It combines a rigorous development of the fundamental principles in each area with realworld examples of circuits and methods. The design is made of several big modules, including main charge pump module, band gap reference module, comparator module, oscillating module, control module, temperature protection module. Charge pumps offer highefficiency and compact solutions for applications with generally lowoutput current requirements. A charge pump is a kind of dc to dc converter that uses capacitors for energetic charge storage to raise or lower voltage. A transistorlevel circuit design of charge pump is introduced to drive the inertial device. Chapter three describes the design of the charge pump. A charge pump ic converts, and optionally regulates, voltages using switching technology and capacitiveenergy storage elements. The improved accurate low noise charge pump is shown in figure 2. Feng pan a critical reference designed to help practicing engineers meet one of the biggest challenges faced by the semiconductor industrythe increasing demand for efficient power conversion this book. Buy charge pump circuit design mcgrawhill elctronic.
Charge pump with vt cancellation through parallel structure. In 5, a feedback charge pump circuit that uses crosscoupled nmos switches are used to achieve a high boost ratio. Use features like bookmarks, note taking and highlighting while reading charge pump circuit design mcgrawhill elctronic engineering. Chargepump circuits are capable of high efficiencies, sometimes as high as 9095%, while being electrically simple circuits. Pdf study of recent charge pump circuits in phase locked. Hybrid electric vehicles provides an introduction to hybrid vehicles, which include purely electric, hybrid electric, hybrid hydraulic, fuel cell vehicles, plugin hybrid electric, and offroad hybrid vehicular systems. Charge pump circuits are commonly used in dram circuits to boost the word line signal to around 1.
Analysis and design of charge pumps for telecommunication. This book explains the different architectures and requirements for an efficient charge pump design and explains each step in detail. Feng pan is doing circuit design at sandisk corporation, where he is involved in defining the architecture and implementing charge pumps and related highvoltage circuits over several generations of nand flash memory products. The circuits nucleus module is adaptive charge pump 1x1. The output voltage is regulated for only one phase, and thus the output voltage ripple is large. It focuses on the power and propulsion systems for these vehicles, including issues related to power and energy management. The system includes a charge pump and a clock generator circuit. Cockcroftwalton charge pump the dickson charge pump 2 circuit is presented as an improvement of cockcroftwalton circuit. The modified fourstage positive charge pump with the fourphase clocks is shown in fig. A groundbreaking tool for circuit design engineers, charge pump circuit design is the first book to focus solely on the design and implementation of charge pumps used in eeproms, flash memory, white led drivers, and a myriad of other circuits finding mass applications in pdas, digital cameras, mp3 players, video recorders, cell phones, usb. Regulated charge pumps maintain a constant output with a varying voltage input. Charge pump circuit design feng pan author tapan samaddar author 2010 creators. Master of applied science guelph, ontario, canada c younis allasasmeh, august, 2011. Hybrid electric vehicles ebook by chris mi rakuten kobo.
The reason to add the transistor msi i 14 will be given below. The low static power and high conversion efficiency charge pump led driver circuit has been designed. Thus, the proposed method describes a new regulated charge pump circuit with dualphase regulation, which uses the new proposed output dualphase power stage. Charge pump ic design delivers an advanced systematic approach to charge pump circuit designfrom building blocks. Semantic scholar profile for feng pan, with 14 highly influential citations and 47 scientific research papers. Its filled with extra handson design information, potential pitfalls to avoid, and practical ideas harnessed. Chapter five describes the performance of the power supply circuit.
An overview, pylarinos and rogers, department of electrical and computer engineering university of toronto, available on the. Feng pan author tapan samaddar is a design engineer at sandisk corporation, where he leads the companys highvoltage circuit designs. Charge pump circuit design feng pan, tapan samaddar. Charge pump ic design introduced by mcgrawhill at isscc 2015. Lets assume that the charge pump must be capable of boosting a 3v supply voltage up to 60v output voltage under zeroload conditions. This topology exhibits improved switching speed, since all nodes are precharged to the resultant operating points andthe current is either steered to the output or to the. Pdf an evaluation of 2phase charge pump topologies with. A groundbreaking tool for circuit design engineers, charge pump circuit design is the first book to focus solely on the design and implementation of charge pumps used in eeproms, flash memory, white led drivers, and a myriad of other circuits finding mass applications in pdas, digital cameras, mp3 players, video recorders, cell phones, usb drives, and more. The fourphase positive charge pump the performance of the dickson charge pump is degraded due to threshold voltage and body effect. Negative feedback control, compensation, and stability are discussed and realworld design examples with schematics are included. The charge pump includes multiple output generation stages connected in series and a corresponding set of multiple gate stages conn.
