公开(公告)号：US20210067039A1

公开(公告)日：2021-03-04

申请号：US16868873

申请日：2020-05-07

Applicant: DELTA ELECTRONICS, INC.

Inventor： Wen-Yu HUANG ,  Wei-Lun HSIN ,  Xin-Hung LIN

IPC: H02M3/158 ,  H02M3/07 ,  H02H9/04 ,  H01L29/866 ,  H02M1/32 ,  H02M1/08

Abstract: A flying capacitor converter includes an inductor, a first switch and a second switch, a first diode and a second diode, a first capacitor and a second capacitor, a flying capacitor, a third diode and a third capacitor, a fourth diode, and a fifth diode. The inductor is coupled to a first node. The first switch and the second switch are commonly connected to a second node. The first diode and the second diode are commonly connected to a third node. The first capacitor and the second capacitor are commonly connected to a fourth node. The flying capacitor is coupled to the second node and the third node. The third diode and the third capacitor are commonly connected to a fifth node. The fifth diode is coupled to the third node and the fourth node.

公开(公告)号：US20180062540A1

公开(公告)日：2018-03-01

申请号：US15491211

申请日：2017-04-19

Applicant: DELTA ELECTRONICS, INC.

Inventor： Wei-Lun HSIN ,  Xin-Hung LIN

IPC: H02M7/539 ,  H02M1/14

CPC classification number: H02M7/539 ,  H02J3/383 ,  H02M1/14 ,  H02M7/48 ,  H02M7/537

Abstract: A power conversion system includes an input capacitor group, a first-converting circuit, a second-converting circuit, a first filter circuit, a second filter circuit, a third filter circuit and a control circuit. The input capacitor group receives a direct-current-input voltage. The first-converting circuit and the second-converting circuit are connected to the input capacitor group in parallel. The first filter circuit includes a first output inductor and a second output inductor. The second filter circuit includes a third output inductor and a fourth output inductor. The third filter circuit is connected between the first filter circuit and the second filter circuit. The control circuit separately controls the first-converting circuit and the second-converting circuit. The first output inductor is connected to the first-converting circuit, the second-converting circuit and the second output inductor. The third output inductor is connected to the second-converting circuit, the first-converting circuit and the fourth output inductor.

公开(公告)号：US20170146589A1

公开(公告)日：2017-05-25

申请号：US15181902

申请日：2016-06-14

Applicant: DELTA ELECTRONICS, INC.

Inventor： Chih-Chang LI ,  Wei-Lun HSIN ,  Xin-Hung LIN

IPC: G01R31/12 ,  H01F38/20 ,  G01R31/40 ,  H01F27/28

Abstract: An arc detection apparatus (10) includes an arc detection circuit (102), a current transforming unit (128), a current input wire (108) and a current output wire (110). A power supply apparatus (20) sends an input current (Iin_a) to an electronic apparatus (30) through the current input wire (108), and the electronic apparatus (30) sends back an output current (Iin_b) to the power supply apparatus (20) through the current output wire (110), so that the current transforming unit (128) induces and generates an induced current (112). The current transforming unit (128) sends the induced current (112) to the arc detection circuit (102). The arc detection circuit (102) utilizes the induced current (112) to detect an arc.

公开(公告)号：US20160226397A1

公开(公告)日：2016-08-04

申请号：US14728072

申请日：2015-06-02

Applicant: DELTA ELECTRONICS, INC.

Inventor： Wei-Lun HSIN ,  Hong-Yi CHEN

IPC: H02M7/44

CPC classification number: H02M7/487

Abstract: A DC-to-AC conversion apparatus converts a DC input power source to a three-phase AC output power source. The DC-to-AC conversion apparatus includes an input capacitor assembly, a first conversion circuit, a second conversion circuit, and a control circuit. The input capacitor assembly is connected to the DC input power source, and has a neutral point. The neutral point is connected to a first phase sequence of the AC output power source. The first conversion circuit is connected a second phase sequence and a third phase sequence. The second conversion circuit is connected to the first phase sequence, the second phase sequence, and the third phase sequence. The control circuit generates a plurality of control signals to respectively control the first conversion circuit and the second conversion circuit, thus converting the DC input power source into the three-phase AC output power source.

Abstract translation: DC-AC转换装置将DC输入电源转换为三相交流输出电源。 DC-AC转换装置包括输入电容器组件，第一转换电路，第二转换电路和控制电路。 输入电容器组件连接到直流输入电源，并具有中性点。 中性点连接到交流输出电源的第一相序。 第一转换电路连接第二相序和第三相序。 第二转换电路连接到第一相序，第二相序和第三相序。 控制电路产生多个控制信号以分别控制第一转换电路和第二转换电路，从而将直流输入电源转换为三相交流输出电源。

公开(公告)号：US20150214859A1

公开(公告)日：2015-07-30

申请号：US14448210

申请日：2014-07-31

Applicant: DELTA ELECTRONICS, INC.

