CN201696326U - Speed regulation tool of PWM fans - Google Patents
Speed regulation tool of PWM fans Download PDFInfo
- Publication number
- CN201696326U CN201696326U CN2010202374162U CN201020237416U CN201696326U CN 201696326 U CN201696326 U CN 201696326U CN 2010202374162 U CN2010202374162 U CN 2010202374162U CN 201020237416 U CN201020237416 U CN 201020237416U CN 201696326 U CN201696326 U CN 201696326U
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- cpld chip
- fans
- chip
- cpld
- pwm
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- Expired - Fee Related
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- 238000000034 method Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
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Abstract
The utility model provides a speed regulation tool of PWM fans, and belongs to the field of computers. The speed regulation tool structurally comprises fans, a CPLD chip, a singlechip, an LED display and signal keystrokes, wherein the fans are connected with the CPLD chip; the singlechip is arranged between the CPLD chip and the LED display; the signals transmitted by the fans can be transmitted to the singlechip through the CPLD chip and then be input to the LED display; the signal keystrokes are arranged on the CPLD chip; and the PWM signals are fed back to the fans through the CPLD chip. Compared with the prior art, the speed regulation tool with improved product performance and convenient management adopts the design method that the CPLD chip is combined with the singlechip; a plurality of fans can be controlled by the CPLD chip, the duty cycle steps in the PWM fans by one percent, and CPLD calculates the pulses input by the rotational speeds of the fans which are processed through the singlechip to transmit to the LED for display.
Description
1, technical field
The utility model relates to field of computer technology, specifically a kind of PWM fan speed-regulating instrument.
2, background technique
The PMW technology is to modulate by the width to a series of pulses, obtain required waveform (containing shape and amplitude) equivalently, and the prior PWM technology does not combine CPLD chip and single-chip microcomputer, the CPLD chip can not show on LED the tacho-pulse of input, the PMW signal that dutycycle produces can not be exported to each fan, so certain defective is arranged in the management of product and performance boost.
3, summary of the invention
The utility model is at above-mentioned the deficiencies in the prior art, and a kind of PWM fan speed-regulating instrument is provided.
A kind of PWM fan speed-regulating instrument of the present utility model is realized in the following manner, structure comprises fan, CPLD chip, single-chip microcomputer, light-emitting diode display and signal button, wherein fan is connected with the CPLD chip and is set together, single-chip microcomputer is arranged between CPLD chip and the light-emitting diode display, the signal that fan sends sends to single-chip microcomputer by the CPLD chip and is input on the light-emitting diode display again, the signal button is arranged on the CPLD chip, and gives fan by the CPLD chip with the PMW signal feed back.
The utility model is compared with prior art, has following outstanding beneficial effect:
Enhance product performance, be convenient to management, the design method that adopts CPLD chip and single-chip microcomputer to combine, utilize a plurality of fans of COLD chip controls, and dutycycle is pressed 1% stepping PWM, CPLD calculates the rotation speed of the fan input pulse, after the processing by single-chip microcomputer, send LED to show.
4, description of drawings
Fig. 1 is a kind of perspective view of PWM fan speed-regulating instrument.
Description of reference numerals: 1, fan, 2, the CPLD chip, 3, single-chip microcomputer, 4, light-emitting diode display, 5, the signal button.
5, embodiment
Explain below with reference to Figure of description a kind of PWM fan speed-regulating instrument of the present utility model being done.
As shown in Figure 1, a kind of PWM fan speed-regulating tools structure of the present utility model comprises fan 1, CPLD chip 2, single-chip microcomputer 3, light-emitting diode display 4 and signal button 5, wherein fan 1 is connected with CPLD chip 2 and is set together, single-chip microcomputer 3 is arranged between CPLD chip 2 and the light-emitting diode display 4, the signal that fan 1 sends sends to single-chip microcomputer 3 by CPLD chip 2 and is input on the light-emitting diode display 4 again, signal button 5 is arranged on the CPLD chip 2, and gives fan 1 by CPLD chip 2 with the PMW signal feed back.
16 transportation work styles are fanned the connection of 1 tach signal and are input on the CPLD chip 2, the tacho-pulse of 2 pairs of inputs of CPLD chip is counted, issuing single-chip microcomputer 3 then handles, show by light-emitting diode display 4 again, CPLD chip 2 is fanned 1 dutycycle according to each transportation work style that signal button 5 is provided with, and produces pwm signal and exports to each fan 1.
Except that the described technical characteristics of specification, be the known technology of those skilled in the art.
Claims (1)
1. PWM fan speed-regulating instrument, it is characterized in that structure comprises fan, CPLD chip, single-chip microcomputer, light-emitting diode display and signal button, wherein fan is connected with the CPLD chip and is set together, single-chip microcomputer is arranged between CPLD chip and the light-emitting diode display, the signal that fan sends sends to single-chip microcomputer by the CPLD chip and is input on the light-emitting diode display again, the signal button is arranged on the CPLD chip, and gives fan by the CPLD chip with the PMW signal feed back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202374162U CN201696326U (en) | 2010-06-25 | 2010-06-25 | Speed regulation tool of PWM fans |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202374162U CN201696326U (en) | 2010-06-25 | 2010-06-25 | Speed regulation tool of PWM fans |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201696326U true CN201696326U (en) | 2011-01-05 |
Family
ID=43397568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202374162U Expired - Fee Related CN201696326U (en) | 2010-06-25 | 2010-06-25 | Speed regulation tool of PWM fans |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201696326U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367801A (en) * | 2011-06-27 | 2012-03-07 | 苏州中研纺织科技有限公司 | Automatic fan |
| CN102913428A (en) * | 2011-08-01 | 2013-02-06 | 鸿富锦精密工业（深圳）有限公司 | Fan module testing system |
| CN103148885A (en) * | 2013-03-18 | 2013-06-12 | 核工业理化工程研究院 | Portable tester |
| CN104154020A (en) * | 2014-08-13 | 2014-11-19 | 浪潮电子信息产业股份有限公司 | Design method for intelligently controlling booting noise of server |
| CN107588030A (en) * | 2017-09-14 | 2018-01-16 | 郑州云海信息技术有限公司 | A kind of radiator fan speed regulating method, apparatus and system |
| CN108334348A (en) * | 2017-08-25 | 2018-07-27 | 郑州云海信息技术有限公司 | A kind of method for visualizing of detection service device system fan rate |
| CN108869370A (en) * | 2017-05-12 | 2018-11-23 | 保锐科技股份有限公司 | Fan control device and its operating method |
-
2010
- 2010-06-25 CN CN2010202374162U patent/CN201696326U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367801A (en) * | 2011-06-27 | 2012-03-07 | 苏州中研纺织科技有限公司 | Automatic fan |
| CN102913428A (en) * | 2011-08-01 | 2013-02-06 | 鸿富锦精密工业（深圳）有限公司 | Fan module testing system |
| CN103148885A (en) * | 2013-03-18 | 2013-06-12 | 核工业理化工程研究院 | Portable tester |
| CN104154020A (en) * | 2014-08-13 | 2014-11-19 | 浪潮电子信息产业股份有限公司 | Design method for intelligently controlling booting noise of server |
| CN104154020B (en) * | 2014-08-13 | 2016-08-31 | 浪潮电子信息产业股份有限公司 | A kind of method for designing of intelligent control server start-up noises |
| CN108869370A (en) * | 2017-05-12 | 2018-11-23 | 保锐科技股份有限公司 | Fan control device and its operating method |
| CN108334348A (en) * | 2017-08-25 | 2018-07-27 | 郑州云海信息技术有限公司 | A kind of method for visualizing of detection service device system fan rate |
| CN107588030A (en) * | 2017-09-14 | 2018-01-16 | 郑州云海信息技术有限公司 | A kind of radiator fan speed regulating method, apparatus and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20130625 |