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:
Mar. 21, 2000
Filed:
Jul. 16, 1999
Fujitsu Limited, Kawasaki, JP;
Abstract
A method of adjusting a motor driving device which performs current-feedback PWM drive, the motor driving device, and an information storage device are provided. According to the present invention, a drive circuit is turned off by a control circuit, and a target current indication signal is gradually increased. The content of a register which stores the result of comparison between the output signal of a comparator circuit and the target current indication signal is then detected. If the content of the register is '1', i.e., if the output signal of the current sense circuit is smaller than a target current indication signal, the target current indication signal immediately before the output of the comparator circuit reaches '1' is stored as the reference value of the target current indication signal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile