Multi level inverters are becoming very attractive for industries due to their high power rating, high voltage rating and high efficiency is achieved without transformer. These also improves the overall performance of the system as these produces fewer harmonics. As the number of levels increases the quality of voltage waveform is also increases. In this paper the analysis of Three Phase Diode ...

This paper presents a new soft-switching solution recommended for three-level neutral-point-clamped inverters. The operation principles of the proposed solution, working stages, selection elements, and control algorithm are comprehensively discussed herein. method inverter main switches is same as that an operating according to hard-switching technique. correctness was confirmed by results diff...

BACKGROUND Cord blood lactate at birth is a marker of antenatal hypoxia, and is comparable to pH as a prognostic tool. OBJECTIVE To determine, by a prospective observational study, the effect of delayed sampling from arteries and veins that were double clamped to isolate the blood from the placenta (clamped), and from vessels that were not isolated from the placenta (unclamped). METHODS Pai...