CN106685274A - Brushless direct current motor control circuit - Google Patents
Brushless direct current motor control circuit Download PDFInfo
- Publication number
- CN106685274A CN106685274A CN201611258198.9A CN201611258198A CN106685274A CN 106685274 A CN106685274 A CN 106685274A CN 201611258198 A CN201611258198 A CN 201611258198A CN 106685274 A CN106685274 A CN 106685274A
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- Prior art keywords
- feet
- circuit
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- logical transition
- connection
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- 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.)
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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
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/08—Arrangements for controlling the speed or torque of a single motor
- H02P6/085—Arrangements for controlling the speed or torque of a single motor in a bridge configuration
Abstract
A brushless direct current motor control circuit comprises a signal collection circuit, a logic switching circuit and a driving circuit. The signal collection circuit employs a first-order low-pass filtering input mode to connect with the logic switching circuit and transmits the position signals HA, HB and HC of a rotor to the logic switching circuit; the logic switching circuit is connected with the driving circuit, the logic switching circuit calculates and outputs six-way independent PWM signals by employing brushless motor control input signals, the braking signals and the position signals of the rotor through an inverter and gate, the six-way independent PWM signals are amplified through the driving circuit, and each two PWM output ports of the TG1 and the TG2, the TG3 and the TG4 and the TG5 and the TG6 outputted by the driving circuit form one group to drive a three-phase power bridge circuit. Compared to the traditional brushless direct current motor control circuit, the brushless direct current motor control circuit is simple in structure, high in precision, good in circuit performance, high in reliability, easy for batch production, low in cost and is widely applied to the civil, industry and military industry fields.
Description
Technical field
The invention belongs to brushless electric machine control field, and in particular to a kind of DC brushless motor and control circuit.
Background technology
Brshless DC motor control is to be widely used now, and it is high that PWM motor controls are even more a kind of convenience, control accuracy
Control technology.The control chip that brushless DC motor control circuit in the market is adopted does not possess professional brushless direct-current mostly
Motor control module, it usually needs move control certainly using what special motor control chip and encoder could realize motor,
This control circuit is complex, needs to build many logic gates to realize motor control, and circuit is more complicated, Er Qieke
It is poor by property.
The content of the invention
The technical problem to be solved is a kind of control of DC brushless motor for shortcoming of the prior art
Circuit-line processed, realizes to DC brushless motor in the case of eliminating motor control chip special on market, encoder
Abnormality detection and control in speed, direction, position, running, simplify the line construction of DC brushless motor, while this
Bright employing bare chip assembling, the full level Hermetic Package of metal straight cutting, with small volume, operating temperature range width, high reliability.
Technical problem to solve the present invention is adopted the following technical scheme that：
A kind of Brush-Less DC motor control circuit, including signal acquisition circuit, logical transition circuit and drive circuit；Signals collecting
Circuit is connected using first-order low-pass ripple input mode with logical transition circuit, and position signalling HA, HB and HC of rotor are transmitted
To logical transition circuit；Logical transition circuit is connected with drive circuit, logical transition circuit by brushless electric machine control input signal,
Brake signal calculates the pwm signal of six tunnel independences of output with the position signalling of rotor through phase inverter and door, six tunnel independences
Pwm signal amplifies through drive circuit, the TG1 and TG2 of drive circuit output, TG3 and TG4, the output of TG5 and TG6 each twos PWM
Port constitutes one group, drives three phase power bridge circuit, then drives DC brushless motor U, V and W ports by three phase power bridge circuit.
The annexation of signal acquisition circuit is as follows：HA input be connected with one end of resistance R1 and R2, the other end of R1 and
Positive supply VCCConnection, the other end of R2 is connected with one end of C1 with E outfans, and the other end of C1 is connected with ground and outfan GND；
HB inputs are connected with one end of resistance R3 and R4, the other end and the positive supply V of R3CCConnection, the other end of R4 and one end of C2 and F
Outfan connects, and the other end of C2 is connected with ground and outfan GND；HC inputs are connected with one end of resistance R5 and R6, and R6's is another
One end and positive supply VCCConnection, the other end of R6 is connected with one end of C3 with G outfans, the other end and ground and the outfan of C3
GND connects.