Inventor： Hong-Yi CHEN ,  Chen-Wei KU ,  Wei-Lun HSIN

IPC: H02M7/5387

CPC classification number: H02M7/53873 ,  H02M1/126 ,  H02M1/15 ,  H02M7/53871 ,  H02M7/5388

Abstract: A power conversion system mainly includes an input capacitor bank, a first conversion circuit, a second conversion circuit, and a control circuit. The input capacitor bank has a first capacitor and a second capacitor. The first capacitor and the second capacitor are connected to a neutral point and receive a DC input voltage. The first conversion circuit is connected in parallel to the input capacitor bank, and has a first branch, a second branch, and a first auxiliary branch. The second conversion circuit is connected in parallel to the input capacitor bank, and has a third branch, a fourth branch, and a second auxiliary branch. The control circuit produces a plurality of control signals to correspondingly control the first conversion circuit and the second conversion circuit so as to reduce leakage current caused by parasitic capacitance voltage.

Abstract translation: 电力转换系统主要包括输入电容器组，第一转换电路，第二转换电路和控制电路。 输入电容器组具有第一电容器和第二电容器。 第一电容器和第二电容器连接到中性点并接收直流输入电压。 第一转换电路并联连接到输入电容器组，并且具有第一分支，第二分支和第一辅助分支。 第二转换电路并联连接到输入电容器组，并且具有第三分支，第四分支和第二辅助分支。 控制电路产生多个控制信号以相应地控制第一转换电路和第二转换电路，以便减少由寄生电容电压引起的漏电流。

公开(公告)号：US20210111643A1

公开(公告)日：2021-04-15

申请号：US16846396

申请日：2020-04-12

Applicant: DELTA ELECTRONICS, INC.

Inventor： Wei-Lun HSIN ,  Xin-Hung LIN

IPC: H02M7/483 ,  H02M7/5387 ,  H02M1/32

Abstract: A power system includes a positive terminal, a negative terminal, a neutral point, and a conversion circuit including an AC terminal, two flying capacitors, and two switch modules. The two switch modules contain five switches respectively. The two second switches are connected in series and then connected in parallel with the first flying capacitor. The two first switches are connected in series at two ends of the two second switches respectively, and the third switch is connected between a first node between the two second switches and the AC terminal. The two fifth switches are connected in series and then connected in parallel with the second flying capacitor. The two fourth switches are connected in series at the two ends of the two fifth switches respectively, and the sixth switch is connected between a second node between the two fifth switches and the AC terminal.

公开(公告)号：US20160373026A1

公开(公告)日：2016-12-22

申请号：US14973829

申请日：2015-12-18

Applicant: DELTA ELECTRONICS, INC.

Inventor： Chih-Chang LI ,  Wei-Lun HSIN ,  Xin-Hung LIN

IPC: H02M7/537

CPC classification number: H02M7/537 ,  H02J3/26 ,  H02J3/40 ,  H02J2003/001 ,  H02M1/36 ,  Y02E10/56 ,  Y02E40/50

Abstract: A controller controls a first switch, a second switch, a third switch, a fourth switch, a fifth switch and a sixth switch, so that an alternating current electric power is fed to an alternating current electric grid. Moreover, the controller firstly turns on a first route including the first switch and the second switch, and then the controller turns on a second route including the third switch and the fourth switch if the second route meets a first specific condition, and then the controller turns on a third route including the fifth switch and the sixth switch if the third route meets a second specific condition.

Abstract translation: 控制器控制第一开关，第二开关，第三开关，第四开关，第五开关和第六开关，使得交流电力被馈送到交流电网。 此外，控制器首先接通包括第一开关和第二开关的第一路线，然后如果第二路径满足第一特定条件，则控制器接通包括第三开关和第四开关的第二路线，然后控制器 如果第三路线满足第二特定条件，则打开包括第五开关和第六开关的第三路线。

公开(公告)号：US20150103575A1

公开(公告)日：2015-04-16

申请号：US14108438

申请日：2013-12-17

Applicant: Delta Electronics, Inc.

Inventor： Chen-Wei KU ,  Wei-Lun HSIN

IPC: H02M7/5387

CPC classification number: H02M7/5387 ,  H02M7/48 ,  Y02E10/56

Abstract: A solar photovoltaic power conversion system is provided to convert a DC input voltage into an AC output voltage, which mainly includes an input capacitor bank, a first switching circuit, a second switching circuit, a first filtering circuit, a second filtering circuit, and a control circuit. The first switching circuit has a first power switch and a second power switch. The second switching circuit has a third power switch and a fourth power switch. The control circuit produces a first control signal, a second control signal, a third control signal, and a fourth control signal to respectively control the first power switch, the second power switch, the third power switch, and the fourth power switch so as to reduce leakage current of the DC input voltage caused by parasitic capacitance voltage.

Abstract translation: 提供一种将DC输入电压转换为AC输出电压的太阳能光伏电力转换系统，其主要包括输入电容器组，第一开关电路，第二开关电路，第一滤波电路，第二滤波电路和 控制电路。 第一开关电路具有第一电源开关和第二电源开关。 第二开关电路具有第三电源开关和第四电源开关。 控制电路产生第一控制信号，第二控制信号，第三控制信号和第四控制信号，以分别控制第一电源开关，第二电源开关，第三电源开关和第四电源开关，以便 降低由寄生电容电压引起的直流输入电压的漏电流。