CN106207730A - A kind of high stability laser pumping source with overheat protection function - Google Patents
A kind of high stability laser pumping source with overheat protection function Download PDFInfo
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- CN106207730A CN106207730A CN201610801057.0A CN201610801057A CN106207730A CN 106207730 A CN106207730 A CN 106207730A CN 201610801057 A CN201610801057 A CN 201610801057A CN 106207730 A CN106207730 A CN 106207730A
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- 238000005086 pumping Methods 0.000 title claims abstract description 18
- 238000012545 processing Methods 0.000 claims abstract description 27
- 238000005070 sampling Methods 0.000 claims abstract description 27
- 230000005669 field effect Effects 0.000 claims description 36
- 230000005611 electricity Effects 0.000 claims description 22
- 230000003287 optical effect Effects 0.000 claims description 21
- 239000013307 optical fiber Substances 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 7
- 239000003990 capacitor Substances 0.000 claims description 5
- 230000000087 stabilizing effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 10
- 230000008859 change Effects 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 5
- 239000000835 fiber Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910052761 rare earth metal Inorganic materials 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 230000003534 oscillatory effect Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010147 laser engraving Methods 0.000 description 1
- 238000010330 laser marking Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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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
-
- 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
- H01S3/0014—Monitoring arrangements not otherwise provided for
-
- 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
- H01S3/13—Stabilisation of laser output parameters, e.g. frequency or amplitude
- H01S3/1305—Feedback control systems
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- Optics & Photonics (AREA)
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- Semiconductor Lasers (AREA)
Abstract
A kind of high stability laser pumping source with overheat protection function of the present invention belongs to technical field of electronic equipment; structure has laser module (1), power control module (2) and temperature control modules (3); it is characterized in that; structure also has driver module (3), and described power control module (2) is driven module (24), overtemperature processing module (25) and soft-start module (26) to constitute by power setting module (21), power sampling module (22), PID arithmetic module (23), LD.Stability of the present invention is high, has overtemperature alarm power-off and soft start function.
Description
Technical field
The invention belongs to technical field of electronic equipment, particularly to a kind of high stability laser with overheat protection function
Pumping source device.
Background technology
Optical fiber laser is good etc. with its Low threshold, high power, high light beam quality, good reliability, compact conformation and thermal diffusivity
Plurality of advantages, be widely used in laser fiber communication, laser space remote communication, industry shipbuilding, automobile making, laser engraving,
Laser marking, cut, printing roller, metal and nonmetal boring/cutting/welding (brazing, hardening, covering and degree of depth weldering
Connect), military and national defense safety, the field such as medical apparatus and instruments instrument and equipment.Optical fiber laser is to utilize rare earth-doped fiber as increasing
The laser instrument of benefit medium.Optical fiber laser is developed on the basis of fiber amplifier, by pumping source, rare earth doped light
Fine, three fundamental compositions of resonator cavity, its operation principle is: the photon on pumping wavelength that pumping source produces is doped optical fiber
Absorb so that it is in rare earth element ion transit to higher energy level, form population inversion；In condition that is spontaneous or that be excited
Under, rare earth element ion is returned to low-lying level by high level and discharges the photon of corresponding energy simultaneously；Light at optical fiber laser
In fine resonator cavity, said process constitutes positive feedback, thus forms laser generation output.
In optical fiber laser, it is necessary to provided energy source by a laser pumping source for whole optical fiber laser, as light
The core of fibre laser, pumping source topmost technical specification master is the degree of stability of Output of laser, produces at various laser
In circuit, the system being made up of butterfly laser module and current driver, temperature controller is owing to it is easy to use, function is rich
The advantages such as richness, stability are high, be easily integrated are widely used, and prior art immediate with the present invention is that this seminar is in 2014
The patent of invention " a kind of high stability pump source of optical fiber laser " of year application, Application No. 2014103102505, the document
In, with butterfly laser module as luminous source, it is driven by the constant-flow driver the highest by stability and radiator valve
And temperature control, in addition to butterfly laser module carries out temperature control, system other parts core device is also carried out temperature control, has been effectively improved
The degree of stability of Output of laser, but this technology there is also certain defect: and one, what driver was taked is the control of common linear scale
Mode processed, and butterfly laser module belongs to electro-optical conversioning device, transformation process output optical signal and input electrical signal can not be kept away
There will be delay phenomenon with exempting from, when needs frequently change power, output cannot can catch up with the signal of telecommunication quickly and accurately
Change, or when changing driving electric current, Output optical power can occur oscillatory occurences near target power；Two, system does not has
Overtemperature prote measure, there is event beyond temperature control ability or the temperature controller of temperature controller in the heat that once butterfly laser module produces
During barrier, laser temperature can steeply rise, it is easy to burns out butterfly laser module.Based on above-mentioned situation, at present at laser instrument
Produce in circuit, the problem that especially also there is a need to solve further in terms of stability and safety.
Summary of the invention
The technical problem to be solved in the present invention is, overcomes the deficiency in background technology, it is provided that a kind of power stability high and
There is the laser pumping source of overheat protection function.
