Search Results - "Lee, F.C."

High-efficiency, high step-up DC-DC converters by Qun Zhao, Lee, F.C.

“…Many applications call for high step-up DC-DC converters that do not require isolation. Some DC-DC converters can provide high step-up voltage gain, but with…”
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Tapped-inductor buck converter for high-step-down DC-DC conversion by Kaiwei Yao, Mao Ye, Ming Xu, Lee, F.C.

“…The narrow duty cycle in the buck converter limits its application for high-step-down dc-dc conversion. With a simple structure, the tapped-inductor buck…”
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Effects of parasitic parameters on EMI filter performance by Shuo Wang, Lee, F.C., Chen, D.Y., Odendaal, W.G.

“…Two filters with identical topologies and components can exhibit a significant difference in filter effectiveness when the layouts are different. The goal of…”
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Breast cancer knowledge, attitudes and screening behaviors among Indian–Australian women by Kwok, C, Tranberg, R, Lee, F.C

“…Abstract Purpose of research The aims of the study were to report breast cancer screening practices among Indian–Australian women and to examine the…”
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Characterization and parasitic extraction of EMI filters using scattering parameters by Shuo Wang, Lee, F.C., Odendaal, W.G.

“…In this paper, the electromagnetic interference (EMI) filter is first characterized using Scattering parameters (S-parameters). Based on this S-parameters…”
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A zero-voltage and zero-current switching three-level DC/DC converter by Canales, F., Barbosa, P., Lee, F.C.

“…This paper presents a novel zero-voltage and zero-current switching (ZVZCS) three-level DC/DC converter. This converter overcomes the drawbacks presented by…”
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Investigation of candidate VRM topologies for future microprocessors by Xunwei Zhou, Pit-Leong Wong, Peng Xu, Lee, F.C., Huang, A.Q.

“…By reducing the power supply voltage, faster, lower power consumption, and high integration density data processing systems can be achieved. The current…”
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A novel current-sharing control technique for low-voltage high-current voltage regulator module applications by Xunwei Zhou, Peng Xu, Lee, F.C.

“…Future generations of microprocessors are expected to exhibit much heavier loads and much faster transient slew rates. Today's voltage regulator module (VRM)…”
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Effects of Interactions Between Filter Parasitics and Power Interconnects on EMI Filter Performance by Shuo Wang, van Wyk, J.D., Lee, F.C.

“…This paper first analyzes the electrical parameters of differential-mode (DM) and common-mode (CM) propagation on power interconnects. The…”
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Characterization, evaluation, and design of noise Separator for conducted EMI noise diagnosis by Shuo Wang, Lee, F.C., Odendaal, W.G.

“…In this paper, at first, three requirements for noise separators are specified and the disadvantages of traditional evaluation methods are pointed out. Noise…”
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Integrating active, passive and EMI-filter functions in power electronics systems:a case study of some technologies by van Wyk, J.D., Lee, F.C., Zhenxian Liang, Rengang Chen, Shuo Wang, Bing Lu

“…Assemblies of power semiconductor switches and their associated drive circuits are at present available in modules. Upward into the multi-kilowatt range, mixed…”
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Common-Mode Noise Reduction for Power Factor Correction Circuit With Parasitic Capacitance Cancellation by Shuo Wang, Lee, F.C.

“…In this paper, a method using negative capacitance to cancel the common-mode (CM) parasitic capacitance of boost power factor correction (PFC) converters is…”
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Improved light-load efficiency for synchronous rectifier voltage regulator module by Xunwei Zhou, Donati, M., Amoroso, L., Lee, F.C.

“…DC/DC converter with high efficiency over a wide load range is necessary for many low voltage applications, such as battery supplied systems and…”
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New start-up schemes for isolated full-bridge boost converters by Lizhi Zhu, Kunrong Wang, Lee, F.C., Jih-Sheng Lai

“…Two new start-up schemes for isolated full-bridge boost converters are proposed in this paper. The control timing for each scheme, which is compatible with…”
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Uncertainty in the Impact of the COVID-19 Pandemic on Air Quality in Hong Kong, China by Huang, Yuhan, Zhou, John, Yu, Yang, Mok, Wai-chuen, Lee, Casey, Yam, Yat-shing

“…Strict social distancing rules are being implemented to stop the spread of COVID-19 pandemic in many cities globally, causing a sudden and extreme change in…”
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Topologies and design considerations for distributed power system applications by Lee, F.C., Barbosa, P., Peng Xu, Jindong Zhang, Bo Yang, Canales, F.

“…This paper describes developments in the technology of converters primarily intended for server-type distributed power system (DPS) applications. The paper…”
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A Generalized Zero-Current-Transition Concept to Simplify Multilevel ZCT Converters by Yong Li, Lee, F.C.

“…A concept of generic half-bridge zero-current-transition (ZCT) cell is developed, which employs one auxiliary switch and one LC resonant tank to assist…”
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A method of defining the load impedance specification for a stable distributed power system by Wildrick, C.M., Lee, F.C., Cho, B.H., Choi, B.

“…By applying the loop gain analysis technique, a forbidden region for the polar plot of the ratio of impedances at the interface between two cascaded power…”
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Utilization of an active-clamp circuit to achieve soft switching in flyback converters by Watson, R., Lee, F.C., Hua, G.C.

“…Flyback derived power convertor topologies are attractive because of their relative simplicity when compared with other topologies used in low power…”
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Integrated CoolMOS FET/SiC-diode module for high performance power switching by Zhenxian Liang, Bing Lu, van Wyk, J.D., Lee, F.C.

“…A Si CoolMOS field effect transistor and SiC diode assembly with gate driver in boost configuration (ratings at 600V/12A), for power factor correction…”
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