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  • Bellnix Co.,Ltd.

    We manufacture industrial power supplies for a wide range of fields, including nuclear power and medical care.
    Main Image
    Our company excels in manufacturing high-voltage power supplies meeting customer specifications. Our products have been widely adopted for industrial equipment in various critical fields, such as medical, communications, aircraft-mounted, rolling stock-mounted, and elementary particle research equipment. We are also actively promoting overseas expansion with many sales agencies in major countries in Europe, America, Asia, and Oceania.

    Product and technology information

    • BSV series: approved by global FPGA manufacturers

      BSV series: approved by global FPGA manufacturers

      [Product description] Our POL converters (non-isolated DC-DC converters) are among our company’s particularly appreciated products. They are used for such LSIs as FPGAs and ASICs to produce low voltages and large currents. In 2004, two global FPGA manufacturers adopted our BSV series POL converters as recommended power supplies. This great appreciation is partly due to their responsiveness in rapid voltage stabilization when there is an abrupt load change in an FPGA, which has a constantly changing consumption current. Other reasons include their high conversion efficiency with synchronous rectification and high output accuracy. The most advanced FPGAs are used for cellphone base transceiver stations, measuring instruments, high-speed cameras, endoscopes, and other equipment. These require high-level computational processing, and BSV series power supplies are used to drive them. The BSV-nano is the next generation in the BSV series, and it has further boosted our reputation. BSV-nano POL converters maintain the response speed and efficiency of the BSV series with a greatly reduced area ratio. It is about one-half to one-quarter (11 × 11 × 3.2 mm) that of the BSV series. BSV-nano was awarded the grand prix in the power supply section of the EDN 2010 Innovation Award for its great power of conception and technology. This award was presented in 2011. It is sponsored by the U.S. electronics information magazine EDN, and it is one of the most authoritative awards in the electronic equipment industry. We were the first Japanese manufacturer from any sector to win the grand prix.

    • BDP series large-current digital POL converters

      BDP series large-current digital POL converters

      [Product description] Our BDP series digital POL converters are new products developed exclusively for cutting-edge ASSPs. Recent ASSPs have extremely large current consumption. This is because communications networks require faster processing according to the increase in communication using smartphones and other terminals and the transmission and reception of large amounts of data. In many cases, the most advanced ASSPs demand POL converters to vary output voltages during operation. The BDP series was successfully commercialized to meet this demand, using large-current (maximum 150 A) and digital technologies. Our company aims to be a leader in the digital control field by using our accumulated power supply design technological know-how and by maintaining our attitude of tackling difficulties.

    • High-voltage power supplies for new added value

      High-voltage power supplies for new added value

      [Product description] Our company’s high-voltage power supplies have an extensive sales record throughout the world. This is because of their new added value as well as their reliability and size advantages. Large power supply noise lowers the detection performance of the photomultiplier tubes used for blood analysis and other medical purposes and for quality management (image recognition) in semiconductor manufacturing equipment. Our OHV series provides low-noise 5 mVpp to these markets as added value. This is why many products in this series have been adopted. Scanning electron microscopes (SEMs) require a high-voltage power supply with high stability when irradiating an electron beam to an object and enlarging an image. We released our NHV series as very attractive products with added value including ±50 ppm/°C temperature drift and ±10 ppm/1 min time-course drift.

    • Successful development of non-contact power feed technology featuring high efficiency up to 94%

      Successful development of non-contact power feed technology featuring high efficiency up to 94%

      [Product description] The market scale of non-contact power feed systems is predicted to increase from US$ 216 million in 2013 to US$ 8.5 billion in 2018. The market growth in four years is estimated to be nearly 40-fold. Our company has established unique non-contact power feed technology using the power supply technologies and the wealth of experience and great achievements accumulated since our foundation. Our patented displacement-resistant non-contact power feed structure (U-shaped structure) and non-contact power feed unit with high efficiency up to 94% indicate our status as a pioneer in power supply manufacturing. In March 2013, we marketed the Lucina electric assist bicycle under the Bellsports brand. Our non-contact power feed technology is applied in charging its battery. The bicycle is charged automatically when secured at a station. This eliminates troublesome battery charging and remarkably improves convenience.

    • Custom-made power supplies meeting various requirements

      Custom-made power supplies meeting various requirements

      [Product description] We have developed a great many custom-made power supplies, and we are capable of designing optimal power supplies for various purposes and use environments. This is based on the circuit technologies we have accumulated to meet various needs. We continue to implement new circuits such as high-efficiency, low-noise LLC circuits, active-clamp circuits, and phase-shifted full-bridge circuits. At the same time, we provide a wide range of solutions by combining digital control and remote monitoring technologies. Our recent DC power-feed and dual power supplies are mounted on green BTS (base transceiver station) systems from a major communications equipment manufacturer. This is to cut power peaks and maintain the supply of power even in an outage during a disaster.

