A BRIDGELESS PFC BOOST RECTIFIER WITH OPTIMIZED MAGNETIC UTILIZATION PDF

The present disclosure relates to the field of bridgeless boost PFC circuits and systems. In particular, this disclosure relates to current sensing in bridgeless boost PFC circuits and systems. This section provides background information related to the present disclosure which is not necessarily prior art. Power factor of an alternating current AC electric power system is defined as the ratio of the real power to the apparent power flowing to a load, and is a number between 0 and 1 frequently expressed as a percentage, e. In an electrical power system, a load with a low power factor draws more current than a load with a high power factor for the same amount of useful power transferred.

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Shabana J, In this paper, a Bridgeless buck Rectifier with Single Inductor is presented which considerably increases the efficiency of conventional buck power factor correction converters by reducing the number of simultaneously conducting semiconductor components. Moreover, the low utilization of the magnetic component in the conventional bridgeless buck rectifier is improved by modified bridgeless buck rectifier with single inductor.

The performance of the Modified Converter is evaluated on a 1-kHz, 5-W prototype circuit that is designed to produce an Output Voltage of 12 V for battery chargers Applications. Patent 4 , Oct. Huber, Yungtaek Jang ,et al. Power Electronics and drive systems, Dec Choi, J.

Kwon, E. Kim, J. Lee, and B. Chen and W. Endo, T. Yamashita, and T. PESC Rec. Huber, L. Gang, and M. Power Electron. Bing, X. Yun-Xiang, H. Feng, and C. Grigore and J. Weaver and P. IEEE Appl. APEC , Feb. Lee, S. Wang, and S. Redl and L. Lo and R. Jang and Milan M. Redl, A. Kislovski, and B. APEC ,Mar. Huber and M. PE-2, no.

Verghese, C. Bruzos, and K. PESC , , pp. Call for Paper June Editorial Board. Current Issue. Annual Subscription. Paper Submission. Copyrights Infringement. Publication Ethics. Publication Charges. Mode of Payment. Paper Template. Copyright Form.

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A Bridgeless PFC Boost Rectifier With Optimized Magnetic Utilization

In the proposed converter, conduction losses are reduced by eliminating bridge diodes. In addition, the impedance of the return current paths is lowered and conduction losses are reduced by applying a gate-on signal which is maintained during half line cycle to inactive switches. Consequently, the conduction losses of the proposed converter are significantly reduced and high efficiency is achieved. Besides high efficiency, the proposed converter provides high power factor PF and a continuous input current. Input current ripple can be easily removed by a simple filter capacitor.

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US8717791B2 - Bridgeless boost PFC circuits and systems - Google Patents

Skip to search form Skip to main content You are currently offline. Some features of the site may not work correctly. DOI: Jovanovic and D. Jovanovic , D. The implementation of a bridgeless power factor correction PFC boost rectifier with low common-mode noise is presented in this paper.

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A Bridgeless PFC Boost Rectifier With Optimized Magnetic Utilization

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