CN109861593A - A kind of hollow-cup motor control method - Google Patents
A kind of hollow-cup motor control method Download PDFInfo
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- CN109861593A CN109861593A CN201811616925.3A CN201811616925A CN109861593A CN 109861593 A CN109861593 A CN 109861593A CN 201811616925 A CN201811616925 A CN 201811616925A CN 109861593 A CN109861593 A CN 109861593A
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Abstract
The invention discloses a kind of hollow-cup motor control methods, including MCU, H-bridge circuit, voltage controllable electric power, system power supply and encoder, system power supply connects MCU, and voltage controllable electric power is separately connected MCU and H-bridge circuit, H-bridge circuit is separately connected MCU and hollow-cup motor, hollow-cup motor connects MCU by encoder, and the present invention realizes motor control by a feedback signal, two PWM controls, system is simple, easy to accomplish, development cost is low, and debugging range is wide.
Description
Technical field
The present invention relates to motor control technology field, specially a kind of hollow-cup motor control method.
Background technique
Hollow-cup motor belongs to direct current, permanent magnetism, servo small and special electric machine.Drag cup motor have energy conservation characteristic outstanding,
Sensitive convenient control characteristic and stable operation characteristic represent the hair of motor as efficient energy conversion device
Open up direction.Hollow-cup motor breaches the rotor structure form of conventional motors in structure, using iron-core-free rotor.It is hollow
Cup motor has energy conservation, control and drag characteristics very outstanding, and hollow-cup motor, which is divided into, brush and brushless two kinds, has brush hollow
Cup rotor iron-core-free, brushless hollow-cup motor stator iron-core-free.
Hollow-cup motor is mostly driven to mainstream to adjust frequency, FOC, square wave at present, using tune when driving with real electrical machinery
It is very more to save parameter, it is not easy to grasp, control motor speed range, lower velocity limit is restricted.
Summary of the invention
It is mentioned above in the background art to solve the purpose of the present invention is to provide a kind of hollow-cup motor control method
Problem.
To achieve the above object, the invention provides the following technical scheme: a kind of hollow-cup motor control method, including MCU,
H-bridge circuit, voltage controllable electric power, system power supply and encoder, the system power supply connect MCU, the voltage controllable electric power point
Not Lian Jie MCU and H-bridge circuit, the H-bridge circuit is separately connected MCU and hollow-cup motor, and the hollow-cup motor passes through coding
Device connects MCU.
Preferably, the H-bridge circuit includes triode A, triode B, triode C and triode D, the triode A base
Pole connects the one end resistance A, emitter ground connection, and collector is separately connected the one end resistance C and the pole field effect transistor AG, three pole
Pipe B base stage connects the one end resistance B, and emitter ground connection, collector is separately connected the one end resistance D, the pole field effect transistor BG, described
Capacitor A is connected between triode B collector and emitter, the pole the field effect transistor AD is separately connected field effect transistor BD
Pole, the one end resistance J and the one end resistance K, the pole the field effect transistor BS are grounded by resistance E.
Preferably, the triode C base stage connects the one end resistance H, emitter ground connection, and collector is separately connected resistance F mono-
End, the pole field effect transistor CG, the pole the field effect transistor CD is separately connected the pole field effect transistor DD, light emitting diode A
Cathode, light emitting diode B anode, the light emitting diode A anode connect the resistance J other end, and the light emitting diode B cathode connects
The connecting resistance K other end, the pole the field effect transistor DS connect the pole field effect transistor BS, the triode D emitter sum aggregate
Capacitor B is connected between electrode.
Preferably, comprising the following steps:
A, encoder feedback signal feeds back to MCU, and MCU knows accurate commutation position, controls PWM timing；
B, H- bridge circuit provides PWM timing by MCU and switches bridge conducting up and down, make drag cup three-phase coil successively electric rotate
Come, velocity of rotation speed；
C, PWM square wave drive voltage controllable electric power is controlled by MCU, changes voltage controllable electric power output voltage size, output electricity
Press big motor speed fast, conversely, speed is slow.
