LOW POWER DESIGN SPACE

 LOW POWER DESIGN SPACE

Three parts that we are able to perform low power techniques to cut back power dissipation

  • Voltages 
  • Physical Capacitance
  • Switching activity


SUPPLY VOLATGE REDUCTION
  • Voltage reduction offers an efficient means of power reduction
  • A factor of two reduction in supply voltage yields an element of 4 decreases in power consumption.
  • But the performance is additionally getting reduced.
  • To avoid the above stated problem, thresholding voltage should be scaled down.

PHYSICAL CAPACITANCE

  • Dynamic power consumption depends linearly on the physical capacitance being switched.
  • So minimizing capacitance offers another technique for minimizing power consumption.
  • The capacitor may be kept as small by
  • Minimum logic
  • Smaller devices
  • Fewer and shorter wires

SWITCHING ACTIVITY

  • There are two components to switching activity:
  • Which determines the common periodicity of information arrivals.
  • E  (sw) which determines what number transitions each arrival will generate.
  • Switching activity is reduced by 
  • Selecting proper algorithms architecture optimization,
  • Proper choice of logic topology.
  • Logic level optimization which results in less power.





Written by : Mavi kour

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