CN208226667U - Laser driving apparatus - Google Patents
Laser driving apparatus Download PDFInfo
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- CN208226667U CN208226667U CN201820511895.9U CN201820511895U CN208226667U CN 208226667 U CN208226667 U CN 208226667U CN 201820511895 U CN201820511895 U CN 201820511895U CN 208226667 U CN208226667 U CN 208226667U
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Semiconductor Lasers (AREA)
Abstract
The utility model relates to a kind of laser driving apparatus, comprising: first laser driving circuit comprising the first turn-off module and the first constant current conversion module.First turn-off module is connect with power supply.First constant current conversion module is connect with first laser module.Second laser driving circuit comprising the second turn-off module and the second constant current conversion module.Second turn-off module is connect with power supply.Second constant current conversion module is connect with second laser module.First constant pressure conversion module, one end are connected between the first turn-off module and the first constant current conversion module, and the other end connects switching control module.Second constant pressure conversion module, one end are connected between the second turn-off module and the second constant current conversion module, and the other end connects switching control module.Switching control module, connection public electricity-using load.The laser driving apparatus of the disclosure had not only reduced the cost of backup, but also did not influenced the major function of each section in laser equipment and the durability of equipment can be enhanced.
Description
Technical field
The utility model relates to technical field of laser illumination more particularly to a kind of laser driving apparatus.
Background technique
In the laser driven power supply of movie theatre, when there is respective power source failure, especially lost for the constant voltage source of control system
When effect, viewing suspension, or starting failure will lead to.Showing and influencing for film will be delayed if engineering staff has little time maintenance
Other programme arrangements of movie theatre, cause customer complaint to rise.When being shown broadcasting using high-performance engineering machine, if its power supply is prominent
Crash will lead to displaying broadcasting and be obstructed, causes to perplex.
In the related technology, if powered respectively using multiple power supplys, after certain power-fail, the corresponding function being powered just is lost
Lose, especially master control system power supply lose when, entire complete machine can not all work, can only wait it is to be repaired use again, time cost is excessively high.
If it is volume and cost is reduced, power supply is put together, but inlet wire shares fuse, once the failure of certain assembly function will lead to guarantor
Dangerous silk is burnt, and complete machine is equally out of power.If using mutual standby redundancy using communication power supply, more power need to be occupied and cost
Rise, the cost that will lead to product is excessively high, reduces product competitiveness.
Utility model content
Technical problem
In view of this, the technical problems to be solved in the utility model is, a kind of relatively reliable Laser Driven how is provided
Device.
Solution
According to the first aspect of the embodiments of the present disclosure, a kind of laser driving apparatus is provided, comprising:
First laser driving circuit comprising concatenated first turn-off module and the first constant current conversion module, the first open circuit
Module is connect with power supply, and the first constant current conversion module is connect with first laser module；
Second laser driving circuit comprising concatenated second turn-off module and the second constant current conversion module, the second open circuit
Module is connect with power supply, and the second constant current conversion module is connect with second laser module；
First constant pressure conversion module, one end are connected between the first turn-off module and the first constant current conversion module, another
One end connects switching control module；
Second constant pressure conversion module, one end are connected between the second turn-off module and the second constant current conversion module, another
One end connects switching control module；
Switching control module, connection public electricity-using load.
For above-mentioned laser driving apparatus, in one possible implementation,
The first laser driving circuit further includes the first electric energy conversion module；
First turn-off module, first electric energy conversion module and the first constant current conversion module are sequentially connected in series；
One end of the first constant pressure conversion module is connected to first turn-off module and the first electric energy modulus of conversion
Between block, the other end connects switching control module.
For above-mentioned laser driving apparatus, in one possible implementation,
The first laser driving circuit further includes the first electric energy conversion module；
First turn-off module, first electric energy conversion module and the first constant current conversion module are sequentially connected in series；
One end of the first constant pressure conversion module is connected to first electric energy conversion module and first constant current turns
It changes the mold between block, the other end connects switching control module.
For above-mentioned laser driving apparatus, in one possible implementation,
The second laser driving circuit further includes the second electric energy conversion module；
Second turn-off module, second electric energy conversion module and the second constant current conversion module are sequentially connected in series；
One end of the second constant pressure conversion module is connected to second turn-off module and the second electric energy modulus of conversion
Between block, the other end connects switching control module.
For above-mentioned laser driving apparatus, in one possible implementation,
The second laser driving circuit further includes the second electric energy conversion module；
Second turn-off module, second electric energy conversion module and the second constant current conversion module are sequentially connected in series；
One end of the second constant pressure conversion module is connected to second electric energy conversion module and second constant current turns
It changes the mold between block, the other end connects switching control module.
For above-mentioned laser driving apparatus, in one possible implementation, the switching control module connection heat dissipation
At least one of device, communication device and micro-control unit MCU (Microcontroller Unit, micro-control unit).
For above-mentioned laser driving apparatus, in one possible implementation, the switching control module connection heat dissipation
At least one of device, communication device and micro-control unit MCU.
For above-mentioned laser driving apparatus, in one possible implementation, the switching control module connection heat dissipation
At least one of device, communication device and micro-control unit MCU.
For above-mentioned laser driving apparatus, in one possible implementation, first turn-off module and second breaks
Road module includes following any one:
Fuse, self- recoverage fuse, varistor and Transient Suppression Diode.
According to the second aspect of an embodiment of the present disclosure, a kind of laser light source, including above-mentioned laser driving apparatus are provided.
Beneficial effect
The laser driving apparatus of the disclosure respectively carries out the key components such as constant pressure conversion module and constant current conversion module only
Vertical backup, forms special dual backup, had not only reduced the cost of backup, but also does not influence the main of each section in laser equipment
Function makes laser equipment in face of having very strong robustness when the failure of its members.
According to below with reference to the accompanying drawings to detailed description of illustrative embodiments, the other feature and aspect of the utility model will
It becomes apparent.
Detailed description of the invention
Comprising in the description and constitute the attached drawing of part of specification and specification to together illustrate this practical new
Exemplary embodiment, feature and the aspect of type, and for explaining the principles of the present invention.
Fig. 1 is a kind of structure chart of laser driving apparatus shown according to an exemplary embodiment.
Fig. 2 is the structure chart according to a kind of laser driving apparatus shown in an example of an exemplary embodiment.
Fig. 3 is a kind of structure chart of laser driving apparatus shown in an example according to another exemplary embodiment.
Fig. 4 is a kind of structure chart of laser driving apparatus shown in an example according to another exemplary embodiment.
Fig. 5 is a kind of structure chart of laser driving apparatus shown in an example according to another exemplary embodiment.
Fig. 6 is a kind of structure chart of laser driving apparatus shown in an example according to another exemplary embodiment.
Fig. 7 is a kind of structure chart of laser driving apparatus shown in an example according to another exemplary embodiment.
Specific embodiment
The various exemplary embodiments, feature and aspect of the utility model are described in detail below with reference to attached drawing.In attached drawing
Identical appended drawing reference indicates element functionally identical or similar.Although the various aspects of embodiment are shown in the attached drawings,
It is unless otherwise indicated, it is not necessary to attached drawing drawn to scale.
Dedicated word " exemplary " means " being used as example, embodiment or illustrative " herein.Here as " exemplary "
Illustrated any embodiment should not necessarily be construed as preferred or advantageous over other embodiments.
In addition, in order to better illustrate the utility model, given in specific embodiment below numerous specific
Details.It will be appreciated by those skilled in the art that without certain details, the utility model equally be can be implemented.In some realities
In example, LED driver well known to those skilled in the art, means, element and circuit are not described in detail, in order to highlight
The purport of the utility model.
Fig. 1 is a kind of structure chart of laser driving apparatus shown according to an exemplary embodiment.As shown in Figure 1, this swashs
Drive unit may include:
First laser driving circuit comprising concatenated first turn-off module 20 and the first constant current conversion module 21, first
Turn-off module 20 is connect with power supply, and the first constant current conversion module 21 is connect with first laser module 22.
