CN109167241A - The control circuit of laser - Google Patents
The control circuit of laser Download PDFInfo
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- CN109167241A CN109167241A CN201811088891.5A CN201811088891A CN109167241A CN 109167241 A CN109167241 A CN 109167241A CN 201811088891 A CN201811088891 A CN 201811088891A CN 109167241 A CN109167241 A CN 109167241A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
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- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Semiconductor Lasers (AREA)
Abstract
The present invention relates to a kind of control circuits of laser, it include: laser, including control module and laser emitting module, control module is connected with laser emitting module, control module is for exporting Laser output signal and instruction light trigger signal, and laser emitting module is for receiving Laser output signal to emit laser；Enabled control circuit, connect with control module, receives Laser output signal and instruction light trigger signal, and output makes to can control signal；Enabled control circuit is configured as: when Laser output signal is effective, making to can control invalidating signal；When Laser output invalidating signal, makes to can control signal and follow instruction light trigger signal；Indicating circuit is connected with enabled control circuit, makes to can control signal for reception and issues instruction light；Power circuit is used to provide electric energy to entire load.It solves the problems, such as laser and indicating circuit while light damages the device in indicating circuit out.
Description
Technical field
The present invention relates to field of lasers, more particularly to the control circuit of laser.
Background technique
Red laser is expensive, and the red laser used under normal operation has very long working life, still
Due to unsuitable operating condition, red laser penalty or even failure will lead to.
In field of lasers, it can't see since laser goes out light naked eyes, need that red laser is added, be used to refer to
Show position, but laser can send Laser output signal or feux rouges when being controlled with board (irregular self-control Control card)
Optical signals, when Laser output signal control laser goes out laser, while also to control red laser red out for feux rouges optical signals
Light time, since laser and red laser are all by fibre optical transmission, when laser and feux rouges exist simultaneously, inside optical fiber
Laser reflection light can damage red laser.
Summary of the invention
Laser and red laser can effectively be inhibited the technical problem to be solved in the present invention is to provide one kind while being gone out
The control circuit for the laser that light damages red laser.
In order to achieve the object of the present invention, the present invention adopts the following technical scheme:
A kind of control circuit of laser, comprising:
Laser, including control module and laser emitting module, the control module are connected with the laser emitting module,
For the control module for exporting Laser output signal and instruction light trigger signal, the laser emitting module is described for receiving
Laser output signal is to emit laser；
Enabled control circuit, connect with the control module, receives the Laser output signal and instruction light trigger signal,
And output makes to can control signal；The enabled control circuit is configured as: described enabled when the Laser output signal is effective
Control invalidating signal；When the Laser output invalidating signal, it is described make to can control signal follow the instruction light trigger signal；
Indicating circuit is connected with the enabled control circuit, described make to can control signal and issues instruction light for receiving；
Power circuit is connected with the laser, the indicating circuit respectively, for the laser and the instruction
Circuit provides electric energy；
The input terminal of the indicating circuit is connected with the enabled control terminal of the enabled control circuit.
The control circuit of above-mentioned laser, enabled control circuit are configured as: when Laser output signal is effective, enabling control
Invalidating signal processed；When Laser output invalidating signal, makes to can control signal and follow instruction light trigger signal, i.e., when control module is defeated
When Laser output signal control laser emitting module out emits laser, no matter the instruction light trigger signal of control module output is
It is no effectively, enabled control circuit output makes can control that signal is all invalid, so that the indicating circuit being connected with enabled control circuit
Instruction light is not issued；When the Laser output invalidating signal of control module output, laser emitting module does not emit laser, if this
When control module output instruction light trigger signal it is effective when, enabled control circuit output to make can control signal effective so that
The indicating circuit being connected with enabled control circuit issues instruction light；When the Laser output invalidating signal of control module output, swash
Optical transmitter module does not emit laser, if the instruction light trigger signal of control module output at this time is invalid, enables control circuit
Output make can control invalidating signal so that the indicating circuit being connected with enabled control circuit does not issue instruction light.Laser output
Signal and instruction light trigger signal have codetermined whether indicating circuit issues instruction light, to efficiently solve in conventional laser
In the control circuit of device, when the Laser output signal control laser emitting module transmitting laser of control module output, same to time control
Molding block output feux rouges trigger signal also control instructions circuit issue instruction light when, due to laser emitting module and indicating circuit
It is all by fibre optical transmission, when laser is existed simultaneously with instruction light, the laser reflection light inside optical fiber can be to indicating circuit
In device damage.
The power circuit includes: in one of the embodiments,
Voltage regulator circuit, for providing burning voltage to the indicating circuit；
The input terminal of the indicating circuit includes first input end and the second input terminal, and the first input end makes with described
The enabled control terminal that can control circuit is connected, and the indicating circuit is connected by second input terminal with the voltage regulator circuit.
The indicating circuit includes: in one of the embodiments,
Modulation circuit is equipped with the first input end, second input terminal and signal output end, the first input end
It is connect with the enabled control terminal of the enabled control circuit, second input terminal is connect with the voltage regulator circuit and the letter
Number output end exports modulated signal；
Negative-feedback constant-current source circuit is connect with the signal output end of the modulation circuit, for according to the modulated signal
Export constant current；
It indicates optical generator, is connect with the negative-feedback constant-current source circuit, input the constant current and generate instruction light.
The modulation circuit includes: in one of the embodiments,
Voltage follower circuit: the voltage value for being generated according to the voltage regulator circuit exports the modulated signal；
Anti-jamming circuit, for filtering the enabled dither signal of the enabled control terminal output；
Power-off protecting circuit, for preventing shutdown transient overshoot current from damaging to the instruction optical generator；
The enabled control circuit is connected by the enabled control terminal with the anti-jamming circuit, the anti-jamming circuit
Including filter circuit, the filter circuit includes first resistor and first capacitor；The power-off protecting circuit includes first crystal
Pipe and first capacitor；The drain electrode of the first transistor is connected with the signal output end, and the source electrode of the first transistor connects
The enabled control terminal on ground, the enabled control circuit is connected with the first end of the first resistor, and the second of the first resistor
The grid at end, the first end of the first capacitor and the first transistor connects altogether, the second end ground connection of the first capacitor.
The modulation circuit in one of the embodiments, further include:
Bleeder circuit, for adjusting the modulated signal size；The bleeder circuit includes adjusting resistance and the second electricity
Resistance, the adjustable side for adjusting resistance are connected with the signal output end, the fixing end for adjusting resistance and second electricity
The first end of resistance is connected, the second end ground connection of the second resistance.
The negative-feedback constant-current source circuit includes: in one of the embodiments,
Power-on protective circuit, for preventing powered on moment overshoot current from damaging to the instruction optical generator；
Switching circuit is connected with the power-on protective circuit, described indicates light for flowing through the modulated signal
Device.
The switching circuit includes second transistor in one of the embodiments, and the power-on protective circuit includes the
The first end of two capacitors, 3rd resistor and third transistor, second capacitor is connected with positive pole, second capacitor
The grid of second end, the first end of the 3rd resistor and the third transistor connects altogether, the second termination of the second resistance
The drain electrode on ground, the third transistor is connected with the grid of the second transistor, the source electrode ground connection of the third transistor.
The indicating circuit includes Transient Suppression Diode in one of the embodiments, the instruction optical generator with
The transient voltage suppressor paralleling.
The second transistor and the third transistor are field effect transistor in one of the embodiments,.
The instruction optical generator is red laser in one of the embodiments,.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the control circuit of laser in an embodiment；
Fig. 2 is the circuit diagram that control circuit is enabled in an embodiment；
Fig. 3 is the circuit diagram of power circuit in an embodiment；
Fig. 4 is the circuit structure diagram of indicating circuit in an embodiment；
Fig. 5 is the circuit diagram of modulation circuit in an embodiment；
Fig. 6 is the circuit diagram of negative-feedback constant-current source circuit in an embodiment.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give preferred embodiment of the invention.But the invention can be realized in many different forms, however it is not limited to this paper institute
The embodiment of description.On the contrary, purpose of providing these embodiments is make it is more thorough and comprehensive to the disclosure.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.In the description of the present invention, " several " are meant that at least one, such as one,
Two etc., unless otherwise specifically defined.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement for illustrative purposes only, are not meant to be the only embodiment.
