[1] Yao Suyi, Jiang Jianguo,. Non-inverting buck-boost DC-DC converterbased on constant inductor current control [J]. Journal of Southeast University (English Edition), 2021, 37 (2): 171-176. [doi:10.3969/j.issn.1003-7985.2021.02.006]

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Non-inverting buck-boost DC-DC converterbased on constant inductor current control()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

37

Issue:

2021 2

Page:

171-176

Research Field:

Electrical Engineering

Publishing date:

2021-06-20

Info

Title:

Non-inverting buck-boost DC-DC converterbased on constant inductor current control

Author(s):

Yao Suyi;  Jiang Jianguo

School of Electronic Information and Electrical Engineering, Shanghai Jiaotong University, Shanghai 200240, China

Keywords:

four switch buck-boost converter;  inductor current slope control;  constant inductor current control;  small signal model

PACS:

TM46

DOI:

10.3969/j.issn.1003-7985.2021.02.006

Abstract:

The hysteresis control combined with PWM control non-inverting buck-boost was proposed to improve the light load efficiency and power density. The constant inductor current control(CICC)was established to mitigate the dependence on the external components and device variation and make smooth transition between hysteresis control loop and pulse width modulation(PWM)control loop. The small signal model was deduced for the buck and boost operation mode. The inductor current slope control(ICSC)was proposed to implement the automatic mode transition between buck and boost mode in one switching cycle. The results show that the converter prototype has good dynamic response capability, achieving 94% efficiency and 95% peak efficiency at full 10 A load current.

References:

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Memo

Memo:

Biographies: Yao Suyi(1982—), male, Ph.D. candidate; Jiang Jianguo(corresponding author), male, doctor, professor, jjg6722@163.com.
Citation: Yao Suyi, Jiang Jianguo. Non-inverting buck-boost DC-DC converter based on constant inductor current control[J].Journal of Southeast University(English Edition), 2021, 37(2):171-176.DOI:10.3969/j.issn.1003-7985.2021.02.006.

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