Wireless Charging solution Wiki
This Topic is used for Wireless Charging solution 1.Mcu C drive code: GitHub - STMicroelectronics/STWirelessCharging-C-Drivers: Standard C platform-independent drivers for wireless charging ICs
Power management
Discuss power management solutions. Ask questions and find answers on voltage configurations, short circuit protection, and programming.
Forum Posts
Implement Emergency Stop on L6470
Posted on September 01, 2015 at 22:16HI, I am using an L6470 and have a situation where I must stop motion immediately if an obstruction (think someone's hand) crosses an IR beam. Motion must stop immediately and not via any commands since there can...
Stall detection of stepper motor during vibrating conditions using L9942
Posted on September 01, 2015 at 15:21Hello Experts,I am using a bipolar stepper motor and L9942 driver IC.I am unable to set the stall threshold time for my application. The stall position to be identified is the end position of the linear actuator....
Relation between STEP Input Frequency and Current Chopping in various modes of Stepper Motor Operation
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...
L6482H OVER CURRENT
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...
Need assistance with SPWM Motor Control for ACIM
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....
High Voltage AC limiting circuit
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...
L6470 /Soyo SY57ST56-1206A lacks torque at high speed
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...
USB port testing - STCC5011 USB charging controller
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...
L6470 Got(ABS_POS) doesn't start immediately
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...
Why there is no current chopping at the output coils during microstepping at lower STEP frequency input?
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...
