The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 07, 2003
Filed:
Dec. 08, 1999
Peter Hille, Darmstadt, DE;
DaimlerChrysler AG, Stuttgart, DE;
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.