University of Malta

Brushless Motor
UOM Main Page
  * Contact
  * About
  * Academic Staff
  * Support Staff
  * Students
  * Industry
  * Entrepreneurs
  * Investors
  * Events
  * Standard Forms
  * Learn about IP
  * Our Technology
    * Synchronization for HS Video
    * UWB Antenna
    * Brain Controlled Selection
    * Brushless Motor
    * Multi Material Micro Injection Moulding
    * Kaptan
    * Runtime Verification
    * Reconstituted Stone
    * Insulating Block
    * Offshore Wind Energy
    * RibBridge
    * Surgical Suction Device
    * Breast Cancer Detection
    * Co-Crystal Drugs
    * Molecular Probe
    * Medical English Book
    * Cardio Thoracic
    * Auxetics General
    * Auxetic Medical
    * Speech and Language Assessment Tool
  * Funding
  * KTO Staff Resources

Brushless Motor
Project Number: KD01JCI


The Invention 

Our invention relates to an electrical generator, particularly a converter generator which presents a low static torque and is capable of providing high voltage output at low driving speeds. It optimises the use of the magnetic material by using a permutation of connections with the possibility of providing a poly phase motor. The windings and magnets are positioned in way to provide a phase shift thereby resulting in a smoothed DC output after rectification without the need for regulation.


By optimising the use of magnetic material and copper, as well as eliminating the need for regulation, our solution delivers a number of advantages such as exploiting the optimum power out of the magnetic material, reducing overall size of the drive for the same power output and offering a better power to cost ratio. The main cost reduction comes from the reduction in use of rare earth metals.

Ultimately, it reduces cogging, increases efficiency and obtains better power to size ratio. On the other hand, it also addresses the problems with the prior art such as sensitivity of capacitors to temperature, contaminants and corrosive or catalytic materials (e.g. salty, marine environments).


Applications / Industries 

Application areas include a variety of contexts with wide temperature ranges, severe mechanical strains, high levels of ventilation, high levels of dust and chemically aggressive vapours, high humidity and very dry environments, such as in:

  • Renewable energy sources (e.g. wind turbines, hydropower)
  • Remote installations (e.g. off-shore wind farms)
  • Railway applications
  • Textile manufacturing and handling
  • Food manufacturing
  • Wood drying
  • Plastics manufacturing
  • Cooling plants or plants used in polar environments

Development Status 

An advanced working prototype has been developed as shown in image below.

brushless motor 


Intellectual Property Status 

The University of Malta submitted a patent application (application no. 1421787.1) in the United Kingdom.

Commercial Interest

We are looking for potential licencees and collaborators to manufacture and sell our invention.

Lead Originator & Relevant Publications 

Prof. Joseph Cilia

Research in the Department of Industrial Electrical Power Conversion [Link]


Download summary [PDF]

Interested? Contact Andras Havasi or the Knowledge Transfer Office

Industry Placements
Check out
Student with a Business Plan?

‘ERASMUS FOR YOUNG ENTREPRENEURS’ is the programme for you!

Last Updated: 29 September 2016

Log In back to UoM Homepage