公开(公告)号：US09496797B2

公开(公告)日：2016-11-15

申请号：US14304693

申请日：2014-06-13

Applicant: Delta Electronics, Inc.

Inventor： Yuri Panov ,  Milan M. Jovanovic ,  Brian T. Irving

IPC: H02M3/335 ,  H02M1/40 ,  H02M11/00

CPC classification number: H02M3/33584 ,  H02M1/40 ,  Y10T307/352

Abstract: A flux-balancing method for an isolated bidirectional converter uses a flux-balancing control loop and a current-balancing control loop to control the DC components in the primary and secondary currents. The flux-balancing control loop keeps the average magnetizing current substantially zero and the current-balancing control loop keeps the average primary current or the average secondary current substantially zero. The flux-balancing loop adjusts the duty ratio of a set of switches in a corresponding bridge. The adjusted duty ratio is designed to substantially eliminate the DC component in the magnetizing current. The current-balancing loop keeps the average primary current and the average secondary current substantially zero, and adjusts the duty ratio of the switches in a corresponding bridge to eliminate the corresponding DC component.

Abstract translation: 用于隔离双向转换器的磁通平衡方法使用磁通平衡控制回路和电流平衡控制回路来控制初级和次级电流中的直流分量。 磁通平衡控制回路保持平均磁化电流基本为零，并且电流平衡控制回路保持平均初级电流或平均次级电流基本为零。 磁通平衡环路调整相应电桥中一组开关的占空比。 调节占空比被设计为基本上消除了磁化电流中的直流分量。 电流平衡环路保持平均初级电流和平均次级电流基本为零，并调整相应桥中开关的占空比以消除相应的直流分量。

公开(公告)号：US09263960B2

公开(公告)日：2016-02-16

申请号：US14027473

申请日：2013-09-16

Applicant: Delta Electronics, Inc.

Inventor： Milan M. Jovanović ,  Brian T. Irving

IPC: H02M3/335 ,  H02M3/337 ,  H02M1/10 ,  H02M1/00

CPC classification number: H02M3/337 ,  H02M1/10 ,  H02M2001/0058 ,  Y02B70/1491

Abstract: A power converter topology is adapted for efficiency according to input voltage, output voltage or output current conditions. Topology adaptation is achieved by control responsive to the input and output operating conditions, or to one or more external control signals. Transition between any two topologies is implemented by pulse width modulation in the two switches in one of two bridge legs of a full bridge converter. When transitioning from full-bridge to half-bridge topology, the duty ratio of one switch in one leg of the full bridge is increased, while simultaneously the duty ratio of the other switch in the same leg is reduced until one switch is continuously on, while the other switch is continuously off. The transition from the half-bridge to the full-bridge topology is accomplished by modulating the same switches such that, at the end of the transition, both switches operate with substantially the same duty cycle.

Abstract translation: 电源转换器拓扑适用于根据输入电压，输出电压或输出电流条件的效率。 拓扑适应通过响应于输入和输出操作条件的控制，或一个或多个外部控制信号来实现。 任何两种拓扑之间的转换通过全桥转换器的两个桥臂之一中的两个开关中的脉冲宽度调制来实现。 当从全桥转换到半桥拓扑结构时，全桥一个开关的占空比增加，同时另一个开关在同一条支路中的占空比减小，直到一个开关持续导通， 而另一个开关持续关闭。 从半桥到全桥拓扑的转换通过调制相同的开关来实现，使得在转换结束时，两个开关以基本上相同的占空比工作。

公开(公告)号：US20150078036A1

公开(公告)日：2015-03-19

申请号：US14027473

申请日：2013-09-16

Applicant: Delta Electronics, Inc.

Inventor： Milan M. Jovanovic ,  Brian T. Irving

IPC: H02M3/335

CPC classification number: H02M3/337 ,  H02M1/10 ,  H02M2001/0058 ,  Y02B70/1491

Abstract: A power converter topology is adapted for efficiency according to input voltage, output voltage or output current conditions. Topology adaptation is achieved by control responsive to the input and output operating conditions, or to one or more external control signals. Transition between any two topologies is implemented by pulse width modulation in the two switches in one of two bridge legs of a full bridge converter. When transitioning from full-bridge to half-bridge topology, the duty ratio of one switch in one leg of the full bridge is increased, while simultaneously the duty ratio of the other switch in the same leg is reduced until one switch is continuously on, while the other switch is continuously off. The transition from the half-bridge to the full-bridge topology is accomplished by modulating the same switches such that, at the end of the transition, both switches operate with substantially the same duty cycle.

