Questions tagged [motordriver]
The motordriver tag has no usage guidance.
111
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How do I select the correct motors for my drone project? Suggestions? [closed]
I am currently working with my team of 3 on an autonomous quadrocopter, which can fly to an address selected by a user on a mobile using Deep Learning, GPS and sensors (LIDAR, Ultrasonic, ....).
The ...
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Filtering of current waveform from PMSM motor [closed]
I am trying to implement the current control closed loop for my AC servo drive. I have installed a current transducer to get the waveform of my current being passed through phases U and V. The ...
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1
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BTS7960 current limit [closed]
I want to ask about current limit at BTS7960. I'm not clearly understand when read the bts7960 datasheet. I have using 24 V 20A power supply connect to BTS7960 then connect to 24 V 14 A DC motor. When ...
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L293D motor driver resistor network confusion
I've been trying to modify the original Adafruit V1 L293D motor driver, but have run into a bit of a roadblock when reading its schematic. The text labelling the resistor network has stacked and ...
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Are the full bridge rectifier on a IGBT pack switching, fast or Schottky diodes? [closed]
In a skiip24nab126 IGBT pack for motor VVF drives: are the 3 phase full bridge rectifier diodes fast Schottky or switching or just normal / common diodes like 1N4007? Does the rectifier need to switch ...
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BLDC motor with a common enabled configuration
Can a BLDC motor be driven with a common enable configuration? To be more precise, without the possibility to leave a phase of the motor floating. Every phase must either be connected to Vcc or to GND....
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How should I configure the TRQ pin on the DRV8847 Dual H-Bridge motor driver for Independent Bridge Interface mode?
I'm looking into motor drivers for a design update and I'm leaning towards using the DRV8847PWPR. If I go with it, I intend to configure it for an Independent Bridge Interface (shown in section 7.3.34 ...
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Stall current in BLDC too sudden for control
I'm working in a wheeled robot where each BLDC motor is controlled by a driver. These drivers are designed by ourselves and are working fine, they use Hall sensors and encoders for speed feedback loop,...
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102
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Can an L298N motor driver run a linear actuator?
I am new in Arduino and electronics. I am trying to run the Sumret SRA6000 linear actuator with an L298N motor driver. Will it work? If not work, what motor driver can I use to synchronize both linear ...
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TMC5160 the outputs signals do not work correctly
I have a Problem with TMC5160.
I use the spi communication and I have measured the signal, they are correctly.
But on Output of TMC5160 I have a problem. My MOS-FETS do not work correct. I measure on ...
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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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Validating motor control architecture using Raspberry Pi hardware PWM
I need a validation that what I am doing is correct. Please look at the part of schematic shown below.
I am driving two linear actuators through Raspberry Pi 4b. Both enable pins of each motor driver ...
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35
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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 ...
- 1,160
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Help me identify and run this motor
I've found a non-functional orbital shaker made by Stovall. When plugged in the power LED turns on , but the motor doesn't run. I thought I'd open the case and try to figure out what went wrong.
There ...
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A bit of confusion with DRV8210DRLR motor driver
I am working with DRV8210DRLR motor driver, mouser says it is a half bridge controller, texas instruments that it is a H-bridge. I require to spin motor and be able to change direction, so I assume I ...
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How to calculate the amount of bulk capacitance for motor drive?
I'm working on designing a 3-phase motor drive with an input voltage of 22 V and a maximum phase current of 160 A that might go a bit higher. The switching frequency is around 100 kHz and the maximum ...
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Troubleshooting BLDC gate driver with PIC16F
Attached is a simplified single phase (repeated for all 3 phases) schematic. I have simulated a 6 step block commutation (trapezodial) using LEDs as high/low steps; rotor feedback from a small motor ...
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LEM Sensor's output for current polarity change
I have a project where I'm trying to build a DC Drive, using just analog circuits. I'm expected to show the operation of the drive in forward and reverse motoring, and I'm trying to pick between the ...
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43
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Gate resistor calculation for IGBT driver with bootstrap method
I need to calculate the Rg,on and Rg,off values you see in the picture. I need to find the max and min range. The IGBT I am using is CM225DX-34T and the gate driver I am using is 2SC0435T. Can you ...
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Identifying a maybe bad SOT23 transistor
To give a bit of background, I'm trying to fix a friend's NeoGeo CD console which doesn't read disc: The disc doesn't spin at all, the laser assembly and lens are moving, the diode turns on. But it ...
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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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How to improve efficiency of a "dead simple" motor driver - are more MOSFETs better or not?
This is a follow-up of that question.
The only reason I've got 8 transistors on that schematic is efficiency. I'm now trying to figure out whether switching losses are making it pointless to have so ...
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Problem in switching MOSFETs in brushless motor drive
I have designed a brushless motor drive, the schematic below shows the connection of gate drive and MOSFETs:
In general, the drive works well, but there are some problems with the switching of the ...
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92
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Motors latching on - diy RC car
I am building a little diy RC car/robot from salvaged parts. Here is what I am using:
Chassis and motors from an old RC car. They are normal hobby/toy motors.
MX1919 motor driver from something (...
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56
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ATmega2560 fast enough?
I want to drive a servo with the ATmega2560. I'm wonder if it can handle the 10 kHz encoder at full speed and the 3-phase chopper the driver has to operate (runs at 12 kHz).
Or do I need to start ...
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2
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What is happening at the motor with those protection elements: ferrites, varistors, capacitors and diodes?
Could someone please explain what is happening here? How do the individual elements on the right side of the driver at the motor help the motor driver circuit and motor? How is the correct value of ...
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361
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How to get the back EMF graph of my BLDC motor in an oscilloscope?
