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Integrated switching DC-DC converter...

Luo, Feng.

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Integrated switching DC-DC converters with hybrid control schemes.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Integrated switching DC-DC converters with hybrid control schemes./
作者:	Luo, Feng.
面頁冊數:	162 p.
附註:	Source: Dissertation Abstracts International, Volume: 70-07, Section: B, page: 4388.
Contained By:	Dissertation Abstracts International70-07B.
標題:	Electrical engineering. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3366701
ISBN:	9781109283853

Integrated switching DC-DC converters with hybrid control schemes.
Luo, Feng.

Integrated switching DC-DC converters with hybrid control schemes. - 162 p.

Source: Dissertation Abstracts International, Volume: 70-07, Section: B, page: 4388.

Thesis (Ph.D.)--The University of Arizona, 2009.

In the modern world of technology, highly sophisticated electronic systems such as multiprocessor modules and system-on-chips (SoCs) pave the way for future's information technology breakthroughs. However, rapid growth on complexity and functions in such systems has also been a harbinger for the power increase, which tends to severely limit system miniaturization, efficiency, reliability and lifetime. Power management techniques have thus been introduced to mitigate this urgent power crisis. Switching power converters are considered to be the best candidate due to their high efficiency and voltage conversion flexibility. Moreover, switching power converter systems are highly nonlinear, discontinuous in time, and variable. This makes it viable over a wide operating range, under various load and line disturbances. However, only one control scheme like pulse width modulation (PWM) cannot optimize the whole system in different scenarios. Hybrid control schemes are thus employed in the power converters to operate jointly and seamlessly for performance optimization during all operation periods of start-up, steady state and dynamic voltage/load transient state.

ISBN: 9781109283853Subjects--Topical Terms:

649834
Electrical engineering.

Integrated switching DC-DC converters with hybrid control schemes.
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100 1 $a Luo, Feng. $3 723850
245 1 0 $a Integrated switching DC-DC converters with hybrid control schemes.
300 $a 162 p.
500 $a Source: Dissertation Abstracts International, Volume: 70-07, Section: B, page: 4388.
500 $a Adviser: Dongsheng Ma.
502 $a Thesis (Ph.D.)--The University of Arizona, 2009.
520 $a In the modern world of technology, highly sophisticated electronic systems such as multiprocessor modules and system-on-chips (SoCs) pave the way for future's information technology breakthroughs. However, rapid growth on complexity and functions in such systems has also been a harbinger for the power increase, which tends to severely limit system miniaturization, efficiency, reliability and lifetime. Power management techniques have thus been introduced to mitigate this urgent power crisis. Switching power converters are considered to be the best candidate due to their high efficiency and voltage conversion flexibility. Moreover, switching power converter systems are highly nonlinear, discontinuous in time, and variable. This makes it viable over a wide operating range, under various load and line disturbances. However, only one control scheme like pulse width modulation (PWM) cannot optimize the whole system in different scenarios. Hybrid control schemes are thus employed in the power converters to operate jointly and seamlessly for performance optimization during all operation periods of start-up, steady state and dynamic voltage/load transient state.
520 $a In this dissertation, three different switching power converter topologies, along with different hybrid control schemes are studied. First, an integrated switching buck converter with a dual-mode control scheme is proposed. A pulse-train (PT) control, employing a combination of four different pulse control patterns, is proposed to achieve optimal regulation performance under various operation scenarios. Meanwhile, a high-frequency pulse-width modulation (PWM) control is adopted to ensure low output ripples and avoid digital limit cycling in the steady state. Second, an integrated buck-boost converter with a tri-mode digital control is presented. It employs adaptive step-up/down voltage conversion to enable a wide range of output voltage. This is beneficial to ever-increasing dynamic voltage scaling (DVS) enabled, modern power-efficient VLSI systems. Dynamic voltage scaling ( DVS) is such a technology which adaptively adjusts the supply voltage and operation frequency according to instantaneous power and performance demand, such that a system is constantly operated at the lowest possible power level without compromising its performance. Third, a digital integrated single-inductor multiple-output (SIMO) converter, tailored for DVS-enabled multicore systems is addressed. With a multi-mode control algorithm, DVS tracking speed and line/load regulation are significantly improved, while the converter still retains low cross regulation.
520 $a All three integrated CMOS DC-DC converters have been designed and fabricated successfully, demonstrating the techniques proposed in this research. The measurements results illustrate superior line and load regulation performances and dynamic response in all these designs. The approaches presented in this dissertation are evidently viable for realizing compact and high efficient DC-DC converters.
590 $a School code: 0009.
650 4 $a Electrical engineering. $3 649834
650 4 $a Systems science. $3 3168411
690 $a 0544
690 $a 0790
710 2 $a The University of Arizona. $b Electrical & Computer Engineering. $3 1018545
773 0 $t Dissertation Abstracts International $g 70-07B.
790 $a 0009
791 $a Ph.D.
792 $a 2009
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3366701