CN104330595B - Laser DC Module power source aging electronic load device - Google Patents
Laser DC Module power source aging electronic load device Download PDFInfo
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- CN104330595B CN104330595B CN201410605500.8A CN201410605500A CN104330595B CN 104330595 B CN104330595 B CN 104330595B CN 201410605500 A CN201410605500 A CN 201410605500A CN 104330595 B CN104330595 B CN 104330595B
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- 230000032683 aging Effects 0.000 title claims abstract description 32
- 230000003321 amplification Effects 0.000 claims abstract description 36
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 36
- 238000005070 sampling Methods 0.000 claims abstract description 12
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims abstract description 8
- 239000004065 semiconductor Substances 0.000 claims description 9
- 230000001012 protector Effects 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004088 simulation Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000002431 foraging effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention discloses a kind of laser DC Module power source aging electronic load device, including step reference signal generation module, load current sampling module, error amplification module, Isobarically Control module, drive module, load port interface and power supply module, one input of the output termination error amplification module of the step reference signal generation module, another input of the output termination error amplification module of load current sampling module, the input of the output termination Isobarically Control module of error amplification module, the input of the output termination drive module of Isobarically Control module, drive module driving load interface end；Power supply module is powered to error amplification module and drive module respectively.Present apparatus mode of operation required when can be instead of LASER Light Source real work, also causes DC Module to carry out work with actual use band load situation, carrys out aging, can save aging cost, and can realize simulation effect.
Description
Technical field
The present invention relates to component aging field, more particularly, to a kind of laser DC Module power source aging electronics
Load device.
Background technology
Photomechanical equipment driving power supply, it is necessary to do long-time reliability burn-in test before ray machine is installed to, and aging power supply
Load must can simulate the situation of actual loading, and can cost-effective embodiment economic benefit.In the practical application of ray machine
In, it is in step type current-mode that the load in ray machine needed for laser, which is, so the output current of DC driven module is also step
Type current-mode, and the E-load machine in practical application can not simulate the actual band of DC Module power supply completely and carry feelings
Condition, usual E-load machine has 3 kinds of load models, constant voltage mode, constant current mode, constant-resistance pattern.It is any in this 3 kinds of patterns
Pattern can not all simulate the dynamic load variations form of the rank saltus step of step direct current 3（0A—3A—6A）.
In the traditional aging techniques of power supply, resistance cost is low but resistance is easily damaged at work, and resistance aging
Time length can also make load there is very big deviation, influence ageing results, and it is aobvious that aged load is done using E-load machine
The cost of right aging is very high and does not reach the effect of simulation actual use load, is unfavorable for optimizing performance ratio.
The content of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the present invention proposes a kind of laser DC Module power source aging Electronic Negative
Carry and put, the device can simulate the working condition of electric current when LASER Light Source band is carried, and aged load is can serve as again, reduce simultaneously
Cost needed for aging equipment.
To achieve these goals, the technical scheme is that：
A kind of laser DC Module power source aging electronic load device, including step reference signal generation module, load
Current sample module, error amplification module, Isobarically Control module, drive module, load port interface and power supply module, the step
One input of the output termination error amplification module of reference signal generation module, the output termination of load current sampling module is missed
Another input of poor amplification module, the input of the output termination Isobarically Control module of error amplification module, Isobarically Control mould
The input of the output termination drive module of block, drive module driving load interface end；Power supply module amplifies mould to error respectively
Block and drive module are powered.
The present invention combines the practical application characteristic of DC Module, step signal is accessed in electronic load, for driving electricity
Son load, makes the step of load and the band of power supply module carry and act in agreement, so as to substitute actual laser load, realizes other
Load the simulation effect that can not be realized.Step reference signal source is generated using step reference signal generation module, sampling direct current is supplied
The load current of electric module, compares sampled signal with a reference source the Isobarically Control module that aged load device is controlled after amplification,
So that Isobarically Control module obtains to start working after this control signal, the drive signal of Isobarically Control module output is by putting
After big circuit amplification, access load port interface control driving load makes load be worked according to step reference switches, so that straight
Load is also drawn in the load of stream power supply module power supply with step benchmark, can so be reached instead of LASER Light Source real work when institute
The mode of operation needed, also cause DC Module with actual use band load situation carry out work, carry out aging, can save aging into
This, and simulation effect can be realized.
