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. 30, 2012
Filed:
Jul. 14, 2010
Hai-qing Zhou, Shenzhen, CN;
Yun-shan Xiao, Shenzhen, CN;
Hai-Qing Zhou, Shenzhen, CN;
Yun-Shan Xiao, Shenzhen, CN;
Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Shenzhen, Guangdong Province, CN;
Hon Hai Precision Industry Co., Ltd., Tu-Cheng, New Taipei, TW;
Abstract
A temperature protection circuit includes a detection circuit, a comparison circuit, a switching circuit, and a control circuit. When the temperature of an electronic device is below a preset temperature, a detecting voltage signal exceeds a reference temperature signal, and the comparison circuit outputs a control signal to open the switching circuit. The control circuit directs a power circuit to provide voltage to an operating circuit. When a temperature of the electronic device exceeds the preset temperature, the detecting voltage signal is below the reference temperature signal, and the comparison circuit outputs a control signal to close the switching circuit. The control circuit directs the power circuit to stop supplying voltages to the operating circuit.