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Closed Loop Boost Converter: Equation Model



05 Sep 2013 (Updated )

The boost converter is modeled in simu-link with inductor current and capacitor voltage equations.

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This is simple model of closed loop Boost converter and Type III compensatory is employed to achieve the desired reference voltage. The converter is modeled using inductor current and capacitor voltage state equations. The model can be simulated in switching mode as well as linear mode.

Required Products Simulink
MATLAB release MATLAB 7.10 (R2010a)
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Comments and Ratings (8)
30 Oct 2014 Satish

Hi Karuna,

I appreciate your wonderful work on dc-dc converters but I dont get how did you developed the transfer function of the controller. And how do you consider the equations(poles and zeros) for type iii compensator. I already send you mail regarding my queries. Please take out little time to answer my quries..thank you

21 Jul 2014 Satish

Hi, I am sorry for my wrong email id. My typing mistake...
my email id is

I have sent a request mail to you..

20 Jul 2014 Karuna Mudliyar

@satish Your email ID is wrong I guess... I am getting delivery status failure notification..

18 Jul 2014 Satish

Hello, can you send me derived small signal ac modeling transfer function for dc-dc converter to my email id

please its urgent. thank you

06 Nov 2013 Karuna Mudliyar


Its a type III compensation, with two poles and zeros placed coincident respectively. It is placed in such a way to have enough phase margin for better stability and to minimize the effect of maximum phase lag due to Right-Half plane zero.

There are many literature on type-III compensation for dc-dc boost converter.

05 Nov 2013 Christian

I don`t get it :( I know how you get the state equations, but I don`t understand how you develope the transfer function of the controller out of these state equations. Thank you for your support.

04 Nov 2013 Karuna Mudliyar


I derived the small-signal ac modeling transfer function for dc-dc converter.

04 Nov 2013 Christian

Hello, how do you receive the transfer function of the controller?

19 Aug 2014

Closed loop boost converter - Equation Model

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