Power management

Discuss power management solutions. Ask questions and find answers on voltage configurations, short circuit protection, and programming.

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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    

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willzhou by ST Employee
  • 13095 Views
  • 22 replies
  • 30 kudos

Where is the Back-EMF on the STEVAL-ESC001V1 schematics ?

Hello,I am trying to develop my own sensorless motor control using the STEVAL-ESC001V1 Board. The motor used is a 6 poles BLDC motor. I have successfully been able to run the motor in open loop and it’s running well.In order to have feedback and esti...

GMich.4 by Associate
  • 1925 Views
  • 2 replies
  • 0 kudos

Need LED backlit LCD 200mA driver with PWM dimming

STM32F746G-disco board currently uses a STLD40D led driver. I am switching to an LCD that had 1000 nit output that can draw 150mA.  Looking for a driver that can handle about 200mA with PWM dimming capability.  Any suggestions appreciated. 

FJB2069 by Senior
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  • 1 replies
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STEVAL-BMS114TX no signs of life

Hello,I am looking for an IC to monitor cell voltages of a 12s lipo battery.I found the L99BM114 IC. To get started, I bought the STEVAL-BMS114TX.Currently, I have connected 12 resistors in series to my lab supply with 48v. In between these resistors...

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dennis3 by Associate II
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  • 5 replies
  • 0 kudos

STUSB4700 - with data

Our application requires charging a laptop at 65W via USBC with USB data passthrough to the laptop as well.  A tablet computer is typically used to communicate with the laptop while it is charging.  The roles would be aligned with the laptop acting a...

stevef by Associate
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  • 0 replies
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L7805 regulator decoupling capacitro faulier

Hi Sir/Madam, My application is photoelectric sensor object detection or object sensing. I am using the L7805 ST make. Positive voltage regulators output voltage is 5V, and I am giving the input voltage as 24V, and the maximum DC voltage is up to 30V...

STPM34 calibration formulas troubles

Hello! I try calibrate STPM34 device, but have some troubles.I created some xmls file with Reference Manual and AN4470 and compare results by STPM3x_Evaluation_Software and it different. 1) RM use default Vref value as 1.18, but App use 1.22) Calcula...

jspacy87 by Associate
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Resolved! l6566bh based flyback converter ground short together

hi all,     i am designing flyback converter based on the l6566bh. i have 2 outputs on the secondary side, both are separate windings (different ground potential) in transformer. can i short together for shared ground reference if isolation is not ne...