It is the structural schematic diagram of the control circuit of laser in an embodiment referring to Fig. 1, Fig. 1.
A kind of control circuit of laser, comprising:
Laser 10, including control module 110 and laser emitting module 120, control module 110 and laser emitting module
120 are connected, and control module 110 is for exporting Laser output signal 1101 and instruction light trigger signal 1102, laser emitting module
120 for receiving Laser output signal 1101 to emit laser；
Enabled control circuit 20, connect with control module 110, receives Laser output signal 1101 and instruction light trigger signal
1102, and output makes to can control signal 200；Enabled control circuit 20 is configured as: when Laser output signal 1101 is effective, being made
It is invalid to can control signal 200；When Laser output signal 1101 is invalid, makes to can control signal 200 and follow instruction light trigger signal
1102；
Indicating circuit 30 is connected with enabled control circuit 20, makes to can control signal 200 for reception and issues instruction light；
Power circuit 50 is connected with laser 10, indicating circuit 30 respectively, for mentioning to laser 10 and indicating circuit 30
For electric energy；
The input terminal of indicating circuit 30 is connected with the enabled control terminal of enabled control circuit 20.
The control circuit of above-mentioned laser, enabled control circuit 20 are configured as: when Laser output signal 1101 is effective,
Make can control signal 200 in vain；When Laser output signal 1101 is invalid, makes to can control signal 200 and follow instruction light triggering letter
Numbers 1102, i.e., when the Laser output signal 1101 that control module 110 exports, which controls laser emitting module 120, emits laser, nothing
Whether the instruction light trigger signal 1102 exported by control module 110 is effective, and what enabled control circuit 20 exported makes to can control letter
Numbers 200 all invalid, so that the indicating circuit 30 being connected with enabled control circuit 20 does not issue instruction light；When control module 110 is defeated
When Laser output signal 1101 out is invalid, laser emitting module 120 does not emit laser, if control module 110 exports at this time
Instruction light trigger signal 1102 it is effective when, what enabled control circuit 20 exported makes can control signal 200 effectively, so that with enabled
The connected indicating circuit 30 of control circuit 20 issues instruction light；When the Laser output signal 1101 that control module 110 exports is invalid
When, laser emitting module 120 does not emit laser, if the instruction light trigger signal 1102 that control module 110 exports at this time is invalid
When, what enabled control circuit 20 exported makes can control signal 200 in vain, so that the indicating circuit being connected with enabled control circuit 20
30 do not issue instruction light.Laser output signal 1101 and instruction light trigger signal 1102 have codetermined whether indicating circuit 30 is sent out
Light is indicated out, to efficiently solve in the control circuit of conventional laser, when the Laser output letter that control module 110 exports
When numbers 1101 control laser emitting modules 120 emit laser, while the instruction light light trigger signal 1102 that control module 110 exports
Also when control instructions circuit 30 issues instruction light, since laser emitting module 120 and indicating circuit 30 are all to pass through fibre optical transmission
, when laser is existed simultaneously with instruction light, the laser reflection light inside optical fiber can cause to damage to the device in indicating circuit 30
It is bad.
Specifically, the circuit diagram for enabling control circuit 20 referring to fig. 2, enables control circuit 20 by resistance and diode
Composition, wherein resistance includes resistance R6, resistance R7 and resistance R13, and diode includes diode D3 and diode D4, makes can control
Circuit 20 is connected with control module 110, for receiving Laser output signal 1101 and the instruction light triggering of the output of control module 110
Signal 1102, the anode for enabling the Laser output signal end of control circuit 20, resistance R6 and diode D3 are connected, make to can control electricity
The anode for indicating light trigger signal end, resistance R7 and diode D4 on road 20 is connected, and the cathode of diode D3 is with diode D4's
Cathode connects A point altogether and is connected with the first end of resistance R13, and the second end ground connection of resistance R13, A point is enabled control signal end.Its
In, Laser output signal 1101 and instruction light trigger signal 1102 constitute or door, when Laser output signal 1101 is low level,
When indicating that light trigger signal 1102 is low level, make to can control 200 low level of signal；When Laser output signal 1101 is low electricity
It is flat, when instruction light trigger signal 1102 is high level, make to can control 200 high level of signal；When Laser output signal 1101 is
High level makes to can control 200 high level of signal when instruction light trigger signal 1102 is low level；When Laser output signal
1101 be high level, when instruction light trigger signal 1102 is high level, makes to can control 200 high level of signal.
