low power design through voltage scaling

... Chapter 2 Power Dissipation Source and Low Power Techniques 7 2.1 Static Power Dissipation 7 2.1.1 Static Power Dissipation Sources 7 2.1.2 Static Power Reduction Techniques 11 2.2 Dynamic Power ... of chip circuits C) Supply Voltage Scaling Designed to reduce dynamic power dissipation, voltage scaling technique is the most successful and widely used low-power technique However, as found, ... supply voltage scaling is useful to minimize the leakage current and hence reduce the static power dissipation Thus, although supply voltage scaling is originally designed to reduce dynamic power

Ngày tải lên: 11/09/2015, 16:05

... LOGIC UNIT DESIGN In this chapter, we describe the runtime operation, hardware design and software instruction scheduler of our low power 32-bit integer ALU, explaining how lower power consumption ... proposes a design for low power consumption ALU that exploits the benefits of offline software, which can work alone in delivering minimum power consumption or work alongside supply voltage reduction ... microprocessor, even when supply voltage is lowered to reduce its power consumption [2, 3] With this technique, a hardware voltage scheduler controls the supply voltage based on data from a feedback

Ngày tải lên: 16/09/2015, 14:04

... technologiescontinue to shrink TECHNOLOGY POWER CONSUMPTION Sub-Threshold Leakage Leakage Power (Normalized) Dynamic Power (Normalized) Core Voltage Trang 4WHAT IS LOW POWER?Low power means different things ... important for a designer to review a design for stray capacitance on digital switch-ing Refer to the “Hardware Design” section for more details on I/O low-power design techniques Operating voltage is ... most power and has the most control over the system power consumption As with all designs, it is important for the designer of a low-power embedded system to consider trade-offs between power

Ngày tải lên: 11/01/2016, 16:56

... chapter discusses design considerations for low-voltage low-power circuits The discussion starts from low-voltage circuit design issues Then it is followed by low-voltage circuit design techniques ... Trang 1LOW-VOLTAGE LOW-POWER CAPACITOR ΔΣ MODULATOR DESIGN SWITCHED-YANG ZHENGLIN NATIONAL UNIVERSITY OF SINGAPORE 2012 Trang 3LOW- VOLTAGE LOW-POWER CAPACITOR ΔΣ MODULATOR DESIGNSWITCHED-YANG ... techniques Collaborated with low-voltage application, low-power design technique is presented at the end Trang 27Chapter 4: This chapter presents a low-voltage low-power ΔΣ modulator for audio-band

Ngày tải lên: 09/09/2015, 18:49

... The nature of the low-power techniques and their impact on the energy delay product evolve while the designer goes through the proposed design flow The first steps of the design flow are generic ... on the total power consumption and the final throughput In this paper, we propose a dataflow oriented design proach for low-power block based video processing and ap-ply it to the design of a ... implementation Additionally, such design approach shortens the design time: it favors design reuse and allows structured verification and fast prototyping The proposed design flow (Figure 1) uses different

Ngày tải lên: 22/06/2014, 19:20

... integration of a low-power filtering coprocessor (tens of mW) based on a mod-ular architecture with automatic tuning and designed as an intellectual property (IP) macrocell to enable design reuse ... Researcher at Pisa University, working on algorithms and VLSI architecture design for multimedia and low-power CMOS design methodologies Luca Fanucci was born in Montecatini Terme, Italy, in ... identifying, realizing, and testing a design methodology based on systolic arrays For the past years he has been involved in the design of high-performance low-power digital systems Professor Terreni

Ngày tải lên: 23/06/2014, 01:20

... 0.002 / 32 Trang 19Low Power Design Reduce dynamic power Trang 20Low Power Design Reduce dynamic power – : clock gating, sleep mode Trang 21Low Power Design Reduce dynamic power – : clock ... static power Trang 22Low Power Design Reduce dynamic power – : clock gating, sleep mode – C: small transistors (esp on clock), short wires – VDD: lowest suitable voltage – f:  Reduce static power ... Reduce static power Trang 24Low Power Design Reduce dynamic power – : clock gating, sleep mode – C: small transistors (esp on clock), short wires – VDD: lowest suitable voltage – f: lowest suitable

