CN106870426A - Fan motor powers off the circuit of brake automatically - Google Patents
Fan motor powers off the circuit of brake automatically Download PDFInfo
- Publication number
- CN106870426A CN106870426A CN201611219607.4A CN201611219607A CN106870426A CN 106870426 A CN106870426 A CN 106870426A CN 201611219607 A CN201611219607 A CN 201611219607A CN 106870426 A CN106870426 A CN 106870426A
- Authority
- CN
- China
- Prior art keywords
- electrically connected
- switch module
- resistor
- upper arm
- circuit
- 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.)
- Granted
Links
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Stopping Of Electric Motors (AREA)
Abstract
The present invention powers off the circuit of brake automatically for a kind of fan motor, including an energy-storage units, one motor drive circuit, the resistance unit of one control unit and one input power of connection, the energy-storage units are electrically connected with the motor drive circuit, it is used to receive and store an operating voltage, the motor drive circuit has on plural number, underarm switch module and one first, two driver elements, the control unit be electrically connected with the relative underarm switch module with this first, two driver elements, the operating voltage is provided through energy-storage units when powering off to be turned on to the upper arm switch module, the upper arm switch module is made to form a loop with the motor coil and brake.
Description
【Technical field】
The present invention is related to the circuit that a kind of fan motor powers off brake automatically, espespecially a kind of fan with automatic braking function
Motor powers off the circuit of brake automatically.
【Background technology】
In recent years, combine electronic power switch using numerical digit microcontroller (Micro-Controller Unit, MCU) and drive electricity
Road, carries out the design of electronic product, has been the conventional technology of current industry.However, when the electronic product is operated, the numerical digit is micro-
Controller and the electronic power switch can be because operation cause the electronic product to produce amount of heat in high frequency；Therefore, the electricity
The radiating requirements of sub- product will be as considerable design problem.
At present, more typical radiating mode is radiated with the wind dispelling that the operating of fan system carries out the electronic product, but base
In considering for fan control and user's safety operation, the fan system would generally combine a brake circuit, so as to disconnected in power supply
When electric, stop the operating of the fan system, to ensure the accuracy of fan control and the safe operation of user.
Refering to shown in Fig. 1, commonly known fan brake circuit 1 includes bridge driver 11, the brake electricity of a controller 13,
The motor coil L of road 14 and, an input power Vin be connected to the bridge driver 11, controller 13 and the brake circuit 14 with
Needed for providing the power supply of the above-mentioned component, and the bridge driver 11 is by arm switch M1, M2 and two times arm switch M3, M4 institutes on two
Constitute, so being the control through the brake circuit 14 when fan is powered off, reached with carrying out the instant operation for shutting down
The effect of brake.But due to being needed the controller 13 couples of two times arm switches M3, M4 in known fan brake circuit 1 to do pulse wide
Degree modulating signal (PULSE WIDTH MODULATION；PWM) cut-sytle pollination, is changed to arm switch M1, M2 on controller 13 pairs two
To do pulse width modulation signal cut-sytle pollination, but arm switch M1, M2 on two can be made to increase with control resistance temperature, so must
Must must increase electronic component (such as resistor) and solve the problems, such as said temperature rising processing, and two times arm switches M3, M4 be with
The brake circuit 14 is mutually electrically connected with, and because of the setting of the brake circuit 14, and cost will certainly be caused to increase and increase circuit
Connection complexity.
【The content of the invention】
Therefore, it is effectively to solve one of above-mentioned problem, present invention purpose to make circuit band in a kind of resistance unit that passes through of offer
There is braking function, and an operating voltage is provided when powering off by an energy-storage units and opened to the plural upper arm of a motor drive circuit
Component is closed, the fan motor for making the upper arm switch module and a motor coil form a loop and reach the effect of brake breaks
The circuit of electric brake automatically.
Another object of the present invention is providing a kind of electricity for having and reaching cost-effective fan motor power-off brake automatically
Road.
It is that, up to above-mentioned purpose, the present invention powers off the circuit of brake automatically, including an energy storage list a kind of fan motor is provided
Unit, a motor drive circuit, a control unit and a resistance unit, the energy-storage units are received and store an operating voltage, the horse
Have plural upper arm switch module, plural underarm switch module, one first driver element and one second driving single up to drive circuit
Unit a, first end of the upper arm switch module is electrically connected with the energy-storage units and receives the operating voltage, the end of one second difference
Mutually it is electrically connected with a first end and the motor coil of the relative underarm switch module, one second end of the underarm switch module
An earth terminal is then connected to, and a first end of first and second driver element is electrically connected with the relative upper arm switch module
One the 3rd end, and control unit is electrically connected with one the 3rd end and the one of first and second driver element of the relative lower arm switch
Second end, and one end of the resistance unit is electrically connected with an input power, its other end is electrically connected with relative first and second driving
One the 3rd end and the second end of the underarm switch module of unit, wherein when the fan is powered off, the upper arm switch module is received
Turned on to the operating voltage of energy-storage units offer, the underarm switch module is not turned on without the operating voltage is received,
Make the upper arm switch module and the motor coil form a loop and reach the effect of brake, and also effectively reach and save into
This effect.
Implement one, the upper arm switch module has one first upper arm switch module and one second upper arm switch module, should
The first end of first and second upper arm switch member is mutually electrically connected with the energy-storage units, and the other end connection of the energy-storage units should
Earth terminal, second end of the first and second upper arm switch module is electrically connected with the two ends of the relative motor coil, and this
First, the 3rd end of two upper arm switch modules is electrically connected with the first end of relative first and second driver element.
Implement one, the underarm switch module has one first underarm switch module and one second underarm switch module, should
The first end of first and second underarm switch module is electrically connected with the two ends of the relative motor coil, and first and second underarm is opened
The second end for closing component is respectively and electrically connected to the earth terminal, and the 3rd end of the first and second underarm switch module electrically connects respectively
Connect the relative control unit.
Implement one, the resistance unit is a resistor, one end of the resistance unit is electrically connected with the input power, the electricity
Hinder the other end and relative first and second driver element of unit the 3rd end and the first and second underarm switch module second
End is mutually electrically connected with.
Implement one, the control unit is a central processing unit or a microcontroller.
Implement one, first driver element includes one first electric crystal, a first resistor device, a second resistance device, one
3rd resistor device, one the 4th resistor and one first capacitor, first electric crystal have a base stage, an emitter-base bandgap grading and a collector,
The collector is electrically connected with one end of the second resistance device, and the emitter-base bandgap grading is electrically connected with one end and earth terminal of the 3rd resistor device,
The other end of the 3rd resistor device is another with one end of first capacitor, one end of the first resistor device and the second resistance device
One end is mutually electrically connected with jointly, and the first resistor device is another with the other end relative resistance unit of connection of the first capacitor
End, one end of the 4th resistor is electrically connected with the base stage, and its other end is electrically connected with the relative control unit.
Implement one, second driver element includes one second electric crystal, one the 5th resistor, one the 6th resistor, one
7th resistor, one the 8th resistor and one second capacitor, second electric crystal have a base stage, an emitter-base bandgap grading and a collector,
The collector of second electric crystal is electrically connected with one end of the 7th resistor, and the emitter-base bandgap grading of second electric crystal is electrically connected with should
One end of 6th resistor and the earth terminal, the other end of the 6th resistor and one end of second capacitor, the 5th electricity
The other end of one end and the 7th resistor for hindering device is mutually electrically connected with jointly, and the 5th resistor is another with the second capacitor
The other end of the relative resistance unit of one end connection, one end of the 8th resistor is electrically connected with the base of second electric crystal
Pole, its other end is electrically connected with the relative control unit.
Implement one, the resistance unit is 0 ohmic resistor.
【Brief description of the drawings】
Fig. 1 is known fan brake circuit circuit diagram；
Fig. 2 is the block schematic diagram of one of present invention embodiment；
Fig. 3 is the circuit diagram of one of present invention embodiment.
Primary symbols explanation：
Fan motor powers off the circuit ... 2 of brake automatically
Energy-storage units ... 21
Motor drive circuit ... 22
First upper arm switch module ... 221
Second upper arm switch module ... 222
First end ... 2211,2221
Second end ... 2212,2222
3rd end ... 2213,2223
First underarm switch module ... 223
Second underarm switch module ... 224
First end ... 2231,2241
Second end ... 2232,2242
3rd end ... 2233,2243
First driver element ... 225
Second driver element ... 226
First end ... 2251,2261
Second end ... 2252,2262
3rd end ... 2253,2263
Control unit ... 24
Resistance unit ... 25
Motor coil ... L
Input power ... Vin
Operating voltage ... Vcc
Operating voltage ... Vs
Earth terminal ... GND
MOS electric crystals ... M1 on first
MOS electric crystals ... M2 on second
First time MOS electric crystals ... M3
Second time MOS electric crystals ... M4
First electric crystal ... Q1
Second electric crystal ... Q2
First resistor device ... R1
Second resistance device ... R2
3rd resistor device ... R3
4th resistor ... R4
5th resistor ... R5
6th resistor ... R6
7th resistor ... R7
8th resistor ... R8
9th resistor ... R9
Tenth resistor ... R10
11st resistor ... R11
12nd resistor ... R12
13rd resistor ... R13
First capacitor ... C1
Second capacitor ... C2
3rd capacitor ... C3
4th capacitor ... C4.
【Specific embodiment】
The above-mentioned purpose and its structure of the present invention and characteristic functionally, will be said according to the preferred embodiment of institute's accompanying drawings
It is bright.
The present invention provides a kind of circuit 2 of fan motor power-off brake automatically, refers to Fig. 2, shown in 3, and display is of the invention
Preferred embodiment square and circuit diagram；The circuit 2 of fan motor power-off brake automatically is applied in a fan (such as axle
Flow fan or centrifugal fan；Do not show in figure) on, the circuit 2 includes that an energy-storage units 21, a motor drive circuit 22, are controlled
The resistance unit 25 of unit 24 and, the energy-storage units 21 are expressed as a capacitor in the present embodiment, and the energy-storage units 21 are used to connect
An operating voltage Vcc (such as 12 volts) is received and stores, and the motor drive circuit 22 has plural upper arm switch module, plural number
Underarm switch module, one first driver element 225 and one second driver element 226, the upper arm switch module is in the present embodiment table
2 upper arm switch modules are shown as, the upper arm switch module has one first upper arm switch module 221 and one second upper arm switches set
Part 222, the first and second upper arm switch module 221,222 respectively have the end 2212,2222 of a first end 2211,2221, one second and
One the 3rd end 2213,2223, and the first and second upper arm switch member 221,222 (the i.e. arm switch on this of first end 2211,2221
The first end 2211 of component, 2221) with the mutually electric connection of the relative energy-storage units 21 and receive operating voltage Vcc, this
First, the second end 2212,2222 (the second end 2212,2222 of the upper arm switch module) of two upper arm switch modules 221,222 with
Two ends with respect to motor coil L are mutually electrically connected with, the 3rd end 2213,2223 of the first and second upper arm switch module 221,222
(i.e. the 3rd end 2213,2223 of the upper arm switch module) is electrically connected with the one first of relative first driver element 225
End 2251 and a first end 2261 of second driver element 226.
And the underarm switch module is expressed as 2 underarm switch modules in the present embodiment, the underarm switch module has one
First underarm switch module 223 and one second underarm switch module 224, the first and second underarm switch module 223,224 respectively have
The end 2233,2243 of one first end, 2231,2241, one second end 2232,2242 and the 3rd, the first and second underarm switch module
223rd, 224 first end 2231,2241 (first end 2231,2241 of the lower switch module) be electrically connected with it is relative this
First, the second end 2212,2222 of two upper arm switch modules 221,222, the second of the first and second underarm switch module 223,224
2232,2242 (the second ends 2232,2242 of the lower switch module) of end are then connected to an earth terminal GND, and this is under first and second
3rd end 2233,2243 (underarm closes the 3rd end 2233,2243 of component) of arm switch component 223,224 electrically connects respectively
Connect the relative control unit 24.Foregoing first and second driver element 225,226 respectively has aforementioned first ends 2251,2261,1 second
2252,2262 and 1 the 3rd end 2253,2263 of end, the first end 2251,2261 of first and second driver element 225,226 is distinguished
It is electrically connected with the 3rd end 2213,2223 of the relative upper arm switch module, the second end of first and second driver element 225,226
2252nd, 2262 it is electrically connected with the relative control unit 24, the 3rd end 2253 of first and second driver element 225,226,
2263 other ends for being electrically connected with the relative resistance unit 25 and the second end of the first and second underarm switch module 223,224
2232nd, one end of 2242 and earth terminal GND, and the resistance unit 25 is electrically connected with an input power Vin, input power Vin
(such as 12 volts) are used to provide power supply.
Another person, foregoing resistance unit 25 is a resistor, represents that resistance unit 25 is 0 ohmic resistor in the present embodiment.
Aforementioned control unit 24 is a central processing unit (Central Processing Unit, CPU) or a microcontroller (Micro
Control unit, MCU), and the control unit 24 has plural pin, wherein the four of the control unit 24 pin connects respectively
Connect to should first and second driver element 225,226 the second end 2252,2262 and the first and second underarm switch module 223,224
The 3rd end 2233,2243, and four pins of aforementioned control unit 24 are used to export a pulse width modulation (Pulse
Width Modulation；PWM) signal controls first and second driver element 225,226 to drive respectively on corresponding first and second
The switch motion (as switch is for conducting or switchs to be not turned on) of arm switch component 221,222 is opened with first and second underarm is controlled
The switch motion (as switch is for conducting or switchs to be not turned on) of pass component 223,224, and another pin of the control unit 24
A Hall element (not shown) is electrically connected with if (such as the 5th pin), is used to receive the Hall signal of Hall element transmission, should
An operating voltage Vs (such as 5 volts) is received if another pin (such as the 6th pin) of control unit 24.So through the present invention's
Foregoing resistance unit 25 makes circuit with braking function, and provides the operating voltage Vcc when powering off by the energy-storage units 21
Turned on to first and second upper arm switch module 221,222 of the motor drive circuit 22, make the first and second upper arm switch module
221st, 222 form a loop with two terminal shortcircuits of motor coil L and reach the effect of brake.By circuit of the invention 2
Design, after fan is powered off, the flabellum of fan can rotate (or operating) because of the effect of inertia of itself, and according to faraday's electromagnetism
Induction law (Faraday's law), makes the motor coil L on loop that induced-current is produced for closing coil, this sense
Induced current will make motor coil L produce an opposing magnetic field to prevent flabellum from operating, and allow fan to stop reaching the effect of brake quickly
Really.
It is continuous to refer to shown in Fig. 3, put up with each structure and describe in detail：
Foregoing first driver element 225 includes one first electric crystal Q1, a first resistor device R1, a second resistance device R2, one the
Three resistor R3, one the 4th resistor R4 and one first capacitor C1, first electric crystal Q1 are expressed as BJT in the present embodiment
(Bipolar Junction Transistor) electric crystal, first electric crystal Q1 has a base stage, an emitter-base bandgap grading and a collector,
The collector of first electric crystal Q1 is electrically connected with one end of second resistance device R2, and the emitter-base bandgap grading of first electric crystal Q1 is electrically connected with
One end of 3rd resistor device R3 and earth terminal GND, the other end of 3rd resistor device R3 and the one of first capacitor C1
The other end of end, one end of first resistor device R1 and second resistance device R2 is mutually electrically connected with jointly, and the first resistor device
The other end of the other end of the R1 resistance unit 25 relative with the common connection of the other end of the first capacitor C1, the 4th resistor
One end of R4 is electrically connected with the base stage of first electric crystal Q1, and its other end is electrically connected with a pin of the relative control unit 24
(such as the first pin).
And second driver element 226 comprising one second electric crystal Q2, one the 5th resistor R5, one the 6th resistor R6,
One the 7th resistor R7, one the 8th resistor R8 and one second capacitor C2, second electric crystal Q2 have a base stage, an emitter-base bandgap grading
And a collector, the collector of second electric crystal Q2 is electrically connected with one end of the 7th resistor R7, and the second electric crystal Q2's penetrates
Pole is electrically connected with one end and the earth terminal GND of the 6th resistor R6, the other end of the 6th resistor R6 and second electricity
The other end of one end of container C2, one end of the 5th resistor R5 and the 7th resistor R7 is mutually electrically connected with jointly, and should
The other end of the other end of the 5th resistor R5 foregoing resistance unit 25 relative with the common connection of the other end of the second capacitor C2,
One end of 8th resistor R8 is electrically connected with the base stage of second electric crystal Q2, and its other end is electrically connected with the relative control list
Another pin (such as the second pin) of unit 24.
Foregoing first upper arm switch module 221 includes MOS electric crystal M1, the second upper arm switch module 222 on one first
Comprising MOS electric crystal M2 on one second, this on first and second MOS electric crystals M1, M2 be expressed as p-type gold oxygen half in the present embodiment
Effect (PMOS) electric crystal, and MOS electric crystals M1, the M2 on first and second source electrode relative energy-storage units 21 of connection jointly
One end (i.e. the positive poles of the energy-storage units 21), the other end (i.e. the negative poles of the energy-storage units 21) of the energy-storage units 21 is electrically connected with
Earth terminal GND, the wherein energy-storage units 21 are electrically connected with a regulator rectifier circuit (not shown), foregoing regulator rectifier circuit
Operating voltage Vcc (such as 12 volts) is exported after input power Vin (such as 12 volts) the rectified voltage stabilizing that will be received to this
Energy-storage units 21, and the gate of MOS electric crystals M1, the M2 on first and second is electrically connected with corresponding first and second capacitor
One end.And the first underarm switch module 223 includes first time MOS electric crystals M3, one the 9th resistor R9,1 the tenth electricity
Resistance device R10 and one the 3rd capacitor C3, first time MOS electric crystals M3 are expressed as a N-type MOSFET in the present embodiment
(NMOS) electric crystal, the drain of first time MOS electric crystals M3 be electrically connected with to should on first MOS electric crystals M1 drain
And one end of motor coil L, the gate of first time MOS electric crystals M3 is electrically connected with the nine, the ten resistor R9, R10's
One end and one end of the 3rd capacitor C3, the other end of the 3rd capacitor C3 and the other end and the earth terminal of the tenth resistance
GND is electrically connected with together jointly, the connection of the other end of the 9th resistor R9 to should control unit 24 another pin (such as the
Three pins).
Another person, foregoing second underarm switch module 224 includes second time MOS electric crystals M4,1 the 11st resistor
R11,1 the 12nd resistor R12 and one the 4th capacitor C4, second time MOS electric crystals M4 are expressed as a N in the present embodiment
Type MOSFET (NMOS) electric crystal, the drain of second time MOS electric crystals M4 is electrically connected with to should MOS electricity on second
The drain of crystal M2 and the other end of motor coil L, the gate of second time MOS electric crystals M4 are electrically connected with the 11st, ten
One end of two resistor R11, R12 and one end of the 4th capacitor C4, the other end of the 4th capacitor C4 and the 12nd electricity
The other end of resistance and earth terminal GND are electrically connected with together jointly, and the other end of the 11st resistor R11 is connected to that should control
Another pin (such as the 4th pin) of unit processed 24, and the source electrode of first and second time MOS electric crystals M3, the M4 and 1 the 13rd electricity
One end of resistance device R13 is mutually electrically connected with, and the other end of the 13rd resistor R13 is electrically connected with earth terminal GND.
