Results 171 to 180 of about 24,165 (233)

Developmental excitation-inhibition imbalance permanently reprograms autism-relevant social brain circuits

Stuefer A, Colombo G, Gini S, Sastre-Yagüe D, Coletta L, Rocchi F, Aldrighetti M, D’Epifanio B, Como G, Balasco L, Barsotti N, Montani C, Alvino F, Galbusera A, Migliarini S, Bertozzi S, Pasqualetti M, Bozzi Y, Tucci V, Cancedda L, Lombardo M, Gozzi A.   +21 more
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Dual Boost High performances Power Factor Correction (PFC)

2008 Twenty-Third Annual IEEE Applied Power Electronics Conference and Exposition, 2008
In this paper a novel power factor correction (PFC) dual boost scheme is proposed. It is based on an optimized power sharing where the active filtering approach is used to increase the current quality and at the same time to reduce the switching losses.
TOMASSO, Giuseppe, ATTAIANESE, Ciro, NARDI, Vito, PARILLO, Fernando   +3 more
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Single-Stage Power Factor Correction (PFC) Converter Design

Applied Mechanics and Materials, 2014
A single-stage PFC converter was introduced in this paper, then the converter EMI filters, converters inductors, high-frequency transformers and power components were designed and chosen, proven to good effect.
Bao Wen Sun, Yun Xi Wu
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A new three-phase power-factor correction (PFC) scheme using two single-phase PFC modules

IEEE Transactions on Industry Applications, 2002
In 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.
null Jaehong Hahn, P.N. Enjeti, I.J. Pitel   +2 more
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A new power factor correction technique using PFC boost converter

2012 11th International Conference on Environment and Electrical Engineering, 2012
Generally non-linear loads are the main source of harmonics. This paper presents one new control scheme to compensate the harmonic current generated by the diode rectifier so as to achieve a power factor nearer to unity and regulate the DC-bus voltage.
Sukanta Kumar Sahoo, Hitesh R. Jariwala
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Analysis of single-phase boost power factor correction (PFC) converter

Proceedings of the IEEE 1999 International Conference on Power Electronics and Drive Systems. PEDS'99 (Cat. No.99TH8475), 1999
In this paper, the single-phase boost power factor correction converter is discussed in detail. With the Fourier series analysis of the general model, the low frequency model and high frequency model are proposed. From the low frequency model, the expression of the duty cycle, the boundary between continuous current mode (CCM) and discontinuous current
null Liu Ping, null Meng Yu, null Kang Yong, null Zhang Hui, null Chen Jian   +4 more
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Techniques to obtain single-stage power supplies with power factor correction (PFC)

International Journal of Electronics, 2011
In order to comply with the standards, the input current of the switch mode power supplies (SMPS) must be almost sinusoidal, i.e. the SMPS must achieve power factor correction. This requirement is normally reached with the use of an additional input converter, typically a boost, resulting in a two-stage SMPS with the inherent drawbacks: high cost and ...
Hugo Ribeiro, Beatriz Borges
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Low cost power factor correction (PFC) converter using delay control

Proceedings of Power Conversion Conference - PCC '97, 2002
A low cost universal input voltage (90/spl sim/264 V) power factor correction (PFC) converter for a 200 W power supply in a personal computer (PC) is proposed. It consists of the PFC part followed by a DC-DC power converter as in a conventional two-stage scheme. However a single PWM controller is used as in a single-stage, single-switch PFC scheme. The
K.C. Lee, B.H. Cho
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An active PFC boost converter topology for power factor correction

2015 Annual IEEE India Conference (INDICON), 2015
This 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
Pratap Ranjan Mohanty, Anup Kumar Panda, Dhiman Das   +2 more
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High performances supercapacitor recovery system including Power Factor Correction (PFC) for elevators

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 ...
C. ATTAIANESE, NARDI V, PARILLO F, TOMASSO G   +3 more
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