Interleaved DC to DC buck converter for low power application

This paper explains the use of DC to DC Buck Converters for low power application. In many power applications like various microcontrollers, several electronic ICs, laptops, traction signaling, electric vehicles etc, low dc voltage supply is required in controlled manner. The proposed DC-DC converter with interleaved technique can step down a high DC voltage to very low DC voltage with lesser voltage ripple and low value of inductor and capacitor thus reducing the size. With conventional buck chopper for converting high voltage to low voltage, very small duty cycle is required which further adds several limitations on different components and triggering circuitry and requires relatively high values of inductor and capacitor to insure permissible current ripple and voltage ripple i.e. within limits. Simulations have been performed using MATLAB / SIMULINK. All results clearly show that very low voltage can be obtained using proposed topology. Moreover, the desired values of the output voltages can be numerically calculated which absolutely match with simulation results.