Multi-phase DC-DC converter with ripple-less operation for thermo-electric generator

This paper presents the possibility to make the dc current ripple to zero. The simulation results show that the ripple-less operation is possible theoretically. The fast response in the current control is also shown by using the simple digital control algorithm. The control for the load change is investigated in simulation. The simulation results show that the output current loop is more suitable than the output voltage loop. Experimental results show that the ripple cannot be suppressed substantially because of the delay in control system. Therefore, the suppression of the effect of the delay in control is next step.