CN101030162A - CPU fan stalling alarming circuit - Google Patents
CPU fan stalling alarming circuit Download PDFInfo
- Publication number
- CN101030162A CN101030162A CN 200610034118 CN200610034118A CN101030162A CN 101030162 A CN101030162 A CN 101030162A CN 200610034118 CN200610034118 CN 200610034118 CN 200610034118 A CN200610034118 A CN 200610034118A CN 101030162 A CN101030162 A CN 101030162A
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- triode
- cpu fan
- circuit
- cpu
- power supply
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Abstract
A stop-alarming circuit of CPU fan is prepared as connecting CPU fan to monitor circuit being connected with alarming unit, utilizing said monitor circuit to monitor operation state of CPU fan and starting up alarming unit when operation of CPU fan is stopped.
Description
[technical field]
The present invention relates to a kind of warning circuit, relate in particular to a kind of cpu fan stalling alarming circuit.
[background technology]
Central processing unit (CPU) is the of paramount importance ingredient of computer system, lifting along with CPU work dominant frequency, its power consumption and thermal value are also in continuous lifting, and the temperature of CPU directly has influence on the stable of computer operation, and this just needs cpu fan when CPU works the heat of its generation in time to be spread.If cpu fan stops operating when computer operation, for example can't be rotated by the cpu fan that foreign matter blocks, reason such as power supply loose contact and fan damage causes, the heat that CPU is produced can not in time distribute, cause cpu temperature too high, computing machine is frequently crashed, even cause CPU to burn.
In order to make the computing machine steady operation, guarantee that the heat radiation of CPU is normal, just need effectively monitor, so that in time pinpoint the problems and processing in time the duty of fan.
[summary of the invention]
In view of above content, be necessary to provide a kind of cpu fan stalling alarming circuit, with monitoring cpu fan operate as normal whether.
A kind of cpu fan stalling alarming circuit, it comprises cpu fan, monitoring circuit and warning device, described cpu fan is connected with described monitoring circuit, described monitoring circuit is connected with described warning device, the duty of the described cpu fan of described monitor circuit monitors starts warning device when cpu fan quits work.
After computing machine was started working, the monitoring circuit of described cpu fan stalling alarming circuit promptly began to monitor the duty of cpu fan, starts warning device and report to the police when cpu fan quits work.
[description of drawings]
Below in conjunction with accompanying drawing and better embodiment the present invention is described in further detail:
Fig. 1 is the circuit diagram of cpu fan stalling alarming circuit better embodiment of the present invention.
[embodiment]
See also Fig. 1, a kind of cpu fan stalling alarming circuit 10, it comprises cpu fan 12, monitoring circuit 14 and warning device 16, described cpu fan 12 comprises power pins VCC, rotor signal pins Tacho and grounding pin GND, described warning device 16 is a hummer, it comprises positive source V+ and power cathode V-, and described monitoring circuit 14 comprises some triode Q1～Q3, some resistance R 1～R5, two capacitor C 1 and C2, two diode D1 and D2 and 12V power supply.
The power pins VCC of described cpu fan 12 is connected with the 12V power supply of described monitoring circuit 14, the grounding pin GND ground connection of described cpu fan 12, the rotor signal pins Tacho of described cpu fan 12 is connected with the base stage of described triode Q1 by resistance R 1 in the described monitoring circuit 14, the collector of described triode Q1 is connected with described 12V power supply, the emitter of described triode Q1 is by described resistance R 2 ground connection, the emitter of described triode Q1 also is connected with the positive pole of described diode D1 by described capacitor C 1, the negative pole of described diode D2 is connected with the positive pole of described capacitor C 1 and described diode D1 respectively, the plus earth of described diode D2, the negative pole of described diode D1 is connected with the base stage of described triode Q2 by described resistance R 3, described capacitor C 2 one ends are connected with negative pole and the described resistance R 3 of described diode D1 respectively, other end ground connection, the grounded emitter of described triode Q2, the collector of described triode Q2 is connected with described 12V power supply by described resistance R 5, the collector of described triode Q2 also is connected with the base stage of described triode Q3, the grounded emitter of described triode Q3, the collector of described triode Q3 is connected with the power cathode V-of described warning device 16, and the positive source V+ of described warning device 16 is connected with described 12V power supply by described resistance R 4.
Described triode Q1～Q3 is NPN type triode, and the resistance value of described resistance R 2 is 1KOhm, and the appearance value of described capacitor C 1 is 1uF.
Described cpu fan 12 is started working behind the computer starting, its rotor signal pins Tacho exports the Transistor-Transistor Logic level signal of an alternate, by producing an impulse type bias current behind the triode Q1 of described monitoring circuit 14, thereby produce pulse voltage at described resistance R 2 two ends, described pulse voltage is successively through after described capacitor C 1 coupling, diode D1 detection and capacitor C 2 filtering, change level and smooth DC voltage into, described DC voltage makes described triode Q2 conducting, triode Q3 ends, and described warning device 16 cuts out; When cpu fan 12 stops operating, described rotor signal pins Tacho exports a constant voltage signal, make the triode Q1 of described monitoring circuit 14 produce a constant bias current, thereby produce a constant voltage at described resistance R 2 two ends, this moment, therefore described triode Q2 ended described triode Q3 conducting by no-voltage output behind described capacitor C 1 and the diode D1, described warning device 16 starts, and gives the alarm.
Claims (6)
1. cpu fan stalling alarming circuit, it comprises cpu fan, monitoring circuit and warning device, described cpu fan is connected with described monitoring circuit, described monitoring circuit is connected with described warning device, the duty of the described cpu fan of described monitor circuit monitors starts warning device when cpu fan quits work.
2. cpu fan stalling alarming circuit as claimed in claim 1 is characterized in that: described warning device is a hummer.
3. cpu fan stalling alarming circuit as claimed in claim 2, it is characterized in that: described cpu fan comprises power pins, described monitoring circuit comprises a power supply, described hummer comprises positive source, the power pins of described cpu fan is connected with described power supply, and the positive source of described hummer is connected with described power supply.
4. cpu fan stalling alarming circuit as claimed in claim 3, it is characterized in that: described cpu fan also comprises the rotor signal pins, described hummer also comprises power cathode, described monitoring circuit also comprises first triode, second triode, the 3rd triode, resistance, electric capacity and diode, the rotor signal pins of described cpu fan is connected with the base stage of described first triode, the collector of described first triode is connected with described power supply, the emitter of described first triode is by described resistance eutral grounding, the emitter of described first triode also is connected with the positive pole of described diode by described electric capacity, the negative pole of described diode is connected with the base stage of described second triode, the collector of described second triode is connected with described power supply, the collector of described second triode also is connected with the base stage of described the 3rd triode, the grounded emitter of described second triode, the collector of described the 3rd triode is connected with the power cathode of described hummer, the grounded emitter of described the 3rd triode.
5. cpu fan stalling alarming circuit as claimed in claim 4 is characterized in that: described cpu fan also comprises grounding pin, described grounding pin ground connection.
6. cpu fan stalling alarming circuit as claimed in claim 4 is characterized in that: described first, second is NPN type triode with the 3rd triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100341181A CN100530132C (en) | 2006-03-02 | 2006-03-02 | CPU fan stalling alarming circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100341181A CN100530132C (en) | 2006-03-02 | 2006-03-02 | CPU fan stalling alarming circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101030162A true CN101030162A (en) | 2007-09-05 |
| CN100530132C CN100530132C (en) | 2009-08-19 |
Family
ID=38715529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100341181A Expired - Fee Related CN100530132C (en) | 2006-03-02 | 2006-03-02 | CPU fan stalling alarming circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100530132C (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102749974A (en) * | 2011-04-22 | 2012-10-24 | 鸿富锦精密工业（深圳）有限公司 | Fan failure alarm circuit |
| CN103218282A (en) * | 2012-01-18 | 2013-07-24 | 精英电脑股份有限公司 | Power supply indicating device with fan monitoring function and control method of power supply indicating device |
| US9154222B2 (en) | 2012-07-31 | 2015-10-06 | Corning Optical Communications LLC | Cooling system control in distributed antenna systems |
| US9419712B2 (en) | 2010-10-13 | 2016-08-16 | Ccs Technology, Inc. | Power management for remote antenna units in distributed antenna systems |
| US9497706B2 (en) | 2013-02-20 | 2016-11-15 | Corning Optical Communications Wireless Ltd | Power management in distributed antenna systems (DASs), and related components, systems, and methods |
| US9509133B2 (en) | 2014-06-27 | 2016-11-29 | Corning Optical Communications Wireless Ltd | Protection of distributed antenna systems |
| US9653861B2 (en) | 2014-09-17 | 2017-05-16 | Corning Optical Communications Wireless Ltd | Interconnection of hardware components |
| US9685782B2 (en) | 2010-11-24 | 2017-06-20 | Corning Optical Communications LLC | Power distribution module(s) capable of hot connection and/or disconnection for distributed antenna systems, and related power units, components, and methods |
| US9699723B2 (en) | 2010-10-13 | 2017-07-04 | Ccs Technology, Inc. | Local power management for remote antenna units in distributed antenna systems |
| US9785175B2 (en) | 2015-03-27 | 2017-10-10 | Corning Optical Communications Wireless, Ltd. | Combining power from electrically isolated power paths for powering remote units in a distributed antenna system(s) (DASs) |
| US10257056B2 (en) | 2012-11-28 | 2019-04-09 | Corning Optical Communications LLC | Power management for distributed communication systems, and related components, systems, and methods |
| US10455497B2 (en) | 2013-11-26 | 2019-10-22 | Corning Optical Communications LLC | Selective activation of communications services on power-up of a remote unit(s) in a wireless communication system (WCS) based on power consumption |
| CN111413559A (en) * | 2020-03-05 | 2020-07-14 | 国网浙江省电力有限公司湖州供电公司 | Current switching terminal state detection device |
| US10992484B2 (en) | 2013-08-28 | 2021-04-27 | Corning Optical Communications LLC | Power management for distributed communication systems, and related components, systems, and methods |
| US11296504B2 (en) | 2010-11-24 | 2022-04-05 | Corning Optical Communications LLC | Power distribution module(s) capable of hot connection and/or disconnection for wireless communication systems, and related power units, components, and methods |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1116610C (en) * | 1999-10-20 | 2003-07-30 | 神达电脑股份有限公司 | Rotation speed measuring circuit for electric fan |
| CN2675913Y (en) * | 2003-11-28 | 2005-02-02 | 幸孺企业有限公司 | Improved caution structure of cooling fan |
| CN2731561Y (en) * | 2004-10-13 | 2005-10-05 | 七盟电子工业股份有限公司 | Failure warning system of radiator fan |
-
2006
- 2006-03-02 CN CNB2006100341181A patent/CN100530132C/en not_active Expired - Fee Related
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| US10045288B2 (en) | 2010-10-13 | 2018-08-07 | Corning Optical Communications LLC | Power management for remote antenna units in distributed antenna systems |
| US11671914B2 (en) | 2010-10-13 | 2023-06-06 | Corning Optical Communications LLC | Power management for remote antenna units in distributed antenna systems |
| US11224014B2 (en) | 2010-10-13 | 2022-01-11 | Corning Optical Communications LLC | Power management for remote antenna units in distributed antenna systems |
| US9419712B2 (en) | 2010-10-13 | 2016-08-16 | Ccs Technology, Inc. | Power management for remote antenna units in distributed antenna systems |
| US11212745B2 (en) | 2010-10-13 | 2021-12-28 | Corning Optical Communications LLC | Power management for remote antenna units in distributed antenna systems |
| US11178609B2 (en) | 2010-10-13 | 2021-11-16 | Corning Optical Communications LLC | Power management for remote antenna units in distributed antenna systems |
| US10425891B2 (en) | 2010-10-13 | 2019-09-24 | Corning Optical Communications LLC | Power management for remote antenna units in distributed antenna systems |
| US10420025B2 (en) | 2010-10-13 | 2019-09-17 | Corning Optical Communications LLC | Local power management for remote antenna units in distributed antenna systems |
| US9699723B2 (en) | 2010-10-13 | 2017-07-04 | Ccs Technology, Inc. | Local power management for remote antenna units in distributed antenna systems |
| US10104610B2 (en) | 2010-10-13 | 2018-10-16 | Corning Optical Communications LLC | Local power management for remote antenna units in distributed antenna systems |
| US9685782B2 (en) | 2010-11-24 | 2017-06-20 | Corning Optical Communications LLC | Power distribution module(s) capable of hot connection and/or disconnection for distributed antenna systems, and related power units, components, and methods |
| US11114852B2 (en) | 2010-11-24 | 2021-09-07 | Corning Optical Communications LLC | Power distribution module(s) capable of hot connection and/or disconnection for wireless communication systems, and related power units, components, and methods |
| US11715949B2 (en) | 2010-11-24 | 2023-08-01 | Corning Optical Communications LLC | Power distribution module(s) capable of hot connection and/or disconnection for wireless communication systems, and related power units, components, and methods |
| US11296504B2 (en) | 2010-11-24 | 2022-04-05 | Corning Optical Communications LLC | Power distribution module(s) capable of hot connection and/or disconnection for wireless communication systems, and related power units, components, and methods |
| US10454270B2 (en) | 2010-11-24 | 2019-10-22 | Corning Optical Communicatons LLC | Power distribution module(s) capable of hot connection and/or disconnection for wireless communication systems, and related power units, components, and methods |
| CN102749974A (en) * | 2011-04-22 | 2012-10-24 | 鸿富锦精密工业（深圳）有限公司 | Fan failure alarm circuit |
| CN103218282A (en) * | 2012-01-18 | 2013-07-24 | 精英电脑股份有限公司 | Power supply indicating device with fan monitoring function and control method of power supply indicating device |
| US9729251B2 (en) | 2012-07-31 | 2017-08-08 | Corning Optical Communications LLC | Cooling system control in distributed antenna systems |
| US9154222B2 (en) | 2012-07-31 | 2015-10-06 | Corning Optical Communications LLC | Cooling system control in distributed antenna systems |
| US10999166B2 (en) | 2012-11-28 | 2021-05-04 | Corning Optical Communications LLC | Power management for distributed communication systems, and related components, systems, and methods |
| US10530670B2 (en) | 2012-11-28 | 2020-01-07 | Corning Optical Communications LLC | Power management for distributed communication systems, and related components, systems, and methods |
| US11665069B2 (en) | 2012-11-28 | 2023-05-30 | Corning Optical Communications LLC | Power management for distributed communication systems, and related components, systems, and methods |
| US10257056B2 (en) | 2012-11-28 | 2019-04-09 | Corning Optical Communications LLC | Power management for distributed communication systems, and related components, systems, and methods |
| US9497706B2 (en) | 2013-02-20 | 2016-11-15 | Corning Optical Communications Wireless Ltd | Power management in distributed antenna systems (DASs), and related components, systems, and methods |
| US10992484B2 (en) | 2013-08-28 | 2021-04-27 | Corning Optical Communications LLC | Power management for distributed communication systems, and related components, systems, and methods |
| US11516030B2 (en) | 2013-08-28 | 2022-11-29 | Corning Optical Communications LLC | Power management for distributed communication systems, and related components, systems, and methods |
| US10455497B2 (en) | 2013-11-26 | 2019-10-22 | Corning Optical Communications LLC | Selective activation of communications services on power-up of a remote unit(s) in a wireless communication system (WCS) based on power consumption |
| US9509133B2 (en) | 2014-06-27 | 2016-11-29 | Corning Optical Communications Wireless Ltd | Protection of distributed antenna systems |
| US9653861B2 (en) | 2014-09-17 | 2017-05-16 | Corning Optical Communications Wireless Ltd | Interconnection of hardware components |
| US9785175B2 (en) | 2015-03-27 | 2017-10-10 | Corning Optical Communications Wireless, Ltd. | Combining power from electrically isolated power paths for powering remote units in a distributed antenna system(s) (DASs) |
| CN111413559A (en) * | 2020-03-05 | 2020-07-14 | 国网浙江省电力有限公司湖州供电公司 | Current switching terminal state detection device |
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| Publication number | Publication date |
|---|---|
| CN100530132C (en) | 2009-08-19 |
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Granted publication date: 20090819 Termination date: 20110302 |