NDLI: An Adaptive Voltage Scaling Buck Converter with Preset Circuit

Content Provider	IET Digital Library
Author	Luo, Ping Wang, Dongjun Peng, Xuanlin
Abstract	An Adaptive voltage scaling (AVS) buck converter with Preset circuit (P-AVS), which can adaptively scale the output voltage fast, is presented. The voltage scaling loop in the proposed Pulse width modulation (PWM) buck with P-AVS is divided into coarse scaling loop and fine scaling loop, which can regulate the reference voltage adaptively according to load status. The coarse scaling loop can set quickly a coarse value of reference voltage according to the operation frequency of the load by a preset block, and the fine scaling loop is designed to scale voltage finely. The proposed P-AVS buck converter, with 3.3V input and 2MHz switching frequency, is fabricated in a 0.13mm standard CMOS process. The output voltage and the frequency of the load are designed from 0.7V to 1.5V and 30MHz to 120MHz respectively. Compared with a typical AVS buck, the proposed P-AVS converter can save 17ms scaling up from 0.7V to 1.1V.
Starting Page	229
Ending Page	236
Page Count	8
ISSN	10224653
Volume Number	28
e-ISSN	20755597
Issue Number	Issue 2, Mar (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/cje/28/2
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/cje.2019.01.007
Journal	Chinese Journal of Electronics
Publisher Date	2019-03-01
Access Restriction	Open
Rights Holder	© Chinese Institute of Electronics
Subject Keyword	Adaptive Voltage Scaling Buck Converter CMOS Integrated Circuit Coarse Scaling Loop Fine Scaling Loop Frequency 2.0 MHz Frequency 30.0 MHz to 120.0 MHz P-AVS Buck Converter Power Converter Power Electronics Power Supplies to Apparatus Power Supply Preset Block Preset Circuit Pulse Width Modulation PWM Power Converter Reference Voltage Size 0.13 Mum Standard CMOS Process Supervisory Circuit Typical AVS Buck Voltage 0.7 V to 1.5 V Voltage 3.3 V Voltage Scaling Loop
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Electrical and Electronic Engineering

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