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This section provides an overview for high voltage power supply units as well as their applications and principles. Also, please take a look at the list of 32 high voltage power supply unit manufacturers and their company rankings. Here are the top-ranked high voltage power supply unit companies as of May, 2025: 1.Voltage Multipliers, Inc., 2.CRANE CO, 3.Marway Power Systems, Inc..
Table of Contents
A high-voltage power supply unit is a power supply unit that handles particularly high voltages.
High voltage generally refers to voltages ranging from several thousand volts (V = volts: a unit of voltage) to several tens of thousands of V or higher. The voltage transmitted by power companies is 6.6 kV or higher, but high voltage is generally defined as 600 V AC (750 V DC) or higher.
The electrical appliances we use in our daily lives have low voltages of 100 VAC or 200 VAC. This is due to the fact that the standard power supply voltage transmitted from the power company's generation facilities to each household is either 100 VAC or 200 VAC.
Although typical power supply units are 100 VAC or 200 VAC, some equipment may want to generate higher voltages depending on the conditions of use. Specifically, these are devices that require higher voltages than the power supply voltage or devices to be tested for tolerance to high voltages. In order to clear this requirement, a transducer that generates higher voltage than the power supply voltage used by general users is needed. High-voltage power supply units are used in such cases.
High-voltage power supply units are mainly used for operating products that require high voltages and to withstand voltage testing.
Examples of equipment that require high voltage include equipment used for painting automobile bodies and construction materials, equipment used for surface treatment of metals and plastics, X-ray radiation equipment used for radiation therapy and x-rays, and electron microscopes.
Pressure resistance testing is performed on industrial electrical equipment such as electric wires. Products are often tested to withstand voltages of 1500 V for 1 minute or 1800 V for 1 second before shipment, and that insulation withstand voltages be tested. Therefore, the introduction of high-voltage power supply units is mandatory. They are also used for practical training to acquire qualifications as high voltage and special high voltage electricity handlers.
High-voltage power supply units are converters that input general AC power transmitted to the end of the line and output it as high-voltage. A converter is a device (unit) that converts the AC power supply voltage transmitted from the power company into DC voltage using a circuit with diodes called a rectifier and smoothes the voltage with an electrolytic capacitor.
However, simply using a converter unit will only output a DC voltage that is smoothed at a low voltage because it is 100V or 200V, and will not provide the high voltage of 10 times or 100 times or more the voltage originally desired. It is possible to boost the voltage simply by the turn ratio of the step-up transformer, but the turn ratio has a practical limit.
To obtain a high voltage, a Cockcroft-Walton circuit combining a diode and a capacitor is used. This method uses the storage capacity of the capacitor and the rectifying action of the diode. After the capacitor stores electricity in response to an AC input in one direction, the voltage is boosted when a current flows in the opposite direction.
This circuit method is commonly used to raise the voltage by layering the rectifier-based circuit described earlier and is also referred to as a doubling voltage circuit or a high-voltage generator circuit among technical personnel. Since the voltage increase is an even multiplication, it is not possible to boost the voltage by an odd number of times. High voltages of 1 kV or higher can be obtained by combining an appropriate high voltage diode and ceramic capacitor.
High-voltage power supply modules are high-voltage compatible power supply units capable of supplying high voltages that generally generate 1 kV or more.
Among these, power supply unit manufacturers with an established reputation for their technological expertise in downsizing through higher efficiency while ensuring low noise and reliability have achieved low prices by improving the quantity and ease of use of their products, and have modularized their high-voltage output power supply modules as general-purpose products.
Major manufacturers and products of high-voltage power supply modules include the OHV series by Bellnix, the TCR series by American High Voltage; the HGP series by Matsusada Precision, HitekPower by General Products; the TMK series by Takasago Machinery Works, the C14051 series by Hamamatsu Photonics, etc. The more the output current increases in addition to the original high voltage, the larger the size of the module becomes. Therefore, it is necessary to select a module with attention to its margin, temperature rise, and dielectric strength depending on the actual use of the load.
