CN208571221U - A kind of driving circuit applied to lamp pump laser - Google Patents
A kind of driving circuit applied to lamp pump laser Download PDFInfo
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- CN208571221U CN208571221U CN201821265266.9U CN201821265266U CN208571221U CN 208571221 U CN208571221 U CN 208571221U CN 201821265266 U CN201821265266 U CN 201821265266U CN 208571221 U CN208571221 U CN 208571221U
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- pump laser
- lamp pump
- type triode
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Abstract
The utility model belongs to lamp pump laser technical field more particularly to a kind of driving circuit applied to lamp pump laser.The driving circuit for being applied to lamp pump laser includes: ADC chip, follows feed circuit, power collecting circuit and one or more push-pull driver circuit；Wherein, the ADC chip is used to the digital controlled signal of lamp pump laser being converted into analog quantity voltage；The external reference voltage reference circuit of the ADC chip or pressure stabilizing IC；It is described that follow feed circuit include operation amplifier circuit and one or more comparator circuit；The analog quantity voltage of the ADC chip output inputs the non-inverting input terminal of the operation amplifier circuit；The output end of the operation amplifier circuit accesses the non-inverting input terminal of one or more comparator circuit；The output end of each comparator circuit connects a push-pull driver circuit.The utility model is suitable for mass production and applies, and can obtain very big economic benefit.
Description
Technical field
The utility model belongs to lamp pump laser technical field more particularly to a kind of drive applied to lamp pump laser
Dynamic circuit.
Background technique
The driving circuit of lamp pump laser is a kind of solid state laser.The wavelength that lamp pump laser generates is in infrared
Optical frequencies has oscillation efficiency height, output power, steady operation and other merits.The application of lamp pump laser is taken at present
Obtained great progress.It, can be using change if wanting to change its laser energy and laser power typically for lamp pump laser
The mode of xenon lamp quantity.
Inventor has found during studying the utility model, the drive in the prior art applied to lamp pump laser
Dynamic circuit structure is excessively complicated, economic benefit is low, and furthermore the driving circuit in the prior art applied to lamp pump laser is difficult
Efficiency to ensure more xenon lamps of lamp pump laser is identical, is unfavorable for the laser of accurately and timely lamp pump laser output
Power.
Utility model content
Technology based on the above background, the utility model embodiment are intended to provide a kind of driving applied to lamp pump laser
Circuit, to solve one or more in above-mentioned multiple technical problems.
The utility model embodiment uses technical solution below:
One or more embodiment of the utility model discloses a kind of driving circuit applied to lamp pump laser.
The driving circuit applied to lamp pump laser include: ADC (Analog-to-digital converter) chip, with
With feed circuit, power collecting circuit and one or more push-pull driver circuit；Wherein, the ADC chip is used for lamp
The digital controlled signal of pump laser is converted into analog quantity voltage；The external reference voltage reference circuit of the ADC chip or
Pressure stabilizing IC (integrated circuit)；It is described follow feed circuit include operation amplifier circuit and one or more ratio
Compared with device circuit；The analog quantity voltage of the ADC chip output inputs the non-inverting input terminal of the operation amplifier circuit；The fortune
The output end for calculating amplifier circuit accesses the non-inverting input terminal of one or more comparator circuit；Each described comparison
The output end of device circuit connects a push-pull driver circuit；The power collecting circuit includes at least one photo resistance,
The photo resistance converts light energy into the inverting input terminal that analog quantity voltage inputs one or more comparator circuit；
The power circuit of one or more push-pull driver circuit connection lamp pump laser.
In one or more embodiment of the utility model, the non-inverting input terminal and output end of the comparator circuit
Between be parallel with resistance R203 and capacitor C101；The same phase of the output end of the operation amplifier circuit and the comparator circuit
Resistance R201 is in series between input terminal.