Ngày tải lên: 01/07/2014, 11:20

... May 1973 [15] Eric R Fossum, Low Power Camera-on-a-Chip Using CMOS Active Pixel Sensor nology, IEEE Symposium on Low Power Electronics, pp 74-77, 1995 Trang 23Tech-Design Techniques for CMOS Image ... CCD 9 References 11 3 Design Techniques for CMOS Image Sensors 14 3.1 Front-end Design 14 3.2 Analog Signal Processor Design 20 3.3 Readout Amplier Design 22 3.4 Recent Performance ... 28 4.2 Modes of Operation 30 4.3 Power Consumption Control 33 5 Prototype Design and Experimental Results 35 5.1 Circuit Design 35 5.2 Layout Design 52 5.3 Experimental Results

Ngày tải lên: 28/08/2014, 02:29

... and consume low power Different sensor node designs have been proposed by researchers They can becategorized into designs built with commercial-off-the-shelf (COTS) componentsand designs built ... terms ofnetwork lifetime Moreover, the MAC layer should be of low complexity foreasy implementation, and consumes low power 3 The design of the physical and application layers are not the concerns ... activities,and should be battery-powered to work for days or even months for a single charge.This requires the sensor nodes to be in small size and consume low power In thisdissertation, the hardware

Ngày tải lên: 09/09/2015, 08:16

... consumes more power than inductive telemetry, high power consumption implies higher system cost, weight, and form factor, mainly due to the need of larger power capacity Example on low-power devices ... the PLL alone could result in tens of mW power consumption [40-42] By replacing power hungry PLL with ILO, this architecture shows greater promise with low power consumption and high energy efficiency ... solution to achieve low power dissipation and low phase noise The poor phase noise performance of a typical RO is improved as the ILRO phase noise characteristic tends to follow its injected reference

Ngày tải lên: 09/09/2015, 11:19

... 2.2 Custom Designed Transceivers using proprietary Standards 8 2.3 Summary 11 CHAPTER 3 SYSTEM LEVEL DESIGN OF THE ASYMMETRY TRANSCEIVER FOR LOW-POWER WSN 13 3.1 Background and Design Objective ... transformation Comprehensive design equations are derived to aid the PA design, characterization and optimization The proposed design facilitates fully on-chip solution for low-power Class-E PA Measurement ... equivalent to GMSK This allows for simple circuit architecture to save power [14, 31, 32] IEEE 802.15.4 standard is particularly popular for low data-rate and low-power applications, and its

Ngày tải lên: 09/09/2015, 18:49

... Trang 1THE DESIGN OF LOW POWER ULTRA- WIDEBAND TRANSCEIVERS Wang Lei NATIONAL UNIVERSITY OF SINGAPORE 2013 Trang 2THE DESIGN OF LOW POWER ULTRA- WIDEBAND TRANSCEIVERS ... Frequency (RF) integrated circuit design In addition to high throughput Wireless Local Area Networks (WLAN), attention is now also being focused on lower power and lower data rate, indoor communications ... of overcoming output power limitation is through on-chip or off-chip passive power combiners [5] However, they are generally lossy and incur additional area or cost Spatial power combination illustrated

Ngày tải lên: 10/09/2015, 09:21

... LPS Low is updated accordingly after Range update RangeLPS RangeMPSRange LowMPS LowLPS Low MPS LPS Figure 2-1: Coding interval subdivision of binary arithmetic coding Low Low Range Low Low ... as [Low, Low + Range) For each bin encoding, the interval is subdivided into two Trang 28Chapter 2 Review of Arithmetic Coding and CABAC subintervals [LowLPS, LowLPS + RangeLPS) and [LowMPS, LowMPS ... different design steps 139 Table 7-2: Encoding pipeline throughput, max frequency, area of CABAC encoders 143 Table 7-3: Gate-level power consumption (mW) of reported designs and proposed design

