Power management

Discuss power management solutions. Ask questions and find answers on voltage configurations, short circuit protection, and programming.

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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    

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willzhou by ST Employee
  • 9425 Views
  • 20 replies
  • 18 kudos

Designing High PF AC-DC conveter

We were designing 24v 1.5 Amp smps using l6562 referring application note AN1059 fig 16. getting the 24 output but fluctuating when load is connected and without load power factor is 1.00 and with load it drops down to 0.2 PF and which configuration ...

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D_N by Associate II
  • 135 Views
  • 1 replies
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where is the GUI for EV-VNF9Q20F

Hi ST community i just searched the GUI for EV-VNF9Q20F but could not find it. Please tell us where can i get suitable GUI. and also i'm really glad if you could check the availability of SPC582B against EV-VNF9Q20F.

ro1 by Associate II
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STWBC86JR wireless charge efficiency

Hi,When we were using the STWBC86JR as the wireless charging TX, we encountered a problem. The design is defined as wirelessly charging the battery and supporting the product's operation. The tested charging efficiency was relatively low, only 43%. W...

Wendy by Associate
  • 137 Views
  • 1 replies
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Please show me a mppt IC

Hello!Our company is looking for an ultra-low power solar charging MPPT chip solution. Please recommend some suitable chip models, along with specifications, reference design diagrams, etc.1. The open-circuit voltage of the solar panel is 6V, and the...

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Looking for STWBC2-HP Fixed Power Output Firmware

大家好,我目前正在研究基于 STWBC50-HP 芯片的 2W 无线功率发射器。我的目标是在不使用 Qi 协议的情况下验证硬件功能,用于学习和测试目的。我已经完成了发射器硬件设计,现在正在努力寻找一种无需 Qi 通信即可输出固定功率的固件,例如演示或示例项目,例如:STWBC2-FW-固定功率输出、或任何允许恒定功率输出(例如,19V 2.6A)而无需协议协商的类似固件。不幸的是,我在 ST 网站资源或 STM32Cube 软件包中找不到确切的固件。任何人都可以分享下载链接或提供在哪里找到此固件...

STSW-2KW5CH48V - source code and related documentation

Hi,I am planning to design a 1.5 kW EV charger based on the STSW-2KW5CH48V reference design. However, I require the source code and related documentation to proceed with the development. Could you please provide the necessary source code and all rele...

Ranjith by Associate
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Where is the Back-EMF on the STEVAL-ESC001V1 schematics ?

Hello,I am trying to develop my own sensorless motor control using the STEVAL-ESC001V1 Board. The motor used is a 6 poles BLDC motor. I have successfully been able to run the motor in open loop and it’s running well.In order to have feedback and esti...

GMich.4 by Associate
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  • 2 replies
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Need LED backlit LCD 200mA driver with PWM dimming

STM32F746G-disco board currently uses a STLD40D led driver. I am switching to an LCD that had 1000 nit output that can draw 150mA.  Looking for a driver that can handle about 200mA with PWM dimming capability.  Any suggestions appreciated. 

FJB2069 by Senior
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  • 1 replies
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STEVAL-BMS114TX no signs of life

Hello,I am looking for an IC to monitor cell voltages of a 12s lipo battery.I found the L99BM114 IC. To get started, I bought the STEVAL-BMS114TX.Currently, I have connected 12 resistors in series to my lab supply with 48v. In between these resistors...

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dennis3 by Associate II
  • 257 Views
  • 5 replies
  • 0 kudos