In one or more embodiment of the utility model, the power collecting circuit includes resistance R600 and photosensitive
Resistance R601；One end of the resistance R600 connects the photo resistance R601, and the other end of the resistance R600 accesses power supply；
The photo resistance R601 ground connection.
In one or more embodiment of the utility model, the push-pull driver circuit includes: PNP type triode
T300, NPN type triode T301, resistance R400, resistance R401, resistance R402 and resistance R403；The one of the resistance R400
End connects the comparator circuit, and the other end of the resistance R400 connects the base stage of the NPN type triode T301；The electricity
One end of resistance R401 connects the collector of the NPN type triode T301, and the other end of the resistance R401 connects the positive-negative-positive
The base stage of triode T300；One end of the resistance R402 connects the emitter of the NPN type triode T301, the resistance
The other end of R402 connects the collector of the PNP type triode T300；One end of the resistance R403 connects the NPN type three
The base stage of pole pipe T301, the other end of the resistance R403 connect the emitter of the NPN type triode T301；The NPN type
The emitter of triode T301 is grounded, and accesses power supply between the resistance R402 and the collector of the PNP type triode T300.
In one or more embodiment of the utility model, the external reference voltage reference circuit of ADC chip, institute
Stating reference voltage reference circuit includes: resistance R300, resistance R301, resistance R302, rheostat W100 and zener diode
D100；The input terminal of the zener diode D100 connects the VREF pin of the ADC chip；Power supply is via the resistance R301
Access the input terminal of the zener diode D100；The output end of the zener diode D100 is grounded；The rheostat W100
Connecting pin 1 and the ADC chip VREF pin between be connected with the resistance R300；The connecting pin of the rheostat W100
The resistance R302 is in series between 2 and the output end of the zener diode D100；The connecting pin 3 of the rheostat W100 connects
Enter the common end of the zener diode D100.
In one or more embodiment of the utility model, the model AD7545 of the ADC chip.
Compared with prior art, the utility model embodiment has the advantages that
In the embodiments of the present invention, the driving circuit applied to lamp pump laser include: ADC chip,
Follow feed circuit, power collecting circuit and one or more push-pull driver circuit；Wherein, the ADC chip is used to incite somebody to action
The digital controlled signal of lamp pump laser is converted into analog quantity voltage；The external reference voltage reference circuit of the ADC chip or
Person's pressure stabilizing IC.In the embodiments of the present invention, the digital signal for controlling laser waveform and power inputs the ADC chip,
Then the digital signal for controlling laser waveform and power is converted into analog quantity voltage by the ADC chip.The ADC chip is defeated
The size of analog quantity voltage out is determined by the digital signal of the laser waveform and power that input.The mould of the ADC chip output
Analog quantity voltage inputs the non-inverting input terminal of the operation amplifier circuit respectively, by the operation amplifier circuit be divided into all the way or
Person's multichannel inputs the non-inverting input terminal of one or more comparator circuit, therefore inputs each described comparator circuit
Analog quantity voltage it is equal.When lamp pump laser exports laser, the power collecting circuit acquires the laser power in optical path,
Convert light energy into the inverting input terminal that analog quantity voltage inputs one or more comparator circuit.One or more
Mould of the comparator circuit to the power collecting circuit analog quantity voltage inputted and operation amplifier circuit input
Analog quantity voltage is compared.If it is defeated that the analog quantity voltage of the operation amplifier circuit input is greater than the power collecting circuit
The analog quantity voltage entered, the comparator circuit export high level to the push-pull driver circuit, and the push-pull driver circuit is received
The operating current of the power supply of lamp pump laser is improved after to the high level, and then improves the laser of lamp pump laser output
Power.If the analog quantity voltage of the operation amplifier circuit input is less than the analog quantity electricity of power collecting circuit input
Pressure, the comparator circuit export low level to the push-pull driver circuit, and the push-pull driver circuit receives the low level
Reduce the operating current of the power supply of lamp pump laser afterwards, and then reduces the laser power of lamp pump laser output.In this reality
With the analog quantity voltage and the power collecting circuit output in novel embodiment, due to operation amplifier circuit output
Analog quantity voltage can input the comparator circuit in time, therefore in the utility model be applied to lamp pump laser
Driving circuit have good real-time, be conducive in time adjust lamp pump laser output laser power.Secondly, described
The analog quantity voltage that operation amplifier circuit inputs each comparator circuit is equal, so that the lamp of lamp pump laser pumps
The changed power of each xenon lamp at Pu is consistent, advantageously ensures that the efficiency of all xenon lamps is consistent, and then improves lamp pumping and swash
The controllability of light device.Furthermore the operation amplifier circuit can be improved the driving of the analog quantity voltage of the ADC chip output
Ability is conducive to the control ability for improving the driving circuit applied to lamp pump laser.In the implementation of the utility model
In example, the structure of the driving circuit applied to lamp pump laser is simple, and production cost is few, and laser power control is stablized,
And for ease of maintenaince.The driving circuit applied to lamp pump laser is suitable for mass production and applies, and can obtain very
Big economic benefit.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached
Figure is briefly described, it should be apparent that, the drawings in the following description are only some examples of the present application, for this field
For those of ordinary skill, without any creative labor, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is a kind of schematic diagram of the driving circuit applied to lamp pump laser in an embodiment of the utility model；
Fig. 2 is a kind of specific configuration of the driving circuit applied to lamp pump laser in an embodiment of the utility model
Figure.
Description of symbols:
Specific embodiment
The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model,
It states.The preferred embodiment of the utility model is given in attached drawing.But the utility model can come in many different forms in fact
It is existing, however it is not limited to embodiment described herein.Opposite, purpose of providing these embodiments is makes public affairs to the utility model
The understanding for opening content is more thorough and comprehensive.Unless otherwise defined, technical and scientific term used herein with belong to that this is practical
The normally understood meaning of novel those skilled in the art is identical.Herein in the used in the description of the utility model
Term be only for the purpose of describing specific embodiments and be not intended to limit the utility model.
One embodiment of the utility model discloses a kind of driving circuit applied to lamp pump laser.
With reference to Fig. 1, show for a kind of driving circuit applied to lamp pump laser in an embodiment of the utility model
It is intended to.
It anticipates as shown in fig. 1, in the embodiments of the present invention, the driving electricity applied to lamp pump laser
Road includes: ADC (Analog-to-digital converter) chip 100, follows feed circuit 200, power collecting circuit
300 and one or more push-pull driver circuit 400；Wherein, the ADC chip is used to control the number of lamp pump laser
Signal processed is converted into analog quantity voltage；The external reference voltage reference circuit 500 of the ADC chip or pressure stabilizing IC
(integrated circuit)。
It is described that feed circuit 200 is followed to include operation amplifier circuit and one or more comparator circuit；The ADC
The analog quantity voltage that chip 100 exports inputs the non-inverting input terminal of the operation amplifier circuit；The operation amplifier circuit
Output end access the non-inverting input terminal of one or more comparator circuit；The output of each comparator circuit
One push-pull driver circuit 400 of end connection.
The power collecting circuit 300 includes at least one photo resistance, and the photo resistance converts light energy into simulation
Measure the inverting input terminal of one or more comparator circuit of voltage input；One or more described push-pull driver circuit
The power circuit of 400 connection lamp pump lasers.