Second laser driving circuit comprising concatenated second turn-off module 30 and the second constant current conversion module 31, second
Turn-off module 30 is connect with power supply 10, and the second constant current conversion module 31 is connect with second laser module 32.
First constant pressure conversion module 41, one end be connected to the first turn-off module 20 and the first constant current conversion module 21 it
Between, the other end connects switching control module 43.
Second constant pressure conversion module 42, one end be connected to the second turn-off module 30 and the second constant current conversion module 31 it
Between, the other end connects switching control module 43.
Switching control module 43, connection public electricity-using load 50.
In the present embodiment, power supply is separately connected two laser drive circuits, and laser drive circuit can will power
The electric energy of power supply output is converted to laser-driven signal, for driving laser module to issue laser.Specifically, in first laser
In driving circuit, the first constant current conversion module 21 can future self powered supply 10 electric energy be converted to constant current to drive
One laser module 22 issues laser.In second laser driving circuit, the second constant current conversion module 31 can future self-powered electricity
The electric energy in source 10 is converted to constant current to drive second laser module 32 to issue laser.Also, the first constant current conversion module 21
It is connect by the first turn-off module 20 with power supply 10, the second constant current conversion module 31 passes through the second turn-off module 30 and power supply
Power supply 10 connects, and forms the backup of constant current conversion module.
In one possible implementation, first laser module 22 may include the luminous submodule of the road N first laser,
In, N is positive integer.Corresponding, the electric current of first laser driving circuit can be converted to the road N by the first constant current conversion module 21
Constant current, so that every road constant current can drive the luminous submodule sending laser of first laser all the way.
In one possible implementation, second laser module 32 may include the luminous submodule of the road M second laser,
In, M is positive integer.Corresponding, the electric current of first laser driving circuit can be converted to the road M by the second constant current conversion module 31
Constant current, so that every road constant current can drive the luminous submodule sending laser of second laser all the way.
It should be noted that M may be the same or different with N, those skilled in the art can according to need selection and close
The lasing fluorescence submodule of suitable quantity, it is not limited here.
In the disclosure, the first turn-off module 20 can control between the first constant current conversion module 21 and power supply 10
On-off between on-off and the first constant pressure conversion module 41 and power supply 10.Second turn-off module 30 can control second
Between on-off and the second constant pressure conversion module 42 and power supply 10 between constant current conversion module 31 and power supply 10
On-off.The backup of Laser Driven and system electricity consumption is realized in first turn-off module 20 and the cooperation of the second turn-off module 30.
As an example of the present embodiment, first turn-off module and the second turn-off module may include following any
One: fuse, self- recoverage fuse, varistor and Transient Suppression Diode.
Wherein, fuse (fuse) can also be referred to as current insurance silk, can play overload protective function.It is correct in circuit
Fuse is disposed, fuse will be when current anomaly be increased to certain height and temperature, itself fusing cutting electric current,
Circuit safety is protected to run.
Self-recovery fuse can be a kind of overcurrent electrical protection component.It can be using macromolecule organic polymer in height
It presses, high temperature, under conditions of vulcanization reaction, after adding particulate materials, is process by special technique.When route occurs
When short circuit or overload, the heat for flowing through the high current generation of self-recovery fuse melts polymer resin, and volume increases rapidly, shape
At high-impedance state, operating current is reduced rapidly, to be limited circuit and be protected.After troubleshooting, self- recoverage insurance
Again crystallisation by cooling, volume contraction, conducting particles re-form conductive path to silk, and self-recovery fuse reverts to low resistive state,
To complete the protection to circuit, without artificial replacement.
Varistor (Voltage Dependent Resistor, VDR) can be a kind of with nonlinear wind vibration
Resistance device.It can be used for carrying out voltage clamping when circuit bears over-voltage, absorb extra electric current to protect sensor
Part.
