CN202309582U - Shooting arm driving circuit for shooting robot - Google Patents
Shooting arm driving circuit for shooting robot Download PDFInfo
- Publication number
- CN202309582U CN202309582U CN2011204718696U CN201120471869U CN202309582U CN 202309582 U CN202309582 U CN 202309582U CN 2011204718696 U CN2011204718696 U CN 2011204718696U CN 201120471869 U CN201120471869 U CN 201120471869U CN 202309582 U CN202309582 U CN 202309582U
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- switching circuit
- negative pole
- control end
- circuit
- shooting
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Abstract
The utility model relates to a shooting arm driving circuit for a shooting robot, which is provided with a bridge type structure formed by four switching circuits with a same circuit structure and same corresponding element parameters, wherein each switching circuit employs two NPN transistors to form an amplification circuit, one optical coupler to isolate control signals from a driving power supply, and one freewheel diode to form a protective circuit. The shooting arm driving circuit for a shooting robot employs the optical coupler to effectively isolate the control signals from a driving voltage, and the transistors of different models are selected according to the power of the DC motor to be driven, thereby satisfying different driving power demands; and the output signal output by a single-chip microcomputer can be used for directly controlling the DC motor with greater power. The shooting arm driving circuit can drive the clockwise and anticlockwise rotation of the DC motor, and also can perform speed regulation control on the motor in a pulse width modulation (PWM) mode.
Description
Affiliated technical field
The utility model relates to a kind of electronic installation, the robot ejection arm drive circuit of especially shooting.
Background technology
At present, drive direct current machine and realize that the integrated circuit modules of rotating has a lot, but its most of drive currents and power output are very limited.Driving shooting robot ejection arm needs bigger moment of torsion, and the electric current of drive motors is also bigger, and existing driver module is difficult to satisfy the demand.
Summary of the invention
For addressing the above problem; Invent a kind of shooting robot ejection arm drive circuit; It is characterized in that: shooting robot ejection arm drive circuit is the bridge architecture that is made up of switching circuit a, switching circuit b, switching circuit c and switching circuit d; Each switching circuit has control end and output; Control end has the anodal and control end negative pole of a control end, and output has an output head anode and a negative pole of output end, and the output head anode of switching circuit a and switching circuit b links to each other and is connected to the driving power positive pole; The negative pole of output end of switching circuit c and switching circuit d links to each other and is connected to the driving power negative pole; The output head anode of the negative pole of output end of switching circuit a and switching circuit c links to each other and is connected to the direct current machine positive pole, and the output head anode of the negative pole of output end of switching circuit b and switching circuit d links to each other and is connected to the direct current machine negative pole, the anodal control pin B that is connected with the control end negative pole of switching circuit b of the control end of switching circuit a; Anodal linking to each other with the control end negative pole of switching circuit d of the control end of switching circuit c is connected to a current-limiting resistance; The other end of current-limiting resistance connects control pin A, and the control end negative pole of switching circuit a is connected with the control end of switching circuit d is anodal, and the control end of switching circuit b is anodal to be connected with the control end negative pole of switching circuit c.
Switching circuit a, switching circuit b, switching circuit c are identical with the circuit structure of switching circuit d, and the parameter of counter element is also identical.
Switching circuit is made up of a NPN type one-level triode, a NPN type diode & transistor, a triode formula optocoupler, a resistance and a fly-wheel diode; The positive pole of the light-emitting diode in the optocoupler is anodal as the control end of switching circuit; The negative pole of the light-emitting diode in the optocoupler is as the control end negative pole of switching circuit; The collector electrode of the phototriode in the optocoupler connects a resistance; The collector electrode of the other end of resistance and one-level triode, diode & transistor and the negative pole of fly-wheel diode be the output head anode of downlink connection switching circuit mutually; The emitter of the phototriode in the optocoupler connects the base stage of one-level triode, and the emitter of one-level triode connects the base stage of diode & transistor, the negative pole of output end of the anodal switching circuit of downlink connection mutually of the emitter of diode & transistor and fly-wheel diode.