The technical problem of the present invention solves by the following technical programs:
A kind of high stability laser pumping source with overheat protection function, structure has laser module 1, power to control mould
Block 2 and temperature control modules 3, it is characterised in that structure also has driver module 3, and described power control module 2 is by power
Module 21, power sampling module 22, PID arithmetic module 23, LD driving module 24, overtemperature processing module 25 and soft start mould are set
Block 26 is constituted；
The structure of described power setting module 21 is, a termination power VCC of resistance R1, and another terminates Zener diode
The negative electrode of D1 and one end of slide rheostat W1, the anode of Zener diode D1 and the other end ground connection of slide rheostat W1, sliding
One end of the end of slide wire connecting resistance R2 of dynamic rheostat W1, the in-phase input end of another termination amplifier U1A of resistance R2, amplifier U1A
One end of anti-phase input terminating resistor R3 and one end of resistance R4, the other end of outfan connecting resistance R4, and set as power
Putting the outfan of module 21, be designated as the other end ground connection of port P_set, resistance R3, the positive and negative power end of amplifier U1A connects respectively
Power supply VCC and ground；
The structure of described power sampling module 22 is, the in-phase input end of termination amplifier U1B of resistance R5, and conduct
One input of power sampling module 22, is connected with the port PD+ of laser module 1, another termination amplifier U2A of resistance R5
In-phase input end, and as another input of power sampling module 22, be connected with the port PD-of laser module 1, fortune
Putting the inverting input of U1B and the indirect resistance R6 of outfan, the outfan of amplifier U1B is as the output of power sampling module 22
End, is designated as port P_F, one end of the inverting input of amplifier U1B also connecting resistance R7 and one end of resistance R8, another of resistance R8
One end of terminating resistor R9, one end of resistance R10 and the inverting input of amplifier U2A, the other end ground connection of resistance R10, resistance
The other end of R7 and the outfan of another termination amplifier U2A of resistance R9, the positive and negative power end of amplifier U2A meets power supply VCC respectively
With power supply VEE；
The structure of described PID arithmetic module 23 is, the inverting input of termination amplifier U2B of resistance R11, the other end
As the feedback input end of PID arithmetic module 23, be designated as port P_F_in, and with the port P_F phase in power sampling module 22
Even, the in-phase input end of termination amplifier U2B of resistance R12, the other end is as the input that arranges of PID arithmetic module 23, note
For port P_set_in, and being connected with the port P_set in power setting module 21, the in-phase input end of amplifier U2B is by electricity
Resistance R14 ground connection, the outfan of termination amplifier U2B of the indirect resistance R13 of inverting input and outfan, resistance R15, another
The inverting input of termination amplifier U3A, the in-phase input end of amplifier U3A passes through resistance R16 ground connection, inverting input and outfan
Indirect resistance R17, one end of the outfan connecting resistance R18 of amplifier U3A, resistance R18 another termination amplifier U4B anti-phase defeated
Enter end；The outfan of one termination amplifier U2B of resistance R19, the inverting input of another termination amplifier U3B, the homophase of amplifier U3B
Input passes through resistance R20 ground connection, inverting input and the indirect electric capacity C1 of outfan, one end of outfan connecting resistance R21, electricity
The inverting input of another termination amplifier U4B of resistance R21；The outfan of one termination amplifier U2B of resistance R22, another terminates electricity
Hold one end of C2, one end of another termination capacitor C3 of electric capacity C2, one end of resistance R24 and the inverting input of amplifier U4A, electricity
Holding the other end of C3 and the outfan of another termination amplifier U4A of resistance R24 and one end of resistance R25, the homophase of amplifier U4A is defeated
Enter end by resistance R23 ground connection, the inverting input of another termination amplifier U4B of resistance R25；The in-phase input end of amplifier U4B
By resistance R27 ground connection, the indirect resistance R26 of inverting input and outfan, outfan is as the output of PID arithmetic module 23
End, is designated as port I_ctr；The positive supply termination power VCC of amplifier U3A and amplifier U4A, negative supply termination power VEE；
Described LD drives the structure of module 24 to be that the one of resistance R28 terminates the in-phase input end of amplifier U5B, the other end
The electric current driving module 24 as LD controls input, is designated as port I_ctr_in, and with the port I_ of PID arithmetic module 24
Ctr is connected, and the in-phase input end of amplifier U5B drives the overtemperture control input of module 24 as LD, is designated as port Alert_
Ctr_in, and be connected with the port Alert_ctr of overtemperature power-off modular 25, between inverting input and the outfan of amplifier U5B
Meet electric capacity C4, one end of inverting input also connecting resistance R29 and one end of resistance R30, another termination power VCC of resistance R29,
One end of another termination adjustable resistance W2 of resistance R30 and the outfan of amplifier U5A, the other end connecting resistance of adjustable resistance W2
One end of R31, the inverting input of another termination amplifier U5A of resistance R31, the in-phase input end of amplifier U5A and anti-phase input
End is connected with one end of resistance R32 and one end of resistance R33 respectively, one end of the other end connecting resistance Rs1 of resistance R32 and field effect
Should the source electrode of pipe Q1, the other end of the other end connecting resistance Rs1 of resistance R33, also connect the port LD+ of laser module 1, field effect
The drain electrode of pipe Q1 meets power supply VCC, and grid connects the outfan of amplifier U5B, the positive and negative power end of amplifier U5A connect respectively power supply VCC and
Ground；
The structure of described overtemperature processing module 25 is, a termination power VCC of resistance R34, another termination amplifier U6B
In-phase input end and one end of adjustable resistance W3, the other end ground connection of adjustable resistance W3, the inverting input of amplifier U6B and output
End is connected, and also one end with resistance R36 is connected, and as alarm temperature display end, is designated as port Alert_disp, resistance R36
Another termination amplifier U6A in-phase input end, the positive-negative power end of amplifier U6A connect respectively power supply VCC and ground, in-phase input end
With the indirect resistance R37 of outfan, one end of anti-phase input terminating resistor R35, the other end of resistance R35 processes mould as overtemperature
The input of block 25, is connected with the port NTC+ of laser module 1, the grid of output termination field effect transistor Q2 of amplifier U6A, field
The anode of the source electrode sending and receiving optical diode D2 of effect pipe Q2, drain the controlling alarm outfan as overtemperature processing module 25, with
LD drives the port Alertlert_ctr_in of module 24 to be connected, the minus earth of light emitting diode；
The structure of described soft-start module 26 is, a termination power VCC of switch S1, the one of other end connecting resistance R38
End and the negative electrode of diode D3, the other end ground connection of resistance R38, one end of anode connecting resistance R39 of diode D3, resistance R40
One end and the in-phase input end of amplifier U7A, the other end ground connection of resistance R39, another termination power VCC of resistance R40, amplifier
The positive-negative power end of U7A connect respectively power supply VCC and ground, one end of anti-phase input terminating resistor R41 and one end of resistance R42, defeated
Go out one end and one end of resistance R44 of terminating resistor R43, the other end ground connection of resistance R41, another termination power of resistance R42
The grid of another termination field effect transistor Q3 of VCC, resistance R43, the base stage of another termination audion Q4 of resistance R44, field effect
The source ground of pipe Q3, the negative electrode of drain electrode sending and receiving optical diode D4, one end of the anode connecting resistance R45 of light emitting diode D4, electricity
Another termination power VCC of resistance R45, the emitter stage of audion Q4 meets power supply VCC, one end of colelctor electrode connecting resistance R46, electric capacity C5
One end and the grid of field effect transistor Q5, the other end of resistance R46 and the other end ground connection of electric capacity C5, the source electrode of field effect transistor Q5
Ground connection, drain the outfan as soft-start module 26, is designated as port SoftStart, with the port that LD drives module 24
Alert_ctr_in is connected；
The structure of described driver module 4 is, one end ground connection of slide rheostat W4, and the other end drives as display
The power display input of module 4, is designated as port P_disp, is connected with the port P_F of power sampling module 22, slide rheostat
The end of slide wire of W4 is connected with first selection end of SP3T switch S2, and the in-phase input end of amplifier U7B drives as display
The temperature display input of module 4, is designated as port T_disp, is connected with the port NTC+ of laser module 1, amplifier U7B anti-
Phase input is connected with outfan, and also one end with slide rheostat W5 is connected, the other end ground connection of slide rheostat W5, slip
Second selection end of termination SP3T switch S2, one end ground connection of slide rheostat W6, the other end drives mould as display
The alarm temperature display input of block 4, is designated as port A_disp, is connected with the port Alert_disp of overtemperature processing module 25,
3rd the selection end of the end of slide wire order cutter three throw switch S2 of slide rheostat W6, the public termination electricity of SP3T switch S2
One end of resistance R47, the in-phase input end of another termination amplifier U8A of resistance R47, the positive-negative power end of amplifier U8A connects electricity respectively
Source VCC and ground, one end of anti-phase input terminating resistor R48 and one end of resistance R49, the other end ground connection of resistance R48, resistance
One end of another termination adjustable resistance W7 of R49, the outfan of another termination amplifier U8A of adjustable resistance W7, and as display
Drive the outfan of module 4, be connected with the signal input part of gauge outfit 50 in front panel 5；
The structure of described front panel 5 has gauge outfit 50, display pattern 51, on and off switch 52, power setting 53, temperature to arrange
54, overtemperature is preset 55, relay indicating light 56, overtemperature alarm display lamp 57, laser output mouth 58 and output control 59；Described
Gauge outfit 50 is the digital voltage gauge outfit of 4 half, and display pattern 51 is the SP3T switch S2 of driver module 4, electricity
Source switch 52 is the total power switch of whole device, and power setting 53 is the tune of the slide rheostat W1 in power setting module 21
Joint knob, it is the adjusting knob of the slide rheostat for regulating operating temperature in temperature control modules 3 that temperature arranges 54, super
Temperature preset 55 is the adjusting knob of the adjustable resistance W3 in overtemperature processing module 25, and relay indicating light 56 is in soft-start module 26
Light emitting diode D4, overtemperature alarm display lamp 57 is the light emitting diode D2 in overtemperature processing module 25, laser output mouth
58 are connected with the tail optical fiber of laser module 1, and it is the switch S1 in soft-start module 26 that output controls 59.