Compared with prior art, the beneficial effects of the present invention are:
(1) present invention realizes motor control by a feedback signal, two PWM controls, and system is simple, easy to accomplish, exploitation
At low cost, debugging range is wide.
(2) H-bridge circuit that uses of the present invention can effectively prevent field-effect tube damage, high reliablity when work.
Detailed description of the invention
Fig. 1 is invention's principle block diagram；
Fig. 2 is H-bridge circuit schematic diagram of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of technical solution referring to FIG. 1-2: a kind of hollow-cup motor control method, including MCU1, H
Bridge circuit 2, voltage controllable electric power 3, system power supply 4 and encoder 5, the system power supply 4 connect MCU1, the voltage controllable electric
Source 3 is separately connected MCU1 and H-bridge circuit 2, and the H-bridge circuit 2 is separately connected MCU1 and hollow-cup motor 6, the drag cup electricity
Machine 6 connects MCU1 by encoder 5.
In the present invention, H-bridge circuit 2 includes triode A1b, triode B2b, triode C3b and triode D4b, and described three
Pole pipe A1b base stage connects the one end resistance A1a, emitter ground connection, and collector is separately connected the one end resistance C3a and field effect transistor
The pole A1cG, the triode B2b base stage connect the one end resistance B2a, emitter ground connection, collector be separately connected the one end resistance D4a,
The pole field effect transistor B2cG connects capacitor A1e, the field effect transistor between the triode B2b collector and emitter
The pole pipe A1cD is separately connected the pole field effect transistor B2cD, the one end resistance J10a and the one end resistance K11a, the field effect transistor
The pole pipe B2cS is grounded by resistance E5a；Triode C3b base stage connects the one end resistance H8a, emitter ground connection, and collector connects respectively
The one end connecting resistance F6a, the pole field effect transistor C3cG, the pole the field effect transistor C3cD are separately connected field effect transistor
The pole D4cD, light emitting diode A1d cathode, light emitting diode B2d anode, the light emitting diode A1d anode connect resistance J10a
The other end, the light emitting diode B2d cathode connect the resistance K11a other end, and the pole the field effect transistor D4cS connects field effect
The pole transistor B2cS is answered, connects capacitor B2c between the triode D4b emitter and collector.The H-bridge circuit that the present invention uses
It can effectively prevent field-effect tube damage, high reliablity when work.
A kind of working principle: hollow-cup motor control method, comprising the following steps:
A, encoder feedback signal feeds back to MCU, and MCU knows accurate commutation position, controls PWM timing；
B, H- bridge circuit provides PWM timing by MCU and switches bridge conducting up and down, make drag cup three-phase coil successively electric rotate
Come, velocity of rotation speed；
C, PWM square wave drive voltage controllable electric power is controlled by MCU, changes voltage controllable electric power output voltage size, output electricity
Press big motor speed fast, conversely, speed is slow.
The present invention realizes motor control by a feedback signal, two PWM controls, and system is simple, easy to accomplish, exploitation
At low cost, debugging range is wide, and adjustable-speed range depends on motor performance from 0V to Vm, and Vm refers to the voltage of motor maximum speed
Value.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of hollow-cup motor control method, it is characterised in that: including MCU(1), H-bridge circuit (2), voltage controllable electric power
(3), system power supply (4) and encoder (5), the system power supply (4) connect MCU(1), the voltage controllable electric power (3) is respectively
Connection MCU(1) and H-bridge circuit (2), the H-bridge circuit (2) be separately connected MCU(1) and hollow-cup motor (6), the drag cup
Motor (6) connects MCU(1 by encoder (5)).
