CN104579094A - Motor drive loop - Google Patents
Motor drive loop Download PDFInfo
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- CN104579094A CN104579094A CN201310475775.XA CN201310475775A CN104579094A CN 104579094 A CN104579094 A CN 104579094A CN 201310475775 A CN201310475775 A CN 201310475775A CN 104579094 A CN104579094 A CN 104579094A
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Abstract
The invention discloses a motor drive loop which is used for driving a single motor system to ensure that the single motor system can be suitable for a system designed by adopting a plurality of motors. The motor drive loop comprises a drive unit and a signal integrating unit, wherein the drive unit is coupled to a rotating speed control signal generating unit to receive a rotating speed control signal, the drive unit drives one motor to operate according to the rotating speed control signal; the signal integrating unit is coupled to the drive unit, and comprises a memory unit and an arithmetic unit which are mutually coupled, rotating speed information, respectively corresponding to different rotating speed control signals, of the plurality of motors is stored in the memory unit, the arithmetic unit is used for rotating speed values, respectively corresponding to rotating speed control signals received by the drive unit, of the plurality of motors according to the rotating speed control signals received by the drive unit and the rotating speed information in the memory unit so as to generate a plurality of motor rotating speed analog signals.
Description
Technical field
The invention relates to a kind of motor driving loop, especially a kind of in order to drive single motor to operate and to produce the motor driving loop of several rotating speed analog signal.
Background technology
Please refer to shown in Fig. 1 and 2, is a kind of existing double motor fan F
t, can be applied to host computer, work station, electromechanical box, network communication equipment or other need heat radiation system in the middle of.This double motor fan F
tcomprise one first motor M1 and one second motor M2, this first motor M1 and this second motor M2 drives one first impeller I1 and one second impeller I2 to rotate respectively.Whereby, compare the fan only having single motor, this double motor fan F
tlarger static pressure and air quantity can be produced, to make radiating effect more excellent.
But because different system configuration and computing flow can cause radiating requirements far from each other, many designs adopt this double motor fan F
tcooling system in actual use, do not need to reach this double motor fan F
tradiating efficiency can operate.In the case, this double motor fan F is set if maintain
t, except because this double motor fan F
tbeing furnished with this first motor M1 and this second motor M2 can cause outside equipment cost increases, and the energy that several motor consumes also is helpless to the usefulness of elevator system, increases system operating cost in rain.
In order to solve the problem, please refer to shown in Fig. 3 and 4, is the existing single motor fan F of one, due to the size of this single motor fan F and structure all with this double motor fan F
tsimilar, then there is dealer to propose to replace this double motor fan F with this single motor fan F
t, attempt to reduce system cost.Only, design adopts this double motor fan F
tcooling system operate time, the tach signal of this first motor M1 and this second motor M2 must be received to confirm this double motor fan F
twhether run well.This single motor fan F only has single motor M and operates to drive an impeller I, cannot produce the tach signal of the first motor M1 needed for this cooling system and this second motor M2, accordingly, actually replaces this double motor fan F with this single motor fan F
ttime, this cooling system correctly cannot receive the tach signal of this first motor M1 and this second motor M2, will judge that the operating state of this single motor fan F is abnormal.
Although signal copy as in this area the prior art having and usually know that the knowledgeable all has the knack of, this double motor fan F
tin order to reach the effect promoting static pressure and air quantity; usually can select this first impeller I1 and this second impeller I2 is of different sizes and shape equal-specification; therefore this first motor M1 and this second motor M2 adopts different rotation speed operation; if copy merely the tach signal of this single motor fan F, this cooling system will judge that the rotating speed of this single motor fan F is abnormal.Moreover, if for replacing this double motor fan F with this single motor fan F
t, the rotating speed of the rotating speed M of the motor of this single motor fan F and this first motor M1 or this second motor M2 certainly will difference to some extent, therefore cannot develop all the time on the market and can replace this double motor fan F
tsingle motor fan F product.
In sum, need badly and a kind of motor driving loop is provided, in order to drive single motor operate and produce several rotating speed analog signal, to simulate the tach signal of each motor of a plural motor fan, make this single motor can be applicable to adopt the system of several motors designs.