Further, the circuit diagram of power circuit 50 includes: referring to Fig. 3, power circuit 50
Voltage regulator circuit 510, for providing burning voltage to indicating circuit 30；
The input terminal of indicating circuit 30 includes first input end and the second input terminal, first input end and enabled control circuit
20 enabled control terminal is connected, and indicating circuit 30 is connected by the second input terminal with voltage regulator circuit 510.
Further, referring to fig. 4, indicating circuit 30 includes: the electrical block diagram of indicating circuit 30
Modulation circuit 310 is equipped with first input end, the second input terminal and signal output end, first input end and enabled control
The enabled control terminal connection of circuit 20 processed, the second input terminal are connect with voltage regulator circuit 510 and signal output end output modulated signal
3101；
Negative-feedback constant-current source circuit 320 is connect with the signal output end of modulation circuit 310, for according to modulated signal
3101 output constant currents；
It indicates optical generator 330, is connect with negative-feedback constant-current source circuit 320, input constant current and generate instruction light.
Above-mentioned indicating circuit 30, including modulation circuit 310, negative-feedback constant-current source circuit 320 and instruction optical generator
330, modulation circuit 310 is connected with enabled control circuit 20, and what enabled control circuit 20 exported makes can control signal 200 for controlling
Modulation circuit 310 processed exports modulated signal 3101, negative-feedback constant-current source circuit 320 for receive modulated signal 3101 input it is constant
Electric current makes to indicate that optical generator 330 issues instruction light.Wherein, it enables control circuit 20 to be connected with modulation circuit 310, using enabled
It controls signal 200 and controls modulated signal 3101, so that control instructions optical generator 330 issues instruction light, this makes to can control signal
200 can control the instruction function to be realized of optical generator 330 according to user；Modulation circuit 310 passes through negative-feedback
Constant-current source circuit 320 is connected with instruction optical generator 330, and negative-feedback constant-current source circuit 320 is prevented for exporting constant electric current
Excessive electric current flows through instruction optical generator 330, damages to instruction optical generator 330, and instruction optical generator 330 is used for institute
State laser indicating positions when marking.
Further, the circuit diagram of modulation circuit 310 includes: referring to Fig. 5, modulation circuit 310
Voltage follower circuit 3102, the voltage value for being generated according to voltage regulator circuit 510 export modulated signal 3101；
Anti-jamming circuit 3103, for filtering the enabled dither signal of enabled control terminal output；
Power-off protecting circuit 3104, for preventing shutdown transient overshoot current from damaging to instruction optical generator；
Enabled control circuit is connected by enabled control terminal with anti-jamming circuit 3103, and anti-jamming circuit 3103 includes filtering
Circuit, filter circuit include first resistor R4 and first capacitor C5；Power-off protecting circuit 3104 includes the first transistor Q1 and the
One capacitor C5；The drain electrode of the first transistor Q1 is connected with signal output end, and the source electrode ground connection of the first transistor enables control circuit
Enabled control terminal be connected with the first end of first resistor R4, the second end of first resistor R4, the first end of first capacitor C5 and
The grid of the first transistor Q1 connects altogether, the second end ground connection of first capacitor C5.
Above-mentioned modulation circuit 310, including voltage follower circuit 3102, anti-jamming circuit 3103 and power-off protecting circuit
3104, wherein voltage follower circuit 3102 includes operational amplifier and resistance R5, and No. 3 pins of operational amplifier and pressure stabilizing are electric
Road 510 is connected, and the voltage value for being generated according to voltage regulator circuit 510 exports modulated signal 3101, and No. 3 when operational amplifier are drawn
When the voltage of foot is 2.5V, No. 1 pin of operational amplifier exports 2.5V voltage, carries out impedance matching；And due to making can control
Signal 200 is codetermined by Laser output signal 1101 and instruction light trigger signal 1102, and Laser output signal 1101
It with instruction light trigger signal 1102 is exported by control module 110, control module 110 controls laser emitting module 120 and emits
Laser and the moment for stopping transmitting laser can generate interference signal, and anti-jamming circuit 3103 can effectively filter interference letter
Number, wherein power-off protecting circuit 3104 can be effectively prevented shutdown transient overshoot current and damage to instruction optical generator,
Its working principle is that: shutdown transient, the slow electric discharge of capacitor C5 is so that Q1 has more than ten millisecond of short-circuit condition, so that adjusting
Signal 3101 processed has more than ten millisecond to be shorted to ground, and shutdown transient is avoided to have electric current to flow through instruction optical generator.
