CN207559264U - A kind of current following device of laser pumping lamp - Google Patents
A kind of current following device of laser pumping lamp Download PDFInfo
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- CN207559264U CN207559264U CN201721461894.XU CN201721461894U CN207559264U CN 207559264 U CN207559264 U CN 207559264U CN 201721461894 U CN201721461894 U CN 201721461894U CN 207559264 U CN207559264 U CN 207559264U
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Abstract
The utility model belongs to laser power supply technical field.A kind of current following device of laser pumping lamp is disclosed, step-up trigger module and main power module including connection power supply and pumping lamp；Step-up trigger module boosts to the supply voltage, punctures pumping lamp, and cut off its high pressure after pumping lamp afterflow success and generate circuit；Main power module includes the MOS switch pipe, inductance and the fly-wheel diode for being parallel to the inductance and pumping lamp both ends that are series between power supply and pumping lamp, after pumping lamp breakdown, the main power module is formed into a loop with power supply, pumping lamp, MOS switch pipe high frequency break-make exports pre-burning electric current to pumping lamp；Wherein, high pressure lateral coil of the inductance for step-up trigger module after pumping lamp afterflow success.The main power module of the utility model uses BUCK constant-current circuits, simple in structure, small, low in energy consumption, at low cost without setting current-limiting resistance.
Description
Technical field
The utility model is related to laser power supply technical field more particularly to a kind of current following devices of laser pumping lamp.
Background technology
From laser be born since, laser technology with application experienced swift and violent development, even to this day, jewel,
New-energy automobile, medical instrument, the application of all kinds of advanced IT product such as mobile phones, laptop etc. are more and more extensive,
Increasingly important role is played in our daily lifes.Core component of the Laser Power Devices as laser, performance
Quality directly affects the technical indicator and application quality of laser, and in excitation is excited, pumping lamp is as the important of excitaton source
Whether device is capable of the key of steady operation, even more influence laser stability.
The pumping lamp of laser equipment needs to keep before normal high current loop Discharge illuminating stable glow discharge pre-burning shape
State is conducive to extend in this way the working life of pumping lamp and ensures the stability of laser output.Above-mentioned pre-igniting state is realized at present
Relatively common method is using the pre-burning circuit of high-power resistance concatenation pumping lamp, and this circuit mainly has following deficiency：1、
Since voltage drops in use current-limiting resistance mode, larger power dissipation can be generated on current-limiting resistance, the fever that works long hours is serious,
Aggravate the heat dissipation load of Laser Power Devices complete machine；2nd, due to fever and the limitation of volume, pre-burning electric current can only be arranged within 0.5A,
It easily turns off the light for the longer pumping lamp of arc length, makes laser fails；3rd, for the pumping lamp of different parameters, difference can only be replaced
Current-limiting resistance match, it is inconvenient to use.
Utility model content
The technical problem to be solved by the utility model is to for the drawbacks described above of the prior art, provide a kind of laser
The current following device of device pumping lamp without setting current-limiting resistance, can greatly simplify the triggering of pumping lamp and pre-burning circuit.
The technical issues of the utility model will be solved further is, for the drawbacks described above of the prior art, provides one
The current following device of kind laser pumping lamp, freewheel current are continuously adjusted, and adapt to the requirement of various parameters pumping lamp.
To solve the problems, such as this, the utility model provides a kind of current following device of laser pumping lamp, including connection power supply with
The step-up trigger module of pumping lamp and main power module；The step-up trigger module boosts to the supply voltage, punctures pumping lamp,
And it cuts off its high pressure after pumping lamp afterflow success and generates circuit；The main power module include being series at power supply and pumping lamp it
Between MOS switch pipe, inductance and the fly-wheel diode for being parallel to the inductance and pumping lamp both ends, pumping lamp breakdown after, it is described
Main power module is formed into a loop with power supply, pumping lamp, the MOS switch pipe high frequency break-make, and pre-burning electric current is exported to pumping lamp；Its
In, high pressure lateral coil of the inductance for step-up trigger module after pumping lamp afterflow success.
Further, which further includes the constant current adjustment module being set between pumping lamp and main power module, described
Constant current adjustment module acquisition pumping lamp pre-burning real-time current signal, and according to the real-time current signal and given freewheel current signal
Difference output modulated voltage signal, main power module according to the modulated voltage signal control MOS switch pipe break-make.
Further, the constant current adjustment module includes current sampling module, given current module and compares amplification module,
The current sampling module acquires pumping lamp pre-burning real-time current signal；The relatively amplification module to the real-time current signal and
The electric current that given freewheel current module gives is compared and enlarged, the output pulse width modulation voltage directly proportional to error current
Signal.
Further, the step-up trigger module includes trigger control module, boost module, and the trigger control module connects
Pumping lamp freewheel current signal, in the non-afterflow success of pumping lamp, selection powers on and boost module, generates high pressure；It is pumping
Main discharge circuit is connected in selection during the lamp afterflow success of Pu, and cutoff high generates circuit.
