Noise in voltage when Run_identity flag is enabled.
Dear team,I made a motor driver for 24V and running with f28069 launchpad. I am using lab5a.I am using two power source 12V for powering driver and instaspin and 24V for Inverter Circuit. Also i made...
View ArticleDRV8821: DRV8821
Part Number:DRV8821using DRV8821 , It works fine with a step motor with 2.5 ohm resistance. However with other set motor with a resistance of 100 ohm , The motor is making noises and is not moving....
View ArticleDRV8303: fr
Part Number:DRV8303Hi, I tried to change my DRV8303's pwm_mode to 3-pwm input via SPIIt successed on read/write 0x0-0x3 but only PWM_MODE, once I set to 3-pwm input that next cycle gives a fault...
View ArticleDRV8303: Control register can not change PWM_MODE to 3-pwm input
Part Number:DRV8303Hi, I tried to change DRV8303'PWM_MODE' to 3-pwm input,I do access 0x00-0x03 registers via SPI well but once I change register 0x02 D3 as 3-pwm inputIt responsed a fault bit(F0), any...
View ArticleCCS/DRV8871: What's the difference between DRV8871 and DRV8872?
Part Number:DRV8871Tool/software: Code Composer StudioWhat's the difference between DRV8871 and DRV8872?And this reference of DRV8872:DRV8872DDARQ1DRV8872DDAR
View ArticleCCS/TMS320F28035: Settings for running the code from Flash
Part Number:TMS320F28035Tool/software: Code Composer StudioHi,I have flashed the F28035 exp kit with the PMSM code. The LED flashes indicating the interrupts are working.However for the code to run I...
View ArticleDRV8303: DRV8303 for 300W
Part Number:DRV8303Dear Sir I saw DRV8303 have a reference for 100W/24Vin application ,May I know 300W use the same solution??Thanks
View ArticleDRV8303: Problem about SPI with C2000 mcu
Part Number:DRV8303Hello,I have a question about SPI between C2000 mcu, TMS320F27027F and DRV8303.If I try to read status register in Drv8303 by SPI, the SDO pin of Drv8303 stayes high level and...
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DRV8412: The strange behavior at Fault* pin at the power-up sequency
Part Number:DRV8412Hi BU teamDRV8412 was designed for the stepper motor application. Monitored the Fault* pin timing during the powered-up and found an unsmooth rising edge. The issues were showed in...
View ArticleDRV8837: Can I parallel two or more DRV8837 IC's to boost the output current
Part Number:DRV8837I have an application were I need to switch very quickly from output to hi-impedance outputs. The DRV8837 seems to offer this.Unfortunately the output current is not sufficient. I...
View ArticleDRV8332: What is the level of isolation between output stage and...
Part Number:DRV8332My customer is going to use DRV8332 for BLDC motor. What is the level of isolation between output stage and communication inputs (12V Gates GND and Power GN.
View ArticleDRV8711: Using Multiple DRV8711 -- Connect V5 outputs for additional current
Part Number:DRV8711I am using 4x DRV8711 for a 4-axis CNC application.I would like to utilize the 5V LDO internal to the DRV8711 (V5 pin) to supply the power for the rest of the system, including MCU....
View ArticleDRV8305-Q1EVM: Trouble setting the Flag_enableSys in debugger
Part Number:DRV8305-Q1EVMI am working through the FOC labs, and for some reason most all the time I cannot set the gMotorVars.Flag_enableSys flag in the debugger. I can set the other flags just fine...
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How can I terminate floating voltage of PVDD port?
Hi,Even above condition, (DRV8332 in reset and PVDD off)the power indicator LED remain on in low brightness.I could observe the floating voltage (almost 2~3V) at point of arrow.How can I terminate...
View ArticleDRV8303: Shunt Resistor with unipolar current sensing
Part Number:DRV8303I have drv8303 motor control chip with 3 sense resistors, on in each phase leg (between lower mosfet source pin and DC-). drv8303 only allows 2 current sense so the third shunt...
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DRV8823: How to convert relative current to digital form
Part Number:DRV8823Hi Team,I'm working on DRV8823, While I was reading data sheet I was confused how to convert digital bits to relative current.Please provide the formula how to convert xI2,xI1,xI0 to...
View ArticleDRV8301: DRV 8301 SPI write not working
Part Number:DRV8301I have Arduino Uno and I have developed HTTSOP to DIP(with 2.57mm pitch header) PCB board. I have soldered tiny chip of DRV8301 on this PCB board. I have attached all the peripherals...
View ArticleBOOST-DRV8711: Reading BEMF voltage in EXSTALL mode
Part Number:BOOST-DRV8711Hi,I have few queries:1. Is the BEMF measured at 90, 180, 270 and 360 degrees of the coil current waveform in EXSTALL mode?2. Is the STALLn/BEMFn triggered at 90, 180, 270 and...
View ArticleDRV591: DRV591 application
Part Number:DRV591Hello All,My customer Huawei uses DRV591 to drive TEC, the output current will reach 3A when the temperature is -40C. They want to know:1. In our datasheet, the max output current is...
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DRV8307EVM: DRV8307EVM Input voltage noise
Part Number:DRV8307EVMHi,I am driving a 3-phase bldc motor with drv8307evm board. When i change the pwm duty cycle, there exists a voltage noise on 24V DC input voltage. How can i terminate it? By the...
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