公开(公告)号：US09300209B2

公开(公告)日：2016-03-29

申请号：US14492137

申请日：2014-09-22

Applicant: SMA Solar Technology AG

Inventor： Burkard Mueller ,  Jens Friebe ,  Torsten Leifert

IPC: H02M7/04 ,  H02M3/158 ,  H02M7/538 ,  H02M7/797 ,  H02M1/42

CPC classification number: H02M3/158 ,  H02M1/4233 ,  H02M7/538 ,  H02M7/797 ,  Y02B70/126

Abstract: A half-bridge of a bidirectional converter is divided into a first and a second conduction path connected in parallel. In each of the conduction paths a switching element and a freewheeling diode are connected in series, and the center points of the conduction paths are connected via a second inductor. The second inductor is connected in series with a first inductor which is connected to the center point of the second conduction path. The half-bridge has two operating modes. In each of the two operating modes the switching element in one of the two conduction paths is clocked at a high frequency to cause a flow of energy in one of two directions between a pair of high voltage-side connections and a pair of low voltage-side connections to the half-bridge. The two switching elements are of different types, the switching element in the first conduction path causing higher switching losses.

Abstract translation: 双向转换器的半桥被分成并联连接的第一和第二导电路径。 在每个导通路径中，开关元件和续流二极管串联连接，并且导通路径的中心点经由第二电感器连接。 第二电感器与连接到第二导电路径的中心点的第一电感器串联连接。 半桥有两种操作模式。 在两种操作模式中的每一种中，两个传导路径中的一个中的开关元件以高频率计时，以在一对高压侧连接和一对低电压侧连接之间的两个方向中的一个方向上产生能量流， 侧连接到半桥。 两个开关元件是不同类型的，第一导电路径中的开关元件导致较高的开关损耗。

公开(公告)号：US20130272032A1

公开(公告)日：2013-10-17

申请号：US13907088

申请日：2013-05-31

Applicant: SMA Solar Technology AG

Inventor： Jens-Uwe Mueller ,  Torsten Leifert ,  Sebastian Heinze ,  Mario Willenberg

IPC: H02M3/335

CPC classification number: H02M3/33569 ,  H02J1/108 ,  H02J3/383 ,  H02M3/3387 ,  Y02B70/1433 ,  Y02E10/563

Abstract: The disclosure relates to a method for operating a DC/DC voltage converter comprising a first switching bridge with at least two first switches coupled to an input of the DC/DC voltage converter, a second switching bridge with at least two second switches coupled to an output of the DC/DC voltage converter, a transformer and at least one capacitor, wherein the first switching bridge is connected to the second switching bridge via the transformer. The first switches are switched such that a resonant circuit formed by the transformer and the at least one capacitor is operated in resonance, and the second switches are switched at the same clock frequency with a phase shift compared to the first switches, such that the second switches are switched prior to the first switches. The disclosure also relates to a DC/DC voltage converter comprising a control circuit for the first and second switches which is configured to carry out the method, and to a backup power system including such a DC/DC voltage converter.

Abstract translation: 本公开涉及一种用于操作DC / DC电压转换器的方法，其包括具有耦合到DC / DC电压转换器的输入的至少两个第一开关的第一开关桥，具有至少两个第二开关的第二开关桥， DC / DC电压转换器的输出，变压器和至少一个电容器，其中第一开关桥经由变压器连接到第二开关桥。 切换第一开关使得由变压器和至少一个电容器形成的谐振电路以共振方式工作，并且与第一开关相比，以相移相同的时钟频率切换第二开关，使得第二开关 开关在第一个开关之前切换。 本公开还涉及包括用于执行该方法的第一和第二开关的控制电路以及包括这种DC / DC电压转换器的备用电力系统的DC / DC电压转换器。

公开(公告)号：US20150085550A1

公开(公告)日：2015-03-26

申请号：US14492137

申请日：2014-09-22

Applicant: SMA Solar Technology AG

Inventor： Burkard Mueller ,  Jens Friebe ,  Torsten Leifert

IPC: H02M3/158 ,  H02M7/797

CPC classification number: H02M3/158 ,  H02M1/4233 ,  H02M7/538 ,  H02M7/797 ,  Y02B70/126

Abstract: A half-bridge of a bidirectional converter is divided into a first and a second conduction path connected in parallel. In each of the conduction paths a switching element and a freewheeling diode are connected in series, and the center points of the conduction paths are connected via a second inductor. The second inductor is connected in series with a first inductor which is connected to the center point of the second conduction path. The half-bridge has two operating modes. In each of the two operating modes the switching element in one of the two conduction paths is clocked at a high frequency to cause a flow of energy in one of two directions between a pair of high voltage-side connections and a pair of low voltage-side connections to the half-bridge. The two switching elements are of different types, the switching element in the first conduction path causing higher switching losses.

Abstract translation: 双向转换器的半桥被分成并联连接的第一和第二导电路径。 在每个导通路径中，开关元件和续流二极管串联连接，并且导通路径的中心点经由第二电感器连接。 第二电感器与连接到第二导电路径的中心点的第一电感器串联连接。 半桥有两种操作模式。 在两种操作模式中的每一种中，两个传导路径中的一个中的开关元件以高频率计时，以在一对高压侧连接和一对低电压侧连接之间的两个方向中的一个方向上产生能量流， 侧连接到半桥。 两个开关元件是不同类型的，第一导电路径中的开关元件导致较高的开关损耗。