Hybrid controller and hybrid control method for a resonant converter

  • Unitat from Fundació URV
  • From Spain
  • Responsive
  • Patents for licensing

Summary of the technology

A power converter is an electrical device capable of altering the characteristics of the voltage and current it receives.

One of the main areas of expertise of the research Group of Industrial Electronics and Automatic Control (GAEI) of Universitat Rovira i Virgili is the intersection of the field of power converters with those of applied control, renewable energies, power conditioning, power quality, and design of power conversion devices.

Dr. Carlos Olalla and his team have developed a new, smart hybrid controller for high power resonant converters, which play a key role in the electrification of critical applications, such as heating and transportation. These novel hybrid controllers employ the inherent oscillation of the resonant tank to activate the switches of the power converter in a smart, efficient way. Resonant converters enhanced with hybrid controllers will outperform nowadays devices in terms of power transfer efficiency, power density and regulation performance.

Fundació URV

Details of the Technology Offer

The technology currently applies to resonant dc-to-high-frequency-ac or dc-dc conversion stages with full bridge inverters and conventional rectification.

The new hybrid controller implements frequency and amplitude modulation of the resonant tank at the same time, maintaining soft-switching, with no need of external oscillators.

As a result, switching frequency can be maintained near the optimal resonant frequency for all set points. Core and winding loss of the magnetic devices is minimized. The design of the magnetic elements can be optimized. Efficiency is improved.

Current development status

Laboratory prototypes


The target market is aimed at electric vehicle-related battery charging. The power level of automotive battery chargers and the requirements of simplicity of the control approach, high efficiency and power isolation and are good matches to the characteristics of the technology. One direct field of application of this technology is on existing on-board battery chargers previously regulated with conventional set-point dependent PI controllers. The technology is readily applicable to these devices.

Desired business relationship

Patent licensing

Intellectual property status

  • Patent already applied for
  • Patent application number :PCT/EP2022/088081

Related Keywords

  • resonant converter
  • regulation
  • zero-voltage switching
  • frequency modulation
  • amplitude modulation

About Fundació URV

The Technology Transfer and Innovation Center (CTTi) meets from the University environment the technological needs and services generated by the productive sectors and administration, through the management of Transfer of Technology and Knowledge, the Intellectual and Intellectual Property management, Technology Watch, Entrepreneurship, and Technology Infrastructures Offer (business incubator).

Unitat de Valorització de la URV

Never miss an update from Unitat de Valorització de la URV

Create your free account to connect with Unitat de Valorització de la URV and thousands of other innovative organizations and professionals worldwide


Send a request for information
to Unitat

About Technology Offers

Technology Offers on Innoget are directly posted
and managed by its members as well as evaluation of requests for information. Innoget is the trusted open innovation and science network aimed at directly connect industry needs with professionals online.


Need help requesting additional information or have questions regarding this Technology Offer?
Contact Innoget support