公开(公告)号：US09391445B2

公开(公告)日：2016-07-12

申请号：US14331622

申请日：2014-07-15

Applicant: Huawei Device Co., Ltd.

Inventor： Liangang Sun ,  Wei Di ,  Mei Zou ,  Yiyong Pu

IPC: H02H1/00 ,  H02H7/12 ,  H02H9/06 ,  H02G13/00 ,  H05B41/285 ,  H02H3/20 ,  H01F27/34 ,  H02H7/04

CPC classification number: H02H7/12 ,  H01F27/343 ,  H02G13/80 ,  H02H3/20 ,  H02H7/04 ,  H02H9/06 ,  H05B41/2851

Abstract: A surge protection circuit, a switching power supply, and a surge protection method are provided that can prevent a power supply from being damaged by a high energy surge voltage discharged from a terminal device to an output end of a power supply. The surge protection circuit is applied to the switching power supply. The power supply includes a transformer. The circuit includes a surge protection tube. When a surge voltage on the terminal device is greater than a discharge voltage of the surge protection tube, the surge protection tube is conducted and discharges the surge voltage on the terminal device to the ground wire end at the high voltage side of the transformer. The embodiments of the present invention are applicable to the field of electronic technologies.

Abstract translation: 提供一种浪涌保护电路，开关电源和浪涌保护方法，其可以防止由终端设备向电源的输出端放电的高能量浪涌电压而损坏电源。 浪涌保护电路适用于开关电源。 电源包括一个变压器。 该电路包括浪涌保护管。 当端子装置上的浪涌电压大于浪涌保护管的放电电压时，浪涌保护管被传导，并将端子装置上的浪涌电压放电到变压器的高压侧的接地端。 本发明的实施例可应用于电子技术领域。

公开(公告)号：US20140334043A1

公开(公告)日：2014-11-13

申请号：US14331622

申请日：2014-07-15

Applicant: Huawei Device Co., Ltd.

Inventor： Liangang Sun ,  Wei Di ,  Mei Zou ,  Yiyong Pu

IPC: H02H7/12

CPC classification number: H02H7/12 ,  H01F27/343 ,  H02G13/80 ,  H02H3/20 ,  H02H7/04 ,  H02H9/06 ,  H05B41/2851

Abstract: A surge protection circuit, a switching power supply, and a surge protection method are provided that can prevent a power supply from being damaged by a high energy surge voltage discharged from a terminal device to an output end of a power supply. The surge protection circuit is applied to the switching power supply. The power supply includes a transformer. The circuit includes a surge protection tube. When a surge voltage on the terminal device is greater than a discharge voltage of the surge protection tube, the surge protection tube is conducted and discharges the surge voltage on the terminal device to the ground wire end at the high voltage side of the transformer. The embodiments of the present invention are applicable to the field of electronic technologies.

Abstract translation: 提供一种浪涌保护电路，开关电源和浪涌保护方法，其可以防止由终端设备向电源的输出端放电的高能量浪涌电压而损坏电源。 浪涌保护电路适用于开关电源。 电源包括一个变压器。 该电路包括浪涌保护管。 当端子装置上的浪涌电压大于浪涌保护管的放电电压时，浪涌保护管被传导，并将端子装置上的浪涌电压放电到变压器的高压侧的接地端。 本发明的实施例可应用于电子技术领域。