Clock gating
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The document discusses power consumption in microprocessors and techniques for power reduction. It notes that dynamic power, which scales with the square of the supply voltage and operating frequency, makes up the majority of total power consumption. Clock circuitry alone can account for 15-45% of total power. Clock gating and data gating are introduced as approaches to reduce unnecessary switching activity and clock distribution by powering down unused modules. An example of applying clock gating at the architectural level is given to turn off parts of a processor's decode, execute, and load/store units to achieve considerable power reduction of up to 25%.
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Altera trcak g
- The document discusses various techniques for reducing power consumption in FPGAs, including power analysis tools, power-driven synthesis and fitting, clock gating, using dedicated resources like DSP blocks and RAM blocks efficiently, and newer FPGA technologies that enable programmable power and lower voltages.
- Key technologies for reducing power mentioned include moving to smaller process nodes, programmable power technology which allows tiles to operate in high-speed or low-power mode, lower core voltages, more granular clock gating, and dynamic on-chip termination.
- Power analysis involves estimating power using tools like Early Power Estimator and PowerPlay Power Analyzer which require accurate toggle rate data and power models.
Area Efficient Pulsed Clock Generator Using Pulsed Latch Shift Register
The document describes a proposed area efficient pulsed clock generator using pulsed latch shift registers. Conventional shift registers use flip-flops which consume more power and area than latches. The proposed design uses pulsed latches instead of flip-flops to reduce power consumption and area. It solves the timing problem of using latches in shift registers by generating multiple non-overlapping delayed pulsed clock signals. Simulation results show the proposed shift register reduces power consumption by 27% and delay by 21% compared to a conventional flip-flop based shift register.
IRJET- A High Performance Parallel Architecture for Linear Feedback Shift Reg...
This document describes a proposed parallel architecture for linear feedback shift registers (LFSRs) to improve performance and reduce power consumption. The key points are:
1. A parallel LFSR architecture is proposed to generate multiple outputs simultaneously, reducing dynamic power compared to a conventional design.
2. Clock gating techniques like multiple and integrated clock gating are used to reduce gate count and dynamic power by disabling unnecessary clock signals.
3. The proposed parallel LFSR architecture with clock gating achieves substantial power reductions while simplifying the design process for single and multiple output generation.
[IJET-V1I3P5] Authors :Dushyant Kumar Soni, Ashish Hiradhar
[IJET-V1I3P5] Authors :Dushyant Kumar Soni, Ashish HiradharIJET - International Journal of Engineering and Techniques
Clock gating is an effective method of reducing the dynamic power consumption in synchronous circuits.
One of the ways to achieve this is by masking the clock that goes to the idle portion of the circuit. In This paper
we will present a comparative analysis of existing clock gating techniques on some synchronous digital design
like ALU (Arithmetic logical unit) etc. Also a new clock gating technique that provides more immunity to the
existing problem in available technique. In new proposed clock gating the Gated Clock Generation Circuit is using
tri state buffer and Gated logic is used which is created by the combination of double gated (AND, OR, AND
logic gate) with bubbled input respectively. This circuit saves power even when Target device's clock is ON. All
experiments are done on Xilinx14.1 EDA tool. Mentor Graphics Model SIM. For power calculation we are using
XPOWER. Sparten-3 (90nm) FPGA platform is used for result and analysis. The proposed design will reduce the
hardware complexity with approximately 10-20%. Similar clock power complexity will reduce with 5-10%.
Keywords — Tri state buffer; VLSI; Xilinx; glitches; hazards;Sparten.Unit commitment
This document provides an overview of optimization techniques applied to solve the unit commitment problem for a 10 unit power system. It describes the objective function and constraints of the unit commitment problem formulation. It then briefly introduces several common optimization techniques used to solve unit commitment, including simulated annealing, harmony search, and multi-agent evolutionary programming incorporating a priority list. The document presents cost comparisons of applying different optimization techniques to the standard 10 unit test system, including tabular and graphical summaries of results from research papers. It concludes with references.
Doc speed control of a dc motor using micro controller 8051
This document describes a project to control the speed of a DC motor using pulse width modulation (PWM) generated by a microcontroller. A group of four students developed the project under a professor's supervision. PWM pulses are generated by an 8051 microcontroller to vary the motor speed by changing the duty cycle. The project aims to provide a reliable and efficient method of DC motor speed control.
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Design & implementation of 16 bit low power ALU with clock gating
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[IJET-V1I3P5] Authors :Dushyant Kumar Soni, Ashish Hiradhar
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Doc speed control of a dc motor using micro controller 8051
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2:同时对留学生所学专业登记给予评定
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4:这个认证书并且可以归档倒地方
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Early Life and Backgrounds
Orpah Winfrey: From Humble Beginnings to Media Mogul
Orpah Winfrey, often known as Oprah due to a misspelling on her birth certificate. was born on January 29, 1954, in Kosciusko, Mississippi. Raised in poverty by her grandmother, Winfrey's early life was marked by hardship and adversity. Despite these challenges. she demonstrated a keen intellect and an early talent for public speaking.
Winfrey's journey to success began with a scholarship to Tennessee State University. where she studied communication. Her first job in media was as a co-anchor for the local evening news in Nashville. This role paved the way for her eventual transition to talk show hosting. where she found her true calling.
Dwayne Johnson: From Wrestling Royalty to Hollywood Superstar
Dwayne Johnson, also known by his ring name "The Rock," was born on May 2, 1972, in Hayward, California. He comes from a family of professional wrestlers, with both his father, Rocky Johnson. and his grandfather, Peter Maivia, being notable figures in the wrestling world. Johnson's early life was spent moving between New Zealand and the United States. experiencing a variety of cultural influences.
Before entering the world of professional wrestling. Johnson had aspirations of becoming a professional football player. He played college football at the University of Miami. where he was part of a national championship team. But, injuries curtailed his football career, leading him to follow in his family's footsteps and enter the wrestling ring.
Career Milestones
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Beyond her talk show, Winfrey expanded her empire to include the creation of Harpo Productions. a multimedia production company. She also launched "O, The Oprah Magazine" and OWN: Oprah Winfrey Network, further solidifying her status as a media mogul.
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Clock gating
- 7. Latch free clock gating
- 8. Latch based clock gating
- 12. Components - flip-flops, latches, ALU, adder, and shifter Functions - decode, execute, and load store unit Power Reduction Example
Editor's Notes
- "Clock Gating" An Effective Low-Power Technique
- "Clock Gating" An Effective Low-Power Technique