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Switched Capacitor Dc Dc Converters
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Book Synopsis Advanced Multiphasing Switched-Capacitor DC-DC Converters by : Nicolas Butzen
Download or read book Advanced Multiphasing Switched-Capacitor DC-DC Converters written by Nicolas Butzen and published by Springer Nature. This book was released on 2020-07-03 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives a detailed analysis of switched-capacitor DC-DC converters that are entirely integrated on a single chip and establishes that these converters are mainly limited by the large parasitic coupling, the low capacitor energy density, and the fact that switched-capacitor converter topologies only have a fixed voltage conversion ratio. The authors introduce the concept of Advanced Multiphasing as a way to circumvent these limitations by having multiple out-of-phase parallel converter cores interact with each other to minimize capacitor charging losses, leading to several techniques that demonstrate record efficiency and power-density, and even a fundamentally new type of switched-capacitor topology that has a continuously-scalable conversion ratio. Provides single-source reference to the recently-developed Advanced Multiphasing concept; Enables greatly improved performance and capabilities in fully integrated switched-capacitor converters; Enables readers to design DC-DC converters, where multiple converter cores are put in parallel and actively interact with each other over several phases to improve their capabilities.
Book Synopsis Reconfigurable Switched-Capacitor Power Converters by : Dongsheng Ma
Download or read book Reconfigurable Switched-Capacitor Power Converters written by Dongsheng Ma and published by Springer Science & Business Media. This book was released on 2012-07-25 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides readers specializing in ultra-low power supply design for self-powered applications an invaluable reference on reconfigurable switched capacitor power converters. Readers will benefit from a comprehensive introduction to the design of robust power supplies for energy harvesting and self-power applications, focusing on the use of reconfigurable switched capacitor based DC-DC converters, which is ideal for such applications. Coverage includes all aspects of switched capacitor power supply designs, from fundamentals, to reconfigurable power stages, and sophisticated controller designs.
Book Synopsis A Design Methodology for Switched-capacitor DC-DC Converters by : Michael Douglas Seeman
Download or read book A Design Methodology for Switched-capacitor DC-DC Converters written by Michael Douglas Seeman and published by . This book was released on 2009 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Zero Current Switching Switched-capacitor Dc-dc Converters for Thermoelectric Generation Applications by : Dong Cao (University and college faculty member)
Download or read book Zero Current Switching Switched-capacitor Dc-dc Converters for Thermoelectric Generation Applications written by Dong Cao (University and college faculty member) and published by . This book was released on 2009 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Switched Capacitor DC-DC Converter by : Vincent Wai-Shan Ng
Download or read book Switched Capacitor DC-DC Converter written by Vincent Wai-Shan Ng and published by . This book was released on 2011 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: The traditional inductor-based buck converter has been the default design for switched-mode voltage regulators for decades. Switched capacitor (SC) dc-dc converters, on the other hand, have traditionally been used in low power (10mW) and low conversion ratio (
Book Synopsis Switched Capacitor-Based DC-DC Converter with Ultra-High Efficiency, Power Density and Voltage Regulation Capability by : Deepak Gunasekaran
Download or read book Switched Capacitor-Based DC-DC Converter with Ultra-High Efficiency, Power Density and Voltage Regulation Capability written by Deepak Gunasekaran and published by . This book was released on 2018 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Demystifying Switched Capacitor Circuits by : Mingliang (Michael) Liu
Download or read book Demystifying Switched Capacitor Circuits written by Mingliang (Michael) Liu and published by Elsevier. This book was released on 2006-06-12 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book helps engineers to grasp fundamental theories and design principles by presenting physical and intuitive explanations of switched-capacitor circuits. Numerous circuit examples are discussed and the author emphasizes the most important and fundamental principles involved in implementing state-of-the-art switched-capacitor circuits for analog signal processing and power management applications. Throughout the book, the author presents numerous step-by-step tutorials and gives practical design examples.While some quantitative analysis is necessary to understand underlying concepts, tedious mathematical equations and formal proofs are avoided. An intuitive appreciation for switched-capacitor circuits is achieved.Much of the existing information on contemporary switched-capacitor circuit applications is in the form of applications notes and data sheets for various switched-capacitor ICs. This book compiles such information in a single volume and coherently organizes and structures it.The author has his own website at www.mingliangliu.com * Step-by-step tutorials which emphasize the most fundamental principals of switched-capacitor circuits * Few tedious mathematical equations * The first easy-to-understand compilation on this subject--most information available is not very cohesive
Book Synopsis Switched Capacitor Dc-Dc Converter with Binary Resolution by : Alexander Kushnerov
Download or read book Switched Capacitor Dc-Dc Converter with Binary Resolution written by Alexander Kushnerov and published by LAP Lambert Academic Publishing. This book was released on 2012-06 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Switched-Capacitor Converters (SCC) suffer from a fundamental power loss deficiency which make their use in some applications prohibitive. The power loss is due to the inherent energy dissipation when SCC operate between or outside their output target voltages. This drawback was alleviated in this work by developing two new classes of SCC providing binary and arbitrary resolution of closely spaced target voltages. Special attention is paid to SCC topologies of binary resolution. Namely, SCC systems that can be configured to have a no-load output to input voltage ratio that is equal to any binary fraction for a given number of bits. To this end, we define a new number system and develop rules to translate these numbers into SCC hardware that follows the algebraic behavior. According to this approach, the flying capacitors are automatically kept charged to binary weighted voltages and consequently the resolution of the target voltages follows a binary number representation and can be made higher by increasing the number of capacitors (bits). The ability to increase the number of target voltages reduces the spacing between them and, consequently, increases the efficiency.
