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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.

00 Files selected for download

技术文档

    • Description 版本 文档大小 Action
      AN4900
      How to tune STEVAL-ISB038V1 wireless charging evaluation kit for wearable applications
      4.0
      1.1 MB
      PDF
      AN4900

      How to tune STEVAL-ISB038V1 wireless charging evaluation kit for wearable applications

出版刊物和宣传资料

    • Description 版本 文档大小 Action
      STWBC无线电池充电器 09.2017
      828.71 KB
      PDF
      STWBC-EP扩展无线电源 12.2017
      853.72 KB
      PDF

      STWBC无线电池充电器

      STWBC-EP扩展无线电源

    • Description 版本 文档大小 Action
      电源管理 2017版指南 09.2017
      4.42 MB
      PDF

      电源管理 2017版指南

eDesignSuite

转换器

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电源管理

Part number Description
STWBC Digital controller for wireless battery charger transmitters supporting Qi A11 topology
STWBC-WA Digital controller for wireless battery charger transmitters for wearable and smart watches applications
Part number
Digital controller for wireless battery charger transmitters supporting Qi A11 topology
Digital controller for wireless battery charger transmitters for wearable and smart watches applications