A front-end converter with high reliability and high efficiency

Mino, K.; Matsumoto, Hiroyuki; Nemoto, Yuji; Fujita, Satoru; Kawasaki, Daisuke; Yamada, Ryuji; Tawada, Nobuyuki

doi:10.1109/ecce.2010.5618160

Cited by 8 publications

(3 citation statements)

References 8 publications

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“…A PFC (power factor correction) circuit is often configured by connecting a boost chopper to the output stage of a rectifier bridge 1 ; this configuration is widely used as a means to suppress input harmonic current in power supplies with single‐phase input.…”

Section: Forewordmentioning

confidence: 99%

“…The current's peak value and change rate depend on instantaneous voltage, load, and other parameters; hence, switching frequency (below "frequency") varies greatly. With CCM-PFC, frequency is constant at 700-100 kHz in many cases 1,2 ; with CRM, maximum frequency at a low load may reach about 800 kHz even though the minimum frequency is set below 100 kHz. This not only adds to loss but also leads to increase of conducted EMI.…”

Section: Forewordmentioning

confidence: 99%

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Limitation of switching frequency to improve characteristics and suppression of input current distortion for critical mode PFC

Yamada

Araumi

Wãda

2022

Electrical Engineering Japan

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In critical mode power factor correction (PFC), the switching frequency is varied to achieve a sinusoidal input current waveform. Under certain conditions, a higher frequency increases the loss and noise. Meanwhile, the limitation of the switching frequency leads to an increase in input current distortion. This paper proposes a method to prevent an increase in distortion by compensating the pulse width at a limited frequency. Using this control method, critical mode PFC with a limited maximum switching frequency was evaluated. As a result, the total harmonic distortion of the input current was lower than that before the frequency limitation. Furthermore, the improvement in efficiency and the reduction in conducted EMI were confirmed.

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Section: Forewordmentioning

confidence: 99%

Section: Forewordmentioning

confidence: 99%

Limitation of switching frequency to improve characteristics and suppression of input current distortion for critical mode PFC

Yamada

Araumi

Wãda

2022

Electrical Engineering Japan

Self Cite

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“…There into, the DC-AC main inverter adopts the topological structure of three phase six switch main circuit which directly inverts the input DC voltage, followed by output by power frequency transformer isolation. [1][2][3][4] After that, the stable three phase four-wire 380V power supply and the single phase 220V power supply are achieved. The bi-directional AC-DC converter also applies the topological structure of three phase six switch main circuit which can materialize bi-directional energy conversion.…”

Section: Introductionmentioning

confidence: 99%

Simulation of the Integrated Power Supply (IPS) Technology

Zheng¹

2015

Proceedings of the First International Conference on Information Sciences, Machinery, Materials and Energy

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Abstract. The paper presents a new type topological structure for the IPS, which materializes the integrated design of inverter, battery charger and emergency power supply (EPS). The IPS is composed of a DC-AC inverter and a bi-directional AC-DC converter. When the IPS works normally, the bi-directional AC-DC converter works as a battery charger in the rectified of three phase PWM state; when the IPS fails, the bi-directional AC-DC converter works in the three phase PWM inverter as EPS. The simulation experimental results have proved the correctness and feasibility of the topological structure and the control strategies of the main circuit.

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A power quality improved bridgeless converter based computer power supply

Singh

Bhuvaneswari

et al. 2014

2014 6th IEEE Power India International Conference (PIICON)

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A front-end converter with high reliability and high efficiency

Cited by 8 publications

References 8 publications

Limitation of switching frequency to improve characteristics and suppression of input current distortion for critical mode PFC

Limitation of switching frequency to improve characteristics and suppression of input current distortion for critical mode PFC

Simulation of the Integrated Power Supply (IPS) Technology

A power quality improved bridgeless converter based computer power supply

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