公开(公告)号：US09473017B2

公开(公告)日：2016-10-18

申请号：US14707015

申请日：2015-05-08

Applicant: DELTA ELECTRONICS, INC.

Inventor： Hong-Yuan Jin ,  De-Sheng Guo ,  Hong-Jian Gan ,  Jian-Ping Ying

IPC: H02M3/156 ,  H02M1/42 ,  G05F1/70 ,  H02M7/06

CPC classification number: H02M1/4208 ,  G05F1/70 ,  H02M1/4225 ,  H02M3/156 ,  H02M7/06 ,  Y02B70/126 ,  Y02P80/112

Abstract: A control circuit, control method used in a PFC circuit and the power source system thereof are disclosed herein. The control circuit comprises: a zero current detection circuit having a polarity detection circuit for outputting a first and a second digital signals and a signal conversion circuit for generating an analog signal; a feedback circuit for generating a driving pulse signal; and a pulse distribution circuit for distributing the driving pulse signal to a first and a second switches according to the first and the second digital signal. After a switch cycle, one of the first and the second switch performs an ON operation for the next switch cycle when the current flowing through the inductor decreases to a predetermined threshold value, wherein an ON time of the first switch is equal in each switch cycle, and an ON time of the second switch is equal in each switch cycle.

公开(公告)号：US09093923B2

公开(公告)日：2015-07-28

申请号：US13930854

申请日：2013-06-28

Applicant: DELTA ELECTRONICS, INC

Inventor： Jian-Ping Ying ,  Shao-Cai Ma ,  Hong-Jian Gan ,  Sen-Lin Wen

IPC: H02M7/5387 ,  H02M1/00 ,  H02M7/487 ,  H02M7/00

CPC classification number: H02M7/5387 ,  H02M1/088 ,  H02M7/003 ,  H02M7/487

Abstract: A three-level converter includes at least one phase bridge arm, each including an upper-half and a lower-half bridge arm circuit modules. The upper-half bridge arm circuit module includes a first and a second switch units that are in series connection, and a first diode unit. The lower-half bridge arm circuit module includes a third and a fourth switch units that are in series connection, and a second diode unit. The first and second diode units are connected to the neutral point of the capacitor unit; the second and third switch units are connected to the alternating-current terminal; The first and the fourth switch unit is respectively connected to the positive terminal and negative terminal of the direct-current bus; the capacitor unit is connected to the direct-current bus between the positive and negative terminals. The two modules are disposed side by side and facing each other.

Abstract translation: 三电平转换器包括至少一个相桥臂，每个相桥臂包括上半桥和下半桥臂电路模块。 上半桥臂电路模块包括串联连接的第一和第二开关单元和第一二极管单元。 下半桥臂电路模块包括串联连接的第三和第四开关单元和第二二极管单元。 第一和第二二极管单元连接到电容器单元的中性点; 第二和第三开关单元连接到交流端子; 第一和第四开关单元分别连接到直流母线的正极端子和负极端子; 电容器单元连接到正极和负极之间的直流母线。 这两个模块并排设置并相互面对。

公开(公告)号：US09189004B2

公开(公告)日：2015-11-17

申请号：US13759043

申请日：2013-02-05

Applicant: Delta Electronics, Inc.

Inventor： Hong-Yuan Jin ,  De-Sheng Guo ,  Hong-Jian Gan ,  Jian-Ping Ying

IPC: G05F1/00 ,  G05F1/70 ,  H02M1/42

CPC classification number: H02M1/4208 ,  G05F1/70 ,  H02M1/4225 ,  H02M3/156 ,  H02M7/06 ,  Y02B70/126 ,  Y02P80/112

Abstract: A control circuit, control method used in a PFC circuit and the power source system thereof are disclosed herein. The control circuit comprises: a zero current detection circuit having a polarity detection circuit for outputting a first and a second digital signals and a signal conversion circuit for generating an analog signal; a feedback circuit for generating a driving pulse signal; and a pulse distribution circuit for distributing the driving pulse signal to a first and a second switches according to the first and the second digital signal. After a switch cycle, one of the first and the second switch performs an ON operation for the next switch cycle when the current flowing through the inductor decreases to a predetermined threshold value, wherein an ON time of the first switch is equal in each switch cycle, and an ON time of the second switch is equal in each switch cycle.

Abstract translation: 本文公开了PFC电路中使用的控制电路，控制方法及其电源系统。 控制电路包括：零电流检测电路，具有用于输出第一和第二数字信号的极性检测电路和用于产生模拟信号的信号转换电路; 用于产生驱动脉冲信号的反馈电路; 以及脉冲分配电路，用于根据第一和第二数字信号将驱动脉冲信号分配到第一和第二开关。 在开关周期之后，当流过电感器的电流降低到预定阈值时，第一和第二开关中的一个开关对下一个开关周期执行ON操作，其中在每个开关周期中第一开关的导通时间相等 并且在每个开关周期中第二开关的导通时间相等。

公开(公告)号：US08884657B2

公开(公告)日：2014-11-11

申请号：US13732811

申请日：2013-01-02

Applicant: Delta Electronics, Inc.