Summary of the invention
An object of the present invention is to provide a kind of motor driving loop, utilize drive unit drives one motor running, and produce several motor rotary speed analog signal with a signal integration loop according to the speed controling signal that this driver element receives, in order to simulate the tach signal of each motor of a plural motor fan, make the single motor fan adopting this motor can replace this plural motor fan by motor driving loop of the present invention, there is the effect making single motor system be applicable to the system of adopting plural motors designs.
Another object of the present invention is to provide a kind of motor driving loop, by the tachometer value of this signal integration loop according to the motor of this single motor fan, the equivalent tachometer value calculating each fan producing this this plural motor fan is using as this several motor rotary speed analog signal, make to adopt the control system of this plural motor fan can carry out adjustment of rotational speed according to this several motor rotary speed analog signal to this motor, to confirm whether this single motor fan reaches a desired speed, when therefore utilizing motor driving loop of the present invention to replace the system of plural motors designs with single motor system, there is the effect keeping monitor speed function.
For reaching aforementioned invention object, the technological means that the present invention uses includes:
A kind of motor driving loop, comprise: a driver element, be coupled to a speed controling signal generation unit to receive a speed controling signal, this driver element drives a motor running according to this speed controling signal; And a signal integration unit is coupled to this driver element, this signal integration unit comprises the mnemon and an arithmetic element that mutually couple, the rotating speed data of several motor speed controling signal corresponding different is respectively stored in this mnemon, rotating speed data in the speed controling signal that this arithmetic element receives according to this driver element and this mnemon, calculate this several motor respectively to should the tachometer value of speed controling signal that receives of driver element, to produce several motor rotary speed analog signal.
Motor driving loop as above, wherein, this speed controling signal generation unit is electrically connected a control system for reception rotating speed of target signal, and this rotating speed of target signal is converted to this fast control signal, this signal integration unit is electrically connected this control system, in order to export this several motor rotary speed analog signal to this control system.
Motor driving loop as above, wherein, this driver element comprises a pulse width modulation drive circuit, this speed controling signal generation unit comprises a pulse width modulation signal modulation circuit, in order to carry out pulse width modulation to this rotating speed of target signal, this rotating speed of target signal is converted to this speed controling signal and exports this driver element to.
Motor driving loop as above, wherein, this speed controling signal has a duty ratio (Duty Cycle), and the rotating speed data stored by this mnemon is the tachometer value that this several motor correspondence has the speed controling signal of different duty.
Motor driving loop as above, wherein, this several motor comprises first motor and second motor, this several motor rotary speed analog signal comprises a first motor rotary speed analog signal and a second motor rotary speed analog signal, this arithmetic element calculates the duty ratio of the speed controling signal that this driver element receives, and by capturing this rotating speed data in this mnemon, using calculate produce this first motor to should the tachometer value of duty ratio as this first motor rotary speed analog signal, and this second motor to should the tachometer value of duty ratio as this second motor rotary speed analog signal.
Motor driving loop as above, wherein, the motor that this driver element drives is the motor of a single motor fan, this first motor and this second motor are the motor of a plural motor fan, when this single motor fan is arranged at this control system, this signal integration unit exports this first motor rotary speed analog signal and this second motor rotary speed analog signal to this control system to simulate the tach signal of this first motor and this second motor respectively.
A kind of motor driving loop, comprise: a driver element, be coupled to a speed controling signal generation unit to receive a speed controling signal, this driver element drives a motor running according to this speed controling signal, a speed calculation unit, is coupled to motor that this driver element drives to receive a tach signal, and calculates the tachometer value producing this motor according to this tach signal, and a signal integration unit is coupled to this driver element, this signal integration unit comprises the mnemon and an arithmetic element that mutually couple, several motor is stored when being equivalent to the tachometer value of the motor that this driver element drives respectively in this mnemon, the conversion information of the tachometer value of the motor that this several motor other equivalent tachometer value each and this driver element drive, the tachometer value of the motor that this driver element drives according to the conversion information in this mnemon by this arithmetic element is scaled the equivalent tachometer value of this several motor respectively, to produce several motor rotary speed analog signal.
Motor driving loop as above, wherein, this speed controling signal generation unit is electrically connected a control system for reception rotating speed of target signal, and this rotating speed of target signal is converted to this fast control signal, this signal integration unit is electrically connected this control system, in order to export this several motor rotary speed analog signal to this control system.
