Study on an interleaved buck power factor corrector with gallium nitride field effect transistor and integrated inductor

Lin, Chien-Yu; Liu, Yuchen; Chiu, Huang‐Jen; Lo, Yu‐Kang; Lin, Chung-Yi; Tseng, Po-Jung; Cheng, Sui Sun

doi:10.1049/iet-pel.2013.0642

Cited by 17 publications

(10 citation statements)

References 15 publications

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“…The converter key waveforms are shown in Mode 1 [t 0 -t 1 ] (see Fig. 4a): At t 0 , S 1 is turned off and consequently, I L1 charges C S1 gradually as described by (1). Due to the presence of C S1 , which limits the rate of switch voltage rise, the turn-off switching loss of…”

Section: Operation Principles Of Interleaved Boost Converter With Thementioning

confidence: 99%

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Efficient ZVT cell for interleaved DC–DC converters

Akhlaghi

Farzanehfard

2020

IET Power Electronics

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Interleaved DC-DC converters are extensively employed in high-power applications to reduce input/output current ripple, elements current stress, and improve reliability. In order to eliminate the switching losses in interleaved converters, zero voltage transition (ZVT) technique can be used. This study presents a new compact ZVT cell appropriate for interleaved converters. This cell employs a low number of elements while imposing no extra voltage and current stresses on the converter main semiconductors. The proposed cell is applied to an interleaved boost converter to achieve full soft switching feature. The resulting ZVT interleaved boost converter is completely analysed and its design procedure is provided. Also, the converter is compared with the latest prominent counterparts presented in literature. Besides, its operation and theoretical analysis are validated by a 200 W and 100 kHz prototype. Finally, the proposed ZVT cell is applied to other types of interleaved converters and a family of ZVT interleaved converters is introduced.

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Section: Operation Principles Of Interleaved Boost Converter With Thementioning

confidence: 99%

“…Interleaved converters are widely utilised in many existing applications including power factor correction converters [1], voltage regulators [2], and renewable energy systems [3]. By applying the interleaving technique, a power conversion system splits into a number of smaller units operating in parallel.…”

Section: Introductionmentioning

confidence: 99%

Efficient ZVT cell for interleaved DC–DC converters

Akhlaghi

Farzanehfard

2020

IET Power Electronics

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“…Blocks Sin(θ), Cos(θ), and Cos(2θ) are found in preset look-up tables in which the output signals [sin (ωt), cos(ωt), and cos(2ωt)] are determined by angle signal (θ). The angle signal is an integration of the ω signal produced from (18). Due to the fact that the error signal in (18) is regulated at zero by the PI controller, the generated signal sin(ωt) is synchronous with input signal v s .…”

Section: Design Of Voltage Controllermentioning

confidence: 99%

“…2 Analysis of the conventional single-phase continuous conduction mode (CCM) boost PFC converter PFC converters are commonly designed using dual-loop control with inner current mode control [17,18]. As shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

Control method for improving the response of single‐phase continuous conduction mode boost power factor correction converter

Chiang

Lin

Chang

et al. 2016

IET Power Electronics

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Continuous conduction mode power factor correction AC-DC converters are widely employed as the front stage in power supplies with medium or high output power. The second-order reactive input power in single-phase systems causes second-order ripple in the DC-link voltage. The speed of voltage regulation is thus limited by the second-order frequency in seeking to achieve low distorted input current. This study presents a fast second-order voltage estimation method, wherein an integrator is used for the estimation of second-order voltage ripple to obtain rapid voltage feedback without ripple and thereby cope with the limitations imposed by the second-order frequency. This approach greatly expands the bandwidth of the voltage control loop beyond the second-order frequency while reducing the total harmonic distortion associated with the input current. This also makes it possible to reduce the DC capacitance to reduce costs. The authors opted for full digital control using a TI F28335 DSP IC, in conjunction with feedback plus feedforward control to facilitate the design of the current loop. A feedback current corrector is used to reduce distortion associated with the input current over a wide load range. The effectiveness of the proposed control method was confirmed with some simulation and experimental results.

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“…The replacement of Si MOSFETs by GaN-based devices in applications such as photovoltaic [11], [12], power factor correction [13], [14], audio power amplifiers [3] , envelope tracking [15], wireless energy transfer [16], [17], Light Distancing and Ranging (LiDAR) [18] and motor drivers [19] was already demonstrated.…”

Section: Introductionmentioning

confidence: 99%

Study on the Application of Gallium Nitride Transistors in Power Electronics

Duarte¹,

Ferreira²,

Costa³

et al. 2017

Eletrônica de Potência

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Wide bandgap semiconductors have emerged as an attractive option for silicon (Si) replacement in the recent years. Among the new materials, gallium nitride (GaN) has been considered as the most promising candidate. This paper presents an overview of the GaN technology in power electronics. The review focuses on the main aspects of GaN transistors, such as electrical, thermal and economical characteristics. A comparison between Si and GaN switching devices in a family of synchronous buck converters designed for LED lighting applications is also presented. This comparison was performed using synchronous buck converters, designed under same parameters, at five different switching frequencies, ranging from 100 kHz to 1 MHz. Efficiency and temperatures were recorded. GaN based converters presented higher efficiency and lower operating temperatures in all cases, with a maximum efficiency of 96.8% and a minimum of 94.5%. Besides, Si-based converters exhibited a higher performance degradation as switching frequency and dead time increase.

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Study on an interleaved buck power factor corrector with gallium nitride field effect transistor and integrated inductor

Cited by 17 publications

References 15 publications

Efficient ZVT cell for interleaved DC–DC converters

Efficient ZVT cell for interleaved DC–DC converters

Control method for improving the response of single‐phase continuous conduction mode boost power factor correction converter

Study on the Application of Gallium Nitride Transistors in Power Electronics

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