Transient Suppression Diode (Transient Voltage Suppressor, TVS), can be a kind of diode
High-effect protection device.It, can be quickly by the high resistant of its two interpolar when the two poles of the earth of TVS are by reversed transient state high energy impact events
Resistance is Low ESR, absorbs up to thousands of watts of surge power, makes the voltage clamp of two interpolars in a predetermined value, effectively protect
The precision components in electronic circuit are protected, from the damage of various surge pulses.
It should be noted that those skilled in the art, which can according to need, selects other suitable overloads/overcurrent protection member
Part is as the first turn-off module and the second turn-off module, it is not limited here.
In practical application scene, first laser driving circuit and second laser driving circuit can be worked at the same time, can also
To back up mutually.
In the case where first laser driving circuit and second laser driving circuit work at the same time, if first laser drives
The disabler of circuit such as first laser module overcurrent or short circuit can disconnect the first constant current by the first turn-off module 20 and turn
Change the mold the connection between block 21 and power supply 10.At this moment the second constant current conversion module 31 of second laser driving circuit can be just
Often work guarantees that second laser module 32 continues normal luminous.
In the case where first laser drive circuit works, the backup of second laser driving circuit, if first laser drives
The disabler of circuit can be disconnected between the first constant current conversion module 21 and power supply 10 by the first turn-off module 20
Connection.At this moment, it can make the second constant current conversion module 31 of second laser driving circuit by the second turn-off module 30 and supply
It is connected between power supply 10, so that second laser module 32 shines.In addition, second laser drive circuit works, first swash
The principle of light drive circuit backup is similar with first laser drive circuit works, the backup of second laser driving circuit, herein no longer
It repeats.
In practical application scene, the first constant pressure conversion module and the second constant pressure conversion module can be worked at the same time, can also
To back up mutually.
In the case where the first constant pressure conversion module 41 and the second constant pressure conversion module 42 work at the same time, the conversion of the first constant pressure
Respective Partial Power can be used in module 41 and the second constant pressure conversion module 42.If the first constant pressure conversion module 41 and/or
The disabler of first laser driving circuit can disconnect the first constant pressure conversion module 41 and power supply by the first turn-off module 20
Connection between power supply 10.At this moment the second constant pressure conversion module 42 can work normally, and load normal power supply for public electricity-using,
In, itself whole power can be used in the second constant pressure conversion module 42, and own partial power also can be used.
Select suitable magnitude of power as the first constant pressure it should be noted that those skilled in the art can according to need
Conversion module 41 and the second constant pressure conversion module 42 used power when working, it is not limited here.
In the case where the work of the first constant pressure conversion module, the backup of the second constant pressure conversion module, if first laser drives
The disabler of circuit can be disconnected between the first constant pressure conversion module 41 and power supply 10 by the first turn-off module 20
Connection.At this moment, can to connect between the second constant pressure conversion module 42 and power supply 10 by the second turn-off module 30, and
It will be switched to the second constant pressure conversion module 42 for the power supply of the public electricity-using load supplying of system by switching control module 43, from
And it is public electricity-using load supplying.In addition, the principle and the of the work of the second constant pressure conversion module, the backup of the first constant pressure conversion module
The work of one constant pressure conversion module, the backup of the second constant pressure conversion module are similar, and details are not described herein.
The laser driving apparatus of the disclosure respectively carries out the key components such as constant pressure conversion module and constant current conversion module only
Vertical backup, forms special dual backup, had not only reduced the cost of backup, but also does not influence the main of each section in laser equipment
Function makes laser equipment in face of having very strong robustness when the failure of its members.Therefore, the durable of equipment can be enhanced
Property, it avoids showing the customer complaint problem that the generations such as interrupts or can not show due to laser equipment.
Fig. 2 is the structure chart according to a kind of laser driving apparatus shown in an example of an exemplary embodiment.Such as Fig. 2
Shown, the difference between Fig. 2 and Fig. 1 is, the first laser driving circuit further includes the first electric energy conversion module 23.It is described
First turn-off module 20, first electric energy conversion module 23 and the first constant current conversion module 21 are sequentially connected in series.Wherein, institute
State the first constant pressure conversion module 41 one end be connected to first turn-off module 20 and first electric energy conversion module 23 it
Between, the other end connects switching control module 43.
