Wireless

Laird Technologies announce wireless charging coil modules

5th August 2013
Nat Bowers
0

Laird Technologies has today introduced the new RWC5353 Series Wireless Charging Coil Modules. Improving efficiency and performance, the RWC5353 Series minimise electromagnetic interference in wireless charging devices. The new RWC5353 series transmitter coil modules meet the global standard for wireless charging, the Wireless Power Consortium’s Qi standard. With more than 20 million people using Qi-phones, the market for wireless charging devices is poised for explosive growth.

“Laird is a leader in ferrite products and offers an extensive line of signal integrity and EMI filtering solutions. We have taken our expertise one step further and developed a solution for the emerging wireless charging market that reduces EMI and improves performance while still keeping costs down,” commented Jill Tsai, product specialist at Laird.

These RWC5353 Series use ferrite material 28, which is not only WPC recommended but also improves reliability. Supporting up to 5 Watts of power transfer, the power transmitter in the new modules is A1 compliant. Designed for extended operating temperatures of -40° to 85°C, this complete solution features a high Q factor for maximum wireless power charging efficiency.

Wireless charging technology requires two coils, a transmitter and a receiver. An alternating current is passed through the transmitter coil in the charging device, generating a magnetic field. This results in a voltage in the receiver coil which can be used to power a mobile device or charge a battery by simply placing it close enough to the charging device.

There are over 200 Qi certified products available on the WPC’s website, ranging from smart phones and tablets to components. Laird’s RWC5353 Series provides a standard solution to help shorten design cycles for engineers who are developing wireless charging devices.

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