Negative feedback control, compensation, and stability are discussed and realworld design examples with schematics are. Highefficiency charge pump led driver circuit design. More information on prior art charge pumps, such dickson type pumps and charge pumps generally, can be found, for example, in charge pump circuit design by pan and samaddar, mcgrawhill, 2006, or charge pumps. Pan is coauthor of charge pump circuit design, and has 51 granted patents related to power management, ldo, charge pump architectures, charge pump regulations and applications, adc design, opamp designs, and nandnor flash memory designs. The load is serviced entirely by the charge stored in the output capacitor. This book includes design information, potential pitfalls to avoid, and practical ideas harnessed from the authors experience designing charge pumps. The evaluated equations are doubler and makowski charge pump topologies in. Robert gregoire, member, ieee abstracta cmos switchedcapacitor reference is combined with a switchedcapacitor voltage doubling charge pump to produce a compact regulated 3. In the voltageinverting configuration, the charge pump capacitor is charged to the input voltage during the first half of the switching cycle. An analysis method is determined to evaluate the voltage gain, the output resistance and the.
Analysis, design, and implementation of integrated charge pumps with high performance a thesis. The discrete charge pump doubler was built using a tps61087 that switches at 1. Design stateoftheart charge pumpscharge pump ic design delivers an advanced systematic approach to charge pump circuit designfrom building blocks to final pump. Complements \charge pump circuit design\ also by micron nand designer feng pan. Jan 28, 2010 a charge pump circuit for generating an output voltage is described. Charge pump doubler circuit depending on the desired output voltage, a higher or lower duty cycle may likely be required. Complements charge pump circuit design also by micron nand designer feng pan. Us20090302930a1 charge pump with vt cancellation through. Charge pump circuit design explains the different architectures and requirements for an efficient charge pump design and explains the. Aug 10, 2010 feng pan is doing circuit design at sandisk corporation, where he is involved in defining the architecture and implementing charge pumps and related highvoltage circuits over several generations of nand flash memory products. Pdf charge pump circuits for lowvoltage applications. Pan previously held various senior management and leadership positions at sandisk and amd. Improving performance of nem relay logic circuits using. We will now illustrate the design of such a charge pump for a specific situation.
Download it once and read it on your kindle device, pc, phones or tablets. Design of charge pump for inertial sensor drive circuit. Analysis, design, and implementation of integrated charge pumps with high performance younis allasasmeh university of guelph, 2011 advisor. In charge phase, the switches on the lefthand side close, and the switches on the righthand side open. This results in higher output impedance as the number of stages increases. It is a singleended tristate charge pump with programmable gain. Complements \ charge pump circuit design \ also by micron nand designer feng pan. Chapter four describes the layout of the printed circuit board and the experimental results. The plot on the top uses charge pump input voltage gains of one and a half as well as a gain of two, while the plot on the bottom only has a gain of two. Lock time, phase noise, lock range and reference spur of each charge pump circuit are. Charge pump power conversion circuits for low power, low voltage and nonperiodic vibration harvester outputs by james john mccullagh a dissertation submitted in partial fulfillment.
Clock generator circuit for a charge pump sandisk technologies inc. Charge pumps are finding increased attention and diversified usage in the new era of nanometergeneration chips used in different systems. A compact switchedcapacitor regulated charge pump power supply b. Fully integrated dickson charge pumps with optimized power. This paper introduces a use of special design mems as a charge pump circuit, replacing the gaas fet switch with mems switch. Dickson charge pump with an arbitrary number of stages is presented. Figure 2 illustrates that in charge phase, both flying capacitors are charged in parallel. Professor stefano gregori this thesis presents the design of new integrated charge pumps with high performance. I strongly recommend this book to students and expert designers in the analogmixedsignal ic design field.
Pan, feng subjects onchip charge pumps electrical engineering. Charge pump ic design delivers an advanced systematic approach to charge pump circuit designfrom building blocks to final pump. Charge pump circuit design by feng pan, 9780071470452, available at book depository with free delivery worldwide. Charge pump circuit design by feng pan overdrive rakuten. Feng pan is doing circuit design at sandisk corporation, where he is involved in defining the architecture and implementing charge pumps and related. Charge pump circuit design mcgrawhill elctronic engineering kindle edition by pan, feng, samaddar, tapan. One stage of the charge pump consists of a storage. Digital systems engineering presents a comprehensive treatment of these topics.
Dec 10, 2009 more information on prior art charge pumps, such dickson type pumps and charge pumps generally, can be found, for example, in charge pump circuit design by pan and samaddar, mcgrawhill, 2006, or charge pumps. This circuit only needs some external capacitors, and dont need inductor. Products purchased from third party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements included with the product. This paper presents a novel mems charge pump circuit design and simulation for pll applications. Charge pump power conversion circuits for low power, low. The diodes used in this application are the bav99, which have a forward voltage drop of 1 v at 50 ma. In the cockcroftwalton charge pump circuit, the coupling capacitors are connected in series. The forgotten converter 5 july 2015 in figure 7, the two plots highlight the efficiency gained by having the lower value gain available when operating at higher input voltages. Charge pump circuit design mcgrawhill elctronic engineering. A charge pump circuit for generating an output voltage is described.
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