Integrating High-Density Capacitors to Create Efficient Power Converter
Technology Description:
The Center for Power Electronics Systems (CPES) at Virginia Tech is developing an extremely efficient power converter that could be used in power adapters for small, light-weight laptops and other types of mobile electronic devices. Power adapters convert electrical energy into usable power for an electronic device, and they currently waste a lot of energy when they are plugged into an outlet to power up. CPES is integrating high-density capacitors, new magnetic materials, high-frequency integrated circuits, and a constant-flux transformer to create its efficient power converter. The high-density capacitors enable the power adapter to store more energy. The new magnetic materials also increase energy storage, and they can be precisely dispensed using a low-cost ink-jet printer which keeps costs down. The high-frequency integrated circuits can handle more power, and they can handle it more efficiently. And, the constant-flux transformer processes a consistent flow of electrical current, which makes the converter more efficient.
Potential Impact:
If successful, CPES would reduce the amount of energy consumed by notebooks and netbooks by 15%.
Security:
Reduced energy consumption would help decrease demand for foreign sources of fuel.
Environment:
Efficient electronic components and devices conserve energy and reduce harmful emissions.
Economy:
Stand-by energy drain from power adapters accounts for about 10% of an average home’s annual power usage—this amounts to about $4 billion in wasted spending across the U.S. every year.
Contact
ARPA-E Program Director:
Dr. Timothy Heidel
Project Contact:
Prof. Khai Ngo
Press and General Inquiries Email:
ARPA-E-Comms@hq.doe.gov
Project Contact Email:
kdtn@vt.edu
Partners
University of Texas, Dallas
University of Florida
Related Projects
Release Date:
03/02/2010