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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Resolved! Subject is MOC3021 : What is the typical control voltage ?

Il the decription of the datasheet we can read this text :They are designed for interfacing between electronic controls and power triacs to control resistive and inductive loads for 115 VAC operationsBut in the Typical Application Circuit (figure 12)...

MHéna.1 by Associate III
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  • 4 replies
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L7981 Random Dropouts

Hi, I'm looking for technical help on an L7981 voltage regulator issue. We have been using these for years in various designs with minimal issue. On a recent new prototype, I am having an issue I have never seen before, where on occasion the regulato...

MGarr by Associate
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SRC0GS22D POWER RESET

I am trying to reset the power by controlling GPIO3.3V.However, the initial power is ON and OFF only, and there is no control thereafter. 

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KSUWA.11 by Associate
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  • 1 replies
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PM8800 PoE Issues (high ripples)

We designed board with PoE capability using ST PM8800 chip. We encountered some problems.Issue #1When our board is powered from external power supply (Vin(AUXII)=32V) we get output voltage with high ripples and PM8800 nPGD is inactive (High). Ripple ...

DRusi by Associate
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  • 1 replies
  • 1 kudos