Further, modulation circuit 310 further include:
Bleeder circuit 3105, for adjusting 3101 size of modulated signal；Bleeder circuit 3105 include adjust resistance RP1 and
Second resistance R3, the adjustable side 2 for adjusting resistance RP1 are connected with signal output end, adjust the fixing end 3 and the second electricity of resistance RP1
The first end for hindering R3 is connected, the second end ground connection of second resistance R3.
Further, the circuit diagram of negative-feedback constant-current source circuit 320 is wrapped referring to Fig. 6, negative-feedback constant-current source circuit 320
It includes:
Power-on protective circuit 3201, for preventing powered on moment overshoot current from damaging to instruction optical generator 3203；
Switching circuit 3202 is connected with power-on protective circuit 3201, for making modulated signal flow through instruction optical generator
3203。
Above-mentioned negative-feedback constant-current source circuit 320 includes power-on protective circuit 3201 and switching circuit 3202, switching circuit
3202 are connected with the modulated signal end of the modulation circuit, when powered on moment, for disconnecting the modulation circuit and instruction light
The circuit of generator 3203；When operating normally, for the modulation circuit to be connected and indicates the circuit of optical generator 3203, from
And efficiently solve powered on moment overshoot current and instruction optical generator 3203 is damaged,
Specifically, switching circuit 3202 includes second transistor Q2, and power-on protective circuit 3202 includes the second capacitor C1, the
Three resistance R12 and third transistor Q3, the first end of the second capacitor C1 are connected with positive pole, the second end of the second capacitor C1,
The first end of 3rd resistor R12 and the grid of third transistor Q3 connect altogether, the second end ground connection of second resistance R12, third crystal
The drain electrode of pipe Q3 is connected with the grid of second transistor Q2, the source electrode ground connection of third transistor Q3.Wherein, power-on protective circuit
3202 can effectively prevent powered on moment overshoot current to damage instruction optical generator 3203, its working principle is that: power on wink
Between, the second capacitor C1 is slowly discharged by 3rd resistor R12, and third transistor Q3 becomes off state from short circuit, in short-circuit shape
When state, the grid of second transistor Q2 is shorted to ground, to prevent electric current by second transistor Q2, avoids powered on moment
Overshoot current flow through instruction optical generator 3203, to instruction optical generator 3203 damage.
Specifically, indicating circuit 30 includes Transient Suppression Diode D1, and instruction optical generator 3203 and transient state inhibit two poles
Pipe D1 is in parallel.Wherein, Transient Suppression Diode D1 is connected in parallel on instruction 3203 both ends of optical generator, when their both ends are subjected to moment
High energy impact events when, the impedance value between both ends can be become low-resistance from high impedance with high speed by Transient Suppression Diode D1
It is anti-, to absorb an instantaneous large-current, its both end voltage strangulation one it is scheduled numerically, to protect subsequent electricity
Circuit component is not by the impact of high voltage transient spike, to also function to the effect of protection instruction optical generator.
Specifically, second transistor Q2 and third transistor Q3 is field effect transistor.Wherein, second transistor Q2 and
Three transistor Q3 are respectively equivalent to a switch, and when giving a trigger signal, the circuit of its needs effect, the second crystal is connected
Pipe Q2 and third transistor Q3 is that field-effect is specifically managed, and works as powered on moment, and the second capacitor C1 is slowly put by 3rd resistor R12
Electricity, third transistor Q3 becomes off state from short circuit, and in short-circuit condition, the grid of second transistor Q2 is shorted to ground,
To prevent electric current by second transistor Q2, the overshoot current for avoiding powered on moment flows through instruction optical generator 3203, right
Instruction optical generator 3203 damages.
