12 March 2017

Chopper Configuration



The configuration of chopper is done according to direction of output voltage and output current.

Type A Chopper

  • The output voltage and current both are positive in the Type A chopper.
  •  It works in the first quadrant. 
  • The Type A chopper works as forward drive.

Type B Chopper

  • The output voltage is positive but output current negative in the Type B chopper. 
  • The power flow from load to supply side. It works in second quadrant.
  •  This Type of chopper is used in the regenerative braking of DC Motor.

Type C Chopper

  • The load current is either positive or negative but load voltage remains positive in the Type C chopper
  • This type of chopper works in first and second quadrant. 
  • The Type C chopper is combination of both Type A and Type B chopper.

Type D Chopper

  • The load voltage is either positive or negative but load current always positive in the Type D chopper. 
  • This chopper works in first as well as fourth quadrant.

Type E Chopper

  • The load voltage and load current are either positive or negative in the Type E chopper. 
  • This type of chopper works in all quadrants. It is a combination of two Type C quadrants.

Forward Drive

  • If the chopper works in first quadrant, it is called as forward drive because the output voltage and current both are positive in this quadrant.

Reverse Drive


  • If the chopper works in third quadrant, it is called as reverse drive because the output voltage and current both are negative in this quadrant. 
  • The DC motor works as DC generator in the second and fourth quadrant because the power flows from load to supply side in this quadrant.

chopper configuration




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