CN104467623A - Fan motor speed adjusting device, fan with same and fan motor - Google Patents
Fan motor speed adjusting device, fan with same and fan motor Download PDFInfo
- Publication number
- CN104467623A CN104467623A CN201410765030.1A CN201410765030A CN104467623A CN 104467623 A CN104467623 A CN 104467623A CN 201410765030 A CN201410765030 A CN 201410765030A CN 104467623 A CN104467623 A CN 104467623A
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- fan
- motor
- speed adjusting
- regulation device
- speed regulation
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- 230000033228 biological regulation Effects 0.000 claims description 52
- 230000002457 bidirectional effect Effects 0.000 claims description 34
- 238000000034 method Methods 0.000 abstract description 25
- 238000004804 winding Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 8
- 230000032683 aging Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 6
- 239000003990 capacitor Substances 0.000 abstract 3
- 230000003116 impacting effect Effects 0.000 abstract 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000010363 phase shift Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/16—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using ac to ac converters without intermediate conversion to dc
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- H02K11/044—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The invention relates to a fan motor speed adjusting device, a fan with the fan motor speed adjusting device and a fan motor. The fan motor speed adjusting device comprises a switch control circuit, a speed adjusting circuit and a starting circuit. According to the fan motor speed adjusting device, firstly, the torque force of the motor is determined through the phase shifting effect of a starting capacitor in the starting circuit, and then the speed of the motor is adjusted through the speed adjusting circuit. The starting capacitor shares voltage with the motor and relieves impacting force of current on the motor, and therefore fluctuation is greatly reduced when the current torque force of the motor is stable. According to the fan motor speed adjusting device, the fan with the fan motor speed adjusting device and the fan motor, the advantages of an electronic speed adjusting method and the advantages of a capacitor speed adjusting method are combined, and on the premise that it is guaranteed that each speed adjusting gear can obtain maximum torque force generated by a motor winding, the motor is intelligently controlled through electronic speed adjustment; thus, impacting force of current on the motor is relieved, the current torque force of the motor can be stable, the service life of the motor is prolonged, and aging of all devices is relieved; the circuit structure is simple, and maintenance is convenient.
Description
Technical field
The present invention relates to electric machine speed regulation field, particularly relate to a kind of motor speed regulation device for fan and apply fan and the fan electromotor of this device.
Background technology
The motor of fan is a kind of alternating current motor, and its operation principle is: realized by stressed in magnetic field of its hot-wire coil rotating.The rotating speed of alternating current motor is different, and the air force of generation is also different, and the air quantity produced to make fan meets people's instructions for use under various circumstances, is necessary to regulate and control the rotating speed of fan electromotor.In prior art, generally by the following method speed governing is carried out to the motor of fan:
(1) tap method: the motor due to tap speed-regulating has main winding, middle winding and auxiliary winding; Then tap rule utilizes tap to reduce the winding voltage of motor, thus weakens magnetic field intensity to realize speed governing.But the coiling of tap method, the line of fall and patching operations are all very complicated, and the scope of application is restricted, the rotating speed being not easy to motor switches, and service efficiency is lower.
(2) reactance method: reactance speed governing is the reactor by sealing in different induction reactance value, thus change winding voltage turns ratio realizes speed governing.Although it is simple that reactance method has coiling, advantage easy to maintenance, can make user at will cannot regulate the speed governing of motor; And due to the volume of reactance comparatively large, cause alignment circuit volume large, be not easy to install or transport.
(3) capacitance method: electric capacity governing is that the level of torque changing the generation of motor winding by changing the voltage phase angle relation indirect being added in auxiliary winding realizes speed governing.The advantage that cost is lower, lightweight although capacitance method has, electromagnetic noise is little, its useful life is short and low or first gear is difficult to startup.
(4) electronic method: electron speed regulator utilizes silicon controlled semiconductor principle, by changing the duty ratio being added to SCR control pole trigger impulse, control silicon controlled ON time and then realize controlling motor winding to obtain the time length of the torque of electric generation to realize speed governing.The feature that regulating effect is good although electron speed regulator has, the life-span is long, its cost is higher.Although electronic speed regulation method is widely used, because the existing controllable silicon that directly utilizes realizes fan electromotor speed governing, then the rear motor that is energized directly is subject to the impulsive force of electric current, shortens the useful life of motor; Simultaneously each device can the accelerated ageing due to arc phenomenon; Further, the existing circuit structure utilizing controllable silicon to realize speed governing is complicated, is unfavorable for safeguarding.
