A Low Start up Voltage Charge Pump for Thermoelectric Energy Scavenging
|
|
- Lorraine Reynolds
- 6 years ago
- Views:
Transcription
1 A Low Start up Voltage harge Pump for Thermoelectric Energy Scavenging S. Abdelaziz, A. Emira, A. G. Radwan, A. N. Mohieldin, A. M. Soliman Faculty of Engineering, airo University Abstract In this paper, an ultra-low-voltage charge pump is presented. Two techniques are used to reduce required number of stages and improve power efficiency, namely clock boosting and V t cancellation. lock boosting is employed to increase the output voltage per stage resulting in lower number of stages, and hence smaller output resistance. V t cancellation is achieved by using an auxiliary circuit that enables the charge pump to operate at input voltages as low as 3mV. ompared to conventional charge pump techniques, the proposed technique is shown to offer higher power efficiency and voltage gain. The charge pump is designed using TSM.25µm MOS technology. I. INTRODUTION Thermoelectric generator (TEG) is a device that converts the temperature difference across it into electrical energy [1]. Due to its small size and working autonomous ability, the TEG device can be used in many portable applications such attachable medical devices, electronic wrist watches, self powered heat sensors and Blue tooth headsets. In certain applications, such as body area network, the temperature difference across the TEG is only a few degrees so the TEG s open-circuit voltage is in the range of millivolts [2]. To obtain a higher output voltage, a large number of TEG elements must be connected thermally in parallel, but electrically in series, resulting in larger and more expensive solution. Another practical alternative is use a low-start up voltage charge pump to boost the output voltage. harge pumps are widely used in this purpose to increase the TEG s output voltage to a suitable voltage that can supply the standard integrated circuit. In this paper, a low-start up voltage charge pump which can operate with input voltages as low as 3mV. This is achieved using special techniques such as clock boosting and V t cancellation. Section II describes old architectures used to design low voltage charge pumps.the proposed charge pump is presented in section III. Simulation results are presented in section IV. MD1 MD2 MD3 MD4 MD5 Figure 1. Dickson harge Pump f II. ONVENTIONAL ARHITETURES One of most commonly used voltage multipliers is Dickson harge pump [3] in which diode-connected NMOS is used as charge transfer device as shown in Fig. 1. The voltage gain of each stage in Dickson charge pump, which is defined as the difference between the output and input voltages of this stage, is given by: G v = V V tn (1) where V tn is the threshold voltage of the diode-connected NMOS modified by the body effect due to source voltage increasing at each stage. V is the voltage fluctuation at each pumping node and is given by I o V = V φ + s f ( + s ) where is the pumping capacitance, s is the parasitic capacitance, I o is the output current, V φ is the clock amplitude and f is the clock frequency. As noticed from (2), at no D load current and if s is small enough then V V φ =. According to (1), V, and hence the minimum is set by the condition: (2) > V tn (3) to obtain a positive voltage step in each stage. Therefore, Dickson charge pump is not suitable for low-voltage applications. Many modifications to the Dickson charge pump have been proposed to enable it to operate at low input voltage levels [4, 5]. In [4] for example, the diode voltage drop is eliminated by using charge transfer switch (TS) in parallel with the diode connected device in order to improve the performance in low voltage applications. Static and dynamic TS techniques have been proposed in [4]. TS is used instead of the diodes to transfer the charge between nodes. While the diodes are used only for setting up the initial voltage at each pumping node. The steady state voltage pumping gain per stage can be now expressed as G v = V (4) As shown in Fig. 2, static TS technique uses the next stage higher voltage as a static control for the TS s. The operation is as follows, when φ 1 is high and φ 2 is low, MD2 will be /11/$ IEEE 71
2 V1+ΔV V2+ΔV V2 V3+ΔV V3 V1 MD1 (1) (2) (3) MD2 MD3 MD4 MDO f 1 2 M M 2 V 1 MS1 MS2 MS3 MS4 MD5 V out M 1 2 M 3 V Figure 2. Static TS harge Pump turned ON to set the initial voltage at node 2. The gate-tosource voltage of MS2 is 2 V, if 2 V > V tn then MS2 is ON where V tn is the threshold voltage of NMOS. In the next half cycle, φ 1 is low and φ 2 is high, MD2 will be turned OFF and the gate-to-source voltage of MS2 is 2 V. MS2 will be turned OFF only if 2 V < V tn which is not valid. Although stat is TS achieves higher gain than Dickson as indicated in equation (4), it suffers from reverse charge sharing problem due to incompletely turning OFF of MS2 and this will reduce the efficiency. MN1 V1 V1+ΔV MD1 MS1 MP1 V2+ΔV (1) (2) (3) MN2 MD2 MS2 MP2 V2 MN3 V3+ΔV MD3 MS3 MP3 V3 MN4 MD4 MS4 MP4 MDO f MD5 Figure 4. Pelliconi harge Pump and MS2 will be completely turned OFF. From (5), TS s are difficult to turn ON in low voltage environment. So dynamic TS technique is not effective at low voltage applications. The charge pump proposed by Pelliconi [5] is shown in Fig. 4. The clock amplitude is equal to. After the initial transient, when φ 1 is high and φ 2 is low, V is set