Logic shifting circuit includes IC2 chips, IC3 chips and IC4 chips, and IC2 chips adopt the CD4069UB six of TI companies
Phase inverter, IC3 chips and IC4 chips adopt the CD4073B and gate circuit of TI companies；Its annexation is as follows：Rotor-position is adopted
Collector E outfans are connected with one end of R7, and the other end of R7 is connected with 3 feet of 1 foot of IC2,2 feet of IC3 and IC3, IC2's
2 feet are connected with 1 foot of IC4 and 3 feet of IC4；Rotor-position Acquisition Circuit F outfan is connected with one end of R8, the other end of R8
12 feet of 3 feet, IC3 and 2 feet of IC4 with IC2 are connected, and 4 feet of IC2 are connected with 13 feet of 1 foot of IC3 and IC4；Rotor-position
Acquisition Circuit G outfan is connected with one end of R9, and the other end of R9 is connected with 5 feet of IC2,4 feet of IC4 and 11 feet, and the 6 of IC2
Foot is connected with 4 feet and 13 feet of IC3；One end of 8 feet of RC control ends and IC3,11 feet of IC3,5 feet of IC4 and R10 is connected；
The other end of R10 and positive supply VCCConnection；Pwm control signal is connected with 12 feet of 4 feet of IC3,8 feet of IC3 and IC4；IC3's
9 feet are connected with output T1；6 feet of IC3 are connected with output T2；10 feet of IC3 are connected with output T3；9 feet of IC4 connect with output T4
Connect；6 feet of IC4 are connected with output T5；10 feet of IC4 are connected with output T6.
Drive circuit annexation is as follows：Logical transition circuit output T1 is connected with 2 feet of IC7, and logical transition circuit is defeated
Go out T4 to be connected with 4 feet of IC7,3 feet of IC7 are connected to ground, 6 feet and the positive power source terminal V of IC7CCConnection, 7 feet of IC7 are defeated with TG1
Go out end connection, 5 feet of IC7 are connected with TG4 outfans；Logical transition circuit output T3 is connected with 2 feet of IC8, logical transition electricity
Road output T6 is connected with 4 feet of IC8, and 3 feet of IC8 are connected to ground, 6 feet and the positive power source terminal V of IC8CCConnection, 7 feet of IC8 with
TG3 outfans connect, and 5 feet of IC8 are connected with TG6 outfans；Logical transition circuit output T5 is connected with 2 feet of IC9, and logic turns
Change circuit output T2 to be connected with 4 feet of IC9,3 feet of IC9 are connected to ground, 6 feet and the positive power source terminal V of IC9CCConnection, 7 feet of IC9
It is connected with TG5 outfans, 5 feet of IC9 are connected with TG2 outfans.
The invention provides a kind of control circuit circuit of DC brushless motor, special motor control on market is eliminated
Realize in the case of coremaking piece, encoder in the speed to DC brushless motor, direction, position, running abnormality detection and
Control, simplifies the line construction of DC brushless motor, while the present invention is assembled using bare chip, with small volume, work temperature
Degree wide ranges, high reliability.Compared with traditional brushless DC motor control circuit, the patent of invention circuit structure letter
Single, high precision, circuit performance is good, and reliability is high, it is easy to produce in enormous quantities, cheap, can be widely applied to it is civilian, industrial with
And military industry field.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is signal acquisition circuit figure of the present invention；
Fig. 3 is logical transition circuit diagram of the present invention；
Fig. 4 is present invention driver circuit schematic diagram.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is described in further detail：
As shown in figure 1, a kind of Brush-Less DC motor control circuit, it is electric that control circuit includes signal acquisition circuit, logical transition
Road and drive circuit；The signal acquisition circuit 3 of described rotor-position is using first-order low-pass ripple input mode and logical transition
Circuit 1 is connected, and the position signalling of rotor is sent into into logical transition circuit 1；Logic shifting circuit 1 is connected with drive circuit 2, and logic turns
Change circuit 1 and the position signalling of control input signal, brake signal and rotor is calculated into six tunnel independences of output through phase inverter and door
PWM Brush-Less DC motor control signals, the pwm signal of six tunnel independences amplifies through drive circuit 2；The output of drive circuit 2
TG1 and TG2, TG3 and TG4, TG5 and TG6 each twos PWM output port constitute one group, drive three phase power bridge circuit, then by three
Phase power bridge drives DC brushless motor U, V and W ports.
