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The minimum inductance (Lmin) for continuous current for a boost converter is given by (where D is duty ratio):

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MPPKVVCL Indore JE Electrical 21 August 2018 Official Paper
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  1. Lmin = 
  2. Lmin = 
  3. Lmin = 
  4. Lmin = 

Answer (Detailed Solution Below)

Option 1 : Lmin = 
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Detailed Solution

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Concept

At the edge of the continuous conduction, the value of inductance becomes minimum and such value of inductance is known as the critical inductance of the converter.

At the boundary of continuous conduction, IL(min) = 0

                ..........(i)

Calculation of ΔIL

When the switch is ON:

Putting this value in equation (i):

For the boost converter,  

For the boost converter,  

The value of the minimum inductance (Lmin) for continuous current for a boost converter is given by:

Lmin = 

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