Motor driving loop as above, wherein, this driver element comprises a pulse width modulation drive circuit, this speed controling signal generation unit comprises a pulse width modulation signal modulation circuit, in order to carry out pulse width modulation to this rotating speed of target signal, this rotating speed of target signal is converted to this speed controling signal and exports this driver element to.
Motor driving loop as above, wherein, the motor that this driver element drives is the motor of a single motor fan, this several motor is the motor of a plural motor fan, conversion information stored in this mnemon, for the difference of the wind dispelling power according to this single motor fan and this plural motor fan, be scaled the function needed for equivalent tachometer value of each motor difference correspondence of this plural motor fan with the tachometer value of the motor driven by this driver element.
Motor driving loop as above, wherein, this several motor comprises first motor and second motor, this several motor rotary speed analog signal comprises a first motor rotary speed analog signal and a second motor rotary speed analog signal, this arithmetic element captures this conversion information by this mnemon, this first motor is produced to should the equivalent tachometer value of the tachometer value of motor that drives of driver element to calculate, using as this first motor rotary speed analog signal, and calculate and produce this second motor to should the equivalent tachometer value of the tachometer value of motor that drives of driver element, using as this second motor rotary speed analog signal.
Motor driving loop as above, wherein, when this single motor fan is arranged at this control system, this signal integration unit exports this first motor rotary speed analog signal and this second motor rotary speed analog signal is interrogated to this control system with the rotating speed of simulating this first motor and this second motor respectively.
Accompanying drawing explanation
Fig. 1 is a kind of outside drawing of existing double motor fan.
Fig. 2 is a kind of cutaway view of existing double motor fan.
Fig. 3 is a kind of outside drawing of existing single motor fan.
Fig. 4 is a kind of cutaway view of existing single motor fan.
Fig. 5 is the circuit framework figure of the present invention first preferred embodiment.
Fig. 6 is the internal circuit Organization Chart of the signal integration unit of the present invention first preferred embodiment.
Fig. 7 is the circuit framework figure of the present invention second preferred embodiment.。
Wherein:
1 motor driving loop 1 ' motor driving loop
11 driver element 12 speed controling signal generation units
13 signal integration unit 131 mnemons
132 arithmetic element 14 speed calculation unit
B control system ω C speed controling signal
ω rotating speed analog signal ω 1 first motor rotary speed analog signal
ω 2 second motor rotary speed analog signal
(existing)
Ft double motor fan F1 first fan
M1 first motor I1 first impeller
F2 second fan M2 second motor
The mono-motor fan of I2 second impeller F
M motor I impeller.
Embodiment
For above-mentioned and other object, feature and advantage of the present invention can be become apparent, preferred embodiment of the present invention cited below particularly, and coordinate accompanying drawing, be described in detail below:
" coupling " (coupling) described in the present invention in full, refer between two devices by modes such as wired entities, wireless medium or its combinations (such as: heterogeneous networking), making this two devices mutually can transmit data, is that persond having ordinary knowledge in the technical field of the present invention is appreciated that.
Please refer to shown in Fig. 5, it is the motor driving loop 1 of the present invention first preferred embodiment, this motor driving loop 1 comprises driver element 11, speed controling signal generation unit 12 and a signal integration unit 13, and this driver element 11 couples this speed controling signal generation unit 12 and this signal integration unit 13 respectively.
Wherein, this driver element 11 is electric connection one motor M, and this driver element 11 is electrically connected the motor coil of this motor M usually, and this motor coil can be selected from single phase winding, two-phase coil or three-phase coil etc.This driver element 11 can receive a speed controling signal ω by this speed controling signal generation unit 12
c, and according to this speed controling signal ω
cadjust the cycle that the motor coil alternation of this motor M is excitatory, and then control the rotating speed of this motor M; This speed controling signal generation unit 12 can be electrically connected a control system B, this control system B can be basic input output system (the Basic Input/Output System of existing host computer or work station, BIOS), the control panel (control panel) of electromechanical box or network communication equipment or the controller etc. of other existing cooling system, the present invention is not limited.When this control system B wish adjusts the rotating speed of this motor M, a rotating speed of target signal will be sent to this speed controling signal generation unit 12, only this rotating speed of target signal is not common to all motor models, therefore can utilize this speed controling signal generation unit 12 that this rotating speed of target signal is converted to above-mentioned speed controling signal ω
c, and export this driver element 11 to.
This driver element 11 need design according to the method for controlling number of revolution of this motor M, for example, current commercially available fan extensively adopts pulse width modulation (Pulse Width Modulation, PWM) technology controls rotating speed, therefore this driver element 11 can comprise a pulse width modulation drive circuit, as namely TaiWan, China patent announcement No. I340534 " PWM motor drive circuit " Patent Case disclose a kind of existing pulse width modulation drive circuit, this driver element 11 can be used as.Relatively, this speed controling signal generation unit 12 can comprise a pulse width modulation signal modulation circuit, rotating speed of target signal in order to send this control system B carries out pulse width modulation, so that this rotating speed of target signal is converted to this speed controling signal ω
cand export this driver element 11 to, make this driver element 11 can control the rotating speed of this motor M according to this.In more detail, the rotating speed of target signal that this control system B sends can for single magnitude of voltage, and this speed controling signal generation unit 12 performs pulse width modulation according to this rotating speed of target signal and produces a square wave voltage signal, using as this speed controling signal ω
c, this speed controling signal has a duty ratio (DutyCycle), and this duty ratio is that this square wave voltage signal is in the time of high potential and full-time ratio in single cycle, determined by the magnitude of voltage of this rotating speed of target signal.
According to aforementioned techniques concept, the rotating speed of this motor M is controlled for persond having ordinary knowledge in the technical field of the present invention's all light intelligible prior aries of energy by pulse width modulation, therefore in order to form the pulse width modulation drive circuit of this driver element 11 and the pulse width modulation signal modulation circuit in order to form this speed controling signal generation unit 12 has multiple different existing design respectively, those skilled in the art can freely select enforcement according to the actual requirements, and the present invention is not as limit.Moreover, the method for controlling number of revolution of this motor M also can be Linear Control or other existing rotating speed control technology, therefore driver element 11 of the present invention is not limited to the circuit framework possessing pulse width modulation, suitable circuit can be selected according to the method for controlling number of revolution of this motor M, and this speed controling signal generation unit 12 coordinates this driver element 11 to design, the rotating speed of target signal in order to be sent by this control system B is converted to the speed controling signal ω being applicable to this driver element 11
c.
Please continue with reference to shown in Fig. 5, this signal integration unit 13 is coupled to this driver element 11, the speed controling signal ω that can receive according to this driver element 11
cto produce several motor rotary speed analog signal ω, in addition, this signal integration unit 13 can be electrically connected this control system B, to export this several motor rotary speed analog signal ω.For example, if user is in the middle of this control system B, the existing double motor fan F shown in Fig. 1 is replaced with the existing single motor fan F shown in Fig. 3
t, owing to using this double motor fan F
ttime, this control system B must receive the tach signal of this first motor M1 and this second motor M2 to confirm this double motor fan F
twhether run well, when therefore this single motor fan F being applied to this control system B, though the motor driving loop 1 of this first preferred embodiment only couples single motor M (the motor M of this single motor fan F), but this signal integration unit 13 must produce two motor rotary speed analog signal ω, simulate this double motor fan F respectively
tthe first motor M1 and the tach signal of this second motor M2, otherwise this control system B will judge that the operating state of this single motor fan F is abnormal.Wherein, if this driver element 11 adopts this double motor fan of above-mentioned pulse-width modulation technical controlling F
ttachometer value, then this double motor fan F
tthe first motor M1 and the rotating speed of this second motor M2 to should speed controling signal ω
cduty ratio relation through actual measurement as shown in following table one:
Table one
Shown in Fig. 6, this signal integration unit 13 can comprise mnemon 131 and the arithmetic element 132 mutually coupled, this mnemon 131 can make carbon copies read-only memory (electrically-erasable programmableroad-only memory by flash memory (flash memory), the electronics formula of erasing, EEPROM) or the non-volatility memorizer (nonvolatile memory) such as read-only memory (read-only memory) form, in order to store this double motor fan F
tthe first motor M1 and the respectively corresponding different speed controling signal ω of this second motor M2
crotating speed data (as above table one), this arithmetic element 132 is existing computing circuit, is coupled to this driver element 11 to receive this speed controling signal ω
c, calculate this speed controling signal ω according to this
cduty ratio, and by the data of the upper table one of acquisition in this mnemon 131, find out this double motor fan F to utilize contrast or interpolation method respectively
tthe first motor M1 and the second motor M2 to should the tachometer value of duty ratio.This signal integration unit 13 then using this first motor M1 to should the tachometer value of duty ratio as one first motor rotary speed analog signal ω
1, using this second motor M2 to should the tachometer value of duty ratio as one second motor rotary speed analog signal ω
2.Such as: if this speed controling signal generation unit 12 exports the speed controling signal ω of this driver element 11 to
c, it is 50% that the arithmetic element 132 via this signal integration unit 13 calculates its duty ratio, then this arithmetic element 132 is according to the data of table one upper in this mnemon 131, respectively " 13515 " and " 9820 " is set to this first motor rotary speed analog signal ω
1and this second motor rotary speed analog signal ω
2.
This signal integration unit 13 is by produced this first motor rotary speed analog signal ω
1and this second motor rotary speed analog signal ω
2export this control system B respectively to.Whereby, this first motor rotary speed analog signal ω
1and this second motor rotary speed analog signal ω
2this double motor fan F can be simulated respectively
tthe first motor M1 and the tach signal of this second motor M2, this control system B is judged, and this single motor fan F runs well, to enable this single motor fan F replace this double motor fan F
tbe applied on this control system B.
Wherein, the mnemon 131 of this signal integration unit 13 can for only coupling the element of this arithmetic element 132, specialize in this arithmetic element 132 and capture data, such as: when this arithmetic element 132 is an existing computing circuit, this mnemon 131 can make carbon copies read-only memory for the one piece of electronics formula of erasing be integrated in the middle of this computing circuit.But, this mnemon 131 also can couple this arithmetic element 132 and other arithmetic unit simultaneously, and this mnemon 131 can be positioned at this signal integration unit 13 outside, for example, when this control system B is described BIOS system, be comprise at least one entity memory (physical memory) to store the data needed for this BIOS system, arbitrary entity memory all can be used as this mnemon 131.By in advance by the data of upper table one write software formula be stored in be positioned at this control system B mnemon 131 in the middle of, calculate this speed controling signal ω when this arithmetic element 132 completes
cduty ratio after, still by the data of the upper table one of acquisition in the mnemon 131 in this control system B, this double motor fan F can be found out to utilize contrast or interpolation method respectively
tthe first motor M1 and the second motor M2 to should the tachometer value of duty ratio, and then produce this first and second motor rotary speed analog signal ω
1, ω
2.
In addition, whether the better operating state via this driver element 11 of this signal integration unit 13 is correct to judge the motor rotary speed analog signal ω calculated, to determine whether normally to export this several motor rotary speed analog signal ω.In detail, this signal integration unit 13 can judge the operating state of this driver element 11 according to the parameter such as current sinking or operating voltage by this driver element 11, such as: when the current sinking of this driver element 11 is zero, this motor M may damage, therefore this signal integration unit 13 will judge that the operating state of this driver element 11 is abnormal, even if the speed controling signal ω received according to this driver element 11
cstill several motor rotary speed analog signal ω can be produced, this signal integration unit 13 can be selected not export this several motor rotary speed analog signal ω to this control system B, or send information warning, with the operating configuration reminding user to note this motor M by existing alarming device such as warning cresset or buzzer etc.
It should be noted that in the middle of the motor driving loop 1 of above-mentioned first preferred embodiment, several motor rotary speed analog signal ω that this signal integration unit 13 produces are only according to the speed controling signal ω that this driver element 11 receives
csetting, do not consider the actual speed of this single motor fan F, therefore this control system B cannot carry out adjustment of rotational speed according to the actual speed of this single motor fan F.In order to improve this shortcoming, please refer to shown in Fig. 7, it is the motor driving loop 1 ' of the present invention second preferred embodiment, be with the different part of aforementioned first preferred embodiment: this motor driving loop 1 ' separately comprises a speed calculation unit 14, this speed calculation unit 14 is existing computing circuit, be coupled to a rotating speed detector S of this motor M, this rotating speed detector S can be the existing rotating speed sensing element such as hall sensing element (Hall sensor) or encoder (encoder), in order to sense the actual speed of this motor M and to produce a tach signal, this speed calculation unit 14 receives this tach signal and calculates the tachometer value producing this motor M according to this.This speed calculation unit 14 separately couples this signal integration unit 13, to export the tachometer value of this motor M to this arithmetic element 132.
Accordingly, this signal integration unit 13 can calculate according to the tachometer value of this motor M and produce the several motor rotary speed analog signal ω of this generation.For example, if same for replacing this double motor fan F with this single motor fan F
tbe applied in the middle of this control system B, then the arithmetic element 132 of this signal integration unit 13 is by the tachometer value of the motor M according to this single motor fan F, converses this double motor fan F
tthe first motor M1 and under the second motor M2 is equivalent to the tachometer value of this motor M respectively, the equivalent tachometer value of this first motor M1 and the second motor M2, wherein, the conversion information of the equivalent tachometer value of the tachometer value of this motor M and this first motor M1 and this second motor M2, can be stored in this mnemon 131, carry out capturing and computing for this arithmetic element 132.The corresponding relation of the tachometer value of this motor M and the equivalent tachometer value of this first motor M1 is as shown in following table two:
Table two
According to this single motor fan F and this double motor fan F
tthe difference of wind dispelling power, be scaled this double motor fan F with the tachometer value of the motor M by this single motor fan F
tthe equivalent tachometer value corresponding to the first motor M1, usually know that the knowledgeable all can light intelligible technological concept for having in this area, and via actual measurement this single motor fan F and this double motor fan F
twind dispelling power can be easy to the conversion function obtaining described tachometer value and equivalent tachometer value, do not repeat separately for this reason.This arithmetic element 132 calculate the equivalent tachometer value of the first motor M1 produced and namely can be used as this first motor rotary speed analog signal ω
1in order to export this control system B to simulate the tach signal of this first motor M, such as: if the tachometer value of this motor M is calculated as 〝 11563 〞 via this speed calculation unit 14, then calculating is produced 〝 13413 〞 to be set to this first motor rotary speed analog signal ω by this arithmetic element 132
1.In like manner, this arithmetic element 132 can be scaled according to the tachometer value of this motor M and be equivalent to this double motor fan F
tthe equivalent tachometer value of the second motor M2, and be set to this second motor rotary speed analog signal ω
2.Whereby, due to this first motor rotary speed analog signal ω
1and this second motor rotary speed analog signal ω
2actual speed institute computing according to this motor M draws, therefore this control system B can according to this first motor rotary speed analog signal ω
1and this second motor rotary speed analog signal ω
2adjustment of rotational speed is carried out to this single motor fan F, to confirm whether this single motor fan F reaches a desired speed.
Please continue with reference to shown in table two, the arithmetic element 132 of this signal integration unit 13 still can by this mnemon 131, captures this first motor M1 to should speed controling signal ω
cthe rotating speed that should have, and with this first motor M1 to the equivalent tachometer value of motor M comparing computing, to calculate the error amount between the two, this error amount can for judging to replace this double motor fan F with this single motor fan F
twhether suitable.In other words, if this driver element 11 receives a speed controling signal ω
cto drive this motor M to operate, the equivalent tachometer value of this first motor M1 calculated according to the tachometer value of this motor M is less than this first motor M1 to should speed controling signal ω
cthe rotating speed that should have, and the error amount between the two is more than a predetermined value, the wind dispelling power representing this single motor fan F may be not enough, and this signal integration unit 13 can send warning message by existing alarming device such as warning cresset or buzzer etc. equally, notes relevant situation to remind user.
In sum, motor driving loop 1 of the present invention utilizes a driver element 11 to drive a motor M to operate, and with the speed controling signal ω that a signal integration loop 13 receives according to this driver element 11
cproduce several motor rotary speed analog signal ω, in order to simulate the tach signal of each motor of a plural motor fan.Accordingly, make the single motor fan F adopting this motor M can replace this plural motor fan by motor driving loop 1 of the present invention, there is effect really that make single motor system be applicable to the system of adopting plural motors designs.
