How to plot the efficiency graph ?

Replies

• 

  narayana murthy

  as i know efficiency can be plotted between output and input
  so i think you can draw for output power to input power
• 

  Ramani Aswath

  TheSoyaSogiee

  My lecturer ask me to plot an efficiency graph but he never the information about the y and x axis. He mention that this is a test for us to learn. How can I plot the efficiency data ?

  Unless there is a variation of efficiency with some thing else there is nothing much too plot. Let us assume that the system has some internal power consumption, which varies with input power level. Then plotting the input power on the X - axis and the efficiency on the Y - axis will give some meaningful insight into the behaviour of the system.
  
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• 

  TheSoyaSogiee

  If let's say the below information was given.
  
  Load resistance : 470 ohm 470 ohm 470 ohm
  Input voltage : 9v 12v 14v
  Input current : 0.192A 0.161A 0.148A
  Input power : 1.728w 1.932w 2.072w
  
  Output voltage : 24.05v 24.05v 24.05v
  Output current : 0.051A 0.051A 0.051A
  Output Power : 1.224w 1.224w 1.224w
  Efficiency : 70.89% 63.45% 59.17%
  
  With these I just need to use Output Power as y-axis and Input power for x-axis ?
• 

  Ramani Aswath

  Did you visit the sites suggested and read the info at all? If you want to know the behaviour of the efficiency as a function of input power, what will be your independent variable? Which will be the dependent variable?
  
  It is customery to plot the independent variable on the X and the dependent variable on the Y.
  
  Think a little.