Design of Digital and Analog Controlled System with Improved Throughput

摘要

In this work voltage converter is deployed in order to reduce the power consumption, power dissipation and switching power in all the practical applications. It present step down voltage converter in which analog to digital converter is used at the feedback for the reduced switching level. This will further feed the output to a digital converter where in turns losses be reduced. At the light loading the control loop operates in the pulse skipping mode. In case of heavy loading it operates in frequency modulation mode (FMM). For achieving this new algorithm of VDC (Voltage Direct Conversion) algorithm is proposed. It frequency ranges from 31.25 kHz to 1.5 MHz and more can it be operated. The design is layout in a 180 nm CMOS technology using cadence virtuoso tool.