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. 25, 1991
Filed:
Oct. 04, 1989
Roger D Thornton, Union Township, Auglaize County, OH (US);
Westinghouse Electric Corp., Pittsburgh, PA (US);
Abstract
A redundant power bus arrangement for electronic circuits controls the application of voltage from a power source to an active circuit card and a standby circuit card. Current limited switches are used to connect the power source to the active or standby circuits. A switch control circuit controls the conductive state of the current limited switches in response to a control signal generated by at least one of the controlled circuits. The maximum current permitted by each of the current limited switches is less than the maximum output current rating of the power source, thereby preventing a short on a power bus within one of the controlled circuits from affecting the voltage available for the other controlled circuit.