CN207638584U - Three-phase brushless motor driving circuit - Google Patents
Three-phase brushless motor driving circuit Download PDFInfo
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- CN207638584U CN207638584U CN201721783693.1U CN201721783693U CN207638584U CN 207638584 U CN207638584 U CN 207638584U CN 201721783693 U CN201721783693 U CN 201721783693U CN 207638584 U CN207638584 U CN 207638584U
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- intelligent
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- electrically connected
- microprocessor
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Abstract
The utility model is related to a kind of three-phase brushless motor driving circuits, the intelligent microprocessor of the driving circuit is electrically connected to intelligent power module, intelligent power module is electrically connected in three phase lines of motor, intelligent microprocessor be electrically connected to the connector socket of Hall sensor and and be connected in comparator module, the comparator module other end is electrically connected in three phase lines of brushless motor；Intelligent microprocessor is electrically connected to the centre tap of potentiometer.When turn potentiometer, the driving circuit to six energizations of motor by making motor turn over six unlike signal positions, to which actual motor position signal car following-theory hall sensor signal compares every time for detection, each signal equally illustrates there is Hall, and circuit is driven by having in a manner of Hall automatically；As long as once without Hall or Hall failure, circuit is driven in a manner of no Hall different explanation actual motor position signal car following-theory hall sensor signal automatically.
Description
Technical field
The utility model is related to a kind of motor-drive circuit, more particularly to a kind of three-phase direct-current brushless motor thoughts are noninductive certainly
The driving circuit of dynamic identification.
Background technology
The driving of three-phase direct-current brushless motor is divided into thoughts driving and noninductive driving two ways, otherwise current driving circuit
Suitable for thoughts brushless motor or it is suitable for induction less brush-less motor, is unable to automatic identification thoughts and noninductive motor and drives respectively
It is dynamic, it causes to use upper limitation.
Utility model content
The purpose of this utility model is to provide a kind of driving circuit of energy automatic identification thoughts and noninductive motor.This practicality is new
The drive of any circuit change or switching manipulation is all not necessarily to when the another object of type is to provide a kind of driving thoughts and noninductive motor
Dynamic circuit.
The technical solution of the utility model is the three-phase brushless motor driving circuit, including intelligent microprocessor,
It is characterized in that the intelligent microprocessor is electrically connected to intelligent power module, and intelligent power module is electrically connected to motor
Three phase lines on, the intelligent microprocessor is electrically connected to the connector socket of Hall sensor and and is connected to comparator module
On, the comparator module other end is electrically connected in three phase lines of brushless motor；The comparator module is independently-powered, described
Intelligent microprocessor is electrically connected to the centre tap of potentiometer.
As preferred：The intelligent microprocessor (MCU) is connected to by six roots of sensation electrical wire (AH, AL, BH, BL, CH, CL)
Intelligent power module (IPM) is to control the turn-on sequence of three-phase half-bridge；Intelligent power module (IPM) passes through three electrical wires
(U, V, W) is connected on brushless motor；Intelligent microprocessor (MCU) is also connected to three suddenly by three electrical wires (Ha, Hb, Hc)
The terminals (JP) of your sensor, three electrical wires (Ha, Hb, Hc) are electrically connected to the output of comparator module (CMP)
Port；Three electrical wires (U, V, W) are connected on the input port of comparator module (CMP)；The tune of intelligent microprocessor (MCU)
Quick access mouth connects the centre tap of an adjustable potentiometer (VR) by electrical wire (SW)；DC power anode (5V) connection intelligence
Microprocessor (MCU), intelligent power module (IPM), comparator module (CMP), the terminals (JP) of Hall sensor, adjustable electric
The power supply anode of position device (VR)；DC power cathode (AGND) connect intelligent microprocessor (MCU), intelligent power module (IPM),
The power supply negative terminal of comparator module (CMP), the terminals (JP) of Hall sensor, adjustable potentiometer (VR)；Power power-supply anode
(VCC) the power power-supply input of intelligent power module (IPM) is connect, analog power cathode (PGND) connects intelligent power module (IPM)
Power power-supply.
