DRV10975 tuning: current probe recommendation
The Tuning Guide seems to rely heavily on current measurements. Am I correct in assuming that I really should have a current probe?I bought one for this purpose, but evidently the bandwidth is not...
View ArticleRE: DRV8844 "backward powered" problem
Hi Riccardo, I have now been able to duplicate your findings. I hope to have more information tomorrow.
View ArticleDRV8844 "backward powered" problem
Hello. I need help about a strange problem I'm facing with the DRV8844.In some applications is possible that the controlled DC motor gets mechanically turned, while power is not supplied to the control...
View ArticleRE: DRV10983-75 application issue
Hi Krushal, Yes, I am applying 24V to the EVM, however I understand the GUI should at least display the settings menus even if I were to attempt to run without the EVM connected (so long as the...
View ArticleDRV10983-75 application issue
I have a DRV10983EVM Developer Kit and am having trouble getting the computer software (DRV10983-75) to run. It will open, but none of the menu buttons work in the GUI, and when I click 'run' I...
View ArticleRE: DRV8871 startup
Hello Rick-san,Thank you for your comment.And I'm sorry for I could not inform you correctry what the customer want to do. Please see attached ppt and give us any advise.Thanks and best...
View ArticleDRV8871 startup
Hello,Our customer now trying to use DRV8871, but their startup current is too big(about 5A/1us) and the device could not operate correctly.It seems that it due to current regulation (not OCP), so they...
View ArticleRE: DRV 8307 GATE Current capacity
I have used 0.7 Nm torque motor and I required very high torque. Is it possible with any best Filter and Compensator configuration? I have seen DRV8308 datasheet and In application note I find that...
View ArticleDRV 8307 GATE Current capacity
I found that in the data sheet of DRV8307, It is written that 'DRV8307 is a three half- bridge pre-driver that drives six N-type MOSFETs 30 mA with a single power supply.' While in this linked...
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RE: PWM Polarity Inverting Circuit for TEC module using DRV8432 in parallel...
Hi Rick,Thanks for the reply.I am PWM'ing at 40khz a higher frequency (>10kHz), this is the reason 200nF bootstrap caps are added. For this now I am trying to add 5ohm series resistor to GVDD with...
View ArticleRE: DRV8301-69M-Kit, issues with high duty cycles (PWM)
Hi Nick,does this measurement give you an idea what causes this fault or do you need further information?Regards,Oliver
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DRV8301-69M-Kit, issues with high duty cycles (PWM)
Dear e2e-community,I am using the DRV8301-69M-Kit with Motorware version V1.01.00.16. I developed an application based on project lab04. In this application I want to assign three pwm duty cycles...
View ArticleRE: using DRV595 as single-ended output
Hi Peck Eng Hong, Our experts have been notified and should reply soon.
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RE: PWM Polarity Inverting Circuit for TEC module using DRV8432 in parallel...
Hi Sai.,There may have been a misunderstanding regarding the bootstrap cap value. From the datasheet:For applications with lower than 10-kHz switching frequency and not to trigger BST_UVP protection, a...
View ArticleRE: Braking while motor is generator
Hi Alexandre,Our experts have been notified and should reply soon.
View ArticleRE: using DRV595 as single-ended output
Hi, Peck,In order to use the DRV595 in Single ended mode, you need to use a voltage divider to bias IN- to 3.0V, and apply the single-ended signal to IN+.The output of the DRV595 should be connected as...
View Articleusing DRV595 as single-ended output
I am trying to use DRV595 to drive a TEC.I have some questions:1) For the I/P I am using single-ended connection & for the O/P can I use single-ended connection to drive a TEC by connecting one end...
View ArticleRE: Braking while motor is generator
Hi Alexandre, If all three low-side MOSFETs are simultaneously turned on this will Brake the motor. This will cause the motor to quickly come to a stop because each of the phases are shorted together....
View ArticleBraking while motor is generator
Hello,I'm using DRV8301 controller with TMS320F28052F MCU.I'd like to brake when motor is no more controlled, that is, motor is generator.Driver is enable, and PWM signals are at low level.Is it...
View ArticleRE: Decoder and Cross Conduction Protection Latches
I've moved your thread to the Motor Drivers forum. Todd
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