logo

For the Inventor, By the Inventor

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.:

US 9093106 B1

PDFFull Text
Date of Patent:
Jul. 28, 2015

Filed:

Apr. 05, 2013

Motor drive device, magnetic disk storage device, and electronic appliance

Applicant:

Rohm Co., Ltd., Kyoto-shi, Kyoto, JP;

Inventor:

Yoshito Otaguro, Kyoto, JP;

Assignee:

ROHM CO., LTD., , JP;

Attorney:

Cantor Colburn LLP

Primary Examiner:

Wayne Young

Assistant Examiner:

James L Habermehl

Int. Cl.
CPC ...
G11B 19/04 (2006.01); G11B 19/28 (2006.01); H02P 6/00 (2006.01); H02P 6/14 (2006.01); H02P 25/02 (2006.01); G11B 19/20 (2006.01);
U.S. Cl.
CPC ...
G11B 19/047 (2013.01); G11B 19/28 (2013.01); H02P 6/001 (2013.01); H02P 6/14 (2013.01); H02P 25/028 (2013.01); G11B 19/2081 (2013.01);
Abstract

A motor drive device has a motor driver adapted to receive a first power supply voltage to drive a motor; an internal regulator adapted to generate from an input voltage an internal power supply voltage; and a power supply switcher adapted to receive both the first power supply voltage and a second power supply voltage lower than the first power supply voltage to output, as the input voltage, the second power supply voltage when the second power supply voltage is normal and to output, as the input voltage, the first power supply voltage when the second power supply voltage is abnormal.

Find Patent Forward Citations

Otaguro, Yoshito. (2015). Motor drive device, magnetic disk storage device, and electronic appliance (U.S. Patent No. 9093106). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9093106

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…