Invention Grant
- Patent Title: Circuit for controlling rotation speed of fan of electronic device
- Patent Title (中): 控制电子设备风扇转速的电路
-
Application No.: US12613468Application Date: 2009-11-05
-
Publication No.: US08248015B2Publication Date: 2012-08-21
- Inventor: Yong-Zhao Huang
- Applicant: Yong-Zhao Huang
- Applicant Address: CN Shenzhen, Guangdong Province TW Tu-Cheng, New Taipei
- Assignee: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd.,Hon Hai Precision Industry Co., Ltd.
- Current Assignee: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd.,Hon Hai Precision Industry Co., Ltd.
- Current Assignee Address: CN Shenzhen, Guangdong Province TW Tu-Cheng, New Taipei
- Agency: Altis Law Group, Inc.
- Priority: CN200910303588 20090624
- Main IPC: G05B5/00
- IPC: G05B5/00
Abstract:
A circuit for controlling a rotation speed of a fan of an electronic device according to a temperature of the electronic device. The circuit senses the temperature of the electronic device, and outputs a voltage changing with the sensed temperature. The rotation speed of the fan changes with the voltage. The circuit slows the rotation speed of the fan down when the sensed temperature of the electronic device is decreased.
Public/Granted literature
- US20100327792A1 CIRCUIT FOR CONTROLLING ROTATION SPEED OF FAN OF ELECTRONIC DEVICE Public/Granted day:2010-12-30
Information query
