Type -C chopper or Two-quadrant type A Chopper-Power Electronics
In this video we explained Type-C Classification of chopper based of quadrants
Please like share and Subscribe our Channel.For more engineering materials and concepts please comment below.
Chopper (Principle Operation)-Power Electronics-Classifications Voltage base (Step up & Step Down): • Chopper (Principle Operation)-Power Electr...
Chopper Classifications Based on Quadrants-Power Electronics: • Chopper Classifications Based on Quadrants...
Type A Chopper or First–Quadrant Chopper-Power electronics : • Type A Chopper or First–Quadrant Chopper-P...
Type C chopper is obtained by connecting type –A and type –B choppers in parallel. We will always get a positive output voltage V0 as the freewheeling diode FD is present across the load. When the chopper is on the freewheeling diode starts conducting and the output voltage v0 will be equal to Vs . The direction of the load current i0 will be reversed. The current i0 will be flowing towards the source and it will be positive regardless the chopper is on or the FD conducts. The load current will be negative if the chopper is or the diode D2 conducts. We can say the chopper and FD operate together as type-A chopper in first quadrant. In the second quadrant, the chopper and D2 will operate together as type –B chopper.
The average voltage will be always positive but the average load current might be positive or negative. The power flow may be life the first quadrant operation ie from source to load or from load to source like the second quadrant operation. The two choppers should not be turned on simultaneously as the combined action my cause a short circuit in supply lines. For regenerative braking and motoring these type of chopper configuration is used.