Ans:
Step down chopper is the suitable chopper to decrease the output voltage.
- When CH is turned ON, Vs directly appears across the load as shown in figure.
So VO = VS as in fig(a).
- When CH is turned off, Vs is disconnected from the load. So output voltage
VO = 0 as in fig(b).
- Thus the average output voltage becomes lesser than the input voltage.
- When CH is turned ON, Vs directly appears across the load as shown in figure. So VO = VS as in fig(a).
- When CH is turned off, Vs is disconnected from the load. So output voltage VO = 0 as in fig(b).
- Thus the average output voltage becomes lesser than the input voltage.
Note: Mode Diagram is optional.