TDK's Future StrategyWhat TDK Can DoPower Solutions

Complex Solutions That Leverage Competitive Advantage

Building on its strengths in high performance and reliability based on technology accumulated over many years, TDK is working to enhance its position as the leading manufacturer of batteries for consumer use, while also further expanding its range of energy-related products, including its rich lineup of power supply equipment. Leveraging our competitive advantage in developing products from the material and component stage, TDK will offer complex power solutions with high added value.

Expanding Power Solutions Unique to TDK

Today, TDK is focusing on power solutions in addition to sensors and actuators and next-generation electronic components.

Energy devices such as lithium-ion polymer batteries, as well as power supply equipment, generally relied primarily on conventional stand-alone sales. By pivoting to offer high-value-added units that combine these products with hardware and software, TDK's policy going forward will be to push aggressively ahead with proposals for unique power solutions in the three priority markets of automotive, industrial and energy, and ICT.

Examples of the Integration of TDK Elemental Technology for High-Value-Added Power Solutions

• Power Transfer Coil Technology
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• Capacitor Technology
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• High Reliability Design Technology

Wireless Power Transfer System for Industrial Equipment

Expectations are high for the introduction of wireless power transfer systems in the industrial equipment sector as well, including for automated guided vehicles (AGVs) and robots, in terms of their ability to improve convenience, safety, and reliability, while reducing manpower and costs through automated charging. Envisioning a wide variety of applications, TDK has developed three platforms (1kW, 200W, 50W for rotating bodies) that allow for the building of wireless power transfer systems that employ advanced magnetic field resonance methods.

• Ferrite Technology
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• Coil and Transformer Technology
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• Cooling and Heating Design Technology

On-board Chargers for EV and PHEVs

EVs and PHEVs are installed with on-board chargers used to charge the main battery. The chargers are comprised of a rectifying and smoothing block that converts commercial AC power to DC, a power factor correction (PFC) block, a DC-DC converter, and other components. One of TDK's strengths lies in the fact that it has commercialized a diverse range of electronic components that comprise on-board chargers, and can offer compact, lightweight, high efficiency on-board chargers that represent a concentration of power electronics technology.

• Ferrite Technology
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• Power Conversion Technology
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• Circuit Design Technology
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• Coil and Transformer Technology

Regenerative Energy Bidirectional DC-DC Converters

In industrial equipment such as elevators and cranes that run on motors, braking of the motor releases wasted energy in the form of heat. Bidirectional DC-DC converters function to store that regenerative energy in a battery, providing a boost for stored power when the motor is started and requires a high level of power. TDK can offer comprehensive systems that integrate power conversion, storage, and control.

• Ferrite Technology
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• Coil and Transformer Technology
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• Circuit Design Technology

AC-DC Power Supply Units for Storage Battery Charging

Power storage systems using lithium-ion batteries are widely used in peak cut and peak shift power demand systems as well as emergency power sources during disasters. TDK's AC-DC power supply units for storage battery charging utilize advanced power electronics technology to provide a constant-voltage, constant-current (CVCC) power supply optimized for charging storage batteries. The units offer particularly outstanding charging performance when used in commercial high-capacity power storage systems.

• SESUB Technology
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• Circuit Design Technology
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• Assessment and Simulation Technology

Power Management Unit (PMU)

TDK's semiconductor embedded substrate (SESUB) is a proprietary substrate technology for embedding thin IC chips in a resin substrate, allowing for three-dimensional mounting of other components. Power management units installed in smartphones and tablet devices were developed using this technology. Power supply management functions, including DC-DC converter circuits, battery charging circuits, and LCD backlight power supply circuits are packaged in a single module, not only saving space, but enhancing heat discharge and noise characteristics.

TDK's Wireless Power Transfer System Development Portfolio

TDK's wireless power transfer systems, which target the three priority markets of automotive, industrial and energy, and ICT, feature a broad development portfolio that includes high-power systems for EV and PHEV use, mediumpower systems for industrial equipment, and low-power systems for wearable and mobile devices. Our greatest competitive advantage is that we have the wide range of core technologies needed for system development, as well as many of the electronic components and devices that comprise those systems.