請用此 Handle URI 來引用此文件：
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/45126完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 陳秋麟(Chern-Lin Chen) | |
| dc.contributor.author | Chi-Hao Wu | en |
| dc.contributor.author | 吳繼浩 | zh_TW |
| dc.date.accessioned | 2021-06-15T04:05:30Z | - |
| dc.date.available | 2012-02-11 | |
| dc.date.copyright | 2010-02-11 | |
| dc.date.issued | 2010 | |
| dc.date.submitted | 2010-02-09 | |
| dc.identifier.citation | [1] J. A. Starzyk, Y. W. Jan, F. Qui, “A dc-dc charge pump design based on voltage doublers,” IEEE Trans. Circuit & Syst. I: Fundam. Theory Appl., vol. 48, pp.350-359, Mar. 2001.
[2] A. Umezawa, S. Atsumi, M. Kuriyama 'A 5-V-only operation 0.6um flash eeprom with row decoder scheme in triple-well structure', IEEE J. Solid State Circuits, Vol. 27, No. 11, pp. 1540-1546, November 1992. [3] T. Byunghak, P. Gray, ”A 10 b, 20 Msample/s, 35 mw pipeline A/D converter,”IEEE Journal of Solid-State Circuits, vol. 30, pp. 166-172, March 1995. [4] T. Tanzawa, S. Atsumi, “Optimization of word-line booster circuits for low-voltage flash memories, “IEEE J. Solid-State Circuits, vol.34, no. 8, pp. 1091-1098, Aug. 1999. [5] M. S. Makowski,” Realizability conditions and bounds on synthesis of switched-capacitor dc-dc voltage multiplier,” IEEE Trans. Circuit and System, vol. 44, no. 8, pp. 684, Aug. 1997. [6] D. Bingham et al., ”Integrated dual charge pump power supply and rs-232 transmitter/receiver,” U.S. Patent 4 897 774, Jan. 1990. [7] J. D. Cockroft and E. T. Walton, “Production of high velocity positive ions,” Proc. Roy. Soc., A, vol. 136, pp. 619-630, 1932 [8] J. F. Dickson, “On-chip high-voltage generation in nmos integrated circuits using an improved voltage multiplier technique,” IEEE J. Solid-State Circuits, vol. 1, pp. 374-378, Jun. 1976. [9] J. T. Wu, “ Mos charge pumps for low voltage operation,” IEEE J. Solid-State Circuits, vol. 33, pp. 592-597, April 1998. [10] K. Phang, D. Johns, “A 1V 1mw cmos front-end with on-chip dynamic gate biasing for a 75Mb/s optical receiver,” IEEE Int. Solid-State Circ. Conf. Dig. Tech. Papers, pp. 218-219 Feb. 2001 [11] I. Oota, F. Ueno, T. Inoue, “Analysis of switched-capacitor transformer with a large voltage-transformer-ratio and its applications,” Electron. Commun. Jpn., pt. 2, vol. 73, no. 1, pp. 85–96, 1990. [12] G. D. Cataldo, G. Palumbo, “Design of an Nth-order Dickson charge pump,” IEEE Trans. Circuits Syst. I: Fundam. Theory Appl., vol. 43, pp. 414-418, May 1996. [13] T. Kataoka, I. Fuchigami, “A 1.4V 60MHz access, 0.25um embedded flash eeprom,” IEEE Custom Integrated Circuits Conference, pp243-246, 1998. [14] P. E. Allen, D. R. Holberg, CMOS Analog Circuit Design, 2nd ed., New York: Oxford University Press, 2002, pp. 157. [15] MAX1574 Datasheet, Maxim Integrated Products, Sunnyvale, C A, 2003. [16] R. J, Baker, CMOS Circuit Design, Layout, and Simulation, 2nd ed., Piscataway, NJ: IEEE Press, 2005, pp.,645 [17] S. E. Kim, S. J. Song, J. K. Kim, S. Kim, J. Y. Lee, H. J. Yoo, “A small ripple regulated charge pump with automatic pumping control schemes,” ESSCIRC 2004, pp.383-386. [18] J. Y. Lee, S. E. Kim “A regulated charge pump