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公开(公告)号：US20150318788A1
公开(公告)日：2015-11-05
申请号：US14649293
申请日：2012-12-04
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M1/08 , H02M3/07 , H02M7/487 , H02M2001/0006 , H03K17/567 , H03K2217/0081
摘要： A neutral point clamped, multilevel level converter including a DC voltage link having a positive rail and a negative rail; a phase leg coupled to an AC node, the phase leg having a first switch and a second switch in series between the negative rail and the AC node, the phase leg having a third switch and a fourth switch in series between the positive rail and the AC node; and a gate drive power supply having a charge pump section, the charge pump section generating a first gate drive voltage for the first switch and a second gate drive voltage for the second switch.
摘要翻译： 一种中性点钳位的多电平电平转换器，包括具有正轨和负轨的直流电压链路; 耦合到AC节点的相位支路，所述相位支路具有串联在所述负导轨和所述AC节点之间的第一开关和第二开关，所述相位支路具有串联在所述正轨和所述AC节点之间的第三开关和第四开关， 交流节点; 以及具有电荷泵部分的栅极驱动电源，所述电荷泵部分产生用于所述第一开关的第一栅极驱动电压和用于所述第二开关的第二栅极驱动电压。
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公开(公告)号：US20170359000A1
公开(公告)日：2017-12-14
申请号：US15689509
申请日：2017-08-29
摘要： A neutral point clamped, multilevel level converter includes a DC voltage link; a first capacitor coupling one side of the DC link to a neutral point; a second capacitor coupling another side of the DC link to the neutral point; a plurality of phase legs, each phase leg including switches, each phase leg coupled to an AC node; a current sensor associated with each AC node; and a controller generating a PWM signal to control the switches, the controller generating a current zero sequence component in response to current sensed at each of the current sensors, the controller adjusting a modulation index signal in response to the current zero sequence component to produce the PWM signal.
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公开(公告)号：US09673713B2
公开(公告)日：2017-06-06
申请号：US14649293
申请日：2012-12-04
IPC分类号： H02M7/5387 , H02M7/521 , H02M3/335 , H02M7/487 , H03K17/567 , H02M1/08 , H02M3/07 , H02M1/00
CPC分类号： H02M3/33507 , H02M1/08 , H02M3/07 , H02M7/487 , H02M2001/0006 , H03K17/567 , H03K2217/0081
摘要： A neutral point clamped, multilevel level converter including a DC voltage link having a positive rail and a negative rail; a phase leg coupled to an AC node, the phase leg having a first switch and a second switch in series between the negative rail and the AC node, the phase leg having a third switch and a fourth switch in series between the positive rail and the AC node; and a gate drive power supply having a charge pump section, the charge pump section generating a first gate drive voltage for the first switch and a second gate drive voltage for the second switch.
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公开(公告)号：US09998031B2
公开(公告)日：2018-06-12
申请号：US15689509
申请日：2017-08-29
摘要： A neutral point clamped, multilevel level converter includes a DC voltage link; a first capacitor coupling one side of the DC link to a neutral point; a second capacitor coupling another side of the DC link to the neutral point; a plurality of phase legs, each phase leg including switches, each phase leg coupled to an AC node; a current sensor associated with each AC node; and a controller generating a PWM signal to control the switches, the controller generating a current zero sequence component in response to current sensed at each of the current sensors, the controller adjusting a modulation index signal in response to the current zero sequence component to produce the PWM signal.
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公开(公告)号：US09755546B2
公开(公告)日：2017-09-05
申请号：US14646465
申请日：2012-11-21
摘要： A neutral point clamped, multilevel level converter includes a DC voltage link; a first capacitor coupling one side of the DC link to a neutral point; a second capacitor coupling another side of the DC link to the neutral point; a plurality of phase legs, each phase leg including switches, each phase leg coupled to an AC node; a current sensor associated with each AC node; and a controller generating a PWM signal to control the switches, the controller generating a current zero sequence component in response to current sensed at each of the current sensors, the controller adjusting a modulation index signal in response to the current zero sequence component to produce the PWM signal.
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