Wireless Chargers
Wireless chargers are expected to become ubiquitous in hotels, airports, cafes and other public places as they enable to top up the batteries of portable and wearable devices, letting the user forget about cables.
In a Wireless battery charging system, power is transferred by electromagnetic induction between a transmitting pad - or dongle (TX) - and the battery-powered device (RX), such as a smartphone, smartwatch or sports gear. The power transmitter unit controls the current in the transmitting coil to transfer the correct amount of power as required by the receiver unit that continuously provides this information to the transmitter by modulating the transmitter carrier frequency through controlled resistive or capacitive load insertion. Generating the correct amount of power guarantees the highest level of end-to-end energy efficiency and helps limit the device’s operating temperature.
We have a range of wireless battery charging solutions including transmitters and receivers providing low stand-by power and features like foreign objects detection (FOD) as well as evaluation and development tools and reference design to help develop high-efficiency and compact chargers compliant with the most common wireless charging standards including Qi and AirFuel.
解决方案
HW Eval Boards
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型号
Description
Qi-based wireless power receiver optimized for wearable applications up to 2.5 W using STWLC33Dual mode wireless power evaluation board for Qi and Airfuel inductive receiver and Qi-based transmitter with STWLC33
资源
技术文档
| Description | 版本 | 文档大小 | |
|---|---|---|---|
|
AN4900: How to tune STEVAL-ISB038V1 wireless charging evaluation kit for wearable applications | 4.0 | 1.1 MB |
出版刊物和宣传资料
工具与软件
| 型号 | 制造商 | Description |
|---|---|---|
| ST-DIODE-FINDER | ST | Diode product finder application for Android and iOS |
| ST-VREG-FINDER | ST | Linear and switching voltage regulators and voltage reference applications for smartphones and tablets |
| 型号 | 制造商 | Description |
|---|---|---|
| STSW-ISB042GUI | ST | Graphical user interface for the STEVAL-ISB042V1 evaluation board based on STWLC33 |
| STSW-ISB044FW | ST | Firmware for the STEVAL-ISB044V1 wireless power transmitter evaluation board based on STBWC-EP |
| STSW-ISB045FW | ST | Firmware for the STEVAL-ISB045V1 wireless charger transmitter evaluation kit based on STWBC-WA |
| STSW-STWBCFWDT | ST | STWBC firmware downloader tool |
| STSW-STWBCGUI | ST | Graphical user interface for wireless power transmitter evaluation boards based on the STWBC chip family |
MORE INFO
No availability reported, please contact our Sales office
Active: In Production.
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