Title:
【発明の名称】温度の測定装置及び方法
Document Type and Number:
Japanese Patent JP2000513816
Kind Code:
A
Abstract:
An arrangement for overload protection of a switch to which a load circuit and a control circuit are connected, wherein: the control circuit includes at least one logic circuit, a gate drive connected between an output of the logic circuit and a control input of the switch, a comparator, and a temperature sensor. The comparator compares a voltage drop across the switch to a predetermined threshold value, and the temperature sensor is a discrete component relative to at least the switch and has an associated threshold-value recognition. The logic circuit is responsive to the output of the comparator and the temperature sensor to cause the gate driver to switch off the switch when at least one limit value for the voltage drop across the switch, or a limit value for the permissible switch temperature, is exceeded. Moreover, the temperature sensor has its temperature-measurement point on an external electrical connection of the switch, with this electrical connection simultaneously serving for the thermal coupling of the temperature sensor and the switch.
Inventors:
Miyagi Masumi
Application Number:
JP53371698A
Publication Date:
October 17, 2000
Filing Date:
January 29, 1998
Export Citation:
Assignee:
DaimlerChrysler Actien Gezel Shaft
International Classes:
G01K7/01; H01L23/34; H03K17/08; H03K17/082; H02H5/04; (IPC1-7): G01K7/01
Attorney, Agent or Firm:
Toshio Yano (3 outside)