Discuss power management solutions. Ask questions and find answers on voltage configurations, short circuit protection, and programming.
Posted on July 23, 2015 at 13:32I am a newbie to Stepper Motors. I am working on L9942. The different modes that it can chop the current are Full mode, 1/2, 1/4 and 1/8. When 1/4, 1/8 modes are used with lower STEP Frequency or when Full and 1/2 mo...
Posted on July 21, 2015 at 20:55I need some help on a drive controller that I designed that uses two L6482's. The problemis sometimes while running, one motor will shut off. Reading the status register shows an over current condition. The testing cu...
Posted on August 12, 2015 at 10:02HiI have made a post about my problem here: https://my.st.com/public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/STM32F103%20PWM%20Interrupt%20not%20workingIf anyone is able to assist me it would be much appreciated....
Posted on May 11, 2015 at 10:01Apllication note AN2625: Theproblem which i am facing is that there are very large voltage spike at Vds which are not shown in the application note .And what aret he design creteria for selecting R2 and R4. Regards, Pa...
Posted on August 01, 2015 at 02:59Hello all, I have a L6470 based board powering a 1.2A/ 12V Soyo SY57ST56-1206A motor, and at low speeds it has the expected torque, but it falls off drastically above 300 pps, and by 600 pps it doesn't move at all u...
Posted on July 24, 2015 at 20:54Hi,I'm interested in STMicroelectronics's STCC5011 USB charging controller. We are carrying out product testing for the Lighting Global program (http://www.lightingglobal.org/). As part of this testing, we will be tes...
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 ...
