Conventional boost PFC converter suffers from the high conduction loss in the input rectifier-bridge. Higher efficiency can be achieved by using the bridgeless boost topology. In this paper, digital simulation of bridgeless PFC boost rectifiers, also called dual boost PFC rectifiers, is presented. Performance comparison between the conventional PFC boost rectifier and the bridgeless PFC boost r...

MIRCEA-CONSTANTIN SORA1, PATRICIA FEIL2, MAXIMILLIAN BINDER1, PETRU MATUSZ3*, HORIA PLES4 1Plastination Laboratory, Microscopy & Advanced Optical Imaging, Medical University of Vienna, Schwarzspanierstr. 17, Vienna 1090, Austria, 2Department of Surgery, Division of Pediatric Surgery, Medical University of Vienna, Währinger Gürtel 18-20, Vienna 1090, Austria, 3 “Victor Babes” University of Medic...

1Department of Medicine I, Wilhelminenspital Vienna, Vienna, Austria; 2Internal Hematooncological Clinic, Faculty Hospital Brno and Faculty of Medicine MU, Brno, Czech Republic; 3Clinic of Hematology, Faculty Hospital with Policlinic, Kosice, Slovakia; 4Clinical Division of Oncology, Medical University of Vienna, Vienna, Austria; 5Clinical Hospital “Rebro,” Zagreb, Croatia; 6Department of Inter...

Research in wireless data transmission and mobile communication is often based on simulations. Using such simulations one can compare the performance and verify the correct operation of developed algorithms and transmission schemes. Nevertheless, real-world performance measurements of wireless communiations techniques might give further insights and may help at investigating transmission scenar...

X iv :1 11 1. 04 81 v1 [ co nd -m at .s of t] 2 N ov 2 01 1 Computer simulation of bottle brush polymers with flexible backbone: Good solvent versus Theta solvent conditions Panagiotis E Theodorakis, 2, 3, 4, a) Hsiao-Ping Hsu, b) Wolfgang Paul, c) and Kurt Binder d) Institut für Physik, Johannes Gutenberg-Universität Mainz, Staudinger Weg 7, D-55099 Mainz, Germany Faculty of Physics, Universit...

A circuit technique that reduces the boost-converter losses caused by the reverse-recovery current of the rectifier is described. The losses are reduced by inserting an inductor in the series path of the boost switch and rectifier to control the di=dt rate of the rectifier during its turn off. The energy from the inductor after the boost switch turn off is returned to the input or delivered to ...

Abstract This paper analyzes the principle of PWM rectifier and presents a unity power factor control method of PWM rectifier. Controller used double closed-loop PI control, which inner uses three-phase input current control method controlled by unity power factor and outer controls the output DC voltage of rectifier. Voltage phase detection methods which proposed could eliminate the affection ...

A simple scheme to increase operating pulse-number and easily obtain high-quality input current waveform of three-phase diode rectifier without PWM is investigated in this paper. The topology and operation principle are described. Then, the performance is evaluated and compared with the ordinary 6-pulse rectifier by means of a 20kW setup. By referring to the experimental results, the advantages...

This paper deals with the simulation of a Boost Power Factor Correction (PFC) Converter with Electro Magnetic Interference (EMI) Filter. The diode rectifier with output capacitor gives poor power factor. The Boost Converter of PFC Circuit is analyzed and then simulated with diode rectifier. The Boost PFC Converter with EMI Filter is simulated for resistive load. The power factor is improved usi...

Three formalisms of different kinds – VDM, Maude, and basic CCS – are evaluated for their suitability for the modelling and verification of dynamic software reconfiguration using as a case study the dynamic reconfiguration of a simple office workflow for order processing. The research is ongoing, and initial results are reported.