFETs, gate drivers, and the configuration of the PWM signals correct? What could be changed to make it better? I'm trying to run 12 V ...
Lobster's user avatar
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I have this BLDC hub wheel motor: https://www.alibaba.com/product-detail/Low-Speed-Big-Torque-500W-13_1601107514377.html?spm=a2756.trade-carp.valid-supplier.3.2a913192a4Sp7y Which I control with this ...
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I would like to know: The role of the SCR T80 in regulating the motor speed, which is already controlled by the PWM signal from the T77." Is the R23, R11, and R10 network used to measure back ...
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2 answers
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My son has built a motorised car at school using a small DC motor, powered by two AA batteries and using two switches, one at each end. The idea is that the green one at the front will cause it to ...
David Simpson's user avatar
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3 answers
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I am designing an ESC for BLDC motors for learning purposes. For the dimensioning of the MOSFETs, I want to calculate the RMS phase current so I can calculate the switching losses of each FET. The ...
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I made this H-Bridge using MOSFETs and BJTs for gate driving, and I want to make sure it works before I build it. The circuit runs at 24V, using N-channel and P-channel MOSFETs for switching. For the ...
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The circuit is just a vanilla h-bridge (which is functioning fine except for the aforementioned current problem). PNPs up top. NPNs down below. I'm pretty sure this is due to my lack of understanding ...
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I am facing an issue and need your suggestions to solve it. I am using an electric cylinder with a 12VDC power supply, a speed of 5mm/s, a pushing force of 6000N, and a stroke length of 100mm for a ...
Levis Brian's user avatar
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Assume we want to control a speed of a DC or BLDC motor using some digital controller, let's say a the PWM module of a PIC Microcontroller. the ducy cycle of a PWM module may vary between 0 and 1023 ...
learn design's user avatar
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I'm trying to understand the differences between the hardware of a simple RC ESC, like the ESC described here, vs the hardware of a motor controller that implements FOC + SVM. This has started with me ...
louis's user avatar
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I'm relatively new to PCB design, especially to 4 layer designs and I'm currently working on designing a PCB board with integrated motor drivers and an ATMEGA2560 microcontroller. The motors for which ...
hdaniu's user avatar
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1 answer
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In the wiring diagram of the KITO ER2 single-speed chain hoist, what would be the operational and electrical impact on the motor if both the up and down switches are pressed simultaneously? ...
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1 answer
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I'm attempting to reverse engineer a window curtain motor board. I'm very much a electronics beginner. The board has two ICs marked "7E" (labeled Q3 and Q4) that I'm unable to determine was ...
Halfdone's user avatar
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3 votes
4 answers
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I am working on a project that has an LN298N driver control 2 motors. I am using this video for the basics: https://www.youtube.com/watch?v=H1Fzil_VUq4&t=162s There is just one thing that confuses ...
user3553471's user avatar
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2 answers
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I am working on an electric car and trying to tune the PI of the current controller. I encounter an overshoot (the controller is shutting down,) but the thing is that, this happens after the setpoint ...
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5 votes
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System: Surface PMSM with Hall sensors. Load: another identical motor in a deathmatch dyno. Vibrations: significant, the shafts in the dyno are slightly misaligned. Hence, the speed feedback is very ...
w00t's user avatar
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This is a water pump in a cooling loop. The input signal is a PWM input and output(fg) is a time based output. I have attached the signal descriptions and images from the manufacturer. I can't ...
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I'm working on project for which I'm trying to repurpose a hoverboard motor. I want to follow the schematic below, except I want to use an Agilent bench top power supply in lieu of a battery for ...
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