Fan module and control device thereof
AssigneeDelta Electronics, Inc.
InventorsChien Chen, Chun-Lung Chiu, Wen-Chuan Ma, Wen-Shi Huang
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Abstract
Fan module and control device thereof. The fan module comprises a plurality of fans and the control device. The control device comprises a temperature sensing circuit, and a driving circuit. The temperature sensing circuit detects an ambient temperature of the fans and generates a sensing signal accordingly. The driving circuit is coupled between the fans and temperature sensing circuit, and comprises a fully powered operating mode and a power-saving operating mode, wherein the driving circuit selects different operating modes in accordance with the sensing signal, and generates a fan driving signal controlling the speed of the fans.
Claims19
A fan module comprising:
- a plurality of fans;
- and
- a control device comprising:
- a temperature sensing circuit for detecting an ambient temperature of the fans and generating a sensing signal;
- and
- a driving circuit coupled between the fans and the temperature sensing circuit driving the fans in a fully powered operating mode or a power-saving operating mode, wherein the driving circuit can select one of the operating modes in accordance with the sensing signal and then generate a driving signal to control the speed of the fans.
A control device coupled to a fan, comprising:
- a temperature sensing circuit for detecting an ambient temperature of the fan and generating a sensing signal;
- a driving circuit coupled between the fan and the temperature sensing circuit, for driving the fan in a fully powered operating mode or a power-saving operating mode, wherein the driving circuit can select one of the operating modes in accordance with the sensing signal and then generate a driving signal to control the speed of the fan;
- and
- a switch coupled to the driving circuit for controlling the driving circuit to operate in the fully powered or power-saving operating modes.
A control device coupled to a fan, comprising:
- a temperature sensing circuit for detecting an ambient temperature of the fan and generating a sensing signal;
- a driving circuit coupled between the fan and the temperature sensing circuit, for driving the fan in a fully powered operating mode or a power-saving operating mode, wherein the driving circuit can select one of the operating modes in accordance with the sensing signal and then generate a driving signal to control the speed of the fan;
- and
- an address setting device coupled between the driving circuit and the fan, setting addresses for the fan and enabling the driving circuit to retrieve the operating condition of each of the fan therethrough.
Dependencies are inferred from the claim text.