Ngày tải lên: 10/09/2015, 15:50

... Trang 1LOW POWER LOW NOISE ANALOG FRONT-END IC DESIGN FOR BIOMEDICAL SENSOR INTERFACE ZOU XIAODAN NATIONAL UNIVERSITY OF SINGAPORE 2010 Trang 2LOW POWER LOW NOISE ANALOG FRONT-END IC DESIGN ... optimum selection for low voltage operation The third contribution of this thesis is the low noise, low power front-end amplifiers design The method of achieving optimal noise to power trade-off is ... achieve high power efficiency The total power dissipation of the overall system should be within 1 µW under battery supply B To design each individual circuit block for the low noise, low power analog

Ngày tải lên: 11/09/2015, 10:07

... significant source of power consumption for central control block, should have the desirable characteristic of low-power consumption Hence, a technique for low power consumption design is needed ... performance analysis here Chapter 6 details a new design for low power asynchronous 8051 microcontroller which is designed for further reduce the power consumption of wearable ECG system in the ... consideration for easy wearability A highly integrated, low power chip with low noise amplifier, ADC and low pass filters were developed in- order to reduce the power consumption and the number of discrete

Ngày tải lên: 02/10/2015, 17:14

... prescribed by offset voltage Rate (MHz) Supply voltage (V) Process (um) Total power (mw) Analog power (mw) Preamplifier power (mw)* Table 2.1 Summary of 6 bit flash ADC designs *Calculated based ... frontend design and significantly less power consumption, comparing to more conventional designs This thesis is organized as follows Chapter 2 gives an overview of existing flash ADC designs, ... optimal or even viable solution for designs in deep sub micron technologies because of significantly reduced supply voltage and paramount need of low power design If one still attempts to achieve

Ngày tải lên: 04/10/2015, 10:26

... significant source of power consumption for central control block, should have the desirable characteristic of low-power consumption Hence, a technique for low power consumption design is needed ... performance analysis here Chapter 6 details a new design for low power asynchronous 8051 microcontroller which is designed for further reduce the power consumption of wearable ECG system in the ... consideration for easy wearability A highly integrated, low power chip with low noise amplifier, ADC and low pass filters were developed in- order to reduce the power consumption and the number of discrete

Ngày tải lên: 04/10/2015, 15:45

... detector 50 Fig 4.1: Low power burst mode UWB transceiver architecture 51 Fig 4.2: Measured result for low power burst mode UWB transceiver 52 Fig 4.3: Chip microphotograph of low power burst mode ... Thesis Title: Design of Low Power CMOS UWB Transceiver ICs Abstract Two non-coherent UWB transceivers for wireless sensor networks are proposed in this thesis, namely the low power burst mode ... to be designed and implemented In this thesis, the objective is to design a low power CMOS impulse radio UWB receiver (3-5 GHz) that can be implemented in a complete UWB transceiver for low data

Ngày tải lên: 04/10/2015, 15:45

... integrates a low-noise frontend amplifier with program-mable bandwidth and gain, and a 12-bit SAR ADC incorporating a dual-mode low-power clock module The ultra-low power consumption is achieved through ... Trang 1ULTRA-LOW-POWER SENSOR INTERFACE CIRCUITS FOR ECG ACQUISITION XU XIAOYUAN NATIONAL UNIVERSITY OF SINGAPORE 2010 Trang 2ULTRA-LOW-POWER SENSOR INTERFACE CIRCUITS ... when responding to close-to-DC power supply disturbance 51 4.15 Simplified circuit diagram of the OTA when responding to power supply dis-turbance 52 4.16 Simulated power gain and PSRR of the OTA

Ngày tải lên: 16/10/2015, 11:57

... circuits has recently gone in the direction of low-voltage (LV)‚ low-power (LP) design‚ especially in the environment ofportable systems where a low supply voltage‚ given by a single-cell battery‚ ... design oflow-voltage low-power (LV LP) analog integrated circuits, which are widelyutilized in portable-system applications [1,2,3] This has led to implement newdesign circuit strategies in low-cost ... Design of low-voltage low-power operational amplifier cell. Boston: Kluwer Academic Publishers, 1996. [2] W A Serdijin, A C van der Voerd, A H M van Roermund, J Davidse Design principle for low-voltage

Ngày tải lên: 06/08/2017, 08:45