Summary of the invention
In order to overcome the shortcoming of prior art with not enough, the first object of the present invention is to provide a kind of motor speed regulation device for fan and applies fan and the fan electromotor of this device, combine the advantage of electronic speed regulation method and electric capacity governing method, ensure that under each speed governing gear obtains the prerequisite of the breakdown torque power that motor winding produces, by electronic speed regulation, Based Intelligent Control is carried out to motor again, thus extend the useful life of motor and slow down the aging of each device; And its circuit structure is simple, easy to maintenance.Another two objects of the present invention are to provide a kind of fan electromotor and the fan of applying said fans motor speed control device.
For reaching the first object of the present invention, the invention provides a kind of motor speed regulation device for fan, it comprises ON-OFF control circuit, alignment circuit and starting circuit;
Described alignment circuit comprises triggering electric capacity, bidirectional trigger diode and bidirectional thyristor; Described triggering electric capacity one end is connected with bidirectional trigger diode one end with ON-OFF control circuit output simultaneously, and the other end is connected with the first main electrode of bidirectional thyristor; The other end of described bidirectional trigger diode is connected with the grid of bidirectional thyristor; Second main electrode of described bidirectional thyristor is connected with ON-OFF control circuit input;
Described starting circuit comprises the first start terminal, the second start terminal, starting capacitance and the 3rd start terminal; Described first start terminal connects with the one end connected with bidirectional thyristor in triggering electric capacity; Described second start terminal is connected with the second main electrode of bidirectional thyristor by described starting capacitance; Described 3rd start terminal is used for as zero line incoming end.
Described ON-OFF control circuit comprises at least two and is connected in parallel and the different switching branches of resistance.
Described ON-OFF control circuit comprises the first switching branches, second switch branch road and the 3rd switching branches that are connected in parallel; Described first switching branches comprises switch one and speed adjusting resistance one; Described second switch branch road comprises switch two and speed adjusting resistance two; Described 3rd switching branches comprises switch three and speed adjusting resistance three.
The resistance of described speed adjusting resistance one differs 0-75K Ω with the resistance of speed adjusting resistance two; The resistance of described speed adjusting resistance three and the resistance difference 10-35K Ω of speed adjusting resistance two.
The resistance of described speed adjusting resistance one is 0 Ω.
A current-limiting resistance is provided with between the one end be connected with the output of ON-OFF control circuit in described triggering electric capacity and the output of ON-OFF control circuit.
By ON-OFF control circuit and alignment circuit, achieve the switching of rotating speed; Utilize the speed adjusting resistance of every bar branch road in ON-OFF control circuit to change charging voltage pressure value and the charging interval at triggering electric capacity two ends, thus change the ON time of bidirectional trigger diode and bidirectional thyristor, change the output frequency of starting circuit; Due to starting circuit and the first start terminal, the second start terminal and the 3rd start terminal output to respectively in three power access ends of motor, then the frequency of supply of motor also can change; Reach change motor torque thus, realize the object of speed governing.In above process, motor speed regulation device for fan of the present invention determines the torque force of motor by the phase shift effect of starting capacitance, by alignment circuit, speed governing is carried out to motor again, starting capacitance is that motor has been shared voltage and slow down the impulsive force of electric current to motor, the torque force making motor current is in stable state, fluctuation is reduced greatly, thus makes motor more durable.Therefore, present invention incorporates the advantage of electronic speed regulation method and electric capacity governing method, ensure that under each speed governing gear obtains the prerequisite of the breakdown torque power that motor winding produces, then by electronic speed regulation, Based Intelligent Control is carried out to motor; Thus slow down the impulsive force of electric current to motor, the torque force making motor current is in stable state, extends the useful life of motor and slow down the aging of each device; And its circuit structure is simple, easy to maintenance.
For reaching the second object of the present invention, the invention provides a kind of fan electromotor, comprising motor, motor speed regulation device for fan and electric fan.The input of described motor is electrically connected with described motor speed regulation device for fan, and described electric fan fixed cover is located on the output shaft of motor.This motor speed regulation device for fan is the motor speed regulation device for fan described in above-mentioned any one.Because said fans motor speed control device has above-mentioned technique effect, so the fan electromotor comprising this motor speed regulation device for fan also has identical technique effect.
For reaching the third object of the present invention, present invention also offers a kind of fan, comprising shell and being arranged on the fan electromotor in shell.Described fan electromotor comprises motor, motor speed regulation device for fan and electric fan; The input of described motor is electrically connected with described motor speed regulation device for fan, and described electric fan fixed cover is located on the output shaft of motor.This motor speed regulation device for fan is the motor speed regulation device for fan described in above-mentioned any one.Because said fans motor speed control device has above-mentioned technique effect, so the fan comprising this motor speed regulation device for fan also has identical technique effect.
