Ultra-compact DC-DC circuit technology Insulated Tri-Magic Converter (TM)
Significantly miniaturized and made more efficient insulated DC-DC converters through ON-ON / ON-OFF operation modes [Simple calculation tool and technical materials provided].
This method uses a low permeability powder core "MBS" in the main transformer and adopts ON-ON / ON-OFF operating modes, enabling the miniaturization of magnetic components to about 1/3 and the power board size to about 2/3 compared to conventional circuits (according to our estimates). In addition to achieving space-saving in the power circuit without increasing the operating frequency, further miniaturization is possible by increasing the operating frequency. It is possible to achieve a compact and high-efficiency DC-DC converter without using SiC or GaN, while still using general-purpose Si. 【Features】 ■ Realizes miniaturization and high efficiency of DC-DC converters (power circuits) ■ By suppressing the amplitude of the excitation current, it also achieves a reduction in ΔB (change in magnetic flux density) and the resulting low loss ■ The output ripple current is approximately halved compared to conventional technology, allowing for a reduction of the output capacitor by half ★ We are currently offering a simple calculation tool. Please contact us if you are interested. You can also view technical materials by clicking the "Download Catalog" button. ★ We will be exhibiting at the Techno Frontier Power System Exhibition and will also be speaking at the organizer's seminar. For more details, please refer to the basic information section.
basic information
【Exhibition Overview】 Date: July 23 (Wednesday) to July 25 (Friday), 2025 Venue: Tokyo Big Sight, West Exhibition Hall, Halls 3 & 4 (4-W36) On the day of the event, we will have prototype machines with 1.6kW and 3.3kW that demonstrate miniaturization. Additionally, on the 25th (Friday) at 12:10, we will hold a seminar. Developer Mitsuaki Fujimoto will explain the features and operating principles of this method in the Exhibitor Seminar (2) venue. 【Principle of Miniaturization】 The main transformer in our proposed circuit technology, "Isolated TriMagiC Converter (TM)," features a structure where the direct input winding is applied to the smoothing choke coil of the conventional current doubler rectifier. This allows for the combined operation of both the transformer and the coil. As a result, the conventional main transformer becomes unnecessary, reducing the total size of magnetic components to less than one-third, achieving miniaturization. We offer our unique powder core "MBS" series suitable for this circuit method. We can also propose circuit topologies tailored to your specifications, as well as transformers suitable for those circuits and provide magnetic components (cores). *For more details, please refer to the materials. Feel free to contact us with any inquiries.
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*For more details, please refer to the materials. Feel free to contact us as well.*
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News about this product（2）
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[Exhibition Announcement] Unveiling the "TriMagiC Converter" that opens the future of compact and high-efficiency power supplies at TECHNO-FRONTIER!
Daiamet Co., Ltd. will exhibit at the "TECHNO-FRONTIER 2025 40th Power System Exhibition" held at Tokyo Big Sight from July 23 (Wednesday) to July 25 (Friday), 2025. At this exhibition, we will introduce various prototype boards and core products, focusing on our unique magnetic material "Powder Core (MBS)" combined with circuit technology, featuring the new insulated DC-DC converter "TriMagiC Converter." Particularly noteworthy is the prototype unit achieving a conversion efficiency of 97.2%, which will be unveiled for the first time, with a power output of 1.6kW. Additionally, we plan to introduce the PoL converter, which we have recently begun joint research on with Nagoya University. Furthermore, during the exhibition, our senior advisor and developer, Mitsuaki Fujimoto, will provide a technical explanation of the new technology "TriMagiC Converter" in a seminar for exhibitors. This seminar will clearly present the technology of insulated DC-DC converters that achieve unprecedented miniaturization and high efficiency through the use of magnetic cores with low permeability and high saturation magnetic flux density, covering the background of development, operating principles, and prototype examples. We sincerely look forward to your visit.
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Notice of Participation in the '2025 YOKOHAMA Human and Vehicle Technology Exhibition' from May 21 (Wednesday) to May 23 (Friday), 2025.
Daiamet Co., Ltd. will exhibit at the "Automotive Technology Exhibition 2025 YOKOHAMA," which will be held at Pacifico Yokohama from May 21 (Wednesday) to May 23 (Friday), showcasing our latest technologies in sintered machine parts and sintered oil-impregnated bearings, as well as our new insulated DCDC converter circuit technology "TriMagiC Converter (TM)" that simultaneously achieves high power, high conversion efficiency, and miniaturization. The "TriMagiC Converter (TM)" utilizes our proprietary magnetic material "Powder Core (MBS (TM))" for transformers and resonant coils, combined with our uniquely developed high-performance insulated DCDC converter circuit technology, resulting in significant miniaturization and efficiency improvements compared to conventional circuits. We will display a circuit board (prototype) equipped with this technology at the venue. Additionally, we plan to showcase a thin motor, the "Axial Flux Motor," which also applies the Powder Core (MBS (TM)) and achieves both high torque and high efficiency. This motor is a next-generation type expected to be applied in electric vehicles (EVs) and industrial robots. We sincerely look forward to your visit.
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Our company provides powder metallurgy and sintered products, primarily focused on automotive parts. Since our founding in 1944, we have experienced various changes over the years, but we have consistently valued our commitment to "maximizing our response to customer requests with sintered products made using powder metallurgy." We are also actively challenging ourselves in new fields, focusing on the development and manufacturing of products that are central to improving automotive fuel efficiency technology and natural energy generation. Currently, we are expanding our business scope by leveraging our sintering expertise to take on new challenges in the power electoronics fileld. Please feel free to contact us.