Power management

STUSB4500 I2C information

I put in a support request august 13th regarding information about STUSB4500 i2c communication, but I have not heard anything, so trying here instead. Our goal with this chip is to supply our system with a negotiated voltage and current from a univer...

Need for product that manages ISO15118

​Hello ,my company is developping a Battery management system EVSE, where it needs to realize a communication via protocol ISO15118.My company has know how about power board and so on, but it is not interested on communication part; so we prefer to b...

Hi, I want to design a FOC board for BLDC motors of a quadcopter. What is the most suited ST eval kit or component to start with? I have found two of them: the STEVAL-SPIN3202 and the STEVAL-ESC001V1. Which one suits the best for quadcopters ? Thanks

Hall sensor experience

Hi,Are there any known drawbacks to utilizing a Hall sensor for speed and position feedback in FOC?How is performance for low speeds?

Could I able to control the STEF01 e-Fuse from an FPGA and its return path is not common to the VCC and Vout

Hi,We are using STEF 01 e-Fuse in our design. In that EN pin is controlling through an FPGA but its return path is not common to VCC and VOUT.Please let me know the design will work ?Below I have attached the design approach image.

How to start debugging STUSB4710AQTR based design

I built STUSB4710AQTR design basing in evaluation board. I connected it to Microsoft Surface Go tablet which support USB 3.1 PD . However I don't see any negotiation through CC lane: only tablet send 16Hz .Please advice what can be problem and how to...

Hi, How debug

Hi,I am using STUSB4710AQTR. I build my board basing on reference design. Now I connected it to Microsoft Surface Go tablet. According datasheet this tablet support USB3.1 PD. However I even don't see any negotiation through CC lanes: only tablet sen...

Viper 37LD - does not regulate

I have an ac dc converter project based on flyback (85-270AC / 12V_1.5A-15V_0.125mA) and at the output I do not have voltage regulated. The project was prepared with the help of e-Design.I was able to operate when I pressed the tip of the oscilloscop...

can anyone please help me to under stand calculation of bldc motor ramp up in open loop

please help me to under stand calculation of bldc motor ramp up in open loop 

Why is torque falling at low speed?

I'm running the motor in torque mode with an encoder. It works really well.The only problem I have is that something internal to the FOC software adjusts the torque down at (very) low and zero speed. I assume this is done to avoid the motor overheati...