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Custom Transformer Manufacturing

Custom High-Frequency Transformers

KATOY designs and manufactures custom high-frequency transformers for switching power supplies, converters, inverters and other industrial power-electronic applications. Designs are developed around converter topology, switching frequency, electrical requirements, insulation, thermal conditions, winding construction, dimensions and mounting constraints.

Custom Design Developed around electrical and mechanical project requirements.
Ferrite-Core Structures EE, EFD, ER, PQ and other suitable core geometries.
Prototype Development Engineering review, sample development and validation support.
Recurring Production Production support for recurring industrial OEM requirements.

Designed Around the Actual Power-Conversion Circuit

A high-frequency transformer cannot be selected by power rating alone. Its magnetic and electrical design depends on the switching frequency, converter topology, input and output conditions, core material and geometry, flux density, winding arrangement, insulation requirements and thermal limits.

KATOY develops custom ferrite-core transformers based on the customer’s circuit requirements, drawings or reference samples. The objective is to match the transformer construction to the actual operating conditions rather than force the application into a fixed catalog design.

  • Converter topology: evaluated together with electrical requirements and switching conditions.
  • Operating frequency: considered when selecting magnetic structure and winding design.
  • Insulation: developed according to voltage, isolation and application requirements.
  • Thermal performance: considered together with losses, materials, dimensions and installation conditions.
  • Mechanical construction: customized for PCB mounting, wire leads, pins, dimensions and equipment layout.

EE, EFD, ER and PQ High-Frequency Transformers

Different ferrite-core geometries provide different winding windows, magnetic paths, profiles and mechanical packaging options. Core selection is made according to the actual transformer design rather than by geometry alone.

Custom EE-core high-frequency transformer manufactured by KATOY
EE-Core Transformer

Common ferrite-core geometry suitable for a wide range of customized winding and mounting arrangements.

Custom EFD-core high-frequency transformer manufactured by KATOY
EFD-Core Transformer

Low-profile ferrite-core structure considered where transformer height is an important mechanical constraint.

Custom ER-core high-frequency transformer manufactured by KATOY
ER-Core Transformer

Ferrite-core structure available for customized high-frequency transformer designs and packaging needs.

Custom PQ-core high-frequency transformer manufactured by KATOY
PQ-Core Transformer

Compact ferrite-core geometry used where magnetic, winding and mechanical requirements suit the structure.

Information Used for High-Frequency Transformer Development

Providing complete circuit and operating information allows the transformer design to be evaluated against the actual application instead of relying on approximate catalog substitution.

Electrical Requirements Input and output conditions, power requirements, winding configuration and other available electrical specifications.
Switching Frequency Intended operating frequency and available switching conditions for the target power-conversion circuit.
Converter Topology Circuit topology and operating mode where available for magnetic design evaluation.
Insulation Requirements Isolation, withstand-voltage and application-specific insulation requirements.
Mechanical Constraints Maximum dimensions, mounting method, PCB layout, pins, connectors or wire-lead requirements.
Application Information Equipment type, operating environment, reference drawing, sample or other relevant system information.

High-Frequency Transformers for Power Electronics

Custom high-frequency transformers can be developed for different switching power-conversion applications according to the circuit, electrical specifications and mechanical requirements.

Switching Power Supplies Custom high-frequency transformers for SMPS and industrial switching power-conversion circuits.
Inverters Ferrite-core transformer designs for inverter and power-conversion applications.
Battery Chargers Custom magnetic designs for switching charger and power conversion systems.
Welding Equipment High-frequency transformer solutions for welding and cutting power electronics.
Industrial Power Electronics Customized transformers for specialized industrial electronic and power-conversion equipment.

From Technical Review to Recurring Production

As a custom high-frequency transformer manufacturer, KATOY supports industrial OEM projects from requirement review and magnetic design through prototype development, validation and recurring production.

Technical requirement review
Magnetic and winding design
Core and material selection
Prototype development
Sample validation
Production process definition
Electrical inspection
Recurring manufacturing support

Verification Based on Product Requirements

High-frequency transformer verification should correspond to the electrical and insulation requirements of the design. KATOY performs production and electrical inspection according to defined product specifications and quality procedures.

Test requirements are established according to the actual transformer design and customer specification rather than applying one identical test profile to every product.

  • Electrical parameter inspection
  • Winding and connection verification
  • Insulation-related testing as specified
  • Visual and dimensional inspection
  • Production process and quality control

High-Frequency Transformer Questions

These answers address common technical and sourcing questions about custom high-frequency transformer development.

What information is needed to design a custom high-frequency transformer?

Useful information includes the converter topology, switching frequency, input and output requirements, power conditions, winding configuration, insulation requirements, dimensional limits, mounting method and application information. A schematic, drawing or reference sample can also support technical evaluation.

How is the ferrite core selected for a high-frequency transformer?

Core selection depends on factors including operating frequency, transformer topology, power requirements, magnetic flux conditions, winding space, thermal limits and mechanical constraints. EE, EFD, ER and PQ are examples of available core geometries, but the suitable structure depends on the complete design.

Can KATOY manufacture high-frequency transformers from customer drawings or samples?

Yes. Projects can be evaluated from electrical specifications, drawings, circuit information or reference samples. Additional technical information may be required before prototype development depending on the application.

Are high-frequency transformers available for SMPS and inverter applications?

KATOY develops custom high-frequency transformers for switching power supplies, inverters and other industrial power-conversion applications. The transformer must be designed around the specific circuit and operating conditions rather than selected only by application name.

Can prototype development be followed by recurring production?

KATOY supports projects from technical review and prototype development through validation and recurring manufacturing. Production requirements are established after the design and sample are confirmed.

Need a Custom High-Frequency Transformer?

Send your circuit information, electrical specifications, drawings, dimensions or reference samples for technical evaluation and quotation.

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