So when fan will start, the motor drive circuit 22 can receive input power Vin, and by the control list
The pwm signal of the output of unit 24 controls first and second driver element 225,226 to drive MOS electric crystals on corresponding first and second respectively
The switch motion of M1, M2 and first and second time switch motion of MOS electric crystals M3, M4 is controlled, use and reach control fan fortune
Turn and rotation speed of the fan, while operating voltage Vcc storages that the energy-storage units 21 will can be received (i.e. energy-storage units 21 are electrically charged)；
If when fan is powered off, aforementioned control unit 24 does not receive operating voltage Vs and can not work, with respect to the control unit 24
Four pin current potentials of middle output pwm signal are 0 volt, make first and second electric crystal of first and second driver element 225,226
Q1, Q2, first and second time MOS electric crystals M3, the M4 are also not turned on, now the gate of MOS electric crystals M1, the M2 on first and second
Each via being connected with the negative pole of energy-storage units with respect to the three, the six resistor R3, R6 and drop-down for (i.e. 0 volt of low potential
It is special), and operating voltage Vcc (i.e. 12 volts) simultaneously stored by the energy-storage units 21 can be supplied to this on first and second MOS electricity it is brilliant
The source electrode of body M1, M2, makes the source voltage of MOS electric crystals M1, the M2 on first and second be discharged for high potential is through energy-storage units 21
12 volts, now the voltage between the source electrode and gate of MOS electric crystals M1, the M2 on first and second is minus 12 volts (- 12V), while
MOS electric crystals M1, M2 conducting on first and second (i.e. the source electrode of MOS electric crystals M1, the M2 on first and second is turned on drain), makes
This on first and second MOS electric crystals M1, M2 and the terminal shortcircuits of motor coil L two form loop, because of the flabellum sheet after fan power-off
Body effect of inertia and operate, make to produce induced-current in the motor coil L on loop, this induced-current will make motor coil
L produces an opposing magnetic field to prevent flabellum operating, allows fan to stop reaching the effect of brake quickly.
Therefore, by the input power Vin and the resistance unit 25 of being connected between the other end of first resistor device R1 of the present invention
And the other end of first capacitor C1 and a circuit structure design for resistor of not connected between operating voltage Vcc, make circuit 2
With braking function, and operating voltage Vcc is provided to the of the motor drive circuit 22 when the power-off by the energy-storage units 21
First, two upper arm switch modules 221,222 and turn on, make the first and second upper arm switch module 221,222 and motor coil L-shaped into
Loop and then reach the effect of brake.In addition, through the design of this circuit 2 of the invention so that known horse can be effectively improved
Underarm switch module up to brake circuit needs additionally to add more electronic components to realize brake, therefore the present invention can effectively reach
Cost-effective effect.
Claims (8)
1. a kind of fan motor powers off the circuit of brake automatically, it is characterised in that including：
One energy-storage units, receive and store an operating voltage；
One motor drive circuit, with plural upper arm switch module, plural underarm switch module, one first driver element and 1 the
Two driver elements a, first end of the upper arm switch module is electrically connected with the energy-storage units and receives the operating voltage, one
Two ends are mutually electrically connected with a first end and the motor coil of the relative underarm switch module respectively, the underarm switch module
One second end is then connected to an earth terminal, and a first end of first and second driver element is electrically connected with the relative upper arm
One the 3rd end of switch module；
One control unit, is electrically connected with one the 3rd end of the relative lower arm switch and one second end of first and second driver element；
One resistance unit, its one end is electrically connected with an input power, and its other end is electrically connected with relative first and second driver element
One the 3rd end and the underarm switch module the second end；And
Wherein when the fan is powered off, the upper arm switch module receives the operating voltage of energy-storage units offer and turns on,
The underarm switch module does not receive the operating voltage and is not turned on, and makes the upper arm switch module form an envelope with the motor coil
Loop circuit and brake.
2. fan motor according to claim 1 powers off the circuit of brake automatically, it is characterised in that the upper arm switch module
With one first upper arm switch module and one second upper arm switch module, the first end of the first and second upper arm switch member with should
Energy-storage units are mutually electrically connected with, and second end of the first and second upper arm switch module is electrically connected with the relative motor coil
Two ends, the 3rd end of the first and second upper arm switch module be electrically connected with relative first and second driver element this
One end.
3. fan motor according to claim 2 powers off the circuit of brake automatically, it is characterised in that the underarm switch module
With one first underarm switch module and one second underarm switch module, first end point of the first and second underarm switch module
Electricity Xing Lianjie not be with respect to the two ends of the motor coil, the second end of the first and second underarm switch module is respectively and electrically connected to this
Earth terminal, the 3rd end of the first and second underarm switch module is electrically connected with the relative control unit.