Brief description of the drawings
Fig. 1 is application module circuit block diagram of the invention.
Fig. 2 is the circuit theory diagrams of the laser DC Module power source aging electronic load device of the present invention.
Fig. 3 is step waveform accompanying drawing.
Embodiment
The present invention will be further described below in conjunction with the accompanying drawings, but embodiments of the present invention are not limited to this.
Such as Fig. 1, a kind of laser DC Module power source aging electronic load device, including step reference signal generation module
1st, load current sampling module 2, error amplification module 3, Isobarically Control module 4, drive module 5, load port interface 6 and power supply mould
Block 7, an input of the output termination error amplification module 3 of the step reference signal generation module 1, load current sampling mould
Another input of the output termination error amplification module 3 of block 2, the output termination Isobarically Control module 4 of error amplification module 3
Input, the input of the output termination drive module 5 of Isobarically Control module 4, the driving load interface end 6 of drive module 5；Power supply
Module 7 is powered to error amplification module 3 and drive module 5 respectively.
Such as Fig. 2, load current sampling module 2 include operational amplifier U66A, U68A, U68B, U68C, U68D, amplifier with
With device U74A, MOSFET pipe MOS29, MOS30, MOS31, MOS32, triode Q7, Q8 and resistance R825, R820, R838,
R843、R844；Amplification module is recommended in triode Q7, Q8 formation；
The output end of error amplification module 3 connects operational amplifier U66A in-phase input end, resistance by resistance R820
R820 also connects operational amplifier U66A output end, operational amplifier U66A output termination amplifier follower by resistance R825
U74A positive input terminal, amplifier follower U74A output end connect respectively after recommending amplification module operational amplifier U68A,
U68B, U68C, U68D in-phase end, operational amplifier U68A, U68B, U68C, U68D output end connect MOSFET pipes respectively
MOS29, MOS30, MOS31, MOS32 grid, MOS29, MOS30, MOS31, MOS32 source class connect operational amplifier respectively
U68A, U68B, U68C, U68D end of oppisite phase；MOS29, MOS30, MOS31, MOS32 source class respectively by resistance R838, R843,
R844, R848 connect another input of error amplification module.
In the present embodiment, by the break-make for the power supply module for controlling drive circuit, power MOSFET is carried to control to draw
Break-make, drawing control signal and power MOSFET, load is synchronous, and such aged load is just equivalent to practical laser light source works
Situation.
Ray machine light source driving dc source actual loading waveform is in step type, so being necessary during aging dc source
Carry out aging according to actual loading.It is that actual step waveform is generated with U71 in present embodiment, then from output end bearing power
MOSFET source class is sampled, and the electric current that dc source is loaded passes through sampling resistor R838, R843, R844, R848, obtains sampling letter
Number and U71（MCU3121+NE555）Step waveform comparison after amplification give U66, this comparison amplified signal is added in the same of U66A
Xiang Duan so that U66A output voltages start or power cut-off according to step waveform.
U66A in-phase end connects step signal, and this signal is amplified by R825 and R820 to be exported after certain multiple, this output
Voltage is added in U68A, U68B, U68C, U68D in-phase end after Q7, Q8 recommend amplification again after amplifier follower U74A,
And MOS29, MOS30, MOS31, MOS32 source class feedback signal are added in the end of oppisite phase of correspondence amplifier, for controlling aged load
Switch-off power MOSFET during overload.Because U66A output voltage is worked with step waveform, so U68A, U68B, U68C, U68D
Output voltage is also that each self-corresponding MOSFET is driven according to the waveform of step.Drive waveforms and actual phase can so be made
Match somebody with somebody.
