公开(公告)号：US20140232364A1

公开(公告)日：2014-08-21

申请号：US13963087

申请日：2013-08-09

Applicant: ST-Ericsson SA

Inventor： Matthieu Thomas ,  Patrik Arno ,  Vladimir Molata ,  Ondrej Tlaskal

IPC: H02M3/158

CPC classification number: H02M3/1588 ,  H02M7/483 ,  H02M2001/0003 ,  H02M2001/0009 ,  Y02B70/1466

Abstract: A power conversion circuit uses smaller, cheaper, and faster analog and digital circuits, e.g., buffers, comparators, and processing circuits, to provide the information necessary to control a multilevel power converter faster, cheaper, and with a smaller footprint than conventional techniques. For example, a current detection circuit indirectly measures a direction of a current through an inductor connected between midpoint node and an output node of a multilevel power converter based on comparisons between voltages associated with the multilevel power converter. A capacitor voltage detection detects a capacitor voltage across the flying capacitor to generate a logic signal based on a comparison between the capacitor voltage and a first reference voltage. A control circuit selects an operating state of the multilevel power converter to regulate a first capacitor voltage across the first capacitor based on the indirectly measured direction of the inductor current, the logic signal, and an input command signal.

Abstract translation: 功率转换电路使用更小，更便宜和更快的模拟和数字电路，例如缓冲器，比较器和处理电路，以提供与传统技术相比更快，更便宜和更小占地面积来控制多电平功率转换器所需的信息。 例如，电流检测电路基于与多电平功率转换器相关联的电压的比较，间接地测量通过连接在多电平电力转换器的中点节点和输出节点之间的电感器的电流的方向。 电容器电压检测检测跨越飞行电容器的电容器电压，以基于电容器电压和第一参考电压之间的比较来产生逻辑信号。 控制电路基于间接测量的电感器电流方向，逻辑信号和输入命令信号，选择多电平电力转换器的工作状态来调节跨第一电容器的第一电容器电压。

公开(公告)号：US09160232B2

公开(公告)日：2015-10-13

申请号：US13963087

申请日：2013-08-09

Applicant: ST-Ericsson SA

Inventor： Matthieu Thomas ,  Patrik Arno ,  Vladimir Molata ,  Ondrej Tlaskal

IPC: H02M3/158 ,  H02M7/483 ,  H02M1/00

CPC classification number: H02M3/1588 ,  H02M7/483 ,  H02M2001/0003 ,  H02M2001/0009 ,  Y02B70/1466

Abstract: A power conversion circuit uses smaller, cheaper, and faster analog and digital circuits, e.g., buffers, comparators, and processing circuits, to provide the information necessary to control a multilevel power converter faster, cheaper, and with a smaller footprint than conventional techniques. For example, a current detection circuit indirectly measures a direction of a current through an inductor connected between midpoint node and an output node of a multilevel power converter based on comparisons between voltages associated with the multilevel power converter. A capacitor voltage detection detects a capacitor voltage across the flying capacitor to generate a logic signal based on a comparison between the capacitor voltage and a first reference voltage. A control circuit selects an operating state of the multilevel power converter to regulate a first capacitor voltage across the first capacitor based on the indirectly measured direction of the inductor current, the logic signal, and an input command signal.

Abstract translation: 功率转换电路使用更小，更便宜和更快的模拟和数字电路，例如缓冲器，比较器和处理电路，以提供与传统技术相比更快，更便宜和更小占地面积来控制多电平功率转换器所需的信息。 例如，电流检测电路基于与多电平功率转换器相关联的电压的比较，间接地测量通过连接在多电平电力转换器的中点节点和输出节点之间的电感器的电流的方向。 电容器电压检测检测跨越飞行电容器的电容器电压，以基于电容器电压和第一参考电压之间的比较来产生逻辑信号。 控制电路基于间接测量的电感器电流方向，逻辑信号和输入命令信号，选择多电平电力转换器的工作状态来调节跨第一电容器的第一电容器电压。