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Dissertations / Theses on the topic 'Dual-buck'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Sun, Pengwei. "Cascade Dual-Buck Inverters for Renewable Energy and Distributed Generation." Diss., Virginia Tech, 2012. http://hdl.handle.net/10919/26637.

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Renewable energy and distributed generation are getting more and more popular, including photovoltaic modules (PV), wind turbines, and fuel cells. The renewable energy sources need the power electronics interface to the utility grid because of different characteristics between the sources and the grid. No matter what renewable energy source is utilized, inverters are essential in the microgrid system. Thanks to flexible modular design, transformerless connection, extended voltage and power output, less maintenance and higher fault tolerance, the cascade inverters are good candidates for utilit

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2

LI, QIANG. "A SINGLE-PHASE DUAL-OUTPUT AC-DC CONVERTER WITH HIGH QUALITY INPUT WAVEFORMS." UKnowledge, 2003. http://uknowledge.uky.edu/gradschool_theses/242.

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A single-phase, buck-boost based, dual-output AC-DC converter is studied in this thesis. The converter has two DC outputs with opposite polarities, which share the same ground with the input power line. The power stage performance, including the input filter, is studied and procedure to select power components is given. The circuit model is analyzed to develop appropriate control. Zerocrossing distortion of the source input current is addressed and a solution is proposed. Experimental results are satisfactory in that a high power factor line current results for steady-state operation.

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3

Törmänen, Daniel. "Framtidens D250S Dual batteriladdare." Thesis, Högskolan i Gävle, Avdelningen för elektronik, matematik och naturvetenskap, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-16426.

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This thesis aims to develop proposals and models for a modular electronics construction to a future D250S Dual battery charger. The aim also includes investigation of possibilities to use some of Texas Instruments C2000 microprocessors. The reason for this is that CTEK SWEDEN AB wants to renew the present D250S Dual battery charger and lower the manufacturing costs. The thesis work has involved gathering theoretical facts for the development of a design on the modular electronic construction, the choice on which microprocessor to use, the choice of electronic components and facts about periphe

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4

Eachempatti, Haritha. "Single Inductor Dual Output Buck Converter." 2009. http://hdl.handle.net/1969.1/ETD-TAMU-2009-05-708.

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The portable electronics market is rapidly migrating towards more compact devices with multiple functionalities. Form factor, performance, cost and efficiency of these devices constitute the factors of merit of devices like cell phones, MP3 players and PDA's. With advancement in technology and more intelligent processors being used, there is a need for multiple high integrity voltage supplies for empowering the systems in portable electronic devices. Switched mode power supplies (SMPS's) are used to regulate the battery voltage. In an SMPS, maximum area is taken by the passive components such

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5

Huang, Tang-Yu, and 黃堂祐. "A High Efficiency Dual-Mode Buck Converter." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/02993659578494616844.

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碩士<br>國立臺灣海洋大學<br>電機工程學系<br>95<br>Abstract A high efficiency DC to DC buck converter is designed in this thesis. The high conversion efficiency converter can effectively prolong the portable products using time. The buck converter can switch between different modulation modes according to different load current conditions. With this arrangement, the converter can reach high efficiency under different load conditions. The converter can switch between pulse width modulation mode and pulse frequency modulation mode for heavy load and light load conditions, respectively. Dead-time control circuit

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6

FANG, YU-TENG, and 方有騰. "Buck Converter Dual Output with Tapped Inductor." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/5hqq33.

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碩士<br>國立臺灣科技大學<br>電子工程系<br>107<br>This thesis proposes a dual-output voltage mode buck with a tapped inductor. The general single-inductor multi-output uses a traditional inductor. The main feature of this paper is to extend the duty cycle of the tapped inductor to achieve a larger step-down ratio, and to extend the responsibility. The extend cycle reduces the peak current of the upper power stage switch to improve the switching loss, operates the inductor current in continuous conduction mode, and uses phase sequence scheme to suppress the cross regulation phenomenon. This thesis is implement

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7

Chen, Shih-Chi, and 陳思齊. "Design of a Dual-Mode Single-Inductor Dual-Output Buck Converter." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/49017607442693818972.

