CN201134027Y - Fan control circuit - Google Patents
Fan control circuit Download PDFInfo
- Publication number
- CN201134027Y CN201134027Y CNU2007200773289U CN200720077328U CN201134027Y CN 201134027 Y CN201134027 Y CN 201134027Y CN U2007200773289 U CNU2007200773289 U CN U2007200773289U CN 200720077328 U CN200720077328 U CN 200720077328U CN 201134027 Y CN201134027 Y CN 201134027Y
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- CN
- China
- Prior art keywords
- fan
- signal
- port
- fantach
- control circuitry
- 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.)
- Expired - Fee Related
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/005—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by changing flow path between different stages or between a plurality of compressors; Load distribution between compressors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
Abstract
The utility model discloses a fan control circuit, which comprises a fan controller and a plurality of fan equipments, wherein, each fan equipment is provided with at least one communication port and the fan controller is provided with at least one signal port, moreover, the fan controller circuit also comprises a selector, and the selector is respectively connected with the fan controller and the fan equipment and used for selecting at least one communication port from the communication ports to build communication with the signal port of the fan controller according to received control signals. The signal port is an FANTACH signal input port, and the communication port is an FANTACH signal output port. The fan equipment is provided with twelve FANTACH signal output ports, whereas the fan controller is only provided with eight FANTACH signal input ports, wherein, four FANTACH signal output ports are directly connected with four FANTACH signal input ports, and the other eight FANTACH signal output ports are connected with the rest four FANTACH signal input ports by the selector. The fan controller can arbitrarily read the parameter information of each fan, thus achieving the effect of controlling the operation of each fan.
Description
Technical field
The utility model relates to a kind of fan control circuitry, is specifically related to the fan control circuitry that a kind of communication port of selecting fan apparatus communicates.
Background technology
Along with the development of electronic industry, the integrated level of electronic product is more and more higher, and the heat of its system also obviously increases during the electronic component operation, therefore just requires to satisfy the heat abstractor of increasing demand.As a kind of common heat radiation instrument, the kind of fan and quantity also constantly increase thereupon.Therefore require fan control circuitry can adapt to the control requirement of a plurality of fans, as monitoring the different rotating speeds of different fans simultaneously, and the communication of other parameters such as temperature.
See also Fig. 1, it is the theory structure synoptic diagram of existing a kind of fan control circuitry.Fan control circuitry 100 comprises a plurality of fans equipment 101 and a fan governor 102.Fan apparatus 101 links to each other with fan governor 102, and fan governor 102 communicates each fan apparatus 101, in order to directly to read the information of each fan, as the rotating speed of fan, current temperature etc., and sends control information corresponding in view of the above.
See also Fig. 2, it is an example schematic of fan control circuitry.Fan control circuitry 200 comprises several fan apparatus 201 and a fan governor 202.This fan governor 202 is provided with several PWM (pulse width modulation) signal output port 203 and a plurality of FANTACH (rotation speed of the fan) signal input port 204.Each fan apparatus 201 is provided with a pwm signal input port 205 and two FANTACH signal output ports 206.Fan governor 202 sends a pwm signal to a certain fan apparatus 201, and receives the FANTACH signal that returns from this fan apparatus 201, adjusts the pwm signal size of sending in view of the above.Existing a kind of common fan governor 202 can provide 2 groups of PWM (pulse width modulation) signal port, 8 FANTACH (rotation speed of the fan) signal port.This fan governor 202 can connect simultaneously can 4 6PIN fan apparatus 201.But, along with the increase of IC chip integration and product size require to diminish, the fan number that is provided with in the system can get more and more, such as, when being provided with the fan apparatus 201 that reaches 6 6PIN in the system, those fan apparatus 201 can produce 12 FANTACH signals simultaneously, promptly have 12 FANTACH signal output ports 206.Thus, FANTACH signal input port 204 numbers on the existing fan governor 202 are not enough, and make fan governor 202 can't read those fan apparatus 201 signal of FANTACH arbitrarily at any time, cause the information that accurately to obtain each fan thus, and then influence is to fan control.
