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
L7985A with lower quiescent current.
I'm searching for a pin to pin replacement for the L7985A with same pinout, same (or better) characteristics, with a lower quiescent current. Any help will be very appreciated. Thanks.
Regarding shunt resistor value in STPM10 mettering device.
Hello. I try tu adjust the value of shunt resistor in STPM10 electronic circuit.First I placed one 0.5mOhm resistor value, and I watched that 40W lamps meassurement is not very exact. Maybe I should to increase this value. But I have read that maxim...
Resolved! Stop LED flickering with a Snubberless™ Triac
I have a problem with triac BTA06-600B, when I try to power off some LED lamps they start flickering. I use triac to manage the main power (220V 50Hz), if the load is a traditional, halogen or cfl lamp all works fine. I tried to unmount the snubber c...
push pull converter design
I made a push-pull converter using sg3525a. my problem is the output voltage will drop when I connecting 100-watt load or more.input voltage is 24 volt and the output is 350 volt. the frequency is 100khz. using MOSFET irfp4568. using RC snubber with ...
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...
