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:
May. 08, 2018
Filed:
Apr. 03, 2015
Calsonic Kansei Corporation, Saitama-shi, Saitama, JP;
Yasuhiro Kobayashi, Saitama, JP;
CALSONIC KANSEI CORPORATION, Saitama-shi, Saitama, JP;
Abstract
This vehicle ground fault detection apparatus maintains a high level of insulation in an aluminum electrolytic capacitor to improve long-term reliability. This vehicle ground fault detection apparatus () detects a ground fault of a DC power supply by connecting the positive terminal or the negative terminal of a high-voltage power supply to one terminal of a coupling capacitor () provided with aluminum electrolytic capacitors (C, C, C), applying a square-wave pulse signal to a measurement point at the other terminal of the coupling capacitor, and detecting a voltage signal generated at the measurement point. The vehicle ground fault detection apparatus () includes a charger and discharger (CPU) that charges and discharges the coupling capacitor when a ground fault of the DC power supply is not being detected.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile