Design And Analysis Of A Fast Transient Voltage Regulator With All Ceramic Output Capacitors For Mobile Microprocessors

The need to have fast transient response of the voltage regulator is driven by the increasing current slew rate of the mobile microprocessor. Hence, optimizing the switching frequency of the voltage regulator becomes an important step to achieve a balance between preserving the efficiency of the vo...

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Main Author:	Lee , Chun Heng
Format:	Thesis
Language:	English
Published:	2015
Subjects:	TK7800-8360 Electronics
Online Access:	http://eprints.usm.my/41197/1/LEE_CHUN_HENG_24_Pages.pdf
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id	my-usm-ep.41197
record_format	uketd_dc
spelling	my-usm-ep.411972018-07-31T02:48:31Z Design And Analysis Of A Fast Transient Voltage Regulator With All Ceramic Output Capacitors For Mobile Microprocessors 2015 Lee , Chun Heng TK7800-8360 Electronics The need to have fast transient response of the voltage regulator is driven by the increasing current slew rate of the mobile microprocessor. Hence, optimizing the switching frequency of the voltage regulator becomes an important step to achieve a balance between preserving the efficiency of the voltage regulator and improving the transient response. Besides, output capacitor solution with multilayer ceramic capacitor has also become more popular due to its small size and cheap cost. Over the years, even though the topology of the buck converter remains unchanged, there are plenty of innovations and breakthroughs in the power stage of the voltage regulator and controller technology. In addition, output impedance oriented design and adaptive voltage positioning (AVP) feature are also introduced to address the transient requirements. Apart from improving the dynamic response of the voltage regulator, many research works also focus on improving the efficiency of the voltage regulator, especially for battery-powered systems. A fast transient voltage regulator with all ceramic output capacitors for mobile microprocessor is proposed in this study. The outcome of the study shows that the voltage regulator designed is stable with the proposed type and number of multilayer ceramic capacitors. More importantly, the actual transient results correlate well with the simulation results where minimal transient droop and overshoot are observed with a dynamic current load step with a slew rate of 10.5A per 1 μs. In conclusion, a fast transient voltage regulator with all ceramic output capacitors is designed and analyzed which proven to have better transient performance compared to the original design on the test board. 2015 Thesis http://eprints.usm.my/41197/ http://eprints.usm.my/41197/1/LEE_CHUN_HENG_24_Pages.pdf application/pdf en public masters Universiti Sains Malaysia Pusat Pengajian Kejuruteraan Elektrik dan Elektronik
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	TK7800-8360 Electronics
spellingShingle	TK7800-8360 Electronics Lee , Chun Heng Design And Analysis Of A Fast Transient Voltage Regulator With All Ceramic Output Capacitors For Mobile Microprocessors
description	The need to have fast transient response of the voltage regulator is driven by the increasing current slew rate of the mobile microprocessor. Hence, optimizing the switching frequency of the voltage regulator becomes an important step to achieve a balance between preserving the efficiency of the voltage regulator and improving the transient response. Besides, output capacitor solution with multilayer ceramic capacitor has also become more popular due to its small size and cheap cost. Over the years, even though the topology of the buck converter remains unchanged, there are plenty of innovations and breakthroughs in the power stage of the voltage regulator and controller technology. In addition, output impedance oriented design and adaptive voltage positioning (AVP) feature are also introduced to address the transient requirements. Apart from improving the dynamic response of the voltage regulator, many research works also focus on improving the efficiency of the voltage regulator, especially for battery-powered systems. A fast transient voltage regulator with all ceramic output capacitors for mobile microprocessor is proposed in this study. The outcome of the study shows that the voltage regulator designed is stable with the proposed type and number of multilayer ceramic capacitors. More importantly, the actual transient results correlate well with the simulation results where minimal transient droop and overshoot are observed with a dynamic current load step with a slew rate of 10.5A per 1 μs. In conclusion, a fast transient voltage regulator with all ceramic output capacitors is designed and analyzed which proven to have better transient performance compared to the original design on the test board.
format	Thesis
qualification_level	Master's degree
author	Lee , Chun Heng
author_facet	Lee , Chun Heng
author_sort	Lee , Chun Heng
title	Design And Analysis Of A Fast Transient Voltage Regulator With All Ceramic Output Capacitors For Mobile Microprocessors
title_short	Design And Analysis Of A Fast Transient Voltage Regulator With All Ceramic Output Capacitors For Mobile Microprocessors
title_full	Design And Analysis Of A Fast Transient Voltage Regulator With All Ceramic Output Capacitors For Mobile Microprocessors
title_fullStr	Design And Analysis Of A Fast Transient Voltage Regulator With All Ceramic Output Capacitors For Mobile Microprocessors
title_full_unstemmed	Design And Analysis Of A Fast Transient Voltage Regulator With All Ceramic Output Capacitors For Mobile Microprocessors
title_sort	design and analysis of a fast transient voltage regulator with all ceramic output capacitors for mobile microprocessors
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Kejuruteraan Elektrik dan Elektronik
publishDate	2015
url	http://eprints.usm.my/41197/1/LEE_CHUN_HENG_24_Pages.pdf
_version_	1747820887305879552

Design And Analysis Of A Fast Transient Voltage Regulator With All Ceramic Output Capacitors For Mobile Microprocessors

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