Further, the main power module further includes the power driver module for driving the MOS switch pipe break-make,
The power driver module carries out power amplification to the modulated voltage signal of the relatively amplification module output.
Further, inductance fly-wheel diode in parallel with pumping lamp both ends, the main power module are BUCK constant currents
Circuit topological structure.
Further, which further includes isolation rectification filter module, backward for carrying out isolation rectification filtering to alternating current
Step-up trigger module, main power module provide power supply.
The utility model, to power boost, realizes the triggering of pumping lamp high pressure by step-up trigger module；By in pumping lamp
The high pressure lateral coil of step-up trigger module is imported into main power module as inductance after interior arcing conducting, forms main power module
BUCK constant-current circuits, you can stable pre-burning electric current is exported, without setting current-limiting resistance, simple in structure, small, low in energy consumption,
It is at low cost.Further, module is adjusted by constant current to compare pumping lamp pre-burning real-time current and given freewheel current, and
Adjust the signal of driving MOS switch pipe break-make rapidly according to the comparing result, you can realize pre-burning real-time current and setting value one
It causes so that the present apparatus is applicable to the pumping lamp of different size.
Description of the drawings
Attached drawing 1 is the utility model principle block diagram；
Attached drawing 2 is the utility model electrical block diagram.
Specific embodiment
The utility model will be further described with specific embodiment with reference to the accompanying drawings of the specification.
As shown in Figure 1, the laser pumping lamp current following device of the utility model includes：Isolation rectification filter module 10 is used
The rectifying and wave-filtering after by mains isolation provides triggering and afterflow use that high direct voltage carries out laser pumping lamp；Step-up trigger
Module 20 for high direct voltage to be switched on or switched off, while plays the function of inductance element after high pressure triggering；Main power module
30, for high direct voltage to be converted, laser pumping lamp is made to obtain the freewheel current of pre-burning, and module 40 is adjusted according to constant current
Feedback signal adjusts the drive signal of MOS switch pipe；Constant current adjusts module 40, for acquiring real-time current during pumping lamp pre-burning
Signal, while receive given freewheel current signal, comparing the backward main power module 30 of amplification through two signals exports feedback signal, makes
Pumping lamp pre-burning electric current is obtained to stablize.
As shown in Figure 1, 2, isolation rectification filter module 10 connects alternating current, after alternating current is isolated and is filtered using commercial power rectification simultaneously
Supply step-up trigger module 20 and 30 power supply of main power module.
Step-up trigger module 20 includes trigger control module 21 and boost module 22.Trigger control module 21 is according to pumping lamp
Pre-burning current signal controls being switched on or switched off for power supply and boost module 22, that is, high pressure is controlled to generate being switched on or switched off for circuit,
In the present embodiment, trigger control module 21 connect with the current sampling module 41 of constant current adjustment module 40 and obtains pumping lamp pre-burning electricity
Flow signal.When the pumping lamp 51 of laser 50 is in original state, pumping lamp pre-burning electric current is zero, and trigger control module 21 controls
Power supply and boost module 22 are connected, and boost module 22 boosts to supply voltage, generate high pressure, instantaneous pressure breakdown pumping lamp
51, arcing and main power module 30 in lamp is caused to be formed into a loop；51 afterflow of pumping lamp success, forms pumping lamp pre-burning electric current, touches
Hair control module 21 controls power supply and boost module 22 to disconnect, i.e., cutoff high generates circuit, while is connected and swashed by contactor
The main discharge circuit of light device unpumped section, at this point, the high pressure lateral coil 221 of boost module 22 is automatically imported main power module 30,
Play inductive function.
Constant current adjustment module 40 includes current sampling module 41, given value of current module 42 and compares amplification module 43.Electric current
Sampling module 41 acquires current signal, that is, real-time current signal during pumping lamp pre-burning in real time, and given value of current module 42 is according to pumping
The i.e. given freewheel current signal of the corresponding freewheel current signal of parameter setting of lamp 51, compares amplification module 43 to above-mentioned two signal
The pulse width modulated voltage signal directly proportional to error current is obtained after being compared and enlarged, and is exported to main power module 30
The signal, to ensure that pumping lamp pre-burning electric current is consistent with setting value.Compare amplification module 43 and use common comparator IC, do not need to
Special adjusting chip can export stable pre-burning electric current to pumping lamp.
Main power module 30 includes MOS switch pipe, for the modulated voltage signal progress to comparing the output of amplification module 43
The high pressure lateral coil that power amplification is imported to drive the power driver module 31 of MOS switch pipe, in pumping lamp 51 after arcing conducting
221 i.e. inductance and the sustained diode in parallel with the both ends of the inductance and pumping lamp 51.Main power module 30 uses BUCK
Constant-current circuit topology, high direct voltage is converted, and the modulated voltage signal that the feedback of module 40 is adjusted according to constant current adjusts MOS switch pipe
Drive signal, make MOS switch pipe high frequency turn-on and turn-off, inductive energy storage when MOS switch pipe is connected, when MOS switch pipe turns off
By sustained diode afterflow, achieve the purpose that pumping lamp pre-burning electric current is consistent with setting value.Specifically, since pumping lamp exists
There is variation in internal resistance in photoreduction process of discharging, and lead to pumping lamp pre-burning current variation and setting value there are deviation, in the present apparatus
The rapid adjust automatically of drive signal pulse width, driving MOS switch pipe conducting and close, inductive energy storage time change so that
Pumping lamp pre-burning real-time current stabilization is worked in setting value, will not be extinguished, and keeps stablizing, reliable pre-burning.