to through M 1 and V 1 is charged to 2 and connected to V out through M 2. When φ 1 is low and φ 2 is high, V 1 is set to through M 1 and V is charged to 2 and connected to V out through M 3. So the output be always 2 after first stage. Pelliconi charge pump has many advantages such as eliminating body effect by connecting each device substrate to its source. It also uses very simple clocking scheme and it has no diode-connected MOS so higher gain is achieved (i.e. G v = V = ). The output voltage for N stages can be expressed as: V out = +N /( + s ) I out R out (7) Figure 3. Dynamic TS harge Pump where the output resistance R out can be expressed as: This problem is solved by using dynamic control of the TS s. As shown in Fig. 3, each TS is accompanied by an auxiliary circuit that contains NMOS and PMOS transistors so TS s can be turned off completely in the required period and can be turned on by next stage high voltage as in static TS technique. The operation of dynamic TS technique is explained as follows. When φ 1 is high and φ 2 is low, the source-to-gate voltage of MP2 is 2 V, the gate-to-source voltage of MN2 is zero, and MS2 will be turned ON if: 2 V > V tp &2 V > V tn (5) where V tp is the threshold voltage of PMOS and V tn is the threshold voltage of NMOS. when φ 2 is high and φ 1 is low, MP2 will be turned OFF and MN2 will turned ON If 2 V > V tn (6) R out = Nf/( + s ) (8) omparing with (1), it is clear that Pelliconi is more suitable for low voltage applications. But at very low voltage levels, cascading a large number of stages is necessary to obtain the desired output voltage. For example, to obtain an output voltage of 3.3V from a.3v input, at least nine stages are needed at ideal conditions as indicated in (7). From (8), larger number of stages results in higher output resistance and lower efficiency. III. PROPOSED HARGE PUMP The proposed charge pump is composed of three blocks, the charge pump core, the auxiliary circuit, and the clock booster. The charge pump is based on Pelliconi architecture but the PMOS transistors are replaced with diode-connected NMOS transistors due to their low V t compared to that of the 72
3 V11 MS11 MD11 Mn11 Mp11 22 V21 MS21 MD21 Mn21 Mp21 V31 1 Vin 1 2 V n1 M M 2 Mn12 Mp12 Mn22 Mp22 V V12 MS12 MD12 MD21 21 V22 MS22 MD22 V out M 1 V n2 M 3 Figure 5. Proposed harge Pump PMOS ones. The threshold of the low-v t NMOS transistor in the TSM.25µm MOS technology is slightly less than 2mV, while regular PMOS transistor threshold voltage is around.7v. The threshold voltage drop will limit the performance of Pelliconi especially at low input voltages. To eliminate this drop, an auxiliary circuit is added to each diodeconnected to make it more efficient in transferring charge. Fig. 5 shows two stages of the proposed charge pump with the auxiliary circuit added to each diode-connected and with a clock of 2 amplitude. The auxiliary circuit is composed of 2 NMOS transistors (Ms s and Mn s) and one PMOS (Mp s). The gate of Mp11 is connected to V 12 while its source is connected to V 21 and the gate of Mn11 is connected to V 22 and its source is connected to V 11. The operation of the auxiliary circuit is explained as follows. When φ 1 is low and φ 2 is high (2 ), the voltage at the nodesv 11,V 12,V 21,V 22 andv out1 are3,,5, 3 and 3, respectively. The source-to-gate voltage of Mp11 is 4 and the gate-to -source voltage of Ms11 is 2 so if: 4 > V tp &2 > V tn (9) Then MP11 is turned ON causing MS11 to turn ON also. Mn11 is turned OFF since its gate-to source voltage is zero. When φ 1 is high and φ 2 is low, the voltage at the nodes V 11, V 12, V 21, V 22 and V out1 are, 3, 3, 5 and 3, respectively. The source-to-gate voltage of Mp11 is zero so it will be turned OFF. The gate-to -source voltage of Mn11 is 4. So if: 4 > V tn (1) then Mn11 is turned ON causing MS11 to turned OFF. omparing (9) with (3), (5), the proposed charge pump is more suitable for low voltage applications. The last stage for the proposed charge pump is shown in Fig. 6. The controlling signal for the previous stage already exist at the nodes V n1 Figure 6. 2 Output stage of the proposed charge pump and V n2, so no special output stage is required as in static and dynamic TS techniques. The clock booster circuit shown in Fig. 7 is used to have a clock amplitude of 2. lock boosting main role is to have a swing of 2 at each node. Boosting the clock is a must for the auxiliary circuit to work and it also helps in improving the harge pump performance since using higher clock amplitude will decrease the stage loss due to the diode threshold voltage as mention in [6]. Also by clock boosting higher output voltage can be obtained with fewer stages and this will lead to smaller output equivalent resistance. As a result the efficiency will be improved,the operation of the booster is explained in [6]. IV. SIMULATION RESULTS Simulation is performed using TSM.25µm MOS technology in Spectre R to compare between Pelliconi (in which PMOS transistors are replaced by diode-connected NMOS as indicated in Fig. 8) and our proposed charge pump. To have a fair comparison, the same clock boosting scheme has been used for both circuits with the same value (25pF ) of pumping capacitors. All simulations are performed at a clock frequency of 1MHz. Fig. 9 shows comparison results of output voltage versus number of stages at of.3v and I o = 2.8µA. It is clear from the figure that the proposed charge pump offers about 1% higher output voltage at the same number of stages (e.g. for six stages, the output voltage of the proposed charge pump is 3.4V while it is 2.72V in boosted Pelliconi). The efficiency versus load resistance comparison is shown in Fig. 1. Simulation are done at =.3V and N = 6. The proposed pump maximum efficiency reaches 66% while it is 73