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碩士<br>國立臺灣海洋大學<br>電機工程學系<br>102<br>Nowadays, portable devices with smartphone market growing fast. Portable devices not only possess simple function, but also need have more various power supply system to supply different variety, so that can suffice all different requirements. In order to meet the power needs various circuits. This paper design of a Dual-Mode Single-Inductor Dual-Output Buck Converter. The converter can between pulse-width modulation(PWM) and pulse-frequency modulation(PFM). It let output load, between light loads and heavy loads all can keep high efficiency. The TSMC 0.35um

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8

Chung, Ya-Wu, and 鍾業武. "A Dual-Mode Synchronous High Efficiency BUCK Converters." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/29335576675946278517.

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碩士<br>國立臺灣海洋大學<br>電機工程學系<br>98<br>This thesis is a new type of dual-mode modulation Zero Current Detection (ZCD) & Adaptive deadtime architecture that can be used in the DC to DC step-down switching voltage regulator/converter, heavy conditions in the converter into the pulse width modulation mode (PWM), in the light load conditions converter into the pulse frequency modulation (PFM), this structure operation in PWM and PFM are very high power conversion efficiency. And this structure both in PWM or PFM are accurate with the load current can change the size to set the appropriate Deadtime rang

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9

Chou, Di-Chi, and 周帝吉. "Single-Inductor Dual-Output DC-DC Buck/Boost Converter." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/01129641559018482846.

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碩士<br>國立臺灣大學<br>電子工程學研究所<br>104<br>A Single-Inductor Dual-Output (SIDO) DC to DC Buck/Boost Converter topology is proposed. The power stage switching sequence is different from conventional type. In addition to three switches, a freewheel switch is used to prevent negative inductor current occurring and degrading the power efficiency. The converter uses ripple-based control method, which facilitates high switching frequency and decreasing the passive components volume. The chip is fabricated in 0.18 μm CMOS, the proposed SIDO DC-DC Buck/Boost Converter can produce 0.95 V buck voltage with

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10

Yu-LinChen and 陳毓霖. "Dual Mode Digital Buck Converter Controller without Current Sensor." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/d5ta2t.

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11

Zhang, Chao. "A Dual-Supply Buck Converter with Improved Light-Load Efficiency." Thesis, 2011. http://hdl.handle.net/1969.1/ETD-TAMU-2011-05-9521.

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Power consumption and device size have been placed at the primary concerns for battery-operated portable applications. Switching converters gain popularity in powering portable devices due to their high efficiency, compact sizes and high current delivery capability. However portable devices usually operate at light loads most of the time and are only required to deliver high current in very short periods, while conventional buck converter suffers from low efficiency at light load due to the switching losses that do not scale with load current. In this research, a novel technique for buck conve

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12

Chen, Hui. "A Dual Supply Buck Converter with Improved Light Load Efficiency." Thesis, 2013. http://hdl.handle.net/1969.1/149497.

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Power consumption is the primary concern in battery-operated portable applications. Buck converters have gained popularity in powering portable devices due to their compact size, good current delivery capability and high efficiency. However, portable devices are operating under light load condition for the most of the time. Conventional buck converters suffer from low light-load efficiency which severely limits battery lifetime. In this project, a novel technique for buck converter is proposed to reduce the switching loss by reducing the effective input supply voltage at light load. This is a

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13

ZHANG-JIAN, CHENG-KAI, and 張簡丞凱. "High Efficiency Dual-Mode Buck Converter with Accurate Current Sensing." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/77fx3u.

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碩士<br>國立高雄應用科技大學<br>電子工程系<br>105<br>In this thesis, a buck converter with accurate output current sensing mechanism to the change of loading current is proposed. The current sensing circuit can reduce the response time of control circuit of power transistor and the energy in inductor can be stored or released fast. It reduces the influence of loading current change on output voltage. Compared to voltage-mode control method, the current-mode control has better properties of load regulation, line regulation and fast transient response. The soft-start circuit and the zero current sensing circuit

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14

Hsiang-YiChu and 朱湘儀. "Dual Buck Inverter with Constant Frequency Variable Hysteresis Current Control." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/90045155481958795728.

