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MOSFET protects wireless earphones while recharging

MOSFET protects wireless earphones while recharging

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By Rich Pell



The MOSFET, says the company, is designed to control excessive current flowing into wireless earphones while recharging the battery in order to protect wireless earphones from being damaged. The company has previously been providing what it says is the world’s highest volume of MOSFETs for smartphone battery charging protection and the new device is its first for the wireless earphone market.

The company says it expects that its place as the global leading supplier of MOSFETs will be solidified by virtue of increased demand in the variety of electronic products including wireless earphones. According to forecasts, the size of the wireless earphone market may jump from 120 million units in 2019 to 230 million units in 2020, with subsequent annual growth rate as high as 90 percent.

The new MOSFET is designed to prevent damage to the delicate circuitry of the wireless earphone charging case by blocking excessive voltage from flowing to the charger. It also allows for a highly-stable charging environment by blocking electrostatic discharge as high as 2 kV from penetrating into the earphone charger, which often occurs during recharging.

In addition to implementing strategies to increase the market share of MOSFETs for wireless earphones, the company says it is poised to expand the application of MOSFETs into wearable products such as smartwatches and VR (virtual reality) headsets.

“The charging performance is one of the key elements of wireless earphones in determining their overall quality and competitiveness,” says Mr. Y.J. Kim, CEO of MagnaChip. “Our new MOSFET will contribute greatly to the increase of charging stability. Based on our research and development capabilities progressed over the last several years, MagnaChip sees this sector as an excellent opportunity to diversify our target markets and we will continue to offer top quality MOSFET products for diverse applications.”

MagnaChip Semiconductor

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