Shunt reactor and filter/buffer capacitor for DRV8842 Motor Driver using a...
Hi,I'm new to design a Motor Circuit and need some technical help in calculating or choosing the right devices to drive a brushed DC Motor. First let me describe the Motor itself, or better the Motors....
View ArticleGUI Composer Generates an Error with my InstaSPIN DRV8312-69M_KIT
I have a DRV8312-69M_KIT, which worked fine several months ago. Now the software for the InstaSPIN has been updated with the new GUI Composer. After updating the software, the GUI generates an error...
View ArticleDRV8821 output suddenly disappeared
Dear Sir/Madam:I encountered a problem in our new PCBA with DRV8821. It works in previous PCB version, and there are some modification on other circuit, and DRV8821's RESETn connnection (to high...
View ArticleDRV8432 implementing Regen
I am using the DRV8432 with smaller motors under 4A’s on two machines on two other machines I am using a store bought solution. The other two are 7A and 12A respectively. My major issue at this time...
View ArticleStep by step tutorial for a beginner
I've bought a "Three Phase BLDC Motor Kit with DRV8312 and InstaSPIN-Enabled Piccolo TMS320F28069M MCU" from TI start learning how to driving motors.I'm a hardware engineer and my programming...
View ArticleDRV8301 drive EN_GATE pin in case of emergency
Hello, I was wandering if it is safe enough to stop the motor, with an emergency switch, by driving the EN_GATE pin of DRV8301 (all the gate of the NMOS will be in HiZ state)?It will be easier and...
View ArticleI made DRV8825EVM growl
Hello motor drivers forum, I had to write my own trajectory generator (the S-curve) that uses DRV8825 IC. I programmed the DRV8825EVM from CCS 5.3 using MSP-FET430UF, but ran into the motor "growling"...
View ArticleDRV8301 current sense ADC & isolator
Hello,Since DRV8301 has its own current sense amplifiers and our microcontroller has adc modules, we don't want to use an external ADC converter, but we still want to isolate DRV8301's output of...
View ArticleHV Motor Ctrl. Kit - Current Sensing
Hi,I am using HV Motor Development Kit + F28335 control card. I noticed that phase - B current measurement is more noisier than phase-A measurement. In addition I noticed that ADC-B4 line, on the...
View ArticleHVACIMTR: AC Induction Motor for TMDSHVMTRPFCKIT, Phisical Parameters
Hello,I have a question concerning HVACIMTR Induction Motor.This kind of motor is to be sent to me from TI store. Considering that this process may last 10-20 days, I'd like to have it's physical...
View ArticleDriving DRV8825 in parallel?
Hi,I need a current of about 4-4,5A. I have some of the DRV8825 here by me right now, so my question is: Is it possible to use them in parallel so I can reach the needed 4A?regardsPatrick
View ArticleDriver for Brushed DC motor-DRV8301?
My customer is designing with a brushed DC motor.According to the customer, the power rating on the motor is given as 0.3 Horsepower. This is a simple 2-wire motor and runs at a voltage of 12V. Based...
View ArticleDRV8829 decay mode
I am seeing some strange behavior in slow decay mode. Right now, I have slow decay when Current increases (quadrant 1 & 3) and mixed when Current decreases (quadrant 2 & 4).Background. We are...
View ArticleDRV8800 over current protection timing
Dear Texas Instruments I have implemented the DRV8800 into my design, while not using it as a motor driver, rather as a current protection and status feedback mechanism. The protection mechanism will...
View ArticleDRV8801: Fault condition, Rsense, charge pump, thermal pad
Hi TI-forum,Brush-motor design using DRV8801. Prototypes, hand soldered by skilled personal. UBB=24V, Inom=480mA, Iblock=2AIf Rsense is 120mOhm and a blocked motor cause more than 500mV at SENSE pin,...
View ArticleHC Motor control kit
Hi everybody on TI forum, This is Siva, am actually working with a 24 Volts 8A BLDC motor in the High current motor control kit with F28069 and DRV8301...
View ArticleDRV10963 control issues.
I am currently using a drv10963 driver to run some prototype motors. The issue I am having is that one version of the motor will not lock on after the startup sequence. It seems that the sensorless...
View ArticleDRV8301 Resetting
We are using the DRV8301 in a motor driver. At high currents (13-16A) the 8301 is resetting as follows:The contents of the Control Register reset to their default valuesThe Fault pin does not drop...
View ArticleGUI Composer for DK-LM4F-DRV8312 will not open properly
So after following the "Read me first" pdf several times, I cannot get the instant spin to work. The board is configured properly, the drivers are installed and showing up in device manager, and I have...
View ArticleDRV8844 Current Sense
Hi,I'm using a number of DRV8844 chips in my solution and am curious to know if there is any way I can sense motor current. I am using two outputs of the quad H bridge (a full H) to drive a DC motor....
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