Power dissipation in electrical systems is caused by electric current working on conductors and causing their temperature to rise. Factors that influence power dissipation include performance, reliability, packaging, cost and portability. There are different types of power dissipation such as dynamic, short circuit, and leakage current. Minimizing power consumption is important for applications requiring portability or long battery life, while maintaining sufficient speed. Various CMOS circuit designs can optimize this tradeoff, including static, dynamic, and differential logic styles applied to the basic full adder circuit.
I have prepared it to create an understanding of delay modeling in VLSI.
Regards,
Vishal Sharma
Doctoral Research Scholar,
IIT Indore
vishalfzd@gmail.com
This presentation discusses the basics of Pass Transistor Logic, its advantages, limitation and finally implementation of Boolean functions/Combinational Logic circuits using Pass Transistor Logic.
I have prepared it to create an understanding of delay modeling in VLSI.
Regards,
Vishal Sharma
Doctoral Research Scholar,
IIT Indore
vishalfzd@gmail.com
This presentation discusses the basics of Pass Transistor Logic, its advantages, limitation and finally implementation of Boolean functions/Combinational Logic circuits using Pass Transistor Logic.
Reduced channel length cause departures from long channel behaviour as two-dimensional potential distribution and high electric fields give birth to Short channel effects.
This presentation has given a brief introduction and working of CMOS Logic Structures which includes MOS logic, CMOS logic, CMOS logic structure, CMOS complementary logic, pass transistor logic, bi CMOS logic, pseudo –nMOS logic, CMOS domino logic, Cascode Voltage Switch Logic(CVSL), clocked CMOS logic(c²mos), dynamic CMOS logic
Threshold Voltage & Channel Length ModulationBulbul Brahma
Design and Technology of Electronic Devices:
Review of microelectronic devices, introduction to MOS technology and related devices.
MOS transistor theory, scaling theory related to MOS circuits, short channel effect and its
consequences, narrow width effect, FN tunnelling, Double gate MOSFET, Cylindrical
MOSFET, Basic concept of CMOS circuits and logic design. Circuit characterization and
performance estimation, important issues in real devices. PE logic, Domino logic, Pseudo
N-MOS logic-dynamic CMOS and Clocking, layout design and stick diagram, CMOS
analog circuit design, CMOS design methods. Introduction to SOI, Multi layer circuit
design and 3D integration. CMOS processing technology: Crystal grown and Epitaxy, Film
formation, Lithography and Etching, Impurity doping, Integrated Devices.
Nowadays, power is main concern in case of any devices. At first, BJTs are the building blocks of any integrated circuit but today, due to high power consumption, we have switched to FET devices. In this project, we have discussed a lot about this BJT to FET transformation, why low power is important, we have depicted the components of power-loss and it's intricacies and we have tried to resolve this problem from gate level to system level.
Reduced channel length cause departures from long channel behaviour as two-dimensional potential distribution and high electric fields give birth to Short channel effects.
This presentation has given a brief introduction and working of CMOS Logic Structures which includes MOS logic, CMOS logic, CMOS logic structure, CMOS complementary logic, pass transistor logic, bi CMOS logic, pseudo –nMOS logic, CMOS domino logic, Cascode Voltage Switch Logic(CVSL), clocked CMOS logic(c²mos), dynamic CMOS logic
Threshold Voltage & Channel Length ModulationBulbul Brahma
Design and Technology of Electronic Devices:
Review of microelectronic devices, introduction to MOS technology and related devices.
MOS transistor theory, scaling theory related to MOS circuits, short channel effect and its
consequences, narrow width effect, FN tunnelling, Double gate MOSFET, Cylindrical
MOSFET, Basic concept of CMOS circuits and logic design. Circuit characterization and
performance estimation, important issues in real devices. PE logic, Domino logic, Pseudo
N-MOS logic-dynamic CMOS and Clocking, layout design and stick diagram, CMOS
analog circuit design, CMOS design methods. Introduction to SOI, Multi layer circuit
design and 3D integration. CMOS processing technology: Crystal grown and Epitaxy, Film
formation, Lithography and Etching, Impurity doping, Integrated Devices.
