Zero-Voltage-Switching Boost Converter Using a Coupled Inductor

Do, Hyun-Lark

doi:10.6113/jpe.2011.11.1.016

Cited by 12 publications

(7 citation statements)

References 12 publications

(6 reference statements)

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“…In references [23]- [26], coupled inductors were employed to achieve ZVS for synchronous DC-DC converters over a wide range of input voltage and load variation. The auxiliary circuit is relatively simple because it is composed of an auxiliary diode and a coupled winding.…”

Section: Introductionmentioning

confidence: 99%

A Family of Magnetic Coupling DC-DC Converters With Zero-Voltage-Switching Over Wide Input Voltage Range and Load Variation

Chen¹,

Dong²,

Deng³

et al. 2016

Journal of Power Electronics

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This paper presents a family of soft-switching DC-DC converters with a simple auxiliary circuit consisting of a coupled winding and a pair of auxiliary switch and diode. The auxiliary circuit is activated in a short interval and thus the circulating conduction losses are small. With the auxiliary circuit, zero-voltage-switching (ZVS) and zero-current-switching are achieved for the main and auxiliary switches respectively, over wide input voltage range and load variation. In addition, the reverse-recovery problem of diodes is significantly alleviated because of the leakage inductor. Furthermore, the coupled inductor simultaneously serves as the main and auxiliary inductors, contributing to reduced magnetic component in comparison with the conventional zero-voltage-transition (ZVT) converters. Experimental results based on a 500 W prototype buck circuit validate the advantages and effectiveness of the proposed magnetic coupling ZVS converter.

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Section: Introductionmentioning

confidence: 99%

A Family of Magnetic Coupling DC-DC Converters With Zero-Voltage-Switching Over Wide Input Voltage Range and Load Variation

Chen¹,

Dong²,

Deng³

et al. 2016

Journal of Power Electronics

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“…of Electrical Engineering, Pukyong National University, Korea ** Gimhae-Si Urban Development Corporation, Korea *** Dept. of Electrical Engineering, Masan University, Korea 접수일자 : 2016년 4월 26일 최종완료 : 2016년 5월 27일 [1][2][3][4] …”

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Characteristic of Three-Phase Voltage Type Soft-Switching Inverter using the Novel Active Auxiliary Resonant DC Link Snubber

Sung¹,

Heo²,

Mun³

et al. 2016

The Transactions of the Korean Institute of Electrical Engineer

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-This paper is Instant space vector PWM(Pulse Width Modulation)power conversion devices in switching power semiconductors from my generation to losses and switching when the voltage surge and current surge of electronic noise(EMI: Electro Magnetic Interference / RFI: Radio Frequency Interference)to effectively minimize the power soft-switching power conversion circuit topologies of auxiliary resonant DC tank for the purpose of high performance realization of the electric power conversion system by the high-speed switching of a semiconductor device(AQRDCT simultaneously : an active auxiliary resonance using auxiliary Quasi-resonant DC tank)DC link snubber switch has adopted a three-phase voltage inverter. AQRDCL proposed in this paper can reduce the effective and current peak stress of the power semiconductors of the auxiliary resonant snubber circuit compared to the conventional active-resonant DC link snubber, it is not necessary to install the clamp switch of the auxiliary resonant DC link, DC the peak current and power loss of the bus line can be reduced.

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“…A conventional type of PFC converter, which is usually controlled by the average current pulse width modulation (PWM) method, is a full-bridge rectifier followed by a boost converter, as shown in Fig. 1(a) [2]- [4]. However, it suffers from low efficiency and high stress on the main switch.…”

Section: Introductionmentioning

confidence: 99%

Novel Zero-Voltage-Switching Bridgeless PFC Converter

Haghi¹,

Zolghadri²,

Beiranvand³

2013

Journal of Power Electronics

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In this paper, a new zero-voltage-switching, high power-factor, bridgeless rectifier is introduced. In this topology, an auxiliary circuit provides soft switching for all of the power semiconductor devices. Thus the switching losses are reduced and the highest efficiency can be achieved. The proposed converter has been analyzed and a design procedure has been introduced. The control circuit for the converter has also been developed. Based on the given approach, a 250 W, 400 Vdc prototype converters has been designed at 100 kHz for universal input voltage (90-264 Vrms) applications. A maximum efficiency of 94.6% and a power factor correction over 0.99 has been achieved. The simulation and experimental results confirm the design procedure and highlight the advantages of the proposed topology.Key words: Bridgeless PFC, Power-factor-correction (PFC), Soft switching; Zero-voltage-switching (ZVS) NOMENCLATURE I. INTRODUCTIONTo overcome the challenges of the ever-increasing power densities of today's ac/dc power supplies, designers are continuously looking for opportunities to maximize efficiency, minimize the components count, and reduce the size of components. Conventional rectifiers encounter excessive peak input current and total harmonic distortion (THD) which reduce the power factor (PF) to about 0.5-0.7 [1]. Power factor correction (PFC) converters are employed to decrease these harmonics. A conventional type of PFC converter, which is usually controlled by the average current pulse width modulation (PWM) method, is a full-bridge rectifier followed by a boost converter, as shown in Fig. 1(a) [2]-[4]. However, it suffers from low efficiency and high stress on the main switch. Increasing the switching frequency reduces the volume and weight of the converter but, leads to higher switching losses. Therefore, using the soft-switching techniques is unavoidable for high switching frequency applications. Zero voltage switching (ZVS) and zero-current switching (ZCS) are soft-switching techniques which provide soft switching while retaining the desirable features of conventional PWM converters. ZVS techniques eliminate the turn-on capacitive losses. Thus MOSFETs are preferred for ZVS techniques [2]. The turn-off switching losses caused by tail currents, are a major part of the total switching losses in IGBTs. Therefore, in these converters, using ZCS techniques is more efficient than

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Zero-Voltage-Switching Boost Converter Using a Coupled Inductor

Cited by 12 publications

References 12 publications

A Family of Magnetic Coupling DC-DC Converters With Zero-Voltage-Switching Over Wide Input Voltage Range and Load Variation

A Family of Magnetic Coupling DC-DC Converters With Zero-Voltage-Switching Over Wide Input Voltage Range and Load Variation

Characteristic of Three-Phase Voltage Type Soft-Switching Inverter using the Novel Active Auxiliary Resonant DC Link Snubber

Novel Zero-Voltage-Switching Bridgeless PFC Converter

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