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 0n/off switch.
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Will this MOSFET H-bridge motor control with end of travel disable switches work?
Thank you for taking an interest.
Very very amature here, but after a 2+ week of reading howtos and SE posts, validation would be greately appreciated.
Context:
Control by ESP32 MCU
30V motor is a ...
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Is it viable to connect multiple ESC units in series?
I am designing a system that requires a large number of low-power motors in a weight and space constrained application.
We have a high voltage power source of 400 V DC, that needs to run these motors ...
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What type of single-phase motors can I control using a frequency inverter?
I have a single phase fan, and I want to control the speed of this fan so it occurred to me to design a VFD for this purpose, but I was researching more about single phase AC motors and I read that ...
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Driver for controlling a 3-phase brushless AC motor
I got a motor that was inside an old centrifuge device. It's Chinese and does not have data sheets except the tag on it.
From this we understand the power, current, voltage, frequency, and maximum ...
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Smart ESC controlled over UART/SPI/I2C, to control an e bike wheel at very low speed
I work on a project for wheelchair users with only on functioning hand, I want to put a e-bike wheel, so a sensored hub motor, on the other side that mimics the speed of the functioning hand's wheel. ...
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Does anyone know what this symbol means on this functional diagram for the Faulhaber MCDC 3002?
I have this functional diagram of of the Faulhaber MCDC 3002 motor controller operating in current control mode. I can't work out what the block highlighted in yellow is actually doing. Is it an ...
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Termination for unused pins on motor controller
I am designing a motherboard for a motor controller.
The motor will be a BLDC motor. I will be using the hall sensor pins on the Motor controller but have no need for several of the features offered ...
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Advice needed for super low noise motor 15-30 rpm motor for diy project
I am doing a project where i have to rotate a hardboard disc of 20 inch diameter using a motor.
The disc is about a 1lb heavy. My current set up is using a 12V 20rpm DC motor from Amazon store:
https:/...
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How does ESC differ PWM and UART signals?
Many electronic speed controls provide the same hardware interface to manage them. It's +5 V, GND, PWM wires.
But I have noticed an interesting feature, which is provided by BLHeli based ESC. You can ...
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How to drive high and low side FET with 3.3V microcontroller?
This picture describes the current state of my project that I am working on. I am making a half-bridge high-current motor driver (that will eventually evolve into a full-bridge). The motor is ...
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Gate-source voltage waveform in brushless motor drive
What should be the gate-source voltage waveform of the upper side MOSFETs in a brushless motor drive with a trapezoidal control method?
Are these parts marked in red in the picture above normal?
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Change speed of DC motor using A5950
I want to change the rotation speed of a DC motor using a A5950 driver.
Reading the datasheet I don't find anything explicit about how to change the speed.
Looking at Table 1:
my first thought was I ...
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Universal motor – electronically reverse rotation
I would like to modify a sewing machine motor so I can reverse its direction electronically.
Domestic sewing machine motors are universal motors with two wires – the input AC is connected through the ...
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"High" current MUXing of 4 HD LRA (AC voice coil) haptic motors
First off, thanks in advance for reading and for any ideas. Please forgive my ignorance on certain things; I'm a new industrial designer with some electronics experience, although I'm not an ...
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Regulated voltage supply for a PWM motor controller
I'm trying to build a 48-54 V linear regulated power supply for a CNC motor controller and I'm looking for some suggestions for a beginner. I have very little experience when it comes to circuit ...
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SVPWM Simulation
I am a student and I want to develop open loop SVPWM code with stm32. I created a Simulink model by doing research on the internet. But I have a few questions for you. The model I created is as ...
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How can I reduce the spark while connecting the battery?
I've been working on a drone that works on a 12S batter (maximum 50.4V.) I am using an Amass XT90 anti spark Connector to connect the battery to the power distribution board (PDB.)
The drone has an ...
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My first circuit, can you critique please?
I designed my first circuit and tried to make it as good as I could. I would be very pleased if you criticize me on the issues that I am lacking and doing wrong.
I made a 2-layer, full bridge brushed ...
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3 Brushless 40v Ryobi Motors with factory controllers; 4 12v 149Ah batteries in series for RC mower
First off I would like to say I am not a electrical engineer and know little to nothing as to what I need help with.
I have 3 40v Ryobi push-mower motors with controller off eBay:
Long Story short I ...
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Motor speed controller for a 12 V motor using NPN transistor is too narrow in the input voltage
The current circuit:
The voltage supplied to the resistor to get 6 V output is 7.0 V input.
The voltage supplied to the resistor to get 12 V output is 7.3 V input.
What type of circuit would allow ...
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Differential Pair routing for motor shunt current sensing
I am laying out an ESC - VESC design - and I came across a few papers from TI, ST, and ADI talking about running the sense lines from the phase shunt resistors to the amplifiers/CSAs as a differential ...
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Dahlin_Controller ringing and saturation
I have designed a digital controller to control a DC motor. The motor has the following parameters:
...
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Open-loop BLDC motor control using SPWM
I am a student who is still very new to developing sensorless FOC software. What I'm trying to do now is to open-loop control a BLDC motor using SPWM (to get theBEMF values required for the close ...
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Sensorless BLDC motor alignment methods
I have been trying to make a FOC for BLDC motor controlling, but I am stuck at the state that before open loop state which single alignment of the motor control. The question and the explanation is ...
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DC control using BJT
I have a DC motor control circuit as follows, but I don't understand its working principle. Can you explain it to me?
