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
  • 9229 Views
  • 19 replies
  • 18 kudos

How to read voltage and current values in STPM32?

I am working on a project where I wish to read voltage and current values. When I am reading 0x48 register, I am getting zeros. When I am reading some other registers (for example, 0x24, CRC register) which hold default non-zero value, I am able to g...

PAgra.2 by Associate
  • 529 Views
  • 0 replies
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Current sensing and SOC using STC3115AUT

Hi, thereOn page 10 of the datasheet, it is recommended to use 5 to 0.05 ohm resistor for the current sense resistor connected between the CG pin and the GND. If the CG pin is connected directly to the GND, or BAT-, what does it mean to the current s...

ELin.3 by Associate
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  • 1 replies
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Resolved! Marking Information LD1117S50CTR

we have purchase this item LD1117S50CTR recently, Can i get the marking information, our QA department is asking us provide information to process production, thanks.

VICTOR1 by Associate II
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  • 1 replies
  • 0 kudos

STCH03 does not seem to detect an over voltage state

Hi,I'm testing a simple flyback converter using the STCH03L. All seems as expected, however I can not seem to get the IC to detect an overvoltage condition. To conduct the test I am simply shorting out the optocoupler. When I look at the ZCD pin the ...

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Resolved! Discharging a thin film battery - EFL700A39

Hello,I'm trying to discharge the solid state thin film lithium battery EFL700A39, with a discharge current of 0.7 mA, in the aim of reaching a state of charge of approximately 20%. Actually, the problem is the significant difference of voltages whe...

GAbi .1 by Associate II
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  • 4 replies
  • 0 kudos

SPV1050 boost start-up at Vstore=0 with low-impedance source

The datasheet (https://www.st.com/resource/en/datasheet/spv1050.pdf) mentions that the STORE voltage during initial start is charged through a charge pump, when in boost configuration.However, when I set my load to 0 V and input to 2 V, it sure seems...

Jostikas by Associate II
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  • 0 replies
  • 0 kudos

SPV1050 current limiting relationship to Veoc

I have an SPV1050 configured as follows:R4 = 6.2MR5 = 1MR6 = 3.9MVeoc = 3.5VVuvp = 2.78VThe device is configured for boost mode with MPPT set to 75% and Vin = 2V. The device works as expected, except that it will only draw the full specified 70mA cu...

BLamb by Associate
  • 491 Views
  • 1 replies
  • 1 kudos