As shown in Fig. 2 rotor-position Acquisition Circuit adopts first-order low-pass wave structure, by the position signalling of rotor through turning
Change feeding logical transition circuit.Its annexation is as follows：HA input be connected with one end of resistance R1 and R2, the other end of R1 with just
Power supply VCCConnection, the other end of R2 is connected with one end of C1 with E outfans, and the other end of C1 is connected with ground and outfan GND；HB
Input is connected with one end of resistance R3 and R4, the other end and the positive supply V of R3CCConnection, the other end of R4 is defeated with F with one end of C2
Go out end connection, the other end of C2 is connected with ground and outfan GND；HC inputs are connected with one end of resistance R5 and R6, and R6's is another
End and positive supply VCCConnection, the other end of R6 is connected with one end of C3 with G outfans, the other end and ground and the outfan GND of C3
Connection.
As shown in figure 3, logic shifting circuit IC2 chips adopt CD4069UB hex inverters, IC3 chips and the IC4 of TI companies
Chip adopts the CD4073B and gate circuit of TI companies；Logical transition circuit is by PWM control input signals, brake signal and rotor
Position signalling the PWM Brush-Less DC motor control signals of six tunnel independences of output are calculated through phase inverter and door.Its annexation
It is as follows：Rotor-position Acquisition Circuit E outfan is connected with one end of R7, the other end of R7 and 1 foot of IC2,2 feet of IC3 and 3 feet
It is connected, 2 feet of IC2 are connected with 1 foot of IC4 and 3 feet；Rotor-position Acquisition Circuit F outfan is connected with one end of R8, and R8's is another
One end is connected with 2 feet of 3 feet of IC2,12 feet of IC3 and IC4, and 4 feet of IC2 are connected with 13 feet of 1 foot of IC3 and IC4；Rotor
Station acquisition circuit G outfans are connected with one end of R9, and the other end of R9 is connected with 5 feet of IC2,4 feet of IC4 and 11 feet, IC2
6 feet be connected with 4 feet and 13 feet of IC3；One end of 8 feet of RC control ends and IC3,11 feet of IC3,5 feet of IC4 and R10 connects
Connect；The other end of R10 and positive supply VCCConnection；Pwm control signal is connected with 12 feet of 4 feet of IC3,8 feet of IC3 and IC4；
9 feet of IC3 are connected with output T1；6 feet of IC3 are connected with output T2；10 feet of IC3 are connected with output T3；9 feet of IC4 with it is defeated
Go out T4 connections；6 feet of IC4 are connected with output T5；10 feet of IC4 are connected with output T6.
As shown in figure 4, drive circuit is connected with logical transition circuit, the pwm signal Jing of the tunnel independence of logical transition circuit six
Overdrive circuit amplifies, and the TG1 and TG2 of output, TG3 and TG4, TG5 and TG6 each twos PWM output port constitute one group, drive
Three phase power bridge circuit, then DC brushless motor U, V and W ports are driven by three phase power bridge circuit.Its annexation is as follows：Patrol
Collect change-over circuit output T1 to be connected with 2 feet of IC7, logical transition circuit output T4 is connected with 4 feet of IC7,3 feet and the ground of IC7
Connection, 6 feet and the positive power source terminal V of IC7CCConnection, 7 feet of IC7 are connected with TG1 outfans, and 5 feet and the TG4 outfans of IC7 connect
Connect；Logical transition circuit output T3 is connected with 2 feet of IC8, and logical transition circuit output T6 is connected with 4 feet of IC8,3 feet of IC8
It is connected to ground, 6 feet and the positive power source terminal V of IC8CCConnection, 7 feet of IC8 are connected with TG3 outfans, 5 feet and the TG6 outfans of IC8
Connection；Logical transition circuit output T5 is connected with 2 feet of IC9, and logical transition circuit output T2 is connected with 4 feet of IC9, and the 3 of IC9
Foot is connected to ground, 6 feet and the positive power source terminal V of IC9CCConnection, 7 feet of IC9 are connected with TG5 outfans, and 5 feet and the TG2 of IC9 are exported
End connection.
