RE: DRV8301: DRV8301-HC-EVM Rev D_BUCKCONVERTER
Is drv8301 buck converter available without d2?
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RE: DRV8308: When the motor stops, it sticks for about 0.5 seconds
Hi Adam,I am unsure what you mean by SH, GH and GL.I did manage to get an oscilloscope capture of f_clkin compared to FGOUT. They have the same frequency, but they are not locked in phase. FGOUT is...
View ArticleRE: DRV8301: DRV8301-HC-EVM Rev D_BUCKCONVERTER
If d2 put into the circuit, what function does it do?
View ArticleDRV8301: DRV8301-HC-EVM Rev D_BUCKCONVERTER
Part Number: DRV8301I have a DRV8301-HC-EVM Rev D schematic.but R2,R3,D2 is NP.Is this not necessary?
View ArticleDRV8847: Suggestion for MD application
Part Number: DRV8847Hello team,is designing a system for industrial machinery. We have come up to the following devices as choices but I would like to have a suggestion from your side which suits...
View ArticlePiezo driver
Hi,Please suggest part for piezo driver, with below specificationTerminal Voltage : 40V at 300Hz Terminal electric capacity : 3uFVibration Force : >49m/s2
View ArticleDRV8873: DRV8873 with 200kHz PWM frequency
Part Number: DRV8873Hello TI!What is the Roadmap of TI's DC Motor Drivers?Is there a future product like the DRV8873 with a maximum PWM frequency of 200 kHz?Best reagrdsPhilipp Schneider
View ArticleRE: DRV8872-Q1: Motor current after Itrip has been reached
Li-san,Thanks for dedicated answer.I may ask workaround to improve current ripple via e-mail.Best regards,
View ArticleDRV8872-Q1: Motor current after Itrip has been reached
Part Number: DRV8872-Q1Hi Champs,My customer would like to calculate motor current when tOFF elapsed after Itrip reached as shown in attached.Could you provide how to calculate the current under...
View ArticleRE: I2C Interface Stepper motor driver
Hi Kami, There are no stepper motors with a I2C interface. Could you explain the benefit of a stepper motor with I2C interface?
View ArticleRE: DRV8880: Noise hearing on run and holding condition at DRV8880
Hi David, Is the motor isolated from any metal that can amplify the noise? Can you provide motor specifications (R/L/I/V)? Can you provide current waveforms when the noise is heard? Have you tried...
View ArticleDRV8880: Noise hearing on run and holding condition at DRV8880
Part Number: DRV8880I've heard a noisy sound with my motor which driven by DRV8880it's a high frequency noise from the motor, no matter running or holding mode.the DRV8880 setting parameters as below,...
View ArticlePCB layout, EMC/EMI reduction
hi thereIs there some application notes on how to design PCBs for switching motor output stages (placement FETs, decoupling capacitors, PCB layer, filters, etc.) to generate as little EMC as...
View ArticleRE: The relationship between speed and Iq_ref in FOC
The limit value is changed based on different load. I need to know this limit value to separate two different group of PI gain. Is there any ways to know this limit value. thanks.
View ArticleThe relationship between speed and Iq_ref in FOC
In the current loop debugging of FOC. The relationship between speed and Iq_ref is strange. The increase of speed is followed the increase of Iq_ref when Iq_ref is lower than a certain value. But the...
View ArticleRE: DRV8885: 2-phase excitation of full step
Hi Fujiwara-san,It is unlikely the DRV8886 will operate correctly at high ambient temperatures and high RMS current. There are few options available.The DRV8711 with external FETs is one.Two DRV8840 or...
View ArticleRE: I2C Interface Stepper motor driver
Hello Rick, Because the customer wants to share a board, the interface is I2C Interface. Dose the answer what you want? Best Regards, Kami Huang
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