Electric vehicles (EVs) have grown increasingly popular in Malaysia, but the country’s consistently hot and humid climate presents a challenge: high temperatures reduce the efficiency and lifespan of sensitive electrical components.
To address this, Dr Freddy Tan and his team from the Department of Electrical and Electronic Engineering conducted research on Gallium Nitride Field-Effect Transistors (GaN FETs), an advanced component that handles high heat and voltage. To ensure these components perform reliably in tropical climates, they designed an Active Gate Drive (AGD) circuit offering better control and thermal stability.
Electric vehicles (EVs) have grown increasingly popular in Malaysia in recent years.
Every EV depends on a gate drive - the ‘brain’ controlling power flow. Although GaN FETs can handle power efficiently, they are highly sensitive to heat and rapid switching. To solve this, the team designed a smarter gate driver that ensures precise power control and protects components for safer, more reliable EV performance.
Why This Matters for Malaysian Drivers
“For Malaysian EV drivers and owners, there are three key benefits that address their challenges and needs. Firstly, faster charging – our GaN FET system's efficient power transfer reduces charging times at stations. Secondly, smoother driving performance – precise control eliminates power surges on highways and in city traffic. Lastly, longer vehicle lifespan – maintaining optimal voltage levels protect components from stress, significantly reducing maintenance needs.” explained Dr Freddy.
The Potential Beyond EVs
Dr Freddy and his team developed a Gallium Nitride Field-Effect Transistors (GaN FETs) to enhance EV efficiency.
The possibilities beyond EVs are endless. The improved GaN FET power control technology enhances efficiency and enables faster, safer charging and discharging in solar energy systems. Moreover, electric buses deployed for public transportation can benefit from more reliable operations, especially in tropical conditions where conventional systems degrade faster.
By addressing limitations in current EV technology through optimised GaN FET control, this research supports Malaysia's sustainable transportation goals while enhancing EV performance. These advancements also position EVs as environmentally preferable and more reliable for Malaysian drivers. Beyond EVs, it accelerates long-term green energy and sustainability efforts for a greener Malaysia.