In order to understand better and implement, describe the present invention in detail below in conjunction with accompanying drawing.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of motor speed regulation device for fan of the present invention;
Fig. 2 be motor speed regulation device for fan of the present invention access power supply and motor time electrical block diagram;
Fig. 3 is the packaged type of motor speed regulation device for fan of the present invention in practical application and the wiring schematic diagram of the mode of connection.
Embodiment
The invention provides a kind of motor speed regulation device for fan and apply fan electromotor and the fan of this device.Motor speed regulation device for fan of the present invention combines the advantage of electronic speed regulation method and electric capacity governing method, ensure that under each speed governing gear obtains the prerequisite of the breakdown torque power that motor winding produces, then carries out Based Intelligent Control by electronic speed regulation to motor; Thus slow down the impulsive force of electric current to motor, the torque force making motor current is in stable state, extends the useful life of motor and slow down the aging of each device; And its circuit structure is simple, easy to maintenance.
Fan of the present invention comprises shell and is arranged on the fan electromotor in shell.
Described fan electromotor comprises motor, motor speed regulation device for fan and electric fan.The input of described motor is electrically connected with described motor speed regulation device for fan, and described electric fan fixed cover is located on the output shaft of motor.
Particularly, refer to Fig. 1, described motor speed regulation device for fan comprises ON-OFF control circuit 1, alignment circuit 2 and starting circuit 3.The input access live wire of described ON-OFF control circuit 1; The input of described alignment circuit 2 is connected with the output of ON-OFF control circuit 1; Described starting circuit 3 has three input terminals, and wherein two input terminals connect with the output of alignment circuit 2, an other input terminal access zero line.
Described ON-OFF control circuit 1 comprises at least two and is connected in parallel and the different switching branches of resistance.In the present embodiment, described ON-OFF control circuit 1 comprises and being connected in parallel and different three switching branches of resistance, is respectively the first switching branches 11, second switch branch road 12 and the 3rd switching branches 13.Described first switching branches 11 comprises switch one S1 and speed adjusting resistance one; Described second switch branch road 12 comprises switch two S2 and speed adjusting resistance two R2; Described 3rd switching branches 13 comprises switch Three S's 3 and speed adjusting resistance three R3.Described first switching branches 11, second switch branch road 12 and the 3rd switching branches 13 are connected in parallel to be formed and only have the ON-OFF control circuit 1 of an a power input terminal a and switch control rule lead-out terminal b.
The resistance of described speed adjusting resistance one differs 0-75 Ω with the resistance of speed adjusting resistance two; The resistance of described speed adjusting resistance three R3 and the resistance difference 10-35K Ω of speed adjusting resistance two R2.
In the present embodiment, the resistance of described speed adjusting resistance one is 0 Ω.
Described alignment circuit 2 comprises triggering electric capacity C1, bidirectional trigger diode DB3 and bidirectional thyristor TRIAC.Described triggering electric capacity C1 one end c is connected with bidirectional trigger diode DB3 one end with the switch control rule lead-out terminal b of ON-OFF control circuit 1 simultaneously, and other end d is connected with the first main electrode MT1 of bidirectional thyristor TRIAC; The other end of described bidirectional trigger diode DB3 is connected with the grid G of bidirectional thyristor TRIAC; The second main electrode MT2 of described bidirectional thyristor TRIAC is connected with the power input terminal a of ON-OFF control circuit 1.
Further, in order to reduce the impact of electric current in circuit, preferably, a current-limiting resistance R0 is provided with between one end c be connected with the switch control rule lead-out terminal b of ON-OFF control circuit 1 in described triggering electric capacity C1 and the switch control rule lead-out terminal b of ON-OFF control circuit 1.
Described starting circuit 3 comprises the first start terminal e, the second start terminal f, starting capacitance C2 and the 3rd start terminal g.Described first start terminal e connects with one end d connected with bidirectional thyristor TRIAC in triggering electric capacity C1; Described second start terminal f is connected with the second main electrode MT2 of bidirectional thyristor TRIAC by described starting capacitance C2; Described 3rd start terminal g is used for as zero line incoming end.And described first start terminal e, the second start terminal f and the 3rd start terminal g output to three inputs of motor respectively.
