Tech Library

With the increasing adoption of renewable energy and the proliferation of EV fast-charging stations, the demand for high-power power supplies is growing.
Transformers used in these power supplies are expected to be more compact, efficient, and generate less heat. Ferrite materials are integral to transformer products. However, core losses (iron losses) in ferrite cores can vary significantly depending on the core size, operating frequency, and load. Therefore, selecting the optimal ferrite material is a crucial aspect of transformer design.
This article introduces the features of the PEL95 material, developed specifically for high-power applications, and key considerations for its use.

With the increasing adoption of renewable energy and EV fast-charging stations, the demand for high-power power supplies is growing. Transformers used in power supplies are expected to be smaller, more efficient, and generate less heat. Ferrite materials are used in transformer products, but the core loss (iron loss) can vary significantly depending on the size of the ferrite core, the operating frequency, and the load. Therefore, selecting the optimal ferrite material is a key point in transformer design. This article introduces the features of the PEL95 material, developed specifically for high-power applications, and key considerations for its use.

AI and edge applications are becoming more sophisticated, requiring enhanced computational capabilities and stricter power supply demands for processors, ASICs, and FPGA/SoCs. These devices must operate efficiently in limited space while maintaining high performance. Vertical power supply overcomes the space efficiency and thermal management limitations of traditional discrete base power delivery system. This article explores the advantages and applications of vertical power supply, focusing on TDK's μPOL, and how it addresses power supply challenges in next-generation AI and edge applications.

As environmental awareness grows and the realization of a sustainable society becomes increasingly important, the mobility market is witnessing an active movement towards “EV adoption," aiming to transition from gasoline-powered to electric-powered motor vehicles. In order to realize higher performance electric vehicles (EVs) and electric motorcycle, next-generation electric motor technology that balances factors such as high efficiency, high reliability, compactness, light weight, and cost performance at a high level is required.
 
In this article, we make a comparison of angle sensor technologies responsible for detecting rotational angles in traction electric motor (hereafter referred to as e-motor) control and explain how our TMR angle sensors enhance your design.

On Board Chargers (OBCs) installed in electric vehicles are becoming increasingly powerful, with an output power of 22 kW. Even at higher power output levels, it is not acceptable to increase the size of the OBC itself, so compact design is required. Capacitors for the resonant circuit function are required to have high withstand voltage and low loss products that can withstand higher power densities than conventional products.
In order to meet this demand, TDK has released a new autograde C0G MLCC series with a rated voltage of 1250 V.

Through an example of the operation of a resonant capacitor in an LLC resonant converter, we will introduce why we recommend a 1250V rated C0G MLCC.

TDK, as part of its continued efforts to bring environmentally friendly technical solutions to the market, has recently developed a plating process that enables manufacturing of thick, highly precise copper patterns on thin-film substrates without using typical exposure/etching technologies. The copper deposition can be to one or both sides of the thin-film substrate to reduce the coil’s [antenna’s] DC resistance (DCR). This innovation has been achieved through an electro-plating process that uses a nano-dispersed organic polymer called polypyrrole (PPy), a material solution from Achilles Corporation and is combined with TDK’s internal process technology. TDK’s unique copper plating process employs an "additive” methodology, where copper is plated only on defined areas to form the required pattern and is in direct contrast to standard methods that etch away from a copper layer in a subtractive process. Additionally, by incorporating TDK’s proprietary high-performance magnetic shielding materials, end-product miniaturization can be realized.

TDK Corporation (TSE:6762) announces the release of five new SMD multilayer varistors (MLVs). As an industry first, these components feature a reduced carbon (CO2) footprint while fulfilling demanding automotive qualification requirements. These parts are the first representatives of TDK’s new X-series, which is continually being expanded for automotive as well as for industrial and consumer applications. The X series satisfies both the growing demand for eco-friendly products, and the commercial requirement for cost-attractive products, while maintaining TDK’s high level of reliability and performance.

The PLE Series power inductor is a high-efficiency, low-leakage flux, ultra-compact power inductor that excels during operation with small batteries, such as those used in wearable devices.
Using our original structural design and newly developed materials, the PLE Series achieves a wide range of inductance values through advanced thin-film processes.
This chapter explains the structure and characteristics and provides other useful information including applications.　

TDK Corporation introduces the xEVCap, a standardized and modular DC link capacitor design for powertrain inverters in passenger cars, commercial and off-highway vehicles, and machinery tools. Typically, such capacitor designs are fully customized, making the development time-consuming and practical only in large production volumes. In addition, if the customer requirements change during the project, this can further increase the time required for capacitor development and thus delay the overall project.

In applications like process automation and food and beverage production, data often needs to be transmitted from sensors within closed metallic structures. So, how to get data into and out of these without drilling a hole? Acoustic Data Link is TDK’s answer.