Nonlinear phenomenon in a current-mode controlled buck-boost converter with solar cell input via varying reference current

Author(s):  
Hen-Kung Wang ◽  
Po-Lun Chang ◽  
Fei-Hu Hsieh ◽  
Hsiang-Yan Hsieh
Electronics ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 1883
Author(s):  
Paula Lamo ◽  
Ángel de Castro ◽  
Christian Brañas ◽  
Francisco J. Azcondo

Project-based learning (PBL) is proposed for the development of a Hardware-in-the-Loop (HIL) platform and the design of its digital controller for an undergraduate course on Digital Electronic Systems. The objective for students is the design of a digitally controlled HIL Boost converter, a digital pulse-width modulator (DPWM) and a current mode controller, implemented in field-programmable gate array (FPGA) devices. To this end, the different parts of the project are developed and evaluated, maximizing the use of FPGA resources in the design of the HIL and DPWM blocks, and applying design techniques that minimize the use of the digital resources used in the design of the controller. Students are equipped with a new individualized educational experience, allowing them to test their technical competence and knowledge in an environment close to the reality of the industry.


2005 ◽  
Vol 15 (10) ◽  
pp. 3337-3344 ◽  
Author(s):  
DONG DAI ◽  
YUE MA ◽  
CHI K. TSE

In this letter, chaos in a current-mode controlled boost converter is studied. Firstly, the existence of chaos is proven theoretically in this system. The proof consists of showing that the dynamics of the system is semiconjugate to that of a one-sided shift map, which implies positive entropy of the system and hence chaotic behavior. The essential tool is the horseshoe hypotheses proposed by Kennedy and Yorke, which will be reviewed prior to the discussion of the main finding. Then, the existence of chaos is illustrated in the light of homoclinic connection. Furthermore, global chaos resulting from homoclinic intersection of stable and unstable manifolds are illustrated numerically.


Author(s):  
Jihwan Lee ◽  
Junyeol Jeon ◽  
Jeongpyo Park ◽  
Mingyu Jeong ◽  
Jingyu Kang ◽  
...  

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