The substrate of a high-voltage power supply is a high-voltage circuit, so there are some precautions that must be taken for the substrate used in the high-voltage circuit. This is because the higher the voltage, the more the standard requires that the insulation distance of the board be sufficiently secured. The higher the voltage is, the greater the possibility of serious electric shock during work. To ensure safety, safety measures against withstand voltage and electric shock must be taken, including the creepage distance and insulation distance of the circuit board and the installation of safety grounding.
In practice, the IEC standard absolutely requires a board pattern design that ensures insulation distances between conductive copper foil patterns on the board based on each country's standards. Failure to comply with this requirement may result in fines or other penalties as a violation of the law, and not only penalties, but also a loss of social credibility. Therefore, both the manufacturer and the user must be very careful to ensure that the insulation distance of the board pattern meets the standard.
*Including some distributors, etc.
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Crane Co. is a diversified manufacturer of engineered industrial products that was established in 1855 and is headquartered in Chicago, Illinois, USA. The company produces a wide range of products, including sensing components and systems, landing systems, fluid management, electrical power solutions and microwave solutions. Its products, such as Crane Fluid Systems, Crane Control Systems, and Crane Valves, are used by a number of industries, as diverse as oil and gas, aerospace, and power generation industries. The company provides aftermarket services, including AOG (aircraft on ground), Repair Capabilities, RFQ, component maintenance, and modernizations and, upgrades.
Marway Power Systems, Inc, setup in 1979 at California, USA is a manufacturer of auto transfer switches and power distribution solutions for critical electrical purposes. The company with unique approach towards power supply products, specializes in manufacturing power supplies equipment in rack-mount form or customized power enclosures. Their crucial product offerings are DC power supplies, equipment for DC/AC power supply, rack power integration, EPO panels and auto transfer switches for optimum power disposal. These power supply equipment find uses in defense, aerospace, EGSE purposes, industrial applications and factory infrastructure OEM for their ruggedness, efficacy, lesser noise and operator convenience.
Excelitas Technologies Corp., headquartered in Waltham, USA, is a manufacturer of photonic solutions. The company provides photonic solutions for the illumination, optical and imaging needs of the OEM and end-user customers. The products like cameras, sensors and light sources serve an array of applications across many sectors. These range of applications include clinical diagnostics, autonomous vehicles and X-ray security screening. The company also offers bespoke photonic solutions such as discrete components, sub-assemblies, or complete turnkey solutions tailored to the customers' specific requirements.
Acopian, founded in 1964 in Easton, Pennsylvania, USA, is a manufacturer and supplier of quality power conversion products. The company specializes in offering a wide range of power supplies, including AC-DC power supplies, DC-DC converters, and custom power solutions. These products play a vital role in providing efficient power to various electronic systems and applications. Acopian's power solutions are utilized across industries such as aerospace, medical, and telecommunications. Emphasizing precision and performance, Acopian continues to be an ideal partner in delivering stable and dependable power solutions for critical applications.
B&K Precision Corporation, established in 1951 and headquartered in Yorba Linda, California, stands as a manufacturer and supplier of test and measurement instruments. Its offerings span various industries and applications, including power supplies and DC electronic loads for power testing, signal generators for signal creation, component testers for evaluating electronic components, oscilloscopes for signal waveform analysis, and spectrum analyzers for frequency spectrum measurement. These solutions provide more options for electronic system design and development across education, research, engineering, production, and maintenance sectors. The company holds ISO 9001:2015 certification for its quality management.
Spellman High Voltage Electronics Corporation, founded in 1947, is an independent supplier of X-Ray generators, precision DC high voltage power supplies, and Monoblock X-Ray sources for industrial, medical and scientific use. With five design centers, six production centers and eight repair locations across North America, Europe and Asia, the company's area of specialization is working in tandem with original equipment manufacturers to design, produce, and provide support for the most suitable possible solution for each system and market area.
Advanced Energy Industries, Inc., founded in 1981 and based in Denver, Colorado, is a manufacturer, distributor, and supplier of precision power conversion, measurement, and control solutions. Its products, include AC-DC power supply units, DC-DC conversion products, and high voltage amplifiers, which are used in mission-critical applications across various industries such as healthcare, telecommunications, and industrial equipment. The company offers on-site support, capable of securing and mounting products, managing electrical connections, and conducting tests as per specifications.