4 N 2b N 2 P 2 1 1b P 1 Figure 9. V out versus N, =.3V, and I o = 2.8µA N 1b N 1 K K b Figure 7. lock booster circuit M1 Vn11 M12 M2 Vn21 M22 M11 Vn12 M13 M21 Vn22 M Figure 1. Efficiency versus R load at =.3V and N = 6 Figure 8. Two-stages of Pelliconi charge pump with all NMOS about 57% in Pelliconi with clock boosting. The comparison results of the output voltage versus input voltage are given in Fig. 11. The proposed charge pump has higher gain than Pelliconi charge pump with clock boosting as shown in the figure. It is clear that the proposed charge pump has the best performance. V. ONLUSIONS A new charge pump is proposed which is suitable for operating at low voltage levels. Two techniques are utilized to improve the performance, namely clock boosting and V t cancellation. The proposed solution is analyzed and simulated against Pelliconi s charge pump. The power efficiency is shown to be 9% higher than Pelliconi s charge pump with the same clock boosting circuit and the output voltage is about 1% higher. The proposed charge pump can operate from input voltage as low as 3mV which makes it suitable for energy harvesting applications. Figure 11. V outversus V in at I o = 5µA and N = 6 REFERENES [1] L. Mateu,. odrea, N. Lucas, M. Pollak, and P. Spies, Energy harvesting for wireless communication systems using thermogenerators, in Proc. of the XXI onference 74
5 on Design of ircuits and Integrated Systems (DIS), Barcelona, Spain, 26. [2] V. Leonov, T. Torfs, P. Fiorini, and. Van Hoof, Thermoelectric converters of human warmth for self-powered wireless sensor nodes, Sensors Journal, IEEE, vol. 7, no. 5, pp , 27. [3] J. Dickson, On-chip high-voltage generation in mnos integrated circuits using an improved voltage multiplier technique, Solid-State ircuits, IEEE Journal of, vol. 11, no. 3, pp , Jun [4] J. Wu and K. hang, MOS charge pumps for low-voltage operation, Solid-State ircuits, IEEE Journal of, vol. 33, no. 4, pp , 22. [5] R. Pelliconi, D. Iezzi, A. Baroni, M. Pasotti, and P. Rolandi, Power efficient charge pump in deep submicron standard MOS technology, Solid-State ircuits, IEEE Journal of, vol. 38, no. 6, pp , 23. [6] F. Pan and T. Samaddar, harge pump circuit design. McGraw-Hill Professional,
Charge Pumps: An Overview
harge Pumps: An Overview Louie Pylarinos Edward S. Rogers Sr. Department of Electrical and omputer Engineering University of Toronto Abstract- In this paper we review the genesis of charge pump circuits,
More informationDESIGN AND ANALYSIS OF LOW POWER CHARGE PUMP CIRCUIT FOR PHASE-LOCKED LOOP
DESIGN AND ANALYSIS OF LOW POWER CHARGE PUMP CIRCUIT FOR PHASE-LOCKED LOOP 1 B. Praveen Kumar, 2 G.Rajarajeshwari, 3 J.Anu Infancia 1, 2, 3 PG students / ECE, SNS College of Technology, Coimbatore, (India)
More informationLOW VOLTAGE INTEGRATED CONVERTER FOR WASTE HEAT THEREMOELECTRIC HARVESTERS
Metrol. Meas. Syst., Vol. XIX (2012), No.1, pp. 159 168. METROLOGY AND MEASUREMENT SYSTEMS Index 330930, ISSN 0860-8229 www.metrology.pg.gda.pl LOW VOLTAGE INTEGRATED CONVERTER FOR WASTE HEAT THEREMOELECTRIC
More informationEnergy harvesting applications for Low Voltage Dynamic CTS CMOS Charge Pump Keshav Thakur 1, Mrs. Amandeep Kaur 2 1,2
Energy harvesting applications for Low Dynamic CTS CMOS Charge Pump Keshav Thakur 1, Mrs. Amandeep Kaur 2 1,2 Department of Electronics and communication Engineering, Punjabi University, Patiala, Punjab,
More informationDESIGN AND IMPLEMENTATION OF AN IMPROVED CHARGE PUMP USING VOLTAGE DOUBLER AS CLOCK SCHEME
380 DESIGN AND IMPLEMENTATION OF AN IMPROVED CHARGE PUMP USING VOLTAGE DOUBLER AS CLOCK SCHEME Tanu 1 M.E. Scholar, Electronics & Communication Engineering University Institute of Engineering, Punjab,
More informationA HIGH EFFICIENCY CHARGE PUMP FOR LOW VOLTAGE DEVICES
A HIGH EFFICIENCY CHARGE PUMP FOR LOW VOLTAGE DEVICES Aamna Anil 1 and Ravi Kumar Sharma 2 1 Department of Electronics and Communication Engineering Lovely Professional University, Jalandhar, Punjab, India
More informationDesign and Analysis of Energy Recovery Logic for Low Power Circuit Design
National onference on Advances in Engineering and Technology RESEARH ARTILE OPEN AESS Design and Analysis of Energy Recovery Logic for Low Power ircuit Design Munish Mittal*, Anil Khatak** *(Department
More informationDesign of Low Power CMOS Startup Charge Pump Based on Body Biasing Technique
Design of Low Power CMOS Startup Charge Pump Based on Body Biasing Technique Juliet Abraham 1, Dr. B. Paulchamy 2 1 PG Scholar, Hindusthan institute of Technology, coimbtore-32, India 2 Professor and HOD,
More informationNegative high voltage DC-DC converter using a New Cross-coupled Structure
Negative high voltage DC-DC converter using a New Cross-coupled Structure Jun Zhao 1, Kyung Ki Kim 2 and Yong-Bin Kim 3 1 Marvell Technology, USA 2 Department of Electronic Engineering, Daegu University,
More informationHigh Efficiency MOS Charge Pumps for Low-Voltage Operation Using Threshold-Voltage Cancellation Techniques for RFID and Sensor Network Applications
