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
Power management
Discuss power management solutions. Ask questions and find answers on voltage configurations, short circuit protection, and programming.
Forum Posts
L7981 Random Dropouts
Hi, I'm looking for technical help on an L7981 voltage regulator issue. We have been using these for years in various designs with minimal issue. On a recent new prototype, I am having an issue I have never seen before, where on occasion the regulato...
How can I reduce L6472 Stepper Motor Noise due to harmonics?
I have a motor control PCB with x6 L6472PD stepper motor drivers on. 2 of the drivers are being used to drive NEMA17 "hybrid stepper" linear actuators that move a module along a linear guide. The two drive systems are laid out identically, and conven...
Measuring the frequency response of an optocoupler (e.g. PC817C) with different pull-up resistors using a Bode 100.
My test reference circuit is from Mr. Christophe Basso's book: "Designing Control Loops for Linear and Switching Power Supplies By A Tutorial Guide"The picture is showed as follow.Unfortunately, it may be a problem with my test circuit, or maybe the ...
I would like to know when I will be able to get hold of L6480 ICs from distribution
We have had 3 dates in the last month with different distributors where items have been shown as coming in and we have ordered; but when the date passes they become marked as 45 week lead.
SRC0GS22D POWER RESET
I am trying to reset the power by controlling GPIO3.3V.However, the initial power is ON and OFF only, and there is no control thereafter.
PM8800 PoE Issues (high ripples)
We designed board with PoE capability using ST PM8800 chip. We encountered some problems.Issue #1When our board is powered from external power supply (Vin(AUXII)=32V) we get output voltage with high ripples and PM8800 nPGD is inactive (High). Ripple ...
Resolved! Ihm08m1 change shunt
hi I have the ihm08m1 how can I change from 1 shunt to 3 shunt if by default it is soldered on 1 shunt?
L6480 UVLO-Bit problem. Can't get it flip to 1.
Hello,I use the EVAL6480 Board and the STM32 F446RE as MCU to communicate to the driver.My Steppermotor [1] (not exactly this but very similar) has oer phase a resistance of 1,2 ohm.My Problem is that the motor does not turn because the UVLO flag is ...
UVLO flag always on
Hi, Using IHM03A1, I'm driving a 48V-9A motor.According to @Cristiana SCARAMEL (Employee) recommandations, I add 15mOhm/3W resistances in parallel of R1 and R2, so R1 and R2 value is now 13mOhm, I choosed current mode, set run current to 10.2A (132....