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碩士<br>國立成功大學<br>電機工程學系<br>102<br>The purpose of this thesis is to implement a dual buck inverter for tide power transfer system. Because the change of front-end tide power transfer system output AC voltage could be varying and low. By realized the first stage of boost converter to rectify and boost the voltage, then convert power to the second stage of dual buck inverter. The thesis presents a new control strategy of constant frequency with variable hysteresis width. It can design the filter and choose power components easily when using the new type control. Compare to conventional hysteresis

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15

Ming-KaiChuang and 莊銘凱. "A New Dual-Buck Five-level Inverter with Coupled Inductors." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/30675287382179477219.

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碩士<br>國立成功大學<br>電機工程學系<br>102<br>The input capacitors used in conventional multilevel inverters commonly experience a voltage-imbalance problem. Accordingly, the thesis proposes a new dual-buck inverter with coupled inductors to realize a five-level inverter, consisting of single input capacitor, a dual-buck module, and a full-bridge module. With the coupled inductors, the inverter ensures an improved sinusoidal voltage to the load. In addition, the dual-buck module enhances system reliability by solving the shoot-through problem existing in conventional circuits. The proposed dual-buck module

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16

Chien, Feng-Wei, and 簡峯偉. "A High Efficiency and Wide Range Dual-Mode Buck Converter." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/56165578553019225250.

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碩士<br>國立中興大學<br>電機工程學系所<br>94<br>The content of this thesis is to design and realize a DC to DC buck converter. The control methods of the converter are analyzed and designed including current mode pulse width modulation, voltage mode pulse width modulation, and pulse frequency modulation. It is suitable for electronic system applications and to prolong the usage time of batteries such as digital camera, PDA, mobile phone, etc. Wide range, high conversion efficiency, fast transient response, and automatically switching of the control method are the research topics of this thesis. For switc

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17

Hsu, Chih-yao, and 徐稚堯. "Design of Buck Converters with Dual-Path Capacitor Multiplier Technique." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/24388100849539619996.

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碩士<br>國立臺灣科技大學<br>電子工程系<br>100<br>The purpose of this thesis is to reduce the compensation capacitance with the novel capacitor multiplier technique. Differing from the conventional capacitor muliplier technique, a new technique named “dual-path capacitor multiplier” is applied into dc-dc converters. Its main concept is to charge and discharge a capacitor simultaneously by two reversed currents. As a result, the equivalent capacitance is enlarged. This technique reduces the compensation capacitor effectively and has great performance in transient response. This converter had been fabricated wi

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18

Chin-WeiHsu and 許晉維. "Digital Dual-Loop Buck Converter Using Charge-Balance Control Technique." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/6f9499.

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19

Lee, Hui-Hsuan, and 李卉瑄. "Single-Inductor Dual-Input Dual-Output Buck-Boost Converter for Battery-Assisted Photovoltaic Energy Harvesting." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/69632389310558582760.

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碩士<br>國立交通大學<br>電子研究所<br>105<br>In this paper, we presented a single-inductor dual-input dual-output (SIDIDO) power converter with two-dimensional adaptive on-time (2-D AOT) control for IoT applications. The proposed system combines energy from a 0.55-V to 0.7-V photovoltaic (PV) module with 1.4-V zinc-air battery to extend the battery life. The proposed converter respectively employs buck-boost mode and buck mode for PV module and the battery to produce two different output voltages. For low power digital circuits, a 0.4-0.6 V is supplied from the first output, and the other output with 1-1.2

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20

Ng, Kendy Chun-Wa. "A Digitally Controlled Dual Output Stage Buck Converter with Transient Suppression." Thesis, 2009. http://hdl.handle.net/1807/18935.

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To support the increasingly demanding requirements for power conversion units, a digitally controlled dual output stage buck converter is designed. The system consists of a dual output stage, which includes an auxiliary buck output stage connected in parallel with a main output stage. The auxiliary output stage is only active during load transient to suppress the output voltage variation. A digital controller is designed to control both stages with a linear/nonlinear control scheme. Nonlinear control is applied during load transient based on the capacitor charge balance principle; whereas

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21

Zhan, Zi-zeng, and 詹子增. "Study and Implementation of a Dual-Mode Buck Power Factor Corrector." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/55834889185565944492.

