Transformer Design Software – 40 + Years Experience

RALE Engineering – since 1978

Rent RALE transformer design software to create small, large, and toroidal transformers as well as small chokes & inductors in minutes and save up to 20 % materials.

Complete Design Solution for Transformers & Small Chokes / Inductors

You get four design programs in one package and only need a normal Windows 10 (or higher) computer with internet access. Start designing in minutes, no prototypes required.

Supported Transformer Design Types

  • small transformers,
  • large transformers,
  • toroidal transformers, and
  • small chokes & inductors

Key Benefits of RALE Software

  • save 10–20 % copper / aluminum & core material
  • cut design time dramatically – offer documentation is generated instantly
  • avoid prototypes in 80–90 % of all projects
  • high-level know-how & support from RALE Engineering at no extra cost
  • updates included, 5 UI languages (EN, ES, FR, DE, IT), metric & US units

How the RALE Design Software Works in Practice

Every design is done in four steps:

1. Input

Enter all the required technical specifications of the transformer or choke / inductor in the standard input form. If you are unsure, check the included library, input-files in the Design Examples or contact Rale for technical support.

2. Design

Once the input is completed, the program calculates the transformer or choke / inductor based on the prescribed criterion: temperature rise, regulation, short circuit voltage or efficiency etc.

3. Output

Then you can view the results of the design. You can print them or save them in various formats (e.g. PDF).

4. Test

If wished, you can modify the transformer or choke / inductor manually to enter a different wire size, numbers of turns, steel etc. You can then run a test by using the original operating mode (input voltage, frequency, load etc.) or – if you wish so – also by modifying the operating mode.  

Why Choose RALE? 40 + Years of Expertise

RALE Engineering has been developing transformer design software since 1978. More than 120 satisfied customers worldwide rely on RALE – for good reason.

Free Design Examples & Resources

Gain immediate, valuable know-how: browse our free transformer and inductor DESIGN EXAMPLES to kick-start your own projects.