2. a kind of hollow-cup motor control method according to claim 1, it is characterised in that: the H-bridge circuit (2) includes
Triode A (1b), triode B (2b), triode C (3b) and triode D (4b), triode A (1b) base stage connect resistance A
The one end (1a), emitter ground connection, collector are separately connected the one end (3a) resistance C and the pole field effect transistor A (1c) G, and described three
Pole pipe B (2b) base stage connects the one end resistance B (2a), emitter ground connection, and collector is separately connected the one end resistance D (4a), field-effect
The pole transistor B (2c) G connects capacitor A (1e) between triode B (2b) collector and emitter, the field effect transistor
The pole pipe A (1c) D is separately connected the pole field effect transistor B (2c) D, the one end (10a) resistance J and the one end resistance K (11a), the field
The pole (2c) S effect transistor B is grounded by resistance E (5a).
3. a kind of hollow-cup motor control method according to claim 2, it is characterised in that: triode C (3b) base
Pole connects the one end resistance H (8a), emitter ground connection, and collector is separately connected the one end resistance F (6a), field effect transistor C (3c) G
Pole, the pole field effect transistor C (3c) D be separately connected the pole field effect transistor D (4c) D, light emitting diode A (1d) cathode,
Light emitting diode B (2d) anode, described light emitting diode A (1d) anode connection resistance J (10a) other end, the light-emitting diodes
Pipe B (2d) cathode connects resistance K (11a) other end, and the pole (4c) S field effect transistor D connects field effect transistor B (2c)
The pole S connects capacitor B (2c) between triode D (4b) emitter and collector.
4. a kind of hollow-cup motor control method according to claim 1, it is characterised in that: the following steps are included:
A, encoder feedback signal feeds back to MCU, and MCU knows accurate commutation position, controls PWM timing；
B, H- bridge circuit provides PWM timing by MCU and switches bridge conducting up and down, make drag cup three-phase coil successively electric rotate
Come, velocity of rotation speed；
C, PWM square wave drive voltage controllable electric power is controlled by MCU, changes voltage controllable electric power output voltage size, output electricity
Press big motor speed fast, conversely, speed is slow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811616925.3A CN109861593A (en) | 2018-12-28 | 2018-12-28 | A kind of hollow-cup motor control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811616925.3A CN109861593A (en) | 2018-12-28 | 2018-12-28 | A kind of hollow-cup motor control method |
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| Publication Number | Publication Date |
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| CN109861593A true CN109861593A (en) | 2019-06-07 |
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| CN201811616925.3A Pending CN109861593A (en) | 2018-12-28 | 2018-12-28 | A kind of hollow-cup motor control method |
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| CN205901646U (en) * | 2016-08-17 | 2017-01-18 | 佛山市东成西就智能科技有限公司 | Miniwatt drag cup direct current motor control circuit |
| CN207892869U (en) * | 2017-12-22 | 2018-09-21 | 陈振兴 | A kind of small ceiling fan of adjustable speed gentle breeze |
| CN108599558A (en) * | 2018-05-17 | 2018-09-28 | 合肥威迪变色玻璃有限公司 | Control circuit based on low pressure H bridges |
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| CN102006010A (en) * | 2010-12-23 | 2011-04-06 | 湖南科技大学 | Variable frequency driving control method and device for high-power mine hoist |
| CN102064561A (en) * | 2011-01-14 | 2011-05-18 | 华北电力大学（保定） | Permanent magnetic motor-type elastic energy storage power generation system |
| CN102564503A (en) * | 2011-12-14 | 2012-07-11 | 浙江工业大学 | Excitation mode capable of improving measuring precision of electromagnetic flow meter and excitation circuit of excitation mode |
| CN202599455U (en) * | 2011-12-14 | 2012-12-12 | 浙江工业大学 | Excitation circuit for electromagnetic flowmeter |
| CN103280836A (en) * | 2013-05-23 | 2013-09-04 | 中国科学院电工研究所 | Flywheel energy storage system grid-connected control method and energy storage system thereof |
| CN203708158U (en) * | 2013-12-30 | 2014-07-09 | 湖南信息科学职业学院 | Novel H bridge circuit based on field effect transistor |
| CN203747709U (en) * | 2014-03-31 | 2014-07-30 | 诺鑫（南通）医疗技术有限公司 | Drive device of medical non-contact direct current motor |
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Application publication date: 20190607 |