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SE9101822L - CONTROL OF A COOL FLASH WITH A PERSONAL COMPUTER - Google Patents

CONTROL OF A COOL FLASH WITH A PERSONAL COMPUTER

Info

Publication number
SE9101822L
SE9101822L SE9101822A SE9101822A SE9101822L SE 9101822 L SE9101822 L SE 9101822L SE 9101822 A SE9101822 A SE 9101822A SE 9101822 A SE9101822 A SE 9101822A SE 9101822 L SE9101822 L SE 9101822L
Authority
SE
Sweden
Prior art keywords
fan
personal computer
control
control circuit
temperature sensor
Prior art date
Application number
SE9101822A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE9101822D0 (en
SE467475B (en
Inventor
Urban Eriksson
Original Assignee
Urban Eriksson
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 Urban Eriksson filed Critical Urban Eriksson
Priority to SE9101822A priority Critical patent/SE9101822L/en
Publication of SE9101822D0 publication Critical patent/SE9101822D0/en
Priority to PCT/SE1992/000414 priority patent/WO1992022863A1/en
Publication of SE467475B publication Critical patent/SE467475B/en
Publication of SE9101822L publication Critical patent/SE9101822L/en

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Control Of Temperature (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

A control device for controlling a personal computer cooling fan, which comprises a temperature sensor and a control circuit intended to supply the fan with a voltage in response to a signal received from the temperature sensor. The invention is characterized by the combination that the control circuit (1) is intended, when the personal computer concerned is switched on, to supply the fan (2) with a voltage which is higher than its idling voltage over a limited, predetermined period of time, and that the control device (1) has a dimension of at highest about 4 x 3 cm and a thickness of at most about 1 cm, thereby enabling the device to be placed in the housing (5) of the fan (2); and in that provided between the control circuit (1) and the sensor body (6) of the temperature sensor (3) is a rigid electric conductor (7') having a length sufficient to enable the sensor body (6) to be placed in the airflow through the fan (2).
SE9101822A 1991-06-13 1991-06-13 CONTROL OF A COOL FLASH WITH A PERSONAL COMPUTER SE9101822L (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE9101822A SE9101822L (en) 1991-06-13 1991-06-13 CONTROL OF A COOL FLASH WITH A PERSONAL COMPUTER
PCT/SE1992/000414 WO1992022863A1 (en) 1991-06-13 1992-06-12 A cooling fan control arrangement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9101822A SE9101822L (en) 1991-06-13 1991-06-13 CONTROL OF A COOL FLASH WITH A PERSONAL COMPUTER

Publications (3)

Publication Number Publication Date
SE9101822D0 SE9101822D0 (en) 1991-06-13
SE467475B SE467475B (en) 1992-07-20
SE9101822L true SE9101822L (en) 1992-07-20

Family

ID=20383030

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9101822A SE9101822L (en) 1991-06-13 1991-06-13 CONTROL OF A COOL FLASH WITH A PERSONAL COMPUTER

Country Status (2)

Country Link
SE (1) SE9101822L (en)
WO (1) WO1992022863A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4309187C1 (en) * 1993-03-22 1994-06-16 Siemens Nixdorf Inf Syst Controlling ventilation of data processing system - operating number and type of processing modules to calculate appropriate ventilation fan feed rate
US5526289A (en) * 1993-06-14 1996-06-11 Compaq Computer Corporation Temperature dependent fan control circuit for personal computer
JP3874188B2 (en) * 2003-02-13 2007-01-31 ノーリツ鋼機株式会社 LED light source temperature control device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1568507A (en) * 1976-10-15 1980-05-29 Colair Electronics Ltd Electric motor control units
JPS58162799A (en) * 1982-03-15 1983-09-27 ロトロン・インコ−ポレ−テツド Temperature following direct current fan speed controller
DE3342031B4 (en) * 1982-11-23 2005-01-13 Papst Licensing Gmbh & Co. Kg Circuit arrangement for speed control of an electric motor

Also Published As

Publication number Publication date
SE9101822D0 (en) 1991-06-13
WO1992022863A1 (en) 1992-12-23
SE467475B (en) 1992-07-20

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