公开(公告)号：US09030794B2

公开(公告)日：2015-05-12

申请号：US14049459

申请日：2013-10-09

Applicant: Delta Electronics, Inc.

Inventor： Ching-Long Tsai ,  Yi-Hsin Leu ,  Ming-Tsung Hsieh ,  Der-Min Liu

IPC: H02H3/00 ,  H02H3/10 ,  H02H3/087

CPC classification number: H02H3/10 ,  H02H3/087

Abstract: An electronic fuse apparatus is connected between a power side and a system side. The electronic fuse apparatus mainly includes an electronic fuse, a short-circuit protection switch, a current-sensing module, and a digital control module. The current-sensing module detects an operating current which flows from the power side to the system side. The digital control module generates a control signal to control the electronic fuse. When the current-sensing module detects that the operating current is over-current, the digital control module generates the high-level control signal to turn off the electronic fuse, thus providing an over-current protection. When a short-circuit fault occurs at the system side, the short-circuit protection switch is turned on to turn off the electronic fuse, thus providing a short-circuit protection.

Abstract translation: 电源保险丝装置连接在电源侧和系统侧之间。 电子熔断器主要包括电子熔断器，短路保护开关，电流检测模块和数字控制模块。 电流检测模块检测从电源侧流向系统侧的工作电流。 数字控制模块产生控制信号以控制电子保险丝。 当电流检测模块检测到工作电流过电流时，数字控制模块产生高电平控制信号以关闭电子熔断器，从而提供过电流保护。 当系统侧发生短路故障时，短路保护开关导通，关闭电子保险丝，从而提供短路保护。