A Wide Input Voltage Range PFC Converter with High-Efficiency

Valipour, Hamed; Mahdavi, Mohammad; Ordonez, Martin

doi:10.1109/apec.2019.8722293

Cited by 5 publications

(2 citation statements)

References 9 publications

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“…However, those BCs tend to have low efficiency at low AC bus voltage and high battery voltage operations. Some rectifiers use different boost double rectifiers to extend the input voltage range with extra switch components [16,[20][21][22]. It brings attention to multi-level topologies, especially three to five level topologies, which gain component stress benefits without adding too many components [23,24].…”

Section: Introductionmentioning

confidence: 99%

A new modulation strategy on isolated battery charger with wide input and output voltage range

Jou

Chen

Wu³

et al. 2023

IET Power Electronics

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A new wide voltage operation range isolated battery charger, which is composed of an asymmetric T‐type AC–DC power rectifier and a modified re‐configurable half bridge DC–DC power converter, is proposed in this paper. The asymmetric T‐type rectifier adopts different modulation strategies under different AC bus voltage amplitudes and different battery voltages for increasing power conversion efficiency. As the isolated DC–DC power stage, a modified re‐configurable half bridge converter applies a three‐winding transformer to achieve a wide output operation range. The proposed battery charger operates over a wide AC input voltage range and wide DC output voltage range. A 3.2 kW hardware battery charger prototype is built to adapt AC voltage between 85 and 265 V. Both constant current and constant voltage modes are implemented experimentally to charge the battery up to 6.5 A from 50 to 500 V. The experimental results prove that the proposed asymmetric T‐type rectifier adopts different modulation strategies under different AC bus voltage amplitudes and different battery voltages can increase the power conversion efficiency, the proposed DC–DC converter can output the DC voltage from 50 to 500 V and the proposed battery charger can achieve around 94% efficiency.

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Section: Introductionmentioning

confidence: 99%

A new modulation strategy on isolated battery charger with wide input and output voltage range

Jou

Chen

Wu³

et al. 2023

IET Power Electronics

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“…A FEW examples of power factor correction (PFC) rectifiers in use are telecom power supplies, electric vehicles, adapters/chargers, LED drivers, and uninterruptible power supplies [1]- [8]. The common configuration of the PFC rectifiers consists of a full bridge diode rectifier followed by a dc-dc chopper, dominantly the boost circuit [9], [10].…”

Section: Introductionmentioning

confidence: 99%

High Step-Down Bridgeless Sepic/Cuk PFC Rectifiers With Improved Efficiency and Reduced Current Stress

Babaei

Monfared

2022

IEEE Trans. Ind. Electron.

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In this article, two high step-down bridgeless power factor correction rectifiers based on the switched inductor network (SIN) are introduced. The proposed rectifiers employ the SIN to provide high step-down voltage gain with a higher duty cycle than the competitors. They also offer higher efficiency, lower current stress, and total peak switching device powers. A thorough and straightforward design algorithm in the discontinuous conduction mode is provided that ensures a unity power factor and a low total harmonic distortion with a simple control scheme. As a demonstration of the superior performance of the proposed rectifiers, a 300-W high-gain sepic rectifier setup with 48V dc output voltage from a 230V rms /50Hz source is built in the laboratory.

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