In a kind of high stability laser pumping source with overheat protection function of the present invention, institute in power control module 2
The preferred parameter of each device be that resistance R1:9.1k Ω, resistance R2～resistance R4 are 10k Ω, resistance R5:1.5k Ω, electricity
Resistance R6, resistance R7, resistance R9, resistance R10 are 180k Ω, and resistance R8:20k Ω, resistance R11～resistance R16 are 10k Ω,
Resistance R17:20k Ω, resistance R18:10k Ω, resistance R19, resistance R20 be 20k Ω, resistance R21:10k Ω, resistance R22:
200k Ω, resistance R23:150k Ω, resistance R24:180k Ω, resistance R25～resistance R28 be 10k Ω, resistance R29:1M Ω,
Resistance R30:10k Ω, resistance 31:200k Ω, resistance R32, resistance R33 be 10k Ω, resistance R34:100k Ω, resistance R35:
200k Ω, resistance R36:10k Ω, resistance R37:180k Ω, resistance R38～resistance R45 are 20k Ω, resistance R46:2M Ω, electric
Resistance R47～resistance R49 is 10k Ω, resistance Rs1:0.1 Ω, slide rheostat W1:10k Ω, adjustable resistance W2:200k Ω, can
Resistance W3:10k Ω, slide rheostat W4～slide rheostat W6 is adjusted to be 10k Ω, adjustable resistance W7:200k Ω, electric capacity C1,
Electric capacity C2 is 1uF, electric capacity C3:22pF, electric capacity C4:0.47uF, electric capacity C5:1uF, Zener diode D1:2.5V, light-emitting diodes
Pipe D2 is red light emitting diodes, light emitting diode D4 state green LED, diode D3:1N4148, field effect transistor Q1:
IRF540, field effect transistor Q2, field effect transistor Q3 and field effect transistor Q5 are k1482, audion Q4:s9012, amplifier U1A and fortune
Put U1B be model be two working cells of the integrated double operational of LM358P, amplifier U2A and amplifier U2B are that second model is
Two working cells of the integrated double operational of LM358P, amplifier U3A and amplifier U3B be the 3rd model be the integrated double of LM358P
Two working cells of amplifier, amplifier U4A and amplifier U4B be the 4th model be two work of the integrated double operational of LM358P
Unit, amplifier U5A and amplifier U5B be the 5th model be two working cells of the integrated double operational of LM358P, amplifier U6A and
Amplifier U6B be the 6th model be two working cells of the integrated double operational of LM358P, amplifier U7A and amplifier U7B are the 7th
Individual model is two working cells of the integrated double operational of LM358P, amplifier U8A be the 8th model be the integrated double of LM358P
One working cell of amplifier, power supply VCC is+12V, and power supply VEE is-12V.
In a kind of high stability laser pumping source with overheat protection function of the present invention, described laser module 1
Preferably JDSU LC96 butterfly encapsulated laser module.
In a kind of high stability laser pumping source with overheat protection function of the present invention, described temperature control modules
3 is prior art, available any can realize temperature controlled circuit and constitutes, it is possible to reference to Chinese patent CN2007100559129
(high-stability thermostatic controller) or Chinese patent CN2010102701027 (wide power power consumption limit based on thermoelectric refrigerator
Type radiator valve) in design.
Beneficial effect:
1, the present invention add in power control module PID arithmetic circuit to drive electric current be controlled, can effectively carry
The stability of high Output optical power, and effectively prevent the oscillatory occurences of Output optical power when changing driving electric current.
2, the present invention adds overtemperature power-off control circuit in power control module, when the operating temperature of laser module
Driving electric current can be automatically cut off when exceeding the early warning temperature of setting, effectively prevent the laser die caused owing to operating temperature is too high
Block damages, and improves the safety of system.
3, the present invention has soft starting circuit in power control module, and Output optical power can be from 0 smooth rising on startup
To setting value, it is to avoid optical system is impacted by power saltus step during startup.
Accompanying drawing illustrates:
Fig. 1 is the overall theory diagram of a kind of high stability laser pumping source with overheat protection function of the present invention.
Fig. 2 is the structured flowchart of power control module 2.
Fig. 3 is encapsulation and the pin schematic diagram of the laser module 1 used by the present invention.
Fig. 4 is the basic circuit diagram of power setting module 21.
Fig. 5 is the basic circuit diagram of power sampling module 22.
Fig. 6 is the basic circuit diagram of PID arithmetic module 23.
Fig. 7 is the basic circuit diagram that LD drives module 24.
Fig. 8 is the basic circuit diagram of overtemperature processing module 25.
Fig. 9 is the basic circuit diagram of soft-start module 26.
Figure 10 is the basic circuit diagram of driver module 4.
Figure 11 is the front panel schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings, concrete structure and the operation principle of each several part circuit of the present invention are described.Marked parameter in accompanying drawing
Preferred circuit parameter for each embodiment.