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碩士<br>國立臺灣科技大學<br>電子工程系<br>102<br>This thesis aims to study a dual-mode buck active power factor corrector (PFC). Under light-load condition, the circuit is operated at boundary conduction mode (BCM) to reduce the switching loss. Otherwise, the circuit is operated at continuous conduction mode (CCM) under heavy-load condition. The peak inductor current is reduced and the conduction loss is less. First, the loss distributions of the PFC at various load levels for both BCM and CCM are analyzed. Therefore, a transition point can be found to switch between the two control modes. A 150-W dual-mode

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22

Lian, Bo-Sheng, and 連柏勝. "Design of CMOS DC-DC Buck Converter with Dual Filtering Inductors." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/26602816816547867804.

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碩士<br>國立勤益科技大學<br>電子工程系<br>101<br>This thesis proposes a novel DC-DC buck converter with dual filtering inductors to reduce the converter power consumption when the converter is operated at light loading. The converter operates in discontinuous conduction mode. Pulse frequency modulation is used as a control mechanism. Based on the loading status, this circuit will automatically switch to select the desired inductor. Comparison with single filter inductor DC-DC buck converter, the converter can effectively reduce power conduction loss. In addition, a block of dead time buffer is designed as th

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23

Su, Chien-Chung, and 蘇建中. "Design of a Dual-phase Voltage-mode DC-DC Buck Converter." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/264jbg.

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碩士<br>國立臺灣海洋大學<br>電機工程學系<br>107<br>In recent years, technology has developed rapidly, and electronic products have become thinner and can use many functions at the same time. Lithium batteries need to provide many voltages to different system modules at the same time, and the usage time will be shortened as the power consumption becomes larger. An effective power management system is an important thing in a limited volume and battery capacity. A good power management system can extend the life of the product and reduce the frequency of battery charging. In view of the above mentioned problems

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Liang, Sin-jhang, and 梁信章. "Single-Inductor Dual-Output Buck-Boost Converter Design Using Two Power MOS." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/hn2mp2.

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碩士<br>國立雲林科技大學<br>電子工程系<br>104<br>A lot of electronic products require more than one power supply for the system. It will inevitably need a lot of power converter to provide stable voltage and it will occupy a larger silicon area and high power consumption. Therefore, design a high efficient converter with small size is a great challenge。 In this paper, we propose two kinds of converters are using pulse width modulation technology (PWM). One is the single-inductor dual-output (Single-Inductor dual-output, SIDO) buck converter, where the first output voltage is 3.3V and the second output volta

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Bu-WeiChen and 陳卜薇. "Digitally Controlled Low Cross-Regulation Single-Inductor Dual-Output (SIDO) Buck Converter." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/88339981928559349190.

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碩士<br>國立成功大學<br>電機工程學系<br>102<br>A digitally controlled SIDO buck converter using the Phase Sequence Interchange (PSI) scheme for low cross-regulation is proposed. The voltage-mode SIDO buck converter operated in CCM has simple structure and low cross-regulation characteristic with PSI scheme. In addition, a discharging path is adopted for the load drop condition to further reduce cross-regulation effect. The circuit model derivation for the voltage-mode structure and system stability analyses in both time domain and frequency domain are illustrated in detail. The digital control is implemente

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26

Yen-JueChen and 陳彥儒. "Dual on Time (DOT) Buck Converters of Low Ripple for Energy Harvesters." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/31601393881940674009.

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碩士<br>國立成功大學<br>電機工程學系<br>103<br>In this thesis, a novel low-ripple dual on-time (DOT) buck circuit for energy harvesters. Constant on-time (Constant-On-Time, COT)-typed control technologies for buck switching regulator circuits is investigated, simulated, and implemented. There are potential tradeoff limitations between efficiency and ripple for traditional constant on-time control technologies, so this thesis presents a 'Dual On-Time' (DOT) technology. By using two different on-time periods, the designer can achieve high efficiency buck regulator circuit while maintaining low ripple in an ul

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LEE, CHIA-CHUN, and 李嘉峻. "A DC-DC BUCK CONVERTER IC WITH PWM/PFM DUAL MODE CONTROL." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/16548803252225836529.