The signal integration loop 13 of motor driving loop 1 ' of the present invention is according to the tachometer value of the motor M of this single motor fan F, the equivalent tachometer value calculating each fan producing this this plural motor fan is using as this several motor rotary speed analog signal ω, make to adopt the control system B of this plural motor fan can carry out adjustment of rotational speed according to this several motor rotary speed analog signal ω to this motor M, to confirm whether this single motor fan F reaches a desired speed.Accordingly, when utilizing motor driving loop 1 ' of the present invention to replace the system of plural motors designs with single motor system, there is effect really that keep monitor speed function.
Just above-described, be only preferred embodiment of the present invention, when not limiting the scope of the present invention with this; Therefore all simple equivalences done according to the present patent application the scope of the claims and creation description change and modify, and all should still remain within the scope of the patent.
Claims (12)
1. a motor driving loop, is characterized in that, comprises:
A driver element, be coupled to a speed controling signal generation unit to receive a speed controling signal, this driver element drives a motor running according to this speed controling signal; And
A signal integration unit is coupled to this driver element, this signal integration unit comprises the mnemon and an arithmetic element that mutually couple, the rotating speed data of several motor speed controling signal corresponding different is respectively stored in this mnemon, rotating speed data in the speed controling signal that this arithmetic element receives according to this driver element and this mnemon, calculate this several motor respectively to should the tachometer value of speed controling signal that receives of driver element, to produce several motor rotary speed analog signal.
2. motor driving loop as claimed in claim 1, it is characterized in that, this speed controling signal generation unit is electrically connected a control system for reception rotating speed of target signal, and this rotating speed of target signal is converted to this fast control signal, this signal integration unit is electrically connected this control system, in order to export this several motor rotary speed analog signal to this control system.
3. motor driving loop as claimed in claim 2, it is characterized in that, this driver element comprises a pulse width modulation drive circuit, this speed controling signal generation unit comprises a pulse width modulation signal modulation circuit, in order to carry out pulse width modulation to this rotating speed of target signal, this rotating speed of target signal is converted to this speed controling signal and exports this driver element to.
4. motor driving loop as claimed in claim 3, it is characterized in that, this speed controling signal has a duty ratio, and the rotating speed data stored by this mnemon is the tachometer value that this several motor correspondence has the speed controling signal of different duty.
5. motor driving loop as claimed in claim 4, it is characterized in that, this several motor comprises first motor and second motor, this several motor rotary speed analog signal comprises a first motor rotary speed analog signal and a second motor rotary speed analog signal, this arithmetic element calculates the duty ratio of the speed controling signal that this driver element receives, and by capturing this rotating speed data in this mnemon, using calculate produce this first motor to should the tachometer value of duty ratio as this first motor rotary speed analog signal, and this second motor to should the tachometer value of duty ratio as this second motor rotary speed analog signal.
6. motor driving loop as claimed in claim 5, it is characterized in that, the motor that this driver element drives is the motor of a single motor fan, this first motor and this second motor are the motor of a plural motor fan, when this single motor fan is arranged at this control system, this signal integration unit exports this first motor rotary speed analog signal and this second motor rotary speed analog signal to this control system to simulate the tach signal of this first motor and this second motor respectively.
7. a motor driving loop, is characterized in that, comprises:
A driver element, be coupled to a speed controling signal generation unit to receive a speed controling signal, this driver element drives a motor running according to this speed controling signal;
A speed calculation unit, is coupled to motor that this driver element drives to receive a tach signal, and calculates the tachometer value producing this motor according to this tach signal; And
A signal integration unit is coupled to this driver element, this signal integration unit comprises the mnemon and an arithmetic element that mutually couple, several motor is stored when being equivalent to the tachometer value of the motor that this driver element drives respectively in this mnemon, the conversion information of the tachometer value of the motor that this several motor other equivalent tachometer value each and this driver element drive, the tachometer value of the motor that this driver element drives according to the conversion information in this mnemon by this arithmetic element is scaled the equivalent tachometer value of this several motor respectively, to produce several motor rotary speed analog signal.
