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
  • 2997 Views
  • 14 replies
  • 6 kudos

L6699 incorrect startup

Hello, I have an issue with the L6699. The controller initiates the start-up sequence but after a few pulses it stops permanently.I describe the application first:Vin=385VVout=39 to 60 VTransformer magnetization inductance Lm=127uHResonant tank induc...

Gonzalo1 by Associate
  • 281 Views
  • 0 replies
  • 0 kudos

SMPS working on 110V but not working on 220V

Dear Community,I was desinged a SMPS for my circuit which belowed picture. Its working on 110V AC and not any problem. But when I connect it to 220V AC output voltage is going down slowly and about 1 minute later its go to shutdown. I can not find an...

Mnemonic_0-1718975747345.png
Mnemonic by Associate III
  • 185 Views
  • 0 replies
  • 0 kudos

L9963E, measuring battery AC Impedance or EIS

I'd like to use L9963E to measure the AC impedance of the battery at 1 kHz. It requires applying 100 mA current at 1 kHz to the battery and measuring the voltage at 1 kHz, probably with 10 kSample/second or more.  Is it possible? Or should I use anot...

DavidR by Associate
  • 512 Views
  • 3 replies
  • 0 kudos

EVALSTDRIVE101 BLDC driver (sensored and sensorless)

Hello Team,  We want to use your EVALSTDRIVE101 kit to drive our BLDC motor in sensored and sensorless mode. As given in the overview this board can be integrated with any STM32 microcontroller but can you suggest which STM32 board we can buy so that...

sshin.9 by Associate II
  • 266 Views
  • 1 replies
  • 0 kudos

Resolved! Inquiry Regarding L9961 Datasheet

Hello, I checked the L9961 datasheet for information on the cell voltage protection function, but couldn't find the operating voltage.  Other products usually provide Over Voltage Protection (OVP) for cells, but in the case of L9961, only the cell me...

jslee by Associate II
  • 340 Views
  • 1 replies
  • 0 kudos

Resolved! [BLDC] How to get trapezoidal back-emf waveform

Hi All,I'm working on driving sensorless BLDC motor by 120 degrees trapezoidal control.I'm stuck on to get back-emf voltage like below figure:My result is like this.And the circuit used for voltage sens part is as follow.I don't know if it's a circui...

0693W000008ztZFQAY.png 0693W000008ztZPQAY.png 0693W000008ztZjQAI.png
Kenji1 by Senior
  • 2476 Views
  • 8 replies
  • 1 kudos