Power management

Resolved! Review Request: 24V / 200A Pre-Charge & Master Kill Circuit for a Closed System

Hi everyone,I am designing a custom Power Distribution Board (PDB) handling up to 200A at 24V. This PDB will eventually interface with an STM32 and a Jetson Orin Nano for telemetry and control, but my current focus is solely on verifying the robustne...

EVAL-L9963E not working

I am testing the board with a 14s Li-ion battery, but I am unable to read the cell voltages or configure any register through the GUI. I shorted the X1 and P2 power supply inputs and supplied 12 V to both. This was the only setup in which I could g...

Communication issue with L9961

can someone help me with communication of l9961 chip to get voltages of 4s cells n current n charge accumulated by using esp32 or aurdino i dont have this chip n i am not a coder i tried my best but can get any data from the chip just i2c add 0x49 n ...

L9961 Source or example code and cell models

Hello, we are in the process of developing a BMS using an STM32 and L9961. We were wondering if there was any source or example code of a full BMS we could have access to in order to speed up our development. I am aware of the example code on the pro...

Resolved! ST1S10PHR Buck Converter Not Regulating (Output 0.79V)

Dear ST Technical Support Team,I am currently using the ST1S10PHR buck converter in my custom PCB design to convert 12V input to 5V output.However, the regulator is not switching to the expected 5V output. The measured output voltage remains around 0...

Question About Using EVALSTGAP4S for a 7-Level Cascaded H-Bridge Motor Drive

I am currently considering the EVALSTGAP4S evaluation board for a laboratory prototype, and I would like to ask a few technical questions about its possible use in a motor-drive application.My goal is to build a 7-level cascaded H-bridge (CHB) multil...

Resolved! Meaning of the 'N' letter on STM part BAT54CNFILM-H/J

Dear All, Could you please share us a technical document to show us what was the exat meaning of "N" letter of your part BAT54CNFILM-H/J ? Actually we ordered 6K pcs of your part BAT54CFILM from Digikey and its Digikey part number is 497-3786-2-ND bu...

Resolved! Triac Ripple Voltage T1250H-6I (with schematic)

HelloI am currently developing an AC switch for a heating boiler in a coffee machine.The boiler has a power rating of approx. 1200W. To control the boiler, I have opted for a triac circuit (T1250H-6I) with an optotriac (14230634300) and ZCC. I used ...