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:
Jun. 02, 2020
Filed:
Mar. 07, 2018
Ngk Spark Plug Co., Ltd., Nagoya-shi, Aichi, JP;
Yuzo Higuchi, Komaki, JP;
NGK SPARK PLUG CO., LTD., Aichi, JP;
Abstract
A voltage supply apparatus for supplying a voltage to a detection circuit, including a power supply filter () and a control section () which supply a sensor drive voltage Vbg to a sensor device () having a ratiometric characteristic. The power supply filter () has supply paths PLand PL. The control section () determines whether or not a switching determination time has elapsed after startup. In the case where the switching determination time has not yet elapsed, the power supply filter () supplies the sensor drive voltage Vbg through supply path PL. In the case where the switching determination time has elapsed, the power supply filter () supplies the sensor drive voltage Vbg through supply path PL. The response of the sensor drive voltage Vbg to a variation in power supply voltage Vcc is slower when supplied through the supply path PLthan through the supply path PL