DRV8308EVM unstable and no lock
.I am trialling a DRV8308EVM to run a Papst ECA 18.08 http://www.ebmpapst.com/en/products/motors/ecigearmotors/ecigearmotorsdetail.php?pID=54331With the motor not loaded or driving anything, I can get...
View Articlestepper motor vector control
Anyone have a recommendation for the output drivers for driving a stepper motor using vector control.I've looked at a number of the parts and they either have an indexer in them that you can't get...
View ArticleDRV8802 Inrush Current Protection
Hi,Could TI helps to clarify the "Inrush Current Protection" additional feature of DRV8802 mentioned on the parametric table comparison between DRV8802 and DRV8814 found on the DRV8802 product page?We...
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DRV11873 - is not worked with initial power up
Hi...My customer is applying the motor drvier(DRV11873) but there is a problem that the BLDC motor is not workedsometimes when DRV11873 is initially powered up and then if DRV11873 is re-powered up,...
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DRV8828EVM / waveform of motor current
Hi team, My customer is evaluating DRV8828EVM+103H7823-57XE40(stepping motor:SANYO DENKI).http://www.q-tech.hu/pdf/SanyoDenki/2%20phase/60H%20-2ph_F2-SteppingMotor.pdf He pointed out that the motor...
View ArticleDRV8301 3 PWM vs 6 PWM mode
I'm going to be wiring up a DRV8301 to an MSP430F5638 and I'm confused as to why I would choose a 6 PWM control mode over a 3 PWM. The positioning on this device doesnt need to be super-accurate for...
View ArticleDRV8312EVM_RevD withF28069M
HiI purchased aDRV8312EVM.Iwant to makeaprogramthat utilizestheCCS6,were identifiedmotor,and then rotatethe motor.Iwassure that theGNUin the pathof thefollowingto work.C: \ TI \ guicomposer \ webapps \...
View Articleminimum delay for each sequence of motor.
Hi all,I am using microcontroller (MKL46Z256VLL4) and stepper motor driver IC(DRV8834).Pin-A1 PinA-2 PinB-1 PinB-2 Hex1 0...
View ArticleSensorless motor controller development options
Hi Chris...??I am doing a sensorless motor controller. I have an existing "sensored" motor controller in a completely "non-TI" platform. It seems to me I have three options.1) Develop my own...
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DRV8834 – About VREFO output timing
Hi Team, Our customer are evaluating DRV8834.Could you please let me ask the following question? [Question]After the Sleep mode was released (nSLEEP pin = Low -> High), when does the output voltage...
View ArticleDRV8301 not switching (charge pump?)
Hi,I have a problem with the DRV8301 not switching anymore.What happened:First I made some testing with a low passive load (high RL values: about 3 Ohm and 900 uH) and I got the ouput switching...
View ArticleDRV8308 EVM - speed control
I'm using DRV8308EVM with GUIComposer (DRV8308EMV_GUI v1.1) in combination with a 3-phase BLDC motor (1 magnetic pole pair)The "PWM Modes" works all fine. In the "Clock Frequency Mode" I'm able to...
View ArticleHolding Torque in PMSM Motor Control - Sensored
Dear Friends,I'm working on PMSM Motor Control Project (with Encoder + FOC). For that, I've imported the HVPM Sensored code from control-suit.Now everything working fantastic, except for some issues.As...
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hall sensor arrangement around BLDC motor
Hi friends,I am going to make driver for CD_ROM BLDC motor (upgraded-- i had changed the winding and magnets).It have 12 winding on rotor (each 3 in series and then in STAR(Y))and also the stator is...
View ArticleBack EMF or Hall sensor.. which would be the best
Hi All,I have 3 hall sensors and I aware how to use them to drive a 3 phase BLDC motor using microcontroller. But I wantt to know is there another method named as "back Emf method" in which there is no...
View ArticleRegenerative Braking with DRV8312-69M-KIT & Scaling Down Curves
Hi, I am a newbie to this forum and would like to ask 2 questions.1) I would like to do regenerative braking on the DRV8312-69M-KIT (haven't purchased yet). Is this possible in terms of hardware? I...
View ArticleTMDSCNCD28069MISO Schematic - Where do I find it ?
I want to get the SCI peripheral going on the 69M-KIT board, but the pins for the SCI don't seem to come off the TMDSCNCD28069MISO card anywhere.If that's right, I guess I'm going to have to pick these...
View ArticleDRV8839 pad layout design help
Hey all,I am working with a customer (non-NDA) that has been having trouble with our DRV8839.The problem is in their production side - they're having trouble working with the pad layout and the solder...
View ArticleCCS6 / GUI Composer running incredibly SLOW for Stepper Motor Booster Board App
Hi, I have just received the Stepper Motor Boosterpack and have found the GUI Tool extremely slow and un-usableI am using CCS 6.0, the GUI tool is the one linked direct from the Boosterpack site...
View ArticleDRV8307 Direction problem
Hello there,I am currently developing an application which uses DRV8307 to drive Nanotec BLDC Motor DB42M03 (link http://en.nanotec.com/products/633-db42/ ).Everything seems to be working but one...
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