Operational amplifier U66A in-phase end connects step voltage, and this voltage is amplified defeated after certain multiple by R825 and R820
Go out, this output voltage is added in U68A, U68B, U68C, U68D after Q7, Q8 recommend amplification again after amplifier follower U74A
In-phase end, and MOS29, MOS30, MOS31, MOS32 source class feedback signal be added in correspondence amplifier end of oppisite phase, for controlling
Switch-off power MOSFET when aged load overloads.Due to U66A output voltage with step waveform work, so U68A, U68B,
U68C, U68D output voltage are also that each self-corresponding MOSFET is driven according to the waveform of step.So power supply, which is drawn, carries with step
Waveform, which is drawn, to be carried, and is matched with drive waveforms, accomplishes that power supply draws carrier wave shape to follow actual drive waveforms to work.
Laser in the present embodiment also includes load overheat protector with DC Module power source aging electronic load device
Module, the load overheat protector module includes operational amplifier U67B, resistance RT4, R828, photo-coupler U69, resistance RT4
One termination operational amplifier U67B positive terminal, another termination operational amplifier U67B of resistance RT4 end of oppisite phase, operational amplifier
U67B end of oppisite phase is also grounded by resistance R828, operational amplifier U67B output termination photo-coupler U69 input, coupling
Clutch U69 output termination recommends amplification module.
Operational amplifier U67B is when operating ambient temperature is raised, and RT4 resistances reduce, and R828 partial pressures increase, U67B is anti-phase
Terminal voltage increases, after its in-phase end voltage, U67B output low levels, optocoupler U69 internal body diodes and triode operation, draws
Low Q7, Q8 driving voltage, makes Q7, Q8 cisco unity malfunction, and make it that whole circuit is stopped, and serves protective effect.
The load overheat protector module also includes LED 4, and the negative pole of LED 4 connects computing and put
Big device U67B output end, positive pole, which connects, recommends amplification module.
Laser DC Module power source aging electronic load device in the present embodiment also includes being used to protect metal-oxide-semiconductor
Diode D35, D36, D38, D37, diode D35, D36, D38, D37 be connected on respectively metal-oxide-semiconductor MOS29, MOS30, MOS31,
Between MOS32 source-drain electrode, the positive pole of diode connects MOS source class, and negative pole connects the drain electrode of metal-oxide-semiconductor；
D35, D36, D38, D37 are used for protecting corresponding power MOSFET, and electric capacity of voltage regulation EC34, EC33, EC36, EC35 make
For the capacitive load of aging electronic load, play a part of voltage stabilizing, electric capacity of voltage regulation EC34, EC33, EC36, EC35 are connected on respectively
Between metal-oxide-semiconductor MOS29, MOS30, MOS31, MOS32 source-drain electrode.
In the traditional aging techniques of power supply, resistance cost is low but resistance is easily damaged at work, and resistance aging
Time length can also make load there is very big deviation, influence ageing results, and it is aobvious that aged load is done using E-load machine
The cost of right aging is very high and does not reach the effect of simulation actual use load, is unfavorable for optimizing performance ratio.
The device of the present invention can simulate the working condition of electric current when LASER Light Source band is carried, and aged load is can serve as again,
The cost needed for aging equipment is reduced simultaneously.In the present embodiment, by the break-make for the supply voltage for controlling drive circuit,
To control to draw the break-make for carrying power MOSFET, make control signal synchronous with power MOSFET drawings load, such aged load is just etc.
Imitate in the situation of practical laser light source works.
The embodiment of invention described above, is not intended to limit the scope of the present invention..It is any in this hair
Made modifications, equivalent substitutions and improvements etc. within bright spiritual principles, should be included in the claim protection of the present invention
Within the scope of.
