DRV8873: 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 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...
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Strange fault:Why the bus voltage suddenly rises abnormally.
Hello allNow,the IGBT on my board has been burned by a strange fault.Specific working conditions:When the motor is running at 1200 rpm, the bus relay is suddenly disconnected.Then,the bus voltage(500V)...
View ArticleHow to change the gMotorVars.MaxVel_krpm while servo motor is running motion...
Hi every one!Good Day.I am using MotorWare18 proj_lab13b , (for servo motor).I need to change the gMotorVars.MaxVel_krpm while servo motor is running motion profile. how to do that ?what I have done...
View Articleshunt-resistor in each phase in( Directly measurement on the phase line ).
hi every one!I am using motorware18 prog_lab3a (for ACIM).as you may know in most of IGBT packs we do not access to leg of each low-side IGBTs .(like 7MBR50SB120)I want to use Directly measurement on...
View ArticleDRV10983: RPM Measurement Accuracy with Register 0x01
Part Number:DRV10983Hello E2E,We're looking into using I2C only for setting the motor speed. This idea is to set the Motor speed via register 0x30 and then monitor via Register 0x01. I have something...
View ArticleDRV8823: How to connect 3 wires motor in DRV8823?
Part Number:DRV8823Hi Sir enclosed file is customer currently connect motor spec.1. How to connect 3 wires motor in DRV8823? 2. If we just use one motor, how to disable another one? and may we let...
View ArticleDRV8332-HT: same specs chip but one PWM signal controlled like the TI...
Part Number:DRV8332-HTHi Team,I'd like to use the DRV8332-HT for its guaranteed 1000hours over 165°C, the drawback I face now is that I should control it with 6PWMs or 3PWMs which is complicated; I...
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DRV8662: questions about the input and output characteristics
Part Number:DRV8662Hi team,If the customer's design needs PWM input and +- 30V output to drive buzzer to achieve 3m/92dB, can the DRV8662 reach that specification?(How does DRV8662 provide negative 30...
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DRV8803: parallel output configuration
Part Number:DRV8803Hi,My customer asked if the DRV8803 can be configured with paralleled output as modified diagram below for high output current up to 2A.And he want to know about the absolute maximum...
View Articlehow to know QEP(encoder absolute count )
Hi every one 1I am using proj_lab13b.c ,I want to have absolute motor count either in MRev or Encoder pulse .I found ST_Obj->Pos->move->PosRollover and ST_Obj->Pos->move->PosRef_mrev...
View Articlebackground loop & state machine with cpu timer 0/1/2
In FOC example I know that we run mainISR in RAM which is interrupted with ADC but,My questions :what is background loop?Why are 3 cpu timers (0/1/2) runed in this example? Do they count to special...
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CCS/DRV8301: No pwm output when the PVDD1=Vbus higher than 14V
Part Number:DRV8301Tool/software: Code Composer StudioHi all,In my case, the PVDD1 and Vbus of MOSFET are connected. PVDD2 is float.No SPI connected (using the default value).When I put the Vbus below...
View ArticleDRV8301: DRV8301 limits - need more gate drive average current
Part Number:DRV8301Dear Sirs/Madams-I have worked with the DRV8301 extensively via the DRV8301 individually and the DRV830x-HC-C2-KIT_v105 kit and the DRV8312-C2-KIT_v128 kit and the...
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DRV10987: Failing at first step of setting up DRV10987 - no buck and 3.3V out!
Part Number:DRV10987Hi,I am having trouble with the standalone chips. Before integrating into a circuit, I want to check I can communicate with them on the I2C bus/generally make them work from the...
View ArticleDRV8308: Speed control
Part Number:DRV8308Hi,In our project , we are planning to use DRV8308 for speed control of BLDC motor.In datasheet , i don't understand below points.1) RPM Vs Duty cycle formula,For , CLKIN how much...
View ArticleDRV8711: initialization worked fine but signals on STEP Pin do not get the...
Part Number:DRV8711Hello everyone,I very interested in the DRV8711 and especially its use as stepper motor driver.I developed my own board for a cnc maschine. I could initialize the DRV8711 via SPI...
View ArticleDRV8823: DRV8823 software example
Part Number:DRV8823Dear TI: My customer used DRV8823, can you help to provide the software example of DRV8823? If there is no DRV8823 code, other similar stepper motor driver code is also ok, the...
View ArticleDriver Recommendation for Electrotactile Haptic Feedback?
Hi,I am a developer who's trying to develop an electrotactile haptic feedback system (haptic feedback system using different waveforms of electrical signal).In regards, I am looking for any...
View ArticleDRV8872: OCP function verify
Part Number:DRV8872Hi All:My customer is Verifying the OCP trip function of DRV8872. (this is using in the Automotive small motor drive)Can we use a DC electronic load to test it? ( [DC load + to OUT +...
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