with small ripple voltage and fast start up,” IEEE J. Solid State Circuits, vol.41, no. 2, Feb. 2006. [19] H. Lee, P. Mok, “ A sc dc-dc converter with pseudo-continuous output regulation using a three- stage switchable opamp”, ISSCC 2005, pp. 288-289 [20] B. R. Gregoir, “A compact switched capacitor regulated charge pump power supply,” IEEE J. Solid-State circuits, vol.74, no.8, pp.1944-1953, Aug. 2006. [21] O.C. Mak, Y. C. Wong, “ Step-up dc power supply based on a switched-capacitor circuit”, IEEE Trans. on Industrial Electronics, vol. 42, no.1, pp.90-97, Feb. 1995. [22] A. Rao, W. McIntyre, “Noise-shaping techniques applied to switched-capacitor voltage regulators,” IEEE J. Solid State Circuits, vol.40, no. 2, Feb. 2005. [23] C. C. Wang, J. C. Wu, “Efficiency improvement in charge pump circuit,” IEEE J. Solid-State circuits, vol.32, no. 6, pp. 852-860, Jun. 1997. [24] M. Bloch, “High efficiency charge pump circuit for negative high voltage generation at 2V supply voltage” The 24th European Solid-State Circuits Conference, pp.100 – 103, Sept. 1998. [25] K. H. Lee, etc., “Power-efficient series-charge parallel-discharge charge pump circuit for LED drive,” IEEE Power Electronics Specialists Conference, 2008, pp.2645-2649 [26] F. Su. “Component-efficient multiphase switched-capacitor dc–dc converter with configurable conversion ratios for lcd driver applications,” IEEE Trans. Circuit & Syst. II, vol. 55, pp. 753-757, Aug. 2008. [27] S. Shin, etc. “A high current driving charge pump with current regulation method,” IEEE Custom Integrated Circuits Conference, 2005, pp. 207-210. [28] G. Thiele, E. Bayer, “Current mode charge pump: topology, modeling and control” IEEE Power Electronics Specialists Conference, 2004, pp 3812-17. [29] G. Thiele, E. Bayer, “Voltage doubler/tripler current mode charge pump topology with simple gear box,” IEEE Power Electronics Specialists Conference, 2007, pp.2348-2352 [30] M. Chen, G. Rincon-Mora, “Accurate, compact, and power efficient Li-ion battery charger circuit,” IEEE Trans. Circuit & Syst. II, vol. 53, no. 11, pp. 1180-1184 Nov. 2006. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/45126 | - |
| dc.description.abstract | 高效率，低輸入電壓直流-直流轉換在可攜式設備的應用中是關鍵的電子裝置，電池的使用時間可因此而最佳化。在低電池電壓的彩色顯示行動裝置中，電荷幫浦電路已是最普遍且重要的直流-直流轉換器。
本論文介紹並實現一系列的調節式電荷幫浦設計技巧，使得行動裝置顯示器的電源系統具有高效率、高性能和小體積。論文描述包含行動顯示器之電源系統、個別控制方法、及各階層電路，並總結了高性能、高效率之調節式電荷幫浦設計之挑戰，且加以突破。而主要設計的目標專注於高效率、高性能、小體積、低成本使其適用於行動顯示器驅動之應用。 文中成功地展現出三種創新之調節式電荷幫浦電路包含了電壓及電流調節式設計技巧及量測結果，分別為 : 一、正及負六倍壓之高壓電荷幫浦及其電壓調節電路，可使用在薄膜電晶體液晶顯示器之閘極驅動電源，在行動裝置電池電壓範圍內並滿足驅動閘級所需負載下可使輸出電壓調節在+17.5V及-14.5V。新提出的九個相位控制法可減少一個外接幫浦電容(flying capacitor)使得系統成本降低。特別設計之比較器可使負壓調節方法比傳統方法來得具有更高的準確度、低晶片面積及功耗。 二、低輸出漣波設計於兩倍壓調節式電荷幫浦內可有效降低輸出漣波，故可用於液晶顯示器之源極驅動電路的電源供應。多相位操作方法可進一步降低輸出漣波至28mV在20mA負載、1μF之幫浦及負載電容之下其可輸出4.5V至5V電壓。此外更推導出此設計之回路方程式可用來預測漣波相對於負載之變化 三、提出高效率電流調節式電荷幫浦可使用於驅動白光發光二極體，新的架構可較傳統省去電流調節電路，進一步縮小晶片面積。 總體而言，論文提出之方法已證實可實現一個用於行動裝置顯示器驅動電路的電源系統之高效率及小體積的直流-直流轉換器。 | zh_TW |
| dc.description.abstract | Motivated by emerging portable applications that demand ultra-low-power hardware to maximize battery run-time, and high-efficiency low-voltage DC-DC conversion is presented as a key electrical device.
