Buck Boost Converter with PI control

조회 수: 6 (최근 30일)
Weijie Yin
Weijie Yin 2011년 12월 6일
답변: G.A Chaudhry 2014년 9월 4일
http://img97.imageshack.us/img97/9180/buckboostconverter.jpg
Hi all,
I am trying to implement a PI controller to regulate the output voltage of a Buck Boost Converter. The link shows my circuit layout. The way i implemented the PI controller with PWM works on a buck converter.
However, when i switch it to a buck boost converter, it doesnt work. From what i see, there is no output being feedback to the sum-er to be added to the Vref of 20V.
Appreciate any help on this, as i have been stuck at this problem for days.

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답변 (2개)

SUDHAKAR REDDY AKKI
SUDHAKAR REDDY AKKI 2012년 1월 27일
What ever you done is wrong. so, just Replace the the Power switch and inductor ...
G.A Chaudhry
G.A Chaudhry 2014년 9월 4일
the direction of the diode is not correct if u r considering buck-boost topology as well.

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