A voltage mode power converter with the function of digitally duty cycle tuning

Author

Zhu, Xiaohui ; Luo, Ping ; Zhen, Shaowei ; Yang, Kang ; Li, Jiangkun ; Zhou, Zekun

Author_Institution

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

fYear

2011

fDate

3-5 Oct. 2011

Firstpage

319

Lastpage

324

Abstract

A voltage mode power converter with the function of digitally duty cycle tuning is presented. Enough loop gain is required to guarantee a good load regulation. In the proposed design, the load regulation can be improved through digitally duty cycle tuning, based on phase lead compensated voltage mode power converters. The whole circuit is implemented in a 0.13μm 1P8M CMOS process. The simulation results show that the output voltage´s deviation can be controlled within ±10mV when the load current steps from 200mA to 1.65A, and a 14μV/mA load regulation can be obtained.

Keywords

CMOS integrated circuits; load regulation; power convertors; CMOS process; current 200 mA to 1.65 A; digital duty cycle tuning; load current; load regulation; output voltage deviation; size 0.13 mum; voltage -10 mV; voltage 10 mV; voltage mode power converter; Clocks; Equations; Mathematical model; Radiation detectors; Resistors; Tuning; Voltage control; Self-Adjustment; Voltage mode; duty cycle; load regulation; phase lead compensation;

fLanguage

English

Publisher

ieee

Conference_Titel

VLSI and System-on-Chip (VLSI-SoC), 2011 IEEE/IFIP 19th International Conference on

Conference_Location

Hong Kong

Print_ISBN

978-1-4577-0171-9

Electronic_ISBN

978-1-4577-0169-6

Type

conf

DOI

10.1109/VLSISoC.2011.6081600

Filename

6081600