A HIGHLY EFFICIENT ZETA/CUK BUCK-BOOST DC/DC CONVERTERWITH SYMMETRICAL BIPOLAR OUTPUT VOLTAGE (PART 1)
The results of the circuit analysis of the basic circuits of DC / DC converters and the dependence oftheir conversion coefficient on the filling factor of the pulse train are presented. It is noted that thespecific feature of the investigated DC / DC converter circuits is explained by the circuitry of the switchcomponent of the upper and lower levels. The use of a combination of a non-inverting ZETA converterand an inverting Cuk converter to convert a monopolar (unipolar) input voltage into a symmetricalbipolar output voltage, which have uniquely low output voltage ripple compared to other converters, hasbeen substantiated. The analysis of the processes and factors influencing the efficiency of the converteris carried out using circuit simulation in the Electronics Workbench environment.