Inventor： Hong-Jian Gan ,  Wei-Liang Fu ,  Ming Wang ,  Jian-Ping Ying

IPC: H03B1/00 ,  H03K3/00 ,  H03K17/691

CPC classification number: H03K17/691

Abstract: A switch-driving circuit suitable for driving a full-controlled power switch combination is disclosed. The switch-driving circuit includes a first pulse-width modulator, a high-voltage isolation pulse transformer module and a plurality of output modules. The high-voltage isolation pulse transformer module includes a magnetic core connected to multiple output modules in a one-to-many way, or includes multiple magnetic cores connected to multiple output modules in a one-to-one way. Each output module includes a second pulse-width modulator and a driving-power amplifier. The full-controlled power switch combination includes a plurality of full-controlled power switches. The driving-power amplifier is coupled between the second pulse-width modulator and one of the full-controlled power switches.

Abstract translation: 公开了一种适用于驱动全控电力开关组合的开关驱动电路。 开关驱动电路包括第一脉冲宽度调制器，高压隔离脉冲变压器模块和多个输出模块。 高压隔离脉冲变压器模块包括以一对多方式连接到多个输出模块的磁芯，或者包括以一对一的方式连接到多个输出模块的多个磁芯。 每个输出模块包括第二脉冲宽度调制器和驱动功率放大器。 全控制电源开关组合包括多个全控电力开关。 驱动功率放大器耦合在第二脉冲宽度调制器和全控制功率开关之一之间。

公开(公告)号：US20140254228A1

公开(公告)日：2014-09-11

申请号：US13930854

申请日：2013-06-28

Applicant: DELTA ELECTRONICS, INC

Inventor： Jian-Ping Ying ,  Shao-Cai Ma ,  Hong-Jian Gan ,  Sen-Lin Wen

IPC: H02M7/5387

CPC classification number: H02M7/5387 ,  H02M1/088 ,  H02M7/003 ,  H02M7/487

Abstract: A three-level converter includes at least one phase bridge arm, each including an upper-half and a lower-half bridge arm circuit modules. The upper-half bridge arm circuit module includes a first and a second switch units that are in series connection, and a first diode unit. The lower-half bridge arm circuit module includes a third and a fourth switch units that are in series connection, and a second diode unit. The first and second diode units are connected to the neutral point of the capacitor unit; the second and third switch units are connected to the alternating-current terminal; The first and the fourth switch unit is respectively connected to the positive terminal and negative terminal of the direct-current bus; the capacitor unit is connected to the direct-current bus between the positive and negative terminals. The two modules are disposed side by side and facing each other.

Abstract translation: 三电平转换器包括至少一个相桥臂，每个相桥臂包括上半桥和下半桥臂电路模块。 上半桥臂电路模块包括串联连接的第一和第二开关单元和第一二极管单元。 下半桥臂电路模块包括串联连接的第三和第四开关单元和第二二极管单元。 第一和第二二极管单元连接到电容器单元的中性点; 第二和第三开关单元连接到交流端子; 第一和第四开关单元分别连接到直流母线的正极端子和负极端子; 电容器单元连接到正极和负极之间的直流母线。 这两个模块并排设置并相互面对。

公开(公告)号：US20140049295A1

公开(公告)日：2014-02-20

申请号：US13732811

申请日：2013-01-02

Applicant: DELTA ELECTRONICS, INC.

Inventor： Hong-Jian Gan ,  Wei-Liang Fu ,  Ming Wang ,  Jian-Ping Ying

IPC: H03K17/691

CPC classification number: H03K17/691

Abstract: A switch-driving circuit suitable for driving a full-controlled power switch combination is disclosed. The switch-driving circuit includes a first pulse-width modulator, a high-voltage isolation pulse transformer module and a plurality of output modules. The high-voltage isolation pulse transformer module includes a magnetic core connected to multiple output modules in a one-to-many way, or includes multiple magnetic cores connected to multiple output modules in a one-to-one way. Each output module includes a second pulse-width modulator and a driving-power amplifier. The full-controlled power switch combination includes a plurality of full-controlled power switches. The driving-power amplifier is coupled between the second pulse-width modulator and one of the full-controlled power switches.

Abstract translation: 公开了一种适用于驱动全控电力开关组合的开关驱动电路。 开关驱动电路包括第一脉冲宽度调制器，高压隔离脉冲变压器模块和多个输出模块。 高压隔离脉冲变压器模块包括以一对多方式连接到多个输出模块的磁芯，或者包括以一对一的方式连接到多个输出模块的多个磁芯。 每个输出模块包括第二脉冲宽度调制器和驱动功率放大器。 全控制电源开关组合包括多个全控电力开关。 驱动功率放大器耦合在第二脉冲宽度调制器和全控制功率开关之一之间。