Results 191 to 200 of about 9,819,249 (244)
Cortical excitability inversely modulates fMRI connectivity via low-frequency neuronal coupling
Sastre-Yagüe D +14 more
europepmc +1 more source
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Suitability of the Static Converters for the Power Factor Correction (PFC)
2021 Devices for Integrated Circuit (DevIC), 2021In this paper, suitability of the static converter topology along with standard structures and applications are proposed to assess the power factor (PF). Various usual issues of static converters are framed out by gross evaluation on the power factor correction (PFC) and improvements.
Tapas Halder
exaly +2 more sources
An Active PFC Boost Converter Topology for Power Factor Correction
2015 Annual IEEE India Conference (INDICON), 2015This paper introduces a single-stage active power factor correction (PFC) AC-DC converter which provides almost unity power factor and minimizes the THD to 7.4 %. For a constant DC output voltage a single phase diode bridge rectifier with a large output capacitor is considered in this paper. This standard topology has a shortcoming of introducing lower
Anup Kumar Panda +2 more
exaly +2 more sources
A Digital Power Factor Correction (PFC) Control Strategy Optimized for DSP
IEEE Transactions on Power Electronics, 2004A predictive algorithm for digital control power factor correction (PFC) is presented in this paper. Based on this algorithm, all of the duty cycles required to achieve unity power factor in one half line period are calculated in advance by digital signal processors (DSP).
Bin Wu, Yan-Fei Liu, Wanfeng Zhang
exaly +2 more sources
A New Three-Phase Power-Factor Correction (PFC) Scheme Using Two Single-Phase PFC Modules
IEEE Transactions on Industry Applications, 2002In this paper, a new three-phase power-factor correction (PFC) scheme is proposed using two single-phase PFC modules. In this approach, the "three" phase input is first transformed to "two" phase by means of a 0.14-pu-rated autotransformer. Two standard single-phase PFC modules are then employed to process the "two" phase power to DC output.
I J Pitel, P N Enjeti, Jaehong Hahn
exaly +2 more sources
2007 European Conference on Power Electronics and Applications, 2007
In this paper a novel and high efficiency conversion system based on a Supercapacitor Recover System (SRS) and a Power Factor Correction circuit (PFC) is proposed and tested. It allows to greatly improve the performances of motion systems for residential application, such as elevators, both in terms of energy efficiency and power demand, allowing the ...
G Tomasso, V Nardi
exaly +4 more sources
In this paper a novel and high efficiency conversion system based on a Supercapacitor Recover System (SRS) and a Power Factor Correction circuit (PFC) is proposed and tested. It allows to greatly improve the performances of motion systems for residential application, such as elevators, both in terms of energy efficiency and power demand, allowing the ...
G Tomasso, V Nardi
exaly +4 more sources
Active Power Factor Correction (PFC) Circuit With Resistor-Free Zero-Current Detection
IEEE Transactions on Power Electronics, 2011An active power-factor correction (PFC) circuit is presented that employs a newly proposed resistor-free zero-current detection (ZCD). While the conventional ZCD requires either a sensing resistor or auxiliary transformer, the proposed ZCD requires only one OFF-chip capacitor.
Changsik Yoo +2 more
exaly +2 more sources
IEEE Transactions on Power Electronics, 2013
The proposed perturbation on-time technique suppresses total harmonic distortion (THD) and, thus, improves the power factor in the power factor correction (PFC) controller. Besides, the adaptive control of the minimum off time by the proposed inhibit time control can improve efficiency even at low ac input voltage.
Ke-Horng Chen +2 more
exaly +2 more sources
The proposed perturbation on-time technique suppresses total harmonic distortion (THD) and, thus, improves the power factor in the power factor correction (PFC) controller. Besides, the adaptive control of the minimum off time by the proposed inhibit time control can improve efficiency even at low ac input voltage.
Ke-Horng Chen +2 more
exaly +2 more sources
2007 IEEE Power Electronics Specialists Conference, 2007
In recent years, the research on power factor correction (PFC) circuits for high-power applications has increased for the rigorous harmonic limits. Three-level boost type PFC is a very attractive solution for high power density and high efficiency three-phase preregulator.
Jianping Ying
exaly +2 more sources
In recent years, the research on power factor correction (PFC) circuits for high-power applications has increased for the rigorous harmonic limits. Three-level boost type PFC is a very attractive solution for high power density and high efficiency three-phase preregulator.
Jianping Ying
exaly +2 more sources
Impedance Analysis and Resonance Mitigation for Boost PFC Converters Using Sample Correction
IEEE Transactions on Power Electronics, 2023 This article presents an impedance-based analysis on boost power factor correction (PFC) converters using the sample correction (SC) with current sampling.
Fangzhou Zhao +2 more
exaly +2 more sources