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碩士<br>大同大學<br>電機工程學系(所)<br>104<br>A DC-DC bulk converter has been designed and simulated with TSMC 0.35 CMOS models. To improve the conversion efficiency, the converter is designed to switch between two modes, PWM mode for heavy load and PFM mode for light load. This converter with on-chip current sensor can operate from 300 kHz to 600kHz with supply voltage from 3 to 5 V suitable for battery supply applications. With a 3.7V supply, switching frequency 262.47kHz, a 10-µF off-chip capacitor and a10-µH off-chip inductor, the HSPICE simulation results show that the output ripple voltage is about

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Hong, Zi-Chian, and 洪子騫. "Design of a Dual-Mode High-Efficiency Buck Converter for Portable Applications." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/50834435813987174499.

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碩士<br>國立臺灣海洋大學<br>電機工程學系<br>105<br>In recent years, the portable electronic devices market is flourishing quickly and product features tend to be diversification. The miniaturization of power management modules and improvement of conversion efficiency become the primary consideration. The major impact of the power management module size is the size of the external inductor and output capacitor. In order to achieve the purpose of miniaturization, we increase the switching frequency to reduce inductance and capacitance sizes. However, the conversion efficiency at light loads is not well when ope

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Kuo, Rong-Kai, and 郭榮凱. "A Dual-Mode DC/DC Buck Converter with Fast Transient Response Control." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/14788594483790114148.

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碩士<br>中興大學<br>電機工程學系所<br>95<br>The design of a DC-DC buck switching regulator for high power conversion efficiency and fast transient response is presented in this thesis. It is suitable for portable electronic applications powered by batteries such as mobile phone, digital camera, PDA, etc. 　　To make power conversion more efficient, the regulator uses PFM and PWM dual control mode, for light load and heavy load condition, respectively. In addition, a zero current detector is used to reduce the unnecessary power consumption in light load. Furthermore, in order to eliminate the excess large cu

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Wei, Yuang-Hung, and 魏源宏. "A Dual –Mode Operation Synchronous CMOS Switching Buck Regulator with Temperature Sensor." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/33766003498224950459.

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碩士<br>國立臺灣海洋大學<br>電機工程學系<br>99<br>In recent years, the smart touch mobile phones, Global Positioning System（GPS）satellite navigation unit, driving recorder, high definition（HD）digital camera, Light-Emitting Diode（LED）lighting, and related electronic products have emerged. It makes the system end of product development companies extensively use microprocessors, digital signal processing（DSP）, and multi-module systems to increase product functionality and meet product demand. Hence, it increases demand for the power of their respective function module. The control of system and system design al

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Du, Yi-Rong, and 杜宜融. "Design of Single-Inductor Dual-Output Buck Converter and Class D Amplifier." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/2ntj9x.

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碩士<br>國立臺北科技大學<br>電腦與通訊研究所<br>96<br>The first part of this thesis introduces a single-inductor dual-output dc-dc buck converter using the pulse width modulation technology. The circuit using an inductor can export two groups of dc voltages and can save the chip area. Controlling mechanism can choose charge path by comparing two groups output voltage with reference voltage. The buck converter is implemented with 3.3-V TSMC 0.35μm CMOS DPQM processes, and the chip area is 1.02 x 1.01mm2 (without PAD). The second part of this thesis introduces the design of Class D amplifier with second order sig

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Liu, Chia-Szu, and 劉佳賜. "A CMOS DC-DC Buck Converter with PWM/PFM Dual-Mode Control." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/2jefwj.

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碩士<br>大同大學<br>電機工程學系(所)<br>107<br>This thesis proposes a DC-DC buck converter with TSMC 0.35μm CMOS process, using pulse width modulation (PWM) and pulse frequency modulation (PFM) dual mode switching to reduce output voltage ripple and improve conversion efficiency. This circuit is designed for products with the power supply input voltage from 3V to 5V. The output voltage is stepped down to 3V. The operating frequency of PWM is 1MHz. The HSPICE simulation results show that the output voltage ripple is less than 15mV and the optimum conversion efficiency is from 93% to 95% at 150mA load curren

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33

Chou, Chia-Hsing, and 周家興. "The Closed-Loop Control for Dual-Output Buck-Boost Converter with Single Inductor." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/15494635684654828444.