I have a BLDC motor and its controller. How can I see its back EMF graph using an oscilloscope provided I can see the phase-to-phase voltage graph?
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MC33887: input current on outputs
I am using the MC33887 driver to control a 24V brushed DC motor.
What can happen to the MC33887 driver if there is an incoming current at the motor pin output OUT1 and OUT2 (e.g. also if an electric ...
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103
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Does this circuit need these resistors?
When I started learning electronics, I dived straight into the deep end, and missed some important beginning knowledge. I know how to use I2C communication but I don’t know what to do here.
I am ...
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TLE 2505 H-bridge not working
Using a 9.4 V power supply and the TLE 2505 H-bridge, I ultimately want to drive a DC motor. Currently I'm debugging using a 12 kΩ resistor in place of the motor on a breadboard and using an Arduino ...
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Can I safely overvolt DC-brushed motor when using a driver?
I'm trying to use a car jump-starter to power my robot and for some reason its voltage is not 12 V but in the range of 15-16 V.
I have step-downs for logic and servos, but my main motors are connected ...
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ESD protection and MOS driver concerns for H-bridge
I have been working on a H-bridge design that controls a 12V motor to rotate forwards or backwards at an adjustable speed using PWM from an Arduino. The motion starts slow and increases to max speed ...
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213
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Failing diodes and shorting NMOS and PMOS in H-bridge at 19A
I have been working on a H-bridge design that controls a 12V motor to rotate forwards or backwards at an adjustable speed using PWM from an Arduino. The motion starts slow and increases to max speed ...
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Do I properly use Toshiba H-bridge TB67H400ANG?
I am new in this forum, so I am sorry if I don't properly ask my "question".
I am a beginner in the making of circuits and Arduino programming. (first time using an H-bridge, first time ...
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What is the relationship between 3 phase motor driving signal and its position encoder?
I have this project to add a magnetic encoder on the motor shaft that will allow speed control by utilizing a TB67B000AHG chip as a driver. I want to install 3 magnetic Hall sensors HW101 stationary ...
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Low side driver and flyback diode
I wanted to control electric door lock (12V, 1.5A peak, unlocking time < 200ms) with Self-Protected Low Side Driver like NCV8412 (https://hr.mouser.com/datasheet/2/308/1/NCV8412_D-2317556.pdf). One ...
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Controlling two DC motors with single driver IC
I've designed a PCB that drives two DC motors with two MC33886 DC motor Driver ICs, controlled by an MCU for PWM and direction. The max. motor current is about 3.5 A.
It works perfectly but now I'm ...
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369
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Transfer function of an H bridge circuit
Hey guys I'm trying to find the transfer function of the given circuit. It is an H bridge motor driver circuit. I have tried to find a spice model for these chips but could not find anything. Any help ...
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Half bridge motor driver; best motor placement?
The two options:
I have been scrolling through forum after forum for a unilateral agreement on what the best motor placement would be within the half-bridge driver circuit: Putting the motor across ...
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What should be the current requirement during selection of a brushed DC motor driver, stall current or maximum power current?
I am considering two 50:1 metal gearmotor 37Dx70L mm 12 V with 64 CPR encoder (helical pinion) from Polulu for an autonomous mobile robot.
I am looking for a motor driver to control the speed using an ...
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Understanding a SMD Motor driver IC (heat dissipation and control)
I am designing a circuit to control a 12V, 3A electric pump. I thought the driver rz7899 is very handy.
The datasheet gave me the following doubts.
Is it ...
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419
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L9110 motor driver burning after some random time
I did a quick prototype of a plotter (two motors for x and y axes, one servo for the pen up/down).
I'm using a L9110 module (dual H bridge board) to control the x and y motors. The power supply for ...
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194
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Multiple brushed DC motors controlled by a small microcontroller
I have to control 10 brushed DC motors from a microcontroller. I am using an H-bridge driver for each motor which controls the speed (PWM), direction (High/Low), and enable/disable.
So, for each motor ...
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CS-D808 and NEMA34 undervoltage
I want to drive stepper motor with CS-D808 (30V-80V) but I don't have enough power, I have 24V. I couldn't move stepper motor. Is this because of power?
Here is my Arduino code:
...
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424
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H-Bridge Problem: Vgs dropping with increased motor speed
I am developing an H-bridge for use with 48VDC brushed motors. The bridge is implemented with discrete DPAK N-channel MOSFET transistors driven by an HIP4081AIBZ. I have not yet fitted RC snubbers ...
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How do I control the speed of a simple DC motor based on the output of a machine learning algorithm using a Raspberry Pi?
Let's suppose there is a simple machine learning algorithm for detecting speed limit signs using image recognition and it detects a 30 km/hr sign. Is there any way to send instructions to my motor ...
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175
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High-power motor driver without driver IC
I'm developing a circuit to power a 300W DC motor with 25A rated current. I have experience powering smaller motors with motor driver ICs, but I can't seem to find an in-stock motor driver IC designed ...
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How to deploy a motor driver and MCU onto larger sized robot without a PCB?
The robots I built previously were all similar to the 4WD Kit from amazon. With these kits it's easy to use an H-Bridge breakout similar to this and using a perfboar to solder to the connections to ...
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497
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How to check if L293D IC is working or not with a multimeter?
I know it is probably better to toss out a doubtful IC for a new one, but I would like to know if there is a way to check if the IC is faulty using a DMM.
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How to limit current output to 1A from 12V lithium ion battery
We are making a simple bot that uses a 12 V lithium ion battery,which is connected to a
power module, for 5V and 3.3 V output. Now I connect a TB6612FNG motor driver with ESP32. The ESP32 is powered ...