The Taiwan patent No. is in the patent documentation of TW00362788, a kind of device of multi-task monitoring computing machine video signal is disclosed, can import the video signal of many computing machines, and select wherein the video signal of a computing machine to send in the monitor for supervision with multitask mode.The device of multi-task monitoring computing machine video signal comprises: three groups of on-off circuits, and import the red, green, blue video signal of these many computing machines respectively, and respectively organize and all contain a plurality of diode circuits in the on-off circuit; One control signal generation circuit, it is input as a video signal and selects signal, in order to produce a plurality of control signals, to control each corresponding diode circuit in three groups of on-off circuits; Three groups of voltage amplifier circuits in order to the Dc bias of each diode in these three groups of on-off circuits to be provided, and are amplified output with the video signal of being imported; Three groups of current amplification circuits amplify in order to will make electric current from the output of these three groups of voltage amplifier circuits respectively; Circuit is selected in one synchronous signal multitask, receives many groups synchronizing signal of many computing machines of being monitored, and utilizes this video signal to select signal to select one group of wherein corresponding synchronizing signal as output; And an interface connecting circuit, in order to select the output of circuit to deliver in this monitor the output and the synchronizing signal multitask of three groups of current amplification circuits, to reach the wherein purpose of a computing machine video signal of monitoring.
Above-mentioned patent be with the mode of multitask select a plurality of computing machines wherein one video signal send in the monitor for supervision.But, for the fan control field, at present not scheme solves following technical matters: the port number of the FANTACH signal input port 204 of fan governor 202 is during less than the number of fan apparatus 201 all FANTACH signal output ports 206, can't allow fan governor 202 as required each fan information be read at any time, and then can not reach the technological deficiency of fine each fan running of control.
Summary of the invention
The fan control circuitry that the purpose of this utility model is to provide a kind of communication port of selecting fan apparatus to communicate, casually port number with fan governor in the solution prior art is not enough, can't allow fan governor as required the parameter signals such as rotating speed of any fan be read at any time, and then can not reach the technological deficiency of fine each fan running of control.
In order to achieve the above object, the utility model provides a kind of fan control circuitry, comprise a fan governor and several fan apparatus, each fan apparatus is provided with at least one communication port, this fan governor is provided with some signal ports, this fan control circuitry also comprises a selector switch, this selector switch connects this fan governor and fan apparatus respectively, be used for according to the control signal that receives, from those communication port, select at least one communication port to set up and the communicating by letter of the signal port of this fan governor.
Alternatively, the part communication port of those fan apparatus directly is connected with those signal ports.
Preferably, described selector switch comprises several alternative change-over switches, each alternative change-over switch one end connects a signal port of this fan governor, the other end optionally connects two these communication port, be used for according to this control signal that receives, one of them foundation in these two communication port of switching selection is communicated by letter with this signal port.
Especially, described alternative change-over switch comprises first triode and second triode, described circuit comprises that also one is used for the control signal that general input/output terminal GPIO sends is carried out the reversing device of reverse process, this first triode comprises first base stage, first current collection/emitter, second current collection/emitter, the general input/output terminal GPIO of this of the first base stage connected system, first current collection/emitter connects this communication port, second current collection/emitter connects this signal port, this second triode comprises second base stage, the 3rd current collection/emitter, the 4th current collection/emitter, second base stage is through the general input/output terminal GPIO of this reversing device connected system, the 3rd current collection/emitter connects another this communication port, and the 4th current collection/emitter connects this signal port.
Especially, this signal port is the FANTACH signal input port, and this communication port is the FANTACH signal output port.The part communication port of those fan apparatus directly is connected with those signal ports.
Compared with prior art, the utility model can make by selector switch and select arbitrarily by fan governor communication port communicates, control the working order of each fan in view of the above.The utility model fan control circuitry can be more suitable for the demand that present IC chip size is little, level of integrated system is high.
Description of drawings
Fig. 1 is the theory structure synoptic diagram of existing a kind of fan control circuitry;
Fig. 2 is an example schematic of existing fan control circuitry;
Fig. 3 is the principle assumption diagram of first kind of fan control circuitry of the present utility model;
Fig. 4 is the principle assumption diagram of another kind of fan control circuitry of the present utility model;
Fig. 5 is the example structure figure of fan control circuitry of the present utility model.