Charge pump circuit has been shown to be a critical DC-DC converter for low-battery voltage technology in mobile equipments with color displays. This thesis introduces and demonstrates an array of regulated charge pump design techniques which make the power system of display high efficiency, high performance, and compact. The primary design challenges to high-efficiency high-performance regulated charge pump are summarized. Design techniques at the power delivery system, individual control system, and circuit levels are described which help meet the stringent requirements imposed by the portable environment. The research is focused on portable display-driving applications, where small size, low cost, and high energy efficiency and performance are the primary design objectives. The design and measured results are reported on three regulated charge pumps which include voltage and current regulations, and successfully demonstrate the design techniques of this thesis. Description as follows: 1. High-voltage positive and negative charge pump as ± 6×VDD with voltage regulated to powering gate drivers of TFT-LCD drivers for their individual loads, can provide up to 17.5V and -14.5V in overall input voltage range of mobile equipments. Nine-phase clocks pumping is proposed to reduce one external flying capacitor for cost-efficient. Special design for the negative regulated scheme using differential difference comparator has been introduced, which increases accuracy of the negative regulated voltage, and reduces power consumption and chip area. 2. The lowest voltage-ripple design applied to a regulated voltage doubler is used to reduce the output ripple voltage for powering source drivers of TFT-LCD drivers. Multi-phase operation is proposed to minimize the output voltage-ripple, and this is with a 28 mV output voltage-ripple by up to 20mA load current. It delivers a regulated voltage from 4.5V to 5V with 1μF flying and load capacitors. Design equations and closed-form expressions for low ripple regulated charge pump are presented. 3. The high power-efficiency current-regulated charge pump is proposed to drive WLED for extension at low battery voltage and decreasing chip area. As the result, the approach presented in this thesis is evidently viable for realizing compact and highly efficient DC-DC converters for used as low battery-voltage power systems to powering display drivers in portable electronic applications. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-15T04:05:30Z (GMT). No. of bitstreams: 1 ntu-99-D94943003-1.pdf: 1973471 bytes, checksum: d05a371b55fb9b4081cc92f48509ce04 (MD5) Previous issue date: 2010 | en |
| dc.description.tableofcontents | ABSTRACT (Chinese)……………………………………………………i
ABSTRACT……………………………………………………iii TABLE OF CONTENTS…………………………………………………v LIST OF FIGURES…………………………………………………viii LIST OF TABLES………………………………xii Chapter 1. Introduction……………………………………………1 1.1 Background…………………………………………………1 1.2 Motivation……………………………………………………2 1.3 Design Objective………………………………………3 1.4 Thesis Organization…………………………………………4 Chapter 2. Charge Pump Circuit Fundamental……………………5 2.1 Dickson-Type Charge Pump Circuit………………………6 2.2 Two-Phase Charge Pump Circuit…………………………11 2.2.1 Clock Generator Circuit…………………………………13 2.2.2 A Two-Phase Charge Pump Implemented in CMOS Process and Analysis……………………………………………16 2.3 Multi-Phase Charge Pump Circuit………………………18 Chapter 3. Related Techniques in Regulated Charge Pump Design.20 3.1 Charge Pump with Regulator……………………………20 3.1.1 Voltage Regulation………………………………………20 3.1.2 Current Regulation………………………………………21 3.2 Comparator-Type Regulated Charge Pump………………24 3.3 The Other Regulated Schemes……………………………27 Chapter 4. Design of Voltage Regulated Charge Pump Circuit……30 4.1 Driving Portable TFT-LCD…………………………………31 4.1.1 Portable TFT-LCD Power System………………………31 4.1.2 Power for Gate Driving………………………………32 4.1.3 Power for Source Driving………………………………33 4.2 Multi-Phase Charge Pump Generating Positive and Negative High Voltages……………………………………………35 4.2.1 Circuit Implementation…………………………………37 4.2.2 Simulation