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. 18, 2014
Filed:
Sep. 13, 2010
Zhihong Zhang, ShangHai, CN;
Xujiang Huang, ShangHai, CN;
Zhihong Zhang, ShangHai, CN;
XuJiang Huang, ShangHai, CN;
Shanghai SIM-BCD Semiconductor Manufacturing Limited, Shanghai, CN;
Abstract
The present invention relates to a system and method controlling motor rotation speed and provides a cooling system and method configured to control a temperature associated with an integrated circuit. The cooling system includes a brushless motor, a temperature monitoring input, a clock input, and a motor controller. The motor controller is configured to control the rotational speed of the motor using at least a speed control method by comparing the environmental temperature signal to a predetermined threshold: if the environmental temperature signal is less than the predetermined threshold Tor higher than T, controlling the rotational speed of the motor uses the speed control method and only one of the environmental temperature signal and the clock signal; and if the environmental temperature signal is greater than the predetermined threshold Tand less than T, controlling the rotational speed of the motor uses the speed control method and both of the environmental temperature signal and the clock signal.