Embodiment 1 overall system architecture
As it is shown in figure 1, system structure has laser module 1, power control module 2, temperature control modules 3 and display to drive
Module 4, the structure of described power control module 2 is as in figure 2 it is shown, by power setting module 21, power sampling module 22, PID
Computing module 23, LD drive module 24, overtemperature processing module 25 and soft-start module 26 to constitute, power control module 2 and temperature
Control module 3 is all connected with laser module 1, and power control module 2 provides to laser module 1 and drives electric current, by driving
The size of electric current controls the size of Output optical power, power setting module 21 arrange required power (the most defeated
Go out), Output optical power is sampled also by power sampling module 22 by photodiode (PD) integrated in laser module 1
Being converted into voltage, the voltage then arranged with power setting module 21 carries out seeking difference and carrying out PID fortune in PID arithmetic module 23
Calculating, the result of computing exports LD and drives module 24 and control its output driving electric current to laser module 1, and then controls to swash
The Output optical power of light device module 1, automatically controls effect due to PID arithmetic module so that Output optical power can accurately, fast
Speed, be stably changed according to the power set by power setting module 21, overtemperature processing module 25 passes through laser instrument simultaneously
The operating temperature of laser module is monitored, when temperature exceedes safe temperature by critesistor (NTC) integrated in module 1
Time, overtemperature processing module 25 can export a control signal, and LD drives module 24 turn off, and lights surpassing on front panel 5 simultaneously
Temperature alarm lamp 57, now, the power no matter power setting module 21 is arranged is how many, and LD drives module 24 the most not to laser
Device module 1 output driving current, the responsible operating temperature controlling laser module of temperature control modules 3, driver module 4 is used
Select physical quantity to be shown, and be converted into the gauge outfit 50 that suitable magnitude of voltage delivers on front panel 5 and show.
Embodiment 2 laser module
The laser module 1 of the present embodiment selects JDSU LC96 butterfly encapsulated laser module, and its encapsulation and pin show
Be intended to as it is shown on figure 3, this laser module be internally integrated laser diode LD, photodiode PD, thermoelectric refrigerator TEC and
Critesistor NTC, the laser output mouth that tail optical fiber is directly connected on front panel 5 is for Output of laser, and this module has 14
Pin, wherein 6 feet, 7 feet, 8 feet, 9 feet, 12 feet are sky pin (NC), 1 foot and 14 feet is the two of internal thermoelectric refrigerator respectively
Individual current input terminal (port TEC+ and port TEC-) is used for being connected with the current output terminal mouth of temperature control modules 3,2 feet and 5
Foot is two Wiring ports (port NTC+ and port NTC-) being internally integrated critesistor, is used for and temperature control modules 3
Critesistor input is connected, and port NTC+ also input with overtemperature power-off modular 25 is connected, and 3 feet and 4 feet are for being internally integrated
Two Wiring ports (port PD+ and port PD-) of photodiode, the size of current of this Two-port netwerk output has reacted luminous power
Size, this Two-port netwerk is connected with two inputs of power sampling module, for Output optical power is converted into voltage signal,
10 feet and 11 feet are anode and negative electrode (port LD+ and port LD-), its middle port LD-ground connection, the ports of inner laser diode
LD+ with LD drives the outfan of module 24 to be connected, LD the laser diode driving module 24 the most integrated provides and drives electricity
Its Output optical power of flow control, 13 feet are earthing of casing end.
Embodiment 3 temperature control module
Temperature control modules 3 of the present invention is prior art, specifically refers to applicant seminar previous application
Chinese patent CN2007100559129 (high-stability thermostatic controller) or Chinese patent CN2010102701027 is (based on thermoelectricity
The wide power power consumption limit type radiator valve of refrigerator) in design, temperature control modules 3 has one group of current output terminal, use
In driving thermoelectric refrigerator to carry out freezing or heating, temperature control modules 3 also has one group of critesistor input, is used for connecting heat
Quick resistance, and the change in resistance (change of the reacting condition temperature of resistance) of critesistor is converted into change in voltage feeds back to temperature
Degree control module 3 is temperature automatically controlled to realize, and is used for regulating before the slide rheostat of operating temperature is placed in temperature control modules 3
On panel 5, its adjusting knob arranges 54 as the temperature on front panel 5.
Embodiment 4 power setting module
As shown in Figure 4, the structure of described power setting module 21 is, a termination power VCC of resistance R1, another termination
Another of the negative electrode of Zener diode D1 and one end of slide rheostat W1, the anode of Zener diode D1 and slide rheostat W1
End ground connection, one end of the end of slide wire connecting resistance R2 of slide rheostat W1, the homophase input of another termination amplifier U1A of resistance R2
End, one end of the anti-phase input terminating resistor R3 of amplifier U1A and one end of resistance R4, the other end of outfan connecting resistance R4, and
As the outfan of power setting module 21, it is designated as the other end ground connection of port P_set, resistance R3, the positive and negative electricity of amplifier U1A
Source connects power supply VCC and ground respectively；Required voltage can be arranged by the slide rheostat W1 in this module to export, and then control
Final Output optical power.
Embodiment 5 power sampling module
As it is shown in figure 5, the structure of described power sampling module 22 is, the homophase of termination amplifier U1B of resistance R5 is defeated
Enter end, and as an input of power sampling module 22, be connected with the port PD+ of laser module 1, another of resistance R5
The in-phase input end of termination amplifier U2A, and as another input of power sampling module 22, with the end of laser module 1
Mouth PD-is connected, the inverting input of amplifier U1B and the indirect resistance R6 of outfan, and the outfan of amplifier U1B samples as power
The outfan of module 22, is designated as port P_F, one end of the inverting input of amplifier U1B also connecting resistance R7 and one end of resistance R8,
One end of other end connecting resistance R9, one end of resistance R10 and the inverting input of amplifier U2A of resistance R8, another of resistance R10
End ground connection, the other end of resistance R7 and the outfan of another termination amplifier U2A of resistance R9, the positive and negative power end of amplifier U2A divides
Do not meet power supply VCC and power supply VEE.The Output optical power of laser module 1 is converted into voltage signal by power sampling module 22.
Embodiment 6PID computing module
As shown in Figure 6, the structure of described PID arithmetic module 23 is, the one of resistance R11 terminates the anti-phase defeated of amplifier U2B
Entering end, the other end, as the feedback input end of PID arithmetic module 23, is designated as port P_F_in, and with in power sampling module 22
Port P_F be connected, resistance R12 one termination amplifier U2B in-phase input end, the other end sets as PID arithmetic module 23
Putting input, be designated as port P_set_in, and be connected with the port P_set in power setting module 21, the homophase of amplifier U2B is defeated
Enter end and terminate amplifier U2B by resistance R14 ground connection, the one of the indirect resistance R13 of inverting input and outfan, resistance R15
Outfan, the inverting input of another termination amplifier U3A, the in-phase input end of amplifier U3A passes through resistance R16 ground connection, anti-phase defeated
Enter the indirect resistance R17 of end and outfan, one end of the outfan connecting resistance R18 of amplifier U3A, another termination fortune of resistance R18
Put the inverting input of U4B；The outfan of one termination amplifier U2B of resistance R19, the inverting input of another termination amplifier U3B,
The in-phase input end of amplifier U3B passes through resistance R20 ground connection, inverting input and the indirect electric capacity C1 of outfan, output termination electricity
One end of resistance R21, the inverting input of another termination amplifier U4B of resistance R21；The output of one termination amplifier U2B of resistance R22
End, one end of another termination capacitor C2, one end of another termination capacitor C3 of electric capacity C2, one end of resistance R24 and amplifier U4A
Inverting input, the other end of electric capacity C3 and the outfan of another termination amplifier U4A of resistance R24 and one end of resistance R25, fortune
Put the in-phase input end of U4A by resistance R23 ground connection, the inverting input of another termination amplifier U4B of resistance R25；Amplifier U4B
In-phase input end by resistance R27 ground connection, the indirect resistance R26 of inverting input and outfan, outfan is as PID arithmetic
The outfan of module 23, is designated as port I_ctr；The positive supply termination power VCC of amplifier U3A and amplifier U4A, negative supply termination electricity
Source VEE.The feedback voltage controlling voltage and power sampling module 22 output of the output of power setting module 21 is at PID arithmetic mould
Comparing in block 23 and seek difference and carry out PID arithmetic, operation result drives the driving electric current of module for controlling LD.
