A Reconfigurable Totem-Pole PFC Rectifier With Light Load Optimization Control Strategy and Soft-Switching Capability

Lee, Young-Dal; Moon, Gun-Woo; Baek, Jae-Il; Kim, Chong-Eun

doi:10.1109/tpel.2020.3019085

Cited by 13 publications

(3 citation statements)

References 15 publications

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“…4 to verify the proposed method. In this section, the resonant period using the equivalent capacitance in (11) was compared with that of nonlinear output capacitance in (2). LTspice XVII was used when E, Lr, and ib are 300 V, 4.7 µH, and 0.5 A, respectively.…”

Section: 2mentioning

confidence: 99%

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Derivation of Resonant Period for Soft Switching Considering Nonlinear Characteristics of Output Capacitance in Switching Device

et al. 2023

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Many soft switching techniques utilize a resonance between an inductor and parasitic output capacitors of switching devices. However, output capacitance has nonlinear characteristics, which obscures the resonant period for soft switching. In this paper, a new method is proposed to derive the resonant period by considering nonlinear characteristics of the output capacitance. The method can be applied to a bridge-type converter which utilizes resonance for soft switching. Other parasitic capacitances which affect the resonant period, are also considered. To verify the proposed method, simulations and experiments were performed with a 3-kVA prototype half bridge auxiliary resonant commutated pole inverter.

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Section: 2mentioning

confidence: 99%

“…Previous works to derive resonant period for soft switching have been presented [1]- [11]. Transition time of a totem-pole bridgeless power factor correction converter with a ZVT cell has been proposed [2]- [3]. Resonant period for soft switching has also been calculated in LLC converter [5]- [7].…”

Section: Introductionmentioning

confidence: 99%

Derivation of Resonant Period for Soft Switching Considering Nonlinear Characteristics of Output Capacitance in Switching Device

et al. 2023

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“…Furthermore, it is operated through only two high-speed switches controlled by the main duty ratio. Therefore, TBPFC can achieve high efficiency due to low conduction and switching loss and high power density due to its simple circuit configuration [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Digitalized Control Algorithm of Bridgeless Totem-Pole PFC with a Simple Control Structure Based on the Phase Angle

Lee,

Park,

et al. 2023

Electronics

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Compared to the conventional boost power factor correction (PFC) converter, a totem-pole bridgeless PFC has high efficiency because it does not have an input diode rectifier stage, but a current spike may occur when the polarity of the grid voltage changes. This paper proposes a digital control algorithm for bridgeless totem-pole PFC with a simple control structure based on the phase angle of grid voltage. The proposed algorithm has a PI-based double-loop control structure and performs DC-link voltage and input inductor current control. Rectifying switches operate based on the proposed rectification algorithm using phase angle information calculated through a single-phase phase-locked loop (PLL) to prevent current spikes. The feed-forward duty ratio value is calculated according to the polarity of the grid voltage and added to the double-loop controller to perform appropriate power factor control. The performance and feasibility of the proposed control algorithm are verified through a 3 kW hardware prototype.

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A unified control strategy for improved performance of Totem-Pole Power Factor Correction Boost Converter

Mandal

Suhanya

Kumaresan

2022

2022 IEEE Global Conference on Computing, Power and Communication Technologies (GlobConPT)

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A Reconfigurable Totem-Pole PFC Rectifier With Light Load Optimization Control Strategy and Soft-Switching Capability

Cited by 13 publications

References 15 publications

Derivation of Resonant Period for Soft Switching Considering Nonlinear Characteristics of Output Capacitance in Switching Device

Derivation of Resonant Period for Soft Switching Considering Nonlinear Characteristics of Output Capacitance in Switching Device

Digitalized Control Algorithm of Bridgeless Totem-Pole PFC with a Simple Control Structure Based on the Phase Angle

A unified control strategy for improved performance of Totem-Pole Power Factor Correction Boost Converter

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