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ROHM outs Qi-certified medium power receiver reference design

18 Jan 2016

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ROHM has revealed the certification of its reference design using the BD57015GWL wireless power receiver IC. It has previously acquired certification from WPC for its reference design using the BD57020MWV wireless power transmitter IC in October 2015. This latest receiver is the first in the world to be compliant with the latest Qi v1.2 standard for medium power, stated the company.

Together, both reference designs using the BD57020MWV and BD57015GWL provide a complete solution for delivering medium power wirelessly to portable devices, ROHM added.

ROHM's Qi-certified medium power receiver reference design

ROHM's Qi-certified medium power receiver reference design

WPC's Qi standard for medium power has attracted attention as a next-generation standard for inductive power transmission that will enable wireless charging of tablet PCs while allowing smartphones and other mobile devices to be charged up to 3x faster than the existing low power standard (5W). In addition, a Foreign Object Detection (FOD) function is included to provide greater safety by detecting foreign metallic objects before power transfer to protect against possible damage due to overheating.

Circuit diagram of ROHM's reference design

Circuit diagram of ROHM's reference design

Wireless power technology is garnering increased interest in the mobile device market due to the capability of charging a variety of devices using a single charging pad while also contributing to improved device safety and reliability by enabling device connectors to be made more water-resistant and dust-proof.

In addition, standards organisations aimed at popularising wireless power such as WPC are being established in order to formulate international standards for not only devices such as smartphones, but also infrastructure, including hotels, airport lounges and vehicles, in the US and Europe.

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