Embodiment 7LD drives module
As it is shown in fig. 7, the structure that described LD drives module 24 is, the homophase input of termination amplifier U5B of resistance R28
End, the other end drives the electric current of module 24 to control input as LD, is designated as port I_ctr_in, and with PID arithmetic module 24
Port I_ctr be connected, the in-phase input end of amplifier U5B as LD drive module 24 overtemperture control input, be designated as port
Alert_ctr_in, and be connected with the port Alert_ctr of overtemperature power-off modular 25, the inverting input of amplifier U5B and output
The indirect electric capacity C4 of end, one end of inverting input also connecting resistance R29 and one end of resistance R30, another termination electricity of resistance R29
One end of another termination adjustable resistance W2 of source VCC, resistance R30 and the outfan of amplifier U5A, another termination of adjustable resistance W2
One end of resistance R31, the inverting input of another termination amplifier U5A of resistance R31, the in-phase input end of amplifier U5A and anti-phase
Input is connected with one end of resistance R32 and one end of resistance R33 respectively, one end of the other end connecting resistance Rs1 of resistance R32 and
The source electrode of field effect transistor Q1, the other end of the other end connecting resistance Rs1 of resistance R33, also connect the port LD+ of laser module 1, field
The drain electrode of effect pipe Q1 meets power supply VCC, and grid connects the outfan of amplifier U5B, and the positive and negative power end of amplifier U5A connects power supply respectively
VCC and ground.LD drives the Control of Voltage that module 24 is exported by PID arithmetic module, produces and drives electric current, is used for controlling laser die
The Output optical power of block 1.
Embodiment 8 overtemperature processing module
As shown in Figure 8, the structure of described overtemperature processing module 25 is, a termination power VCC of resistance R34, the other end
Connect in-phase input end and one end of adjustable resistance W3 of amplifier U6B, the other end ground connection of adjustable resistance W3, amplifier U6B anti-phase
Input is connected with outfan, and also one end with resistance R36 is connected, and as alarm temperature display end, is designated as port Alert_
Disp, resistance R36 another termination amplifier U6A in-phase input end, the positive-negative power end of amplifier U6A connect respectively power supply VCC and
Ground, the indirect resistance R37 of in-phase input end and outfan, one end of anti-phase input terminating resistor R35, the other end of resistance R35
As the input of overtemperature processing module 25, it is connected with the port NTC+ of laser module 1, the output termination field effect of amplifier U6A
Should the grid of pipe Q2, the anode of the source electrode sending and receiving optical diode D2 of field effect transistor Q2, drain the report as overtemperature processing module 25
Alert control output end, drives the port Alertlert_ctr_in of module 24 to be connected, the minus earth of light emitting diode with LD.Super
The port NTC+ of the input termination laser module 1 of temperature processing module 25, for the voltage of monitoring port NTC+, adjustable resistance W3
For arranging alarm temperature value, the output voltage of amplifier U6B and the output voltage of amplifier U6A have together decided on by amplifier U6A structure
The reference voltage of comparator become, due to integrated in laser module 1 be the critesistor of negative temperature coefficient, therefore in temperature
Time relatively low, resistance is higher, and the voltage of port NTC+ is the highest, and the comparator now reverse voltage that amplifier U6A is constituted is more than homophase electricity
Pressure, is output as 0, and field effect transistor Q2 is ended, and the most whole overtemperature processing module 25 is the equal of to drive module 24 to break from LD,
Do not affect LD and drive the normal work of module 24；When temperature is increased to the alarm temperature set, the voltage of port NTC+ declines
To the in-phase end voltage of the comparator constituted less than amplifier U6A, it is output as the voltage close to VCC so that field effect transistor Q2 turns on,
Light emitting diode D2 (the overtemperature alarm display lamp 57 being i.e. positioned on front panel 5) is lit, the current potential of end mouth Alert_ctr simultaneously
Being approximately 0, LD is driven the control voltage of the input of module 24 to be fixed to 0 by this port, thus without producing electric current output, from
And cut off the driving electric current of laser module 1, in temperature comes back to safety range, just can rework.Due to two
The output voltage of amplifier U6A different (respectively 0 and close to VCC), the ratio that therefore under two states, amplifier U6A is constituted under kind of state
The reference voltage of relatively device is the most different so that this overtemperature processing module 25 has certain return difference characteristic, after overtemperature alarm occurs,
Operating temperature return to less than will not recover at once during alarm temperature drive electric current, but need operating temperature drop to one lower
Value could recover drive electric current.
Embodiment 9 soft-start module
As it is shown in figure 9, the structure of described soft-start module 26 is, a termination power VCC of switch S1, another terminates electricity
One end of resistance R38 and the negative electrode of diode D3, the other end ground connection of resistance R38, the one of the anode connecting resistance R39 of diode D3
End, one end of resistance R40 and the in-phase input end of amplifier U7A, the other end ground connection of resistance R39, another termination electricity of resistance R40
Source VCC, the positive-negative power end of amplifier U7A meets power supply VCC and ground, one end of anti-phase input terminating resistor R41 and resistance R42 respectively
One end, one end of outfan connecting resistance R43 and one end of resistance R44, the other end ground connection of resistance R41, another of resistance R42
The grid of another termination field effect transistor Q3 of termination power VCC, resistance R43, the base of another termination audion Q4 of resistance R44
Pole, the source ground of field effect transistor Q3, the negative electrode of drain electrode sending and receiving optical diode D4, the anode connecting resistance R45 of light emitting diode D4
One end, another termination power VCC of resistance R45, the emitter stage of audion Q4 meets power supply VCC, the one of colelctor electrode connecting resistance R46
End, one end of electric capacity C5 and the grid of field effect transistor Q5, the other end of resistance R46 and the other end ground connection of electric capacity C5, field effect
The source ground of pipe Q5, drain the outfan as soft-start module 26, is designated as port SoftStart, drives module 24 with LD
Port Alert_ctr_in be connected.When switch S1 (start and control switch) disconnects, amplifier U7A is output as 0, now field effect transistor
Q3 ends, and light emitting diode D4 (i.e. relay indicating light 56 on front panel 5) will not be bright, and audion Q4 turns on so that field effect
The grid of pipe Q5 is high level, and close to the voltage of power supply VCC, field effect transistor Q5 turns on, and is equivalent to LD to drive the defeated of module 24
Entering to hold ground connection, will not produce driving electric current, when switching S1 Guan Bi, amplifier U7A exports close to power supply VCC voltage, field effect
Pipe Q3 turns on, and light emitting diode D4 is lit, simultaneously audion Q4 cut-off, but due to the effect of electric capacity C5, field effect transistor Q5
Grid voltage can't become 0 at once, and be as electric capacity C5 and be slowly declined to 0 by resistance R46 electric discharge, final field effect transistor
Q5 ends, and during this, LD drives the control voltage of the input of module 24 can slowly rise to setting value, laser die from 0
The luminous power of block 1 output also gradually rises to setting value from 0, it is achieved the effect of soft start.
