Power management

How to find current from battery side ( not motor current ) foc sdk bldc 3 shunt resistor

Hello dear STM community family,I have been trying to develop bldc motor controller for some weeksIn motor control sdk, I want to use 3 shunt current sensing method.I don't want to add shunt resistor more in hardware to read battery current.Could any...

Hello, please give a pdf manual for APIC-S03 HSSOP36 (analog E-L9728TR) and for APIC-D06. I can not find it. Thank you!

Hi all, We are new here. We are thinking of using ST L6203 motor drivers on our robots and are wondering if it is recommend to control motor speed by PWN on the enable pin or is better to PWN either IN1 or IN2 depending on direction.

http://users.ece.utexas.edu/~valvano/Datasheets/L6203.pdf We've had quiet a discussion about this and it would be great to know which method is preferred.CheersTerry

Opto-coupler for L6470 ?

Posted on May 21, 2018 at 16:33It is necessary to apply a opto-coupler between an SPI Master and the L6470 circuit on the X-NUCLEO-IHM02A1 board ? I could not find any information about galvanic isolation in L6470 documentation.#x-nucleo-ihm02a1 #op...

Firmware library of powerSTEP01 Functions and the description of the programming manual

Hello, were can i find the Description and the Firmware library with all the complete funcionsof the ​powerSTEP01 microstepping controllerI want control the powerSTEP01 with STM32 F4 microcontroller via SPI and I/O controli don't find the complete fi...

. What is the equation for setting ILIM with Rlimit?

STEF01FTR

Is this really an n-channel mosfet between IN_HV and L_HV in the SPV1050?

The datasheet shows an n-channel mosfet between the IN_HV and L_HV pins of the SPV1050, but it seems to make more sense if this was a p-channel mosfet. For one thing, I don't think it is guaranteed that the chip will have a high enough voltage source...

Driver selection for High Power LEDs

I'm currently working in a project where I need to control the intensity of 24 high power LEDs in 5 levels. I'm planning to use LumiLeds L1CU-BLU1000000000 (https://www.lumileds.com/uploads/705/PB198-pdf) where the cut-off voltage is 2.83 volts and c...

L6482, BEMF spikes

Hi,I'm using L6482 Stepper motor driver and I'm capturing BEMF spikes that can be up to +/-17V above VS and GND.It been measure at the OUT1A to GND.Is it acceptable? It is not clear in datasheet.Also I don't see any protection devices requirement su...

How to recharge a lead battery in UPS mode

Hello, I would like to recharge a lead battery (6V - 4500mAh) by using two different sources : a solar pannel and/or a micro USB input. The device needs to run in UPS mode (uninterruptible power supply). Do you know if ST proposes some IC that could ...