Please refer to Fig. 2, when using motor speed regulation device for fan of the present invention, first between three start terminal of starting circuit 3, access motor M; Then, the power input terminal access live wire of ON-OFF control circuit 1, the 3rd start terminal g accesses zero line simultaneously; Complete outside all wiring thus, only need to select the on off state of control switch circuit just can realize the speed governing of motor M.Refer to Fig. 3, in actual applications, ON-OFF control circuit 1 is encapsulated as mechanical switch group, alignment circuit 2 is encapsulated as electron speed regulator, and realize the connection to each several part circuit and motor according to above-mentioned connection principle, complete all wiring.Because the resistance of the every bar switching branches in ON-OFF control circuit 1 is different, the conversion just by selecting diverter switch to realize motor M rotating speed, thus meet use needs.
In the process realizing motor M speed governing, the closed charging that can realize triggering electric capacity C1 in alignment circuit 2 of a certain switch in ON-OFF control circuit 1, power supply can to the starting capacitance C2 charging in starting circuit 3 simultaneously.During owing to reaching the trigger voltage value of bidirectional trigger diode DB3 when the pressure value triggering electric capacity C1 two ends, bidirectional trigger diode DB3 conducting, now bidirectional thyristor TRIAC also conducting; Starting capacitance C2 charging is complete; Motor M is normally run.Then when the resistance in ON-OFF control circuit 1 changes, the charging voltage pressure value and charging interval that trigger electric capacity C1 two ends can be had influence on, change the ON time of bidirectional trigger diode DB3 and bidirectional thyristor TRIAC thus, change the frequency of supply of motor M, the torque of motor M also can be changed, thus realize motor M speed governing.Before motor M realizes speed governing, the present invention determines the torque force of motor M by the phase shift effect of starting capacitance C2, and then carries out speed governing by alignment circuit 2 pairs of motor M.Utilize starting capacitance C2 to share voltage for motor M and slow down the impulsive force of electric current to motor M, the torque force making motor M current is in stable state, and fluctuation is reduced greatly, thus makes motor M more durable; Recycling silicon controlled mode of speed regulation enhances the rotational speed regulation effect of motor M, makes motor M speed efficiency higher, and extends the useful life of motor M further.By utilizing electronic speed regulation and electric capacity governing, enormously simplify circuit structure, extending the useful life of motor M.
Relative to prior art, motor speed regulation device for fan of the present invention and apply the advantage that the fan of this device and fan electromotor combine electronic speed regulation method and electric capacity governing method, ensure that under each speed governing gear obtains the prerequisite of the breakdown torque power that motor winding produces, then by electronic speed regulation, Based Intelligent Control is carried out to motor; Thus slow down the impulsive force of electric current to motor, the torque force making motor current is in stable state, extends the useful life of motor and slow down the aging of each device; And its circuit structure is simple, easy to maintenance.
The present invention is not limited to above-mentioned execution mode, if do not depart from the spirit and scope of the present invention to various change of the present invention or distortion, if these are changed and distortion belongs within claim of the present invention and equivalent technologies scope, then the present invention is also intended to comprise these changes and distortion.
Claims (8)
1. a motor speed regulation device for fan, is characterized in that: comprise ON-OFF control circuit, alignment circuit and starting circuit;
Described alignment circuit comprises triggering electric capacity, bidirectional trigger diode and bidirectional thyristor; Described triggering electric capacity one end is connected with bidirectional trigger diode one end with ON-OFF control circuit output simultaneously, and the other end is connected with the first main electrode of bidirectional thyristor; The other end of described bidirectional trigger diode is connected with the grid of bidirectional thyristor; Second main electrode of described bidirectional thyristor is connected with ON-OFF control circuit input;
Described starting circuit comprises the first start terminal, the second start terminal, starting capacitance and the 3rd start terminal; Described first start terminal connects with the one end connected with bidirectional thyristor in triggering electric capacity; Described second start terminal is connected with the second main electrode of bidirectional thyristor by described starting capacitance; Described 3rd start terminal is used for as zero line incoming end.
2. motor speed regulation device for fan according to claim 1, is characterized in that: described ON-OFF control circuit comprises at least two and is connected in parallel and the different switching branches of resistance.
3. motor speed regulation device for fan according to claim 2, is characterized in that: described ON-OFF control circuit comprises the first switching branches, second switch branch road and the 3rd switching branches that are connected in parallel; Described first switching branches comprises switch one and speed adjusting resistance one; Described second switch branch road comprises switch two and speed adjusting resistance two; Described 3rd switching branches comprises switch three and speed adjusting resistance three.
4. motor speed regulation device for fan according to claim 3, is characterized in that: the resistance of described speed adjusting resistance one differs 0-75K Ω with the resistance of speed adjusting resistance two; The resistance of described speed adjusting resistance three and the resistance difference 10-35K Ω of speed adjusting resistance two.
5. motor speed regulation device for fan according to claim 4, is characterized in that: the resistance of described speed adjusting resistance one is 0 Ω.
