A new on-time adjustment scheme for the reduction of input current distortion of critical-mode power factor correction boost converters

Tang, Shi-Huang; Cogălniceanu, Dan; Huang, Chun-Shih; Liu, Chih-Yuan; Liu, Kwang H.

doi:10.1109/ipec.2010.5542045

Cited by 18 publications

(21 citation statements)

References 15 publications

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“…This method is also empirical. There is an attempt to adjust the on-time analytically in [14]. This scheme senses the switch v ds voltage to determine the ZVS instant.…”

Section: B Perturbation On-time (Pot) Control Methodsmentioning

confidence: 99%

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Enhanced Variable On-time Control of Critical Conduction Mode Boost Power Factor Correction Converters

Kim¹,

Yi²,

Cho³

2014

Journal of Power Electronics

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Critical conduction mode boost power factor correction converters operating at the boundary of continuous conduction mode and discontinuous conduction mode have been widely used for power applications lower than 300W. This paper proposes an enhanced variable on-time control method for the critical conduction mode boost PFC converter to improve the total harmonic distortion characteristic. The inductor current, which varies according to the input voltage, is analyzed in detail and the optimal on-time is obtained to minimize the total harmonic distortion with a digital controller using a TMS320F28335. The switch on-time varies according to the input voltage based on the computed optimal on-time. The performance of the proposed control method is verified by a 100W PFC converter. It is shown that the optimized on-time reduces the total harmonic distortion about 52% (from 10.48% to 5.5%) at 220V when compared to the variable on-time control method.

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“…This method is also empirical. There is an attempt to adjust the on-time analytically in [14]. This scheme senses the switch v ds voltage to determine the ZVS instant.…”

Section: B Perturbation On-time (Pot) Control Methodsmentioning

confidence: 99%

“…By applying this variable in (5) and (12), the relationship between the input voltage and the input current can be obtained by (14).…”

Section: B Enhanced Variable On-time Control Methodsmentioning

confidence: 99%

Enhanced Variable On-time Control of Critical Conduction Mode Boost Power Factor Correction Converters

Kim¹,

Yi²,

Cho³

2014

Journal of Power Electronics

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“…the rising rate of the inductor voltage becomes smaller. As a result, a delay time occurs in the detection of the zero-crossing point and the PFC converter operates under the DCM [15]- [18].…”

Section: Introductionmentioning

confidence: 99%

A Novel Predictive Digital Controlled Sensorless PFC Converter under the Boundary Conduction Mode

Wang¹,

Maruta²,

Matsunaga³

et al. 2017

Journal of Power Electronics

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This paper presents a novel predictive digital control method for boundary conduction mode PFC converters without the need for detecting the inductor current. In the proposed method, the inductor current is predicted by analytical equations instead of being detected by a sensing-resistor. The predicted zero-crossing point of the inductor current is determined by the values of the input voltage, output voltage and predicted inductor current. Importantly, the prediction of zero-crossing point is achieved in just a single switching cycle. Therefore, the errors in predictive calculation caused by parameter variations can be compensated. The prediction of the zero-crossing point with the proposed method has been shown to have good accuracy. The proposed method also shows high stability towards variations in both the inductance and output power. Experimental results demonstrate the effectiveness of the proposed predictive digital control method for PFC converters.

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“…However, the ZVS/vS will cause current distortion which will increase input current harmonic and reduce power factor [6]- [8]. Many compensation methods were proposed to compensate the input current distortion caused by ZVS/VS [8]- [ 11].…”

Section: Introductionmentioning

confidence: 99%

“…Many compensation methods were proposed to compensate the input current distortion caused by ZVS/VS [8]- [ 11].…”

Section: Introductionmentioning

confidence: 99%

On-time compensation method for CRM/DCM Boost PFC converter

Chen

2013

2013 Twenty-Eighth Annual IEEE Applied Power Electronics Conference and Exposition (APEC)

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This paper proposes an on-time compensation method for CRMIDCM Boost PFC converter, which is based on the average current control without using multiplier. The proposed method can compensate the input current distortion caused by zero voltage switching (ZVS), valley switching (VS) and switching frequency limitation (SFL). A low-cost sample and hold (S/H) circuit is used to replace the multiplier in the average current control loop. By SIMPLIS simulation, a 160W CRMIDCM boost PFC converter with ZVS/VS and SFL function is used to verify the feasibility of the proposed on-time compensation method. Finally, heavy/light load and high/lowline voltage conditions will also be presented in this paper.

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A new on-time adjustment scheme for the reduction of input current distortion of critical-mode power factor correction boost converters

Cited by 18 publications

References 15 publications

Enhanced Variable On-time Control of Critical Conduction Mode Boost Power Factor Correction Converters

Enhanced Variable On-time Control of Critical Conduction Mode Boost Power Factor Correction Converters

A Novel Predictive Digital Controlled Sensorless PFC Converter under the Boundary Conduction Mode

On-time compensation method for CRM/DCM Boost PFC converter

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