Wireless charging coil modules meet Qi global standard
The RWC5353 series comprise transmitter coil modules that meet the Wireless Power Consortium’s WPC) Qi standard, the global standard for wireless charging. 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,” said Jill Tsai, product specialist at Laird. “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.”
These RWC5353 series charging coil modules use ferrite material 28, which is not only WPC recommended but also improves reliability. The power transmitter in the modules is A1 compliant and can support up to 5 W of power transfer. This complete solution features a high Q factor for maximum wireless power charging efficiency and is designed for extended operating temperatures of -40° to 85°C.
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. The company’s RWC5353 series provides a standard solution to help shorten design cycles for engineers who are developing wireless charging devices.
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