Discuss power management solutions. Ask questions and find answers on voltage configurations, short circuit protection, and programming.
Posted on July 30, 2015 at 18:53I have had partial success in using the L6470 eval board. However, I found that when I issue a GoTo (ABS_POS) command, it doesn't execute right away. Interestingly enough, it starts executing after I send a ''disabl...
Posted on July 29, 2015 at 08:18Dear Experts,I am currently working with L9942 Driver IC. During micro-stepping at less than 700Hz of STEP frequency input to the driver, there is no current chopping at the output coils. At frequencies greater than 7...
Posted on July 24, 2015 at 02:56Hi, i get start to test a L6470H discovery board and got some problems:1.i try to connect board and pc with usb cable but it shows unknow device in windows device manager in win7-64bit but works fine in win xp 32bit.(...
Posted on July 24, 2015 at 04:17hii got a L6470H disc board and try to run the source code from (dSPIN_Firmware_Library_STM32) and (dSPIN Discovery Kit) project both of them get SPI communication fail: any read of spi get 0xFF, the board is new and ...
Posted on July 18, 2015 at 05:04What is the filter cap required for driving a stepper motor at 5 amps RMS? The schematic from ST shows 220uF 100V but no ESR data. I placed a United Chemi-Con 390uF 100V with an ESR of 28m ohms and a ripple current of...
Posted on June 22, 2015 at 16:05I've been encountering a strange problem. I can use the L6474 to move a stepper motor pretty fast in the forward direction. When I flip the direction bit though, I find that I can't make it move anywhere near as fas...
Posted on June 30, 2015 at 15:58Running a bidirectional stepper at 30V with L6482 and getting actual stalls in 16-microstep mode -- under load the motor literally stops and hums, but nothing is reported back to software. It's like the driver has not...
Posted on June 10, 2015 at 10:16Can i interface a quadrature encoder to stm32 without using the channel 1,for example using the channel 2 and channel 3 .
Posted on June 14, 2015 at 20:55Hello I am new to dSpin, but straight to the question.I have a L6470h setup on a protoboard using schematics found in the usermanual.But I see that the chip gets very hot even though it is in HiZ state. I measured the...
Posted on June 30, 2015 at 16:04The manual describes the function of TBOOST well, but none of the examples of configurations that I have seen show the parameter set to anything besides 0x00, or really when it would be useful to implement it. Could s...