Gamma High Voltage Research, founded in Ormond Beach, FL, in 1981 is a manufacturer of high voltage power supplies and instrumentation The company's product portfolio includes Xray units, High Voltage AC Power Supplies, Programmable High Voltage Supplies and Customized Solutions. Their products find applications in a wide range of industries, including but not limited to Scientific Research and Laboratories, Semiconductor Manufacturing, Medical Equipment and Imaging, Aerospace and Defense and Telecommunications and Electronics Testing.
Axiom Test Equipment (ATE) is an American ISO 17025 certified distributor of electronic test and measurement equipment established in 2005 and based in Vista, California. The company offers various types of test equipment including oscilloscopes, spectrum analyzers, and signal generators, as well as equipment for measuring environmental factors like humidity. ATE also offers additional repair, calibration, and buyback services to its clients including Lockheed Martin, the Ford Motor Company, and Medtronic.
Matsusada Precision Inc is located in Shiga, Japan, and was established in 1978, known as the developer, manufacturer, and global supplier of power supply products and imaging products. The power supply products include high voltage amplifiers, AC, DC, and regenerative DC power supplies as well as optical sensors, which have their use in research centers, aerospace, analytical instruments, electronics, and almost all industries that use power to operate. The imaging products are associated with businesses that use X-ray inspection as a service such as life sciences and electronics Environmental improvement equipment is also supplied, but only in Japan.
Ningbo Danko Vacuum Technology Co. Ltd is a Chinese developer and manufacturer of physical vapor deposition (PVD) vacuum coating systems that was established in Ningbo City, Zhejiang, in 2007. The company’s product lineup includes tribological coating machines for applying wear-resistant coatings, PVD evaporation metallization coating machines, and decorative coating machines for replacing electroplated chrome with PVD film. The company operates to ISO 9001 quality management standards, and chiefly serves clients in China’s automotive, optoelectronic, and hardware industries.
EREMU, SA, founded in 1958 and located in Astigarraga, Guipuzcoa, is a manufacturer and repairer of electrical transformers and other electrical equipment. The company offers a range of products, including low-voltage transformers, automatic voltage regulators, cast resin transformers, three-phase autotransformers, and light flow regulators. These transformers have applications in laboratory power supply, aeronautics and defense, renewable energy, telecommunications, and solutions to electrical network issues. It complies with international manufacturing and testing standards, such as IEC, UNE, NEMA, and UL.
Anshan Leadsun Electronics Co., Ltd. is an ISO 9001:2015 certified manufacturer of high-voltage electronic components, founded in 2001 and located in Anshan, Liaoning, China. They manufacture high-voltage diodes, rectifier blocks, bridge rectifiers, multipliers, and also power supplies. Their products are used to enable the transmission of high-voltage electrical signals and power between electronic devices, components, and systems, which are used in many applications such as lasers, X-rays, scientific research, industrial use, and safety inspection.
Kyosan Electric Mfg. Co., Ltd., established in 1917, is a manufacturer of railway signals and traffic control systems based in Yokohama, Japan. It has three product categories, namely railway signals, traffic control systems, and safeguards. Its railway signals are automatic train control and signal security devices. Its traffic control systems are traffic sensors and signal units. It also manufactures safeguards for passenger transfer areas, like falling detection devices. The company is the parent company of Kyosan Group and acquired ISO 9001:2015 and ISO 14001:2015 certifications. Its manufactured products are utilized for the transportation sector across Japan, Taiwan, and Beijing.
TDK-Lambda serves the communications, medical, factory automation, semiconductor, transportation, LED display, and energy industries with a variety of power-related products. Among these products are onboard power supplies, PC board power supplies, noise filters, linear power supplies, unit and configurable power supplies, programmables power supplies, power modules, and bidirectional DC-DC converters.