Claims (5)
1. a kind of laser DC Module power source aging electronic load device, it is characterised in that including the generation of step reference signal
Module, load current sampling module, error amplification module, Isobarically Control module, drive module, load port interface and power supply mould
Block, an input of the output termination error amplification module of the step reference signal generation module, load current sampling module
Output termination error amplification module another input, error amplification module output termination Isobarically Control module input
End, the input of the output termination drive module of Isobarically Control module, drive module driving load interface end；Power supply module is distinguished
Powered to error amplification module and drive module；
The load current sampling module includes operational amplifier U66A, U68A, U68B, U68C, U68D, amplifier follower
U74A, metal-oxide-semiconductor MOS29, MOS30, MOS31, MOS32, triode Q7, Q8 and resistance R825, R820, R838, R843, R844；
Amplification module is recommended in triode Q7, Q8 formation；
The output end of the error amplification module connects operational amplifier U66A in-phase input end, resistance R820 by resistance R820
Operational amplifier U66A output end, operational amplifier U66A output termination amplifier follower U74A are also connect by resistance R825
Positive input terminal, amplifier follower U74A output end connect respectively after recommending amplification module operational amplifier U68A, U68B,
U68C, U68D in-phase end, operational amplifier U68A, U68B, U68C, U68D output end connect respectively metal-oxide-semiconductor MOS29,
MOS30, MOS31, MOS32 grid, MOS29, MOS30, MOS31, MOS32 source class connect respectively operational amplifier U68A,
U68B, U68C, U68D end of oppisite phase；MOS29, MOS30, MOS31, MOS32 source class respectively by resistance R838, R843, R844,
R848 connects another input of error amplification module.
2. laser according to claim 1 DC Module power source aging electronic load device, it is characterised in that the dress
Put also include load overheat protector module, the load overheat protector module include operational amplifier U67B, resistance RT4, R828,
Photo-coupler U69, resistance RT4 mono- termination operational amplifier U67B positive terminal, another termination operational amplifier U67B of resistance RT4
End of oppisite phase, operational amplifier U67B end of oppisite phase is also grounded by resistance R828, operational amplifier U67B output termination light
Coupler U69 input, coupler U69 output termination recommends amplification module.
3. laser according to claim 2 DC Module power source aging electronic load device, it is characterised in that described negative
Carrying overheat protector module also includes LED 4, and the negative pole of LED 4 connects operational amplifier U67B output
End, positive pole, which connects, recommends amplification module.
4. laser according to claim 1 DC Module power source aging electronic load device, it is characterised in that the dress
Diode D35, D36, D38, the D37 for also including being used to protect metal-oxide-semiconductor are put, diode D35, D36, D38, D37 are connected on MOS respectively
Between pipe MOS29, MOS30, MOS31, MOS32 source-drain electrode, the positive pole of diode connects MOS source class, and negative pole connects the leakage of metal-oxide-semiconductor
Pole.
5. laser according to claim 1 DC Module power source aging electronic load device, it is characterised in that the dress
Putting also includes electric capacity of voltage regulation EC34, EC33, EC36, EC35, and electric capacity of voltage regulation EC34, EC33, EC36, EC35 are connected on metal-oxide-semiconductor respectively
Between MOS29, MOS30, MOS31, MOS32 source-drain electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410605500.8A CN104330595B (en) | 2014-10-30 | 2014-10-30 | Laser DC Module power source aging electronic load device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410605500.8A CN104330595B (en) | 2014-10-30 | 2014-10-30 | Laser DC Module power source aging electronic load device |
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| CN104330595A CN104330595A (en) | 2015-02-04 |
| CN104330595B true CN104330595B (en) | 2017-10-10 |
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| CN110221565B (en) * | 2019-07-03 | 2024-08-13 | 深圳市联明电源股份有限公司 | Aging feedback load control circuit and control method for pulse current working state |
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Address after: Kezhu road high tech Industrial Development Zone, Guangzhou city of Guangdong Province, No. 233 510670 Patentee after: VTRON GROUP Co.,Ltd. Address before: Kezhu road high tech Industrial Development Zone, Guangzhou city of Guangdong Province, No. 233 510670 Patentee before: VTRON TECHNOLOGIES Ltd. |
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Granted publication date: 20171010 |