Nowadays, power is main concern in case of any devices. At first, BJTs are the building blocks of any integrated circuit but today, due to high power consumption, we have switched to FET devices. In this project, we have discussed a lot about this BJT to FET transformation, why low power is important, we have depicted the components of power-loss and it's intricacies and we have tried to resolve this problem from gate level to system level.
Semiconductor engineering is becoming more dynamic fiels since the technology scaling is taking place. Power reduction techniques are lucrative solutions to the performance, area and power trade off. Therefore Power reduction of VLSI designs are critical.
Low Power Electronic design is basically compromised with power aware digital system designs techniques. Especially VLSI power architecture with advanced power reduction techniques are discussed in details here
The low power has been the main concern for the VLSI industry with the technology scaling in CMOS process from 130 nm to 22nm. The presentation here gives a brief idea about the several low power VLSI techniques being used in VLSI circuits to reduce the power and delay. for any query feel free to visit us at: http://www.siliconmentor.com/
4 bit cmos full adder in submicron technology with low leakage and groun...shireesha pallepati
hai..this is my final year b.tech project on 4-bit CMOS full in sub micron technology for low lowkage and ground bounce noise reduction..feeling happy to share my presentation.
dedicated to my parents and faculty
Design of up converter at 2.4GHz using Analog VLSI with 22nm Technologyijsrd.com
Up converter has been designed in 0.18μm technology at 2.4GHz Frequency. I am trying to design up converter with 22nm technology. The problems related to Up converter is often difficult to solve, and may allow different solutions, so the choice is not always simple for those engineers and professionals who are not trained in Analog VLSI. The optimal solution of Problem of Power dissipation is usually a mix of solutions for a specific situation. In such a situation, it is necessary to identify that problem and propose different solutions. Initially the thesis gives a basic idea of up converter and also about CMOS. Later on it tries to simulate the basic gates. And a detailed insight is provided with the help of a simulation using Tspice Simulator. Power Dissipation in 0.18μm Technology using current mirror gilbert mixer is 4.5 mW and in 0.25μm Technology using current mirror gilbert mixer is 3.5mW and Power Dissipation in 0.18μm Technology is 8.1mW using Gilbert mixer. Now I am trying to design mixer with low power dissipation with 22nm technology which is recent technology.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
2. Power dissipation is defined as the measure
of rate at which the energy is dissipated or
lost from an electrical system. When an
electric current works on a conductor , the
internal energy of that conductor increases
causing its temperature to rise above the
surrounding temperature. This causes
energy to dissipate away from the
conductor into the surrounding through the
process of heat transfer.
3. The below factors should be considered
for estimating power dissipation
Performance
Reliability
Packaging
Cost
Portability
4. The various types of power dissipations are:
Dynamic power dissipation
Short circuit power dissipation
Leakage current
5.
6.
7. In this we have sandwiched a layer of thickness d of
insulating material between a metal plate and the semi-
conductor. Here we have assumed the semiconductor
to be of P-type
8. In an ideal MIS diode, the insulator has
an infinite resistance and does not have
either the mobile charge carriers or
charge centers.
The Fermi levels in the metal line up with
the Fermi level in the semiconductor.
The level in the metal itself is same
throughout.
This is called the Flat-Band condition
9.
10. When the voltage V is negative, the
holes in the P-Type semiconductor are
attracted to and accumulate at the
semi-conductor surface in contact with
the insulator.
This is called as Accumulation.
In the absence of the current flow, the
carriers in the semi-conductor are in the
state of equilibrium and the Fermi level
appears as a straight line.
11. The intrinsic Fermi level has a higher
value at the surface than at a point
deep in the substrate and the energy
levels Ec , Ev and Ei bend upward near
the surface.
The Fermi Level Ef in the semiconductor is
now -qV below the Fermi level in the
metal gate.
12.
13. When the applied voltage V is positive
but small, the holes in the P-Type
semiconductor are repelled away from
the surface and leave negatively
charged acceptor ions behind.
A depletion region, extending from the
surface into the semiconductor is
created .
This is the depletion condition.
Besides repelling the holes, the positive
voltage on the gate attracts electrons in
the semiconductor to the surface.
14. The surface is said to have begun to get
inverted form original P-Type to N-Type.
While V is small , the concentration of
holes is still larger than the concentration
of electrons.