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碩士<br>中華大學<br>電機工程學系碩士班<br>94<br>The inductors contain most volume and weight of a power supply. When designing a new electronic product with small volume, it is important to consider that how to design a power supply providing multiple voltage outputs with the smaller volume and light weight. Therefore, the number of inductorsmust be considered. This study develops the structure in which single inductor is used for dual-output buck-boost converter. Since the structure is PWM-switching nonlinear circuit, it is very difficult to analyze exactly. The study proposes a method that the PWM-switc

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Chang, Yi-Hsiang, and 張翊祥. "Dual-Path Frequency Compensation Technique and Soft-Start Mechanism for Integrated Buck Converters." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/67427471749515290963.

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碩士<br>國立臺灣科技大學<br>電子工程系<br>101<br>This thesis presents a dual-path frequency compensation technique and implements the technique in a dc-dc converter. This compensation technique uses two currents, whose directions are reversed, to simultaneously charge and discharge the compensation capacitor of the error amplifier. This method not only has capacitor multiplier effect, but also improves the transient response of the dc-dc converter. This thesis also introduces a novel soft-start circuit that uses a signal to control a charging current value into the capacitor of the soft-start circuit. As a r

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Chen, Ci-Hao, and 陳琦澔. "Design and Implementation of Integrated Single Inductor Dual-Output Buck DC-DC Converter." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/78316321374232360660.

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碩士<br>國立高雄應用科技大學<br>電子工程系碩士班<br>103<br>This paper presents a design of single-inductor dual-output dc-dc buck converter using pulse width modulation technology. To reduce the cost and Electromagnetic interference, the design only uses one inductor and two dc voltage output are available. This regulator IC is fabricated in TSMC 0.35μm 2P4M 3.3V/5V Mixed Signal CMOS technology. The system level and circuit level are verified with MATLAB and HSPICE software, respectively. A soft start-up circuit and a zero current detection circuit are designed to avoid the excess large switching current at the s

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Hsi-JuiWang and 王璽瑞. "Low Cross Regulation Voltage-Mode Controlled Single-Inductor Dual-Outputs (SIDO) Buck Regulator." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/31393508813294669990.

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碩士<br>國立成功大學<br>電機工程學系碩博士班<br>100<br>A Phase Sequence Interchange (PSI) scheme which can provide low cross regulation for SIDO buck regulator is proposed. By applying the PSI scheme with the voltage-mode control, the SIDO buck regulator has simple circuit design, fixed frequency and low cross regulation characteristics. Compared to the same purpose of using two single-inductor single-output (SISO) voltage regulators, the SIDO voltage regulator has advantages of area efficiency, less usage of passive component and lower cost. However, because the two outputs of the SIDO regulator share the same

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Wu, Wen-Zhe, and 吳文哲. "Soft-Switching Technique in a Dual-Input Buck-SEPIC Power Converter with Fuzzy Controller." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/u65sh3.

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碩士<br>國立東華大學<br>電機工程學系<br>104<br>The objective of this thesis is to develop a dual-input soft-switching buck-SEPIC (single-ended primary-inductor converter) converter with fuzzy controller. To reduce the switching loss of power MOSFET switches, a zero voltage soft-switching technique is applied to the dual-input buck-SEPIC power converter. Effectively to manage the power flow from the sources to load, the fuzzy voltage controller is then developed. For experimental studies, a DSP (Model TMS320F28335) controller-based dual-input soft-switching buck-SEPIC converter was carried out. At last, ex

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LIN, TING-CHAO, and 林鼎超. "A High-Efficiency Buck Converter with Fast Transient Response and Smart Dual Switch Control." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/b7jt66.

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碩士<br>國立臺北大學<br>電機工程學系<br>105<br>As the development of the portable product market flourishing quickly, modularizing multiple function has become the mainstream. And this also made the power consumption higher, and shorter the battery life. However, portable devices stay in stand-by mode most of the time, through improving light – load efficiency of the converters is efficient to extend its’ battery life. To achieve the conversion efficiency in the wide-load range well, moreover, when in respond to dramatically change, enable to provide stable voltage rapidly. Therefore, fast transient respons

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Jhang, Jhe-Wei, and 張哲瑋. "Design of a Single-Inductor Dual-Output Buck-Boost Regulator with Reduced Electromagnetic Interference." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/63967501268130245302.

