A Flexible Pulse Skip Modulation buck DC-DC converter enabling Minimum Energy Point Tracking

Author

Yikun Mo ; Ping Luo ; Shaowei Zhen

Author_Institution

State Key Lab. of Electron. Thin Films & Integrated Devices, Univ. of Electron. Sci. & Technol. of China, Chengdu, China

fYear

2012

fDate

Oct. 29 2012-Nov. 1 2012

Firstpage

1

Lastpage

3

Abstract

A Flexible Pulse Skip Modulation (FPSM) buck DC-DC converter working in Discontinuous Conduction Mode (DCM) enabling Minimum Energy Point Tracking (MEPT) is proposed in this paper. The converter creatively combines together two techniques, namely FPSM and MEPT. The former improves the efficiency of the DC-DC converter in light load condition while the latter dramatically lower the load energy consumption. The circuit is simulated in a standard 0.13μm CMOS process and the simulation results show that 1. about 56% energy will be saved when digital circuits work at MEP; 2. the output voltage ranges from 100 mV to 600 mV with a step of 50 mV; 3. the loop successfully finds the MEP at 350 mV.

Keywords

CMOS digital integrated circuits; DC-DC power convertors; circuit simulation; flexible electronics; pulse modulation; CMOS process; DCM; FPSM buck DC-DC converter; MEPT; circuit simulation; digital circuit; discontinuous conduction mode; energy saving; flexible pulse skip modulation buck DC-DC converter; load condition; load energy consumption; minimum energy point tracking; size 0.13 mum; voltage 100 mV to 600 mV; voltage 50 mV; Digital circuits; Energy consumption; Heuristic algorithms; Inductors; Load modeling; Simulation; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State and Integrated Circuit Technology (ICSICT), 2012 IEEE 11th International Conference on

Conference_Location

Xi´an

Print_ISBN

978-1-4673-2474-8

Type

conf

DOI

10.1109/ICSICT.2012.6467720

Filename

6467720