The operation principle of patent of invention：The circuit includes：Signal acquisition circuit, logical transition circuit and drive circuit；Turn
Sub- station acquisition circuit is connected using first-order low-pass ripple input mode with logical transition circuit, by the position signalling HA of rotor,
HB and HC are transferred to logical transition circuit；Logical transition circuit believes the position of PWM control input signals, brake signal and rotor
The PWM Brush-Less DC motor control signals of six tunnel independences of output, the pwm signal of six tunnel independences number are calculated through phase inverter and door
Each two PWM output port constitutes one group, and the PWM delivery outlets described in three groups are relative with the three-phase voltage of brshless DC motor respectively
Should, when brake signal is high level, motor normal rotation, when brake signal is low level, motor brake.Patent of the present invention
Circuit is designed using multichip IC, thermal design, and reliability design.It is specific as follows：The product casing is selected by drawing outward
The hermetically sealed metal structure of dual-in-line that foot, housing and cover plate are constituted, wherein：Outer pin is gold-plated, housing nickel plating, using parallel seam
Weldering sealing, and the nitrogen charging gas shielded in shell.Interior patches element includes bare chip and other slice components, and internal bare chip is adopted
Gold ball bonding is bonded, and ceramics is Al2O3Ceramic substrate, conduction band and resistance adopt thick film screen typography.
Claims (4)
1. a kind of Brush-Less DC motor control circuit, it is characterised in that：Including signal acquisition circuit, logical transition circuit and driving
Circuit；Signal acquisition circuit is connected using first-order low-pass ripple input mode with logical transition circuit, by the position signalling of rotor
HA, HB and HC are transferred to logical transition circuit；Logical transition circuit is connected with drive circuit, and logical transition circuit is by brushless electric machine
The position signalling of control input signal, brake signal and rotor calculates the PWM letters of six tunnel independences of output through phase inverter and door
Number, the pwm signal of six tunnel independences amplifies through drive circuit, TG1 and TG2, TG3 and TG4, the TG5 and TG6 of drive circuit output
Each two PWM output port constitutes one group, drives three phase power bridge circuit, then drives brush DC electricity by three phase power bridge circuit
Machine U, V and W ports.
2. a kind of Brush-Less DC motor control circuit according to claim 1, it is characterised in that：The company of signal acquisition circuit
Connect relation as follows：HA inputs are connected with one end of resistance R1 and R2, the other end and the positive supply V of R1CCConnection, the other end of R2 with
One end of C1 is connected with E outfans, and the other end of C1 is connected with ground and outfan GND；HB is input into the one end with resistance R3 and R4
Connection, the other end and the positive supply V of R3CCConnection, the other end of R4 is connected with one end of C2 with F outfans, the other end of C2 and
Ground and outfan GND connections；HC inputs are connected with one end of resistance R5 and R6, the other end and the positive supply V of R6CCConnection, R6's
The other end is connected with one end of C3 with G outfans, and the other end of C3 is connected with ground and outfan GND.
