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:
Nov. 07, 2017
Filed:
Nov. 19, 2013
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, Ibaraki, JP;
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, JP;
Abstract
A compound sensor capable of suppressing a fault which has occurred in a detection element from affecting other detection units in which no fault has occurred is provided. The compound sensor includes: a plurality of detection units including C/V conversion circuitsand, amplifier circuitsand, ADCsand, diagnosis voltage outputting DACsand, carrier signal generating DACsandand substrate voltage generating DACsandwhich are signal detection circuits provided for each of a plurality of detection elements; a power source voltage input unitand a GND voltage input unitshared among each of the plurality of detection units; and overcurrent switch circuitsandwhich are fault detection circuits for detecting a fault of each detection element and stopping power supply to the detection unit in which the fault has occurred.