CN205111026U - Send silk quick -witted drive and control circuit - Google Patents
Send silk quick -witted drive and control circuit Download PDFInfo
- Publication number
- CN205111026U CN205111026U CN201520839469.4U CN201520839469U CN205111026U CN 205111026 U CN205111026 U CN 205111026U CN 201520839469 U CN201520839469 U CN 201520839469U CN 205111026 U CN205111026 U CN 205111026U
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- Prior art keywords
- module
- fet
- wire
- feed motor
- control circuit
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- 238000002955 isolation Methods 0.000 claims abstract description 17
- 230000000694 effects Effects 0.000 claims abstract description 5
- 239000003381 stabilizer Substances 0.000 claims description 12
- 230000005669 field effect Effects 0.000 abstract 5
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Landscapes
- Control Of Electric Motors In General (AREA)
- Control Of Direct Current Motors (AREA)
Abstract
The utility model relates to a send silk quick -witted drive and control circuit. A send silk quick -witted drive and control circuit, includes: host system for output PWM control signal, driving isolation module and host system connect for improve PWM control signal's driving force and play signal isolation's effect, and drive module and the connection of driving isolation module for outlet driving signal, drive module include a driver chip, the 2nd driver chip, and H bridge drive circuit, and H bridge drive circuit includes firstly to fourth field effect transistor, and a driver chip connects a field effect transistor and the 2nd field effect transistor, the 2nd driver chip connects the 3rd field effect transistor and fourth field effect transistor. Above -mentioned send silk quick -witted drive and control circuit, through the H bridge drive circuit that ARM chip and driver chip constitute, realization back suction function, the silk machine is sent in control to this drive circuit is simple, succinct, and the cost is lower.
Description
Technical field
The utility model relates to welding technology field, particularly relates to the control circuit of wire-feed motor.
Background technology
Along with the development of solder technology, the importance of wire-feed motor in gas-shielded welder is more and more significant.Traditional wire-feed motor only has wire feed function mostly, and does not have back suction (reversion) function, when needing wire tray to move back silk, needs manual operation.But when some special weld job (such as welding aluminium), need the function of the back suction using wire-feed motor.
Usually the wire-feed motor drive circuit with back suction function used or circuit complexity at present, otherwise cost is higher.
Utility model content
Based on this, be necessary, for the high problem of the complicated cost of control circuit for wire feeder circuit, to provide a kind of wire-feed motor Drive and Control Circuit.
A kind of wire-feed motor Drive and Control Circuit, comprising:
Main control module, for exporting pwm control signal;
Driving isolation module, is connected with described main control module, for improve described pwm control signal driving force and play signal isolation effect; And
Driver module, with described driving isolation model calling, for output drive signal, described driver module comprises the first driving chip, the second driving chip, and H-bridge drive circuit, described H-bridge drive circuit comprises first to fourth FET, and described first driving chip connects described first FET and described second FET; Described second driving chip connects described 3rd FET and described 4th FET.
Wherein in an embodiment, described main control module comprises ARM chip, and described ARM chip exports four road PWM drive singal.
Wherein in an embodiment, described driver module also comprises first to fourth resistance, and first to fourth diode, described first resistance to the 4th resistance respectively with described first to fourth diodes in parallel, the positive pole of described first to fourth diode connects the grid of described first to fourth FET respectively; The negative pole of described first to fourth diode inputs described PWM drive singal respectively.
Wherein in an embodiment, described driver module also comprises the 5th to the 8th resistance, and first to fourth voltage-stabiliser tube, described 5th to the 8th resistance is in parallel with described first to fourth voltage-stabiliser tube respectively, the positive pole of described first to fourth voltage-stabiliser tube is connected with the source electrode of described first to fourth FET respectively, and the negative pole of described first to fourth voltage-stabiliser tube is connected with the grid of described first to fourth FET respectively.
Wherein in an embodiment, described first driving chip and described second driving chip are IR2110S chip.
Wherein in an embodiment, described driver module also comprises the first electric capacity and the second electric capacity, 5th diode and the 6th diode, described first electric capacity and described 5th diodes in parallel, the positive pole of described 5th diode connects the VS port of described first driving chip, and input supply voltage, the negative pole input supply voltage of described 5th diode, and connect the VB port of described first driving chip.
Wherein in an embodiment, described driver module also comprises indicating circuit, described indicating circuit comprises the first Light-Emitting Diode, the second light emitting diode and the 9th resistance, after described first light emitting diode and described second light emitting diode reverse parallel connection and described 9th resistant series, described indicating circuit is connected in parallel on the output of described driver module.
Wherein in an embodiment, also comprise voltage feedback module, the input of described voltage feedback module connects the output of described driver module, and the output of described Voltage Feedback connects described main control module.
Wherein in an embodiment, also comprise current feedback module, the input of described current feedback module connects the output of described driver module, and the output of described current feedback connects described main control module.
Wherein in an embodiment, it is characterized in that, described first to fourth FET is N-channel MOS FET.
Above-mentioned wire-feed motor Drive and Control Circuit, the H-bridge drive circuit consisted of ARM chip and driving chip, realizes back suction function, controls wire-feed motor, and this wire-feed motor drive circuit is simple, succinct, and cost is lower.
Accompanying drawing explanation
Fig. 1 is the schematic block diagram of the wire-feed motor Drive and Control Circuit of an embodiment;
Fig. 2 is the circuit diagram of the wire-feed motor Drive and Control Circuit of an embodiment;
Fig. 3 is the circuit diagram of middle driver module embodiment illustrated in fig. 2.
Detailed description of the invention
For enabling above-mentioned purpose of the present utility model, feature and advantage become apparent more, are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.
Referring to Fig. 1, is the schematic block diagram of the wire-feed motor Drive and Control Circuit of an embodiment.As shown in the figure, wire-feed motor Drive and Control Circuit comprises main control module 100, for exporting pwm control signal.Driving isolation module 200, is connected with main control module 100, for driving and isolation and amplifier pwm control signal.Driver module 300, is connected with driving isolation module 200, for output drive signal.Voltage feedback module 400 can also be comprised, the input of this voltage feedback module 400 connects the output of driver module 300, output connects main control module 100, for feeding back the output voltage of driver module 300, realizing PID (PID) and controlling.Can also comprise current feedback module 500, the input of this current feedback module 500 connects the output of driver module 300, and output connects main control module 100, for feeding back the output current of driver module 300, realizes overcurrent protection.
Refer to Fig. 2 and Fig. 3, be respectively the circuit diagram of wire-feed motor Drive and Control Circuit and the circuit diagram of driver module of an embodiment.As shown in the figure, main control module 100 comprises ARM chip, and this ARM chip exports four road PWM drive singal PWM_H
1, PWM_L
1, PWM_H
2and PWM_L
2, through the isolation drive of driving isolation module 200, for driving and controlling driver module 300.This ARM chip also comprises pressure feedback port UFB and current feedback terminal IFB simultaneously.Pressure feedback port UFB connects voltage feedback module 400, and current feedback terminal IFB connects current feedback module 500.This ARM chip adjusts the dutycycle of pwm control signal by the feedback voltage detecting pressure feedback port UFB, thus regulated output voltage.And by detecting the feedback current of current feedback terminal IFB, carrying out overcurrent protection, when wire-feed motor loop works electric current is excessive, closing pwm control signal.Such main control module 100 can realize carrying out PID arithmetic by voltage feedback signal and realizing overcurrent protection by overcurrent feedback signal simultaneously; thus make the integrated level of circuit high, compact conformation, the voltage stabilization exported can be guaranteed simultaneously; keep stable wire-feed motor rotating speed, improve welding effect.
Driving isolation module 200 can also comprise the 3rd driving chip IC
3, four road pwm control signal PWM_H of the ARM chip output of main control module 100
1, PWM_L
1, PWM_H
2and PWM_L
2the 3rd driving chip IC is received respectively by pull down resistor
3on, pull down resistor can be guaranteed to be in off state at the initial power up phase driver module 300 of system.Wherein the 3rd driving chip IC
3can being three-state data buffer, for improving the driving force of the four road pwm control signals that ARM chip exports, and playing the effect of signal isolation.Further, the 3rd driving chip can be SN74HC244DW.
Driver module 300 comprises the first driving chip IC
1, the second driving chip IC
2, and H-bridge drive circuit 310, this H-bridge drive circuit 310 comprises first to fourth FET Q
1~ Q
4, the first driving chip IC
1connect the first FET Q
1with the second FET Q
2.Second driving chip IC
2connect the 3rd FET Q
3with the 4th FET Q
4.Four road pwm control signal PWM_H
1, PWM_L
1, PWM_H
2and PWM_L
2drive respectively and control the first driving chip IC
1with the second driving chip IC
2, and then drive and control first to fourth FET Q
1~ Q
4.Realize each driving chip like this and drive two FETs respectively, make drive circuit compact, succinctly.In the present embodiment, this first driving chip IC
1with the second driving chip IC
2iR2110S chip can be.
