CN206379618U - Laser range finder laser power conditioned circuit - Google Patents
Laser range finder laser power conditioned circuit Download PDFInfo
- Publication number
- CN206379618U CN206379618U CN201720066188.9U CN201720066188U CN206379618U CN 206379618 U CN206379618 U CN 206379618U CN 201720066188 U CN201720066188 U CN 201720066188U CN 206379618 U CN206379618 U CN 206379618U
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- electrically connected
- laser
- triode
- resistance
- module
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Abstract
The utility model discloses a kind of laser range finder laser power conditioned circuit, occurs module including analog voltage signal, laser tube drive circuit module, laser tube and luminous intensity negative-feedback device, the input that the output end and the laser drive circuit module of module occur for the analog voltage signal is electrically connected, the output end and the input of the laser tube of the laser tube drive circuit module are electrically connected, the laser tube is provided with laser output and light intensity signal output end, the light intensity signal output end connects with the input of the luminous intensity negative-feedback device, the output end of the luminous intensity negative-feedback device and the input of the laser tube drive circuit module are electrically connected.The laser range finder laser power conditioned circuit analog voltage signal occur module produce analog voltage together with the negative feedback current of luminous intensity negative-feedback device superposition in laser tube drive circuit module, predetermined power can arbitrarily be adjusted, use more flexible convenience.
Description
Technical field
The utility model is related to electronic circuit field, more particularly to a kind of type laser range finder laser power conditioned circuit.
Background technology
After traditional laser tube drive circuit component parameters are fixed, the power of driving can also be fixed up, it is impossible to change, such as
Fruit to change be accomplished by more can electronic component, very bother.
The content of the invention
The purpose of this utility model be to provide it is a kind of can flexible modulation laser power and without changing swashing for electronic component
Optar laser power conditioned circuit, makes the more flexible convenience of regulation of laser power.
To achieve these goals, the technical solution of the utility model is：There is provided a kind of laser range finder laser power can
Circuit, including analog voltage signal is adjusted to occur module, laser tube drive circuit module, laser tube and luminous intensity negative-feedback device,
The input that the output end and the laser drive circuit module of module occur for the analog voltage signal is electrically connected, described to swash
The output end of light pipe drive circuit module and the input of the laser tube are electrically connected, and the laser tube is provided with laser output
And light intensity signal output end, the light intensity signal output end connects with the input of the luminous intensity negative-feedback device, institute
The output end and the input of the laser tube drive circuit module for stating luminous intensity negative-feedback device are electrically connected.
Module, which occurs, for the analog voltage signal includes PWM module and low-pass filter circuit module, the PWM module
The input of output end and the low-pass filter circuit module is electrically connected, the output end of the low-pass filter circuit module and institute
The input for stating laser tube drive circuit module is electrically connected.
It is DAC (digital analog converter) and the second filter circuit, the digital-to-analogue conversion that module, which occurs, for the analog voltage signal
The output end of device and the input of second filter circuit are electrically connected, and the output end of second filter circuit swashs with described
The input of light pipe drive circuit module is electrically connected.
The laser tube drive circuit module includes the first triode, the second triode and first resistor, described first
The base stage of triode and the colelctor electrode of second triode are electrically connected, the emitter stage of first triode and described first
One end of resistance is electrically connected, the other end ground connection of the first resistor, colelctor electrode and the laser of first triode
The negative pole of pipe is electrically connected, and is connected with second resistance between the base stage of the positive pole of the laser tube and first triode, institute
State the electrical phase of the positive pole of base stage and the laser tube of the positive and negative polarities of luminous intensity negative-feedback device respectively with second triode
Connect, positive pole and the external power supply of the laser tube are electrically connected, the low-pass filter circuit include 3rd resistor, the 4th resistance,
5th resistance, the first electric capacity and the second electric capacity, one end of the 3rd resistor connect with the output end of PWM module, and the described 3rd
The other end of resistance is electrically connected with one end of the 4th resistance and one end of the first electric capacity respectively, the 4th resistance
The other end is electrically connected with one end of the 5th resistance and one end of the second electric capacity, another termination of first electric capacity
Emitter stage electrical phase of the other end of ground, the other end of second electric capacity and the 5th resistance with second triode
Connect, the grounded emitter of second triode.