Abstract translation: 电源转换器拓扑适用于根据输入电压，输出电压或输出电流条件的效率。 拓扑适应通过响应于输入和输出操作条件的控制，或一个或多个外部控制信号来实现。 任何两种拓扑之间的转换通过全桥转换器的两个桥臂之一中的两个开关中的脉冲宽度调制来实现。 当从全桥转换到半桥拓扑结构时，全桥一个开关的占空比增加，同时另一个开关在同一条支路中的占空比减小，直到一个开关持续导通， 而另一个开关持续关闭。 从半桥到全桥拓扑的转换通过调制相同的开关来实现，使得在转换结束时，两个开关以基本上相同的占空比工作。

公开(公告)号：US10153710B1

公开(公告)日：2018-12-11

申请号：US15658894

申请日：2017-07-25

Applicant: DELTA ELECTRONICS, INC.

Inventor： Peter Mantovanelli Barbosa ,  Laszlo Huber ,  Brian T. Irving

IPC: H02M7/15 ,  H02M7/04

Abstract: A power supply includes multiple power modules and a control circuit. Input terminals of the power modules are connected in star connection such that each power module receives a phase input voltage. Output terminals of the power modules are connected in parallel. Each power modules includes a first and a second converter. The first converter converts the phase input voltage into an intermediate bus voltage. The second converter outputs a DC supply voltage according to the intermediate bus voltage. The control circuit is coupled to the power modules and configured to output first and second driving signals to control the first and second converters in the power modules. A bus voltage average value is calculated by the control circuit according to the intermediate bus voltages of the power modules, and the first and the second driving signals for the power modules are generated according to the bus voltage average value.

公开(公告)号：US09331579B2

公开(公告)日：2016-05-03

申请号：US14488646

申请日：2014-09-17

Applicant: DELTA ELECTRONICS, INC.

Inventor： Peter Barbosa ,  Brian T. Irving ,  Chih-Chiang Chan ,  Yu-Ming Chang

IPC: H02M7/49 ,  H02M3/22 ,  H02M1/42 ,  H02M1/00

CPC classification number: H02M3/22 ,  H02M1/4208 ,  H02M1/4225 ,  H02M7/49 ,  H02M2001/0074

Abstract: A power supply includes power modules. Each of the power modules includes an input stage configured to convert an input voltage into an intermediate voltage, and an output stage configured to output a DC supply voltage according to the intermediate voltage. Input terminals of the input stages in the plurality of power modules are electrically connected in series, and the input stages are configured to be controlled with at least one first common control signal having a common duty cycle. Output terminals of the output stages in the plurality of power modules are electrically connected in parallel, and the output stages are configured to be controlled with at least one second common control signal having a common duty cycle. A method of supplying power is also disclosed herein.

Abstract translation: 电源包括电源模块。 每个功率模块包括被配置为将输入电压转换为中间电压的输入级，以及被配置为根据中间电压输出DC电源电压的输出级。 多个功率模块中的输入级的输入端子串联电连接，并且输入级被配置为由具有公共占空比的至少一个第一公共控制信号进行控制。 多个功率模块中的输出级的输出端子并联电连接，并且输出级被配置为利用具有公共占空比的至少一个第二公共控制信号进行控制。 本文还公开了一种供电方法。

公开(公告)号：US20150365005A1

公开(公告)日：2015-12-17

申请号：US14304693

申请日：2014-06-13

Applicant: Delta Electronics, Inc.

Inventor： Yuri Panov ,  Milan M. Jovanovic ,  Brian T. Irving

IPC: H02M3/335

CPC classification number: H02M3/33584 ,  H02M1/40 ,  Y10T307/352

Abstract: A flux-balancing method for an isolated bidirectional converter uses a flux-balancing control loop and a current-balancing control loop to control the DC components in the primary and secondary currents. The flux-balancing control loop keeps the average magnetizing current substantially zero and the current-balancing control loop keeps the average primary current or the average secondary current substantially zero. The flux-balancing loop adjusts the duty ratio of a set of switches in a corresponding bridge. The adjusted duty ratio is designed to substantially eliminate the DC component in the magnetizing current. The current-balancing loop keeps the average primary current and the average secondary current substantially zero, and adjusts the duty ratio of the switches in a corresponding bridge to eliminate the corresponding DC component.

Abstract translation: 用于隔离双向转换器的磁通平衡方法使用磁通平衡控制回路和电流平衡控制回路来控制初级和次级电流中的直流分量。 磁通平衡控制回路保持平均磁化电流基本为零，并且电流平衡控制回路保持平均初级电流或平均次级电流基本为零。 磁通平衡环路调整相应电桥中一组开关的占空比。 调节占空比被设计为基本上消除了磁化电流中的直流分量。 电流平衡环路保持平均初级电流和平均次级电流基本为零，并调整相应桥中开关的占空比以消除相应的直流分量。