4. fan motor according to claim 3 powers off the circuit of brake automatically, it is characterised in that the resistance unit is one
Resistor, one end of the resistance unit is electrically connected with the input power, the other end of the resistance unit and relative first and second drive
3rd end of moving cell and the second end of the first and second underarm switch module are mutually electrically connected with.
5. fan motor according to claim 1 powers off the circuit of brake automatically, it is characterised in that the control unit is one
Central processing unit or a microcontroller.
6. fan motor according to claim 1 powers off the circuit of brake automatically, it is characterised in that first driver element
Comprising one first electric crystal, a first resistor device, a second resistance device, a 3rd resistor device, one the 4th resistor and one first
Capacitor, first electric crystal has a base stage, an emitter-base bandgap grading and a collector, and the collector is electrically connected with the one of the second resistance device
End, the emitter-base bandgap grading is electrically connected with one end and earth terminal of the 3rd resistor device, the other end of the 3rd resistor device and first electricity
The other end of one end of container, one end of the first resistor device and the second resistance device is mutually electrically connected with jointly, and first electricity
The other end of device and the other end relative resistance unit of connection of the first capacitor is hindered, one end of the 4th resistor is electrically connected with
The base stage, its other end is electrically connected with the relative control unit.
7. fan motor according to claim 6 powers off the circuit of brake automatically, it is characterised in that second driver element
Comprising one second electric crystal, one the 5th resistor, one the 6th resistor, one the 7th resistor, one the 8th resistor and one second
Capacitor, second electric crystal has a base stage, an emitter-base bandgap grading and a collector, and the collector of second electric crystal is electrically connected with should
One end of 7th resistor, emitter-base bandgap grading of second electric crystal is electrically connected with one end and the earth terminal of the 6th resistor, should
The other end of the 6th resistor is another with one end of second capacitor, one end of the 5th resistor and the 7th resistor
End is common to be mutually electrically connected with, and the 5th resistor is another with the other end relative resistance unit of connection of the second capacitor
End, one end of the 8th resistor is electrically connected with the base stage of second electric crystal, and its other end is electrically connected with the relative control
Unit.
8. fan motor according to claim 4 powers off the circuit of brake automatically, it is characterised in that the resistance unit is 0
Ohmic resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611219607.4A CN106870426B (en) | 2016-12-26 | 2016-12-26 | Fan motor powers off the circuit of brake automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611219607.4A CN106870426B (en) | 2016-12-26 | 2016-12-26 | Fan motor powers off the circuit of brake automatically |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106870426A true CN106870426A (en) | 2017-06-20 |
| CN106870426B CN106870426B (en) | 2018-07-31 |
Family
ID=59164182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611219607.4A Active CN106870426B (en) | 2016-12-26 | 2016-12-26 | Fan motor powers off the circuit of brake automatically |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106870426B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111669078A (en) * | 2020-06-03 | 2020-09-15 | 奇宏电子(深圳)有限公司 | Fan brake circuit of active standby power supply |
| TWI732582B (en) * | 2020-06-03 | 2021-07-01 | 大陸商奇宏電子（深圳）有限公司 | Active brake circuit for fan with backup power |
| US11296622B2 (en) | 2020-06-23 | 2022-04-05 | Asia Vital Components (Shen Zhen) Co., Ltd. | Active brake circuit for fan with backup power |
| US11482953B2 (en) | 2021-01-08 | 2022-10-25 | Actron Technology Corporation | Electric actuator device and control method thereof |
