A Three-Level Quasi-Two-Stage Single-Phase PFC Converter with Flexible Output Voltage and Improved Conversion Efficiency

Tang, Yi; Zhu, Dexuan; Jin, Chen; Wang, Peng; Blaabjerg, Frede

doi:10.1109/tpel.2014.2314136

Cited by 55 publications

(33 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…where sgn() is the sign function. Generally, the last term on the right side of (7) is so small that it can be ignored [32,38]. Then (7) is simplified to…”

Section: A Modeling and Analysismentioning

confidence: 99%

“…Those two decoupling concepts are also applied for PFC rectifiers [30][31][32][33][34][35][36]. In [30][31][32] a buck-boost dc/dc converter is paralleled with the load to buffer the low frequency ripple power. Then, the flicker-free electrolytic capacitor-less LED driver is achieved.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, a relative large input filter may be required due to discontinuous current before the diode rectifier. In [30][31][32][33][34] only one decoupling capacitor is used to buffer the low frequency ripple power. While in [35] and [36] two decoupling capacitors are used and they also play the role of the output filter.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Single-Phase PFC Rectifier With Wide Output Voltage and Low-Frequency Ripple Power Decoupling

Liu

Sun

et al. 2018

IEEE Trans. Power Electron.

View full text Add to dashboard Cite

1-This paper proposes a single-phase PFC rectifier to achieve high power factor, wide output voltage range, and ripple power decoupling without using electrolytic capacitors. It consists of two parts: power factor correction (PFC) circuit and output voltage regulation circuit. The load side is involved in both parts, which is different from the regular two-stage conversion structure. The proposed rectifier can be directly applied to low voltage cases due to the wide output voltage range. And the decoupling capacitor voltage can be smaller than the peak grid voltage, which reduces the voltage stress. Besides, the low frequency ripple power buffer is implemented without a dedicated power-buffering controller. This paper firstly introduces the circuit structure, operation principles, and control method. Then, the system design consideration is given. Finally, the effectiveness of the proposed topology is verified by the simulations and experimental results. Index Terms-Active power decoupling, closed-loop control, low frequency ripple power, PFC, wide output voltage.

show abstract

“…where sgn() is the sign function. Generally, the last term on the right side of (7) is so small that it can be ignored [32,38]. Then (7) is simplified to…”

Section: A Modeling and Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Single-Phase PFC Rectifier With Wide Output Voltage and Low-Frequency Ripple Power Decoupling

Liu

Sun

et al. 2018

IEEE Trans. Power Electron.

View full text Add to dashboard Cite

show abstract

“…The structure shown in Fig. 5(a) has been used in electric vehicle charging as a three-level quasi-twostage single-phase power factor correction (PFC) converter [27].…”

Section: Led Driver Architecturementioning

confidence: 99%

Single-Phase LED Drivers With Minimal Power Processing, Constant Output Current, Input Power Factor Correction, and Without Electrolytic Capacitor

Wong

Tse

et al. 2018

IEEE Trans. Power Electron.

View full text Add to dashboard Cite

High-power light-emitting-diodes (LEDs) having properties of high luminous efficacy and long life span are becoming a major light source for general illumination. To fully utilize the advantages of LED in lighting applications, the off-line power supply that drives the LED should possess the following features: high efficiency, long life span, high input power factor, and constant output current. In this paper, high efficiency is achieved by using a minimum power processing (MPP) configuration. Near perfect power factor correction (PFC) is achieved by a simple dual-output discontinuous-conductionmode (DCM) pulse-width-modulated (PWM) front-end converter. One output of the front-end converter is connected to the LED load using a control switch. The other output is connected directly to a dc storage capacitor cascaded with a downstream DCM PWM converter driving the same LED load to achieve constant output current (COC) driving. The power flow is controlled to achieve the required MPP which can also reduce the storage capacitance by balancing only the ac input ripple power and the dc output power without power recycling. Thus, the design requires no electrolytic capacitor, hence extending the system life span. The achievement of input PFC, MPP and COC requires design trade-off among design freedom, ease of control and component count. LED drivers having all these properties are developed, designed and tested. . Her research interests include application of integrated-magnetics, inductive power transfer converters, soft-switching dc-dc converters, power factor correction, and converter modeling. She has published more than 70 papers in international journals and conferences, and is the holder of 16 patents.

show abstract

“…These types of converters are divided into single-and two-stage types according to the control technique. For the two-stage PFC converters, two power-processing stages are cascaded [1]- [3]: one is for PFC, and the other is for the tightly regulated output voltage. Although the two-stage PFC converters achieve very good performance such as high power factor and low voltage stress, they suffer from the disadvantages of high component count, large size, high cost, and low power conversion efficiency compared with the single-stage PFC converters.…”

Section: Introductionmentioning

confidence: 99%

Efficient Single-Switch Boost-Dual-Input Flyback PFC Converter With Reduced Switching Loss

Yang

2015

IEEE Trans. Ind. Electron.

View full text Add to dashboard Cite

This paper presents an efficient single-switch boost-dual-input flyback power factor correction (PFC) converter. To achieve a high power factor, a boost PFC cell operating in discontinuous conduction mode is presented. A dual-input flyback DC-DC module, which consists of parallel primary windings and serial secondary windings, operating in critical conduction mode is introduced for galvanic isolation and valley-switching operation. In addition, the proposed converter features high efficiency because the input power is equally divided, and some power is directly transferred to the load by the dual-input flyback DC-DC module. The remaining power is stored in DC-bus capacitors, and it is closely related to the hold-up time. Moreover, the currents in the leakage inductors are absorbed by the DC-bus capacitors through a snubber diode, and they are reprocessed by the dual-input flyback DC-DC module. Consequently, the peak voltage in the MOSFET drain is clamped, and the total power conversion efficiency is improved. To verify the performance of the proposed converter, the operating principles, steady-state analysis, and experimental results from a 48-[V], 100-[W] prototype are presented. Korea, where he is currently a Professor. His research interests include the modeling, design and control of power converters, soft-switching power converters, resonant converters, PFC circuits, and driving circuits for plasma display panels.

show abstract

A Three-Level Quasi-Two-Stage Single-Phase PFC Converter with Flexible Output Voltage and Improved Conversion Efficiency

Cited by 55 publications

References 30 publications

A Single-Phase PFC Rectifier With Wide Output Voltage and Low-Frequency Ripple Power Decoupling

A Single-Phase PFC Rectifier With Wide Output Voltage and Low-Frequency Ripple Power Decoupling

Single-Phase LED Drivers With Minimal Power Processing, Constant Output Current, Input Power Factor Correction, and Without Electrolytic Capacitor

Efficient Single-Switch Boost-Dual-Input Flyback PFC Converter With Reduced Switching Loss

Contact Info

Product

Resources

About