A dual-loop shunt regulator using current-sensing feedback techniques

Authors:
Jiann-Jong Chen;Bo-Han Hwang;Yuh-Shyan Hwang
Affiliations:
Department of Electronic Engineering, National Taipei University of Technology, Taipei 106, Taiwan;Department of Electronic Engineering, National Taipei University of Technology, Taipei 106, Taiwan;Department of Electronic Engineering, National Taipei University of Technology, Taipei 106, Taiwan
Venue:
Microelectronics Journal
Year:
2010

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Abstract

The dual-loop shunt regulator using current-sensing feedback techniques is proposed in this paper. This architecture adopts a voltage and current loops to increase the transient response of the proposed shunt regulator. The maximum output current of the proposed shunt regulator is 180mA at a 1.8V output. Moreover the architecture of the proposed shunt regulator can suppress the stray effect which is from power supply. The prototype of the proposed shunt regulator is fabricated by the Taiwan Semiconductor Manufacturing Corporation (TSMC) 0.35-@mm CMOS 2P4M process. The active area is only 579x355@mm^2.