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...

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willzhou by ST Employee
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  • 15 replies
  • 10 kudos

Power dissipation of L9960

Hi,we are using L9960 H-Bridge -L9960 for automotive application.Here are the inputs to consider using L9960.ParametersMinTypicalMaxRemarksInput Voltage (UBAT)8. V13.5 V18. VL9960 device will supports 4.5V > < 28VOutput Voltage (Out)7.4 V12.3 V15.75 ...

Amrutha by Associate
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  • 2 replies
  • 0 kudos

Resolved! Unable to find diode or cross ref

I am having difficulty locating information regarding some diodes. These diodes are either zener or TVS.Can anyone help me identify it? A link to a cross reference information page would be really helpful. Will be looking to source them for repair pr...

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Kazit by Associate
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  • 2 replies
  • 3 kudos

Stepper motor moves when touched

I'm currently controlling a closed loop stepper motor with an Arduino Uno R3 via the CL86 stepper motor driver. I also connected 2 buttons with pull-down resistors with which I can, for example, rotate the stepper motor by 90 degrees in one direction...

allen22 by Associate
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  • 2 replies
  • 0 kudos

STUSB4500 Default PDOs without I2C

Hi, We like to use the STUSB4500 without having it to progamm via the I2C. So we need to use the standard configuration. If I understand well, these are has 3 PDOs: 5v/1.5A - 15V/1.5A and 20V/1A.However, the 20V/1A is too high. Is there a way to prev...

OlafM by Associate
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  • 2 replies
  • 0 kudos

81AB-C2A

Hi, I've been tasked with repairing an old analogue/mechanical instrument cluster from a Ford Transit van. The fuel and temp gauge instrument was not working. I determined that the voltage regulator wasn't working. It has labels of '950A' and '81AB-C...

labvja by Associate II
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  • 4 replies
  • 2 kudos

Resolved! STEVAL-WBC2TX50 Evaluation Board Power Issue

Hi, I have a STEVAL-WBC2TX50 Evaluation Board, and I am having issue with input power. Whenever I supply Vin to the board, it takes a lot of current at low Vin. Can you help me solving this problem? Thank you!

EE2024 by Associate II
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  • 10 replies
  • 2 kudos

Insulation Values of BTA41-600 BRG in Insulated Package

Hello,We are using the BTA41-600 BRG in an insulated package for our application. However, the datasheet provides limited information about the insulation values of the package. Could someone please provide more detailed specifications regarding the ...

L9963E serial cell 42s

hi.I configured a centralized BMS using three STM32L431 and AEK-POW-BMS63ENA.Instead of using a battery, a battery pack was implemented using a DC power supply and a fixed resistor.(Refer to the picture below)When DC150V is applied, the voltage of ea...

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Jeonghun by Associate
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Resolved! stwlc38, stwbc86

Hi I am working on a project using stwlc38 and stwbc86.They charge well, but the charging distance is an issue.I need it to be able to charge at a distance of around 2.5T, but when I go beyond 2T it won't charge.So, I put a Tx coil like the one I use...