Design of an On-Chip Hybrid DC/DC Converter

Abstract

Abstract-This paper shows the design of a hybrid on-chip VLSI DC-DC converter for low to medium integrated circuit power consumption that combines a switching and a linear regulator in parallel. The main goal is to take the best of both approaches, obtaining good power efficiency as in switching converters with small voltage output ripple as in linear converters. While the switching regulator is used to drive most of the load current, the linear regulator supplies the required current to filter out the steady state ripple due to inductor switching without the need of a filtering output capacitor. In addition, the latter regulator supplies the required current when the load changes abruptly and the inductor current is momentarily insufficient. The design has been tested with simulations using a standard 180 nm CMOS technology showing good performance.

Stability analysis and experimental validation of the supercapacitor‐assisted low‐dropout regulator

“…Three basic DC–DC converters used in these devices are linear regulators, inductor‐based switch‐mode converters and switched capacitor converters (charge pumps) [3]. These three techniques can be combined to generate multiple DC power rails in modern electronic products to achieve the best possible performance [3, 4]. On the other hand, non‐conventional methods have also been introduced for different applications [5, 6] and these all have various pros and cons, based on their design limitations.…”

DC/DC Boost Converter–Inverter as Driver for a DC Motor: Modeling and Experimental Verification

“…Nowadays, DC/DC power electronic converters are used in several applications [1][2][3][4][5][6]. Such applications include, among others, renewable energies, aircraft, electric vehicles, robots, and telecommunications.…”