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
Torque limitation in PMSM FOC
Posted on September 24, 2014 at 10:26Hi,I'm controlling my PMSM at zero speed. While I'm trying to move its shaft I don't want my motor to generate its maximum torque to resist my movement but the limited one. Everything went fine with classic contr...
L6472 / L6474
Posted on August 27, 2013 at 10:05I am experiencing problem with the current regulation of the L6472. We made 2 series of boards, one was fitted with L6474s, the other one with L6472s. The board has 8 channels, supply voltage is 24V / 3.3V, timing p...
EVAL-L9942 interface problem
Posted on September 18, 2014 at 17:37Hello!I bought 3 Eval-L9942 boards. I connected supply voltage (5V). Enable (connect to 5V) and a step clock (5V. 100Hz). The VS supply is 12V.The motor i have connected does not move. All outputs are at 12V cons...
stepper motor ramp profile using timer 1 output compare
Posted on August 29, 2014 at 03:19timer 1 output compare to generate Step output for stepper motorI am using timer1 channel 1 as output compare, to generate a pulse of variable period.Desire output – In the beginning the output remain low for 4 ms(...
Implementing motion profile multiple L6470 chips
Posted on September 15, 2014 at 16:23I'm investigating using the L6470 for an multi-axis application. Please let me now if it is possible using SPI to position multiple motors according to a motion profile/position table at constant speed. i.e. impl...
Can't reliably sense stalling using L6470 chip
Posted on October 22, 2013 at 20:37I've been quite successful at controlling the L6470 stepper driver chip from my embedded ARM processor for all features other than the sensorless stall detection feature. I'm hoping that I'm missing something and t...
GoTo(ABS_POS) error during motor running
Posted on September 03, 2014 at 09:59Hello!In my application I send GoTo(ABS_POS) commands when stepper motor is running at constant speed, when BUSY flag is high, so I'm sure that the target speed is reached. And everything is going well most of ti...
a formula about duty cycle computation
Posted on August 03, 2014 at 06:34hello all : I,recently?found that the formula about duty cycle computation in the SW do not accord with that in the user manual . Sector ????TimePhA=T/8+?T+X-Z?/2 in the SW,however,Sector ????TimePhA=?T...
Input Voltage limit on VNH5050 Diag/ENA pin
Posted on August 14, 2014 at 03:20HiI'm designing a very compact quad VNH5050 12V Motor Driver board.I can optimize my design if I can pull-up the DIAG/ENA pins to 12V rather than the 5V Logic level.There is nothing else connected to these pins. Al...
Problem about L6482H (OCD failure)
Posted on August 22, 2014 at 19:45HiI have developed about motor control by using L6482H. I follow circuit form reference circuit of L6482H Eval board (same part). Now I stuck at OCD failure. I have construct a new board follow Eval board. In Eval b...
