公开(公告)号：US10727664B2

公开(公告)日：2020-07-28

申请号：US16410151

申请日：2019-05-13

Applicant: Delta Electronics, Inc.

Inventor： Teng Liu ,  Yong Zeng ,  Jianping Ying ,  Ming Wang ,  Xiaobo Huang ,  Jun Liu

IPC: H02H7/122 ,  H03K17/082 ,  H05K7/20 ,  H02M1/088 ,  H02M1/36 ,  H02M7/537 ,  H03K17/08

Abstract: The present disclosure provides a temperature protection circuit for a power converter, including a plurality of temperature protection branches, each of the temperature protection branches comprises a resistor, a voltage source, a temperature switch, and an isolation transformer, and each of the temperature protection branches corresponds to one of the power semiconductor switch blocks, and a first end of the resistor of each of the temperature protection branches is coupled to an output electrode of the power semiconductor switch block, and a second end of the resistor is coupled to a first end of the voltage source and coupled to a first end of the contact of the temperature switch via a primary winding of the isolation transformer, a second end of the voltage source and a second end of the contact of the temperature switch are respectively coupled to the potential midpoint of the power converter.

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：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。

公开(公告)号：US09287863B2

公开(公告)日：2016-03-15

申请号：US13790737

申请日：2013-03-08

Applicant: DELTA ELECTRONICS, INC.

Inventor： Ming Wang ,  Wei-Liang Fu ,  Qing Cong ,  Jian-Ping Ying ,  Bing Zhang

IPC: H03B1/00 ,  H03K3/00 ,  H03K17/16

CPC classification number: H03K17/16 ,  H03K17/162 ,  H03K17/691

Abstract: A switch driving circuit for driving a full-controlled power switch is disclosed, including a pulse-width modulation unit, a pulse transformer, an anti-interference module, a pulse-width demodulation unit and a driving-power amplifier. The pulse-width modulation unit converts a driving input signal into a positive-negative narrow pulse-width signal. The anti-interference module is coupled to the secondary side and the positive-negative narrow pulse-width signal includes multiple positive pulses and negative pulses. The anti-interference module filters out the ones from the positive pulses and negative pulses of which the pulse amplitude does not reach an effective threshold, and meanwhile the anti-interference module suppress a common-mode noise caused by a high voltage transient variation at a moment when the full-controlled power switch is turned on or off. The pulse-width demodulation unit converts the filtered positive-negative narrow pulse-width signal into a driving output signal.

Abstract translation: 公开了一种用于驱动全控制电源开关的开关驱动电路，包括脉宽调制单元，脉冲变压器，抗干扰模块，脉冲宽度解调单元和驱动功率放大器。 脉冲宽度调制单元将驱动输入信号转换为正负窄脉冲宽度信号。 抗干扰模块耦合到次级侧，正 - 负窄脉冲宽度信号包括多个正脉冲和负脉冲。 抗干扰模块从正脉冲和脉冲幅度未达到有效阈值的负脉冲滤除滤波器，同时抗干扰模块抑制由高电压瞬态变化引起的共模噪声 当全控制电源开关打开或关闭时的时刻。 脉冲宽度解调部将滤波后的正负窄脉冲宽度信号变换为驱动输出信号。

公开(公告)号：US10587258B2

公开(公告)日：2020-03-10

申请号：US16445483

申请日：2019-06-19

Applicant: Delta Electronics, Inc.

Inventor： Jianping Ying ,  Ming Wang ,  Xiaobo Huang ,  Jun Liu ,  Zhiming Hu

IPC: H03K17/082 ,  H03K17/61 ,  H03K17/567

Abstract: A drive circuit of a power semiconductor switch includes: a pulse modulation circuit having a first terminal configured to receive a fault signal, an isolation transformer, and a pulse demodulation circuit; when there is no fault signal being received, the pulse modulation circuit outputs a first turn on pulse signal and a first turn off pulse signal via the isolation transformer and the pulse demodulation circuit to charge/discharge a gate capacitor of the power semiconductor switch, so as to drive the power semiconductor switch to be turned on and turned off at a first speed; when the fault signal is received, the pulse modulation circuit outputs a second turn off pulse signal via the isolation transformer and the pulse demodulation circuit to discharge the gate capacitor of the power semiconductor switch, so as to drive the power semiconductor switch to be turned off at a second speed.

公开(公告)号：US10886912B2

公开(公告)日：2021-01-05

申请号：US16391436

申请日：2019-04-23

Applicant: Delta Electronics,Inc.

Inventor： Jianping Ying ,  Ming Wang ,  Xiaobo Huang ,  Jun Liu

IPC: H03K3/00 ,  H03K17/16

Abstract: The present disclosure provides a gate circuit and a gate drive circuit for a power semiconductor switch, including: a zener diode and a charge dissipation circuit. A first end of the zener diode is connected to a first end of the charge dissipation circuit and a gate of the power semiconductor switch, a second end of the zener diode is connected to a second end of the charge dissipation circuit and a second end of the power semiconductor switch. A first parasitic capacitor is formed between a first end and the gate of the power semiconductor switch, and a second parasitic capacitor is formed between the gate and the second end of the power semiconductor switch.