CN205805976U - A kind of monolithic processor controlled radiator fan - Google Patents
A kind of monolithic processor controlled radiator fan Download PDFInfo
- Publication number
- CN205805976U CN205805976U CN201620249386.4U CN201620249386U CN205805976U CN 205805976 U CN205805976 U CN 205805976U CN 201620249386 U CN201620249386 U CN 201620249386U CN 205805976 U CN205805976 U CN 205805976U
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- China
- Prior art keywords
- single chip
- machine controlling
- chip machine
- circuit
- fan
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Abstract
The utility model discloses a kind of monolithic processor controlled radiator fan, its circuit includes: fan motor that single chip machine controlling circuit, fan drive circuit are connected with fan drive circuit and the power supply circuits powered for single chip machine controlling circuit；One PWM module accesses single chip machine controlling circuit, described single chip machine controlling circuit and a FG/RD signal output apparatus connect, described single chip machine controlling circuit and a Hall element connect, by Hall element electromagnetic induction, the signal sensed is fed back to single chip machine controlling circuit, after single chip machine controlling circuit is by decoding computing, output signal, controls fan drive circuit work, drives fan motor operating.The curve that this utility model can realize this utility model radiating fan rotation speed by Hall element works.The range of accommodation of fan is more wide in range and accurate.
Description
Technical field:
This utility model relates to fan product technical field, refers in particular to a kind of to regulate rotation speed of the fan under any dutycycle
Monolithic processor controlled radiator fan.
Background technology:
Along with the development of electronic industry, the development of electronic product is increasingly towards high-performance, altofrequency, high speed with lightening
Direction evolution.Along with the performance of electronic product constantly promotes, arithmetic speed is increasingly faster, the computing speed of its inside chip group
Degree constantly promotes, and number of chips is continuously increased, and the heat distributed during chip operation the most correspondingly increases, if dispersed not in time
These heats, it will the performance of extreme influence electronic product, make the arithmetic speed of electronic product reduce, along with constantly tiring out of heat
Long-pending, it is also possible to burn electronic product, it is therefore necessary to electronic product is dispelled the heat.
Fan plays particularly important role in present stage electronic product radiating, in order to realize the accurate control to heat radiation
System, it is common that control the size of heat dissipation capacity by controlling the rotating speed of fan.Generally, by pulse width modulation control
Device (PWM controller) controls the rotating speed of fan motor.Such as the radiator fan of direct current generator, it is driven by regulation
The mode of dynamic Voltage Pulse Width, changes the amplitude of the voltage being transported to fan motor, thus reaches to change direct current generator and turn
The purpose of speed.Meanwhile, control circuit understands the duty of motor by the feedback of FD/RD signal.In this mode of speed regulation, right
Regulation in rotation speed of the fan is not shaped form, and the rotating speed of fan stepped change, nothing can occur according to the change of PWM
Method realizes the curve adjustment of rotation speed of the fan under any one dutycycle.
In view of this, the present inventor proposes techniques below scheme.
Utility model content:
The purpose of this utility model is to overcome the deficiencies in the prior art, it is provided that one can regulate wind under any dutycycle
The monolithic processor controlled radiator fan of fan rotating speed.
In order to solve above-mentioned technical problem, this utility model have employed following technical proposals: this monolithic processor controlled heat radiation
The circuit of fan includes: fan motor that single chip machine controlling circuit, fan drive circuit are connected with fan drive circuit and
The power supply circuits powered for single chip machine controlling circuit；One PWM module accesses single chip machine controlling circuit, described Single-chip Controlling electricity
Lu Yuyi FG/RD signal output apparatus connects, and described single chip machine controlling circuit and a Hall element connect, and are passed by Hall
The signal sensed is fed back to single chip machine controlling circuit by sensor electromagnetic induction, after single chip machine controlling circuit is by decoding computing,
Output signal, controls fan drive circuit work, drives fan motor operating.
Furthermore, in technique scheme, described power supply circuits, PWM module, FG/RD signal output apparatus lead to
Cross interface to be connected with single chip machine controlling circuit.
Furthermore, in technique scheme, it is provided with whole between described single chip machine controlling circuit and power supply circuits
Stream mu balanced circuit.
Furthermore, in technique scheme, described Hall element has four terminals.
After using technique scheme, owing to Hall element is generally of four binding posts, wherein two is Hall
The input of the bias current of sensor, another two is the outfan of Hall voltage.If two outfans constitute external loop, will
Produce Hall current.The reference voltage that the setting of bias current is generally exported by single chip machine controlling circuit of the present utility model, its
Output voltage is linear with applied field strengths, so can realize this utility model radiator fan by Hall element
The curve work of rotating speed.
Operation principle of the present utility model is: pre-set accordingly by the singlechip chip in single chip machine controlling circuit
Control program, control Hall element accurately.During work, the pulse duty factor of PWM module is set, works as Hall element
The signal synchronous feedback sensed is to singlechip chip, and then singlechip chip is by the letter by exporting correspondence after decoding, computing
Number, thus control drive circuit works, make fan running.This utility model owing to adding Hall element in circuit, institute
The curve adjustment of the fan work rotating speed can be arranged under any dutycycle, the range of accommodation of fan is more wide in range and accurate
Really.
Accompanying drawing illustrates:
Fig. 1 is circuit theory diagrams of the present utility model；
Fig. 2 is this utility model circuit diagram.
