Configuration of DC Chopper

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

Configuration of DC Chopper (Types of DC Chopper)

There are following types of DC chopper according to output voltage and output current with respect to standard input DC voltage. 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.