Power management

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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_1-1734156149269.png willzhou_0-1734155900141.png
willzhou by ST Employee
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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
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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
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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
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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...

L6480 cannot switch on my 170 nC transistors

Posted on September 06, 2014 at 14:57Greetings, I am doing a test series of stepper drivers with L6480 for furnace rotation control. There seems to be a problem with the device. The circuit is a copy of Eval 6480. SPI is up and functional, every re...

alexing by Associate
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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...

srg0016 by Associate II
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15W and 30W LED DRIVER

Posted on September 01, 2014 at 03:30HiI need help in identifying the VIPER or any other device for a 15W and 30W LED Driver for Street Light.  The input is 150V to 310V AC @ 50Hz.ThanksKiran M R

kiranmr by Associate
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VIPER Battery Charger

Posted on September 01, 2014 at 03:27HiI need help on designing a 12V, 1A and 12V, 2A SLA Battery Charger.  The input is 150V to 270V AC @ 50Hz.This is urgently required and would appreciate any help in this regard.ThanksKiran M R

kiranmr by Associate
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