| TWI790862B (en) * | 2021-12-17 | 2023-01-21 | 茂達電子股份有限公司 | Braking control system of motor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070145923A1 (en) * | 2005-12-23 | 2007-06-28 | Delta Electronics, Inc. | Fan system and real-time stopping device thereof |
| CN101846092A (en) * | 2004-03-23 | 2010-09-29 | 台达电子工业股份有限公司 | Method for instantly shutting down fan after power cut and structure thereof |
| CN102116304A (en) * | 2010-01-05 | 2011-07-06 | 建准电机工业股份有限公司 | Fan system and brake circuit thereof |
| JP2013174077A (en) * | 2012-02-24 | 2013-09-05 | Hi-Lex Corporation | Opening/closing body control device |
| CN105650016A (en) * | 2014-11-21 | 2016-06-08 | 奇鋐科技股份有限公司 | Circuit for outage brake of DC fan |
| CN206478031U (en) * | 2016-12-26 | 2017-09-08 | 奇鋐科技股份有限公司 | Fan motor powers off the circuit of brake automatically |
-
2016
- 2016-12-26 CN CN201611219607.4A patent/CN106870426B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846092A (en) * | 2004-03-23 | 2010-09-29 | 台达电子工业股份有限公司 | Method for instantly shutting down fan after power cut and structure thereof |
| US20070145923A1 (en) * | 2005-12-23 | 2007-06-28 | Delta Electronics, Inc. | Fan system and real-time stopping device thereof |
| CN102116304A (en) * | 2010-01-05 | 2011-07-06 | 建准电机工业股份有限公司 | Fan system and brake circuit thereof |
| JP2013174077A (en) * | 2012-02-24 | 2013-09-05 | Hi-Lex Corporation | Opening/closing body control device |
| CN105650016A (en) * | 2014-11-21 | 2016-06-08 | 奇鋐科技股份有限公司 | Circuit for outage brake of DC fan |
| CN206478031U (en) * | 2016-12-26 | 2017-09-08 | 奇鋐科技股份有限公司 | Fan motor powers off the circuit of brake automatically |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111669078A (en) * | 2020-06-03 | 2020-09-15 | 奇宏电子(深圳)有限公司 | Fan brake circuit of active standby power supply |
| TWI732582B (en) * | 2020-06-03 | 2021-07-01 | 大陸商奇宏電子（深圳）有限公司 | Active brake circuit for fan with backup power |
| US11296622B2 (en) | 2020-06-23 | 2022-04-05 | Asia Vital Components (Shen Zhen) Co., Ltd. | Active brake circuit for fan with backup power |
| US11482953B2 (en) | 2021-01-08 | 2022-10-25 | Actron Technology Corporation | Electric actuator device and control method thereof |
| TWI790862B (en) * | 2021-12-17 | 2023-01-21 | 茂達電子股份有限公司 | Braking control system of motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106870426B (en) | 2018-07-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106870426A (en) | Fan motor powers off the circuit of brake automatically | |
| CN104301475B (en) | Mobile terminal with flash lamp and flashlight function | |
| CN102695319A (en) | LED stepless light regulating circuit | |
| CN206135752U (en) | Motor element , integrated circuit and application apparatus | |
| CN105202250B (en) | A kind of energy-saving driving device of low tension magnetic-type electrical equipment | |
| CN206478031U (en) | Fan motor powers off the circuit of brake automatically | |
| CN106329821B (en) | Motor system and the fan system for using the motor system | |
| CN106020004A (en) | Power supply on-off time sequence control circuit and control method | |
| CN106968978A (en) | Data center's fan control circuitry | |
| CN206513603U (en) | Fan foreward/rearward rotation controller and use its power supply unit | |
| CN207588827U (en) | A kind of self-locking power switch device | |
| EP3651334A1 (en) | Power supply drive module, power supply device and electronic cigarette | |
| CN100435468C (en) | Fan control device and method | |
| CN205811977U (en) | A kind of pwm control signal produces circuit | |
| CN206879112U (en) | A kind of heat driven control chip | |
| TWI614984B (en) | Fan motor power failure automatic brake circuit | |
| CN208479984U (en) | The parallel connection LED flow equalizing circuit of motor-driven system | |
| CN203009348U (en) | Fan speed control system based on thermistor design | |
| CN207720106U (en) | A kind of high-efficiency and energy-saving type P+N raceway groove driving circuits | |
| CN205540345U (en) | Mixing machine | |
| CN206620303U (en) | Power control circuit and cooking apparatus | |
| CN105720871B (en) | A kind of micropower DC motor control circuit and its control method, fender | |
| CN107135555A (en) | A kind of heat driven control chip | |
| CN114267284B (en) | Display control circuit, display device and integrated control chip | |
| CN110398519A (en) | A kind of three array NOx sensor measuring circuits |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |