DESIGNING OF THREE SWITCHES ISOLATED DC-DC CONVERTER WITH SOLAR APPLICATION
Keywords:
-Abstract
This project documents a new three-switch, isolated boost DC-DC converter. The major features of
the proposed converter are as follows: 1) continuous input current; 2) reduced one active switch, one
additional diode, and one additional capacitor; 3) unchanged primary and secondary voltage waveforms of
the transformer when the duty cycle is changed; and 4) removal of the snubber circuit. This paper presents
the operating principles, analysis, parameter design guidelines, and simulation results for the proposed
converter. To verify the performance of the proposed converter, a 400 W prototype was constructed with a
40-60 V DC input. A PID controller was used to maintain the DC output voltage at 400 V. The simulation
and experimental results matched those of the theoretical analysis.
