Power management

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

Resolved! Solar charging and autonomous power supply for MCU

Hi All,I'd like to create a PCB for my school project that captures energy from a small solar panel using SP1040. The harvested energy will then be used to charge a LiFePO4 battery (3.6~3.7V) through the LD6924 battery charger. Additionally, the volt...

Resolved! How to stop RF activity on STM32WB55RG

I am using Zigbee wireless communication using STM32WB55RG. I would like to reduce the current consumption to 1μA after it has finished its role, but the current does not go down. What should I do now

VND5004A-E : Is 100A current limit per channel?

On its datasheet, it says 100A typical for current limitation. Just to confirm this is 100A per channel. Thanks.

Resolved! component identification "st bek p420"

Hi, On a power electronic board I have this component "ST BEK P420" in parallel with the power input. I think it's a costant current regulator. I need a spare part or at least its datasheet in order to adapt another component. I hope you can help me....

Resolved! Part markings

Attempting to identify this part.

Resolved! Can I directly connect L6824D battery charger output to MCU VBat?

Hi all,I'm interested in utilizing a solar cell as the power source for my MCU project. To achieve this, I've implemented a power harvester that, in turn, employs the L6924D battery charger to efficiently charge a lithium battery. I'm seeking guidanc...

Topology selection

Hi TeamMy Design inputs:input voltage range 1:- Vin min:316 Vdc, Vin nominal:587Vdc, Vin Max: 815Vdcinput voltage range 2:- Vin min:417 Vdc, Vin nominal:700Vdc, Vin Max: 1000Vdcinput voltage range 3:- Vin min:417Vdc, Vin nominal:800Vdc, Vin Max: 1200...

VND5050JTR-E channels in parallel ?

Hi,I'm need a high side switch ( 24V/10A ) and was thinking about the VND5050JTR-E, but in order to avoid junction overheating, I'd need to split my current between the 2 channels. Does anything in the chip prevents me to to do this safely ?Best rega...

GUI L99615C Software issue

Hello,I have a problem with connection L99615 with dedicated software STSW-L99615C. First of all, there is no automatic connection to the com port (I read that it is possible, so I made it manually but it still looks strange - one time I saw that my ...