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Fan speed control method and circuit based on volume

A fan speed and fan technology, applied in the electronic field, can solve the problems of insignificant heat dissipation effect and high noise, and achieve the effects of low cost, improved utilization rate, and accelerated heat dissipation speed.

Active Publication Date: 2020-12-08
FORYOU GENERAL ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, using a fan for heat dissipation has obvious defects: when the fan speed is fast and the air volume is large, the noise is large; when the fan speed is slow and the air volume is small, the heat dissipation effect is not obvious

Method used

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  • Fan speed control method and circuit based on volume
  • Fan speed control method and circuit based on volume
  • Fan speed control method and circuit based on volume

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Experimental program
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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

[0027] see figure 1 , is a flow chart of the steps of an embodiment of the volume-based fan speed control method provided by the present invention.

[0028] The volume-based fan speed control method provided in this embodiment mainly includes the following steps S101-S105:

[0029] Step S101: receiving the user's volume adjustment instruction to the player, and obtaining the current target volume value;

[0030] Step S102: Detect whether the player outputs sound; if so, execute step S103; if not, execute step S104;

[0031] Step S103: Outputting a fan speed control signal corresponding to the target volume value;

[0032] Step S104: Outputting a fan speed control signal corresponding to the lowest speed;

[0033] Step S105: Adjust the fan speed according to the fan speed c...

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PUM

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Abstract

The invention discloses a fan rotational speed control method based on the volume size. The method comprises the steps of receiving a volume adjustment instrument of a user to a player, and acquiring a current target volume value; detecting whether the player outputs sounds or not; if yes, outputting a fan rotational speed control signal corresponding to the target volume value; if not, outputting a fan rotational speed control signal corresponding to a lowest rotational speed; and adjusting the fan rotational speed according to the fan rotational speed control signal. The invention further provides a fan rotational speed control circuit based on the volume size. According to implementation of the technical scheme, intelligent control over the fan rotational speed is realized by identifying the volume size; the utilization rate of a fan is increased; the system structure is simple and easy to implement. The practicality is high. The cost is low. Energy is effectively saved.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a fan speed control method and circuit based on volume. Background technique [0002] With the rapid development of automotive electronics technology, the car audio system is also constantly upgraded to meet consumers' higher requirements for audio experience. The car power amplifier and sound source processing circuit is an indispensable functional module in the car entertainment system, and its function is to select and process the audio input signal and amplify the power. The current car audio equipment generally has the characteristics of small size, multiple functions, and high output power. Due to the large power consumption, heat dissipation problems are inevitable. Due to the small size, it is impossible to use an oversized radiator. The more common way is to use The fan dissipates heat. [0003] However, using a fan for heat dissipation has obvious defects: when th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D27/00
CPCF04D27/004
Inventor 李远辉
Owner FORYOU GENERAL ELECTRONICS
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