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. 10, 2012
Filed:
Sep. 04, 2008
Brian J. Cagno, Tucson, AZ (US);
John C. Elliott, Tucson, AZ (US);
Robert A. Kubo, Tucson, AZ (US);
Gregg S. Lucas, Tucson, AZ (US);
Brian J. Cagno, Tucson, AZ (US);
John C. Elliott, Tucson, AZ (US);
Robert A. Kubo, Tucson, AZ (US);
Gregg S. Lucas, Tucson, AZ (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A mechanism for in situ verification of capacitive power support is provided. A memory system uses a super capacitor to support a voltage rail when input power is lost or interrupted. The voltage discharge curve is a function of load and capacitance of the component. By stepping the regulated power supply to a lower output within the voltage range and recording voltage and current draw at the super capacitor as it discharges to the new regulator output voltage, the super capacitor holdup capability can be tested.