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:
Jul. 28, 2015
Filed:
Mar. 19, 2014
Applicants:
Inventec (Pudong) Technology Corporation, Shanghai, CN;
Inventec Corporation, Taipei, TW;
Inventors:
Assignees:
INVENTEC (PUDONG) TECHNOLOGY CORPORATION, Shanghai, CN;
INVENTEC CORPORATION, Taipei, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 7/00 (2006.01); F04D 27/00 (2006.01); H03K 3/36 (2006.01); H02P 6/08 (2006.01);
U.S. Cl.
CPC ...
F04D 27/004 (2013.01); H02P 6/08 (2013.01); H03K 3/36 (2013.01);
Abstract
A controlling circuit for outputting a square wave circuit to control a fan rotating speed is disclosed, where an output unit continuously outputs the square wave signal and the output unit is electrically connected to a time-delaying adjustment circuit, so that a duty-ratio formed not equal to 50% is outputted to control the fan rotating speed, whereby a particular duty-ratio is provided to control the fan rotating speed after a control chip for fan rotating speed is pulled out.