Embodiment 10 driver module 4
As shown in Figure 10, the structure of described driver module 4 is, one end ground connection of slide rheostat W4, the other end
Power as driver module 4 shows input, is designated as port P_disp, with the port P_F phase of power sampling module 22
Even, the end of slide wire of slide rheostat W4 is connected with first selection end of SP3T switch S2, the in-phase input end of amplifier U7B
Temperature as driver module 4 shows input, is designated as port T_disp, is connected with the port NTC+ of laser module 1,
The inverting input of amplifier U7B is connected with outfan, and also one end with slide rheostat W5 is connected, another of slide rheostat W5
End ground connection, second selection end of end of slide wire order cutter three throw switch S2, one end ground connection of slide rheostat W6, other end conduct
The alarm temperature display input of driver module 4, is designated as port A_disp, with the port Alert_ of overtemperature processing module 25
Disp is connected, the 3rd the selection end of the end of slide wire order cutter three throw switch S2 of slide rheostat W6, SP3T switch S2's
One end of common port connecting resistance R47, the in-phase input end of another termination amplifier U8A of resistance R47, the positive-negative power of amplifier U8A
End connects power supply VCC and ground, one end of anti-phase input terminating resistor R48 and one end of resistance R49, the other end of resistance R48 respectively
Ground connection, one end of another termination adjustable resistance W7 of resistance R49, the outfan of another termination amplifier U8A of adjustable resistance W7, and
As the outfan of driver module 4, it is connected with the signal input part of gauge outfit 50 in front panel 5；SP3T switch S2 uses
Select physical quantity (output, operating temperature, alarm temperature) to be shown and be converted into before suitable magnitude of voltage delivers to
Gauge outfit 50 in plate 5 shows, by slide rheostat W4, slide rheostat W5, slide rheostat W6 and adjustable resistance W7
The magnitude of voltage finally shown can be numerically equal to the numerical value of physical quantity to be shown.
Embodiment 11 front panel
As shown in figure 11, the structure of described front panel 5 has gauge outfit 50, display pattern 51, on and off switch 52, power setting
53, temperature arranges 54, overtemperature is preset 55, relay indicating light 56, overtemperature alarm display lamp 57, laser output mouth 58 and output control
System 59；Described gauge outfit 50 is the digital voltage gauge outfit of 4 half, and display pattern 51 is the hilted broadsword three of driver module 4
Throw switch S2, on and off switch 52 is the total power switch of whole device, and power setting 53 is the slip in power setting module 21
The adjusting knob of rheostat W1, it is the slide rheostat for regulating operating temperature in temperature control modules 3 that temperature arranges 54
Adjusting knob, overtemperature preset 55 is the adjusting knob of the adjustable resistance W3 in overtemperature processing module 25, and relay indicating light 56 is
Light emitting diode D4 in soft-start module 26, overtemperature alarm display lamp 57 is the light emitting diode in overtemperature processing module 25
D2, laser output mouth 58 is connected with the tail optical fiber of laser module 1, and it is the switch S1 in soft-start module 26 that output controls 59.
Claims (3)
1. having a high stability laser pumping source for overheat protection function, structure has laser module (1), power to control mould
Block (2) and temperature control modules (3), it is characterised in that structure also has driver module (3), described power control module
(2) module (24), overtemperature are driven by power setting module (21), power sampling module (22), PID arithmetic module (23), LD
Reason module (25) and soft-start module (26) are constituted；
The structure of described power setting module (21) is, a termination power VCC of resistance R1, and another terminates Zener diode D1
Negative electrode and one end of slide rheostat W1, the anode of Zener diode D1 and the other end ground connection of slide rheostat W1, slide
One end of the end of slide wire connecting resistance R2 of rheostat W1, the in-phase input end of another termination amplifier U1A of resistance R2, amplifier U1A
One end of anti-phase input terminating resistor R3 and one end of resistance R4, the other end of outfan connecting resistance R4, and as power setting
The outfan of module (21), is designated as the other end ground connection of port P_set, resistance R3, and the positive and negative power end of amplifier U1A connects respectively
Power supply VCC and ground；
The structure of described power sampling module (22) is, the in-phase input end of termination amplifier U1B of resistance R5, and as merit
One input of rate sampling module (22), is connected with the port PD+ of laser module (1), another termination amplifier of resistance R5
The in-phase input end of U2A, and as another input of power sampling module (22), with the port PD-of laser module (1)
Being connected, the inverting input of amplifier U1B and the indirect resistance R6 of outfan, the outfan of amplifier U1B is as power sampling module
(22) outfan, is designated as port P_F, one end of the inverting input of amplifier U1B also connecting resistance R7 and one end of resistance R8, electricity
One end of other end connecting resistance R9, one end of resistance R10 and the inverting input of amplifier U2A of resistance R8, the other end of resistance R10
Ground connection, the other end of resistance R7 and the outfan of another termination amplifier U2A of resistance R9, the positive and negative power end of amplifier U2A is respectively
Meet power supply VCC and power supply VEE；
The structure of described PID arithmetic module (23) is, the inverting input of termination amplifier U2B of resistance R11, the other end is made
For the feedback input end of PID arithmetic module (23), be designated as port P_F_in, and with the port P_F in power sampling module (22)
Being connected, the in-phase input end of termination amplifier U2B of resistance R12, the other end arranges input as PID arithmetic module (23)
End, is designated as port P_set_in, and is connected with the port P_set in power setting module (21), the in-phase input end of amplifier U2B
By resistance R14 ground connection, the output of termination amplifier U2B of the indirect resistance R13 of inverting input and outfan, resistance R15
End, the inverting input of another termination amplifier U3A, the in-phase input end of amplifier U3A passes through resistance R16 ground connection, inverting input
With the indirect resistance R17 of outfan, one end of the outfan connecting resistance R18 of amplifier U3A, another termination amplifier U4B of resistance R18
Inverting input；The outfan of one termination amplifier U2B of resistance R19, the inverting input of another termination amplifier U3B, amplifier
The in-phase input end of U3B passes through resistance R20 ground connection, inverting input and the indirect electric capacity C1 of outfan, outfan connecting resistance R21
One end, resistance R21 another termination amplifier U4B inverting input；The outfan of one termination amplifier U2B of resistance R22, separately
One end of one termination capacitor C2, one end of another termination capacitor C3 of electric capacity C2, one end of resistance R24 and amplifier U4A anti-phase
Input, the other end of electric capacity C3 and the outfan of another termination amplifier U4A of resistance R24 and one end of resistance R25, amplifier
The in-phase input end of U4A passes through resistance R23 ground connection, the inverting input of another termination amplifier U4B of resistance R25；Amplifier U4B
In-phase input end passes through resistance R27 ground connection, and the indirect resistance R26 of inverting input and outfan, outfan is as PID arithmetic mould