The utility model adopts optocoupler that control signal and driving voltage have been carried out effective isolation; Can select the triode of different model according to the difference of the direct current machine power that is driven for use; Thereby satisfy the needs of different driving power, can directly control more powerful direct current machine by the output signal of single-chip microcomputer.The utility model can also carry out speed regulating control to motor by the PWM pulse width modulation mode except that driving the DC motor positive and negative rotation.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Accompanying drawing is the circuit diagram of present embodiment;
1 optocoupler a among the figure, 2 triode a, 3 resistance a, 4 large power triode a, 5 fly-wheel diode a, 6 direct current machines; 7 fly-wheel diode b, 8 large power triode b, 9 resistance b, 10 triode b, 11 optocoupler b, 12 current-limiting resistances; 13 control pin A, 14 control pin B, 15 optocoupler d, 16 resistance d, 17 triode d, 18 large power triode d; 19 fly-wheel diode d, 20 fly-wheel diode c, 21 large power triode c, 22 triode c, 23 resistance c, 24 optocoupler c; 25 driving power negative terminals, 26 driving power positive terminals, a switching circuit a, b switching circuit b, c switching circuit c, d switching circuit d.
Embodiment
Shooting robot ejection arm drive circuit is the bridge architecture that is made up of four also identical switching circuit a, b, c and d of structure parameter identical, counter element; Be that example is described its circuit structure with switching circuit a below; The positive pole of the light-emitting diode among the optocoupler a1 is anodal as the control end of switching circuit, and the negative pole of the light-emitting diode of optocoupler a1 is as the control end negative pole of switching circuit.The collector electrode of the phototriode among the optocoupler a1 connects resistance a3; The collector electrode of the other end of resistance a3 and triode a2, large power triode a4 and the negative pole of fly-wheel diode a5 be the output head anode of downlink connection switching circuit a mutually; The emitter of the phototriode among the optocoupler a1 connects the base stage of triode a2; The emitter of triode a2 connects the base stage of large power triode a4, the negative pole of output end of the anodal switching circuit of the downlink connection mutually a of the emitter of large power triode a4 and fly-wheel diode a5.
The output head anode of switching circuit a and switching circuit b links to each other and is connected to driving power positive terminal 26; The negative pole of output end of switching circuit c and switching circuit d links to each other and is connected to driving power negative terminal 25; The output head anode of the negative pole of output end of switching circuit a and switching circuit c links to each other and is connected to the positive pole of direct current machine 6; The output head anode of the negative pole of output end of switching circuit b and switching circuit d links to each other and is connected to the negative pole of direct current machine 6; The anodal control pin B14 that is connected with the control end negative pole of switching circuit b of the control end of switching circuit a; The anodal control pin A13 that is connected with the control end negative pole of switching circuit d of the control end of switching circuit c, the control end negative pole of switching circuit a is connected with the control end of switching circuit d is anodal, and the control end of switching circuit b is anodal to be connected with the control end negative pole of switching circuit c.
The operation principle of shooting robot ejection arm drive circuit is as follows: on driving power positive terminal 26, connect the driving voltage positive pole; Connect the driving voltage negative pole at driving power negative terminal 25; Unsettled with control pin B14 or import current potential when identical as control pin A13; The light-emitting diode of optocoupler a1, optocoupler b11, optocoupler c24 and optocoupler d15 is all not luminous; All not conductings of phototriode in four optocouplers; The base stage of triode a2, triode b10, triode c22 and triode d17 does not have bias voltage can not conducting; The base stage of large power triode a4, large power triode b8, large power triode c21 and large power triode d18 does not have bias voltage can not conducting, and fly-wheel diode a5, fly-wheel diode b7, fly-wheel diode c20 and fly-wheel diode d19 all oppositely install, and direct current machine 6 can not get voltage and do not rotate this moment.
A13 is an electronegative potential when the control pin; When control pin B14 is high potential; The light-emitting diode conducting of optocoupler a1 and optocoupler d15 is luminous; The phototriode conducting of optocoupler a1 and optocoupler d15, triode a2 and triode d17 obtain the bias voltage conducting, and the base stage of large power triode a4 and large power triode d18 obtains also conducting of bias voltage; Drive current flows to driving power negative terminal 25 by positive source binding post 26 through large power triode a4, direct current machine 6 and large power triode d18, and direct current machine 6 is rotated in the forward.This moment, optocoupler b11 and optocoupler c24 were not luminous, so large power triode b8 and not conducting of large power triode c21.
A13 is a high potential when the control pin; When control pin B14 is electronegative potential; The light-emitting diode conducting of optocoupler b11 and optocoupler c24 is luminous; The phototriode conducting of optocoupler b11 and optocoupler c24, triode b10 and triode c22 obtain the bias voltage conducting, and the base stage of large power triode b8 and large power triode c21 obtains also conducting of bias voltage; Drive current flows to driving power negative terminal 25 by positive source binding post 26 through large power triode b8, direct current machine 6 and large power triode c21, direct current machine 6 reverse rotations.This moment, optocoupler a1 and optocoupler d15 were not luminous, so large power triode a4 and not conducting of large power triode d18.
