KEMET FPL Series WPT Ferrite Tiles
KEMET FPL Series WPT Ferrite Tiles are designed with proprietary ferrite material technology to offer high charging efficiency. Ferrite material is used in tiles, plates, and pads in wireless power-charging systems to increase system efficiency by shielding and reflecting the magnetic field within the inductive transfer area. The FPL tiles increase efficiency in high-power wireless power transfer (WPT) systems from 3.7kW to 30kW in a high operating frequency range of up to 1MHz. KEMET FPL WPT Ferrite Tiles operate in a temperature range of -40°C to +125°C and are available in various geometric sizes. These AEC-Q200-qualified tiles also feature low-temperature rise with high-magnetic flux density.
Features
- Increased efficiency in high-power WPT systems from 3.7kW to 30kW
- High-operating frequency range up to 1MHz
- -40°C to +125°C operating temperature range
- Low-temperature rise with high magnetic flux density
- Available in various geometric sizes on request
- AEC-Q200 qualified (stress test)
Applications
- Automotive WPT
- Industrial WPT
WPT Tile in WPT System
Role of the Ferrite Tile
The ferrite plate suppresses interference between the antenna pad and metal housing. The plate also keeps the flow of magnetic flux clean between the transmitting and receiving antennas, contributing to improving the efficiency of WPT systems. KEMET BH1T ferrite material has been developed specifically to maintain low core loss characteristics over a wide temperature range, which improves the efficiency of the wireless charging power supply system from room temperatures to high temperatures.
Comparison Graphic
How to Select the Ferrite Tile
Designers should select the size of the ferrite tile according to the size of the antenna pad and select the thickness of the ferrite plate according to the capacity of the WPT system. In particular, it is important to choose the optimum thickness because the characteristics deteriorate when the ferrite material is saturated.
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