Isolated Self-Powered Gate Drive with laser and PV cell

Researchers at Purdue University have developed a laser-powered gate drive system in which gate control is achieved by modulating laser power levels rather than the traditional way of turning the laser ON/OFF. This technology address common mode transient immunity (CMTI) and conducted electromagnetic interference (EMI) associated with electrical switching systems. Additionally, it provides fast switching and very low deadtime using a single laser, making this technology highly applicable in the electric vehicle and MV and HV power electronics industries.

Technology Validation:

Simulation completed. Experimental validation through prototype is ongoing

Advantages:

-Continuous laser operation

-Efficient power transfer

-Reduced energy loss

-Switching noise immunity

-Integrated power and gate signal transfer

Applications:

-Electric vehicle industry

-High power motor drives

-Electric aviation

-Power grid with power electronics

-MV and HV power electronics

TRL: 3

Intellectual Property:

Keywords: Electrical Engineering, Green Technology, Laser power modulation, Non-contact gate control, Optical gate drive, Optical power transfer