Our team

TTPi is an innovative multi-disciplinary team of electrical, electro-magnetic, mechanical, thermal engineers specializing in design of high speed, high power density converters control of all types.

Mark, Lee and Liliana have worked together on industry led research programs for more than ten years.  The company also draws expertise from a range of University of Nottingham academic specialists.

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Lee Empringham PHD

Company Director

Lee is leading the Heterogeneous Integration theme of the Centre’s Tranche 2 funded research programs.

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Liliana De Lillo PhD

Company Director

Liliana has been directly funded by industry developing power conversion technology for integrated drives.

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Mark Johnson Phd


Mark is CTO of TTPi & Director of the EPSRC Power Electronics Centre that co-ordinates UK government funded PE research activities across 12 leading UK Universities.

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Geoff Haynes


Geoff is also “Industry Champion” for the PE Centre charged with accelerating funded research to industrial application.

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Robert Abebe PHD


Robert is an expert in thermal management and integration.

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Ed Christopher PhD


Ed has been involved in several projects requiring high performance DSP control, mainly for HV Grid systems.

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Davide Gottardo


Davide's research interests include design and control of novel topologies for grid connected power converters for distributed generation and/or energy storage solutions.