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Fan control device and method of operation thereof

A technology of fan control and operation method, which is applied to pump devices, pump control, components of pumping devices for elastic fluids, etc., and can solve problems such as low heat, noise of cooling fan operation, waste of power supply of cooling fans, etc.

Active Publication Date: 2019-12-17
ENERMAX TECHNOLOGY CORPORATION
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the computer is in light load or standby state, the heat generated by the central processing unit (CPU) is not high, so it is not necessary to run the cooling fan at the maximum speed to dissipate heat; thus it will cause a waste of power for the cooling fan
Furthermore, when the cooling fan is running continuously, the cooling fan will continue to generate running noise
[0004] However, none of the existing fan control devices is designed to control the cooling fan when the computer is under light load or in a standby state, so as to reduce the waste of cooling fan power and reduce the noise during operation.

Method used

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  • Fan control device and method of operation thereof
  • Fan control device and method of operation thereof
  • Fan control device and method of operation thereof

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Embodiment Construction

[0067] Hereby, the technical content and detailed description of the present invention are described as follows in conjunction with the drawings:

[0068] see figure 1 It is a schematic circuit block diagram of the fan control device of the present invention. The fan control device 100 includes a power port 20 , a control unit 24 and a drive unit 26 for controlling the fan group 28 . The power port 20 is connected to an external power supply (not shown), and receives the main power Pm and the auxiliary power Ps of the external power supply, and uses the main power Pm and the auxiliary power Ps as the power required for the operation of the fan control device 100 . The control unit 24 is connected between the power port 20 and the processor 220 on the motherboard 200 , receives the main power Pm and the auxiliary power Ps through the power port 20 , and receives the pulse width modulation signal PWM output by the processor 220 . The fan group 28 includes a plurality of fans (...

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Abstract

A fan control device which controls operation of a fan comprises a power supply port, a control unit, a driving unit, a plurality of fans and a trigger switch. The control unit receives a pulse widthmodulation signal output by a processor and judges whether the duty ratio of the pulse width modulation signal is greater than at least one threshold value set by the control unit or not. When the duty ratio of the pulse width modulation signal is greater than the at least one threshold value, the control unit controls the fans to operate through the driving unit.

Description

technical field [0001] The invention relates to a fan control device and its operating method, in particular to a fan control device and its operating method for controlling the operation of the fan according to a pulse width modulation signal output by a processor on a main board. Background technique [0002] With the continuous advancement of technology, the size of integrated circuits (Integrated Circuit; IC) becomes smaller and the instruction cycle thereof increases. Therefore, when the command cycle of the IC component is faster, the heating of the IC component will be more serious. [0003] In the computer case, the main source of heat comes from the central processing unit (CPU). Therefore, most computer cases are equipped with cooling fans to reduce the temperature in the case. In this design, the cooling fan will start to run as soon as the computer is turned on. And no matter whether the computer is in the working or standby state, the cooling fan will run at ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D27/00F04D25/16F04D29/66G06F1/20
CPCF04D25/166F04D27/00F04D27/004F04D29/661G06F1/20
Inventor 曾之骏朱金成
Owner ENERMAX TECHNOLOGY CORPORATION
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