A high-frequency isolated four-switch single-phase quasi-Z-source AC–AC converter with inherent commutation and step-changed frequency operation

S Fathi, SMJ Mousavi, E Babaei - IEEE Transactions on Power …, 2022 - ieeexplore.ieee.org
In this article, a high-frequency isolated single-phase quasi-Z-source ac–ac converter is
proposed. This converter can generate a broad range of output voltage while also allowing …

An improved bipolar-type AC–AC converter topology based on nondifferential dual-buck PWM AC choppers

Y Wang, P Wang, G Cai, C Liu, D Guo… - … on Power Electronics, 2020 - ieeexplore.ieee.org
A novel single-phase pulsewidth modulation (PWM) direct ac–ac converter based on two-
level nondifferential dual-buck ac chopper legs with inverting and noninverting operations is …

Nondifferential AC choppers based identical bipolar buck–boost AC–AC converter without commutation issue

HF Ahmed, CH Chung, AA Khan… - … on Power Electronics, 2022 - ieeexplore.ieee.org
This article proposes a new H-bridge structured bipolar pulsewidth modulation (PWM) buck–
boost ac–ac converter based on the nondifferential ac choppers. The proposed converter …

A Bidirectional Direct AC-AC Resonant SCC

SM Mortazavi, R Beiranvand - IEEE Transactions on Industrial …, 2023 - ieeexplore.ieee.org
A direct ac–ac resonant switched-capacitor converter (SCC) for both noninverting and
inverting output voltages is proposed here, which is suitable for bidirectional power …

Highly efficient single-phase direct AC-to-AC converter with reduced semiconductor count

S Sharifi, M Monfared… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
A simple and efficient single-phase direct ac-to-ac converter with the possibility to be utilized
as a voltage buck or buck-boost converter is proposed in this article. The proposed converter …

Single-phase symmetric-bipolar-type high-frequency isolated buck-boost AC–AC converter with continuous input and output currents

HF Ahmed, MS El Moursi, B Zahawi… - … on Power Electronics, 2021 - ieeexplore.ieee.org
A single-phase symmetric-bipolar-type high-frequency isolated buck-boost ac–ac (SBT-HFI-
BBAC) converter is proposed. The converter is composed of two full-bridge inverter …

Magnetically coupled single-phase AC-AC converter with reduced number of passive components

S Esmaeili, E Azimi, H Hafezi, A Mahmoudi… - IEEE …, 2022 - ieeexplore.ieee.org
An AC-AC direct single-phase converter based on an impedance network is presented in
this manuscript. It possesses all privileges of similar impedance source AC-AC converters …

A direct AC–AC switched-capacitor converter with input-series output-parallel and in-phase/out-of-phase capabilities

SM Mortazavi, R Beiranvand - IEEE Transactions on Power …, 2023 - ieeexplore.ieee.org
In this article, a bidirectional transformerless multilevel direct ac–ac switched-capacitor
converter (SCC) is proposed with both in-phase and out-of-phase output voltage …

Novel bipolar-type direct AC–AC converter topology based on non-differential AC choppers

C Liu, D Guo, R Shan, G Cai, W Ge… - … on Power Electronics, 2019 - ieeexplore.ieee.org
This paper introduces a novel H-bridge structured ac–ac pulsewidth modulation (PWM)
converter topology based on two-level non-differential ac chopper legs, which can work at …

A reliable single-phase bipolar buck–boost direct PWM AC–AC converter with continuous input/output currents

HF Ahmed, MS El Moursi, H Cha… - IEEE Transactions …, 2019 - ieeexplore.ieee.org
In this article, a single-phase bipolar buck-boost direct pulsewidth-modulated ac-ac
converter is proposed, comprised of six insulated-gate bipolar transistors, a small film …