The high pressure lateral coil of step-up trigger module is imported main power module by the present apparatus in pumping lamp after arcing conducting, with
MOS switch pipe, pumping lamp, fly-wheel diode form BUCK constant-current circuits, do not need to setting current-limiting resistance, are pumped according only to using
The parameter of Pu lamp, cooperation output laser energy parameter, you can easily adjust trigger voltage and pre-burning electric current, simple in structure, body
Product is small, low in energy consumption, at low cost；Laser pumping part main discharge circuit is connected after high pressure elimination simultaneously, is greatly improved
The safety of laser equipment, reliability and economy.
Existing pumping lamp current following device is since high pressure triggering and afterflow use two circuits, if do not increased anti-two pole of high pressure
Pipe, continuous current circuit can be concatenated into when high pressure generates leads to continuous current circuit breakdown failure and the damage of peripheral element high pressure；And this dress
It puts high-voltage line and is connected on major loop with reference to zero level, therefore major loop is without additionally increasing anti-high-voltage diode.
It should be understood that above example is only to illustrate the technical solution of the utility model, it is rather than its limitations, right
For those skilled in the art, it can modify to the technical solution recorded in above-described embodiment or to which part skill
Art feature carries out equivalent replacement；And all such modifications and replacement, it should all belong to the protection of the appended claims for the utility model
Range.
Claims (7)
- A kind of 1. current following device of laser pumping lamp, which is characterized in that the step-up trigger mould including connection power supply and pumping lamp Block and main power module；The step-up trigger module boosts to the supply voltage, punctures pumping lamp, and its height is cut off after pumping lamp afterflow success Pressure generates circuit；The main power module includes the MOS switch pipe being series between power supply and pumping lamp, inductance and is parallel to the inductance With the fly-wheel diode at pumping lamp both ends, after pumping lamp breakdown, the main power module is formed into a loop with power supply, pumping lamp, institute MOS switch pipe high frequency break-make is stated, pre-burning electric current is exported to pumping lamp；Wherein, high pressure lateral coil of the inductance for step-up trigger module after pumping lamp afterflow success.
- 2. current following device according to claim 1, which is characterized in that the device, which further includes, is set to pumping lamp and main power Constant current adjustment module between module, the constant current adjustment module acquisition pumping lamp pre-burning real-time current signal, and according to the reality When current signal and given freewheel current signal difference output modulated voltage signal, main power module is according to the modulated voltage signal Control the break-make of MOS switch pipe.
- 3. current following device according to claim 2, which is characterized in that the constant current adjustment module includes current sample mould Block gives current module and compares amplification module, and the current sampling module acquires pumping lamp pre-burning real-time current signal；It is described Compare amplification module the given freewheel current signal of the real-time current signal and given current module is compared and enlarged, export The pulse width modulated voltage signal directly proportional to error current.
- 4. current following device according to claim 1 or 2, which is characterized in that the step-up trigger module includes triggering and controls Module and boost module, the trigger control module connect pumping lamp freewheel current signal, in the non-afterflow success of pumping lamp, selection Power on and boost module, generate high pressure；In pumping lamp afterflow success, main discharge circuit is connected in selection, and cutoff high generates Circuit.
- 5. current following device according to claim 3, which is characterized in that the main power module further includes described for driving The power driver module of MOS switch pipe break-make, the power driver module believe the modulation voltage of the relatively amplification module output Number carry out power amplification.
- 6. current following device according to claim 5, which is characterized in that the main power module is BUCK constant-current circuits topology Structure.
- 7. current following device according to claim 1 or 2, which is characterized in that the device further includes isolation rectification filter module, For being carried out to alternating current, isolation rectification filters backward step-up trigger module, main power module provides power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721461894.XU CN207559264U (en) | 2017-11-02 | 2017-11-02 | A kind of current following device of laser pumping lamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721461894.XU CN207559264U (en) | 2017-11-02 | 2017-11-02 | A kind of current following device of laser pumping lamp |
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| CN207559264U true CN207559264U (en) | 2018-06-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110165539A (en) * | 2019-05-24 | 2019-08-23 | 长春理工大学 | The adjustable output method in subpulse group interval and laser are realized in multi-step pumping |
-
2017
- 2017-11-02 CN CN201721461894.XU patent/CN207559264U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110165539A (en) * | 2019-05-24 | 2019-08-23 | 长春理工大学 | The adjustable output method in subpulse group interval and laser are realized in multi-step pumping |
| CN110165539B (en) * | 2019-05-24 | 2020-10-27 | 长春理工大学 | Method for realizing adjustable sub-pulse group interval output by multi-step pumping and laser |
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