How does a buck converter's output ripple waveform become sinusoidal

Status
Not open for further replies.
N

newbie_hs

Advanced Member level 4
Joined
Mar 4, 2023
Messages
112
Helped
1
Reputation
2
Reaction score
1
Trophy points
18
Activity points
886
Below image is from Fundamentals of Power Electronics.

The ripple component of the inductor current will be flowing through the capacitor as shown in the ic(t) graph. This one I understood.

May I know how the ripple waveform becomes sinusoidal? What is the mathematical equation behind it?
 

Sort by date Sort by votes
it's not completely sinusiodal - you are effectively filtering a square wave of voltage with an LC filter ( damped by load ).
 
Upvote 1 Downvote
Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…