A Buck Power Factor Correction Converter with Predictive Quadratic Sinusoidal Current Modulation and Line Voltage Reconstruction
A Buck Power Factor Correction Converter with Predictive Quadratic Sinusoidal Current Modulation and Line Voltage Reconstruction
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DOI：
10.1109/tie.2016.2527630
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发表时间：
2016-09
影响因子：
7.7
通讯作者：
Shang-Hsien Yang;Che-Hao Meng;Chao-Chang Chiu;Chih-Wei Chang;Ke-Horng Chen;Ying-Hsi Lin;Shian-Ru Lin;Tsung-Yen Tsai
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文献类型：
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作者：
Shang-Hsien Yang;Che-Hao Meng;Chao-Chang Chiu;Chih-Wei Chang;Ke-Horng Chen;Ying-Hsi Lin;Shian-Ru Lin;Tsung-Yen Tsai
工作在连续导通模式（CCM）下的降压型功率因数校正（PFC）变换器会受到死区的影响，死区会引入与输入线电压相关的失真。这种现象限制了可实现的最大功率因数（PF）和最小总谐波失真（THD）。通过推导出实现预测线电压重建（PLVR）的方法，可以减轻死区的影响。利用二次正弦电流调制（PS2CM）的预测，线电流被整形为与输入线电压同相的正弦波形，这对控制器的性能至关重要。因此，所提出的CCM降压PFC可以同时实现高PF、低THD和效率。采用0.5 μ mBCD工艺制作了测试芯片。实验结果表明，在110 Vac时，峰值PF为0.95，峰值效率为98%。
A buck power factor correction (PFC) converter operating in continuous conduction mode (CCM) is influenced by the dead zone, which introduces distortion related to the input line voltage. Such phenomenon limits the maximum power factor (PF) and the minimum total harmonic distortion (THD) achievable. By deriving a methodology to achieve predictive line voltage reconstruction (PLVR), the influence of the dead zone is mitigated. With the prediction of quadratic sinusoidal current modulation (PS2CM), the line current is shaped into sinusoid waveform that is in-phase with input line voltage, crucial for. Consequently, the proposed CCM buck PFC can achieve high PF, low THD, and efficiency simultaneously. A test chip was fabricated in 0.5-μm Bipolar-CMOS-DMOS (BCD) process. The experimental results show a peak PF of 0.95 and a peak efficiency of 98% at 110 Vac.