Compared with prior art, the beneficial effects of the utility model:
Detecting brushless motor by such method, whether there is or not Hall sensors, it is only necessary to six step power-up sequences, motor rotation six
It is secondary to can detect that whether brushless motor has Hall sensor, and can detect that three Hall sensors have fault-free, if without suddenly
Your sensor or Hall sensor failure, then circuit run with noninductive type of drive；If having Hall sensor and hall sensing
Device all fault-frees, then circuit is with the operation of thoughts type of drive.
Description of the drawings
Fig. 1 is the driving circuit block diagram of the noninductive automatic identification of the utility model three-phase direct-current brushless motor thoughts；
Fig. 2 is the circuit diagram of Fig. 1；
Fig. 3 is the embodiment flow chart of the control method of the utility model three-phase brushless motor driving circuit.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing：
It please refers to Fig.1, shown in Fig. 2, the noninductive automatic identification driving circuit of three-phase direct-current brushless motor thoughts, the circuit packet
An intelligent microprocessor (MCU) is included, intelligent microprocessor (MCU) is connect by six roots of sensation electrical wire (AH, AL, BH, BL, CH, CL)
To intelligent power module (IPM) to control the turn-on sequence of three-phase half-bridge；Intelligent power module (IPM) is electrically led by three
Line (U, V, W) is connected on brushless motor；Intelligent microprocessor (MCU) is also connected to three by three electrical wires (Ha, Hb, Hc)
The terminals (JP) of Hall sensor, three electrical wires (Ha, Hb, Hc) are electrically connected to the output end of comparator module (CMP)
Mouthful；Three electrical wires (U, V, W) are connected on the input port of comparator module (CMP)；The speed governing of intelligent microprocessor (MCU)
Interface connects the centre tap of an adjustable potentiometer (VR) by electrical wire (SW)；DC power anode (5V) connection intelligence is micro-
Processor (MCU), intelligent power module (IPM), comparator module (CMP), the terminals (JP) of Hall sensor, adjustable potential
The power supply anode of device (VR)；5V DC power cathodes (AGND) connect intelligent microprocessor (MCU), intelligent power module (IPM),
The power supply negative terminal of comparator module (CMP), the terminals (JP) of Hall sensor, adjustable potentiometer (VR)；Power power-supply anode
(VCC) the power power-supply input of intelligent power module (IPM) is connect, analog power cathode (PGND) connects intelligent power module (IPM)
Power power-supply；The comparator module (CMP) is independently-powered.
It please refers to shown in Fig. 3, the control method of the three-phase brushless motor driving circuit includes the following steps：
(1) when rotating adjustable potentiometer (VR), intelligent microprocessor (MCU) detects startup speed governing by conducting wire (SW)
Signal, motor prepare to start；
(2) intelligent microprocessor (MCU) sends the voltage of setting by six roots of sensation electrical wire (AH, AL, BH, BL, CH, CL)
With energization phase sequence, the position for making intelligent power module (IPM) make motor go to six settings by electrical wire (U, V, W), intelligence
Energy microprocessor (MCU) detects the position signal of six setting positions of motor by Hall sensor terminals (JP), first
UW phases are powered；
(3) detection Ha=1 and Hb=1 and Hc=0, unequal then started with no sensing mode runs, equal, carries out VW and communicates
Electricity；
(4) detection Ha=0 and Hb=1 and Hc=0, unequal then started with no sensing mode runs, equal, carries out VU and communicates
Electricity；
(5) detection Ha=0 and Hb=1 and Hc=1, unequal then started with no sensing mode runs, equal, carries out WU and communicates
Electricity；
(6) detection Ha=0 and Hb=0 and Hc=1, unequal then started with no sensing mode runs, equal, carries out WV and communicates
Electricity；
(7) detection Ha=1 and Hb=0 and Hc=1, unequal then started with no sensing mode runs, equal, carries out UV and communicates
Electricity；
(8) detection Ha=1 and Hb=0 and Hc=0, unequal then started with no sensing mode runs, equal, to there is sensing mode
Start operation.
