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. 07, 2009
Filed:
Aug. 09, 2006
Chien-fa Liang, Chung-Ho, TW;
Chien-Fa Liang, Chung-Ho, TW;
Super Micro Computer, Inc., San Jose, CA (US);
Abstract
An anomaly control device for a dual fan of computer is composed of a first and second coil, a first and second driving IC, a controller, and a voltage level comparing circuit. The voltage level comparing circuit will perform a voltage dividing to a first and second reference potential signals input from the first and second driving ICs to obtain a third reference potential signal which is compared with a reference pulse wave signal output from an output end of the first driving IC, to determine to output either a high level pulse voltage signal or a low voltage direct-current signal to the controller for processing. The controller will output a control-gate-on or a control-gate-off signal to the first and second driving ICs for enabling the first and second coils to continue to operate or to stop operating.