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-issn: 2278-1676,p-ISSN: 2320-3331, Volume 10, Issue 3 Ver. IV (May Jun. 2015), PP 57-62 www.iosrjournals.org High Efficiency MOS Charge
More informationA Novel High Efficient Six Stage Charge Pump
A Novel High Efficient Six Stage Charge Pump based PLL Ms. Monica.B.J.C (Student) Department of ECE (Applied Electronics), Dhanalakshmi Srinivasan college of Engineering, Coimbatore, India. Ms. Yamuna.J
More informationPMOS-based Integrated Charge Pumps with Extended Voltage Range in Standard CMOS Technology
PMOS-based Integrated Charge Pumps with Extended Voltage Range in Standard CMOS Technology by Jingqi Liu A Thesis presented to The University of Guelph In partial fulfillment of requirements for the degree
More informationIN the design of the fine comparator for a CMOS two-step flash A/D converter, the main design issues are offset cancelation
JOURNAL OF STELLAR EE315 CIRCUITS 1 A 60-MHz 150-µV Fully-Differential Comparator Erik P. Anderson and Jonathan S. Daniels (Invited Paper) Abstract The overall performance of two-step flash A/D converters
More informationSwitched version of the Cockcroft-Walton charge pump for driving capacitive loads
Switched version of the Cockcroft-Walton charge pump for driving capacitive loads DAVOR VINKO, TOMISLAV SVEDEK, TOMISLAV MATIC Department of Communications Faculty of Electrical Engineering J.J.Storssmayer
More informationLecture 16. Complementary metal oxide semiconductor (CMOS) CMOS 1-1
Lecture 16 Complementary metal oxide semiconductor (CMOS) CMOS 1-1 Outline Complementary metal oxide semiconductor (CMOS) Inverting circuit Properties Operating points Propagation delay Power dissipation
More informationIEEE JOURNAL OF SOLID-STATE CIRCUITS, VOL. 41, NO. 2, FEBRUARY A Regulated Charge Pump With Small Ripple Voltage and Fast Start-Up
IEEE JOURNAL OF SOLID-STATE CIRCUITS, VOL. 41, NO. 2, FEBRUARY 2006 425 A Regulated Charge Pump With Small Ripple Voltage and Fast Start-Up Jae-Youl Lee, Member, IEEE, Sung-Eun Kim, Student Member, IEEE,
More informationReduction of Peak Input Currents during Charge Pump Boosting in Monolithically Integrated High-Voltage Generators
Reduction of Peak Input Currents during Charge Pump Boosting in Monolithically Integrated High-Voltage Generators Jan Doutreloigne Abstract This paper describes two methods for the reduction of the peak
More informationA low-variation on-resistance CMOS sampling switch for high-speed high-performance applications
A low-variation on-resistance CMOS sampling switch for high-speed high-performance applications MohammadReza Asgari 1 and Omid Hashemipour 2a) 1 Microelectronic Lab, Shahid Beheshti University, G. C. Tehran,
More informationPower dissipation in CMOS
DC Current in For V IN < V TN, N O is cut off and I DD = 0. For V TN < V IN < V DD /2, N O is saturated. For V DD /2 < V IN < V DD +V TP, P O is saturated. For V IN > V DD + V TP, P O is cut off and I
More informationDESIGN AND SIMULATION OF A HIGH PERFORMANCE CMOS VOLTAGE DOUBLERS USING CHARGE REUSE TECHNIQUE
Journal of Engineering Science and Technology Vol. 12, No. 12 (2017) 3344-3357 School of Engineering, Taylor s University DESIGN AND SIMULATION OF A HIGH PERFORMANCE CMOS VOLTAGE DOUBLERS USING CHARGE
More informationA new class AB folded-cascode operational amplifier
A new class AB folded-cascode operational amplifier Mohammad Yavari a) Integrated Circuits Design Laboratory, Department of Electrical Engineering, Amirkabir University of Technology, Tehran, Iran a) myavari@aut.ac.ir
More informationA New Capacitive Sensing Circuit using Modified Charge Transfer Scheme
78 Hyeopgoo eo : A NEW CAPACITIVE CIRCUIT USING MODIFIED CHARGE TRANSFER SCHEME A New Capacitive Sensing Circuit using Modified Charge Transfer Scheme Hyeopgoo eo, Member, KIMICS Abstract This paper proposes
More informationLow-Power Digital CMOS Design: A Survey
Low-Power Digital CMOS Design: A Survey Krister Landernäs June 4, 2005 Department of Computer Science and Electronics, Mälardalen University Abstract The aim of this document is to provide the reader with
More informationHIGH GAIN ENHANCED CMOS CHARGE PUMP WITH REDUCED LEAKAGE AND THRESHOLD VOLTAGE
HIGH GAIN ENHANCED CMOS CHARGE PUMP WITH REDUCED LEAKAGE AND THRESHOLD VOLTAGE C.Arul murugan 1 B.Banuselvasaraswathy 2 1 Assistant professor, Department of Electronics and Telecommunication Engineering,
More informationSub-Threshold Startup Charge Pump using Depletion MOSFET for a low-voltage Harvesting Application
Sub-Threshold Startup Charge Pump using Depletion MOSFET for a low-voltage Harvesting Application Gael Pillonnet, Thomas Martinez To cite this version: Gael Pillonnet, Thomas Martinez. Sub-Threshold Startup
More informationHybrid Forward and Backward Threshold- Compensated RF-DC Power Converter for RF Energy Harvesting
IEEE JOURNAL ON EMERGING AND SELECTED TOPICS IN CIRCUITS AND SYSTEMS, VOL. 4, NO. 3, SEPTEMBER 2014 335 Hybrid Forward and Backward Threshold- Compensated RF-DC Power Converter for RF Energy Harvesting
More informationLow Power, Wide Bandwidth Phase Locked Loop Design
Low Power, Wide Bandwidth Phase Locked Loop Design Hariprasath Venkatram and Taehwan Oh Abstract A low power wide bandwidth phase locked loop is presented in the paper. The phase frequency detector, charge
More informationPERFORMANCE ANALYSIS ON VARIOUS LOW POWER CMOS DIGITAL DESIGN TECHNIQUES
