CN101075142A - Fan linear temperature speed adjuster - Google Patents
Fan linear temperature speed adjuster Download PDFInfo
- Publication number
- CN101075142A CN101075142A CNA2006100354586A CN200610035458A CN101075142A CN 101075142 A CN101075142 A CN 101075142A CN A2006100354586 A CNA2006100354586 A CN A2006100354586A CN 200610035458 A CN200610035458 A CN 200610035458A CN 101075142 A CN101075142 A CN 101075142A
- Authority
- CN
- China
- Prior art keywords
- fan
- control
- linear
- temperature
- rotation speed
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Images
Landscapes
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
A method for controlling rotary speed of fan in linear mode includes controlling power supply voltage of fan in linear mode by making final control unit be operated on linear operation region in order to let rotary speed of fan be changed in following to variation of temperature on linear mode for avoiding rotary speed saltus of fan.
Description
Affiliated technical field
The present invention relates to a kind ofly rotation speed of the fan be carried out the device and method of Linear Control, can be widely used in rotation speed of the fan is carried out based on temperature controlling according to temperature.
Background technology
Existing rotation speed of the fan temperature-controlled process, comprise two kinds of digital control method and analog control methods, wherein, the digital controlling party genealogy of law is carried out segmentation rotating speed switching controls according to the temperature conditions of Be Controlled environment, can cause like this in the critical point of temperature section, rotation speed of the fan frequently switching at a high speed and between the low speed, has influenced the serviceable life of fan; And analog controlling party rule has used more electronic devices and components to design, circuit complexity, with high costs.
Summary of the invention
For overcoming the above-mentioned shortcoming of present rotation speed of the fan temperature-control circuit, the present invention proposes a kind of linear revolution speed control device that constitutes by simulation electronic component, this installs, and not only circuit is simple, with low cost, and has the Linear Control characteristic, makes the rotation speed of the fan can be with the temperature conditions linear change.
The technical solution used in the present invention is: 1, use a divider resistance, ultimate temperature condition according to expection is controlled this device maximal work voltage, making the rear end control element condition of work that reaches capacity, promptly is to make fan be issued to maximum (top) speed in the ultimate temperature condition.2, use a thermistor, temperature to the Be Controlled environment detects, and along with the reduction of Be Controlled environment temperature the linear operating voltage that reduces the semiconductor control element of rear end, make it to withdraw from state of saturation, enter the linear work district, the operating voltage of Linear Control fan, thus reach the purpose of Linear Control rotation speed of the fan.For DC fan, control element is a transistor, and for ac fan, control element is the semiconductor controllable silicon.
The invention has the beneficial effects as follows that circuit is simple, with low cost, only need use a thermistor, divider resistance and transistor or controllable silicon, and have the characteristic of full-automatic linear control.
Description of drawings
The present invention is further described below in conjunction with accompanying drawing.
Fig. 1 is an electrical schematic diagram of the present invention.
Among Fig. 1,1 is thermistor, and 2 is divider resistance, and 3 is the semiconductor control element, can select transistor (DC fan) or semiconductor controllable silicon (ac fan) as required, and 4 is controlled fan.
Embodiment
Among Fig. 1, use divider resistance (2) to regulate or determine to make the maximal work voltage of this device semiconductor control element (3) saturation conduction, thereby make fan be issued to maximum (top) speed at limit condition of operation according to the environment temperature maximum conditions of expection.Thermistor (1) detects the temperature variation of Be Controlled environment, and along with the reduction of Be Controlled environment temperature the linear operating voltage that reduces semiconductor control element (3), make it to withdraw from the saturation conduction state, enter the linear work district, thereby under non-ultimate temperature condition, can linearity change the operating voltage of fan (4) along with the temperature variation of Be Controlled environment, thereby realize the rotating speed of fan (4) is carried out the purpose of Linear Control.
Claims (4)
1. the temperature control equipment of a rotation speed of the fan and method, feature is: use analog electronics to constitute control circuit, have the characteristic of Linear Control rotation speed of the fan.
2. control device according to claim 1 and method, it is characterized in that: to DC fan, use transistor, to ac fan, use the semiconductor bidirectional triode thyristor, as final control element, and make this final control element operate mainly in the linear work district, thereby reach the purpose of Linear Control rotation speed of the fan.
3. control device according to claim 1 and method is characterized in that: use thermal sensing element to detect the temperature variation of Be Controlled environment, and control final control element and operate mainly in the linear work district.
4. control device according to claim 1 and method is characterized in that: use a divider resistance, according to the ultimate temperature condition of expection, regulate or determine the limit condition of operation of this device, make fan be issued to maximum (top) speed in the ultimate temperature condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100354586A CN101075142A (en) | 2006-05-15 | 2006-05-15 | Fan linear temperature speed adjuster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100354586A CN101075142A (en) | 2006-05-15 | 2006-05-15 | Fan linear temperature speed adjuster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101075142A true CN101075142A (en) | 2007-11-21 |
Family
ID=38976223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006100354586A Pending CN101075142A (en) | 2006-05-15 | 2006-05-15 | Fan linear temperature speed adjuster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101075142A (en) |
-
2006
- 2006-05-15 CN CNA2006100354586A patent/CN101075142A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20100145548A1 (en) | Fan driving circuit | |
| TWM436213U (en) | Temperature control system for hard disk drive | |
| US9791173B2 (en) | Heating device having heating transistor unit | |
| WO2015010383A1 (en) | Liquid crystal display | |
| US10992296B2 (en) | Circuit arrangement for the temperature-dependent actuation of a switching element | |
| CN207801793U (en) | A kind of motor speed control device | |
| CN1995758A (en) | Linear temperature speed controller for fan | |
| TW200922109A (en) | Device of fan speed control | |
| US9488183B2 (en) | Fan rotation speed controlling device | |
| CN105465027B (en) | Device for intelligently controlling linear rotating speed of cooling fan | |
| CN101075142A (en) | Fan linear temperature speed adjuster | |
| US20120068652A1 (en) | Fan drive circuit for electronic device | |
| CN100403648C (en) | Fan speed regulation system simultaneously possessing PWM and external control | |
| CN109429469A (en) | The fan rotation speed control apparatus and control method of power supply unit | |
| CN102109862B (en) | Temperature control circuit and electronic equipment with same | |
| CN2935673Y (en) | TV set heat radiator | |
| CN101956724A (en) | Fan drive device and fan system | |
| CN104881096A (en) | Heat dissipation system | |
| CN103744494B (en) | Aperture ratio adjustment device for air inlet of computer | |
| CN207382768U (en) | The fan rotation speed control apparatus of power supply unit | |
| CN110107997A (en) | Control method, device and the air conditioner of air conditioner | |
| CN209961355U (en) | Low-power consumption temperature measurement circuit and portable temperature measurement equipment | |
| CN2872783Y (en) | Speed adjuster of cooling fan for electromagnetic cooker | |
| CN101242699B (en) | Intelligent heat radiation control device for non-pole lamp rectifier | |
| CN206144834U (en) | Electricity fan control circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |