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
L6470 motor stalls around 1500 steps/s
Hi All!Doing a project where I need the L6470 to run a Nema-17 motor with 100:1 gearing. The motor is rated for 1.7A. The power supply is set for 24V and 1.7A. However, I cannot get the driver to run the motor at its rated speed. It should be able to...
How to calibration fomula of CT for STPM34 ?
Hi All; I would like to calculate CT. I have formula below.I factor = VREF / (AI * CALIB_I * DPOW * KSI * KINT ) VREF = 1.18 from datasheet AI = 16 from datasheet CALIB_i = 0.875 from datasheet DPOW = removed KSI = Rshut = 0.05 ohm when I calcurat...
How to set load capacity for L6470?
I m using L6470 which is working fine without load, but when load is applied the motor stuck. Which parameter i should consider for it?also how to reduce stepper motor noise?My current configuration are like thiswrite_buffer[0]=CMD_SETPARAM |REG_MAX_...
How to calculate case to junction temperature of 7805.
We have tested our product at Temperature: 75-degree Celsius and humidity: 30%So we getting Case temperature: 116.5-degree Celsius and Ambient temperature: 70 degrees Celcius.
Can I have the reliability data for the part BU931P?
Hi all, I'm currently using the ST micro BU931P. I need reliability information on this part, life tests, thermal cycles, HAST, etc, the ESD level, MSL level, FIT and MTBF. Can you share these information with me?Thanks very much in advance for your ...
Selecting SPV1050 for energy harvesting from solar cell
Hi,This is John from Qmax Systems, We are designing a product - energy harvesting from solar cell. Our application requires a boost converter to convert 0.5V to 4.2V with an output current of min 100 mA. Do you think SPV1050 will support this applica...
Why isn't STM providing proper support for it's reference designs
Hi,Am a Designing enginner.I designed taking certain reference designs from ST.But when I posted certain questions regarding those designs I got the reply that there is no support offered at present for them and they directly closed the posted.I was ...
I want to know about error while loading program in STWBC-EP digital controller.
I have STEVAL-ISB044V1 board. I replaced new stwbc-ep digital controller. But board can't start to work. So i try to load program using command prompt and serial connection, but synchronization error is coming.What is solution of it ?
How to adjust driving current with STSPIN820
I use STSPIN820 to drive the stepper motor, which is noisy when it runs at low speed. I tried to reduce the supply voltage and the noise problem improved, but still could not meet the use scenario, although I reduced the voltage to the chip allowable...
Troubleshooting with spv1040 panel shunting
Hi!We developed a device using the SPV1040 as a DC-DC converter connected to the PV panel (5V MPPT 0.150A sc)When the no-load voltage of the panel is less than 2 volts, but the same panel when connected to the converter produces a much lower voltage....