Specifically, instruction optical generator 3203 is red laser, wherein red laser swashing compared to other colors
Light device penetrability is strong, and color is eye-catching, is convenient for laser indicating positions when marking.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of control circuit of laser characterized by comprising
Laser, including control module and laser emitting module, the control module is connected with the laser emitting module, described
Control module is for exporting Laser output signal and instruction light trigger signal, and the laser emitting module is for receiving the laser
Optical signals are to emit laser；
Enabled control circuit, connect with the control module, receives the Laser output signal and instruction light trigger signal, and lead to
Crossing output makes to can control signal；The enabled control circuit is configured as: described enabled when the Laser output signal is effective
Control invalidating signal；When the Laser output invalidating signal, it is described make to can control signal follow the instruction light trigger signal；
Indicating circuit is connected with the enabled control circuit, described make to can control signal and issues instruction light for receiving；
Power circuit is connected with the laser, the indicating circuit respectively, for the laser and the indicating circuit
Electric energy is provided；
The input terminal of the indicating circuit is connected with the enabled control terminal of the enabled control circuit.
2. the control circuit of laser according to claim 1, which is characterized in that the power circuit includes:
Voltage regulator circuit, for providing burning voltage to the indicating circuit；
The input terminal of the indicating circuit includes first input end and the second input terminal, the first input end and the enabled control
The enabled control terminal of circuit processed is connected, and the indicating circuit is connected by second input terminal with the voltage regulator circuit.
3. the control circuit of laser according to claim 2, which is characterized in that the indicating circuit includes:
Modulation circuit is equipped with the first input end, second input terminal and signal output end, the first input end and institute
State enabled control circuit enabled control terminal connection, second input terminal is connect with the voltage regulator circuit and the signal is defeated
Outlet exports modulated signal；
Negative-feedback constant-current source circuit is connect with the signal output end, for exporting constant current according to the modulated signal；
It indicates optical generator, is connect with the negative-feedback constant-current source circuit, input the constant current and generate instruction light.
4. the control circuit of laser according to claim 3, which is characterized in that the modulation circuit includes:
Voltage follower circuit: the voltage value for being generated according to the voltage regulator circuit exports the modulated signal；
Anti-jamming circuit, for filtering the enabled dither signal of the enabled control terminal output；
Power-off protecting circuit, for preventing shutdown transient overshoot current from damaging to the instruction optical generator；
The enabled control circuit is connected by the enabled control terminal with the anti-jamming circuit, and the anti-jamming circuit includes
Filter circuit, the filter circuit include first resistor and first capacitor；The power-off protecting circuit include the first transistor and
First capacitor；The drain electrode of the first transistor is connected with the signal output end, the source electrode ground connection of the first transistor, institute
The enabled control terminal for stating enabled control circuit is connected with the first end of the first resistor, the second end of the first resistor, institute
The grid of the first end and the first transistor of stating first capacitor connects altogether, the second end ground connection of the first capacitor.
5. the control circuit of laser according to claim 4, which is characterized in that the modulation circuit further include:
Bleeder circuit, for adjusting the modulated signal size；The bleeder circuit includes adjusting resistance and second resistance, institute
It states and adjusts the adjustable side of resistance and be connected with the signal output end, the of fixing end and the second resistance of the adjusting resistance
One end is connected, the second end ground connection of the second resistance.
6. the control circuit of laser according to claim 3, which is characterized in that the negative-feedback constant-current source circuit packet
It includes:
Power-on protective circuit, for preventing powered on moment overshoot current from damaging to the instruction optical generator；
Switching circuit is connected with the power-on protective circuit, for making the modulated signal flow through the instruction optical generator.
7. the control circuit of laser according to claim 6, which is characterized in that the switching circuit includes the second crystal
Pipe, the power-on protective circuit include the second capacitor, 3rd resistor and third transistor, the first end and electricity of second capacitor
Source circuit anode is connected, the grid of the second end of second capacitor, the first end of the 3rd resistor and the third transistor
It extremely connects altogether, the second end ground connection of the second resistance, the drain electrode and the grid phase of the second transistor of the third transistor
Even, the source electrode ground connection of the third transistor.
8. the control circuit of laser according to claim 3, which is characterized in that the indicating circuit includes that transient state inhibits
Diode, the instruction optical generator and the transient voltage suppressor paralleling.