Results………………………………………43 4.2.3 Measured Results…………………………………………46 4.3 Performance Enhancement Charge Pump as voltage doubler with Continuous Pumping Current Control.........51 4.3.1 Circuit Implementation…………………………………53 4.3.2 Circuit Analysis…………………………………………58 4.3.3 Simulation Results………………………………………62 4.3.4 Measured Results…………………………………………64 4.4 Summary……………………………………………67 Chapter 5. Design of Current Regulated Charge Pump Circuit…70 5.1 White LED Driving in a Portable Application………70 5.2 Novel High-Efficiency Current Regulated Charge Pump Design..............................................73 5.2.1 Voltage Boost by Charge Pump and Current Regulate.......73 5.2.2 Conventional Current-Regulation Method……………75 5.2.3 Circuit Implementation………………………………78 5.2.4 Operating Principles…………………………………83 5.2.5 Measured Results……………………………………86 5.2.6 Summary………………………………………………90 5.3 A Portable TFT-LCD Driver Integrated with a White LED Driver………………………………………………………………91 Chapter 6. Conclusions……………………………………………93 6.1 Conclusions…………………………………………………93 6.2 Summary of Research Contributions……………………94 6.3 Future Research Directions………………………………95 References………………………………………………………………97 LIST OF FIGURES Fig. 2.1. Cockcroft-Walton charge pump…………………………7 Fig. 2.2. Dickson charge pump………………………………………8 Fig. 2.3. Dickson charge pump using NMOS transistors in pumping stages…………9 Fig. 2.4. Voltage pumping……………………………………………9 Fig. 2.5. A four-stage CTS based charge pump…………………10 Fig. 2.6. Voltage pumping of CTS charge pump…………………10 Fig. 2.7. Cross couple charge pump………………………………11 Fig. 2.8. Two-phase charge pump as voltage doubler…………12 Fig. 2.9. Two-phase charge pumps (simply cascaded) ………13 Fig. 2.10. Makowski charge pumps………………………………13 Fig. 2.11. Two-phase non-overlapping clock generator………14 Fig. 2.12. Two-phase non-overlapping clock generator………14 Fig. 2.13. Circuit diagram of the level shifter……………15 Fig. 2.14. The signal shifting waveforms……………………15 Fig. 2.15. Circuit diagram of a CMOS dual charge with two-phase contro.l……18 Fig. 2.16. Multi-phase charge pumps…………………………19 Fig. 2.17. Design area as a function of the voltage gain…19 Fig. 3.1. Circuit diagram of a charge pump with voltage regulator............21 Fig. 3.2. Circuit diagram of a charge pump with current regulator as error amplifier type……………………………23 Fig. 3.3. Circuit diagram of a current regulator as current mirror type…………23 Fig. 3.4. Schematic of one-comparator regulated charge pump…………………25 Fig. 3.5. Operation of one-comparator regulated charge pump………………………25 Fig. 3.6. Schematic of multi-comparators regulated charge pump……………………27 Fig. 3.7. Schematic of switched-capacitor regulated charge pump……………………28 Fig. 3.8. Schematic of a regulated charge pump with PWM control…………………29 Fig. 4.1. A TFT-LCD panel………………………………………32 Fig. 4.2. Gate driving scheme of a TFT-LCD panel……………33 Fig. 4.3. Source and common driving scheme of a TFT-LCD panel………34 Fig. 4.4. The charge pump(voltage doubler) generates supply voltage VDD2(2×VDD)..35 Fig. 4.5. The charge pump generates supply voltage VCL(-VDD) .............35 Fig. 4.6. Conventional positive and negative charge pump circuit………………36 Fig. 4.7. Nine-phase high-voltage charge pump circuit……37 Fig. 4.8. Waveforms of V1 ~ V9 in the new proposed charge pump circuit. A period is positive phase and B period is negative phase…………….……………39 Fig. 4.9. Conventional clock blocking regulated schemes with comparators…………41 Fig. 4.10. Proposed negative regulated scheme………………42 Fig. 4.11. Circuit of differential difference comparator…42 Fig.4.12. The output waveforms of SPICE simulated (a) zoom out (b) zoom in………44 Fig. 4.13. The comparative results of SPICE simulated (a) VGH (b) VGL…………45 Fig. 4.14 Measurement results of output voltages (a) VGH (17.5V) (b) VGL (-14.5V) (c)VGH (10V) (d) VGL (-9.5V) …………………………………………………48 Fig. 4.15. Measurement results of output current versus output voltage with different flying capacitors…………49 Fig. 4.16. Measurement results of output voltage versus output current………49 Fig. 4.17. Measurement results of output voltage versus supply voltage………50 Fig. 