In the embodiments of the present invention, the digital signal for controlling laser waveform and power inputs the ADC chip
100, the digital signal for controlling laser waveform and power is then converted into analog quantity voltage by the ADC chip 100.It is described
The size for the analog quantity voltage that ADC chip 100 exports is determined by the digital signal of the laser waveform and power that input.The ADC
The analog quantity voltage that chip 100 exports inputs the non-inverting input terminal of the operation amplifier circuit respectively, by the operation amplifier
Device circuit is divided into all the way or multichannel inputs the non-inverting input terminal of one or more comparator circuit, therefore inputs each
The analog quantity voltage of a comparator circuit is equal.When lamp pump laser exports laser, the power collecting circuit 300 is adopted
Collect the laser power in optical path, converts light energy into the reverse phase that analog quantity voltage inputs one or more comparator circuit
Input terminal.Analog quantity voltage that one or more described comparator circuit inputs the power collecting circuit 300 and described
The analog quantity voltage of operation amplifier circuit input is compared.If the analog quantity voltage of the operation amplifier circuit input
Greater than the analog quantity voltage of the power collecting circuit 300 input, the comparator circuit exports high level and recommends drive to described
Dynamic circuit 400, the work that the push-pull driver circuit 400 receives the power supply for improving lamp pump laser after the high level are electric
Stream, and then improve the laser power of lamp pump laser output.If the analog quantity voltage of the operation amplifier circuit input
Less than the analog quantity voltage of the power collecting circuit 300 input, the comparator circuit exports low level and recommends drive to described
Dynamic circuit 400, the work that the push-pull driver circuit 400 receives the power supply for reducing lamp pump laser after the low level are electric
Stream, and then reduce the laser power of lamp pump laser output.In the embodiments of the present invention, due to the operation amplifier
The analog quantity voltage of device circuit output and the analog quantity voltage of the power collecting circuit 300 output can input described in time
Comparator circuit, therefore the driving circuit applied to lamp pump laser in the utility model has good real-time, has
Conducive to the laser power of timely adjustment lamp pump laser output.Secondly, the operation amplifier circuit inputs described in each
The analog quantity voltage of comparator circuit is equal, so that the changed power one of each xenon lamp of the lamp pumping of lamp pump laser
It causes, advantageously ensures that the efficiency of all xenon lamps is consistent, and then improve the controllability of lamp pump laser.Furthermore the operation
Amplifier circuit can be improved the driving capability for the analog quantity voltage that the ADC chip 100 exports, and be conducive to improve the application
In the control ability of the driving circuit of lamp pump laser.It is described to swash applied to lamp pumping in the embodiments of the present invention
The structure of the driving circuit of light device is simple, and production cost is few, and laser power control is stablized, and for ease of maintenaince.It is described to be applied to
The driving circuit of lamp pump laser is suitable for mass production and applies, and can obtain very big economic benefit.
In some embodiments of the utility model, the model AD7545 of the ADC chip 100.The comparator electricity
The model LM393 on road.
It is a kind of tool of the driving circuit applied to lamp pump laser in an embodiment of the utility model with reference to Fig. 2
Body structural map.
It anticipates as shown in Figure 2, ADC chip U100 uses AD7545, the VCC terminal access 5V driving of ADC chip U100
The VREF terminal of voltage, ADC chip U100 accesses reference voltage reference circuit.The construction of the reference voltage reference circuit is with reference to figure
Construction in 2.The Vout1 terminal of ADC chip U100 exports analog quantity voltage, the analog quantity voltage input operational amplifier circuit
No. 1 terminal namely input operational amplifier circuit non-inverting input terminal.The output end of the operation amplifier circuit is divided into two
Road is separately connected the non-inverting input terminal of a comparator circuit.It anticipates as shown in Figure 2, each described type compared with device circuit
Number be LM393.Power collecting circuit is generally arranged in the output light path of lamp pump laser, for acquiring lamp pump laser
The laser power of output, and convert light energy into the inverting input terminal that analog quantity voltage inputs each comparator circuit respectively.
The analog quantity voltage and the power collecting circuit of the comparator circuit operation amplifier circuit input input mould
Analog quantity voltage, and high level or low level are exported to push-pull driver circuit when meeting condition.It anticipates as shown in Figure 2, it is described
Power collecting circuit includes a photo resistance R601, and photo resistance R601 converts light energy into analog quantity voltage.The function
The operating voltage of rate Acquisition Circuit is 15V.
