A fan control board based on dsp co-processing

A fan control and co-processing technology, applied in the computer field, can solve the problem of high decibel noise of fans, and achieve the effect of reducing the uncontrolled high noise of fans

Active Publication Date: 2020-09-04
SUZHOU METABRAIN INTELLIGENT TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The lowest speed is obviously not a good solution to the heat dissipation problem during the boot process, but the highest speed is often accompanied by high-decibel noise from the fan

Method used

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  • A fan control board based on dsp co-processing
  • A fan control board based on dsp co-processing

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Embodiment Construction

[0024] Embodiments of the present disclosure are described below. It is to be understood, however, that the disclosed embodiments are merely examples and that other embodiments may take various alternative forms. The figures are not necessarily to scale; some features may be exaggerated or minimized to show details of particular components. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a representative basis for teaching one skilled in the art to variously employ the present invention. As will be understood by persons of ordinary skill in the art, various features shown and described with reference to any one figure can be combined with features shown in one or more other figures to create embodiments not explicitly shown or described . Combinations of features shown provide representative embodiments for typical applications. However, various combinations and modifications of the features consist...

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Abstract

The invention provides a fan control board card based on DSP co-processing. The fan control board card comprises fan control chips, a DSP and bus driving chips, wherein the fan control chips are in communication with a mainboard BMC and output pulse width modulation signals used for controlling a fan and receive rotating speed signals fed back by the electric fan, the DSP is in communication witha mainboard FPGA and outputs pulse width modulation signals used for controlling the fan, the bus driving chips receive the pulse width modulation signals from the fan control chips and the DSP so asto control the fan, and the DSP is used for switching control signals output to the bus driving chips according to the mainboard power-on and power-off states and BMC initialization state signals obtained from the mainboard FPGA, so that an input source of the pulse width modulation signals of the bus driving chips are switched between the fan control chips and the DSP. According to the fan control board card based on DSP co-processing, switching of the two fan control modes can be carried out in different time periods of a machine, so that uninterrupted control on the fan is realized.

Description

technical field [0001] The present invention generally relates to the computer field, and more specifically, relates to a fan control board based on DSP (Digital Signal Processor, digital signal processor) co-processing. Background technique [0002] The server system will generate a lot of heat during operation, causing the temperature inside the machine to rise, which mainly depends on the flow of air driven by the fan to reduce the temperature inside the machine. At present, the fan is usually directly controlled by the BMC (Baseboard Management Controller, Baseboard Management Controller) on the motherboard. The BMC collects data from temperature sensors at different locations on the motherboard to obtain temperature information, and adjusts the fan speed to keep the internal temperature of the machine within a safe range. Inside. With the increase of server system module size, the division of different heat dissipation areas, and the increase of heat, more fan modules ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D27/00G06F1/20
CPCF04D27/00F04D27/004F04D27/008G06F1/20
Inventor 王树明赵现普薛广营
Owner SUZHOU METABRAIN INTELLIGENT TECH CO LTD
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