ネクスファイ・テクノロジー Product Lineup

We would like to introduce a case study on solving challenges in "high voltage and high-speed insulation testing machines." In this case, as SiC power devices are increasingly used in inverters, the voltage and speed of noise have increased significantly, but there was a challenge in that there were no devices capable of performing insulation tests on components. Therefore, by conducting evaluations of motors and electronic components together with users, we were able to understand the specifications they required and design equipment accordingly. We offer a lineup of insulation testing machines tailored to user needs, ranging from low power to high power. [Case Overview] ■ Challenge: Increase in failures due to high voltage and high speed of electrical noise ■ Proposed Solution: Development of high voltage insulation testing machines using our technology ■ Result: A lineup of insulation testing machines tailored to user needs ■ Evaluation: Increased repeat orders, including joint presentations at academic conferences *For more details, please feel free to contact us.

• Switching Power Supply

We would like to introduce a case study on solving challenges in "SiC High Voltage Switching Modules." In this case, there were numerous issues with vacuum tubes regarding lifespan, cost, and delivery, and there was a desire to enhance the performance of switches to evolve the equipment. To address this, we implemented optical communication high-precision technology for stable series connection operation of MOS FETs and know-how to ensure voltage balance between elements. This led to the realization of a high voltage and high frequency module in a compact size. 【Case Overview】 ■ Challenge: To enhance the performance of switches and evolve the equipment ■ Proposed Solution: SiC high voltage switching module based on our unique concept ■ Result: Achieved a high voltage and high frequency module in a compact size ■ Evaluation: In applications for insulation testing machines, high-speed testing became possible, leading to a rapid increase in inquiries *For more details, please feel free to contact us.

• Switching Power Supply

We would like to introduce a case study on solving challenges in "low-temperature plasma power supply (in-liquid plasma)." The customer's issue in this case was the high treatment costs associated with wastewater treatment of difficult-to-decompose substances that cannot be processed by biological or chemical methods. In response, we developed a pulsed power supply with approximately one order of magnitude higher frequency using SiC power devices and a unique transformer structure. We created an in-liquid plasma system compatible with the power supply. Numerous decomposition experiments were conducted with users, demonstrating the ability to achieve high-efficiency treatment. [Case Overview] ■ Challenge: High treatment costs for wastewater treatment of difficult-to-decompose substances ■ Proposed Solution: Decomposition of difficult-to-decompose substances using high-frequency pulsed power supply with in-liquid plasma ■ Result: Demonstrated the ability to achieve high-efficiency treatment ■ Evaluation: Numerous inquiries expressing interest in jointly commercializing the system *For more details, please feel free to contact us.

• Switching Power Supply

We would like to introduce a case study on solving challenges related to "power supplies for low-temperature plasma (atmospheric pressure plasma)." The customer's issue in this case was that the throughput of the equipment was not increasing due to inefficiency, leading to higher costs. In response, we proposed increasing the speed of the power supply (improving the voltage rise time) and enhancing efficiency through high frequency. We confirmed high efficiency through increased plasma density, and it was demonstrated by multiple users, leading to the initiation of trial operations aimed at full-scale adoption (introduction into mass production lines). [Case Overview] ■ Issue: Increased costs due to low throughput ■ Proposed Solution: Efficiency improvement through speeding up the power supply and increasing frequency ■ Result: Confirmation of high efficiency through increased plasma density *For more details, please feel free to contact us.

• Switching Power Supply

Our company is conducting decomposition experiments of refractory organic compounds using a reactor system that employs high-density liquid plasma. The plasma actively generates a large amount of hydroxyl radicals, hydrogen peroxide, ozone (ozone water), and ultraviolet light, enabling the complete combustion (decomposition) of organic compounds. The strong shock waves from the plasma promote demulsification and the formation of micelles. 【Features】 ■ High decomposition efficiency ■ The plasma actively generates a large amount of hydroxyl radicals, hydrogen peroxide, ozone (ozone water), and ultraviolet light, achieving complete combustion (decomposition) of organic compounds ■ Strong shock waves from the plasma promote demulsification and the formation of micelles *For more details, please download the PDF or feel free to contact us.

• Plasma Generator

Our company utilizes silicon carbide (SiC) semiconductor devices, which are power devices, to develop and produce high-voltage equipment. By uniquely connecting SiC transistors rated for 1kV in series and parallel, we have achieved high-voltage switch modules exceeding 10kV. We have successfully generated high-voltage, high-speed, repetitive pulses. By applying high-voltage equipment equipped with SiC to various advanced technologies and products, we will contribute to energy conservation and the resolution of environmental issues. 【Features】 ■ High-voltage, high-speed pulses - Switching high voltages exceeding 20kV at over 100kHz ■ High-current pulses - Outputting current pulses exceeding 500A with a repetition rate of over 1kpps ■ High slew rate - Having a slew rate of over 200kV/μs, suitable for use in insulation tests and more *For more details, please refer to the related links or feel free to contact us.

• switch
• Other semiconductors

We would like to introduce application examples of DC circuit breakers for offshore wind power generation and EV rapid charging transmission networks. In offshore wind power generation, significant growth is expected in the future, making a large number of high-voltage DC circuit breakers essential. Our company is jointly researching and developing circuit breakers for 1.5kV and 6.6kV DC transmission networks with a major power equipment manufacturer, and we have successfully conducted a demonstration experiment at 1.5kV. 【Overview of the Case】 - The market size for high-voltage DC transmission systems is estimated to reach 13.8 billion dollars in 2024 and 21.5 billion dollars by 2029. - As a crucial component, we will enter the market with our unique hybrid circuit breaker that can perform semiconductor interruption using our SiC high-voltage switching module. *For more details, please download the PDF or feel free to contact us.

• Circuit breakers and switches

We would like to introduce examples of applications for our accelerator. In pursuit of semiconductorization of the thyratron, which has not been achieved with Si so far, we are utilizing our high-precision, high-reliability SiC high-voltage switching module. It has passed tests under stringent conditions and contributes to the miniaturization, portability, and ultra-high performance of accelerators. 【Impact on Industry】 ■ Various radar equipment: weather radar, tools for monitoring global environmental conservation, etc. ■ Medical field: CyberKnife, particle beam cancer treatment devices ■ Safety and security: deterioration diagnosis (for bridge piers, highways, tunnels, etc., for national resilience), container inspection (coastal security measures) *For more details, please download the PDF or feel free to contact us.

• others

We would like to introduce some applications of the "low-temperature plasma generator" that we handle. It can generate atmospheric pressure nano-plasma, which enables large-area surface modification, 3D surface modification, and carbon fixation (artificial photosynthesis), as well as solution nano-plasma, which allows for the removal of radioactive substances and waste liquid treatment. Please feel free to contact us when you need assistance. 【Atmospheric Pressure Nano-Plasma】 ■ Large-area surface modification ■ 3D surface modification ■ Carbon fixation (artificial photosynthesis), etc. *For more details, please download the PDF or feel free to contact us.

• Plasma Generator

We would like to introduce examples of in-liquid plasma applications for large-scale processing equipment such as wastewater treatment. Traditionally, stable plasma generation has been difficult, but with our technology, we can achieve stable plasma generation even under high-speed water flow by increasing the frequency. By increasing the frequency, the energy of the plasma is enhanced, enabling cost reduction for wastewater treatment and other large-scale processing at approximately 1 ton/hr of water flow. 【Examples of In-Liquid Plasma Applications】 ■ Stable plasma can be generated even under high-speed water flow by increasing the frequency. ■ Increased frequency enhances plasma energy, allowing for cost reduction in large-scale processing equipment such as wastewater treatment. *For more details, please download the PDF or feel free to contact us.

• Plasma Generator

We would like to introduce examples of low-temperature plasma generators aimed at high-density low-temperature plasma applications. They are available in a wide range from compact tabletop models to high-power rack types, and can stably generate large plasma through high-frequency application. They open up a new dimension of low-temperature plasma and are also capable of generating rectangular wave pulses with high dV/dt. 【Product Features】 ■ Wide range from compact tabletop models to high-power rack types ■ Stable generation of large plasma through high-frequency application ■ Capable of generating rectangular wave pulses with high dV/dt *For more details, please download the PDF or feel free to contact us.

• Plasma Generator

We would like to introduce our business vision for the low-temperature plasma application industry aimed at various fields such as healthcare, agriculture, and the environment. The low-temperature plasma (atmospheric pressure and liquid plasma) market is expected to grow rapidly, with projections indicating it will develop into a $6 billion market by 2030. Our company is targeting markets such as surface modification devices, water quality improvement devices, and environmental solutions. 【Target Markets】 ■ Surface modification devices (for glass, plastics, electronic circuit boards, etc.) ■ Water quality improvement devices (water purification systems, toxic substance and radiation removal systems) ■ Environmental solutions (CO2 decomposition, hydrogen generation devices, etc.) *For more details, please download the PDF or feel free to contact us.

• Plasma Generator

Here are examples of insulation testing devices aimed at motorlets and rotating machine stators. Our insulation testing devices can accommodate tests for light loads such as enameled wire, as well as heavy loads like rotating machine stators. They are capable of measuring surge voltage distribution for each slot, and the power supply specifications can be customized according to the application. 【Overview of Examples】 ■ Supports testing for light loads such as enameled wire ■ Supports medium loads such as motorlets ■ Supports heavy loads for rotating machine stators (stator coils) *For more details, please download the PDF or feel free to contact us.