    Company Profile

    Corporate name

    Bellnix Co.,Ltd.

    Web address


    20,000,000 (JPY)

    Number of Employees


    Established date


    Head office: Country


    Head office: Address

    5-7-8, Negishi, Minami-ku, Saitama city, Saitama, 336-0024




    Syotaro Suzuki   President

    Main phone number


    Representative FAX number


    Others (Comments)

    [Company strength]
    We are a technology-oriented company that is always developing and commercializing cutting-edge technologies ahead of other companies.
    We have a particular advantage in industrial power supplies.
    We can meet customer needs with abundant applications in the fields of nuclear power, medical care, aircraft, and so on. 
    We have clients in a wide range of fields, so our company performance is not greatly affected by business showings in specific business categories or product fields. You can feel comfortable about doing business with us.
    [Business description]
    Our company has a front-to-back production system from design to manufacturing for various power supplies and devices. We manufacture custom-made power supplies, high-voltage power supplies, POL converters, FPGA power supplies, converters insulating digital circuits, and so on.
    We are a development-oriented company developing new power supply devices based on customer requests. We meet needs in a wide range of fields, other than automobiles and home electronics appliances.
    We are also actively promoting overseas expansion with many sales agencies in major countries in Europe, America, Asia, and Oceania.
    Electronic parts
    [Strength of products/technologies]
    <Standard products>
    Our quick-response DC-DC converters are very suitable for stably running FPGAs and other advanced semiconductor devices. We have unrivaled technology for this type of DC-DC converter, which is one of our main products.
    Our mainline products are recommended by global semiconductor manufacturers (ALTERA and Xilinx).
    <Custom-made products>
    We excel in manufacturing high-voltage, custom-made power supplies according to customer specifications. Our products have been widely adopted for industrial equipment in various critical fields, such as medical, communications, aircraft-mounted, rolling stock-mounted, and elementary particle research equipment. We can meet any customer requests thanks to our achievements and rich experience.
    [Representative's message]
    Our company philosophy is “Dreams, creation, and love.”
    We are a group of young engineers who are always pioneering new fields. Our company is a good partner for customers taking on the challenge of utilizing cutting-edge power supply technology with infinite potential applications.
    We have developed an electric assist bicycle in our current pursuit of the potential of small mobility technology.
    We will contribute to the world with our unique technologies by further promoting our overseas expansion.
    [Company structure for market development/overseas expansion]
    We have a system for unified information management and quick decision-making with our managing director as the person responsible.
    We make it a rule to answer inquiries on the same day for good communications with clients.
    We also have several English-speaking staff to perfectly handle negotiations with overseas companies.
    [Market share/Ranking]
    We have a large market share for many products. For example, our domestic market share for POL converters is about 60%, and for ATC/ATS and ultrasonic diagnosis devices it is in the tens of percent.
    [Awards and media coverage]
    Innovations Eye Award 2012, Special Jury Prize; JNP Nippon Grand Award for New Business Creation 2012, Special Prize; U.S. EDN 2010 Innovation Award, Grand Prix; Invention Grand Award 2011, Invention Encouragement Prize; 300 Monozukuri Craftsmanship Companies 2008; Eiichi Shibusawa Venture Dream Award 2008, Special Prize; and so on.
    Xcell Journal 2013; TV Tokyo, WBS (September 25, 2012, etc.; electric assist bicycle); Nihon Keizai Shimbun, “Saitama no Chikara” (2007), U.S. EDN magazine (2006); and so on.
    Saitama City Certified Technical Brand Company 2008; Medical Equipment (ME) Standards.
    [Joint research and development]
    Many contributions to electronics journals and lectures at technical seminars. Presentations at IEICE conferences, and so on.
    [Main Clients / Business History (domestic)]
    We have transactions with the foremost leading companies in various fields.
    [Main Clients / Business History (overseas)]
    Transactions with (and products adopted by) major aircraft manufacturers.
    [Exhibition History/Information]
    Power System Japan 2013; TECHNO-FRONTIER 2013; MEDTEC JAPAN 2013; INTERNEPCON 2012; U.S. MD&M WEST 2012; China Expo 2013; and Power System Japan 2014 (planned).

    This company is recommended by a support organization

    Kanto Head Office

    Company profile in Japanese

    Company profile in Japanese

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