Journal Article10.1109/TPEL.2014.2372152
A Novel Control Scheme of DCM Boost PFC Converter
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TL;DR: In this paper, a variable duty cycle control scheme is proposed to make the input current contain only third harmonic which is in phase with the fundamental component, while remaining the same PF at a certain input voltage as that of constant duty-cycle control.
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Abstract: The discontinuous current mode boost power factor (PF) correction converter features a zero-current turn-on for the switch, no reverse recovery in diode, and constant frequency operations. However, when the duty cycle is constant in a line cycle, the input current contains rich third harmonic which has a phase difference of π with respect to the fundamental component. The harmonic results in not only a lower PF but also larger peak and RMS current values of the main power components, which lead to a higher conduction and switching turn-off loss. In this paper, a variable duty cycle control scheme is proposed to make the input current contain only third harmonic which is in phase with fundamental component, while remaining the same PF at a certain input voltage as that of constant duty cycle control. A method of fitting the duty cycle is further proposed for simplifying the circuit implementation. The efficiency is improved as the critical inductance increases and the peak and RMS current values consequently decrease. The proposed method also achieves an output voltage ripple or the output storage capacitance reduction. The experimental results from a prototype of 120 W are given to verify the effectiveness of the proposed method.
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Citations
An Error Amplifier Scheme to Reduce Compensation Capacitor for Boost PFC Converter
TL;DR: An error amplifier (EA) scheme to reduce type-I compensation capacitor for boost power factor correction (PFC) converter is proposed in this article , where the compensation capacitance is significantly reduced by applying a switch network to sample the output feedback signal.
3
PWM Rectifier Imitating Linearization Control for Diode Rectifier through a Boost-PFC Circuit with Improved Controllability and Suppressed Harmonics
Yanjun Tian,Xiaoqi Xu,Wanbo Liu +2 more
TL;DR: A novel Boost-PFC control methodology is introduced, utilizing virtual DQ coordinate transformation to linearize control for nonlinear PFC systems, improving output voltage, power factor, and mitigating grid-side current harmonics under grid distortions.
3
A Novel Single-Stage Tandem Soft-Switching Converter with Low Input Current Distortion
Jianming Xu,Bo Qian,Muhammad Humayun +2 more
- 17 Oct 2018
TL;DR: In this paper, a single-stage continuous conduction mode (CCM) soft-switched power factor correction (PFC) converter with a tandem topology has been introduced to reduce the total harmonic distortion (THD) of the input current further in the boost PFC converter under lower power and higher output voltage conditions.
2
A Unified Control for PFC Converter With Seamless Transition Between PWM/PFM Modes
TL;DR: In this article , a unified control method was proposed to achieve both pulsewidth modulation control and pulse frequency modulation control, which is based on the virtual impedance principle, by comprehensively considering current ripple, switching frequency, and efficiency, the converter can operate flexibly in the situation of variable loads.
2
Flyback PFC with a Series Pass Module in Cascode Structure for Input Current Shaping
Chung-Pui Tung,Ke-Wei Wang,Ka-Wai Ho,Jeff Po-Wa Chow,John Wing-To Fan,Wan-Tim Chan,Henry Shu-Hung Chung +6 more
- 01 Sep 2018
TL;DR: A series-pass module (SPM) for shaping the input current waveform of flyback power factor corrector (PFC) to be in the same phase and waveshape as the supply voltage is presented in this article.
2
References
Single phase power factor correction: a survey
TL;DR: A review of the most interesting solutions for single phase and low power applications is carried out in this article, where the major advantages and disadvantages are highlighted and the field of application is found.
732
Current waveform distortion in power factor correction circuits employing discontinuous-mode boost converters
K.-H. Liu,Y.-L. Lin +1 more
- 26 Jun 1989
TL;DR: In this paper, the authors derived the waveform distortion and the maximum power factor achievable in a graph form as functions of the ratio of the line voltage to output voltage for active power factor correction circuits.
390
Design consideration for power factor correction boost converter operating at the boundary of continuous conduction mode and discontinuous conduction mode
Jih-Sheng Lai,D. Chen +1 more
- 07 Mar 1993
TL;DR: In this paper, a boost power converter operating at the boundary of continuous conduction mode (CCM) and discontinuous conduction modes (DCM) for power factor correction is described.
245
Design Guidelines for Interleaved Single-Phase Boost PFC Circuits
TL;DR: This paper provides a comprehensive guideline for the design of a single-phase PFC targeting for minimal volume, as it is highly relevant for ultracompact integrated systems.
243
A Simple Digital DCM Control Scheme for Boost PFC Operating in Both CCM and DCM
Abstract: Digital average current controllers for boost power factor correctors (PFCs) are usually designed for continuous conduction mode (CCM). However, discontinuous conduction mode (DCM) appears in the inductor current near the zero crossings of the input current at light loads, resulting in input current distortion. It is caused by inaccurate average current values obtained in DCM and by the linear CCM PFC controller that is unable to ensure input current shaping in DCM whereby the converter exhibits nonlinear characteristic. This paper proposes a simple digital DCM control scheme that is achieved with minimal changes to the CCM average current control structure. It is mathematically and computationally simple. The result of all arithmetic operations in the proposed current control loop to obtain the desired control output can be achieved in a single clock cycle, whereas other DCM control schemes require multiple clock cycles. Good input current shaping is achieved in both CCM and DCM with the proposed CCM-DCM digital controller.
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