Projects

GREEN ELECTRONICS

“GREEN ELECTRONICS – THE EVOLUTION OF LOW POWER VLSI DESIGN”           

 

INTRODUCTION:

             Electronics has made life easier for us. But the omnipresence of electronics in modern life has a seamy underside. Certain materials used in electronic products are toxic and pose a threat to the environment. The situation is becoming serious with the increasing use of electronics.

             The tremendous growth in battery - operated and power-sensitive applications has created a global demand for low-power semiconductors. Today’s power-sensitive designers face stricter system power limits, specifications, and standards that put a cap on the total power consumed by the system. Simultaneously, for these applications, the demand for increased features, performance, and complexity continues to grow, but at the expense of power.

          The art of power analysis and optimization of integrated circuits are used to be a narrow speciality in analog circuit design. The newer generations of semiconductor processing technologies present more stringent requirements to the power dissipation of digital chips due to increased device density, speed and complexity. In a VLSI chip electrical energy is converted into heat energy during operations. The rate at which the energy is taken from the source and converted into heat is the power dissipation. Heat energy has to be dissipated from the chip to avoid and increase in chip temperature, which cause temporary or permanent circuit failure.

NEED FOR LOW POWER VLSI CHIPS:

            As the scale of integration improves, more transistors faster and smaller than their predecessors, are being packed into the chip, this leads to a steady growth of operating frequency and processing capacity per chip, resulting in increased power dissipation. The need for low power chips is the increased market demand for portable consumer electronics powered by batteries. The craving for smaller, lighter and more durable electronic products indirectly translates to low power requirements.

            High performance computing system characterized by large power dissipation also drives low power needs. Power dissipation has a direct impact on the packaging cost of the chip and the heat sink of a system.

AS ELECTRONIC ENGINEERS:

§  Intelligent Design

§  Innovative and Power Saving  concepts

§  Do a greater justice to environment.

Global Warming – Most drastic effects on Earth

Steps to reduce the effects:

  • —  Walk more, Drive less
  • —  Reduce, Re-Use, Recycle (RRR)
  • —  Turn OFF unnecessary electrical appliances.
  • —  Use renewable energy
  • —  Don’t use substances that harm nature
  • —  Plant Trees

"The best time to plant a tree was 20 years ago. But the second best time is today"



Tags :
3.5
Your rating: None Average: 3.5 (4 votes)