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. 13, 2014
Filed:
Feb. 29, 2012
John R. Agness, Laguna Hills, CA (US);
William K. Laird, Corona, CA (US);
Henry S. Ung, Tustin, CA (US);
John R. Agness, Laguna Hills, CA (US);
William K. Laird, Corona, CA (US);
Henry S. Ung, Tustin, CA (US);
Western Digital Technologies, Inc., Irvine, CA (US);
Abstract
A data storage system is disclosed including a data storage device having a controller coupled to non-volatile semiconductor memory and a power device having a common power rail and first, second, and third spindle phase switching elements, the common power rail receiving an input voltage and providing power to the data storage device and the power device. The data storage system further includes an inductor coupled between outputs of the first and second spindle phase switching elements, and a charge storage element coupled between the second spindle phase switching element output and ground. The power device further includes control circuitry that controls the first and second spindle phase switching elements to generate boost output voltage for charging the charge storage element during a boost mode, the boost output voltage enabling the controller to perform a data operation in an event of an interruption of power to the data storage system.