PERFORMANCE ANALYSIS ON VARIOUS LOW POWER CMOS DIGITAL DESIGN TECHNIQUES R. C Ismail, S. A. Z Murad and M. N. M Isa School of Microelectronic Engineering, Universiti Malaysia Perlis, Arau, Perlis, Malaysia
More informationAdvanced Operational Amplifiers
IsLab Analog Integrated Circuit Design OPA2-47 Advanced Operational Amplifiers כ Kyungpook National University IsLab Analog Integrated Circuit Design OPA2-1 Advanced Current Mirrors and Opamps Two-stage
More informationEECS 141: SPRING 98 FINAL
University of California College of Engineering Department of Electrical Engineering and Computer Science J. M. Rabaey 511 Cory Hall TuTh3:3-5pm e141@eecs EECS 141: SPRING 98 FINAL For all problems, you
More informationWITH the trend of integrating different modules on a
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II: EXPRESS BRIEFS, VOL. 64, NO. 7, JULY 2017 737 A Fully Integrated Multistage Cross-Coupled Voltage Multiplier With No Reversion Power Loss in a Standard CMOS
More informationActive Decap Design Considerations for Optimal Supply Noise Reduction
Active Decap Design Considerations for Optimal Supply Noise Reduction Xiongfei Meng and Resve Saleh Dept. of ECE, University of British Columbia, 356 Main Mall, Vancouver, BC, V6T Z4, Canada E-mail: {xmeng,
More informationANALYSIS, DESIGN, AND IMPLEMENTATION OF INTEGRATED CHARGE PUMPS WITH HIGH PERFORMANCE
ANALYSIS, DESIGN, AND IMPLEMENTATION OF INTEGRATED CHARGE PUMPS WITH HIGH PERFORMANCE A Thesis Presented to The Faculty of Graduate Studies of The University of Guelph by YOUNIS ALLASASMEH In partial fulfilment
More informationTHE BASIC BUILDING BLOCKS OF 1.8 GHZ PLL
THE BASIC BUILDING BLOCKS OF 1.8 GHZ PLL IN CMOS TECHNOLOGY L. Majer, M. Tomáška,V. Stopjaková, V. Nagy, and P. Malošek Department of Microelectronics, Slovak Technical University, Ilkovičova 3, Bratislava,
More informationNovel Buffer Design for Low Power and Less Delay in 45nm and 90nm Technology
Novel Buffer Design for Low Power and Less Delay in 45nm and 90nm Technology 1 Mahesha NB #1 #1 Lecturer Department of Electronics & Communication Engineering, Rai Technology University nbmahesh512@gmail.com
More informationNew Discrete Fibonacci Charge Pump Design, Evaluation and Measurement
MEAUREMEN CIENCE REIEW, 17, (2017), No. 3, 100-107 Journal homepage: http://www.degruyter.com/view/j/msr New Discrete Fibonacci Charge Pump Design, Evaluation and Measurement David Matoušek 1, Jiří Hospodka
More informationA Low-Noise Self-Calibrating Dynamic Comparator for High-Speed ADCs
1 A Low-Noise Self-Calibrating Dynamic Comparator for High-Speed ADCs Masaya Miyahara, Yusuke Asada, Daehwa Paik and Akira Matsuzawa Tokyo Institute of Technology, Japan Outline 2 Motivation The Calibration
More informationRyan Perigny A THESIS. submitted to. Oregon State University. in partial fulfillment of the requirements for the degree of.
Area Efficiency Improvement of CMOS Charge Pump Circuits by Ryan Perigny A THESIS submitted to Oregon State University in partial fulfillment of the requirements for the degree of Master of Science Completed
More informationCopyright notice. This paper is a Postprint version of the paper
Copyright notice This paper is a Postprint version of the paper Cavalheiro, D.; Moll, F.; Valtchev, S., Novel charge pump converter with Tunnel FET devices for ultra-low power energy harvesting sources,
More informationINVENTION DISCLOSURE- ELECTRONICS SUBJECT MATTER IMPEDANCE MATCHING ANTENNA-INTEGRATED HIGH-EFFICIENCY ENERGY HARVESTING CIRCUIT
INVENTION DISCLOSURE- ELECTRONICS SUBJECT MATTER IMPEDANCE MATCHING ANTENNA-INTEGRATED HIGH-EFFICIENCY ENERGY HARVESTING CIRCUIT ABSTRACT: This paper describes the design of a high-efficiency energy harvesting
More informationHighly-Efficient Low-Voltage-Operation Charge Pump Circuits Using Bootstrapped Gate Transfer Switches
Paper Highly-Efficient Low-Voltage-Operation Charge Pump Circuits Using Bootstrapped Gate Transfer Switches Non-member Hao San (Gunma University) Member Haruo Kobayashi (Gunma University) Non-member Takao
More informationECEN620: Network Theory Broadband Circuit Design Fall 2012
ECEN620: Network Theory Broadband Circuit Design Fall 2012 Lecture 11: Charge Pump Circuits Sam Palermo Analog & Mixed-Signal Center Texas A&M University Announcements & Agenda Exam 1 is on Wed. Oct 3
More informationA DC-DC Boost Converter in CMOS Technology for Power Harvesting Applications
1 A 0.5-2.4 DC-DC Boost Converter in CMOS Technology for Power Harvesting Applications Luís Filipe Esteves Machado Fontela Email: 128.fontela@gmail.com Instituto Superior Técnico, Lisboa, Portugal Novembro
More informationAnalog CMOS Interface Circuits for UMSI Chip of Environmental Monitoring Microsystem
Analog CMOS Interface Circuits for UMSI Chip of Environmental Monitoring Microsystem A report Submitted to Canopus Systems Inc. Zuhail Sainudeen and Navid Yazdi Arizona State University July 2001 1. Overview
More informationREDUCTION OF LEAKAGE CURRENT IN SIX STAGE CHARGE PUMP USING STACKING POWER GATING TECHNOLOGY
Int. J. Engg. Res. & Sci. & Tech. 2015 P Vimal and S Yuvaraj, 2015 Research Paper ISSN 2319-5991 www.ijerst.com Vol. 4, No. 2, May 2015 2015 IJERST. All Rights Reserved REDUCTION OF LEAKAGE CURRENT IN
More informationCHAPTER 3 PERFORMANCE OF A TWO INPUT NAND GATE USING SUBTHRESHOLD LEAKAGE CONTROL TECHNIQUES
