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RE: DRV8303 DVDD Fault
Nick,We finally found some time to look at the same set of signals on the board with the DRV8302 loaded. The traces look a little different but I'll explain. We omitted the DRV8302's nFAULT signal as...
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DRV8303 DVDD Fault
We are seeing a fault on our DRV8303. We believe it's the DVDD undervoltage; the status register reads 0x0 if we attempt to read it right after the FAULT pin goes low.What we'd like to know are...
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DRV590 vs DRV595
Dear Sir I think IN+ should be directed to internal OPA+ Could you kindly help to check have something wrong in DRV595??
View ArticleRE: drv8312 Rsense Current Shunt Resistor.
Hi Viken, Yes. The shunts on GND_x will not affect the OC shut down. There is separate monitor circuit internally. Best regards,
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drv8312 Rsense Current Shunt Resistor.
HiThe Rsense Current Shunt Resistor of drv8312 is optional or required and between GND_X to GND?if the Rsense A、B and C Current Shunt Resistor is void, the IC overcurrent shut-down function can also...
View ArticleRE: DRV8830 I2C motor driver
Hi Kai, Unfortunately, we do not have a device that has meets your stated requirements. Can you provide more information on the application? Why is an I2C interface requested? If you don't need the I2C...
View ArticleDRV8830 I2C motor driver
Dear Sir I would like to find I2C interface and support 12Vin / Iout =500mA for 4 channel stepper motor (don;t need micro step)I saw DRV8806 have 4 channel output ,but seems like serial interface is...
View ArticleRE: 8711 decay mode settings
Hi Ajay, In case 2, are the motor parameters, the system voltage, min and max speed, and microstep settings known? All of these can effect the decay mode setting. The voltage and step modes can also...
View Article8711 decay mode settings
Dear Sir,I am facing setting problem of 8711. My motor is running but creates lot of noise & it gets heatingFor 8711 setting we need some guideline to set "decay mode Vs micro-step Vs motor...
View Article2 Phase Brushless DC Motor Control
Hi,I have a 2 phase brushless dc motor that uses about 28 VDC and 1-1.3 Amps. Attached to the output shaft is an optical encoder that is very accurate (down to arcseconds... it's the BEI AIME-II...
View ArticleRE: 2 Phase Brushless DC Motor Control
Hi Dustan, This thread is being merged with the first post.
View ArticleRE: 2 Phase Brushless DC motor control
Hi Dustan, Can you provide a motor specification? This will help determine potential devices that may work.
View Article2 Phase Brushless DC motor control
I currently have a two phase brushless dc motor. It runs at around 28 volts and 1 amp. I also have a high fidelity optical encoder that I can use to determine angle, angular rate, and direction. My...
View ArticleRE: DRV8872goes into current regulation with ISEN grounded.
Hi Rick, How do i upload pics?
View ArticleRE: DRV8872goes into current regulation with ISEN grounded.
Hi Steve,After clicking Reply, click the "Use rich formatting" to the far right of Reply. This will allow options to insert media.
View ArticleRE: DRV8846EVM issue HTTP ERROR: 404
Hi Davide, We will investigate and reply soon. Did you also see a Details button? If so, please capture the details and attach them.
View ArticleRE: Motor Driver and Controller for a reciprocating linear motor
Rick, I can't see the motor only the assembled cryocooler. The cryocooler has a part number STI (stands for Superconducting Technologies Inc) 030-0247E. The cooler is referred to as Hybrid 98...
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RE: DRV8872goes into current regulation with ISEN grounded.
(Please visit the site to view this file)Thanks,2 pics are of the 2 phases. 1 is 1 output and Vm. The other 2 are my breadboard. the last is the schematic. (motor cap not installed. I hope you can make...
View ArticleDRV8872goes into current regulation with ISEN grounded.
Running a cyclic test. IN1 & IN2 reverse phase every 5 sec. connected to small PM motor which draws less than 100ma. I see the outputs switch on for ~ 2us, then off (~2v level) for 25us. This...
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