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Power Device Engineering Lab
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A lab that designs power semiconductors and develops the technology for using electricity without waste.
AboutAbout the lab
Using electricity without waste.
The Power Device Engineering Lab studies semiconductor components (power semiconductor devices) that convert electricity efficiently.
To expand renewable energy, it is essential not to waste the electricity that is generated, and to use it while keeping the amount generated and the amount used in balance.
The field of technology for controlling and using electricity well is called power electronics, and the semiconductor components that handle the control of electricity in its circuits are called power devices.
The lab looks ahead to a new power network that will support a low-carbon society.
Key terms
- Power electronics
- A technological field that converts electrical energy into the voltage and frequency needed so that it can be used efficiently
- Power device
- A semiconductor element that handles large amounts of power. It acts as a switch that turns the flow of electricity on and off at high speed
- Power module
- A package that houses multiple power devices and peripheral components together as a single component
ResearchResearch themes
The lab studies power semiconductor devices that convert electricity efficiently, covering everything from the design of the structure of the components themselves, to the control that brings out their performance, to power module technology that combines multiple functions. It aims to build a new power network for a low-carbon society.
*Illustrative imageDesigning new power semiconductors
The lab devises structures for new power semiconductor devices and studies methods for designing them. Beyond reducing power loss, it aims for devices suited to future energy conversion, including robustness and ease of control.
*Illustrative imageSmart control that brings out performance
The lab studies control techniques that operate power devices so that they deliver their full performance. This also covers techniques for keeping the entire system running stably while monitoring how the devices operate.
*Illustrative imageIntegrating multiple functions into one package
The lab studies techniques for building new functions into power modules. For example, it aims to combine mechanisms for connecting multiple components in series or in parallel, and mechanisms for monitoring operation, into a single module.
MembersFaculty
The lab's members consist of faculty members and doctoral and master's students.
- ProfessorWataru Saito
VoicesStudent voices
Compiled from answers by students who were in the lab. Ratings and reviews reflect individual students' experiences, not the lab's official views.
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “High voltage power line tower silhouetted against a clear evening sky” Shixart1985 / CC BY 2.0 (cropped)
- Designing new power semiconductors: “Power MOSFET” Suyash Dwivedi / CC BY-SA 4.0 (cropped)
- Smart control that brings out performance: “Dornbirn-Inverter KACO Powador 25000xi-M-circuit board-09ASD” Asurnipal / CC BY-SA 4.0 (cropped)
- Integrating multiple functions into one package: “CM600DU-24NFH” Pslawinski / CC BY-SA 3.0 (cropped)
- Related lab (電力変換システム工学研究室): “Electric power transformation substation in Iraq” 作者不詳 / Public domain (cropped)
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（栄部 比夏里） ): “All-solid lithium-sulfur battery ( )” Oak Ridge National Laboratory / CC BY 2.0 (cropped) - Related lab (電離反応工学研究室): “Minimal Fab exhibit at Tsukuba Science Square 5” Syced / CC0 (cropped)
- Related lab (エネルギー熱物理科学研究室): “Close-up of a Fire” Thomas Kirchel / CC BY 4.0 (cropped)
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