Wisconsin Alumni Research Foundation

Technology

Converter Control with Reduced Link Capacitor

A converter is an electrical device for converting electrical energy from one form to another, such as between alternating current (AC) and direct current (DC), between different voltages or frequenci...
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Venkata Giri Venkataramanan, Mahima Gupta | P170108US01

Technology

Inverter for Common Mode Voltage Cancellation

In a drive system, a voltage source inverter (VSI) may be used to transfer real power from a DC power source to an AC load. Conventional VSIs consist of two or three phase-legs, each of which is a ser...
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Bulent Sarlioglu, Di Han | P160142US01

Technology

Combined Capacitor/Inductor with Improved Performance

Inductors and capacitors are fundamental building blocks in many electrical devices and provide energy storage. In many applications (both low- and high-powered electronics) the physical size of these...
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Daniel Ludois, Andy Schroedermeier | P150389US01

Technology

Reducing DC-DC Converter Loss for More Efficient Cars

DC-DC converters are used in a variety of devices to raise or lower voltage. They are used in the power systems of hybrid and electric vehicles to boost the battery’s output voltage. In these system...
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Robert Lorenz, Chi-Ming Wang, Masaki Wasekura | P130119US01

Technology

High-Speed Digital-to-Analog Converter

Digital-to-analog converters (DACs) convert digital data, encoded as bits, into analog signals, such as current or voltage. For example, in devices like MP3 players and CDs, DACs convert audio signals...
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Daniel van der Weide, Kae Oh Sun | P06325US

Technology

Power Conditioning Architecture for Wind Turbine

Wind-powered generators are an increasing source of power for many countries. However, before their use can become widespread, they must be able to work effectively with the existing utility grid. V...
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Venkata Giri Venkataramanan, Patrick Flannery | P06426US

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