It anticipates as shown in Figure 2, two push-pull driver circuits are separately connected the output end of a comparator circuit.It is specific and
Speech, the output end of comparator circuit connect the base stage of the NPN type triode of the push-pull driver circuit.
Anticipate as shown in Figure 2, in the embodiments of the present invention, the non-inverting input terminal of the comparator circuit with it is defeated
Resistance R203 and capacitor C101 are parallel between outlet；The output end of the operation amplifier circuit and the comparator circuit
Resistance R201 is in series between non-inverting input terminal.
It anticipates as shown in Figure 2, in the embodiments of the present invention, the power collecting circuit 300 includes resistance
R600 and photo resistance R601；One end of the resistance R600 connects the photo resistance R601, and the resistance R600's is another
It terminates into power supply；The photo resistance R601 ground connection.
It anticipates as shown in Figure 2, in the embodiments of the present invention, the push-pull driver circuit 400 includes: positive-negative-positive
Triode T300, NPN type triode T301, resistance R400, resistance R401, resistance R402 and resistance R403；The resistance
One end of R400 connects the comparator circuit, and the other end of the resistance R400 connects the base of the NPN type triode T301
Pole；One end of the resistance R401 connects the collector of the NPN type triode T301, the other end connection of the resistance R401
The base stage of the PNP type triode T300；One end of the resistance R402 connects the emitter of the NPN type triode T301,
The other end of the resistance R402 connects the collector of the PNP type triode T300；One end of the resistance R403 connects institute
The base stage of NPN type triode T301 is stated, the other end of the resistance R403 connects the emitter of the NPN type triode T301；
The emitter of the NPN type triode T301 is grounded, between the resistance R402 and the collector of the PNP type triode T300
Access power supply.
It anticipates as shown in Figure 2, in the embodiments of the present invention, the reference of the ADC chip 100 external reference voltage
Circuit 500, the reference voltage reference circuit 500 include: resistance R300, resistance R301, resistance R302, rheostat W100 and
Zener diode D100；The input terminal of the zener diode D100 connects the VREF pin of the ADC chip 100；Power supply warp
The input terminal of the zener diode D100 is accessed by the resistance R301；The output end of the zener diode D100 is grounded；
The resistance R300 is connected between the connecting pin 1 of the rheostat W100 and the VREF pin of the ADC chip 100；It is described
The resistance R302 is in series between the connecting pin 2 of rheostat W100 and the output end of the zener diode D100；The change
The common end of the zener diode D100 is accessed in the connecting pin 3 of resistance device W100.
A kind of specific configuration of the driving circuit applied to lamp pump laser in the utility model can be referred to
Fig. 2 understands, but the specific configuration of the driving circuit applied to lamp pump laser in the utility model is not limited to Fig. 2
Shown in meaning.
Finally it should be noted that, it is clear that embodiments described above is only the utility model a part of the embodiment, and
The embodiment being not all of gives the preferred embodiment of the utility model in attached drawing, but is not intended to limit the special of the utility model
Sharp range.The utility model can realize in many different forms, on the contrary, purpose of providing these embodiments is makes pair
The understanding of the disclosure of the utility model is more thorough and comprehensive.Although having been carried out in detail to the utility model with reference to the foregoing embodiments
Thin explanation still can be to skill documented by aforementioned each specific embodiment for coming for those skilled in the art
Art scheme is modified, or carries out equivalence replacement to part of technical characteristic.It is all using the utility model specification and
The equivalent structure that accompanying drawing content is done directly or indirectly is used in other related technical areas, similarly in the utility model
Within scope of patent protection.
