TDK Qi compliant planar wireless power coil offering multiple benefits

TDK has introduced its new recently developed MP-A28 Wireless Power Pattern Coil for wireless charging devices. The Qi compliant planar wireless power coil uses a unique copper patterning technology to benefit the end-user. TDK part number to order this coil is WCT38466-N0E0SST01, whereas Wireless Power Consortium [WPC] has designated this new coil as MP-A28. This coil features intricate coil patterns that cannot be duplicated by the use of discrete wires and yields tight trace width and gap control which can only be achieved by using finest etching process. This coil's copper trace thickness can be changed accurately at ease and flexible way as per the needs of application requirements. TDK has applied its expertise in copper plating processes to construct metal coil structures used within power inductors to make this wireless power coils. TFM power inductor series from TDK is made using this plating process of high aspect plating (HAP) copper technology to increase the coil pattern’s cross-sectional area to reduce direct current resistance (DCR). Advantages of this coil includes: Better control and shaping of the magnetic field (H), reduction/ removal of the low efficiency (“dead”) areas around the edges of the complete coil. Thinner and lighter over all charger designs utilizing the MP-A28 coil assembly, improving magnetic coupling a...