A Z-Source Half-Bridge Converter

Zhang, Guidong; Zhong, Li; Zhang, Bo; Qiu, Dongyuan; Xiao, Wenxun; Halang, Wolfgang A.

doi:10.1109/tie.2013.2257146

Cited by 54 publications

(48 citation statements)

References 28 publications

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“…Equations (4) to (9) are confirmed for this operating mode. Also, all diodes of the proposed inverter are blocking.…”

Section: First Operating Modesupporting

confidence: 56%

“…Hence, it is not expected that boost factor of proposed inverters differ from conventional Z-source inverter. 4 In addition, boost factor of proposed inverter is equal to boost factors of quasi-Z-source inverter, 2 series Z-source inverter, 3 embedded switched-Z-source inverter, 6 asymmetrical half-bridge inverter with 1 impedance network, 9 half-bridge inverter with 2 impedance networks, 10 and symmetrical half-bridge inverter with 1 impedance network. Table 2 summarizes boost factors of some of the conventional inverters.…”

Section: Comparison Of Boost Factormentioning

confidence: 97%

“…In addition, detailed steady-state analyzes are presented and equations of current through components and voltage across components are derived. 9 Also, the proposed inverters are usable in galvanically isolated DC/DC conversion. To fill the gap in published papers about general topologies of half-bridge Z-source inverters, power circuit of general topology with multiple DC sources and derivation of subcircuits are proposed.…”

Section: Introductionmentioning

confidence: 99%

“…To resolve the limitations of conventional inverters, Z-source inverter has been proposed in Peng. In addition to impedance source full-bridge inverters, half-bridge Zsource inverter for the first time has been presented in Zhang et al 9 The presented topology in Zhang et al 9 has high voltage gain in comparison with conventional half-bridge inverter. All presented topologies in previous studies [2][3][4] have common ground between input source and bridge of inverter.…”

Section: Introductionmentioning

confidence: 99%

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A class of half‐bridge quasi‐Z‐source inverters: Detailed steady‐state analysis in various operating states, design considerations, and derivation of general topology

Sedaghati

Asl

2018

Circuit Theory & Apps

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In this paper, 2 types of half-bridge quasi-Z-source inverters with detailed analysis are proposed. Unlike the classical half-bridge inverter, both types of proposed half-bridge inverters can generate zero voltage level in output. Moreover, lack of continuous input current in conventional half-bridge inverters is resolved by the second type of proposed inverters. One of the important advantages of proposed inverters is using the 1 impedance network only with 2 capacitors and 2 inductors; whereas, most of the half-bridge Z-source inverters have more than 1 impedance network or use additional semiconductor elements. In this paper, operation principles of proposed inverters in different operating modes are discussed. Then, design considerations and calculation of critical Inductance in boundary conditions between 2 different states are provided. Next, power circuit of general topology with multiple DC sources and derivation of subcircuits are proposed. Finally, to verify validity of derived equations, simulation results using PSCAD/EMTDC software and experimental results are provided.KEYWORDS half-bridge inverter, quasi-Z-source inverter, shoot-through, Z-source inverter

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“…Equations (4) to (9) are confirmed for this operating mode. Also, all diodes of the proposed inverter are blocking.…”

Section: First Operating Modesupporting

confidence: 56%

Section: Comparison Of Boost Factormentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A class of half‐bridge quasi‐Z‐source inverters: Detailed steady‐state analysis in various operating states, design considerations, and derivation of general topology

Sedaghati

Asl

2018

Circuit Theory & Apps

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“…In some designs, the duty ratio can be used as a design specification parameter [22,23]. The duty ratio is very important in applications for controlling of dc-dc converters [24,25] and other power-electronic applications [26,27]. In this case, an analysis of the ZCS/ZVS mixed-mode operation of the dc-dc converters at any duty ratio is important and helpful for many applications such as primary switches [28,29].…”

mentioning

confidence: 99%

High-Efficiency Class- <inline-formula> <tex-math notation="LaTeX">$\mbox{E}^{-1}$</tex-math></inline-formula> and Class-F/E Power Amplifiers at Any Duty Ratio

Sheikhi

Hayati

Grebennikov

2016

IEEE Trans. Ind. Electron.

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power amplifier under zerocurrent switching (ZCS) and zero current-derivative switching (ZCDS) condition at any duty ratio is analyzed. The maximum switch voltage and current, output power capability, and element values as functions of the duty ratio are obtained for both classes. The main objective of the analysis is to choose the proper duty ratio to maximize the output power capabilities at optimum conditions. The element values are dependent upon the duty ratio and require a careful selection of the duty ratio to reach desired specification. The effect of the duty ratio D=0.3-0.7 on the performance of the Class-E -1 and Class-F 3 /E power amplifier is demonstrated. The duty ratio is used not only as the design specification but also as the adjusting parameter for achieving a certain condition. The measured maximum drain efficiency of 88% and 87% are obtained at 4 MHz at 30 dBm input power for Class-F 3 /E and Class-E -1 power amplifier, respectively. The results show that lower peak switch voltage and current are obtained in Class-F 3 /E power amplifier in comparison to Class-E -1 for the same conditions.

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Trans Z‐source‐based half‐bridge inverter: A method for achieving high voltage gain

Aalami

Babaei

Zadeh

et al. 2022

Circuit Theory & Apps

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This article offers a modified trans Z-source-based half-bridge inverter topology. A suitable pulse width modulation (PWM)-based control method is applied on the proposed inverter. Regarding this control technique, the state of switches in each of the operational states is obtained, and their equivalent control circuits are demonstrated and examined in depth. With the help of the results of these analyses, the boost factor for the proposed structure can be calculated. Additionally, the necessary equations for designing the passive components, as well as the power ratings of the active components, are found.Then, in order to evaluate the advantages and disadvantages of the proposed topology, a comparative study is conducted in several aspects, including the boost factor, the voltage stresses on capacitors, and the voltage stresses on passive devices. This comparison demonstrates that the proposed topology provides a high boost factor while minimizing voltage stresses on the devices, resulting in a smaller volume and size and a lower cost. Once the proposed topology has been thoroughly analyzed, the total power losses and the percentages of power losses consumed by each component device are calculated to obtain efficiency. Finally, an experimental prototype based on the equations for passive and active components is developed. Experiments are used to verify the validity of the proposed topology and the accuracy of the equations.

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A Z-Source Half-Bridge Converter

Cited by 54 publications

References 28 publications

A class of half‐bridge quasi‐Z‐source inverters: Detailed steady‐state analysis in various operating states, design considerations, and derivation of general topology

A class of half‐bridge quasi‐Z‐source inverters: Detailed steady‐state analysis in various operating states, design considerations, and derivation of general topology

High-Efficiency Class- <inline-formula> <tex-math notation="LaTeX">$\mbox{E}^{-1}$</tex-math></inline-formula> and Class-F/E Power Amplifiers at Any Duty Ratio

Trans Z‐source‐based half‐bridge inverter: A method for achieving high voltage gain

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