公开(公告)号：US20140055899A1

公开(公告)日：2014-02-27

申请号：US13974517

申请日：2013-08-23

Applicant: dSPACE digital signal processing and control engineering GmbH

Inventor： Paul GRUBER

IPC: H02H1/00

CPC classification number: H02H1/0007 ,  H02H3/08 ,  H02H9/025

Abstract: An electronic protection device for protecting at least one electrical load, connectable to the protection device, whereby the electronic protection device has an input terminal and an output terminal, and whereby the protection device includes a fuse element, which is thermally self-resetting, and whereby the fuse element is provided and set up to conduct or limit a first current as a function of a fuse element temperature, whereby a limiting component is provided to limit the first current, and whereby the limiting component has a first transistor that is connected in series to the fuse element and a monitoring circuit that influences the first transistor. The monitoring circuit blocks the first transistor when the first current reaches or exceeds a predefined maximum current value and unblocks it when the first current reaches or falls below a predefined reset current value.

Abstract translation: 一种电子保护装置，用于保护可连接到保护装置的至少一个电负载，由此电子保护装置具有输入端子和输出端子，并且由此保护装置包括热自复位保险丝元件，以及 由此提供熔丝元件并将其设置为导通或限制作为熔丝元件温度的函数的第一电流，由此提供限制部件以限制第一电流，并且由此限制部件具有连接在第一晶体管 串联到熔丝元件和影响第一晶体管的监控电路。 当第一电流达到或超过预定义的最大电流值时，监控电路阻止第一晶体管，并且当第一电流达到或低于预定义的复位电流值时，监控电路解除阻塞。