This is the weak inversion condition.
The bands at this stage bend downward
near the suface.
15.
16. If the applied voltage is increased
sufficiently, the bands bend far enough
that level Ei at the surface crosses over to
the other side of level Ef.
It is brought about by the tendency of
carriers to occupy states with the lowest
total energy.
The kinetic energy of the electrons is zero
when they occupy a state at the bottom
edge of the conduction band.
In the present condition of inversion level
Ei bends to be closer to level Ec.
17. The electron density at the surface is still
smaller than the hole density deep inside
the semiconductor.
When V is increased to the extent that
the electron density at the surface ‘ns’
becomes greater than the hole density
in the bulk, onset of strong inversion is
said to take place.
18. Minimizing the power consumption of circuits is
important for a wide variety of applications
because of the increasing levels of integration
and the desire for portability. Since
performance is often limited by the arithmetic
components speed, it is also important to
maximize the speed.
The compromise between these two
conflicting demands of low power dissipation
and high speed can be accomplished by
selecting the optimum circuit architecture.
19. An important attribute of arithmetic
circuits for most applications is
maximizing speed (for general purpose
applications) or throughput (for signal
processing applications).
For a growing number of applications,
minimizing the power consumption is also
of great importance.
The most direct way to reduce the
power is to use CMOS circuits, which
generally dissipate less power.
20. For CMOS, the use of adders with
minimum power consumption is
attractive to increase battery life to
avoid local areas of high power
dissipation.
There are four factors which influence
the power dissipation of CMOS circuits:
Technology
Circuit design style
Architecture
Algorithm
21. There are a number of CMOS circuit
design styles, both static and dynamic in
nature.
The full Adder is the basis for almost
every arithmetic unit, therefore any
investigation into the suitability of circuit
design style for use in arithmetic units
must focus on the design of full adder.
22. Static CMOS Full Adder
The above figure shows a full adder
designed using static complementary
MOS logic employing both P and N type
logic.
23. The P- Logic tree(upper half of the
circuit) allows the output to be charged
high, while the N-tree (lower half of the
circuit) allows the output to be
discharged to ground.
Both the complemented and un-
complemented inputs are required and
both the ‘sum’ and ‘carry’ and the
‘complemented sum and carry’ are
produced.
The sum and carry functions are
computed independently of each other.
24. Full Adders constructed using NO RAce
dynamic CMOS logic(NORA) employ
alternating stages of P and N type logic
to form carry and sum outputs.
NO Race dynamic CMOS logic (NORA) Full Adder
NO Race dynamic CMOS logic (NORA)
Full Adder
25. The P-Type stage that forms the carry
output is dynamically pre-charged high
while the N-Type transistor that computes
the sum output is dynamically pre-
discharged low.
This pre-charging and pre-discharging
process requires a two-phase
complimentary clock.
NORA logic is unique because it doesn’t
require complemented inputs and
doesn’t compute both complemented
and un-complemented outputs.
27. Cascode Voltage Switch Logic (CVSL) is
a dynamic logic family. It requires a two-
phase clock.
The complement of the clock signal is
not necessary unlike NORA.
In CVSL Full Adder circuit , the outputs
and their complements are all pre-
charged high while the clock is low.
The complementary cascoded
differential N-Type transistor trees pull
either the output or its complement low.
The sum and carry are computed
independently of each other.
29. The DCVSL is formed by replacing the P-
type transistor in CVSL with a cross
coupled pair of P transistor yields a static
version of that logic.
When the output at one side gets pulled
low, then the opposite P transistor will be
turned on and the output on that side
will be pulled high.
31. CMOS non threshold logic employs the
same binary decision trees and cross
coupled P transistors as DCVS but an
extra N-Type transistors are added.
Two N-Type transistors are placed in
between the cross coupled P transistors
and the output in order to lower the
voltage level of the high output .
Another two N transistors are placed
between the N Transistors trees and
ground in order to raise the voltage level
of the low output.
33. ECDL is an extension to the DCVS Full
Adder.
ECDL uses a completion signal, DONE, to
pre-discharge the outputs of each
stage.
The DONE input signal goes low when
the previous stage has finished its
completion.
Enhancement source Coupled Logic is
another variation on the DCVS full adder.
.