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. 01, 2022
Filed:
Nov. 09, 2016
Seiko Epson Corporation, Tokyo, JP;
Denso Corporation, Kariya, JP;
Akio Tsutsumi, Chino, JP;
Naoki Yoshida, Kariya, JP;
Abstract
A diagnostic circuit is provided that diagnoses a connection state of a capacitor connected to an output terminal of a regulator that outputs a first voltage, the diagnostic circuit including: a switching circuit that performs, during a first period, a switching control process of switching an output voltage of the regulator to a second voltage that is higher than the first voltage; a detecting circuit that detects a variation in an output current of the regulator caused by the switching control process; and a determining circuit that determines the connection state of the capacitor, based on a detection result of the detecting circuit.