Fan control apparatus

A fan control and control circuit technology, applied in the control system, temperature control using electric mode, DC motor speed/torque control, etc., can solve the problem of damage to the cooling device
CN1550946AInactive Publication Date: 2004-12-01GIGA BYTE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
GIGA BYTE TECH CO LTD
Publication Date
2004-12-01
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invented device ensures power supply for heat radiating fan normally. A divided circuit is connected between input end of power source and circuit of driving motor so that the divided circuit is connected to control circuit in parallel. When in normal operation of the control circuit, both of the control circuit and the divided circuit together is as power supply lines for the heat radiating fan. When in abnormal operation caused by disabled control circuit, the divided circuit becomes as power supply line solely. Thus, power supply for heat radiating fan is ensured.
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Description

technical field

[0001] The invention relates to a fan control device, in particular to a fan control device capable of ensuring normal power supply of a cooling fan. Background technique

[0002] In the information society, the size of the chip or processor used in the computer system has become smaller and smaller, but its computing speed has been relatively doubled, so the accompanying working temperature has also increased significantly. In order to avoid affecting the central processing unit due to excessive working temperature For the computing efficiency and normal operation of the cooling device such as chips or chips, it is necessary to use a heat sink or cooling fan on the central processing unit or chip to eliminate its high temperature and ensure the safety of the cooling device.

[0003] And general cooling fans all need a power supply system and power supply line to maintain the power supply of its normal operation, such as Taiwan Patent Publication No. 460093, ...

Claims

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