The laser tube drive circuit module includes the first triode, the second triode and first resistor, described first
The base stage of triode and the colelctor electrode of second triode are electrically connected, the emitter stage of first triode and described first
One end of resistance is electrically connected, the other end ground connection of the first resistor, colelctor electrode and the laser of first triode
The negative pole of pipe is electrically connected, and is connected with second resistance between the base stage of the positive pole of the laser tube and first triode, institute
State the electrical phase of the positive pole of base stage and the laser tube of the positive and negative polarities of luminous intensity negative-feedback device respectively with second triode
Connect, positive pole and the external power supply of the laser tube are electrically connected, second filter circuit include the 6th resistance, the 7th resistance with
And the 3rd electric capacity, one end of the 6th resistance connects with the output end of the digital analog converter, one end of the 7th resistance,
The other end of one end of 3rd electric capacity and the base stage of second triode with the 6th resistance is electrically connected, electricity
Property connect, the other end of the 7th resistance, the other end of the 3rd electric capacity with the emitter stage of second triode electricity
Property connects, the grounded emitter of second triode.
Compared with prior art, mould occurs for the utility model laser range finder laser power conditioned circuit analog voltage signal
Block produce analog voltage together with the negative feedback current of luminous intensity negative-feedback device superposition in laser tube drive circuit module,
Predetermined power can arbitrarily be adjusted, use more flexible convenience.
By following description and with reference to accompanying drawing, the utility model will become more fully apparent, and these accompanying drawings are used to explain this
The embodiment of utility model.
Brief description of the drawings
Fig. 1 is the theory diagram of the utility model laser range finder laser power conditioned circuit first embodiment.
Fig. 2 is the circuit diagram of the utility model laser range finder laser power conditioned circuit first embodiment.
Fig. 3 is the theory diagram of the utility model laser range finder laser power conditioned circuit second embodiment
Fig. 4 is the circuit diagram of the utility model laser range finder laser power conditioned circuit second embodiment.
Embodiment
With reference to Fig. 1 and Fig. 2, the utility model laser range finder laser power conditioned circuit includes analog voltage signal
Module, laser tube drive circuit module 20, laser tube 30 and luminous intensity negative-feedback device 40.
The input that the output end and the laser drive circuit module 20 of module occur for the analog voltage signal is electrical
Connect, the output end of the laser tube drive circuit module 20 and the input of the laser tube 30 are electrically connected.The laser
Pipe 30 is provided with laser output 31 and light intensity signal output end 32, the light intensity signal output end 32 and the luminous intensity
The input of negative-feedback device 40 connects, the output end of the luminous intensity negative-feedback device 40 and the laser tube drive circuit module 20
Input be electrically connected.In the present embodiment, module, which occurs, for the analog voltage signal includes PWM module 11 and LPF
Circuit module 12, the input of the output end of the PWM module 11 and the low-pass filter circuit module 12 is electrically connected, described
The output end of low-pass filter circuit module 12 and the input of the laser tube drive circuit module 20 are electrically connected.PWM is arteries and veins
Rush width modulated.