In the present embodiment, the first electric energy conversion module 23 can be used to implement electric energy conversion to improve the first constant current conversion
The power factor of module 21, first laser module 22 reduces the loss of supply.
In one possible implementation, as shown in figure 3, Fig. 3 the difference from Fig. 2 is that, first constant pressure
One end of conversion module 41 is connected between first electric energy conversion module 23 and the first constant current conversion module 21, another
One end connects switching control module 43.
In the present embodiment, the first electric energy conversion module 23 can be used to implement electric energy conversion to improve the first constant current conversion
Module 21, first laser module 22, the first constant pressure conversion module 41, switching control module 43 and public electricity-using load 50 power
Factor reduces the loss of supply.
Fig. 4 is a kind of structure chart of laser driving apparatus shown in an example according to another exemplary embodiment.Such as
Shown in Fig. 4, the difference between Fig. 4 and Fig. 1 is, the second laser driving circuit further includes the second electric energy conversion module 33.
Second turn-off module 30, second electric energy conversion module 33 and the second constant current conversion module 31 are sequentially connected in series.Its
In, one end of the second constant pressure conversion module 42 is connected to second turn-off module 30 and second electric energy conversion module
Between 33, the other end connects switching control module 43.
In the present embodiment, the second electric energy conversion module 33 can be used to implement electric energy conversion to improve the second constant current conversion
The power factor of module 31, second laser module 32 reduces the loss of supply.
In one possible implementation, as shown in figure 5, Fig. 5 the difference from Fig. 4 is that, second constant pressure
One end of conversion module 42 is connected between second electric energy conversion module 33 and the second constant current conversion module 31, the other end
Connect switching control module 43.
In the present embodiment, the second electric energy conversion module 33 can be used to implement electric energy conversion to improve the second constant current conversion
Module 31, second laser module 32, the second constant pressure conversion module 42, switching control module 43 and public electricity-using load 50 power
Factor reduces the loss of supply.
In the present embodiment, the first electric energy conversion module 23 and the second electric energy conversion module 33 can be PFC (Power
Factor Correction, PFC) or high-voltage converter, it is not limited here.
In one possible implementation, as shown in fig. 6, the first laser driving circuit further includes that the first electric energy turns
Block 23 is changed the mold, and the second laser driving circuit further includes the second electric energy conversion module 33.
First turn-off module 20, first electric energy conversion module 23 and the first constant current conversion module 21 are successively
Series connection.Wherein, one end of the first constant pressure conversion module 41 both can connect in first turn-off module 20 and described
Between one electric energy conversion module 23, also can connect first electric energy conversion module 23 and the first constant current conversion module 21 it
Between, the other end of the first constant pressure conversion module 41 connects switching control module 43.
Second turn-off module 30, second electric energy conversion module 33 and the second constant current conversion module 31 are successively
Series connection.Wherein, one end of the second constant pressure conversion module 42 both can connect turns in the second turn-off module 30 and the second electric energy
It changes the mold between block 33, also can connect between the second electric energy conversion module 33 and the second constant current conversion module 31, the first constant pressure
The other end of conversion module 41 connects switching control module 43.
The first electric energy conversion module and the second electric energy are turned it should be noted that those skilled in the art can according to need
Module is connected to the different location in the laser driving apparatus, with adjustment circuit different piece power factor.Herein not
It limits.
The laser driving apparatus of the disclosure respectively carries out the key components such as constant pressure conversion module and constant current conversion module only
Vertical backup, forms special dual backup, had not only reduced the cost of backup, but also does not influence the main of each section in laser equipment
Function makes laser equipment in face of having very strong robustness when the failure of its members.Therefore, the durable of equipment can be enhanced
Property, it avoids showing the customer complaint problem that the generations such as interrupts or can not show due to laser equipment.
