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Research Fellows Directory

Sankara Narayanan Ekkanath Madathil

Professor Sankara Narayanan Ekkanath Madathil FInstP, FIET

Research Fellow


University of Sheffield

Research summary

Power semiconductor devices are key enablers in power electronics systems

used in most modern day appliances. These devices are assembled into modules,

which are then used to build converters (such as the DC-DC, DC-AC, AC-DC or

AC-AC) to transform electric power to desired voltage as required by power

electronics systems. Reducing the power loss and increasing the efficiency of

power semiconductor devices has a direct influence on size, weight and energy

savings in these systems. Over the past decade, significant, disruptive innovations

have taken place in power semiconductor devices made of Silicon and wide band

gap semiconductors such as Silicon Carbide and Gallium Nitride. However,

replacing a module made of existing technology with next generation technology

is not straight forward as these can affect stability, reliability and efficiency of

existing systems.

The purpose of this fellowship is to understand the system level benefits which

can be made with the use of next generation power semiconductor devices and

converters in the diverse application sectors within R-R. Understanding system

level benefits can also give an opportunity to custom make power semiconductor

devices with desired properties so that significant system level efficiencies can be

leveraged further. As the next generation power semiconductor technologies are

at a nascent stage, there is significant room for optimization of these technologies.

As the research will contribute to accelerating the penetration of next-generation

highly efficient power semiconductors into next generation power systems, this

approach will yield dividends in terms of significant savings in energy and reduced

CO2 emissions.

Grants awarded

Systems Impact of Next Generation Power Semiconductors and ConverterTechnologies

Scheme: Industry Fellowship

Dates: Jul 2013 - Jun 2017

Value: £192,783

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