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1. 发明申请

WO2009074172A1 SIGNAL CONVERTER FOR GENERATING SWITCH DRIVE SIGNALS FOR A MULTI-LEVEL CONVERTER, DRIVE CIRCUIT, PULSE-WIDTH-MODULATION SIGNAL GENERATOR, MULTI-LEVEL CONVERTER, METHODS AND COMPUTER PROGRAM 审中-公开
标题翻译：用于产生用于多电平转换器，驱动电路，脉宽调制信号发生器，多电平转换器，方法和计算机程序的开关驱动信号的信号转换器
公开(公告)号：WO2009074172A1
公开(公告)日：2009-06-18
申请号：PCT/EP2007/010899
申请日：2007-12-12
申请人： MITSUBISHI ELECTRIC EUROPE B.V. , HONSBERG, Marco , RADKE, Thomas
发明人： HONSBERG, Marco , RADKE, Thomas
IPC分类号： H02M7/487
CPC分类号： H02M7/487 , H02M7/5395
摘要： A signal converter for generating switch drive signals for a multi-level converter comprises an input for a first pulse-width-modulation signal and a second pulse-width-modulation signal and an input for a polarity signal indicating a first polarity or a second polarity. The signal converter comprises four outputs for four switch drive signals for driving four switches of the multi-level converter. Also, the signal converter comprises a logic circuit for driving the switch drive signals in dependence on the polarity signal. The logic is configured to drive the switch drive signals in dependence on the polarity signal. The logic is configured such that, in the presence of the first polarity, the logic is operational to set the first switch drive signal according to one of the pulse-width-modulation input signals, to set the third switch drive signal according to another of the pulse width modulation input signals, to set the second switch drive signal to a given signal level indicating a closed state of the second switch and to set the fourth switch drive signal to a given signal level indicating an opened state of the fourth switch. The logic is configured such that, in the presence of the second polarity, the logic is operational to set the second switch drive signal according to one of the pulse-width-modulation input signals, to set the fourth switch drive signal according to another of the pulse-width-modulation input signals, to set the first switch drive signal to a given signal level indicating an opened state of the first switch, and to set the third switch drive signal to a given signal level indicating a closed state of the third switch.
摘要翻译：用于产生用于多电平转换器的开关驱动信号的信号转换器包括用于第一脉冲宽度调制信号和第二脉冲宽度调制信号的输入以及用于指示第一极性或第二极性的极性信号的输入。信号转换器包括用于驱动多电平转换器的四个开关的四个开关驱动信号的四个输出。此外，信号转换器包括用于根据极性信号驱动开关驱动信号的逻辑电路。该逻辑被配置为根据极性信号来驱动开关驱动信号。逻辑被配置为使得在存在第一极性的情况下，逻辑可操作以根据脉冲宽度调制输入信号中的一个来设置第一开关驱动信号，以根据第二开关驱动信号的另一个来设置第三开关驱动信号脉冲宽度调制输入信号，以将第二开关驱动信号设置为指示第二开关的闭合状态的给定信号电平，并将第四开关驱动信号设置为指示第四开关的打开状态的给定信号电平。逻辑被配置为使得在存在第二极性的情况下，逻辑可操作以根据脉冲宽度调制输入信号之一来设置第二开关驱动信号，以根据第二开关驱动信号的另一个来设置第四开关驱动信号脉冲宽度调制输入信号，以将第一开关驱动信号设置为指示第一开关的打开状态的给定信号电平，并将第三开关驱动信号设置为指示第三开关驱动信号的闭合状态的给定信号电平开关。

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