Embodiment
Following with reference to accompanying drawing, specify the present invention.
See also Fig. 3, it is the principle assumption diagram of first kind of fan control circuitry of the present utility model.Fan control circuitry 300 comprises a fan governor 301, several fan apparatus 302 and a selector switch 303, and each fan apparatus 302 is provided with at least one communication port 304, and fan governor 301 is provided with at least one signal port 305.Selector switch 303 connects fan governor 301 and fan apparatus 302 respectively, selector switch 303 is provided with control port 306, be used for the control signal that receives according to control port 306, from those communication port 304, select at least one communication port 304 to set up and the communicating by letter of the signal port 305 of fan governor 301.Control signal can be sent by GPIO (general basic input and output) end, and this GPIO end can directly be connected on the fan governor 301, also can be on other device of the system of being connected.
See also Fig. 4, it is the theory structure synoptic diagram of second kind of fan control circuitry of the present utility model.The part communication port 307 of fan apparatus 302 is connected directly on the signal port 305 of fan governor 301 in the fan control circuitry 400, and part communication port 304 is connected to the signal port 305 of fan governor 301 by selector switch 303.
See also Fig. 5, it is the exemplifying embodiment figure of the utility model fan control circuitry.Fan control circuitry comprises fan governor 501, fan apparatus 502 and selector switch 503.In the present embodiment, this signal port 505 is the FANTACH signal input port, and this communication port 504 is the FANTACH signal output port.Now adopt the fan governor of Baseboard Management Controller chip (BMC) can provide 8 ports for fan rotating speed signals (FANTACH), when if fan apparatus 502 is provided with 12 FANTACH signal output ports, 4 FANTACH signal output ports directly can be connected 4 FANTACH signal input ports, all the other 8 FANTACH signal output ports are connected to other 4FANTACH signal input port by selector switch 503.Selector switch 503 comprises 4 alternative change-over switches 506, one end of each alternative change-over switch 506 connects a FANTACH signal input port of fan governor 501, the other end optionally connects two these communication port, i.e. two FANTACH signal output ports, be used for according to the control signal that receives, switch one of them foundation of these two FANTACH signal output ports of selection and communicating by letter of this FANTACH signal input port.
This alternative change-over switch 506 comprises first triode 507 and second triode 508, and described circuit also comprises general input and output GPIO end and in order to the reversing device 509 of control signal negate that the GPIO end is sent.Reversing device 509 can be that reverser, triode etc. can be realized the device with the signal negate.This first triode 507 comprises first base stage, first current collection/emitter, second current collection/emitter, the general input/output terminal GPIO of the first base stage connected system, first current collection/emitter connects this FANTACH signal output port, and second current collection/emitter connects this FANTACH signal input port.This second triode 508 comprises second base stage, the 3rd current collection/emitter, the 4th current collection/emitter, second base stage is through the general input/output terminal GPIO of a reversing device 509 connected systems, the 3rd current collection/emitter connects another FANTACH signal output port, and the 4th current collection/emitter connects this FANTACH signal input port.
Because selector switch 503 need enter 8 FANTACH signal alternatives of residue 4 FANTACH input ports of fan governor 501, so one group of reciprocal signal of 503 need of this selector switch gets final product with the signal that elects.Be that fan governor 501 provides one to select signal FAN_TACH_SWITCH_CTRL by general programmable input and output (GPIO) end, this selection signal and negate signal FAN_TACH_SWITCH_CTRL_N thereof just can finish the selection communication of 8 fan FANTACH signals.
With FAN_TACH4 is example, and when the FAN_TACH_SWITCH_CTRL signal was high level, its designature was a low level, and the signal of selection is FAN_TACH4_OUTLET; When the FAN_TACH_SWITCH_CTRL signal was low level, its designature was a high level, and the signal of selection is FAN_TACH4_INLET.Other 3 pairs of signals are same so to be selected.Therefore, system has just finished the transmission of totally 12 FANTACH signals like this.
Present embodiment has been introduced by a selection signal, respectively 4 pairs of signals has been carried out the function of alternative.And technology contents disclosed in the utility model is not limited thereto, and also can adopt various multinomial selector switchs to realize wider selective communication by the control signal that GPIO provides.More than disclosed only be several specific embodiment of the present utility model, but the utility model is not limited thereto, any those skilled in the art can think variation, all should drop in the protection domain of the present utility model.
