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1. 发明申请

US20070268051A1 Modulation methods and apparatus for reducing common mode noise 有权
标题翻译：用于降低共模噪声的调制方法和装置
公开(公告)号：US20070268051A1
公开(公告)日：2007-11-22
申请号：US11435651
申请日：2006-05-17
申请人： Russel J. Kerkman , Qiang Yin , Haihui Lu
发明人： Russel J. Kerkman , Qiang Yin , Haihui Lu
IPC分类号： H03K3/017
CPC分类号： H02M7/5387 , H02M1/44 , H02M5/458 , H02M2001/123
摘要： A method and apparatus for reducing common mode noise in a three phase pulse width modulated (PWM) system, the method comprising the steps of receiving the first, second and third modulating waveforms, identifying one of the modulating waveforms that is at least one of instantaneously the maximum and instantaneously the minimum of the modulating waveforms as a first identified waveform, wherein comparison of the first identified waveform to the carrier signal would generate a first on-off pulse sequence associated with a phase corresponding to the first identified waveform, generating switch control signals associated with the phase corresponding to the first identified waveform that cause a modified on-off pulse sequence that is phase shifted from the first pulse sequence, using the second and third modulating waveforms to generate second and third on-off pulse sequences corresponding to the second and third phases and providing the modified pulse sequence and the second and third pulse sequences to the one of the inverter and the converter.
摘要翻译：一种用于降低三相脉宽调制（PWM）系统中的共模噪声的方法和装置，该方法包括以下步骤：接收第一，第二和第三调制波形，识别至少一个瞬时调制波形之一最大和瞬时调制波形的最小值作为第一识别波形，其中第一识别波形与载波信号的比较将产生与对应于第一识别波形的相位相关联的第一开 - 关脉冲序列，产生切换控制使用第二和第三调制波形产生与对应于第一识别波形的相位相关的信号，该第二和第三调制波形产生与第一脉冲序列对应的第二和第三开关脉冲序列，第二和第三相，并提供修改的脉冲序列和第二和第三脉冲序列到逆变器和转换器之一。

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