Interleaved Critical Current Mode Boost PFC Converter With Coupled Inductor

Yang, Fei; Ruan, Xinbo; Yang, Yang; Ye, Zhihong

doi:10.1109/tpel.2011.2106165

Cited by 158 publications

(52 citation statements)

References 18 publications

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“…For conventional Boost PFC, critical conduction mode (CRM) can be used to achieve ZVS soft-switching [31], [32]. How-ever, when the input voltage is lower than half of the output voltage, only partial ZVS can be achieved [32].…”

Section: A Dual-mode Soft-switching Operationmentioning

confidence: 99%

Review of GaN Totem-Pole Bridgeless PFC

Huang

2017

CPSS TPEA

141

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Abstract-Switching-mode AC/DC converters are widely used in modern power supplies for computers, data centers and telecommunication equipment. Achieving Power Factor Correction (PFC) and high efficiency are the two most important requirements. In many cases, high power density is also of tremendous interest. Both power efficiency and power density are greatly influenced by the power devices, the topology and the control used. Compared with conventional Si power MOSFET and Si super-junction MOSFET, the newly introduced 600 V GaN devices not only eliminate the reverser recovery, but also have much lower switching and driving losses. These excellent properties enable the emergence of the totem-pole bridgeless AC/DC converter as the next generation preferred solution for PFC instead of the stateof-the art Si-based boost PFC. In this paper, the key technologies and designs for both hard-switching and soft-switching GaN totem-pole PFC are reviewed and the key performance metrics are compared. A soft switching, 3.2 kW totem-pole PFC prototype with 99% efficiency and 130 W/inch3 power density has been achieved in the author's group as a proof of the concept. Based on the power density comparison, the high frequency soft-switching GaN totem-pole PFC is the preferred choice to achieve both high efficiency and high power density at the same time.Index Terms-Bridgeless PFC, PFC, soft switching, totem-pole PFC, WBG power device.

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Section: A Dual-mode Soft-switching Operationmentioning

confidence: 99%

Review of GaN Totem-Pole Bridgeless PFC

Huang

2017

CPSS TPEA

141

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“…For example, split-winding structure to reduce parasitic capacitance between windings, and EIE magnetic core structure for getting high coupling coefficient (14) (19) . There is also other instances which the loosely-coupled inductors is applied to PFC converters as well as DC-DC converters (20) .…”

Section: Calculation Of the Allowable Power For The Iwci Convertermentioning

confidence: 99%

Allowable Power Analysis and Comparison of High Power Density DC-DC Converters with Integrated Magnetic Components

et al. 2017

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Interleaved dc-dc converters with integrated magnetic components are popular as converters capable to achieve high efficiency with less of volume and mass. There are three methods for integrated magnetic components: loosely-coupled inductors, closed-coupled inductors and integrated-winding-coupled inductors. This paper presents a method to calculate the allowable power in various circuit topologies. It is useful for measuring the allowable power without magnetic saturation of an inductor based on its size. Following the analysis of allowable power for each coupled inductor, the allowable power of the integrated magnetic components is compared to that of the conventional interleaved converter. This comparison is realized under the same conditions. As a result, the interleaved converter with loosely-coupled and integrated winding coupled inductors were found to be effective for the downsizing of the magnetic components under continuous conduction mode operation. On the other hand, the interleaved converter with close-coupled inductors is effective for the downsizing of the magnetic components under critical conduction mode operation. This comparative data is discussed from both theoretical and experimental points of view.

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“…Coupling the inductors among the phases of interleaved boost converters reduces the current ripples and also helps in obtaining high stepup voltage conversion ratio. However, the existence of leakage inductance can cause large voltage overshoots [14]. Switched capacitor step-up converters can also achieve high voltage gain, however the efficiency of switched capacitor circuits is very low [15].…”

Section: Introductionmentioning

confidence: 99%

A Three Phase Interleaved Boost Converter with L & C Voltage Extension Mechanism

Farooq

Chen

2018

Teh. vjesn.

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Abstract:In this paper a high step-up dc-dc voltage converter is proposed. The proposed converter employs coupled inductors and voltage extension capacitors for obtaining a high voltage gain. The coupled inductors and extension capacitors are merged in traditional interleaved boost converters to get the additional advantage of high step-up voltage conversion ratio and reduced voltage stress on switches along with existing features of interleaved boost converters. The main operating principle of the proposed converter is discussed and the key principle waveforms and equations are analysed. A simulation in PSIM is carried out for the proposed converter as well as traditional interleaved boost converter for the same parameters which shows that the proposed converter has better performance as compared to the traditional interleaved boost converter. Finally, an experiment is carried on a 32 W, 20 V input, 160 V output prototype in the laboratory for experimental validation of the proposed converter. Important future directions have also been given for future research on the proposed topology.

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Interleaved Critical Current Mode Boost PFC Converter With Coupled Inductor

Cited by 158 publications

References 18 publications

Review of GaN Totem-Pole Bridgeless PFC

Review of GaN Totem-Pole Bridgeless PFC

Allowable Power Analysis and Comparison of High Power Density DC-DC Converters with Integrated Magnetic Components

A Three Phase Interleaved Boost Converter with L & C Voltage Extension Mechanism

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