Claims (8)
1, a kind of fan control circuitry, comprise a fan governor and several fan apparatus, each fan apparatus is provided with at least one communication port, this fan governor is provided with at least one signal port, it is characterized in that: this fan control circuitry also comprises a selector switch, this selector switch connects this fan governor and fan apparatus respectively, is used for according to the control signal that receives, selects at least one communication port to set up and the communicating by letter of the signal port of this fan governor from those communication port.
2, fan control circuitry as claimed in claim 1 is characterized in that, the part communication port of those fan apparatus directly is connected with those signal ports.
3, fan control circuitry as claimed in claim 1 or 2, it is characterized in that, described selector switch comprises several alternative change-over switches, each alternative change-over switch one end connects a signal port of this fan governor, the other end optionally connects two these communication port, be used for according to this control signal that receives, one of them foundation in these two communication port of switching selection is communicated by letter with this signal port.
4, fan control circuitry as claimed in claim 3, it is characterized in that, described alternative change-over switch comprises first triode and second triode, described circuit also comprises a general input and output GPIO end and is used for the control signal that general input and output GPIO end sends is carried out the reversing device of reverse process
This first triode comprises first base stage, first current collection/emitter, second current collection/emitter, the general input/output terminal GPIO of this of the first base stage connected system, first current collection/emitter connects this communication port, and second current collection/emitter connects this signal port
This second triode comprises second base stage, the 3rd current collection/emitter, the 4th current collection/emitter, second base stage is through the general input/output terminal GPIO of this reversing device connected system, the 3rd current collection/emitter connects another this communication port, and the 4th current collection/emitter connects this signal port.
5, fan control circuitry as claimed in claim 4 is characterized in that, this general input/output terminal GPIO is connected directly to this fan governor.
6, fan control circuitry as claimed in claim 5 is characterized in that, this signal port is the FANTACH signal input port, and this communication port is the FANTACH signal output port.
7, fan control circuitry as claimed in claim 6, it is characterized in that, this fan apparatus is provided with 12 FANTACH signal output ports, and this fan governor only is provided with 8 FANTACH signal input ports, 4 FANTACH signal output ports directly connect 4 FANTACH signal input ports, and all the other 8 FANTACH signal output ports are connected to other 4 FANTACH signal input ports by this selector switch.
8, fan control circuitry as claimed in claim 1 is characterized in that, this selector switch is a MUX.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200773289U CN201134027Y (en) | 2007-12-26 | 2007-12-26 | Fan control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200773289U CN201134027Y (en) | 2007-12-26 | 2007-12-26 | Fan control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201134027Y true CN201134027Y (en) | 2008-10-15 |
Family
ID=40062294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200773289U Expired - Fee Related CN201134027Y (en) | 2007-12-26 | 2007-12-26 | Fan control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201134027Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102334082A (en) * | 2009-02-27 | 2012-01-25 | 扎尔曼技术株式会社 | Apparatus for controlling fan revolution speed |
| CN104533824A (en) * | 2015-01-07 | 2015-04-22 | 山东科技大学 | Standard henhouse multi-way draught fan state distributed wireless and automatic monitoring system |
| EP3525065A1 (en) * | 2018-02-13 | 2019-08-14 | Quanta Computer Inc. | Management of multiple fan modules |
-
2007
- 2007-12-26 CN CNU2007200773289U patent/CN201134027Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102334082A (en) * | 2009-02-27 | 2012-01-25 | 扎尔曼技术株式会社 | Apparatus for controlling fan revolution speed |
| CN104533824A (en) * | 2015-01-07 | 2015-04-22 | 山东科技大学 | Standard henhouse multi-way draught fan state distributed wireless and automatic monitoring system |
| EP3525065A1 (en) * | 2018-02-13 | 2019-08-14 | Quanta Computer Inc. | Management of multiple fan modules |
| US10533563B2 (en) | 2018-02-13 | 2020-01-14 | Quanta Computer Inc. | Management of multiple fan modules |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081015 Termination date: 20121226 |