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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    

willzhou_0-1717985741931.png
willzhou by • ST Employee
  • 12962 Views
  • 22 replies
  • 30 kudos

SMPS Pulsing in hiccup mode

Hello, I have designed and assembled a SMPS based on the EVAL-STCH03-45W evaluation board. What I have noticed, is that the power supply is outputting 1 Hz pulses with short buzzing sounds. These symptoms usually mean the hiccup mode is activated. Ho...

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fing by • Associate II
  • 806 Views
  • 0 replies
  • 0 kudos

L4986 startup problems with external VCC supply

I am evaluating a PFC with the EVL4986-350W evaluation board.To be able to use Boost coils without the extra winding I want to supply the VCC voltage from a buck converter connected to the output voltage. The voltage from the buck is 17V.I have tried...

Jan-A by • Associate
  • 441 Views
  • 0 replies
  • 0 kudos

PowerSTEP01 - is the ResetDevice command conditional?

I have a PowerSTEP01 that is behaving unexpectedly when I send the ResetDevice command.If I send it when my system starts then everything is ok when I check the STATUS register.However, if I send ResetDevice after the motor has been moved (sequence e...

CTapp.1 by • Senior III
  • 383 Views
  • 0 replies
  • 0 kudos

L293D

Hi everyone, I'm just starting in this field and I'm designing my first product. I'm designing a device that will use the L293D microchip and I'd like clarification on the following issues:1) There is a maximum value for the high voltage input curren...

Rafa by • Associate
  • 602 Views
  • 1 replies
  • 0 kudos

Disable L6924D maximum charging time

According to datasheet, L6924D has the possibility to set a maximum charging time, defined according to the capacitor connected in TPRG pin. But what should be done if the maximum charging time limit is undesirable? Can I short TPRG to GND to achieve...

MLuca.2 by • Associate
  • 751 Views
  • 2 replies
  • 0 kudos

Resolved! Need Help for PCB Design Problem Solution

Respected Sir/Ma'am,                                   I'm designing 2KW SMPS from reference schematics design of "STEVAL-ISA172V2: 2 KW fully digital AC-DC power supply (D-SMPS) evaluation board". I've not faced any obstacle in designing schematics ...

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