• others

Here are some examples of applications for insulation testing equipment. With the introduction of SiC power devices in inverters, there has been a need for pulse power supplies to test the surge noise, which has become high-speed and high-voltage. Our unique technology has achieved more than an order of magnitude increase in the speed of conventional testing machines, and our technology is the de facto standard for motor winding insulation testing (IEC standards are currently under deliberation), making it difficult for other companies to enter the market. This technology and product are essential in every motor production process. [Case Overview] ■ Market Potential: Although there is a sense of slowdown in the EV market, the EV motor market size is expected to grow from $237.5 billion in 2024 to $739 billion in 2032. ■ Challenges: With the introduction of SiC power devices in inverters, surge noise has become high-speed and high-voltage, and there is currently no insulation testing available for this. ■ Solution: Our unique technology has achieved more than an order of magnitude increase in the speed of conventional testing machines. *For more details, please download the PDF or feel free to contact us.

• others

Here is a case study about our insulation tester. With the acceleration of semiconductor inverters, a phenomenon has arisen where most of the applied voltage concentrates at the beginning of the coil winding inside the motor, becoming a problem. Through our unique technology, we have established a technique to connect SiC semiconductor devices in series and switch high voltages of over 10kV at high speed. 【Case Overview】 ■Challenge - A pulse power supply with a fast rise time is essential. ■Result - Achieved a fast rise and fall waveform of less than 100ns for a ±10kV power supply. *For more details, please download the PDF or feel free to contact us.

• Testing Equipment and Devices

Nexfire Technology Co., Ltd.'s pulse power supply can be used for plasma applications due to its excellent switching capabilities. It enables high-frequency operation up to an industry-leading 400 kHz, allowing for stable high-density plasma generation. Stable plasma can be generated even under high-speed water flow, which can lead to cost reductions in large-scale processing equipment such as wastewater treatment. [Applications] - Water-repellent and hydrophilic surface treatment for films, resin materials, and glass - Low-temperature cleaning through organic matter removal - Carbon dioxide decomposition (artificial photosynthesis) - Nitrogen fixation (increasing agricultural production) *For more details, please download the PDF or feel free to contact us.

• Plasma Generator

We would like to introduce our "Nano Pulse Generator." This power supply utilizes in-house developed high-voltage SiC switches to generate high-speed pulses with a rise time of less than 100 ns. To accommodate various applications, we also accept custom specifications. Please feel free to contact us. 【Features】 ■ Maximum output voltage: ±10kV ■ Maximum repetition frequency: DC to 100kHz ■ Power supply power: 300W to 10kW ■ Input voltage: Single-phase AC 100V or three-phase AC 200V, etc. *For more details, please download the PDF or feel free to contact us.

• power supply

We would like to introduce our "High-Frequency Pulse Power Supply" that we handle. With our unique technology, we offer high-voltage, high-frequency pulse power supplies with a maximum frequency of 500kHz and ±10kV as application products of power devices like SiC. Please feel free to contact us if you have any inquiries. 【Features】 ■ Maximum output voltage: ±10kV ■ Maximum repetition frequency: 100kHz to 500kHz ■ Power supply power: 1.0 kW to 2.5 kW ■ Input voltage: Three-phase AC 200V (50/60Hz) *For more details, please download the PDF or feel free to contact us.

• Plasma Generator

We would like to introduce the "SiC Small High Voltage DC Power Supply" handled by Nexfire Technology Co., Ltd. It uses our original ultra-high voltage SiC SBD. It is compact and lightweight, equipped with a high-speed feedback circuit. Additionally, it can support up to 160kV due to its center-grounding, and it has high X-ray resistance, allowing it to be installed within lead shielding. 【Features】 ■ Compact and lightweight ■ Low power consumption ■ Uses ultra-high voltage SiC SBD (our original) ■ Can be powered by dry batteries ■ High radiation resistance *For more details, please refer to the PDF materials or feel free to contact us.

• power supply
• power supply
• Other power sources

We would like to introduce our "SiC High Voltage Switch Module." Through high-speed control technology and high voltage insulation technology, we have realized a compact and high voltage switch module. By connecting the modules in series or parallel, it is possible to achieve even higher voltages (up to 80kV) and high power switching (custom options available). 【Specifications】 ■ Rated Voltage: <20kVdc ■ Rated Pulse Current: 500A ■ Rated Current: <100Adc ■ Rise Time: 50ns ■ Maximum Continuous Operating Frequency: 1MHz ■ Size: Approximately 150×150×150mm *For more details, please refer to the PDF document or feel free to contact us.

• Other energy equipment
• Switching Power Supply
• power supply