K
Khai D. T. Ngo
Researcher at Virginia Tech
Publications - 329
Citations - 7607
Khai D. T. Ngo is an academic researcher from Virginia Tech. The author has contributed to research in topics: Inductor & Power module. The author has an hindex of 38, co-authored 315 publications receiving 6526 citations. Previous affiliations of Khai D. T. Ngo include University of Florida & Toyota Motor Engineering & Manufacturing North America.
Papers
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Switching converter with pseudo-resonant DC link
TL;DR: In this paper, a pseudo-resonant DC link for coupling direct current from a DC source to an inverter includes a plurality of switches which are controlled so as to minimize switching loss in the DC link and in the inverter.
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A 1200-V, 60-A SiC MOSFET Multichip Phase-Leg Module for High-Temperature, High-Frequency Applications
TL;DR: In this paper, a high-temperature, high-frequency, wire-bond-based multichip phase-leg module was designed, fabricated, and fully tested using paralleled Silicon Carbide (SiC) MOSFETs.
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New Core Loss Measurement Method for High-Frequency Magnetic Materials
TL;DR: In this paper, a new method is proposed for high-frequency core loss measurement that utilizes capacitive cancellation, which is suitable for HF and VHF core loss measurements, and it greatly reduces the sensitivity to phase discrepancy, the dominating error source in the conventional two-winding method.
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Acoustic energy harvesting using an electromechanical Helmholtz resonator.
Fei Liu,Alex Phipps,Stephen Horowitz,Khai D. T. Ngo,Louis N. Cattafesta,Toshikazu Nishida,Mark Sheplak +6 more
TL;DR: This paper presents the development of an acoustic energy harvester using an electromechanical Helmholtz resonator (EMHR), which consists of an orifice, cavity, and a piezoelectric diaphragm that is sufficient to power a variety of low power electronic devices.
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Steady-state analysis and design of a switched-capacitor DC-DC converter
Khai D. T. Ngo,R. Webster +1 more
TL;DR: In this article, a representative switched-capacitor DC-DC converter topology is presented, circuit operation is explained, and control strategies are identified, and state-space averaging is used to analyze steady state performance and to develop control criteria and design equations.