The outfan of block (23), is designated as port I_ctr；The positive supply termination power VCC of amplifier U3A and amplifier U4A, negative supply termination electricity
Source VEE；
Described LD drives the structure of module (24) to be that the in-phase input end of termination amplifier U5B of resistance R28, the other end is made
The electric current driving module (24) for LD controls input, is designated as port I_ctr_in, and with the port I_ of PID arithmetic module (24)
Ctr is connected, and the in-phase input end of amplifier U5B drives the overtemperture control input of module (24) as LD, is designated as port Alert_
Ctr_in, and being connected with the port Alert_ctr of overtemperature power-off modular (25), the inverting input of amplifier U5B and outfan it
Electric capacity C4, one end of inverting input also connecting resistance R29 and one end of resistance R30, another termination power of resistance R29 indirectly
One end of another termination adjustable resistance W2 of VCC, resistance R30 and the outfan of amplifier U5A, another termination electricity of adjustable resistance W2
One end of resistance R31, the inverting input of another termination amplifier U5A of resistance R31, the in-phase input end of amplifier U5A and anti-phase defeated
Enter end to be connected with one end of resistance R32 and one end of resistance R33 respectively, one end of the other end connecting resistance Rs1 of resistance R32 and field
The source electrode of effect pipe Q1, the other end of the other end connecting resistance Rs1 of resistance R33, also connect the port LD+ of laser module (1), field
The drain electrode of effect pipe Q1 meets power supply VCC, and grid connects the outfan of amplifier U5B, and the positive and negative power end of amplifier U5A connects power supply respectively
VCC and ground；
The structure of described overtemperature processing module (25) is, a termination power VCC of resistance R34, and another terminates the same of amplifier U6B
Phase input and one end of adjustable resistance W3, the other end ground connection of adjustable resistance W3, the inverting input of amplifier U6B and outfan
Being connected, also one end with resistance R36 is connected, and as alarm temperature display end, is designated as port Alert_disp, resistance R36's
Another termination amplifier U6A in-phase input end, the positive-negative power end of amplifier U6A connect respectively power supply VCC and ground, in-phase input end and
The indirect resistance R37 of outfan, one end of anti-phase input terminating resistor R35, the other end of resistance R35 is as overtemperature processing module
(25) input, is connected with the port NTC+ of laser module (1), the grid of output termination field effect transistor Q2 of amplifier U6A,
The anode of the source electrode sending and receiving optical diode D2 of field effect transistor Q2, the controlling alarm as overtemperature processing module (25) that drains exports
End, drives the port Alertlert_ctr_in of module (24) to be connected, the minus earth of light emitting diode with LD；
The structure of described soft-start module (26) is, a termination power VCC of switch S1, one end of other end connecting resistance R38
With the negative electrode of diode D3, the other end ground connection of resistance R38, one end of anode connecting resistance R39 of diode D3, resistance R40
One end and the in-phase input end of amplifier U7A, the other end ground connection of resistance R39, another termination power VCC of resistance R40, amplifier
The positive-negative power end of U7A connect respectively power supply VCC and ground, one end of anti-phase input terminating resistor R41 and one end of resistance R42, defeated
Go out one end and one end of resistance R44 of terminating resistor R43, the other end ground connection of resistance R41, another termination power of resistance R42
The grid of another termination field effect transistor Q3 of VCC, resistance R43, the base stage of another termination audion Q4 of resistance R44, field effect
The source ground of pipe Q3, the negative electrode of drain electrode sending and receiving optical diode D4, one end of the anode connecting resistance R45 of light emitting diode D4, electricity
Another termination power VCC of resistance R45, the emitter stage of audion Q4 meets power supply VCC, one end of colelctor electrode connecting resistance R46, electric capacity C5
One end and the grid of field effect transistor Q5, the other end of resistance R46 and the other end ground connection of electric capacity C5, the source electrode of field effect transistor Q5
Ground connection, drain the outfan as soft-start module (26), is designated as port SoftStart, with the port that LD drives module (24)
Alert_ctr_in is connected；
The structure of described driver module (4) is, one end ground connection of slide rheostat W4, and the other end drives mould as display
The power display input of block (4), is designated as port P_disp, is connected with the port P_F of power sampling module (22), slip variable resistance
The end of slide wire of device W4 is connected with first selection end of SP3T switch S2, and the in-phase input end of amplifier U7B drives as display
The temperature display input of dynamic model block (4), is designated as port T_disp, is connected with the port NTC+ of laser module (1), amplifier
The inverting input of U7B is connected with outfan, and also one end with slide rheostat W5 is connected, another termination of slide rheostat W5
Ground, second selection end of end of slide wire order cutter three throw switch S2, one end ground connection of slide rheostat W6, the other end is as display
Drive the alarm temperature display input of module (4), be designated as port A_disp, with the port Alert_ of overtemperature processing module (25)
Disp is connected, the 3rd the selection end of the end of slide wire order cutter three throw switch S2 of slide rheostat W6, SP3T switch S2's
One end of common port connecting resistance R47, the in-phase input end of another termination amplifier U8A of resistance R47, the positive-negative power of amplifier U8A
End connects power supply VCC and ground, one end of anti-phase input terminating resistor R48 and one end of resistance R49, the other end of resistance R48 respectively
Ground connection, one end of another termination adjustable resistance W7 of resistance R49, the outfan of another termination amplifier U8A of adjustable resistance W7, and
As the outfan of driver module (4), it is connected with the signal input part of gauge outfit 50 in front panel (5)；
The structure of described front panel (5) has gauge outfit (50), display pattern (51), on and off switch (52), power setting (53), temperature
Degree arrange (54), overtemperature preset (55), relay indicating light (56), overtemperature alarm display lamp (57), laser output mouth (58) and
Output controls (59)；Described gauge outfit (50) is the digital voltage gauge outfit of 4 half, and display pattern (51) is that display drives mould
The SP3T switch S2 of block (4), on and off switch (52) is the total power switch of whole device, and power setting (53) is that power sets
Putting the adjusting knob of slide rheostat W1 in module (21), it is that being used in temperature control modules (3) is adjusted that temperature arranges (54)
The adjusting knob of the slide rheostat of joint operating temperature, overtemperature preset (55) is the adjustable resistance W3 in overtemperature processing module (25)
Adjusting knob, relay indicating light (56) is the light emitting diode D4 in soft-start module (26), overtemperature alarm display lamp (57)
Being the light emitting diode D2 in overtemperature processing module (25), laser output mouth (58) is connected with the tail optical fiber of laser module (1),
It is the switch S1 in soft-start module (26) that output controls (59).
