The paper presents principles and properties of the soft switching PWM DC-DC converters. The attention is focused mainly on high power applications and thus the full-bridge inverters are used in DC-DC converters. Considerations are also given to the control methods…

Paper presents a overview of research in the field of interactive CCTV networks made at the Department of Telecommunication of the Faculty of Electrical Engineering of the University of Zilina. Some results, concerning theoretical and practical aspects of network planning…

Power quality evaluation is in the scope of research activities carried out by the members of Department of Power Electrical Systems (KVES) for many years. Results presented in the paper are the outcomes of number of accomplished measurements and analyses.…

The article deals with the equation solutions for conditional probabilities determination. The number of variables in equation for correlation estimation could be reduced under the specific conditions. Stochastic system could be approximated by the mean values of the conditional probabilities…

This article deals with various technological approaches to realization of electronic logical devices. The accent is given on new possibilities of logic system implementation into single chip microelectronic devices designed on programmable and configurable basis.

Presented paper is based on authors experience on numerical methods of field solution, mostly magnetic. This paper, as the first one of prepared series, deals with mathematical apparatus and basic physical principles, as well as with possible short-comings or advantages…

Biological effects of electromagnetic field (EMF) are still under discussion. Some effects (negative and positive too) are not exactly clear. This paper is talking about possible biological effects and influences of EMF. One area of EMF applications is medicine and…

This article deals with an e-learning in optical communications. Ways of e-learning include learning by education software, multimedial CD and Internet on the www address http://fel.utc.sk/~psanecky/.An aim of multimedial CD development was to develop an didactic tools for the course…

The paper deals with a new type of an electronically commuted two-phase salient pole permanent magnet synchronous motor for an industrial and household appliances. The motor is fed from a single voltage-source inverter with 2 phase rectangular output voltage. The…

Errors occuring in digital transmission are the major source of degradation in that they affect voice services in terms of distortion of voice, and data type services in terms of lost or inaccurate information or reduces throughput. Therefore International Telecommunication…