In direct current machine 6 is rotated in the forward during sudden power; Can produce higher reverse induction voltage between the positive and negative electrode of direct current machine 6; This moment fly-wheel diode a5 and fly-wheel diode d19 conducting; Make between the collector and emitter of large power triode a4 and large power triode d18 and can not produce excessive potential difference, thereby play the effect of protection switch circuit a and switching circuit b.When in direct current machine 6 reverse rotations during sudden power, but same principle fly-wheel diode b7 and fly-wheel diode c20 protection switch circuit b and switching circuit c.
Control signal can be the continuous voltage signal, and this moment, direct current machine 6 was with maximum speed work; Control signal also can be the PWM pulse-width signal, and this moment, direct current machine 6 was with lower different rotating speeds work;
Claims (3)
1. shooting robot ejection arm drive circuit; It is characterized in that: shooting robot ejection arm drive circuit is the bridge architecture that is made up of switching circuit a, switching circuit b, switching circuit c and switching circuit d; Each said switching circuit has control end and output; Said control end has the anodal and control end negative pole of a control end; Said output has an output head anode and a negative pole of output end; The output head anode of said switching circuit a and said switching circuit b links to each other and is connected to the driving power positive pole; The negative pole of output end of said switching circuit c and said switching circuit d links to each other and is connected to the driving power negative pole; The output head anode of the negative pole of output end of said switching circuit a and said switching circuit c links to each other and is connected to the direct current machine positive pole, and the output head anode of the negative pole of output end of said switching circuit b and said switching circuit d links to each other and is connected to said direct current machine negative pole, the anodal control pin B that is connected with the control end negative pole of said switching circuit b of the control end of said switching circuit a; Anodal linking to each other with the control end negative pole of said switching circuit d of the control end of said switching circuit c is connected to a current-limiting resistance; The other end of said current-limiting resistance connects control pin A, and the control end negative pole of said switching circuit a is connected with the control end of said switching circuit d is anodal, and the control end of said switching circuit b is anodal to be connected with the control end negative pole of said switching circuit c.
2. shooting according to claim 1 robot ejection arm drive circuit, said switching circuit a, said switching circuit b, said switching circuit c are identical with the circuit structure of said switching circuit d, and the parameter of counter element is also identical.
3. according to the said shooting of claim 1 robot ejection arm drive circuit; Said switching circuit is made up of a NPN type one-level triode, a NPN type diode & transistor, a triode formula optocoupler, a resistance and a fly-wheel diode; The positive pole of the light-emitting diode in the said optocoupler is anodal as the control end of said switching circuit; The negative pole of the light-emitting diode in the said optocoupler is as the control end negative pole of said switching circuit; The collector electrode of the phototriode in the said optocoupler connects a resistance; The collector electrode of the other end of said resistance and said one-level triode, said diode & transistor and the negative pole of said fly-wheel diode be the output head anode of the said switching circuit of downlink connection mutually; The emitter of the phototriode in the said optocoupler connects the base stage of said one-level triode; The emitter of said one-level triode connects the base stage of said diode & transistor, the negative pole of output end of the said switching circuit of anodal downlink connection mutually of the emitter of said diode & transistor and said fly-wheel diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204718696U CN202309582U (en) | 2011-11-14 | 2011-11-14 | Shooting arm driving circuit for shooting robot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204718696U CN202309582U (en) | 2011-11-14 | 2011-11-14 | Shooting arm driving circuit for shooting robot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202309582U true CN202309582U (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204718696U Expired - Fee Related CN202309582U (en) | 2011-11-14 | 2011-11-14 | Shooting arm driving circuit for shooting robot |
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| Country | Link |
|---|---|
| CN (1) | CN202309582U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108768226A (en) * | 2018-06-22 | 2018-11-06 | 青岛科技大学 | A kind of circuit structure based on monolithic processor controlled motor positive and inverse |
-
2011
- 2011-11-14 CN CN2011204718696U patent/CN202309582U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108768226A (en) * | 2018-06-22 | 2018-11-06 | 青岛科技大学 | A kind of circuit structure based on monolithic processor controlled motor positive and inverse |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20121114 |