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:
Oct. 13, 2015
Filed:
Mar. 31, 2014
Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd., Shenzhen, CN;
Hon Hai Precision Industry Co., Ltd., New Taipei, TW;
HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., Shenzhen, CN;
HON HAI PRECISION INDUSTRY CO., LTD., New Taipei, TW;
Abstract
A protection circuit includes a protection module and a fan electrically connected to the protection module. The protection module includes a control chip, an inverter, and an electronic switch. An input terminal of the inverter is electrically connected to a voltage output terminal and the fan, and further electrically connected to a clear pin of the control chip. An output terminal of the inverter is electrically connected to a preparation pin of the control chip. A first terminal of the electronic switch is electrically connected to an output pin of the control chip. The first and second terminals of the electronic switch are electrically connected to a power source terminal. A third terminal of the electronic switch is electrically connected to the voltage output terminal. When the fan short-circuits, the power source terminal stops supplying power to the fan through the voltage output terminal.