Fig. 7 is a kind of structure chart of laser driving apparatus shown in an example according to another exemplary embodiment.Such as
Shown in Fig. 7, the public electricity-using load of equipment such as projector built-in system further includes but is not limited to connection radiator 501, leads to
Interrogate device 502 and micro-control unit MCU503.The switching control module 43 connects radiator 501, communication device 502 and micro-
At least one of control unit MCU503.
As an example of the present embodiment, the output of the first constant pressure conversion module 41 and the second constant pressure conversion module 42,
Convergeing to switching control module 43 by constant voltage output is 50 power supply of public electricity-using load.In this way, one wherein can be ensured
In the case that turn-off module disconnects, it can guarantee to obtain confession from the turn-off module that public electricity-using load can not disconnected from another
Electricity prevents public electricity-using from loading the phenomenon that can not powering that is, under single failure mode.
In this example, power supply mode can include but is not limited to it is following any one:
Mode one: it only with a constant pressure conversion module to public electricity-using load supplying, fails in the constant pressure conversion module
When, automatically switch to the power supply of another constant pressure conversion module.Such as, it is possible to use only the first constant pressure conversion module 41 is to commons
Electric loading 50 is powered, and when the failure of the first constant pressure conversion module 41, automatically switches to the second constant pressure conversion module 42 to commons
Electric loading 50 is powered.Wherein, the first constant pressure conversion module 41 and the second constant pressure conversion module 42 quota in power supply work.
Mode two: using two constant pressure conversion modules simultaneously to public electricity-using load supplying.In common power supply, each constant pressure
Conversion module only uses respective Partial Power.When one of them two constant pressure conversion module failure, the conversion of another constant pressure
Module is public electricity-using load supplying using its quota power.For example, the first constant pressure conversion module 41 and second can be adopted simultaneously
Constant pressure conversion module 42 is simultaneously to 50 power supply of public electricity-using load.Wherein, in common power supply, the first constant pressure conversion module 41 with
Second constant pressure conversion module 42 all only uses respective Partial Power.When the failure of the first constant pressure conversion module 41, two constant pressures turn
Mold changing block 42 stands alone as 50 power supply of public electricity-using load using quota power.
In a kind of application example, major function (such as laser drive circuit) be divided into 2 parts (such as first laser drive
Dynamic circuit and second laser driving circuit).The input terminal of each section use respectively a fuse circuit breaking device (such as first open circuit
Module and the second turn-off module).The single failure (such as the failure of any laser drive circuit) of rear end in this way, by corresponding insurance
Breaking device disconnects power supply, and another part can continue to work normally.
Each laser drive circuit separately includes constant current conversion module, and constant current conversion module is used to energy is changed into multichannel perseverance
The mode of stream drives corresponding multi-path laser module to issue laser, and specific number can be depending on disparity items.
Each laser drive circuit also separately includes electric energy conversion module, and electric energy conversion module can be PFC
PFC or high pressure conversion module etc., for realizing electric energy conversion function.
System element (public electricity-using load as escribed above) takes electricity from two constant pressure conversion modules.Electricity can be taken from electric energy
Before conversion module, after also can use electrical power conversion module, the function of two constant pressure conversion modules is the same.Any one
Constant pressure conversion module can support system power supply.The output of two constant pressure conversion modules is autotomyed by what constant voltage output was converged
Change backup part (such as switching control module).Usually only one constant pressure conversion module exports.When the constant pressure conversion module loses
When effect, the output of another constant pressure conversion module is automatically switched to.Or two constant pressure conversion modules export simultaneously, all only use respectively
Partial Power.When one of failure, another stands alone as whole system power elements using quota power.
The public electricity-using part of power source internal, if MCU and communication power supply or radiator fan are powered, by the perseverance after backing up certainly
Pressure output power supply.In this way under the mode of single laser drive circuit failure, it would not cannot power.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replacement, it should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with the power
Subject to the protection scope that benefit requires.
