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Control Transformer designs high-performance, fully customized magnetic solutions that are tailored to your power, frequency, and environmental needs.

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Control Transformer has more than 70 years of experience delivering reliable, custom-engineered magnetic solutions across numerous industries.

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High-Frequency Magnetics Built to Perform

High-frequency magnetic solutions provide the required efficiency, size, and performance for specialized applications. Control Transformer’s advanced engineering expertise includes the rare capability to produce high-frequency transformers, reactors, inductors and chokes — ensuring you have unmatched reliability and performance in even the most challenging conditions.

Our custom high-frequency magnetic products are engineered with precision, making them ideal for demanding applications like induction heating and high-power systems.

  • Frequency range: 10 kHz – 500 kHz

  • Available across water-cooled transformer, reactor, inductor and choke designs

  • Designed for rugged environments

  • Premium core materials for enhanced performance

  • VPI varnish and epoxy encapsulation options

As with all our products, our high-frequency magnetic products are fully customizable. We build each product to fit our customers' exact needs, including specifications for power, size, industry and more. 

  • Auto and isolation

  • Multi-tapped

  • From 100 Hz. to 50 KHz.

  • Voltages to 5 KV

  • Epoxy-encapsulated

  • VPI process

  • Water-cooled windings

  • Water-cooled cores

  • Swing link tap adjustment

  • Fully customizable to customer specifications

  • Auto and isolation

  • Multi-tapped

  • From 60 Hz. to 30 KHz.

  • Voltages to 5 KV

  • Epoxy-encapsulated

  • VPI process

  • Water-cooled windings

  • Water-cooled cores

  • Fully customizable to customer specifications

  • Auto and isolation

  • Multi-tapped

  • From 10 KHz. to 80 KHz.

  • Voltages to 5 KV

  • Epoxy-encapsulated

  • VPI process

  • Water-cooled windings

  • Water-cooled cores

  • Swing link tap adjustment

  • Ferrite – high-efficiency cores

  • Fully customizable to customer specifications

Built for Project Success

Custom Engineered

Tailored to meet exact specifications, in collaboration with each client

Optimized for Heating

Ideal for induction heating and melting applications

High-Quality Materials

Built to last, even in harsh environments

Reliable Performance

Less than 1% failure rate, 100% test approval before shipping

1-Year Warranty

Coverage for one year from the date of shipment

Made in the USA

Proudly manufactured in our Ohio-based facility

Discover the Latest from Control Transformer

Explore recent news items, updates and expert thought leadership from the Control Transformer team.

High-Frequency Products for Your Complex Industry Needs

We have the expertise and capabilities to meet OEMs’ high-frequency needs across a wide range of industries.

Oil & Gas

Ensure safety and productivity needed for production, refinement and distribution

Aviation

Reliable power for aircraft and ground infrastructure, serving commercial and military markets

Mining

Transformers and reactors to withstand the most rugged underground environments

Induction Heating & Melting

Supply the power and frequency needed for various industrial and domestic heating applications

Renewable / Alternative Energy

Enable conversion, regulation, stability and transfer of power from renewable energy sources

Marine

Reliable transformers for hazardous marine environments, serving commercial and military markets

Electric Vehicles (EV)

Ensure efficiency in power conversion, charging infrastructure and vehicle power systems

Industrial & Manufacturing

Provide efficient power for a wide array of applications, from motors and drives to heavy machinery

Energy Storage

Facilitate the conversion, regulation and management of power in energy storage systems and grids

Control Transformer has consistently remained one of our most reliable suppliers over the years – providing us with a high-quality product, industry-leading engineering expertise and competitive lead times. By using Control Transformer products, we have ensured our projects’ success and maximize customer satisfaction.
Power Factor Correction Industry
Our organization has worked with Control Transformer for at least 50 years. In our challenging high-vibration application, where the quality of the product is paramount, we require the highest possible rating in the smallest possible package size, which requires a high level of customization. Their staff has always been very competent, courteous and professional in helping us to achieve success, promptly addressing our inquiries and concerns and providing us with first-class products that perform well in our application.
Mining Industry
Control Transformer has been a valued strategic partner and supplier to our organization for over 25 years. During this time working with the CTI team, I have worked with all team members, from design engineers to shipping personnel and everything in between. Everyone is engaged and supportive of the custom requirements and quality that our company demands from a strategic partner.
Motor Drives Industry
Control Transformer's long-tenured employees take great pride in service and workmanship, which shows in all aspects of the products they produce. Everyone from the president to production is just a phone call away. Issues, albeit rare, are always handled in a timely manner, and they can be on-site or on a call as we require. Control Transformer is a testament to how all businesses should be managed and operated to service their customer with quality products to meet the timelines of customer production.
Motor Drives Industry

Find Your Custom High-Frequency Magnetics Solution

Tell us about your high-frequency magnetics needs. We’ll give you an estimate of the resources needed to engineer a product to meet your exact specs, complete with a preliminary design.