REDUCING POWER DISSIPATION IN SELF STARTING AND SELF CORRECTING COUNTER USING A LOOK-AHEAD CLOCK GATING
Journal Title: International Journal of Engineering Sciences & Research Technology - Year 0, Vol 4, Issue 10
Abstract
In this paper, a novel Self-starting and Self-correcting counter implemented with some techniques are presented to reduce the power consumption in sequential circuits. Clock gating is a predominant technique used to reduce unwanted switching of clock signals. Several clock gating techniques to reduce the dynamic power have been developed, of which Data driven method, Auto Gated flip-flop and LACG are predominant. In General way design of Self-starting and Self-correcting counter, it has unfortunately leaves the majority of the clock pulses driving the flipflops redundant. Data-driven gating aims to disable these and yields higher power saving, but its depends on which FFs should be placed in a group to maximize power reduction. We propose a practical solution based on the toggling activity correlations of FFs and their physical position proximity constraints in the layout and application dependent. The Power consumption of Auto Gated flip-flop is significantly lower than that conventional flip-flops. By using Auto Gated flip-flop, we can replace conventional FFs in Self-starting and Self-correcting counter to achieve reduction of power dissipation. A third method called Look-Ahead Clock Gating (LACG), which combines above two techniques. LACG computes the clock enabling signals of each FF one cycle ahead of time, based on the present cycle data of those FFs on which it depends. It avoids the tight timing constraints of AGFF and data-driven by allotting a full clock cycle for the computation of the enabling signals and their propagation. Simulation results shows that the SSSC counter with the Look-Ahead Clock Gating technique reducing power dissipation on an average of 65.44% compared to the conventional SSSC counter and data-driven clock gating SSSC counter.
Authors and Affiliations
S. Madhana Mohan
Keywords
Related Articles
- EP ID EP143315
- DOI -
- Views 43
- Downloads 0
ANALYSING DIFFERENT GEOMETRIES OF MICRO HOTPLATES
During the last years, so called ‘Micro Hotplate’ has been developed in order to reduce the thermal mass of metal oxide gas sensor. Micro Hotplate consists of a thermally isolated stage with a heater structure, a temper...
SINGLE PHASE TO THREE PHASE POWER CONVERSION USING PWM TECHNIQUE
The power electronics device which converts DC power to AC power at required output voltage and frequency level is known as inverter. Multilevel inverter is to synthesize a near sinusoidal voltage from several...
IMPROVING THE LIFESPAN OF WIRELESS SENSOR NETWORKS VIA EFFICIENT CARRIER SENSING SCHEME-CSMA/SDF
Wireless Sensor Networks (WSNs) refers to a group of spatially dispersed and dedicated sensors for monitoring and recording the physical conditions of the environment like temperature, sound, pollution levels, humidity,...
MEASUREMENT OF INTERNAL CONVERSION COEFFICIENT Of 280kev γ – RAYS IN 203Hg
The measurement of the internal conversion coefficient of 280keV γ – ray in 203HG have been investigated by means of calibrated 2ʺ x 2ʺ NaI(Tl)(scintillation detector which is sodium iodide activated with smal...
CONTRAST ENHANCEMENT - BASED FORENSICS IN DIGITAL IMAGES
As a retouching manipulation, contrast enhancement is typically used to adjust the global brightness and contrast of digital images. In this paper, we propose two novel algorithms to detect the contrast...