buck converter - duty cycle

Thread Starter

puzzle

Joined Oct 30, 2016
53
Can someone please explain me this sentence regarding buck (Step down) converters :
"If the duty cycle D is greater than 0.5, the core would not be completely demagnetized at the end of the off-period, and a DC magnetization of the core would build up, resulting in core saturation"

Are there any limitations on the Duty cycle in order to ensure proper functioning of the buck converter?

thanks
 
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