Power management

I've been trying to write my own code for a BLDC sensorless control. I've been having difficulty detecting bemf in the open winding.

My spice model looks good but in the hardware the bemf does not cross Vd/2. On some phases it is above Vd/2 and rising while on others its below Vd/2 and falling. I'm using a STSPIN230 as the triple half-bridge and am pulsing both the high-side and l...

What is the body marking for a LD3985M33R voltage regulator?

Asking because there doesn't appear to be any mention of body markings in the datasheet.

STEVAL-ISB043V1 documentation and software

Hello, we just bought two evaluation kits ST : STEVAL-ISB045V1 and STEVAL-ISB043V1.It seems impossible to find documents relatives to STEVAL-ISB043V1 such as document we found for STEVAL-ISB045V1 :UM2367 "Getting started with the STEVAL-ISB045V1 2.5 ...

Hi, I have to buy ST1S14PHR ic industrial grade but this ic should be vacuum compatible so can you please help me to confirm whether this is vacuum compatible or not? If yes then how ?

Two LD29300 in parallel for increased output current

Hello,I'm trying to convert 20V/5A SMPS power to 19V for my noise-sensitive application. I couldn't find a good buck converter for my design.I came across LD29300 and saw that the specs except the output current meet my requirements. So I would like ...

Wireless charging coil selection

Hello.We are trying to develop a new product that will implement wireless charging technology and we are trying to follow the guidelines noted in the Qi specification. We have our eyes set on the STWBC-EP family.There are some considerations for this...

IHM06A1 STSPIN220 stepper motor is getting maximum current and there is voltage drop while stepper motor is in rest condition.

HelloI am intern and I am trying to control stepper motor by IHM06A1 StSpin220 stepper motor using STM32F401RE. When motor is in rest mode then there is voltage drop and STSPIN220 is taking maximum current and voltage becomes half with any motor. I a...

Read actual voltages from STPMIC1

I'm reading the datasheet of STMPiC1 and I wonder if there's a way to read the actual voltages and/or currents. Not the setpoint ( = control registers) but the real voltages at one moment.

STEVAL-ISC005V1 evaluation board - not getting 15V from PDO2

I bought STEVAL-ISC005V1 evaluation board from digikey, used DA45C-J3WEU  usb c type from artesyn embedded technologies.(Capable for providing 15V/3A)When i connected adapter, i got 19V from VSINK and PDO3, but i didn't get 15V from PDO2, led is not ...