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CCM下新型前置功率因数校正电路分析与设计

更新时间:2020-06-23 10:52:19 大小:302K 上传用户:六3无线电查看TA发布的资源 标签:功率因数校正 下载积分:5分 评价赚积分 (如何评价?) 打赏 收藏 评论(0) 举报

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为设计一种新型功率因数校正(PFc)控制集成电路,该文就Boost变换器CCM稳定工作状态,分析了前置PFC的工作原理,重点剖析了新型前置PFC的Boost变换器的占空比与输入电流的关系,以及对调制电压的要求。Matlab仿真验证了该前置PFC电路的占空比、调制电压与输入电流变化率、输入电流与输入电压的关系,进而,给出了该前置PFC电路控制芯片的核心部分——调制电压VM电路的设计原理及‰乘法器的IC实现电路。基于HSpice的整体系统仿真结果显示该电路能很好地实现功率因数校正功能。

To design a novel power factor correction (PFC) controller integrated circuit, the principle of the PFC pre-regulator is introduced based on the stable operating station of a boost converter in continuous current mode (CCM). The relationships between duty ratio and input current are analyzed in detail, and the requirement for the regulating voltage is also discussed. Matlab simulation results conf'mu the relationships among the duty-ratio, regulating voltage, slope of input current, input current, and output voltage of the boost converter. The mechanism of the key part of the PFC pre-regulator, the block of regulating voltage VM, is given out, and a kind of VM multiplier integrated circuit is prop...

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CCM下新型前置功率因数校正电路分析与设计.pdf 302K

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