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:
May. 10, 2016
Filed:
Oct. 31, 2014
Hong Fu Jin Precision Industry (Wuhan) Co., Ltd., Wuhan, CN;
Hon Hai Precision Industry Co., Ltd., New Taipei, TW;
Yong-Chang Fan, Wuhan, CN;
HONG FU JIN PRECISION INDUSTRY (WuHan) CO., LTD., Wuhan, CN;
HON HAI PRECISION INDUSTRY CO., LTD., New Taipei, TW;
Abstract
A fan rotational speed adjusting system includes a power supply unit, a fan, a current detecting circuit and a temperature detecting circuit. The current detecting circuit detects a first DC voltage from the power supply unit, compares the first DC voltage with a first reference voltage, and outputs a first adjusting voltage. The temperature detecting circuit detects a temperature change of the power supply unit, and outputs a second adjusting voltage. The temperature detecting circuit receives the first adjusting voltage, compares the first adjusting voltage and the second adjusting voltage with a second reference voltage, and outputs a third DC voltage to the fan. The fan rotates in the corresponding rotational speed, and dissipates heat for the power supply unit.