Driver module 300 can also comprise first to fourth resistance R
1~ R
4, and first to fourth diode D
1~ D
4, the first electricity is to the 4th resistance R
1~ R
4respectively with first to fourth diode D
1~ D
4parallel connection, first to fourth diode D
1~ D
4positive pole connect first to fourth FET Q respectively
1~ Q
4grid.This first to fourth diode D
1~ D
4negative pole input PWM drive singal respectively.This PWM drive singal is produced by main control module 100, exports after driving isolation module 200.Jointly limited the grid current signal of FET by resistance and diode, thus the overstress of wire-feed motor Drive and Control Circuit output drive singal can be suppressed.
Driver module 300 can also comprise the 5th to the 8th resistance R
5~ R
8, and first to fourth voltage-stabiliser tube ZD
1~ ZD
4, the 5th to the 8th resistance R
5~ R
8respectively with first to fourth voltage-stabiliser tube ZD
1~ ZD
4parallel connection, first to fourth voltage-stabiliser tube ZD
1~ ZD
4positive pole respectively with first to fourth FET Q
1~ Q
4source electrode connect, first to fourth voltage-stabiliser tube ZD
1~ ZD
4negative pole respectively with first to fourth FET Q
1~ Q
4grid connect.FET Q can be ensured like this
1~ Q
4during conducting, the voltage difference between grid and source electrode controls, in certain voltage range, to be such as not more than 15V.
This driver module 300 can also comprise the first electric capacity C
1with the second electric capacity C
2, the 5th diode D
5with the 6th diode D
6, this first electric capacity C
1with the 5th diode D
5parallel connection, the 5th diode D
5positive pole connect the first driving chip IC
1vS port, input high-end floating power supply offset voltage, and through resistance input supply voltage, such as+a 15V, the 5th diode D
5negative pole input supply voltage VM, connect the first driving chip IC
1vB port, input high-end floating supply voltage.Like this, the bootstrap charge circuit of chip can be realized, eliminate power supply circuits, make integrated circuit more succinct and compact.
This driver module 300 can also comprise indicating circuit 320, and indicating circuit 320 comprises the first Light-Emitting Diode LED
1, the second LED
2with the 9th resistance R
9, the first LED
1with the second LED
2with described 9th resistance R after reverse parallel connection
9series connection, this indicating circuit 320 is connected in parallel on the output of driver module 300, is used to indicate the duty of wire-feed motor.When wire-feed motor rotates forward, LED
1bright, when wire-feed motor is reversed, LED
2bright.Make the duty of wire-feed motor very clear, handled easily.
This wire-feed motor drived control drive circuit, as required, can distribute the function of four road pwm control signals, such as specifies: as FET Q
2with FET Q
3conducting and PWM_H
1and PWM_L
2when being high level, export positive voltage, wire-feed motor rotates forward; As FET Q
1with FET Q
4conducting and PWM_H
2and PWM_L
1when being high level, export negative voltage, wire-feed motor is reversed; As FET Q
3with FET Q
4conducting and PWM_L
1and PWM_L
2when being high level, wire-feed motor two ends are ground connection simultaneously, and wire-feed motor is braked.Wherein FET Q
1with FET Q
2for realizing the speed governing of wire-feed motor, FET Q
3with FET Q
4for turning on and off, do not participate in the modulation of pwm control signal.Certainly, also different control methods can be set.
Voltage feedback module 400 can also comprise the first difference ratio circuit 410 and filter circuit 420, this the first difference ratio circuit 410 is connected successively with filter circuit 420, the output voltage of the input input queued switches module 300 of the first difference ratio circuit 410, this output voltage is after the first difference ratio circuit 410 exports, then the UFB of the ARM chip inputting main control module 100 through filter circuit 420 holds.ARM chip adjusts the dutycycle of pwm control signal by the feedback voltage detecting pressure feedback port UFB, thus regulated output voltage.
Current feedback module 500 can also comprise sample circuit 510, second difference ratio circuit 520 and filter circuit 530, this sample circuit 510 is connected successively with the second difference ratio circuit 520, sample circuit 510 is connected in the output major loop of driver module 300, the output end voltage of sample circuit 520, through the second difference ratio circuit 520, then circuit 530 inputs the IFB end of the ARM chip of main control module 100 after filtering.ARM chip, by the feedback current of testing circuit feedback end IFB, carries out overcurrent protection, when wire-feed motor loop works electric current is excessive, closes pwm control signal.