Hamamatsu Photonics K.K., established in 1953 and headquartered in Hamamatsu, Japan, is a manufacturer of sensors and emitters for both visible and invisible light. It stocks products like LEDs, lamps, and photodiodes used in several industries, including consumer electronics, dental imaging, and environmental monitoring. The sensor and light source components are also available as modules and units that can be incorporated into systems the company develops, like optical measurement systems or imaging systems. The ISO 9001-certified company stocks over 15,000 devices, units, and systems that ship to over 100 destinations worldwide, and it has ten research and production bases.
Heinzinger electronic GmbH, founded in 1959 at Rosenheim, Germany is a manufacturer of robust power supplies and accessories. The company specializes in high-voltage power supplies and systems that require stability and precision round the clock. Their products catalog comprise programmable DC power supplies, AC power sources, electronic loads, and customized power systems to fulfil specific needs. Their magnetic power supply offers stable and high-precision DC voltage to electronic equipment for uninterrupted flow of electricity. They also offer power systems for EV & HEV test applications in automotive. These systems are used in semiconductor, medical technology, alternative energies, research and environmental engineering.
General High Voltage Ind. Ltd, founded in Shropshire, the UK, in 1991 is a manufacturer of high voltage power supplies. The company's product portfolio includes Electron beam welding machines, Industrial X-ray PSUs, Capacitor charging PSUs, Laser PSUs, and Electrostatic precipitators. The company serves industries such as Oil and Gas, Aerospace and Defense, Automotive and Transportation, Construction, and Power Generation. They also provide equipment repair, instrumentation system upgrades, and retrofits, and preventive maintenance.
Brandner Handels, founded in 1970 and headquartered at Nagold, Germany is a manufacturer of electric converters and power supply components. The company specializes in making enhanced power supplies, encapsulated small main power supplies, high-voltage converters and encapsulated switching regulators. Their products range from Dc-Dc converter, high voltage converters to converters for chassis monting and solar applications. These converters regulate and shape the electrical signals and ensure smooth flow of electricity. They are used in radio & telecommunication, computers, rolling stocks, aviation and power plants as well.
Bellnix Co. LTD is a top power supply manufacturer established in 1978 in Japan that deals in several power sources such as DC-DC converters, AC-DC switching power supplies, and high-end power sources that convert low voltage to high voltage. As a company that safeguards security, Bellnix delights in producing top-class power sources used in precision electronic equipment and the aerospace industry. In medical equipment, Bellnix offers power supplies featuring low noise that is recommended in products such as ultrasonic diagnostic equipment where noise can affect results.
Murata Manufacturing Co., Ltd. (Murata Manufacturing) was founded in 1944 and is headquartered in Nagaokakyo, Japan. Murata Manufacturing designs, manufactures, and sells ceramic-based passive electronic components and solutions globally. The company operates through components, modules, and others segments, serving communications, mobility, industrial, healthcare, and personal electronics customers. They company's product offerings include noise suppression products, quartz devices,RFID devices, phase shifters, and wireless connectivity platforms. Services such as webinars and video library are also available for existing and potential customers alike.
Artesyn Embedded Power, founded in Tempe, AZ, is a manufacturer of precision power conversion, measurement, and control solutions for mission-critical applications and processes. The company's product portfolio includes High Voltage Products, Low Voltage Power Supplies, Remote Plasma Sources, Temperature Measurement Products and SCR Power Controllers. The company serves industries such as Oil and Gas, Aerospace and Defense, Automotive and Transportation, Construction, and Power Generation. The company provides services such as Product Selection Guidance, Engineering Support, and Custom Manufacturing.
R.C.V. srl, established in 1964 and based in Altavilla Vicentina, Veneto, Italy, is a manufacturer of switch mode power supplies and rectifiers for the plating industry. The company offers modular power supplies equipped with regulators to convert electrical power efficiently, plating rectifiers that regulate current flow during electroplating processes, and three-phase power supplies for 400V for precious metal plating. The company operates internationally, with partner distributors in the European Union and Asia.
Chroma was established in 1984 and is headquartered in Taoyuan City, Taiwan. The company is a manufacturer and supplier of test and measurement instrumentation. Their product range includes power electronics test solutions, electrical safety test solutions, video & color test solutions, FPD (Flat Panel Display) test solutions, and automated optical inspection (AOI) solutions. These solutions cater to diverse industries and are utilized to test the performance, safety, and quality of various electronic devices and components. The company has branch offices in Europe, the United States, Japan, Korea, as well as in China and Southeast Asia.
