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.
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