Continuous-conduction-mode SEPIC converter with low reverse-recovery loss for power factor correction

Kwon, Jung-Min; Choi, Woo-Young; Lee, J.-J.; Kim, E.-H.; Kwon, Bong-Hwan

doi:10.1049/ip-epa:20060486

Cited by 59 publications

(19 citation statements)

References 10 publications

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“…Therefore, the secondary current is decreases linearly from its maximum value ILa1 as follow. (3) The input current I in is the sum of ip and iLm and given by (4) The main switch current iSm in this mode can be derived by (5)…”

Section: Modes Of Operation 31 Modementioning

confidence: 99%

Design of Soft Switching Sepic Converter Fed DC Drive Applications

MohamedFaizal¹

2014

IJCA

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High efficiency DC-DC converters with high-voltage gain have been researched due to increasing demands. A softswitching single-ended primary inductor converter (SEPIC) is presented in this work. An auxiliary switch and a clamp capacitor are presented in this project. A coupled inductor and an auxiliary inductor are utilized to obtain ripple-free input current and achieve zero voltage-switching (ZVS) operation of the main and auxiliary switches. The voltage multiplier technique and active clamp technique are applied to the conventional SEPIC converter to increase the voltage gain, reduce the voltage stresses of the power switches and diode. Moreover, by utilizing the resonance between the resonant inductor and the capacitor in the voltage multiplier circuit, the zero-current-switching (ZVS) operation of the output diode is achieved and its reverse-recovery loss is significantly reduced. The converter achieves high efficiency due to soft switching commutation of the power semiconductor device. The circuit is simulated using MATLAB Simulink and output result is verified.

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Section: Modes Of Operation 31 Modementioning

confidence: 99%

Design of Soft Switching Sepic Converter Fed DC Drive Applications

MohamedFaizal¹

2014

IJCA

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“…Fig. 1 shows the circuit diagram of the conventional two-level SEPIC (Kwon et al, 2006). It is based on two-level switching power converter topologies like the buck or boost converter (Dylan and Nguyen, 2012).…”

Section: Introductionmentioning

confidence: 99%

Three-level single-ended primary-inductor converter for photovoltaic power conditioning systems

Choi

2016

Solar Energy

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“…Flyback PFC can resolve the polarity reversal problem and possesses the characteristic of galvanic isolation, but it has the significant drawback of low efficiency [8]- [13]. Compared with the aforementioned step-up/step-down PFCs, the SEPIC type performs better in total harmonic distortion (THD), efficiency, and power factor [14]- [16].…”

Section: Introductionmentioning

confidence: 99%

Dual-Output Single-Stage Bridgeless SEPIC with Power Factor Correction

Shen¹,

Yang²

2015

Journal of Power Electronics

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This study proposes a dual-output single-stage bridgeless single-ended primary-inductor converter (DOSSBS) that can completely remove the front-end full-bridge alternating current-direct current rectifier to accomplish power factor correction for universal line input. Without the need for bridge diodes, the proposed converter has the advantages of low component count and simple structure, and can thus significantly reduce power loss. DOSSBS has two uncommon output ports to provide different voltage levels to loads, instead of using two separate power factor correctors or multi-stage configurations in a single stage. Therefore, this proposed converter is cost-effective and compact. A magnetically coupled inductor is introduced in DOSSBS to replace two separate inductors to decrease volume and cost. Energy stored in the leakage inductance of the coupled inductor can be completely recycled. In each line cycle, the two active switches in DOSSBS are operated in either high-frequency pulse-width modulation pattern or low-frequency rectifying mode for switching loss reduction. A prototype for dealing with an 85-265 V rms universal line is designed, analyzed, and built. Practical measurements demonstrate the feasibility and functionality of the proposed converter.

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Continuous-conduction-mode SEPIC converter with low reverse-recovery loss for power factor correction

Cited by 59 publications

References 10 publications

Design of Soft Switching Sepic Converter Fed DC Drive Applications

Design of Soft Switching Sepic Converter Fed DC Drive Applications

Three-level single-ended primary-inductor converter for photovoltaic power conditioning systems

Dual-Output Single-Stage Bridgeless SEPIC with Power Factor Correction

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