RE: drv8308: Motor stops working, Register 2A shows value of 0x4F (OCP, CPOC,...
Hi Marco, It is difficult to determine the reason without examining what occurred prior to the fault. The device reported several faults. It is recommended to set the scope to capture the phase...
View Articledrv8308: Motor stops working, Register 2A shows value of 0x4F (OCP, CPOC,...
Part Number: drv8308Dear Sirs and Madams,I'm using the drv8308 for a BLDC-motor in clock-pwm-mode. Sometimes, the drv8308 shows a value of 0x4f in it's register 2A. Preceeding this case, the motor runs...
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RE: DRV10983-Q1: Parameters work with DRV10983EVM but not the DRV10983-Q1
Hi,I'm still struggling to tune the DRV10983-Q1 to the motor. I can turn the motor in open loop mode, but when I transition to Closed loop mode it seems to fail to get going, pulls ever increasing...
View ArticleRE: drv8308: Motor stops working, Register 2A shows value of 0x4F (OCP, CPOC,...
Hello Rick,thanks for your reply.Unfortunately, I just recognized a bug in the code for evaluation of the register content. I suppose, that the right value that suddently appears is 7F (Mask corrected...
View ArticleRE: DRV10983-Q1: What is the difference?
OC threshold is not something customer can program. Yes, we have DRV10987 evaluation mode on the web. It look same but layout & one component from BOM should be different.Thanks,Seil
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RE: DRV10983Q1EVM: Analog and PWM speed control not working
Hey Alexander,If I2C runs the motor just fine, then that means there is some problem in selecting analog vs. PWM for the speed control or taking in voltage on the speed pin. There are two places to...
View ArticleRE: DRV10987: bldc motor tuning
Rocky, my thought is that pumping higher current into motor driver i creating ground bounce and it results in UVLO for 1p8V. Thanks Seil
View ArticleField Oriented Control of PMSM: PI Lose tracking of Id_Ref and Iq_Ref at...
Hello TI Community, I'm Currently doing a Field oriented control of a PMSM on Simulink. The PI current Regulator is well performing at speed up to 6000rpms, (the actual Id_motor and Iq_motor currents...
View ArticleRE: DRV8323: Various PWM modes
Hi David,Thank you for your question! Let me try to give you some help.6x PWM: This is the traditional control method for BLDC motors, this control mode allows each of the six inputs to control each of...
View ArticleDRV8323: Various PWM modes
Part Number: DRV8323In what situations or control methods would you choose either the 6-PWM, 3-PWM, 1 PWM, or Independent PWM? I am interested in a 3 phase BLDC application and planning on using the 1x...
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RE: DRV10983-Q1: Parameters work with DRV10983EVM but not the DRV10983-Q1
Hey Paul,I notice you linked pictures of the GUI, would it be possible to use the USB2ANY to communicate to the DRV10983-Q1 and use the GUI to manually change the EEPROM settings to match what you have...
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DRV10983-Q1: Parameters work with DRV10983EVM but not the DRV10983-Q1
Part Number: DRV10983-Q1I have a DRV10983EVM which I have successfully used to drive my motor. I have produced a dedicated board using the DRV10983-Q1 and I am struggling to tune the motor with the...
View ArticleRE: DRV8805: Roadmap for unipolar & microstep stepping motor
Hi Satoshi-san, There is no match, but there is a reference design showing how to convert a DRV8711 into a unipolar solution. Please see www.ti.com/.../tida-00872 for details.
View ArticleRE: DRV8880: Indexer Timing Requirements information..
Hi, James: Have any update for t_ENABLE and t_DISABLE? Thanks for your help!Jothur
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DRV8880: Indexer Timing Requirements information..
Part Number: DRV8880Dose DRV8880 Indexer Timing Requirements have detail information like DRV8818?Include ( tWAKE, tSLEEP, tENABLE, tDISABLE, tRESETR, tRESET)
View ArticleRE: Control 350RPM Stepper Motor
F28069M can be implemented micro-stepping for a stepper motor, you can refer to the example project in ControlSUITE as below if you installed it in a default floder. The example is based on F28035, it...
View ArticleDRV8842: V3P3OUT tied to INx
Part Number: DRV8842Hi team,My customer is asking us what could happen when V3P3OUT is tied to IN1 or IN2. Both pins are connected to and driven by MCU.My assumptions are;- If MCU keep H on both pins,...
View ArticleDRV8870: bias current of the VREF pin
Part Number: DRV8870Hello,Our customer use the DRV8870.The customer configure the voltage of VREF using resistive divider,so they want to know the input current of the VREF pin.How about the input bias...
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RE: DRV10983Q1EVM: Analog and PWM speed control not working
Hey Cole,thanks for your help. But I already applied those changes before consulting you. The jumper J2 is so connected that the speed input from the analog pot is used. I can also measure a voltage...
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