Claims (8)
1. a kind of laser driving apparatus characterized by comprising
First laser driving circuit comprising concatenated first turn-off module and the first constant current conversion module, the first turn-off module
It is connect with power supply, the first constant current conversion module is connect with first laser module；
Second laser driving circuit comprising concatenated second turn-off module and the second constant current conversion module, the second turn-off module
It is connect with power supply, the second constant current conversion module is connect with second laser module；
First constant pressure conversion module, one end are connected between the first turn-off module and the first constant current conversion module, the other end
Connect switching control module；
Second constant pressure conversion module, one end are connected between the second turn-off module and the second constant current conversion module, the other end
Connect switching control module；
Switching control module, connection public electricity-using load.
2. laser driving apparatus according to claim 1, which is characterized in that
The first laser driving circuit further includes the first electric energy conversion module；
First turn-off module, first electric energy conversion module and the first constant current conversion module are sequentially connected in series；
One end of the first constant pressure conversion module be connected to first turn-off module and first electric energy conversion module it
Between, the other end connects switching control module.
3. laser driving apparatus according to claim 1, which is characterized in that
The first laser driving circuit further includes the first electric energy conversion module；
First turn-off module, first electric energy conversion module and the first constant current conversion module are sequentially connected in series；
One end of the first constant pressure conversion module is connected to first electric energy conversion module and the first constant current modulus of conversion
Between block, the other end connects switching control module.
4. laser driving apparatus according to any one of claim 1 to 3, which is characterized in that
The second laser driving circuit further includes the second electric energy conversion module；
Second turn-off module, second electric energy conversion module and the second constant current conversion module are sequentially connected in series；
One end of the second constant pressure conversion module be connected to second turn-off module and second electric energy conversion module it
Between, the other end connects switching control module.
5. laser driving apparatus according to any one of claim 1 to 3, which is characterized in that
The second laser driving circuit further includes the second electric energy conversion module；
Second turn-off module, second electric energy conversion module and the second constant current conversion module are sequentially connected in series；
One end of the second constant pressure conversion module is connected to second electric energy conversion module and the second constant current modulus of conversion
Between block, the other end connects switching control module.
6. laser driving apparatus as claimed in any of claims 1 to 3, which is characterized in that the switching control mould
Block connects at least one of radiator, communication device and micro-control unit MCU.
7. laser driving apparatus as claimed in any of claims 1 to 3, which is characterized in that the described first breaking mould
Block and the second turn-off module include following any one:
Fuse, self- recoverage fuse, varistor and Transient Suppression Diode.
8. a kind of laser light source, which is characterized in that including laser driving apparatus described in any one of claim 1 to 7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820511895.9U CN208226667U (en) | 2018-04-11 | 2018-04-11 | Laser driving apparatus |
| PCT/CN2018/118834 WO2019196432A1 (en) | 2018-04-11 | 2018-12-03 | Laser drive apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820511895.9U CN208226667U (en) | 2018-04-11 | 2018-04-11 | Laser driving apparatus |
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|---|---|
| CN208226667U true CN208226667U (en) | 2018-12-11 |
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| CN201820511895.9U Active CN208226667U (en) | 2018-04-11 | 2018-04-11 | Laser driving apparatus |
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| WO (1) | WO2019196432A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020253433A1 (en) * | 2019-06-19 | 2020-12-24 | 深圳光峰科技股份有限公司 | Power source switching circuit and power source apparatus |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070110111A1 (en) * | 2005-11-14 | 2007-05-17 | Shipp David D | Power system for ultraviolet lighting |
| CN102646917A (en) * | 2012-05-11 | 2012-08-22 | 中国科学院半导体研究所 | Drive circuit of laser source of laser projector |
| CN203840581U (en) * | 2014-05-16 | 2014-09-17 | 重庆瑞升康博电气有限公司 | LED lamp driving power supply having redundancy function |
-
2018
- 2018-04-11 CN CN201820511895.9U patent/CN208226667U/en active Active
- 2018-12-03 WO PCT/CN2018/118834 patent/WO2019196432A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020253433A1 (en) * | 2019-06-19 | 2020-12-24 | 深圳光峰科技股份有限公司 | Power source switching circuit and power source apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019196432A1 (en) | 2019-10-17 |
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