4.18. Measurement results of output voltage and pumping clock………50 Fig. 4.19. Measurement results of power efficiency versus output current………51 Fig. 4.20. Proposed regulated charge pump as voltage doubler with automatic pumping current control………………54 Fig. 4.21. Schematic of non-overlap clock generation and its timing…………………55 Fig. 4.22. Error amplifier………………………………55 Fig. 4.23. Regulated pumping current buffer……………56 Fig. 4.24. The proposed multi-phase regulated charge pump.58 Fig. 4.25. (a) Equivalent schematic of proposed regulated charge pump in the pumping period and (b) Equivalent circuit in frequency domain………………61 Fig. 4.26. Comparison of analytical and SPICE simulation results………62 Fig.4.27. Simulated output ripple voltages at 10mA load current……………63 Fig. 4.28. Comparison of output ripple voltages at different output load currents……63 Fig. 4.29. Measurement of output ripple voltage at 5mA load current (1-flying) …65 Fig. 4.30. Measurement of output ripple voltage at 20mA load current (multi-phase)...65 Fig. 4.31. Measurement of output ripple voltage under different load currents (multi-phase) …………………………66 Fig. 4.32. Measured power efficiency with different output load……………66 Fig. 4.33. Conventional positive and negative charge pump circuit……69 Fig. 4.34. Photography of a mobile TFT-LCD driver includes the proposed power system (a) High-voltage positive and negative charge pump (b) Voltage doubler…69 Fig. 5.1. WLED driving using voltage source and resistor………………………72 Fig. 5.2. WLED driving using WLED driver with constant current source…………72 Fig. 5.3. Conventional constant current method with charge pump circuit………74 Fig. 5.4. Proposed current mode charge pump………………………………………75 Fig. 5.5. Current regulator using (a) Error amplifier (b) Simple current mirror (c) Regulated current mirror…………………………………………………………77 Fig. 5.6. Schematic of proposed current mode charge pump and timing diagram……80 Fig. 5.7. Circuit diagram of current amplifier………………………………………81 Fig. 5.8. Circuit diagram of error amplifier…………………………………………81 Fig. 5.9. Regulated pumping current buffer…………………………………………82 Fig. 5.10. Circuitry for non-overlapping clock generation……………………………82 Fig. 5.11. (a) Charging phase (b) Regulation phase…………………………………85 Fig. 5.12. Measured results of power efficiency for the proposed and conventional charge pump with the current regulators……………………………………………87 Fig. 5.13. Microphotograph of proposed current mode charge pump………………88 Fig. 5.14. Measured output voltage waveform with 20mA output current…………88 Fig. 5.15. Measured voltage of flying capacitor and clock duty……………………89 Fig. 5.16. Measurement of output current versus output load………………………..89 Fig. 5.17. Measurement of output current versus supply voltage with various output loads………………………………90 Fig. 5.18. The diagram of two integrated drivers for a mobile display………………92 Fig. 6.1. The conceptual schematic of an anti-phase error amplifier aid regulated charge pump…………………………96 LIST OF TABLE Table 4.1 Performance comparison………………………67 | |
| dc.language.iso | zh-TW | |
| dc.subject | 白光發光二極體 | zh_TW |
| dc.subject | 直流-直流轉換器 | zh_TW |
| dc.subject | 電荷幫浦 | zh_TW |
| dc.subject | 調節式 | zh_TW |
| dc.subject | 薄膜電晶體液晶顯示器 | zh_TW |
| dc.subject | Charge pump | en |
| dc.subject | DC-DC convert | en |
| dc.subject | Regulated | en |
| dc.subject | TFT-LCD | en |
| dc.subject | White LED | en |
| dc.title | 高效能之調節式電荷幫浦電路之設計 | zh_TW |
| dc.title | Design of High Performance Regulated Charge Pump Circuit | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 98-1 | |
| dc.description.degree | 博士 | |
| dc.contributor.oralexamcommittee | 陳建忠,黃育賢,涂榮杰,林宋宜,洪國強,李仲琪,廖元滄 | |
| dc.subject.keyword | 直流-直流轉換器,電荷幫浦,調節式,薄膜電晶體液晶顯示器,白光發光二極體, | zh_TW |
| dc.subject.keyword | DC-DC convert,Charge pump,Regulated,TFT-LCD,White LED, | en |
| dc.relation.page | 99 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2010-02-09 | |
| dc.contributor.author-college | 電機資訊學院 | zh_TW |
| dc.contributor.author-dept | 電子工程學研究所 | zh_TW |
| 顯示於系所單位： | 電子工程學研究所 | |
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