CHAPTER 3 PERFORMANCE OF A TWO INPUT NAND GATE USING SUBTHRESHOLD LEAKAGE CONTROL TECHNIQUES 41 In this chapter, performance characteristics of a two input NAND gate using existing subthreshold leakage
More informationA HIGH FIGURE-OF-MERIT LOW PHASE NOISE 15-GHz CMOS VCO
82 Journal of Marine Science and Technology, Vol. 21, No. 1, pp. 82-86 (213) DOI: 1.6119/JMST-11-123-1 A HIGH FIGURE-OF-MERIT LOW PHASE NOISE 15-GHz MOS VO Yao-hian Lin, Mei-Ling Yeh, and hung-heng hang
More informationPramoda N V Department of Electronics and Communication Engineering, MCE Hassan Karnataka India
Advanced Low Power CMOS Design to Reduce Power Consumption in CMOS Circuit for VLSI Design Pramoda N V Department of Electronics and Communication Engineering, MCE Hassan Karnataka India Abstract: Low
More informationESD-Transient Detection Circuit with Equivalent Capacitance-Coupling Detection Mechanism and High Efficiency of Layout Area in a 65nm CMOS Technology
ESD-Transient Detection Circuit with Equivalent Capacitance-Coupling Detection Mechanism and High Efficiency of Layout Area in a 65nm CMOS Technology Chih-Ting Yeh (1, 2) and Ming-Dou Ker (1, 3) (1) Department
More informationPOWER-MANAGEMENT circuits are becoming more important
174 IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II: EXPRESS BRIEFS, VOL. 58, NO. 3, MARCH 2011 Dynamic Bias-Current Boosting Technique for Ultralow-Power Low-Dropout Regulator in Biomedical Applications
More informationPAPER High-Efficiency Charge-Pump Circuits with Large Current Output for Mobile Equipment Applications
1602 IEICE TRANS. ELECTRON., VOL.E84 C, NO.10 OCTOBER 2001 PAPER High-Efficiency Charge-Pump Circuits with Large Current Output for Mobile Equipment Applications Takao MYONO a), Regular Member, Akira UEMOTO,
More informationAn Improved Bandgap Reference (BGR) Circuit with Constant Voltage and Current Outputs
International Journal of Research in Engineering and Innovation Vol-1, Issue-6 (2017), 60-64 International Journal of Research in Engineering and Innovation (IJREI) journal home page: http://www.ijrei.com
More informationLOW POWER CMOS CELL STRUCTURES BASED ON ADIABATIC SWITCHING
LOW POWER CMOS CELL STRUCTURES BASED ON ADIABATIC SWITCHING Uday Kumar Rajak Electronics & Telecommunication Dept. Columbia Institute of Engineering and Technology,Raipur (India) ABSTRACT The dynamic power
More informationCMOS Instrumentation Amplifier with Offset Cancellation Circuitry for Biomedical Application
CMOS Instrumentation Amplifier with Offset Cancellation Circuitry for Biomedical Application Author Mohd-Yasin, Faisal, Yap, M., I Reaz, M. Published 2006 Conference Title 5th WSEAS Int. Conference on
More informationInvestigation on Performance of high speed CMOS Full adder Circuits
ISSN (O): 2349-7084 International Journal of Computer Engineering In Research Trends Available online at: www.ijcert.org Investigation on Performance of high speed CMOS Full adder Circuits 1 KATTUPALLI
More informationFTL Based Carry Look ahead Adder Design Using Floating Gates
0 International onference on ircuits, System and Simulation IPSIT vol.7 (0) (0) IASIT Press, Singapore FTL Based arry Look ahead Adder Design Using Floating Gates P.H.S.T.Murthy, K.haitanya, Malleswara
More informationAn 11 Bit Sub- Ranging SAR ADC with Input Signal Range of Twice Supply Voltage
D. Aksin, M.A. Al- Shyoukh, F. Maloberti: "An 11 Bit Sub-Ranging SAR ADC with Input Signal Range of Twice Supply Voltage"; IEEE International Symposium on Circuits and Systems, ISCAS 2007, New Orleans,
More informationAnalysis of 1=f Noise in CMOS Preamplifier With CDS Circuit
IEEE TRANSACTIONS ON NUCLEAR SCIENCE, VOL. 49, NO. 4, AUGUST 2002 1819 Analysis of 1=f Noise in CMOS Preamplifier With CDS Circuit Tae-Hoon Lee, Gyuseong Cho, Hee Joon Kim, Seung Wook Lee, Wanno Lee, and
More informationECE1352. Term Paper Low Voltage Phase-Locked Loop Design Technique
ECE1352 Term Paper Low Voltage Phase-Locked Loop Design Technique Name: Eric Hu Student Number: 982123400 Date: Nov. 14, 2002 Table of Contents Abstract pg. 04 Chapter 1 Introduction.. pg. 04 Chapter 2
More informationA New CMOS-DC/DC-Step-Up Converter for up to 2 mw Enduring Loads
A New CMOS-DC/DC-Step-Up Converter for up to mw Enduring Loads DANIEL BATAS, KLAUS SCHUMACHER Dept of Microelectronics University of Dortmund Dortmund GERMANY http://www-ims.e-technik.uni-dortmund.de Abstract:
More informationA Survey of the Low Power Design Techniques at the Circuit Level
A Survey of the Low Power Design Techniques at the Circuit Level Hari Krishna B Assistant Professor, Department of Electronics and Communication Engineering, Vagdevi Engineering College, Warangal, India
More informationDUAL-INPUT ENERGY HARVESTING INTERFACE FOR LOW-POWER SENSING SYSTEMS
DUAL-INPUT ENERGY HARVESTING INTERFACE FOR LOW-POWER SENSING SYSTEMS Eun-Jung Yoon Department of Electronics Engineering, Incheon National University 119 Academy-ro, Yonsu-gu, Incheon, Republic of Korea
More informationALTHOUGH zero-if and low-if architectures have been
IEEE JOURNAL OF SOLID-STATE CIRCUITS, VOL. 40, NO. 6, JUNE 2005 1249 A 110-MHz 84-dB CMOS Programmable Gain Amplifier With Integrated RSSI Function Chun-Pang Wu and Hen-Wai Tsao Abstract This paper describes
More informationCurrent Mirrors. Current Source and Sink, Small Signal and Large Signal Analysis of MOS. Knowledge of Various kinds of Current Mirrors
Motivation Current Mirrors Current sources have many important applications in analog design. For example, some digital-to-analog converters employ an array of current sources to produce an analog output