Wherein in an embodiment, the first driving chip and the second driving chip are IR2110S, and its operating frequency is high, fast response time.
Wherein in an embodiment, first to fourth FET is N-channel MOS FET, with low cost.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this description is recorded.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (10)
1. a wire-feed motor Drive and Control Circuit, comprising:
Main control module, for exporting pwm control signal;
Driving isolation module, is connected with described main control module, for improve described pwm control signal driving force and play signal isolation effect; And
Driver module, with described driving isolation model calling, for output drive signal, it is characterized in that, described driver module comprises the first driving chip, the second driving chip, and H-bridge drive circuit, described H-bridge drive circuit comprises first to fourth FET, and described first driving chip connects described first FET and described second FET; Described second driving chip connects described 3rd FET and described 4th FET.
2. wire-feed motor Drive and Control Circuit according to claim 1, is characterized in that, described main control module comprises ARM chip, and described ARM chip exports four road PWM drive singal.
3. wire-feed motor Drive and Control Circuit according to claim 2, it is characterized in that, described driver module also comprises first to fourth resistance, and first to fourth diode, described first resistance to the 4th resistance respectively with described first to fourth diodes in parallel, the positive pole of described first to fourth diode connects the grid of described first to fourth FET respectively; The negative pole of described first to fourth diode inputs described PWM drive singal respectively.
4. wire-feed motor Drive and Control Circuit according to claim 3, it is characterized in that, described driver module also comprises the 5th to the 8th resistance, and first to fourth voltage-stabiliser tube, described 5th to the 8th resistance is in parallel with described first to fourth voltage-stabiliser tube respectively, the positive pole of described first to fourth voltage-stabiliser tube is connected with the source electrode of described first to fourth FET respectively, and the negative pole of described first to fourth voltage-stabiliser tube is connected with the grid of described first to fourth FET respectively.
5. wire-feed motor Drive and Control Circuit according to claim 1, is characterized in that, described first driving chip and described second driving chip are IR2110S chip.
6. wire-feed motor Drive and Control Circuit according to claim 5, it is characterized in that, described driver module also comprises the first electric capacity and the second electric capacity, 5th diode and the 6th diode, described first electric capacity and described 5th diodes in parallel, the positive pole of described 5th diode connects the VS port of described first driving chip, and input supply voltage, the negative pole input supply voltage of described 5th diode, and connect the VB port of described first driving chip.
7. wire-feed motor Drive and Control Circuit according to claim 1, it is characterized in that, described driver module also comprises indicating circuit, described indicating circuit comprises the first Light-Emitting Diode, the second light emitting diode and the 9th resistance, after described first light emitting diode and described second light emitting diode reverse parallel connection and described 9th resistant series, described indicating circuit is connected in parallel on the output of described driver module.
8. wire-feed motor Drive and Control Circuit according to claim 2, it is characterized in that, also comprise voltage feedback module, the input of described voltage feedback module connects the output of described driver module, and the output of described voltage feedback module connects described main control module.
9. wire-feed motor Drive and Control Circuit according to claim 2, is characterized in that, also comprises current feedback module, and the input of described current feedback module connects the output of described driver module, and the output of described current feedback connects described main control module.
10. the wire-feed motor Drive and Control Circuit according to claim 1 to 9 any one, is characterized in that, described first to fourth FET is N-channel MOS FET.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520839469.4U CN205111026U (en) | 2015-10-27 | 2015-10-27 | Send silk quick -witted drive and control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520839469.4U CN205111026U (en) | 2015-10-27 | 2015-10-27 | Send silk quick -witted drive and control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205111026U true CN205111026U (en) | 2016-03-30 |
Family
ID=55566674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520839469.4U Expired - Fee Related CN205111026U (en) | 2015-10-27 | 2015-10-27 | Send silk quick -witted drive and control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205111026U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712606A (en) * | 2016-11-29 | 2017-05-24 | 株洲麦格米特电气有限责任公司 | Control method for wire feeder speed regulation system |
| CN108971705A (en) * | 2017-06-01 | 2018-12-11 | 廊坊优尼珀焊接设备有限公司 | Automatic wire feeder |
-
2015
- 2015-10-27 CN CN201520839469.4U patent/CN205111026U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712606A (en) * | 2016-11-29 | 2017-05-24 | 株洲麦格米特电气有限责任公司 | Control method for wire feeder speed regulation system |
| CN108971705A (en) * | 2017-06-01 | 2018-12-11 | 廊坊优尼珀焊接设备有限公司 | Automatic wire feeder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160330 |