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Technology

LCC-based Induction Cooktop Architecture for Non-Ferromagnetic Pan

Invention Reference Number

202405690
Kitchen utensil on two tone background, top view. Image from Envato

This innovation enables efficient and clean induction heating for cookware made of nonferromagnetic materials – traditionally incompatible with standard induction systems. The approach addresses a growing need in both industrial and domestic applications for safer and more energy-efficient heating solutions that work across a broader range of materials. 

Description

Conventional induction heating systems rely on magnetic properties of cookware, limiting their compatibility to ferromagnetic materials. This technology offers an optimized power converter design that accommodates non-ferromagnetic cookware, which typically requires higher coil current due to lower magnetic permeability and smaller skin depth. The system utilizes a resonant circuit topology that ensure impedance matching at unity power factor while minimizing the power drawn from the mains. The result is an energy-efficient method for extending induction heating capabilities to a wider variety of cookware materials, without significantly increasing system complexity or power demands. 

Benefits

  • Expands induction heating to non-ferromagnetic cookware
  • Increases system efficiency with optimized power conversion
  • Enhances safety and cleanliness compared to resistive heating 

Applications and Industries 

  • Consumer and commercial kitchen appliances
  • Industrial process heating solutions
  • Smart cooking and energy-efficient home technologies 

Contact

To learn more about this technology, email partnerships@ornl.gov or call 865-574-1051.