More informationCMOS 0.35 µm Low-Dropout Voltage Regulator using Differentiator Technique
CMOS 0.35 µm Low-Dropout Voltage Regulator using Differentiator Technique 1 Shailika Sharma, 2 Himani Mittal, 1.2 Electronics & Communication Department, 1,2 JSS Academy of Technical Education,Gr. Noida,
More informationA voltage-mode circuit structure using FinFet Transconductance Topology
A voltage-mode circuit structure using FinFet Transconductance Topology Ahmed Yahya Morsy Department of Electrical Engineering, Faculty of Engineering, Al-Azhar University, Nasr ity, airo-11371, Egypt
More informationCircuit level, 32 nm, 1-bit MOSSI-ULP adder: power, PDP and area efficient base cell for unsigned multiplier
LETTER IEICE Electronics Express, Vol.11, No.6, 1 7 Circuit level, 32 nm, 1-bit MOSSI-ULP adder: power, PDP and area efficient base cell for unsigned multiplier S. Vijayakumar 1a) and Reeba Korah 2b) 1
More information5μW-10mW Input Power Range Inductive Boost Converter for Indoor. Photovoltaic Energy Harvesting with Integrated Maximum Power Point
5μW-10mW Input Power Range Inductive Boost Converter for Indoor Photovoltaic Energy Harvesting with Integrated Maximum Power Point Tracking Algorithm Yifeng Qiu 1, Chris van Liempd 1, Bert Op het Veld
More informationA fully autonomous power management interface for frequency upconverting harvesters using load decoupling and inductor sharing
Journal of Physics: Conference Series PAPER OPEN ACCESS A fully autonomous power management interface for frequency upconverting harvesters using load decoupling and inductor sharing To cite this article:
More informationA 16Ω Audio Amplifier with 93.8 mw Peak loadpower and 1.43 quiscent power consumption
A 16Ω Audio Amplifier with 93.8 mw Peak loadpower and 1.43 quiscent power consumption IEEE Transactions on circuits and systems- Vol 59 No:3 March 2012 Abstract A class AB audio amplifier is used to drive
More informationA sub-0.3v highly efficient CMOS rectifier for energy harvesting applications
NOLTA, IEICE Paper A sub-0.3v highly efficient CMOS rectifier for energy harvesting applications Dan Niu 1a), Zhangcai Huang 2, Minglu Jiang 1, and Yasuaki Inoue 1 1 Graduate school of Information, Production
More informationHigh-efficiency Rectifier for Passive RF Energy Harvesting Devices. Yuchen Wang, Xiaohong Peng, Ligang Hou, Shuqin Geng
Advances in Engineering Research (AER), volume 82 2016 International Conference on Engineering and Advanced Technology (ICEAT-16) High-efficiency Rectifier for Passive RF Energy Harvesting Devices Yuchen
More informationCHAPTER 5 DESIGN AND ANALYSIS OF COMPLEMENTARY PASS- TRANSISTOR WITH ASYNCHRONOUS ADIABATIC LOGIC CIRCUITS
70 CHAPTER 5 DESIGN AND ANALYSIS OF COMPLEMENTARY PASS- TRANSISTOR WITH ASYNCHRONOUS ADIABATIC LOGIC CIRCUITS A novel approach of full adder and multipliers circuits using Complementary Pass Transistor
More informationDesign & Analysis of Low Power Full Adder
1174 Design & Analysis of Low Power Full Adder Sana Fazal 1, Mohd Ahmer 2 1 Electronics & communication Engineering Integral University, Lucknow 2 Electronics & communication Engineering Integral University,
More informationLow Power Realization of Subthreshold Digital Logic Circuits using Body Bias Technique
Indian Journal of Science and Technology, Vol 9(5), DOI: 1017485/ijst/2016/v9i5/87178, Februaru 2016 ISSN (Print) : 0974-6846 ISSN (Online) : 0974-5645 Low Power Realization of Subthreshold Digital Logic
More informationA Current Mirroring Integration Based Readout Circuit for High Performance Infrared FPA Applications
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II: ANALOG AND DIGITAL SIGNAL PROCESSING, VOL. 50, NO. 4, APRIL 2003 181 A Current Mirroring Integration Based Readout Circuit for High Performance Infrared FPA
More informationIntegrated Circuit Approach For Soft Switching In Boundary-Mode Buck Converter
Integrated Circuit Approach For oft witching In Boundary-Mode Buck Converter Chu-Yi Chiang Graduate Institute of Electronics Engineering Chern-Lin Chen Department of Electrical Engineering & Graduate Institute
More informationDESIGN OF A FULLY DIFFERENTIAL HIGH-SPEED HIGH-PRECISION AMPLIFIER
DESIGN OF A FULLY DIFFERENTIAL HIGH-SPEED HIGH-PRECISION AMPLIFIER Mayank Gupta mayank@ee.ucla.edu N. V. Girish envy@ee.ucla.edu Design I. Design II. University of California, Los Angeles EE215A Term Project
More informationLecture 10: Accelerometers (Part I)
Lecture 0: Accelerometers (Part I) ADXL 50 (Formerly the original ADXL 50) ENE 5400, Spring 2004 Outline Performance analysis Capacitive sensing Circuit architectures Circuit techniques for non-ideality
More informationNoise Tolerance Dynamic CMOS Logic Design with Current Mirror Circuit
International Journal of Electrical Engineering. ISSN 0974-2158 Volume 7, Number 1 (2014), pp. 77-81 International Research Publication House http://www.irphouse.com Noise Tolerance Dynamic CMOS Logic
More informationA low-voltage wide-input CMOS comparator for sensor application using back-gate technique
Biosensors and Bioelectronics 20 (2004) 53 59 A low-voltage wide-input CMOS comparator for sensor application using back-gate technique Yu-Cherng Hung, Bin-Da Liu Department of Electrical Engineering,
More informationDESIGN OF A NOVEL CURRENT BALANCED VOLTAGE CONTROLLED DELAY ELEMENT