A kind of high stability laser pumping source with overheat protection function the most according to claim 1, it is characterised in that
The parameter of each device used in power control module (2) is that resistance R1:9.1k Ω, resistance R2～resistance R4 are 10k Ω,
Resistance R5:1.5k Ω, resistance R6, resistance R7, resistance R9, resistance R10 are 180k Ω, resistance R8:20k Ω, resistance R11～electricity
Resistance R16 is 10k Ω, resistance R17:20k Ω, and resistance R18:10k Ω, resistance R19, resistance R20 are 20k Ω, resistance R21:
10k Ω, resistance R22:200k Ω, resistance R23:150k Ω, resistance R24:180k Ω, resistance R25～resistance R28 be 10k Ω,
Resistance R29:1M Ω, resistance R30:10k Ω, resistance 31:200k Ω, resistance R32, resistance R33 be 10k Ω, resistance R34:
100k Ω, resistance R35:200k Ω, resistance R36:10k Ω, resistance R37:180k Ω, resistance R38～resistance R45 be 20k Ω,
Resistance R46:2M Ω, resistance R47～resistance R49 are 10k Ω, resistance Rs1:0.1 Ω, slide rheostat W1:10k Ω, adjustable
Resistance W2:200k Ω, adjustable resistance W3:10k Ω, slide rheostat W4～slide rheostat W6 are 10k Ω, adjustable resistance
W7:200k Ω, electric capacity C1, electric capacity C2 are 1uF, electric capacity C3:22pF, electric capacity C4:0.47uF, electric capacity C5:1uF, voltage stabilizing two pole
Pipe D1:2.5V, light emitting diode D2 are red light emitting diodes, light emitting diode D4 state green LED, diode D3:
1N4148, field effect transistor Q1:IRF540, field effect transistor Q2, field effect transistor Q3 and field effect transistor Q5 be k1482, audion Q4:
S9012, amplifier U1A and amplifier U1B be model be two working cells of the integrated double operational of LM358P, amplifier U2A and amplifier
U2B be second model be two working cells of the integrated double operational of LM358P, amplifier U3A and amplifier U3B are the 3rd types
Number be two working cells of the integrated double operational of LM358P, amplifier U4A and amplifier U4B be the 4th model be the collection of LM358P
Become two working cells of double operational, amplifier U5A and amplifier U5B be the 5th model be two of the integrated double operational of LM358P
Working cell, amplifier U6A and amplifier U6B be the 6th model be two working cells of the integrated double operational of LM358P, amplifier
U7A and amplifier U7B be the 7th model be two working cells of the integrated double operational of LM358P, amplifier U8A is the 8th type
Number being a working cell of the integrated double operational of LM358P, power supply VCC is+12V, and power supply VEE is-12V.
A kind of high stability laser pumping source with overheat protection function the most according to claim 1 and 2, its feature exists
In, described laser module (1) is JDSU LC96 butterfly encapsulated laser module.
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| CN109412005A (en) * | 2018-12-26 | 2019-03-01 | 吉林大学 | A kind of program control type high efficiency laser pump (ing) source module |
| CN109412001A (en) * | 2018-12-26 | 2019-03-01 | 吉林大学 | A kind of digital high efficiency laser pumping source |
| CN109412002A (en) * | 2018-12-26 | 2019-03-01 | 吉林大学 | A kind of high efficiency laser pump (ing) source device |
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| CN109842016A (en) * | 2019-03-06 | 2019-06-04 | 山西大学 | A kind of semiconductor laser drive source with comprehensive protective device |
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| CN109546528B (en) * | 2018-12-26 | 2020-08-07 | 吉林大学 | Impedance self-adaptive laser diode driving circuit |
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| CN108054628B (en) * | 2017-12-05 | 2019-03-19 | 深圳市创鑫激光股份有限公司 | Control system, laser, the equipment with laser of laser |
| CN108054628A (en) * | 2017-12-05 | 2018-05-18 | 深圳市创鑫激光股份有限公司 | Control system, laser, the equipment with laser of laser |
| CN109713564A (en) * | 2018-12-26 | 2019-05-03 | 吉林大学 | A kind of impedance self-adaptive laser diode drive |
| CN109412001B (en) * | 2018-12-26 | 2020-05-22 | 吉林大学 | Digital high-efficiency laser pumping source |
| CN109412005A (en) * | 2018-12-26 | 2019-03-01 | 吉林大学 | A kind of program control type high efficiency laser pump (ing) source module |
| CN109412001A (en) * | 2018-12-26 | 2019-03-01 | 吉林大学 | A kind of digital high efficiency laser pumping source |
| CN109412002A (en) * | 2018-12-26 | 2019-03-01 | 吉林大学 | A kind of high efficiency laser pump (ing) source device |
| CN109346908A (en) * | 2018-12-26 | 2019-02-15 | 吉林大学 | A kind of portable high-efficiency rate laser pump (ing) source module |
| CN109343637A (en) * | 2018-12-26 | 2019-02-15 | 吉林大学 | A kind of voltage-tracing type constant-current source device |
| CN109713564B (en) * | 2018-12-26 | 2020-08-07 | 吉林大学 | Impedance self-adaptive laser diode driver |
| CN109546528B (en) * | 2018-12-26 | 2020-08-07 | 吉林大学 | Impedance self-adaptive laser diode driving circuit |
| CN109412005B (en) * | 2018-12-26 | 2020-05-22 | 吉林大学 | Program-controlled high-efficiency laser pumping source module |
| CN109358695A (en) * | 2018-12-26 | 2019-02-19 | 吉林大学 | A kind of loaded self-adaptive constant-current source device |
| CN109842016B (en) * | 2019-03-06 | 2020-08-04 | 山西大学 | Semiconductor laser driving source with comprehensive protection device |
| CN109842016A (en) * | 2019-03-06 | 2019-06-04 | 山西大学 | A kind of semiconductor laser drive source with comprehensive protective device |
| CN110416866A (en) * | 2019-08-16 | 2019-11-05 | 平湖新纳通信技术有限公司 | Light puts output balancing unit and its method |
| CN110416866B (en) * | 2019-08-16 | 2023-11-21 | 平湖新纳通信技术有限公司 | Light emission output balancing device and method thereof |
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