Now showing items 1-10 of 926
Analysis and design of constant-frequency peak-current-controlled high-power-factor boost rectifier with slope compensation
This paper presents the analysis and the design of a peak-current-controlled high-power-factor boost rectifier, with slope compensation, operating at constant frequency. The input current shaping is achieved, with continuous ...
A unity power factor multiple isolated outputs switching mode power supply using a single switch
The authors present an offline switching power supply with multiple isolated outputs and unity power factor with the use of only one power processing stage, based on the DC-DC SEPIC (single ended primary inductance converter) ...
Speciation of aqueous chromium(VI) solutions with the aid of Q-mode factor analysis followed by oblique projection
(Elsevier Science BvAmsterdamHolanda, 2000)
Modeling of pre-regulator boost ZCS interleaved operating in critical conduction mode and with high power factor
This paper presents a new pre-regulator boost operating in the boundary area between the continuous and discontinuous conduction modes of the boost inductor current, where the switches and boost diode performing zero-current ...
Chemometric methods applied to the speciation of aqueous Cr(VI) solutions.
(Soc Brasileira QuimicaSao PauloBrasil, 2001)
Aplicação de métodos quimiométricos na especiação de Cr(VI) em solução aquosaChemometric methods applied to the speciation of aqueous Cr(VI) solutions
(Sociedade Brasileira de Química, 2001)
Humidity levels drive reproductive modes and phylogenetic diversity of amphibians in the Brazilian Atlantic Forest
Aim The diversity of reproductive modes among amphibians constitutes a striking example of how differences in the biology of species provide important explanations for species distribution patterns on a broad scale. We ...