The six hall position electric signals detected compare with six theory signal correspondences；
(2.1) after UW phases are powered, through delay judgement Ha=1 and Hb=1 and Hc=0；
(3.1) after VW phases are powered, through delay judgement Ha=0 and Hb=1 and Hc=0；
(4.1) after VU phases are powered, through delay judgement Ha=0 and Hb=1 and Hc=1；
(5.1) after WU phases are powered, through delay judgement Ha=0 and Hb=0 and Hc=1；
(6.1) after WV phases are powered, through delay judgement Ha=1 and Hb=0 and Hc=1；
(7.1) after UV phases are powered, through delay judgement Ha=1 and Hb=0 and Hc=0；
The comparison of above-mentioned steps (2.1), step (3.1), step (4.1), step (5.1), step (6.1), step (7.1)
As a result all equal, start operation in a manner of Hall to have, an arbitrary comparison result is unequal, starts fortune in a manner of no Hall
Row.
The above is only the preferred embodiment of the present invention, it is all done according to the utility model claims range it is equal
Deng variation and modification, it should all belong to the covering scope of the utility model claims.
Claims (2)
1. a kind of three-phase brushless motor driving circuit, including intelligent microprocessor, which is characterized in that the intelligent microprocessor electricity
It is connected to intelligent power module, intelligent power module is electrically connected in three phase lines of motor, and the intelligent microprocessor is electrically connected
Be connected to the connector socket of Hall sensor and and be connected in comparator module, the comparator module other end is electrically connected to nothing
In three phase lines of brush motor；The comparator module is independently-powered, and the intelligent microprocessor is electrically connected to the centre of potentiometer
Tap.
2. three-phase brushless motor driving circuit according to claim 1, which is characterized in that the intelligent microprocessor (MCU)
Intelligent power module (IPM) is connected to control leading for three-phase half-bridge by six roots of sensation electrical wire (AH, AL, BH, BL, CH, CL)
Clear and coherent sequence；Intelligent power module (IPM) is connected to by three electrical wires (U, V, W) on brushless motor；Intelligent microprocessor
(MCU) terminals (JP) of three Hall sensors are also connected to by three electrical wires (Ha, Hb, Hc), described three electrical
Conducting wire (Ha, Hb, Hc) is electrically connected to the output port of comparator module (CMP)；Three electrical wires (U, V, W) are connected to comparator
On the input port of module (CMP)；The speed governing interface of intelligent microprocessor (MCU) connects an adjustable electric by electrical wire (SW)
The centre tap of position device (VR)；DC power anode (5V) connects intelligent microprocessor (MCU), intelligent power module (IPM), ratio
Compared with device module (CMP), the power supply anode of the terminals (JP) of Hall sensor, adjustable potentiometer (VR)；DC power cathode
(AGND) connection intelligent microprocessor (MCU), intelligent power module (IPM), comparator module (CMP), Hall sensor connect
The power supply negative terminal of line end (JP), adjustable potentiometer (VR)；Power power-supply anode (VCC) connects the power of intelligent power module (IPM)
Power input, analog power cathode (PGND) is with connecing the power power-supply of intelligent power module (IPM).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721783693.1U CN207638584U (en) | 2017-12-19 | 2017-12-19 | Three-phase brushless motor driving circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721783693.1U CN207638584U (en) | 2017-12-19 | 2017-12-19 | Three-phase brushless motor driving circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207638584U true CN207638584U (en) | 2018-07-20 |
Family
ID=62852216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721783693.1U Active CN207638584U (en) | 2017-12-19 | 2017-12-19 | Three-phase brushless motor driving circuit |
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| Country | Link |
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| CN (1) | CN207638584U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947647A (en) * | 2017-12-19 | 2018-04-20 | 深圳市创科维信电子有限公司 | Three-phase brushless motor drive circuit and its control method |
-
2017
- 2017-12-19 CN CN201721783693.1U patent/CN207638584U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947647A (en) * | 2017-12-19 | 2018-04-20 | 深圳市创科维信电子有限公司 | Three-phase brushless motor drive circuit and its control method |
| CN107947647B (en) * | 2017-12-19 | 2024-03-12 | 深圳市创科维信电子有限公司 | Three-phase brushless motor driving circuit and control method thereof |
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