This paper describes control algorithms for the output part of a diesel-electric power supply unit which is composed of a three-phase four-leg voltage source inverter with a sinusoidal filter. The paper is focused on the development of PWM strategies for the mentioned inverter. The...

The article deals with various options of starting the induction melting process of metal oxides and other materials in a cold crucible. This application is often referred to as skull-melting-method because the to-be-melted material gets melted in its own body. That means that the&...

The capacity of glassy carbon in aprotic salt solutions in propylene carbonate (PC) is investigated as an approach to the optimalisation of electrochemical supercapacitors. The strong influence of water residuum on capacities at negative potentials is indicated. The capacities exhibit a shal...

The depletion of PMMA gel polymer electrode containing a binary electrolyte (cadmium perchlorate Cd(ClO4)2 in propylene carbonate PC) has been investigated. Impedance spectra were measured before and after recording a voltammogram of cadmium electrodeposition. The increase of electrolyte resistance, o...

The paper deals with optimization of printed circuit board assembly (PCBA) design based on defects per million opportunities (DPMO) metric. Due to DPMO data predictions for a given new PCBA design is possible to optimize its layout in terms of yield and quality even before...

The work is focused on investigation of behavior of thick film resistors. The changes of parameters of thick film samples exposed to accelerated ageing were analyzed. The samples were exposed in three types of environment during relatively long time. The samples with different size...