Voltage Multipliers (VMI), Inc., established in 1980 with headquarters in the USA, is a manufacturer of high-voltage semiconductor products. The company's product line includes high-voltage diodes, multipliers, rectifiers, optocouplers, and power supplies. Voltage Multipliers Inc.'s capabilities include in-house testing of diodes, rectifiers, multipliers, bridges, and power supplies. The company's products include X-ray power supplies, laser technology, oscilloscopes, military aircraft, and radar jamming equipment, among many others. Voltage Multipliers Inc. also provides custom product design and production.
hivolt.de GmbH & Co. KG (Hivolt) is a distributor and supplier of high voltage (HV) components and power supplies founded in 2000 and based in Hamburg, Germany. The company offers various HV modular and power supplies for building systems with a range of output parameters, HV amplifiers for capacitive loads or piezo actuators, and HV accessories like resistors, cables and connectors. These supply client manufacturers in the materials science, pharmaceuticals, and automation sectors. Hivolt also offers custom product design, development, assembly and integration services via their inhouse engineering capabilities.
HVM Technology, Inc, established in 2004 at Texas, USA is a manufacturer of high-voltage miniature equipment such as DC power converters and amplifiers. The company specializing in advanced power electronics offers unique power solutions whilst maintaining safety and performance. Their product offerings are Unipoar DC-DC converters, Zero Crossing converters, HV components, modules and power distributors. These miniature power equipment are used in medical, defense, aerospace, industrial and scientific fields. They allow customization of miniature power supply equipment based on the needs for stable power flow in high voltage microelectronics.
Today, DSC-Electronics Germany supplies customers all over the world and offers the largest selection of models on the market, with over 255 customisable low and high-power power supplies (100W to 1MW) and ten product series. In mid-2018, the company moved into a new production facility in the centre of Bonn, further expanding its assembly and service capacities. Production to order makes it possible to implement almost any customer request quickly and effectively, which sets the company apart from other Europe-based competitors.
Electro Optical Components Inc., founded in 1997 and based in Santa Rosa, California, is a distributor of special electronic components such as infrared detectors, electronic amplifiers, and gas sensors. It represents European companies in North America, some of which include IMM Photonics GmbH, LBP Optics, and LED Microsensor NT. The company has a turnover of between $2,000,000 and $5,000,000 and supports several charities around Sonoma County, including Windsor Rotary, The Living Room, and Salvation Army. It has also awarded over 100 scholarships to bright students from Sonoma State University and Santa Rosa Junior College.
XP Power Limited designs and manufactures power supply solutions in Europe, North America, and Asia. The company offers AC-DC power supplies, DC-DC converters, high voltage DC-DC converters, high voltage AC-DC power supplies, RF power systems, EMI filters, custom power supplies, and 3 phase power sources. It also offers engineering services. The company serves healthcare, industrial technology, and semiconductor equipment manufacturing industries. XP Power Limited was founded in 1988 and is based in Singapore.
Ranking as of May 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Voltage Multipliers, Inc. |
5.6%
|
| 2 | CRANE CO |
5.4%
|
| 3 | Marway Power Systems, Inc. |
5.3%
|
| 4 | General High Voltage Ind. Ltd |
4.8%
|
| 5 | American High Voltage |
4.6%
|
| 6 | Excelitas Technologies Corp. |
4.5%
|
| 7 | Gamma High Voltage Research, Inc. |
4.4%
|
| 8 | TDK-Lambda Corporation |
3.8%
|
| 9 | Heinzinger electronic GmbH |
3.7%
|
| 10 | Acopian Technical Company |
3.6%
|
Derivation Method
The ranking is calculated based on the click share within the high voltage power supply unit page as of May 2025. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
10 | 40.0% |
|
Japan
|
6 | 24.0% |
|
Germany
|
4 | 16.0% |
|
China
|
2 | 8.0% |
|
Spain
|
1 | 4.0% |
|
United Kingdom
|
1 | 4.0% |
|
Turkey
|
1 | 4.0% |
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