6. motor speed regulation device for fan according to claim 1, is characterized in that: be provided with a current-limiting resistance between the one end be connected with the output of ON-OFF control circuit in described triggering electric capacity and the output of ON-OFF control circuit.
7. a fan electromotor, comprises motor, motor speed regulation device for fan and electric fan; The input of described motor is electrically connected with described motor speed regulation device for fan, and described electric fan fixed cover is located on the output shaft of motor; It is characterized in that: described motor speed regulation device for fan is the motor speed regulation device for fan described in the arbitrary claim of claim 1 ~ 6.
8. a fan, comprises shell and is arranged on the fan electromotor in shell; Described fan electromotor comprises motor, motor speed regulation device for fan and electric fan; The input of described motor is electrically connected with described motor speed regulation device for fan, and described electric fan fixed cover is located on the output shaft of motor; It is characterized in that: described motor speed regulation device for fan is the motor speed regulation device for fan described in the arbitrary claim of claim 1 ~ 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410765030.1A CN104467623A (en) | 2014-12-12 | 2014-12-12 | Fan motor speed adjusting device, fan with same and fan motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410765030.1A CN104467623A (en) | 2014-12-12 | 2014-12-12 | Fan motor speed adjusting device, fan with same and fan motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104467623A true CN104467623A (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410765030.1A Pending CN104467623A (en) | 2014-12-12 | 2014-12-12 | Fan motor speed adjusting device, fan with same and fan motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104467623A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106681207A (en) * | 2016-12-23 | 2017-05-17 | 浙江大学 | Single-chip microcomputer power switch doubling as shifting module and control method thereof |
| CN107181295A (en) * | 2017-05-10 | 2017-09-19 | 上海空间电源研究所 | A kind of space integration battery discharging on-off circuit |
| CN108680853A (en) * | 2018-04-03 | 2018-10-19 | 广州嘉能自动化设备有限公司 | A kind of motor ages test method and its experimental rig using phase shift power supply |
| CN110071679A (en) * | 2018-01-23 | 2019-07-30 | 德昌电机(深圳)有限公司 | Circuit for controlling motor |
| CN113187753A (en) * | 2021-04-28 | 2021-07-30 | 广州彩熠灯光股份有限公司 | Fan control device and lamp |
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| CN2471807Y (en) * | 2000-12-26 | 2002-01-16 | 赵忠 | Energy saving controller for electric industrial sewing machine |
| US20070145917A1 (en) * | 2005-12-22 | 2007-06-28 | Shop Vac Corporation | Rechargeable vacuum with reduced AC voltage |
| CN201518467U (en) * | 2009-10-27 | 2010-06-30 | 广东志高空调有限公司 | Single-phase motor soft starter and air conditioner with same |
| CN204376804U (en) * | 2014-12-12 | 2015-06-03 | 陈伟禧 | A kind of motor speed regulation device for fan and apply fan and the fan electromotor of this device |
-
2014
- 2014-12-12 CN CN201410765030.1A patent/CN104467623A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2471807Y (en) * | 2000-12-26 | 2002-01-16 | 赵忠 | Energy saving controller for electric industrial sewing machine |
| US20070145917A1 (en) * | 2005-12-22 | 2007-06-28 | Shop Vac Corporation | Rechargeable vacuum with reduced AC voltage |
| CN201518467U (en) * | 2009-10-27 | 2010-06-30 | 广东志高空调有限公司 | Single-phase motor soft starter and air conditioner with same |
| CN204376804U (en) * | 2014-12-12 | 2015-06-03 | 陈伟禧 | A kind of motor speed regulation device for fan and apply fan and the fan electromotor of this device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106681207A (en) * | 2016-12-23 | 2017-05-17 | 浙江大学 | Single-chip microcomputer power switch doubling as shifting module and control method thereof |
| CN107181295A (en) * | 2017-05-10 | 2017-09-19 | 上海空间电源研究所 | A kind of space integration battery discharging on-off circuit |
| CN110071679A (en) * | 2018-01-23 | 2019-07-30 | 德昌电机(深圳)有限公司 | Circuit for controlling motor |
| CN110071679B (en) * | 2018-01-23 | 2023-10-20 | 德昌电机(深圳)有限公司 | Motor control circuit |
| CN108680853A (en) * | 2018-04-03 | 2018-10-19 | 广州嘉能自动化设备有限公司 | A kind of motor ages test method and its experimental rig using phase shift power supply |
| CN113187753A (en) * | 2021-04-28 | 2021-07-30 | 广州彩熠灯光股份有限公司 | Fan control device and lamp |
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Application publication date: 20150325 |
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