9. the control circuit of laser according to claim 7, which is characterized in that the second transistor and the third
Transistor is field effect transistor.
10. according to the control circuit of laser described in claim 3,4,6 or 8 any one, which is characterized in that the instruction
Optical generator is red laser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811088891.5A CN109167241B (en) | 2018-09-18 | 2018-09-18 | control circuit of laser |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811088891.5A CN109167241B (en) | 2018-09-18 | 2018-09-18 | control circuit of laser |
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| CN109167241A true CN109167241A (en) | 2019-01-08 |
| CN109167241B CN109167241B (en) | 2019-12-06 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111431026A (en) * | 2020-05-07 | 2020-07-17 | 苏州科韵激光科技有限公司 | Laser equipment and control method thereof |
| CN112164968A (en) * | 2020-09-18 | 2021-01-01 | 苏州创鑫激光科技有限公司 | Laser current selection method, system, device and readable storage medium |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9222810B1 (en) * | 2013-09-19 | 2015-12-29 | Sandia Corporation | In situ calibration of a light source in a sensor device |
| CN105892213A (en) * | 2016-06-30 | 2016-08-24 | 海信集团有限公司 | Driving control circuit of two-color laser light source |
| CN106549511A (en) * | 2016-10-28 | 2017-03-29 | 暨南大学 | Based on the visible laser far-distance wireless charging device for indicating light protection |
| CN106785832A (en) * | 2016-11-25 | 2017-05-31 | 深圳市杰普特光电股份有限公司 | Pulse optical fiber |
| CN206727414U (en) * | 2017-04-06 | 2017-12-08 | 深圳市联赢激光股份有限公司 | A kind of laser negative feedback control circuit |
| CN207265409U (en) * | 2017-08-23 | 2018-04-20 | 深圳市杰普特光电股份有限公司 | A kind of laser control circuit and laser |
| CN108008749A (en) * | 2017-12-30 | 2018-05-08 | 深圳市杰普特光电股份有限公司 | Laser switching device |
| CN207824203U (en) * | 2017-11-27 | 2018-09-07 | 广东铭钰科技股份有限公司 | A kind of laser optical path control structure |
-
2018
- 2018-09-18 CN CN201811088891.5A patent/CN109167241B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9222810B1 (en) * | 2013-09-19 | 2015-12-29 | Sandia Corporation | In situ calibration of a light source in a sensor device |
| CN105892213A (en) * | 2016-06-30 | 2016-08-24 | 海信集团有限公司 | Driving control circuit of two-color laser light source |
| CN106549511A (en) * | 2016-10-28 | 2017-03-29 | 暨南大学 | Based on the visible laser far-distance wireless charging device for indicating light protection |
| CN106785832A (en) * | 2016-11-25 | 2017-05-31 | 深圳市杰普特光电股份有限公司 | Pulse optical fiber |
| CN206727414U (en) * | 2017-04-06 | 2017-12-08 | 深圳市联赢激光股份有限公司 | A kind of laser negative feedback control circuit |
| CN207265409U (en) * | 2017-08-23 | 2018-04-20 | 深圳市杰普特光电股份有限公司 | A kind of laser control circuit and laser |
| CN207824203U (en) * | 2017-11-27 | 2018-09-07 | 广东铭钰科技股份有限公司 | A kind of laser optical path control structure |
| CN108008749A (en) * | 2017-12-30 | 2018-05-08 | 深圳市杰普特光电股份有限公司 | Laser switching device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111431026A (en) * | 2020-05-07 | 2020-07-17 | 苏州科韵激光科技有限公司 | Laser equipment and control method thereof |
| CN111431026B (en) * | 2020-05-07 | 2021-04-30 | 苏州科韵激光科技有限公司 | Laser equipment and control method thereof |
| CN112164968A (en) * | 2020-09-18 | 2021-01-01 | 苏州创鑫激光科技有限公司 | Laser current selection method, system, device and readable storage medium |
| CN112164968B (en) * | 2020-09-18 | 2021-08-17 | 苏州创鑫激光科技有限公司 | Laser current selection method, system, device and readable storage medium |
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|---|---|
| CN109167241B (en) | 2019-12-06 |
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