DRV8302: Brushless Sensorless Motor speed oscillates, which causes it to lose...
Part Number: DRV8302Hello motor control gurus. I am not one of you.I made a BLDC control board to control an RC airplane motor- and it works well enough below 4k RPM, but goes unstable at higher RPM...
View ArticleDRV10983: Current limit function
Part Number: DRV10983HiDoes DRV10983 have current limit function those like DRV11873 has?The current limit of DRV11873 can limit the current to motor.It would be helpful because motor speed can be...
View ArticleRE: DRV8302: Brushless Sensorless Motor speed oscillates, which causes it to...
Hi, I think you should capture this image when motor is coasting to find the hall sensor errors or you can capture by sniping motor freely with hand (without commutation). To find the commutation...
View ArticleRE: DRV8711: Predriver Fault(XPDF) condtion
Hi Matsumoto-san,The predriver fault monitors proper operation of the x1LS/x2LS/x1HS/x2HS outputs of the DRV8711. If incorrect operation is detected the PDF fault is activated.Examples of detectable...
View ArticleRE: Trinamic TMC2130-LA-T replacement
Hi Vincenzo, You may want to look at something like DRV8886AT (if 40V max is ok) or DRV8880 (if you need 50V max). However we are not going to have as many "TM" features as Trinamic. Thanks, Matt
View ArticleTrinamic TMC2130-LA-T replacement
hi all,I'm looking for a replacement of the part in subject.I looked at the DRV8825 and DRV8841, but I hope you can provide a better advice.thanks a lot in advanceKRVincenzo
View ArticleRE: DRV10975EVM: Motor Speed digital input and read back
Hello Rob, Thanks for giving a good amount of information for context. Let me address your questions below: For your first question, the GUI actually doesn’t have an automatic conversion to RPM from...
View ArticleDRV10975EVM: Motor Speed digital input and read back
Part Number: DRV10975EVMHi,I'm having an issue with the reported speed using the DRV10975 EVM GUI. Here are my motor parameters:Nominal Voltage: 9vNominal Current: 1.06A; Stall Current: 3.06ANo Load...
View ArticleRE: DRV10983: Current limit function
Na Na,Yes, DRV10983 has software current limit that can be set through the I2C interface. This limit can be set below the over current protection so you should be able to spin up your motor similar to...
View ArticleRE: DRV11873: Cut-out at certain duty cycles - why?
Chris, I don't believe I encountered this behavior. Given that you are ~4x the fundamental frequency where the false lock occurs I would have expected varying the PWM by something like 0.05% would have...
View ArticleClik here to view.
CCS/DRV8711: DRV8711 with MSP430g2553
Part Number: DRV8711Tool/software: Code Composer StudioHi all,I am using DRV8711 for my stepper motor control project. First i tried with MSP430g2553 controller and DRV8711 evaluation kit, its working...
View ArticleRE: CCS/DRV8711: DRV8711 with MSP430g2553
Hi Yuvaraj, What steps have you taken to compare the evaluation kit to your board? Do you have similar settings in your DRV8711 compared to the evaluation kit? Have you examined the fault pin, the...
View ArticleRE: Looking for 24V BLDC motor driver
Hi Anil, What do you mean "drive 24V BLDC motor with the help 3 PWM signal and hall sensor feedback"? Do you mean the driver should control the BLDC without the help of the TM4C123? If so, please look...
View ArticleRE: Looking for 24V BLDC motor driver
Hi Rick, Thanks for your quick reply. Actually i want to run 24V BLDC motor with the help of PWM siganls generated from TM4C123 controller. Three Phase signal of BLDC motor should be directly connected...
View ArticleLooking for 24V BLDC motor driver
Hello all, I want to drive 24V BLDC motor with the help of TM4C123 tiva c controller.I am looking for a driver which can drive 24V BLDC motor with the help 3 PWM signal and hall sensor feedback.I...
View ArticleRE: DRV8833: Regenerative braking
Hi Rick, Thank you for your response. I'll keep testing. For now, I'm using the SN754410.
View ArticleDRV8833: Regenerative braking
Part Number: DRV8833Hi there,I'm building a motor driver circuit capable of regenerative braking. Is it possible to achieve this with the DRV8833 chip (i.e. current flow from AOUT1 to VM), or does the...
View Article150W 12V automotive sensorless BLDC motor component selection help
Hello everybody,I could use some help selecting some components for a new project we are working on. I am stuck with a NDA so can't share too much about but it is a 12V around 150W automotive...
View ArticleClik here to view.
RE: DRV8302: Brushless Sensorless Motor speed oscillates, which causes it to...
Thank you for responding Prashant- I am pretty new to motors. I will work harder on my filtering and linear interpolation. It seems plausible that small inconsistencies could cause big problems at...
View ArticleRE: 150W 12V automotive sensorless BLDC motor component selection help
Hi Jan, The BOOSTXL-DRV8305EVM + Launchpad is a good starting point. There is also the www.ti.com/.../DRV8305-Q1EVM which has the automotive version of the device on the EVM. In both cases, you can...
View Article