Detailed description of the invention:
Below in conjunction with specific embodiments and the drawings, this utility model is further illustrated.
As shown in Fig. 1, Fig. 2, this utility model is a kind of monolithic processor controlled radiator fan, and the circuit of this fan includes:
Fan motor 3 that single chip machine controlling circuit 1, fan drive circuit 2 are connected with fan drive circuit 2 and for Single-chip Controlling
The power supply circuits 4 that circuit is powered；One PWM module 5 accesses single chip machine controlling circuit 1.Described single chip machine controlling circuit 1 and
FG/RD signal output apparatus 6 connects.
The rectification that described single chip machine controlling circuit 1 power input is provided with diode D1 and electric capacity C1 composition is steady
Volt circuit 12.Single chip machine controlling circuit 1 realizes the connection with external circuit by an interface 11, and this interface 11 has four and connects
Line end, wherein two is the power input as power supply circuits 1, and two other terminals are as the input and output of signal, i.e.
The signal input of PWM module 5 and FG/RD signal export.
Fan drive circuit 2 accesses the outfan of single chip machine controlling circuit 1, exports correspondence by single chip machine controlling circuit 1
Signal, thus drive fan drive circuit 2 to work, drive fan motor 3 to rotate.
Power supply circuits 4 are as power supply of the present utility model, and it provides DC source to this utility model, usually 6-12
Volt.
PWM module 5 is used for setting corresponding pulse duty factor, plays the function of regulation rotation speed of the fan.FG/RD signal is defeated
Go out circuit 6 for receiving the tach signal of fan motor 3 correspondence, level signal, thus repairing of correspondence is made in the adjustment to rotating speed
Just and process.
Described single chip machine controlling circuit 1 is connected with a Hall element 7, will sense by Hall element 7 electromagnetic induction
The signal that should arrive feeds back to single chip machine controlling circuit 1, after single chip machine controlling circuit 1 is by decoding computing, and output signal, control wind
Fan drive circuit 2 works, and drives fan motor 3 to operate.This Hall element 7 has four terminals, wherein, bias current
Input accesses this single chip machine controlling circuit 1, outfan one end access single chip machine controlling circuit 1 of Hall voltage, one end ground connection,
Realize the Guan Bi of circuit.
During work, arranging the pulse duty factor of PWM module 5, the signal synchronous feedback that Hall element 7 senses is to monolithic
Machine control circuit 1, then single chip machine controlling circuit 1 is by the signal by exporting correspondence after decoding, computing, thus controls to drive electricity
Road 2 works, and makes fan motor 3 operate.This utility model is owing to adding Hall element 7 in circuit, it is possible to arrange
The curve adjustment of the fan work rotating speed under any dutycycle, the range of accommodation of fan is more wide in range and accurate.
Certainly, the foregoing is only specific embodiment of the utility model, not limit this utility model and implement
Scope, all equivalence changes done according to structure, feature and principle described in this utility model claim or modification, all should wrap
Include in this utility model claim.
Claims (4)
1. a monolithic processor controlled radiator fan, the circuit of this fan includes: single chip machine controlling circuit (1), fans drive electricity
Fan motor (3) that road (2) is connected with fan drive circuit (2) and the power supply electricity powered for single chip machine controlling circuit (1)
Road (4)；One PWM module (5) accesses single chip machine controlling circuit (1), described single chip machine controlling circuit (1) and a FG/RD signal
Output circuit (6) connects, it is characterised in that: described single chip machine controlling circuit (1) is connected with a Hall element (7), passes through
The signal sensed is fed back to single chip machine controlling circuit (1), single chip machine controlling circuit (1) by Hall element (7) electromagnetic induction
After decoding computing, output signal, control fan drive circuit (2) work, drive fan motor (3) operating.
The monolithic processor controlled radiator fan of one the most according to claim 1, it is characterised in that: described power supply circuits
(4), PWM module (5), FG/RD signal output apparatus (6) are connected with single chip machine controlling circuit (1) by interface (11).
The monolithic processor controlled radiator fan of one the most according to claim 2, it is characterised in that: described Single-chip Controlling
Regulator rectifier circuit (12) it is provided with between circuit (1) and power supply circuits (4).
The monolithic processor controlled radiator fan of one the most according to claim 1, it is characterised in that: described Hall element
(7) there are four terminals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620249386.4U CN205805976U (en) | 2016-03-28 | 2016-03-28 | A kind of monolithic processor controlled radiator fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620249386.4U CN205805976U (en) | 2016-03-28 | 2016-03-28 | A kind of monolithic processor controlled radiator fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205805976U true CN205805976U (en) | 2016-12-14 |
Family
ID=58144078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620249386.4U Expired - Fee Related CN205805976U (en) | 2016-03-28 | 2016-03-28 | A kind of monolithic processor controlled radiator fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205805976U (en) |
-
2016
- 2016-03-28 CN CN201620249386.4U patent/CN205805976U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170703 Address after: 523000 Guangdong city of Dongguan Province Huang Town Fushun Village Road No. 1 big hem Patentee after: DONGGUAN CHAMPION ELECTRONIC TECHNOLOGY CO.,LTD. Address before: 523000 Guangdong city of Dongguan Province Huang Town Fushun Village Road No. 1 big hem Patentee before: Zhang Zhengkun |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |