A ZCS high efficient single input multiple output DC-DC converter with step up capability

The purpose of this study is to introduce the design of highly efficient single inductor/input multiple output (SIMO) power converter. In order to manage the power the proposed converter can operate at step up as well as step down state. Also proposed converter is able to boost low source input voltage to controllable voltage at high voltage DC bus and middle voltage stage. The voltage from high voltage bus side can be used as main power and voltage from middle terminals can be used to supply power to the individual dc loads or this supply can be used to charge the auxiliary power source. This SIMO converter study includes coupled inductor scheme with only one switch to obtain power control. SIMO converter with this scheme having properties of voltage clamping and soft switching. Result shows that the objectives of high efficient converter, i.e high conversion ratio, multiple output voltage is achieved by the proposed converter. The effectiveness proposed SIMO converter is verified using MATLAB/SIMULINK software.