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:
Jul. 03, 2001
Filed:
Sep. 09, 1999
Manuel Gärtner, München, DE;
Helmut Hertrich, Vaterstetten, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
The temperature sensor measures temperatures within a defined temperature measuring range. The sensor includes a reference voltage source with an output terminal to which a reference voltage is applied and which is connected to a first input terminal of a comparator. A series circuit of a semiconductor component with temperature-independent current characteristic and a reference component is connected between a first and a second supply voltage terminal. A temperature-dependent voltage is applied to a node common to the semiconductor component and the reference component. The temperature-dependent voltage is fed to a second input terminal of the comparator. The supply voltage is adjustable within a defined supply voltage range and, within a voltage range resulting from the supply voltage range of a voltage across the reference component, the reference component has a voltage-dependent current characteristic.