8. motor driving loop as claimed in claim 7, it is characterized in that, this speed controling signal generation unit is electrically connected a control system for reception rotating speed of target signal, and this rotating speed of target signal is converted to this fast control signal, this signal integration unit is electrically connected this control system, in order to export this several motor rotary speed analog signal to this control system.
9. motor driving loop as claimed in claim 8, it is characterized in that, this driver element comprises a pulse width modulation drive circuit, this speed controling signal generation unit comprises a pulse width modulation signal modulation circuit, in order to carry out pulse width modulation to this rotating speed of target signal, this rotating speed of target signal is converted to this speed controling signal and exports this driver element to.
10. motor driving loop as claimed in claim 8 or 9, it is characterized in that, the motor that this driver element drives is the motor of a single motor fan, this several motor is the motor of a plural motor fan, conversion information stored in this mnemon, for the difference of the wind dispelling power according to this single motor fan and this plural motor fan, be scaled the function needed for equivalent tachometer value of each motor difference correspondence of this plural motor fan with the tachometer value of the motor driven by this driver element.
11. motor driving loop as claimed in claim 10, it is characterized in that, this several motor comprises first motor and second motor, this several motor rotary speed analog signal comprises a first motor rotary speed analog signal and a second motor rotary speed analog signal, this arithmetic element captures this conversion information by this mnemon, this first motor is produced to should the equivalent tachometer value of the tachometer value of motor that drives of driver element to calculate, using as this first motor rotary speed analog signal, and calculate and produce this second motor to should the equivalent tachometer value of the tachometer value of motor that drives of driver element, using as this second motor rotary speed analog signal.
12. motor driving loop as claimed in claim 11, it is characterized in that, when this single motor fan is arranged at this control system, this signal integration unit exports this first motor rotary speed analog signal and this second motor rotary speed analog signal to this control system to simulate the tach signal of this first motor and this second motor respectively.
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| CN201310475775.XA CN104579094B (en) | 2013-10-12 | 2013-10-12 | Motor drive loop |
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| CN201310475775.XA CN104579094B (en) | 2013-10-12 | 2013-10-12 | Motor drive loop |
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| CN104579094B CN104579094B (en) | 2017-05-10 |
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| CN105429554A (en) * | 2015-12-15 | 2016-03-23 | 大连理工大学 | Control method of switched reluctance driving system for pumping unit |
| CN106695688A (en) * | 2015-11-13 | 2017-05-24 | 丰民金属工业股份有限公司 | Torsion control device and method of electric impact type tool |
| CN107018329A (en) * | 2017-04-13 | 2017-08-04 | 小绿草股份有限公司 | Lapse photography system and method |
| CN108964574A (en) * | 2017-05-26 | 2018-12-07 | 茂达电子股份有限公司 | Motor control system and motor control method |
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| TW201218611A (en) * | 2010-06-16 | 2012-05-01 | Eaton Corp | System and method of speed detection in an AC induction machine |
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| US5847526A (en) * | 1996-04-24 | 1998-12-08 | Lasko; William E. | Microprocessor controlled fan |
| CN101051804A (en) * | 2006-04-06 | 2007-10-10 | 台达电子工业股份有限公司 | Motor control device and its setting method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106695688A (en) * | 2015-11-13 | 2017-05-24 | 丰民金属工业股份有限公司 | Torsion control device and method of electric impact type tool |
| CN106695688B (en) * | 2015-11-13 | 2019-03-15 | 丰民金属工业股份有限公司 | The torque controlling device and its method of electric impact-type tool |
| CN105429554A (en) * | 2015-12-15 | 2016-03-23 | 大连理工大学 | Control method of switched reluctance driving system for pumping unit |
| CN105429554B (en) * | 2015-12-15 | 2017-08-22 | 大连理工大学 | A kind of control method of switch magnetic resistance driving system used for oil extractor |
| CN107018329A (en) * | 2017-04-13 | 2017-08-04 | 小绿草股份有限公司 | Lapse photography system and method |
| CN108964574A (en) * | 2017-05-26 | 2018-12-07 | 茂达电子股份有限公司 | Motor control system and motor control method |
| TWI671994B (en) * | 2017-05-26 | 2019-09-11 | 茂達電子股份有限公司 | Motor control system and motor control method |
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