3. a kind of Brush-Less DC motor control circuit according to claim 1 and 2, it is characterised in that：Logic shifting circuit bag
IC2 chips, IC3 chips and IC4 chips are included, IC2 chips adopt CD4069UB hex inverters, IC3 chips and the IC4 cores of TI companies
Piece adopts the CD4073B and gate circuit of TI companies；Its annexation is as follows：Rotor-position Acquisition Circuit E outfan and the one of R7
End is connected, and the other end of R7 is connected with 3 feet of 1 foot of IC2,2 feet of IC3 and IC3, and the 3 of 2 feet of IC2 and 1 foot of IC4 and IC4
Foot is connected；Rotor-position Acquisition Circuit F outfan is connected with one end of R8, the other end of R8 and 3 feet of IC2,12 feet of IC3 and
2 feet of IC4 are connected, and 4 feet of IC2 are connected with 13 feet of 1 foot of IC3 and IC4；Rotor-position Acquisition Circuit G outfan is with R9's
One end is connected, and the other end of R9 is connected with 5 feet of IC2,4 feet of IC4 and 11 feet, 6 feet of IC2 and 4 feet of IC3 and 13 foot phases
Even；One end of 8 feet of RC control ends and IC3,11 feet of IC3,5 feet of IC4 and R10 is connected；The other end of R10 and positive supply VCC
Connection；Pwm control signal is connected with 12 feet of 4 feet of IC3,8 feet of IC3 and IC4；9 feet of IC3 are connected with output T1；IC3's
6 feet are connected with output T2；10 feet of IC3 are connected with output T3；9 feet of IC4 are connected with output T4；6 feet of IC4 connect with output T5
Connect；10 feet of IC4 are connected with output T6.
4. a kind of Brush-Less DC motor control circuit according to claim 3, it is characterised in that：Drive circuit annexation
It is as follows：Logical transition circuit output T1 is connected with 2 feet of IC7, and logical transition circuit output T4 is connected with 4 feet of IC7, and the 3 of IC7
Foot is connected to ground, 6 feet and the positive power source terminal V of IC7CCConnection, 7 feet of IC7 are connected with TG1 outfans, and 5 feet and the TG4 of IC7 are exported
End connection；Logical transition circuit output T3 is connected with 2 feet of IC8, and logical transition circuit output T6 is connected with 4 feet of IC8, IC8
3 feet be connected to ground, 6 feet of IC8 and positive power source terminal VCCConnection, 7 feet of IC8 are connected with TG3 outfans, 5 feet of IC8 and TG6
Outfan connects；Logical transition circuit output T5 is connected with 2 feet of IC9, and logical transition circuit output T2 is connected with 4 feet of IC9,
3 feet of IC9 are connected to ground, 6 feet and the positive power source terminal V of IC9CCConnection, 7 feet of IC9 are connected with TG5 outfans, 5 feet of IC9 and
TG2 outfans connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611258198.9A CN106685274A (en) | 2016-12-30 | 2016-12-30 | Brushless direct current motor control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611258198.9A CN106685274A (en) | 2016-12-30 | 2016-12-30 | Brushless direct current motor control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106685274A true CN106685274A (en) | 2017-05-17 |
Family
ID=58872536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611258198.9A Pending CN106685274A (en) | 2016-12-30 | 2016-12-30 | Brushless direct current motor control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106685274A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107390574A (en) * | 2017-07-06 | 2017-11-24 | 浙江工业大学 | A kind of controllable mechanical shutter light-baffling device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030052629A1 (en) * | 2001-09-14 | 2003-03-20 | Hsieh Hsin-Mao | Control circuit for a DC brushless motor |
| US20090058336A1 (en) * | 2007-08-29 | 2009-03-05 | Renesas Technology Corp. | Motor driving device |
| CN102142802A (en) * | 2011-03-22 | 2011-08-03 | 北京航天控制仪器研究所 | Servo driving system of linear direct-current brushless motor |
| CN104467560A (en) * | 2014-12-04 | 2015-03-25 | 洛阳市黄河软轴控制器股份有限公司 | Brushless direct current motor control circuit |
-
2016
- 2016-12-30 CN CN201611258198.9A patent/CN106685274A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030052629A1 (en) * | 2001-09-14 | 2003-03-20 | Hsieh Hsin-Mao | Control circuit for a DC brushless motor |
| US20090058336A1 (en) * | 2007-08-29 | 2009-03-05 | Renesas Technology Corp. | Motor driving device |
| CN102142802A (en) * | 2011-03-22 | 2011-08-03 | 北京航天控制仪器研究所 | Servo driving system of linear direct-current brushless motor |
| CN104467560A (en) * | 2014-12-04 | 2015-03-25 | 洛阳市黄河软轴控制器股份有限公司 | Brushless direct current motor control circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107390574A (en) * | 2017-07-06 | 2017-11-24 | 浙江工业大学 | A kind of controllable mechanical shutter light-baffling device |
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Application publication date: 20170517 |