Specifically, the laser tube drive circuit module 20 includes the first triode 21, the second triode 22 and first
Resistance 23.The base stage of first triode 21 and the colelctor electrode of second triode 22 are electrically connected, the one or three pole
The emitter stage of pipe 21 and one end of the first resistor 23 are electrically connected, the other end ground connection of the first resistor 23.Described
The negative pole of the colelctor electrode of one triode 21 and the laser tube 30 is electrically connected, the positive pole of the laser tube 30 and the described 1st
It is connected with second resistance 24 between the base stage of pole pipe 21, the positive and negative polarities of the luminous intensity negative-feedback device 40 are respectively with described second
The positive pole of the base stage of triode 22 and the laser tube 30 is electrically connected, positive pole and the electrical phase of external power supply of the laser tube 30
Connect.The low-pass filter circuit 12 includes 3rd resistor 121, the 4th resistance 122, the 5th resistance 123, the first electric capacity 124 and the
Two electric capacity 125.One end of the 3rd resistor 21 connects with the output end of PWM module 11, the other end of the 3rd resistor 121
Be electrically connected respectively with one end of the 4th resistance 122 and one end of the first electric capacity 124, the 4th resistance 122 it is another
One end is electrically connected with one end of the 5th resistance 123 and one end of the second electric capacity 125, first electric capacity 124 it is another
One end is grounded.The other end of the other end of second electric capacity 125 and the 5th resistance 123 with second triode 22
Emitter stage be electrically connected, the grounded emitter of second triode 22.
With reference to Fig. 3 and Fig. 4, and unlike first embodiment, it is that DAC is digital-to-analogue that module, which occurs, for the analog voltage signal
The filter circuit 61 of converter 51 and second.The output end of the digital analog converter 51 and the input of second filter circuit 61
It is electrically connected, the output end of second filter circuit and the input of the laser tube drive circuit module 20 are electrically connected.
Second filter circuit 61 includes the 6th resistance 611, the 7th resistance 612 and the 3rd electric capacity 613.6th resistance 611
One end connect with the output end of the digital analog converter 51, one end of the 7th resistance 612, the 3rd electric capacity 613
The other end of the base stage of one end and second triode 22 with the 6th resistance 611 is electrically connected.7th electricity
Emitter stage of the other end, the other end of the 3rd electric capacity 613 of resistance 612 with second triode 22 is electrically connected, institute
State the grounded emitter of the second triode 22.
The simulation electricity that module is produced occurs for the utility model laser range finder laser power conditioned circuit analog voltage signal
Superposition, can be to predetermined power in laser tube drive circuit module together with the negative feedback current of luminous intensity negative-feedback device for pressure
Arbitrarily adjusted.When needed, it need to only change the height of analog voltage or change PWM dutycycle, use
More flexible convenience.
The utility model is described above in association with most preferred embodiment, but the utility model be not limited to it is disclosed above
Embodiment, and should cover it is various according to the present embodiment essence carry out modification, equivalent combinations.
Claims (5)
1. a kind of laser range finder laser power conditioned circuit, it is characterised in that：Occurs module, laser including analog voltage signal
Output end and the institute of module occur for tube drive circuit module, laser tube and luminous intensity negative-feedback device, the analog voltage signal
The input for stating laser drive circuit module is electrically connected, output end and the laser tube of the laser tube drive circuit module
Input be electrically connected, the laser tube be provided with laser output and light intensity signal output end, the light intensity signal
Output end connects with the input of the luminous intensity negative-feedback device, output end and the laser tube of the luminous intensity negative-feedback device
The input of drive circuit module is electrically connected.
2. laser range finder laser power conditioned circuit as claimed in claim 1, it is characterised in that：The analog voltage signal
Generation module includes PWM module and low-pass filter circuit module, the output end of the PWM module and the low-pass filter circuit
The input of module is electrically connected, and the output end of the low-pass filter circuit module is defeated with the laser tube drive circuit module
Enter end to be electrically connected.
3. laser range finder laser power conditioned circuit as claimed in claim 1, it is characterised in that：The analog voltage signal
Generation module is digital analog converter and the second filter circuit, the output end of the digital analog converter and second filter circuit
Input is electrically connected, the output end of second filter circuit and the electrical phase of input of the laser tube drive circuit module
Connect.
4. laser range finder laser power conditioned circuit as claimed in claim 2, it is characterised in that：The laser tube driving electricity
Road module includes the first triode, the second triode and first resistor, the base stage of first triode and the described 2nd 3
The colelctor electrode of pole pipe is electrically connected, and the emitter stage of first triode and one end of the first resistor are electrically connected, described
The other end ground connection of first resistor, the negative pole of the colelctor electrode and the laser tube of first triode is electrically connected, described to swash
Second resistance, positive and negative the two of the luminous intensity negative-feedback device are connected between the base stage of the positive pole of light pipe and first triode
Pole is electrically connected with the base stage of second triode and the positive pole of the laser tube respectively, the positive pole of the laser tube with it is external
Power supply is electrically connected, and the low-pass filter circuit includes 3rd resistor, the 4th resistance, the 5th resistance, the first electric capacity and the second electricity
Hold, one end of the 3rd resistor connects with the output end of PWM module, the other end of the 3rd resistor is respectively with the described 4th
One end of resistance and one end of the first electric capacity are electrically connected, the other end of the 4th resistance and one end of the 5th resistance
And second one end of electric capacity be electrically connected, the other end ground connection of first electric capacity, the other end of second electric capacity and institute
State emitter stage of the other end of the 5th resistance with second triode to be electrically connected, the emitter stage of second triode connects
Ground.
5. laser range finder laser power conditioned circuit as claimed in claim 3, it is characterised in that：The laser tube driving electricity
Road module includes the first triode, the second triode and first resistor, the base stage of first triode and the described 2nd 3
The colelctor electrode of pole pipe is electrically connected, and the emitter stage of first triode and one end of the first resistor are electrically connected, described
The other end ground connection of first resistor, the negative pole of the colelctor electrode and the laser tube of first triode is electrically connected, described to swash
Second resistance, positive and negative the two of the luminous intensity negative-feedback device are connected between the base stage of the positive pole of light pipe and first triode
Pole is electrically connected with the base stage of second triode and the positive pole of the laser tube respectively, the positive pole of the laser tube with it is external
Power supply is electrically connected, and the second filter circuit is connected between the base stage of the digital analog converter and second triode, described
Second filter circuit includes the 6th resistance, the 7th resistance and the 3rd electric capacity, and one end and the digital-to-analogue of the 6th resistance turn
The output end of parallel operation connects, the base of one end of the 7th resistance, one end of the 3rd electric capacity and second triode
The other end extremely with the 6th resistance is electrically connected, and is electrically connected, the other end, the 3rd electric capacity of the 7th resistance
Emitter stage of the other end with second triode be electrically connected, the grounded emitter of second triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720066188.9U CN206379618U (en) | 2017-01-19 | 2017-01-19 | Laser range finder laser power conditioned circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720066188.9U CN206379618U (en) | 2017-01-19 | 2017-01-19 | Laser range finder laser power conditioned circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206379618U true CN206379618U (en) | 2017-08-04 |
Family
ID=59400634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720066188.9U Expired - Fee Related CN206379618U (en) | 2017-01-19 | 2017-01-19 | Laser range finder laser power conditioned circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206379618U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109799492A (en) * | 2019-02-27 | 2019-05-24 | 珠海格力电器股份有限公司 | A kind of method and device for the output power adjusting microwave radar equipment |
| CN112859966A (en) * | 2019-11-27 | 2021-05-28 | 华中科技大学 | Integrated closed-loop feedback PWM control system and method for optical device parameter locking |
-
2017
- 2017-01-19 CN CN201720066188.9U patent/CN206379618U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109799492A (en) * | 2019-02-27 | 2019-05-24 | 珠海格力电器股份有限公司 | A kind of method and device for the output power adjusting microwave radar equipment |
| CN112859966A (en) * | 2019-11-27 | 2021-05-28 | 华中科技大学 | Integrated closed-loop feedback PWM control system and method for optical device parameter locking |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170804 Termination date: 20190119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |