TW200734856A - System and method of controlling fan speed - Google Patents

System and method of controlling fan speed

Info

Publication number
TW200734856A
TW200734856A TW095107198A TW95107198A TW200734856A TW 200734856 A TW200734856 A TW 200734856A TW 095107198 A TW095107198 A TW 095107198A TW 95107198 A TW95107198 A TW 95107198A TW 200734856 A TW200734856 A TW 200734856A
Authority
TW
Taiwan
Prior art keywords
fan speed
controlling device
fan
controlling
pwm signal
Prior art date
Application number
TW095107198A
Other languages
Chinese (zh)
Inventor
Ting Huang
Qiu Hu
Original Assignee
Hon Hai Prec Ind Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hon Hai Prec Ind Co Ltd filed Critical Hon Hai Prec Ind Co Ltd
Priority to TW095107198A priority Critical patent/TW200734856A/en
Publication of TW200734856A publication Critical patent/TW200734856A/en

Links

Landscapes

  • Control Of Electric Motors In General (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)

Abstract

A system of controlling fan speed includes a controlling device and a fan, which connects to the controlling device. The controlling device defines a plurality of fan speed ranges corresponding to different temperatures. A fan speed controlling method based on the system includes steps as follows: the controlling device detecting temperature and outputting a PWM signal to the fan; the fan outputting a fan speed signal to the controlling device; when the fan speed is within a predetermined fan speed range, the PWM signal keeping unchanged; when the fan speed isn't, the controlling device modulating the PWM signal until the fan speed is within the predetermined range.
TW095107198A 2006-03-03 2006-03-03 System and method of controlling fan speed TW200734856A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW095107198A TW200734856A (en) 2006-03-03 2006-03-03 System and method of controlling fan speed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW095107198A TW200734856A (en) 2006-03-03 2006-03-03 System and method of controlling fan speed

Publications (1)

Publication Number Publication Date
TW200734856A true TW200734856A (en) 2007-09-16

Family

ID=57913389

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095107198A TW200734856A (en) 2006-03-03 2006-03-03 System and method of controlling fan speed

Country Status (1)

Country Link
TW (1) TW200734856A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8332074B2 (en) 2009-10-30 2012-12-11 Wistron Corporation Thermal protection method and related system for a computer system
CN102968166A (en) * 2012-12-12 2013-03-13 曙光信息产业(北京)有限公司 Radiator of server system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8332074B2 (en) 2009-10-30 2012-12-11 Wistron Corporation Thermal protection method and related system for a computer system
TWI399635B (en) * 2009-10-30 2013-06-21 Wistron Corp Thermal protection method and related system for a computer system
CN102968166A (en) * 2012-12-12 2013-03-13 曙光信息产业(北京)有限公司 Radiator of server system

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