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碩士<br>國立臺灣海洋大學<br>電機工程學系<br>102<br>Today’s technology is developing very rapidly, especially the portable electronic products progressing very fast. Now the portable products get smaller and more powerful, various functional modules must be integrated. These functional modules will be required different voltages because of the different functions. Therefore, the corresponding power supply is a very important research topic. This thesis designs and implements a single-inductor dual-output Buck-Boost regulator using TSMC 0.35um Mixed-Signal 2P4M Polycide 3.3/5V process provided by National Chip

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Hsuan-JuChen and 陳玄儒. "A Three-Switch Single-Inductor Dual-Input Buck/Boost Converter for Light Energy Harvesting." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/99179920867488574710.

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碩士<br>國立成功大學<br>電機工程學系<br>103<br>The design and analysis of energy harvesting (EH) for consumer electronics such as wireless sensor networks (WSNs) is presented in this thesis. The system can be powered by ambient energy in conjunction with rechargeable batteries to achieve near-perpetual operation. One common solution is to harvest energy from ambient light through photovoltaic (PV) modules. In such a system, a battery acts as the backup source to supplement energy when the environment’s power provision is insufficient or when the WSN is active, and stores surplus energy for future use when t

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Chuang, Sheng-Kai, and 莊勝凱. "Implementation of Digital PWM Control with Dual-Regulating Mechanism for DC-DC Buck Converter." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/44679776812028994554.

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碩士<br>輔仁大學<br>電子工程學系<br>96<br>With the proliferation of information technologies, the technology progress of power transistors, controller IC’s and computers, the low-power consumption electronic technology and it’s the applications also rapidly expands, which also pushes reduced supply voltage circuit design techniques to be employed and makes the portable multimedia and computers feasible. In this thesis, we investigate a novel dual-regulating mechanism for dc-dc buck conversion, which employs an inverter array based analog-to-digital (A/D) converter and the system feedback error signal to p

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Teng, Ting-Hung, and 鄧鼎弘. "Dual Mode Control with Variable Frequency load following Control for High Performance Buck Converter." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/9cht76.

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碩士<br>國立臺灣科技大學<br>電子工程系<br>107<br>In order to improve the switching frequency under different output loads, this thesis proposes a buck converter using Fixed Off-time Control, and adding a variable frequency control with load and a peak voltage switching mechanism to improve the conversion efficiency. In general, the conversion efficiency is dominated by the switching loss at light load. If the power mosfet uses hard switching control, the switching loss will be large and conversion efficiency will be reduced.The peak voltage switching mechanism proposed in this paper can reduce the switching

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Cheng, Bo-Yin, and 鄭博尹. "A Dual-Mode Buck Converter with Low Switching Loss for Wide Input Voltage Range." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/dt8f46.

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碩士<br>國立臺灣大學<br>電子工程學研究所<br>107<br>The purpose of this thesis is to design a new off-time control method and apply it to a DC-DC buck converter. The off-time controlled circuit proposed in this thesis can make the DC-DC buck converter get the lower switching frequency for wide input voltage range. Thereby reducing the switching loss of the system to achieve higher efficiency. In addition, when the input voltage is fixed for different loads, a dual-mode design is also adopted. When the circuit is under heavy load, the circuit operates in continuous-conduction mode. When the circuit is under lig

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Shen, Chung-Jui, and 沈宗叡. "Design of a Current-Mode Single-Inductor Dual-Output Buck Regulator with High Switching Frequency." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/y9fp68.

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碩士<br>國立臺灣海洋大學<br>電機工程學系<br>103<br>In recent years, among the portable electronic products market, the growing demand for smart phone, domestic and foreign manufacturers integrating more modules, and the performance continuing to improve, which make the demand for energy source of mobile phones continues to increase. In order to increase the battery life in heavy load and extend the standby time in light load of products, there must be much stronger power management system to convert energy and achieve energy saving effect. 　　In this thesis, a single-inductor dual-output buck regulator is des

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Huang, Zi-Xuan, and 黃子亘. "Single – Inductor Dual – Output Buck Converter with Cross – Regulation Reduction and Enhanced Output Driving Capability." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/xkqbez.

