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:
Mar. 05, 2024
Filed:
Jun. 05, 2019
Autonetworks Technologies, Ltd., Yokkaichi, JP;
Sumitomo Wiring Systems, Ltd., Yokkaichi, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Ryunosuke Muraoka, Yokkaichi, JP;
Yuuki Sugisawa, Yokkaichi, JP;
AutoNetworks Technologies, Ltd., Yokkaichi, JP;
Sumitomo Wiring Systems, Ltd., Yokkaichi, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
An in-vehicle temperature detection circuit includes a temperature detecting unit including a plurality of individual detecting units, each having a first resistor and a temperature detecting element connected in series between a first conductive path to which a predetermined source voltage is applied and a reference conductive path. A plurality of bipolar transistors are connected to a corresponding individual detecting units. A second conductive path is electrically connected to each of emitters of the bipolar transistors. In each bipolar transistor, a base is electrically connected to a third conductive path between the first resistor and the temperature detecting element of the individual detecting unit corresponding to the bipolar transistor. A voltage reflecting the lowest voltage among the voltages applied to the third conductive paths in the plurality of individual detecting units is applied to the second conductive path.