Title :
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
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;
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
DOI :
10.1109/VLSISoC.2011.6081600
