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RE: DRV8830 motor control
[quote user="Phil Beard"]Hi Park, Without a ground connection between the CC260STK board and the DRV8830 board there isn't a complete circuit for the I2C communication. Unplug the USB power from the...
View ArticleRE: DRV8825 current limiting issue
Rick,I setup my board to match the same components and settings as the 3rd party board, but had the same result. The decay mode pin is left open, so it is set to mixed decay, I still get a 2A DC...
View ArticleRE: DRV8832
Duncan-san, Thank you for your reply. I am sorry there is a place that knows wrong. I would like to discuss OCP. I wont to clear DRV8832 from OCP with IN1 and IN2. How long time should I set IN1 and...
View ArticleDRV8832
Would you tell me about these questions?1) How long time does it take to become "FAULTn = Low" after OCP is worked?We suppose a process below;1. Output current of over 1.3A continue about 275ms. | 2....
View ArticleRE: DRV8825 current limiting issue
Hi Steve, Can you try setting fast decay and report the results? Using mixed decay can produce the results you have described. That is because one winding is always in slow decay. Depending on the...
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DRV8825 current limiting issue
I am using the DRV8825 with a stepper motor, and have experienced an issue when the motor is standing still. Below is the circuit schematicThe schematic does not show a 1.5kohm resistor between the...
View ArticleRE: Supply Voltage and Current for DRV8308
Hi Charlie, Your question is being passed to our DRV8308 expert. He should respond soon.
View ArticleSupply Voltage and Current for DRV8308
Hello,I am using a DRV8308EVM and am attempting to supply 24V at the VM pin with a 60V, 5A MAX power supply. However, the board draws 3A by the time I've supplied only a few volts. I suspect a short...
View ArticleRE: Using DRV8308EVM to control Nanotec BLDC Motor DF45
Hi Mohammad, Our experts have been contacted and should reply soon. Can you provide the connection information using the connector number and pin number? Also, can you provide the jumper settings used...
View ArticleRE: Using DRV8308EVM to control Nanotec BLDC Motor DF45
Jumper settings are exactly the same as default settings. (Hall sensor is again single-ended and no EEPROM).Also, this is the real motor datasheet. (Just connections are different from the previous...
View ArticleUsing DRV8308EVM to control Nanotec BLDC Motor DF45
Hi,I can drive the motor included in the package with DRV8308EVM. However, as soon as I connect the DF45 Nanotec BLDC Motor to the evaluation board, I see some problems. According to the motor...
View ArticleRE: Using DRV8308EVM to control Nanotec BLDC Motor DF45
Hi Mohammad, Based on the motor datasheet you supplied the hall states should line up with the DRV8308 hall states shown in table 2 on page 17 of the DRV8308 datasheet. With the default wiring scheme...
View ArticleRE: Supply Voltage and Current for DRV8308
Hi Charlie, I apologize this EVM is giving you trouble. To make the trouble shooting a little more clear, can you verify if the problem is present in the following conditions: 1.) Remove all motor and...
View ArticleRE: Drive for permanent magnet linear synchronous motor
Hi WilsonThank you kindly for your reply.I'll have a look at DRV8332. See if that will work.Kind RegardsTrenton
View ArticleRE: DRV8830 motor control
Hi Park, All of the Jumpers should be removed from the board to get the I2C base address called in your C file (0xC8). Was the DRV8830 EVM powered on when you tried to read the base address? With both...
View ArticleRE: Supply Voltage and Current for DRV8308
Hi Phil, Thank you for your response and for consulting on this thread. We appreciate it! Our fellow researcher here in the lab went through with all of your steps and found no improvements or changes...
View ArticleRE: Supply Voltage and Current for DRV8308
Hi Charlie, LED D4 is the VM LED, it's directly connected to the VM supply line with a series 4.3K Resistor. This should light up if VM is supplied to the board. LED D5 is tied to the V3P3 Net which is...
View ArticleRE: Supply Voltage and Current for DRV8308
Hi Phil, Yes, we turn on the power supply with the voltage knob turned all of the way down. Then we slowly ramp up. However, our power supply is smart and never allows more than ~1A of current to flow...
View ArticleRE: Drive for permanent magnet linear synchronous motor
Other options could be pre-driver + Mosfets for higher current. Recommend DRV8305 boostpack. www.ti.com/.../boostxl-drv8305evm Best regards,
View ArticleRE: DRV8870 EVM Schematics
Hi Ryuji There all the files including the source files of SCH/PCB online.www.ti.com/.../DRV8870EVM Please find in the bottom of the page with "hardware files" Best regards,
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