DESIGN OF A NOVEL CURRENT BALANCED VOLTAGE CONTROLLED DELAY ELEMENT Pooja Saxena 1, Sudheer K. M 2, V. B. Chandratre 2 1 Homi Bhabha National Institute, Mumbai 400094 2 Electronics Division, Bhabha Atomic
More informationA design of 16-bit adiabatic Microprocessor core
194 A design of 16-bit adiabatic Microprocessor core Youngjoon Shin, Hanseung Lee, Yong Moon, and Chanho Lee Abstract A 16-bit adiabatic low-power Microprocessor core is designed. The processor consists
More informationA Low Power Single Ended Inductorless Wideband CMOS LNA with G m Enhancement and Noise Cancellation
2017 International Conference on Electronic, Control, Automation and Mechanical Engineering (ECAME 2017) ISBN: 978-1-60595-523-0 A Low Power Single Ended Inductorless Wideband CMOS LNA with G m Enhancement
More informationChapter 5. Operational Amplifiers and Source Followers. 5.1 Operational Amplifier
Chapter 5 Operational Amplifiers and Source Followers 5.1 Operational Amplifier In single ended operation the output is measured with respect to a fixed potential, usually ground, whereas in double-ended
More informationEEC 118 Lecture #12: Dynamic Logic
EEC 118 Lecture #12: Dynamic Logic Rajeevan Amirtharajah University of California, Davis Jeff Parkhurst Intel Corporation Outline Today: Alternative MOS Logic Styles Dynamic MOS Logic Circuits: Rabaey
More informationAn Oscillator Puzzle, An Experiment in Community Authoring
The Designer s Guide Community downloaded from An Oscillator Puzzle, An Experiment in Community Authoring Ken Kundert Designer s Guide Consulting, Inc. Version 2, 1 July 2004 Certain oscillators have been
More informationA MHz AC-DC Rectifier Circuit for Radio Frequency Energy Harvesting
A 9-24 MHz AC-DC Rectifier Circuit for Radio Frequency Energy Harvesting M.A. Rosli 1,*, S.A.Z. Murad 1, and R.C. Ismail 1 1 School of Microelectronic Engineering, Universiti Malaysia Perlis, Arau, Perlis,
More informationSINGLE-INDUCTOR MULTIPLE-OUTPUT DC-DC CONVERTERS
SINGLE-INDUCTOR MULTIPLE-OUTPUT DC-DC CONVERTERS Massimiliano Belloni, Edoardo Bonizzoni, Franco Maloberti University of Pavia Department of Electronics Via Ferrata, 1-27100 Pavia - ITALY [massimiliano.belloni,
More informationDesign and Implementation of less quiescent current, less dropout LDO Regulator in 90nm Technology Madhukumar A S #1, M.
Design and Implementation of less quiescent current, less dropout LDO Regulator in 90nm Technology Madhukumar A S #1, M.Nagabhushan #2 #1 M.Tech student, Dept. of ECE. M.S.R.I.T, Bangalore, INDIA #2 Asst.
More informationAn Ambient Energy Harvesting System for Passive RFID Applications
DEGREE PROJECT, IN ELECTRONIC AND COMPUTER SYSTEMS(IL12X), FIRST LEVEL STOCKHOLM, SWEDEN 215 An Ambient Energy Harvesting System for Passive RFID Applications WANG XIAOYU KTH ROYAL INSTITUTE OF TECHNOLOGY
More informationChapter 4: Differential Amplifiers
Chapter 4: Differential Amplifiers 4.1 Single-Ended and Differential Operation 4.2 Basic Differential Pair 4.3 Common-Mode Response 4.4 Differential Pair with MOS Loads 4.5 Gilbert Cell Single-Ended and
More informationHigh Voltage Operational Amplifiers in SOI Technology
High Voltage Operational Amplifiers in SOI Technology Kishore Penmetsa, Kenneth V. Noren, Herbert L. Hess and Kevin M. Buck Department of Electrical Engineering, University of Idaho Abstract This paper
More informationWireless Energy for Battery-less Sensors
Wireless Energy for Battery-less Sensors Hao Gao Mixed-Signal Microelectronics Outline System of Wireless Power Transfer (WPT) RF Wireless Power Transfer RF Wireless Power Transfer Ultra Low Power sions
More informationPower-Area trade-off for Different CMOS Design Technologies
Power-Area trade-off for Different CMOS Design Technologies Priyadarshini.V Department of ECE Sri Vishnu Engineering College for Women, Bhimavaram dpriya69@gmail.com Prof.G.R.L.V.N.Srinivasa Raju Head
More informationAn Efficient Design of CMOS based Differential LC and VCO for ISM and WI-FI Band of Applications
IJSTE - International Journal of Science Technology & Engineering Volume 2 Issue 10 April 2016 ISSN (online): 2349-784X An Efficient Design of CMOS based Differential LC and VCO for ISM and WI-FI Band
More informationECEN620: Network Theory Broadband Circuit Design Fall 2014
ECEN620: Network Theory Broadband Circuit Design Fall 2014 Lecture 8: Charge Pump Circuits Sam Palermo Analog & Mixed-Signal Center Texas A&M University Announcements & Agenda HW2 is due Oct 6 Exam 1 is
More informationA LOW POWER, HIGH DYNAMIC RANGE, BROADBAND VARIABLE GAIN AMPLIFIER FOR AN ULTRA WIDEBAND RECEIVER. A Thesis LIN CHEN
A LOW POWER, HIGH DYNAMIC RANGE, BROADBAND VARIABLE GAIN AMPLIFIER FOR AN ULTRA WIDEBAND RECEIVER A Thesis by LIN CHEN Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment
More informationGetting the Most From Your Portable DC/DC Converter: How To Maximize Output Current For Buck And Boost Circuits
Getting the Most From Your Portable DC/DC Converter: How To Maximize Output Current For Buck And Boost Circuits Upal Sengupta, Texas nstruments ABSTRACT Portable product design requires that power supply
More informationIntegrated, Low Voltage, Dynamically Adaptive Buck-Boost Boost Converter A Top-Down Design Approach
Integrated, Low Voltage, Dynamically Adaptive Buck-Boost Boost Converter A Top-Down Design Approach Georgia Tech Analog Consortium Biranchinath Sahu Advisor: Prof. Gabriel A. Rincón-Mora Analog Integrated
More information