Power management

cancel
Showing results for 
Search instead for 
Did you mean: 

Forum Posts

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 2. Python drive code, check attach file "Python_FT260_S...

willzhou_0-1717985741931.png
willzhou by ST Employee
  • 3137 Views
  • 14 replies
  • 6 kudos

Bus Voltage Sensing Formula

Posted on September 28, 2014 at 16:21Gigi:          I'm in the Bus Voltage Sensing parameter settings of Workbench when the input voltage is 24V, I am a divider resistor R1 = 51K R2=1K, how to calculate excuse me my Bus voltage sensing network parti...

ICS negative gain - how to?

Posted on September 27, 2014 at 14:10I am currently trying to deploy the STM32 foc library (v3.4 currently, v4.0 available not not tried yet) on a custom designed board. The motor does not startup, and I have tracked down the problem to a polarity m...

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...

fmaletic by Associate
  • 288 Views
  • 1 replies
  • 0 kudos

Efficient DC motor control

Posted on September 28, 2014 at 19:15Hi everyone,I have to develop a PMDC motor control. The main requirement is the maximum possible efficiency. Since I'm interested in a one way rotational direction, I thought that a low-side control (chopper) cou...

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...

hof by Associate II
  • 350 Views
  • 2 replies
  • 0 kudos

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...

L6470 acceleration problem using sensor seek commands

Posted on August 21, 2014 at 22:41after performing a few sensor seeks using the ReleaseSW() and GoUntil() commands i have noticed that they do not use the same acceleration/deceleration. GoUntil() uses the programmed values, ReleaseSW() uses somethi...

spelger by Associate II
  • 308 Views
  • 1 replies
  • 0 kudos

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...

thh by Associate
  • 296 Views
  • 1 replies
  • 0 kudos

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...