Results 331 to 340 of about 1,395,480 (391)
Some of the next articles are maybe not open access.
IEEE transactions on power electronics, 2021
This article compares the dual active bridge (DAB) and LLC converter topologies when utilized in a high-step-down fixed-conversion-ratio application, such as the dc–dc stage in laptop and LED TV adapters.
S. Mukherjee +2 more
semanticscholar +1 more source
This article compares the dual active bridge (DAB) and LLC converter topologies when utilized in a high-step-down fixed-conversion-ratio application, such as the dc–dc stage in laptop and LED TV adapters.
S. Mukherjee +2 more
semanticscholar +1 more source
2023
Abstract Philanthropy limited liability companies (LLCs) have increasingly displaced the private foundation. The foundation ensures that elite giving lives up to its promises, so its decline should set off alarm bells. The flexibility of the LLC undoes the accountability delivered by the foundation.
Dana Brakman Reiser, Steven A. Dean
openaire +1 more source
Abstract Philanthropy limited liability companies (LLCs) have increasingly displaced the private foundation. The foundation ensures that elite giving lives up to its promises, so its decline should set off alarm bells. The flexibility of the LLC undoes the accountability delivered by the foundation.
Dana Brakman Reiser, Steven A. Dean
openaire +1 more source
Pittinos Financial Advisers, Llc
SSRN Electronic Journal, 2010The owner of a small financial services firm is evaluating the performance of four funds to determine whether to offer them to his clients. The funds span a variety of objectives and include a recently initiated fund. The case explores issues related to the evaluation of mutual fund performance, including the selection of benchmarks and the effect of ...
Marc L. Lipson, Richard B. Evans
openaire +1 more source
IEEE transactions on power electronics, 2021
In a two-stage inverter, the instantaneous output power pulsates at twice the output frequency (2fo), generating the second harmonic current (SHC), which will propagate into the front-end dc–dc converter.
Fei Liu, X. Ruan, Xinze Huang, Y. Qiu
semanticscholar +1 more source
In a two-stage inverter, the instantaneous output power pulsates at twice the output frequency (2fo), generating the second harmonic current (SHC), which will propagate into the front-end dc–dc converter.
Fei Liu, X. Ruan, Xinze Huang, Y. Qiu
semanticscholar +1 more source
IEEE transactions on industrial electronics (1982. Print), 2020
The LLC resonant converters commonly adopt frequency modulation (FM) or combination of FM with phase-shift modulation to regulate its output voltage. However, in these control schemes, a variable switching frequency range is required, which makes the ...
Yuqi Wei +5 more
semanticscholar +1 more source
The LLC resonant converters commonly adopt frequency modulation (FM) or combination of FM with phase-shift modulation to regulate its output voltage. However, in these control schemes, a variable switching frequency range is required, which makes the ...
Yuqi Wei +5 more
semanticscholar +1 more source
IEEE Journal of Emerging and Selected Topics in Power Electronics, 2019
The LLC converter is deemed the most widely used topology as dc/dc converter in server and telecom applications. To increase the output power and reduce the input and output current ripples, three-phase interleaved LLC converter is becoming more and more
Chao Fei, R. Gadelrab, Qiang Li, F. Lee
semanticscholar +1 more source
The LLC converter is deemed the most widely used topology as dc/dc converter in server and telecom applications. To increase the output power and reduce the input and output current ripples, three-phase interleaved LLC converter is becoming more and more
Chao Fei, R. Gadelrab, Qiang Li, F. Lee
semanticscholar +1 more source
IEEE transactions on industrial electronics (1982. Print), 2020
For an LLC converter, it is difficult to realize the wide output range with conventional pulse frequency modulation control because of the limited operating frequency. This paper proposes a new hybrid control method.
Lin Shi, Bangyin Liu, S. Duan
semanticscholar +1 more source
For an LLC converter, it is difficult to realize the wide output range with conventional pulse frequency modulation control because of the limited operating frequency. This paper proposes a new hybrid control method.
Lin Shi, Bangyin Liu, S. Duan
semanticscholar +1 more source
IEEE transactions on power electronics, 2021
Hold-up time operation is a crucial requirement for distributed power systems and server power supplies. LLC resonant converter is widely used in these applications due to its high efficiency and power density characteristics.
Yuqi Wei, Quanming Luo, A. Mantooth
semanticscholar +1 more source
Hold-up time operation is a crucial requirement for distributed power systems and server power supplies. LLC resonant converter is widely used in these applications due to its high efficiency and power density characteristics.
Yuqi Wei, Quanming Luo, A. Mantooth
semanticscholar +1 more source
IEEE Journal of Emerging and Selected Topics in Power Electronics, 2020
In this article, an LLC converter using gallium nitride (GaN) transistors is proposed for a 48-V regulated and isolated bus converter. Compared with pulsewidth modulation (PWM)-based topologies, the soft switching capability of an LLC allows operation at
M. Ahmed, Ahmed Nabih, F. Lee, Qiang Li
semanticscholar +1 more source
In this article, an LLC converter using gallium nitride (GaN) transistors is proposed for a 48-V regulated and isolated bus converter. Compared with pulsewidth modulation (PWM)-based topologies, the soft switching capability of an LLC allows operation at
M. Ahmed, Ahmed Nabih, F. Lee, Qiang Li
semanticscholar +1 more source
An Interleaved Secondary-Side Modulated LLC Resonant Converter for Wide Output Range Applications
IEEE transactions on industrial electronics (1982. Print), 2020In this paper, an LLC type converter with two interleaved pulsewidth modulation (PWM) rectifiers is proposed. Compared with the conventional LLC converter, it achieves a wide voltage regulation range independent of load.
Zhiqing Li, Bo Xue, Haoyu Wang
semanticscholar +1 more source