A Simplified Quadrangle Current Modulation for Four-Switched Buck-Boost Converter (FSBB) with a Novel Small Signal Model

Bai, Yang; Cao, Yuliang; Mitrovic, Vladimir; Fan, Boran; Burgos, Rolando; Boroyevich, Dushan

doi:10.1109/apec43580.2023.10131331

Cited by 11 publications

(1 citation statement)

References 28 publications

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“…is the output voltage. Under ideal conditions, through the principle of inductance volt-second balance, the lossless voltage gain can be expressed as [8]: , a new mode called Buck Boost mode is proposed. Since the converter contains three working modes, namely, Buck, Boost and Buck Boost, the three-mode control can achieve more accurate control, thus improving the system performance.…”

Section: Structure Descriptionmentioning

confidence: 99%

Design of a PWM/PFM hybrid modulation switching circuit for a four-switch buck-boost converter

Song,

Fang,

Zhao

et al. 2024

J. Phys.: Conf. Ser.

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Based on the application background of fuel cell, the conversion efficiency of the four-switch Buck-Boost converter using PWM (Pulse width modulation) is low at light load, and the conversion efficiency of the four-switch Buck-Boost converter using PFM (Pulse frequency modulation) is low at heavy load. A PWM/PFM hybrid modulation circuit using digital module to detect induced current and feedback voltage is presented. The circuit structure is simple and easy to integrate. It has the effect of fast selection according to inductance current and feedback voltage. The circuit works in PWM mode by default. After soft startup, PWM/PFM mode can be switched according to the load. Finally, simulation is carried out in FSBB converter. The experimental results show that the PWM/PFM hybrid modulation circuit has the function of multi-load lead switching mode and protection mechanism. Simulation in FSBB converter shows that the converter efficiency reaches 91.99% and the maximum load current is 2A. This helps improve the efficiency of Buck-Boost converters.

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Section: Structure Descriptionmentioning

confidence: 99%

Design of a PWM/PFM hybrid modulation switching circuit for a four-switch buck-boost converter

Song,

Fang,

Zhao

et al. 2024

J. Phys.: Conf. Ser.

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Lyapunov stability analysis and FIL implementation for boundary‐based hybrid controller in boost converter

Patel,

Shah

2024

Adv Control Appl

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This paper presents a comprehensive stability analysis of the boundary‐based hybrid control (BBHC) algorithm designed for boost converter. The stability assessment is carried out utilizing multiple Lyapunov functions, addressing both continuous conduction mode (CCM) and discontinuous conduction mode (DCM) operation. The boost converter is modeled as a hybrid automaton to capture its dynamic behavior accurately. Through rigorous Lyapunov stability analysis, this study demonstrates the effectiveness of the BBHC algorithm in ensuring stable operation of the boost converter across various operating modes. Additionally, the proposed control algorithm's validation is conducted using the FPGA‐in‐the‐loop (FIL) technique, highlighting its efficiency and robustness in real‐world applications. This research contributes valuable insights into the design and implementation of stable control strategies for boost converter, emphasizing the practical utility of the BBHC algorithm with FIL for enhanced performance and reliability in power electronics systems.

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An Efficient Four Switch Buck-Boost Closed Loop Control Method Without Table Lookup

Li,

Zhou,

Zhou

et al. 2024

Lecture Notes in Electrical Engineering

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A Simplified Quadrangle Current Modulation for Four-Switched Buck-Boost Converter (FSBB) with a Novel Small Signal Model

Cited by 11 publications

References 28 publications

Design of a PWM/PFM hybrid modulation switching circuit for a four-switch buck-boost converter

Design of a PWM/PFM hybrid modulation switching circuit for a four-switch buck-boost converter

Lyapunov stability analysis and FIL implementation for boundary‐based hybrid controller in boost converter

An Efficient Four Switch Buck-Boost Closed Loop Control Method Without Table Lookup

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