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碩士<br>國立中央大學<br>電機工程學系<br>103<br>A single – inductor dual – output ( SIDO ) buck converter with Cross – Regulation Reduction and Enhanced Output Driving Capability has been presented in this thesis, which provides two voltage outputs 1 V and 1.2 V under 3.3 V supply voltage. Time – multiplexing control in continuous conduction mode has been used in this design, as a result, this circuit can be simpler for system analysis and support larger load current. To improve the cross – regulation, which has been discussed often in the SIDO converters, adaptive path selector and output current compensat

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Ai, Yi-An, and 艾益安. "A Dual-Mode Digital Buck Converter with Predetermined Pulse-Frequency Modulation for Photovoltaic Energy Harvesting." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/gandtz.

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碩士<br>國立交通大學<br>電子工程學系電子研究所<br>104<br>With the popularity of wearable products, photovoltaic energy harvesting is an attractive method to develop battery-free systems or prolong battery life, such as wireless sensors, biomedical electronics, and the internet of things (IoT). To sustain normal operation with a limited power budget, low-power digital circuits operating in the near/sub-threshold region are widely used in such applications. Therefore, the design of a low-voltage high efficiency buck converter which converts the harvested energy to the regulated output is dispensable. On the top o

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Yang, Cing-Wen, and 楊慶文. "Development of a High Efficiency Dual-Mode CMOS Switching Buck Regulator for Lithium Battery Applications." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/77884942203786057235.

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碩士<br>國立高雄應用科技大學<br>電子工程系碩士班<br>102<br>A high-efficiency dual-mode CMOS switching buck regulator for lithium battery applications is presented in this thesis. The designed regulator can attain high power conversion efficiency for both light and heavy loads. According to the system loading condition, either pulse width modulation (PWM) mode or pulse frequency modulation (PFM) mode will be chosen. The regulator operates in PWM mode for heavy load current and PFM mode for light load current. According to simulation results, we choose 150mA as a demarcation point of light load and heavy load. Acco

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Syu, Wei-Jheng, and 許偉正. "Linear Amplifier Powered by Adjustable Dual Buck Converter for 2-axis Planar Servo Motor Driver." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/10538703576497552828.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>103<br>The purpose of this thesis is to build a 2-axis planar motor driver by ajustable dual buck converter. This circuit includes command, controller stage and power stage. According to mover demands moving speed,the sine wave signal adjusts the operation frequency. Linear amplifier of controller stage supplies output voltage to load voltage. The controller regulates load voltage to compare with sawtooth wave of contorller IC TL494 which produces sine pulse width modulation. Moreover,the controller provides SPWM to convert power stage for dual buck converter switche

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Cheng, Yu-Chieh, and 鄭宇傑. "Design of a Dual-mode Current-Control DC-DC Buck Converter with Wide Load Range." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/79018016720014160489.

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碩士<br>國立臺灣海洋大學<br>電機工程學系<br>105<br>With the rapid development of science and technology, the emergence of a variety of electronic products has changed the living habits of mankind. One of the most popular is the portable electronic products (such as smart phones, smart watches ...). From the past, people only use mobile phones to call, but now the phones can listen to music, take pictures, play games, check maps, etc., which play an indispensable role for human life. However, there are two main points for the development of these smart portable products: one is to have more and more features t

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Chen, Jia-En, and 陳嘉恩. "A High Power Efficiency Single Inductor Dual Output Switching Buck Converter with Minimized Cross Regulation." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/71458238323253735354.

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碩士<br>國立中正大學<br>電機工程研究所<br>101<br>In this paper, a single inductor dual output (SIDO) DC-DC converter is proposed, which features a high conversion efficiency, fast transient response, and minimized cross regulation. The proposed SIDO DC-DC converter comprises an error amplifier, a comparator, an inductor current sensing circuit, a current integrator, digital logics, and gate drive buffers. With the proposed current integrator, the system operating frequency can be adjusted according to the load condition thus minimizing the cross regulation. When the proposed SIDO DC-DC Converter is operated

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