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DRV8871 output voltage drop down error identify
I'm building a brush gear motor driver with TI drv8871. No speed adjustment needed, only forward/reverse is wanted.
The input voltage is 24V. The motor has a small coil resistance about 2.6 to 3.0 Ohm,...
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Controlling several gear motors with encoders from one Arduino
I am working on a project making a robotic hand that uses several (around 20) gear motors with encoders. I'm using this dual motor driver to drive the motors. The motors are paired into ten sets of ...
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What Li-po battery do I need to power an ESC30A and a 2200 Kᵥ brushless motor?
How can I calculate the current and voltage needed to find the right battery specs? If I have four brushless motors, would I need four batteries, or is there a way to use one (this is for a drone)?
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How do I choose an ESC for my plane motor? How do I set the current?
I made an airplane and I have to choose an ESC for the motor. This motor can operate at values such as 12 V-16 C (current), 8 V-9 C, 12 V-20 C, and 8 V-12 C.
I want to run it at 8 V-12 C. Should I ...
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Measuring Motor Speed in an analog circuit - (no digital components)
I have been searching for several resources on closed-loop analog motor control. Most of them used a tachometer for speed measurement, which makes a lot of sense because the tachometer is analog and ...
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How can I control four 12vdc motors?
I have four of these motors (scroll down to see specs): https://www.aliexpress.us/item/3256801634996956.html?
I want to be able to turn on one motor - then, two - then, three - then, four, running ...
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ESC design layout and noise interference question
I'm laying out an ESC (sorry can't post photos) and I'm trying to squash any noise on the board. I unfortunately have limited space which requires me to run LV signal traces from my current sense ...
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BLDC high-side MOSFET switching - bootstrap confusion
I'm designing a motor driver and I have had too many MOSFET explosions lately.
Following the typical application guide on ROHMs data sheet, I am confused on whether I need to actually bootstrap the ...
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How do I find BLDC motor and controller ratings?
I have recently purchased a 24 volt brushless DC motor set (underwater thruster) along with its controller. Here is the link to the product.
The description says it's 1000 watt but when I tested, it ...
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How to prevent a short-circuit (not shoot-through) with this half H-bridge?
I have two of these common nMOSFET trigger modules:
The schematic is essentially this (D4184 FETs replaced with similar logic-level FET as Multisim doesn't have the D4184/AOD4184):
With these two ...
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Unusual problem in the motor starter (motor controller)
I am facing problem with a direct motor controller (motor FLA = 10.2 A), the motor starter means are: contactor (Schneider LC1E1210M5), circuit overload protection (hager AFP66H) and motor overload ...
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Why are my transistors failing?
I'm trying to make this supposedly simple motor controller.
Here's a brief history of past events, though I'm not sure they're related to what I'm facing now.
I've built the schematic half on ...
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ODrive mounting connectors
I have to connect motor voltage wires to an ODrive motor controller. I can't find 3-pin mounting connectors to solder to the controller that fit the configuration. Does anyone know what they are ...
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Fixing runaway sewing machine - blown transistor?
Disclaimer: I know very little about electronics, but I'm willing to learn as I go. My experience consists of playing with Arduinos and fixing a lamp by soldering a replacement switch. Please be ...
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Methods of calculating the turns of a DC electric motor
The motor shown in the picture will be used as a pump, its main task will be
to move the piston forward and backward. The result of its operation should be to push the air to a certain
value. ...
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How can I detect the source of current in this circuit
I have designed this inline motor soft starter circuit:
The input is switched externally. When it's turned on, the MCU powers up and produces a ramping PWM output which gradually energizes the motor.
...
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Controlling sewing machine motor speed with input from a pressure transducer
I would like to control the speed of a sewing machine with the output from a pressure transducer. The sewing machine motor is 230VAC (50Hz) universal motor. I am going to use an MPS20N0040D-D ...
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Does controller PWM frequency need to match ESC PWM frequency?
I am working on a project now where I have encountered a new class of hardware called ESC (electronic speed controller). I am looking at this ESC now: https://www.amainhobbies.com/hobbywing-quicrun-...
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What type of motor is in my 110 V, 9 A, variable-speed drill press? It is 60 years old
It quit working. It has AC power going to a small circuit board (which has a small transformer on it), but no power coming out to the motor. It has 2 brushes and a commutator.
I was thinking the ...
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Circuit review - 12 VDC motor speed controller (555 based)
I thought I'd post this, its a project I made for fun. I didn't order the boards yet, but I spent a decent amount of time trying to make sure this will work.
It's based on the MAX14871 motor driver ...
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AC motor speed control circuit
I connected a circuit found on the internet:
Results:
When the AC motor is connected to the closed circuit, it did turn on, but the speed of the motor keeps increasing on its own without turning off, ...
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Current Sensing Trace Routing
I'm developing a motor control board (sensorless FOC). I have a question about the differential pair traces, they are very long (the longest is about 80 mm) and crosses several gate lines. How bad is ...
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Using a Zener diode MOSFET gate voltage control circuit
I have a little problem with my simple project.
I want to control a 24V / 4A blower motor.
It works okay, but the MOSFET gets too hot.
I used a Zener diode to make the gate voltage above 12V, but it ...
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Hooking up a BLDC motor
Toggle Switch Connections
I want a welding turntable able to turn 500 pound chunks of metal with room to spare. The vertical load with the table horizontal is no problem, it's when I went horizontal ...
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DC motor speed selector switch
I would like to have a switch to select the operation mode of the DC motor (half speed / full speed). The DC motor is 12V 1000W.
Is there a more simple way than using a speed controller (h-bridge)?
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