公开(公告)号：US20140146572A1

公开(公告)日：2014-05-29

申请号：US13845705

申请日：2013-03-18

Applicant: DELTA ELECTRONICS, INC.

Inventor： Yiqing YE ,  Chao YAN ,  Zhimin Suo

IPC: H02M3/28

CPC classification number: H02M3/28 ,  H02M3/337 ,  H02M7/487 ,  H02M2001/0074

Abstract: A power converter and a method for balancing voltages across input capacitors are disclosed in the present application. The power converter includes: two DC input terminals; a first input capacitor and a second input capacitor; a first bridge arm and a second bridge arm connected in series with one another; and an output circuit configured to generate a signal required by the power converter based on the signals at a midpoint of the first bridge arm and a midpoint of the second bridge arm. The power converter further includes: a first voltage balancing unit and a second balancing unit configured to reduce a voltage difference between the first input capacitor and the second input capacitor. The power converter provided by the present application solves the problem of imbalance in the voltages across the first input voltage and the second input voltage.

Abstract translation: 在本申请中公开了功率转换器和用于平衡输入电容器两端的电压的方法。 电源转换器包括：两个直流输入端子; 第一输入电容器和第二输入电容器; 第一桥臂和第二桥臂彼此串联连接; 以及输出电路，被配置为基于在所述第一桥臂的中点处的信号和所述第二桥臂的中点产生所述功率转换器所需的信号。 功率转换器还包括：第一电压平衡单元和第二平衡单元，被配置为减小第一输入电容器和第二输入电容器之间的电压差。 由本申请人提供的功率转换器解决了跨越第一输入电压和第二输入电压的电压不平衡的问题。

公开(公告)号：US09042122B2

公开(公告)日：2015-05-26

申请号：US13845705

申请日：2013-03-18

Applicant: DELTA ELECTRONICS, INC.

Inventor： Yiqing Ye ,  Chao Yan ,  Zhimin Suo

IPC: H02M3/28 ,  H02M3/337 ,  H02M7/487 ,  H02M1/00

CPC classification number: H02M3/28 ,  H02M3/337 ,  H02M7/487 ,  H02M2001/0074

Abstract: A power converter and a method for balancing voltages across input capacitors are disclosed in the present application. The power converter includes: two DC input terminals; a first input capacitor and a second input capacitor; a first bridge arm and a second bridge arm connected in series with one another; and an output circuit configured to generate a signal required by the power converter based on the signals at a midpoint of the first bridge arm and a midpoint of the second bridge arm. The power converter further includes: a first voltage balancing unit and a second balancing unit configured to reduce a voltage difference between the first input capacitor and the second input capacitor. The power converter provided by the present application solves the problem of imbalance in the voltages across the first input voltage and the second input voltage.

Abstract translation: 在本申请中公开了功率转换器和用于平衡输入电容器两端的电压的方法。 电源转换器包括：两个直流输入端子; 第一输入电容器和第二输入电容器; 第一桥臂和第二桥臂彼此串联连接; 以及输出电路，被配置为基于在所述第一桥臂的中点处的信号和所述第二桥臂的中点产生所述功率转换器所需的信号。 功率转换器还包括：第一电压平衡单元和第二平衡单元，被配置为减小第一输入电容器和第二输入电容器之间的电压差。 由本申请人提供的功率转换器解决了跨越第一输入电压和第二输入电压的电压不平衡的问题。