Claims (6)
1. a kind of driving circuit applied to lamp pump laser characterized by comprising ADC chip (100) follows feedback
Circuit (200), power collecting circuit (300) and one or more push-pull driver circuit (400)；Wherein, the ADC chip
For the digital controlled signal of lamp pump laser to be converted into analog quantity voltage；The external reference voltage reference of ADC chip
Circuit (500) or pressure stabilizing IC；
It is described that follow feed circuit (200) include operation amplifier circuit and one or more comparator circuit；The ADC core
The analog quantity voltage of piece (100) output inputs the non-inverting input terminal of the operation amplifier circuit；The operation amplifier circuit
Output end access the non-inverting input terminal of one or more comparator circuit；The output of each comparator circuit
One push-pull driver circuit (400) of end connection；
The power collecting circuit (300) includes at least one photo resistance, and the photo resistance converts light energy into analog quantity
The inverting input terminal of one or more comparator circuit of voltage input；One or more described push-pull driver circuit
(400) power circuit of lamp pump laser is connected.
2. the driving circuit according to claim 1 applied to lamp pump laser, which is characterized in that the comparator electricity
Resistance R203 and capacitor C101 are parallel between the non-inverting input terminal and output end on road；The output end of the operation amplifier circuit
Resistance R201 is in series between the non-inverting input terminal of the comparator circuit.
3. the driving circuit according to claim 1 applied to lamp pump laser, which is characterized in that the power collecting
Circuit (300) includes resistance R600 and photo resistance R601；One end of the resistance R600 connects the photo resistance R601, institute
State the other end access power supply of resistance R600；The photo resistance R601 ground connection.
4. according to claim 1 to the driving circuit for being applied to lamp pump laser described in 3 any one, which is characterized in that
The push-pull driver circuit (400) include: PNP type triode T300, NPN type triode T301, resistance R400, resistance R401,
Resistance R402 and resistance R403；One end of the resistance R400 connects the comparator circuit, and the resistance R400's is another
End connects the base stage of the NPN type triode T301；One end of the resistance R401 connects the collection of the NPN type triode T301
Electrode, the other end of the resistance R401 connect the base stage of the PNP type triode T300；One end of the resistance R402 connects
The emitter of the NPN type triode T301, the other end of the resistance R402 connect the current collection of the PNP type triode T300
Pole；One end of the resistance R403 connects the base stage of the NPN type triode T301, and the other end of the resistance R403 connects institute
State the emitter of NPN type triode T301；The emitter of the NPN type triode T301 is grounded, the resistance R402 with it is described
Power supply is accessed between the collector of PNP type triode T300.
5. the driving circuit according to claim 4 applied to lamp pump laser, which is characterized in that the ADC chip
(100) external reference voltage reference circuit (500), the reference voltage reference circuit (500) includes: resistance R300, resistance
R301, resistance R302, rheostat W100 and zener diode D100；Described in the input terminal connection of the zener diode D100
The VREF pin of ADC chip (100)；Power supply accesses the input terminal of the zener diode D100 via the resistance R301；Institute
State the output end ground connection of zener diode D100；The VREF of the connecting pin 1 of the rheostat W100 and the ADC chip (100)
The resistance R300 is connected between pin；The output of the connecting pin 2 of the rheostat W100 and the zener diode D100
The resistance R302 is in series between end；The public of the zener diode D100 is accessed in the connecting pin 3 of the rheostat W100
End.
6. the driving circuit according to claim 1 applied to lamp pump laser, which is characterized in that the ADC chip
(100) model AD7545.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821265266.9U CN208571221U (en) | 2018-08-07 | 2018-08-07 | A kind of driving circuit applied to lamp pump laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821265266.9U CN208571221U (en) | 2018-08-07 | 2018-08-07 | A kind of driving circuit applied to lamp pump laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208571221U true CN208571221U (en) | 2019-03-01 |
Family
ID=65449912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821265266.9U Active CN208571221U (en) | 2018-08-07 | 2018-08-07 | A kind of driving circuit applied to lamp pump laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208571221U (en) |
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2018
- 2018-08-07 CN CN201821265266.9U patent/CN208571221U/en active Active
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