Book Synopsis Switched-Capacitor DC-DC Converters by : Gabor Temes
Download or read book Switched-Capacitor DC-DC Converters written by Gabor Temes and published by . This book was released on 2006-09-30 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inductorless dc-dc converters are used to provide the proper operating bias conditions for a range of circuits, including important applications: programming circuits for EEPROM non-volatile memory chips, low-voltage micro-power circuits, and circuits regulating the voltage provided by batteries needed in portable devices such as cellular phones.
Book Synopsis Self-oscillating Switched-capacitor DC-DC Converter by : Wanyeong Jung
Download or read book Self-oscillating Switched-capacitor DC-DC Converter written by Wanyeong Jung and published by . This book was released on 2020-12-28 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: A self-oscillating DC-DC converter structure is proposed in which an oscillator is completely internalized within the switched-capacitor network. This eliminates power overhead of clock generation and level shifting and enables higher efficiency at lower power levels. Voltage doublers are cascaded to form a complete energy harvester with a wide load range from 5 nW to 5 .mu.W and self-starting operation down to 140 mV. Because each doubler is self-oscillating, the frequency of each stage can be independently modulated, thereby optimizing the overall conversion efficiency.
Book Synopsis Analytical and Practical Analysis of Switched-capacitor DC-DC Converters by : Michael Douglas Seeman
Download or read book Analytical and Practical Analysis of Switched-capacitor DC-DC Converters written by Michael Douglas Seeman and published by . This book was released on 2006 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Highly-integrated switched-capacitor DC-DC converters by :
Download or read book Highly-integrated switched-capacitor DC-DC converters written by and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Techniques for Efficiency Enhancement in Switched-capacitor DC-DC Converters by : Xiwen Zhang
Download or read book Techniques for Efficiency Enhancement in Switched-capacitor DC-DC Converters written by Xiwen Zhang and published by . This book was released on 2011 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analysis and Design of Switched-capacitor DC-DC Converters with Discrete Event Models by : Danhui Li
Download or read book Analysis and Design of Switched-capacitor DC-DC Converters with Discrete Event Models written by Danhui Li and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis On-chip Buck-boost Switched-capacitor DC-DC Converter by : Chaohao Wang
Download or read book On-chip Buck-boost Switched-capacitor DC-DC Converter written by Chaohao Wang and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The increasing integration level of CMOS integrated circuits (ICs) poses significant challenges for the power delivery network. Multiple independent power domains, each of them individually adjustable, are desirable for complex ICs to optimize the tradeoff between performance and energy consumption. A two-stage power management system, in which a first-stage global converter with a large down conversion ratio is followed by multiple second-stage local regulators for different power domains, fits well in modern power delivery networks. The first stage can be built with conventional, fully optimized DC-DC converters, while the second stage requires flexible, high-density, and high-efficiency on-chip DC-DC converters. With the enhanced fabrication capability of high-density on-chip capacitors, the switched-capacitor (SC) DC-DC converter becomes a perfect candidate for these second-stage on-chip regulators. This dissertation presents the architecture, modeling and design techniques for the development of fully integrated on-chip SC DC-DC converters for the purpose of local regulation. The proposed converter can step up or down the voltage based on the output requirement and circuit performance. Using the unit cell array approach, conversion ratios of n/(n+1) with buck configurations and (n+1)/n with boost configurations are achievable when n cells are grouped as a single converter. Thus, adequate topologies exist to provide a large range of output voltage with high efficiency. A prototype chip with 204 unit cells and nine different finely spaced buck and boost topologies was designed and fabricated in a 45nm bulk CMOS technology. The input is 1V, and the output ranges from 0.58V to 1.3V. The SC converter achieves a peak efficiency of 82.2% at a maximum power density of 0.16W/mm2. Furthermore, the efficiency varies by only 4.2% over the output voltage range. A digital algorithm for closed loop control was implemented in a field-programmable gate array (FPGA) to demonstrate that performance regulation using this type of converter can match circuit performance requirements and compensate for operating conditions or process variations. This dissertation also projects the potential improvements in SC converters with more advanced technology nodes as well as capacitor density scaling, such as using special on-chip capacitor processes like Metal-Insulator-Metal (MIM) capacitors and deep trench capacitors.
Book Synopsis Integrated High-voltage Switched-capacitor DC-DC Converters by : Daniel Lutz
Download or read book Integrated High-voltage Switched-capacitor DC-DC Converters written by Daniel Lutz and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Switched-capacitor DC/DC Converter with Resonant Gate Drive by : Brede Arntzen
Download or read book Switched-capacitor DC/DC Converter with Resonant Gate Drive written by Brede Arntzen and published by . This book was released on 1996 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
