Efficient single-phase full-bridge soft-switching inverter

Wang, Qiang; Wang, Youzheng

doi:10.1007/s43236-021-00218-8

Cited by 2 publications

(2 citation statements)

References 15 publications

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“…Thus, zero voltage switching (ZVS) is achieved with switching losses reduced. The proposed inverter topology in this paper takes advantage of a resonant circuit composed of passive components with a simpler structure while comparing to the inverter topology from the other works of literature [11,12,13]. The effective value of the fundamental mode from the result of Fourier transformation on the output current can be obtained by…”

Section: Single-phase Passive Soft-switching Inverter Circuitmentioning

confidence: 99%

A single-phase full-bridge soft-switching inverter circuit with an auxiliary resonant circuit

Yang,

Zeng,

Huang

et al. 2023

J. Phys.: Conf. Ser.

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A new topological structure is proposed in this article for the traditional single-phase full-bridge inverter circuit by adding an auxiliary synchronizing resonant circuit. Without extra switching transistors, the complexity of the control circuit is simplified while enabling zero voltage switching (ZVS) functionality. The significance of this proposed topology is that the switching transistors of all bridge arms are sharing one common synchronizing unit which is constructed with an absorbing inductor and capacitor. In this way, the added-on components can be substantially reduced for the main switching transistor circuit. By utilizing a big-volume capacitor as the constant voltage source, the sourceless energy feedback unit can minimize the switching losses. In the meantime, the proportional-resonant feedback circuit can modify the sinusoidal pulse width modulation (SPWM) duty ratio to stabilize the output current. In the PSIM power electronic simulation software environment, the operation of the soft-switching inverter circuit is analyzed to demonstrate our proposed topology can reduce the on-off switching losses as expected for the switching transistors of the soft-switching inverter circuit.

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Section: Single-phase Passive Soft-switching Inverter Circuitmentioning

confidence: 99%

A single-phase full-bridge soft-switching inverter circuit with an auxiliary resonant circuit

Yang,

Zeng,

Huang

et al. 2023

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

show abstract

“…Scholars at home and abroad have carried out a series of studies on the resonant zero-current soft-switching topology (Ning et al , 2017a, 2017b; Wang et al , 2021; Wang et al , 2020; Guan, 2019) and the control method (Yin et al , 2016; Bahrami et al , 2017; Rasoulinezhad et al , 2021; Ling et al , 2015; Wu, 2018). Wu et al (2016) proposed a new type of high-efficiency low-voltage fuel cell power regulation system.…”

Section: Introductionmentioning

confidence: 99%

Research and optimization design of two-stage isolated inverter power supply based on series quasi-resonance

Wang

Song

et al. 2023

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Purpose This paper aims to solve the problems of large hard switching loss and unclear resonant parameter design in the existing inverter power supply topology. Design/methodology/approach This paper proposes a simple and reliable two-stage isolated inverter composed of series quasi-resonant push-pull and external freewheeling diode full-bridge inverter. The power supply topology is analyzed, the topology mode is analyzed, the mathematical model of the converter is established and the DC gain of the converter is deduced. The relationship between the load and the output gain of the resonant tank is presented, a new resonant parameter design method is proposed, and the parameter design of the resonant element of the converter is clarified. Findings The resonant components of the converter are designed according to the proposed resonant parameter design method, and the correctness of the method is verified by simulation and the development and testing of a 500 W experimental prototype. After experimental tests, the peak efficiency of the experimental prototype can reach 94%. Because the experimental prototype achieves soft switching, the heat generation of the switch is greatly reduced, so the heavy heat sink is removed, and the volume is reduced by about 30% compared with the traditional power supply, and the total harmonic distortion of the output voltage is about 2%. Originality/value The feasibility of the scheme is verified by experiments, which is of great significance for improving the efficiency of the inverter power supply and parameter optimization.

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Efficient single-phase full-bridge soft-switching inverter

Cited by 2 publications

References 15 publications

A single-phase full-bridge soft-switching inverter circuit with an auxiliary resonant circuit

A single-phase full-bridge soft-switching inverter circuit with an auxiliary resonant circuit

Research and optimization design of two-stage isolated inverter power supply based on series quasi-resonance

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