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:
Jan. 26, 2021
Filed:
Jun. 25, 2018
Rolls-royce North American Technologies Inc., Indianapolis, IN (US);
Andrew Bollman, Plainfield, IN (US);
Sean Guitar, Indianapolis, IN (US);
Rolls-Royce North American Technologies, Inc., Indianapolis, IN (US);
Abstract
Electrical voltage detection circuit and methods for determining the presence or absence of voltage in electrical equipment. An isolated power supply provides power to one or more voltage detection devices configured to detect voltage on one or more busses of electrical equipment. A switch is configured to provide supply voltage from the isolated power supply to the one or more busses of electrical equipment when the switch is closed. The voltage detection devices may determine if the one or more busses of electrical equipment are de-energized by detecting the voltage on the busses when the switch is open. The integrity of the electrical equipment may be verified by detecting, with the voltage detection devices, the voltage on the busses when the switch is closed, where the expected voltage readings are based on voltages being provided to one or more busses by the isolated power supply.