CN208806469U - A kind of driving circuit of the laser range finder with feedback function - Google Patents
A kind of driving circuit of the laser range finder with feedback function Download PDFInfo
- Publication number
- CN208806469U CN208806469U CN201821616161.3U CN201821616161U CN208806469U CN 208806469 U CN208806469 U CN 208806469U CN 201821616161 U CN201821616161 U CN 201821616161U CN 208806469 U CN208806469 U CN 208806469U
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- module
- signal
- laser
- electric current
- feedback
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Abstract
The utility model discloses a kind of driving circuits of laser range finder with feedback function, including the signal processing module being connect with signal source, the signal processing module is connected with signal comparison module, the signal comparison module is connected with amplifying circuit, the amplifying circuit is connected with electric current drive module, the electric current drive module is connected with power filtering module and current sampling module, the current sampling module is connected with feedback module, the feedback module is connect with the signal comparison module, the power filtering module is connected with laser, the laser is connected with protection circuit.The circuit structure of the utility model is simple, the electric current of driving laser can feed back to signal comparison module by sampling module and feedback module, it is compared with the electric current of needs, to understand in time the luminous electric current of driving laser whether with need electric current equal, convenient for being adjusted in time to current value.
Description
Technical field
The utility model relates to technical fields, it particularly relates to a kind of drive of the laser range finder with feedback function
Dynamic circuit.
Background technique
Laser is mainly used for sending out laser, and for ranging, the driving circuit of laser is driving laser
Luminous, existing laser driving circuit does not have feedback module, is not easy to understand the size of driving current, and circuit knot in time
Structure is complicated.
Utility model content
For above-mentioned technical problem in the related technology, the utility model proposes a kind of laser rangings with feedback function
The driving circuit of instrument can overcome the above-mentioned deficiency of the prior art.
To realize the above-mentioned technical purpose, the technical solution of the utility model is achieved in that
A kind of driving circuit of the laser range finder with feedback function, including the signal processing mould being connect with signal source
Block, the signal processing module are connected with signal comparison module, and the signal comparison module is connected with amplifying circuit, described
Amplifying circuit be connected with electric current drive module, the electric current drive module is connected with power filtering module and current sampling mould
Block, the current sampling module are connected with feedback module, and the feedback module is connect with the signal comparison module, described
Power filtering module be connected with laser, the laser is connected with protection circuit.
Further, the signal processing module connect the input voltage letter for receiving signal source offer with signal source
Number.
Further, the power filtering module is used to connect in power supply, receives supply voltage and exports to laser
Driving current signal.
The utility model has the beneficial effects that the circuit structure of the utility model is simple, drive the electric current of laser that can lead to
Over sampling module and feedback module feed back to signal comparison module, and the electric current needed is compared, to understand driving in time
The luminous electric current of laser whether with need electric current equal, convenient for being adjusted in time to current value.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 is a kind of driving electricity of the laser range finder with feedback function according to the utility model embodiment
Road.
In figure: 101, signal processing module；102, signal comparison module；103, amplifying circuit；104, electric current drive module；
105, power filtering module；106, current sampling module；107, feedback module；108, laser；109, circuit is protected.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art's every other embodiment obtained, all belongs to
In the range of the utility model protection.
As shown in Figure 1, a kind of drive of the laser range finder with feedback function according to the utility model embodiment
Dynamic circuit, including the signal processing module 101 connecting with signal source, the signal processing module 101 is connected with signal and compares
Module 102, the signal comparison module 102 are connected with amplifying circuit 103, and the amplifying circuit 103 is connected with electric current drive
Dynamic model block 104, the electric current drive module 104 is connected with power filtering module 105 and current sampling module 106, described
Current sampling module 106 is connected with feedback module 107, and the feedback module 107 is connect with the signal comparison module 102,
The power filtering module 105 is connected with laser 108, and the laser 108 is connected with protection circuit 109.
In one embodiment, the signal processing module 101 is connect with signal source provides for receiving signal source
Input voltage signal.
In one embodiment, the power filtering module 105 is for connecting to power supply, receive supply voltage and to
Laser output driving current signal.
In order to facilitate the above-mentioned technical proposal for understanding the utility model, below by way of practical new to this in specifically used mode
The above-mentioned technical proposal of type is described in detail.
According to a kind of driving circuit of the laser range finder with feedback function described in the utility model, including at signal
Module 101 is managed, for being connect with signal source, the input voltage signal that signal source provides is received, input voltage signal is put
It is big to stablize processing generation amplification input signal；Signal comparison module 102 is connect, for receiving with the signal processing module 101
The amplification input signal, preset reference signal and feedback signal, and using the amplification input signal, preset reference signal and
Feedback signal generates control voltage signal；The amplifying circuit 103 is connect with the signal comparison module 102, for described
Control voltage signal amplifies processing, generates amplification control signal；The power filtering module 105 connects to power supply, and is used for
Supply voltage is received, and is connect with laser, to laser output driving current signal；The electric current drive module 104, with
The amplifying circuit 103 and the power filtering module 105 connect, for converting the driving for amplification control signal
Current signal；The current sampling module 106 is connect with the electric current drive module 104, for driving to flowing through the electric current
Electric current after module 104 and laser 108 is sampled, and obtains sampling voltage；The feedback module 107 takes with the electric current
Egf block 106 and the signal comparison module 102 connection generate feedback for being filtered enhanced processing to the sampling voltage
Signal, and the feedback signal is exported to the signal comparison module 102, the protection circuit 109 is for keeping output to swash
The constant amplitude of light pulse.
In conclusion the circuit structure of the utility model is simple, drive laser electric current can by sampling module and
Feedback module feeds back to signal comparison module, and the electric current needed is compared, to understand what driving laser shone in time
Electric current whether with need electric current equal, convenient for being adjusted in time to current value.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (3)
1. a kind of driving circuit of the laser range finder with feedback function, which is characterized in that including the letter being connect with signal source
Number processing module (101), the signal processing module (101) are connected with signal comparison module (102), and the signal compares
Module (102) is connected with amplifying circuit (103), and the amplifying circuit (103) is connected with electric current drive module (104), described
Electric current drive module (104) be connected with power filtering module (105) and current sampling module (106), the current sampling
Module (106) is connected with feedback module (107), and the feedback module (107) is connect with the signal comparison module (102),
The power filtering module (105) is connected with laser (108), and the laser (108) is connected with protection circuit
(109).
2. a kind of driving circuit of laser range finder with feedback function according to claim 1, which is characterized in that institute
The signal processing module (101) stated connect the input voltage signal for receiving signal source offer with signal source.
3. a kind of driving circuit of laser range finder with feedback function according to claim 2, which is characterized in that institute
The power filtering module (105) stated receives supply voltage and to laser output driving current signal for connecting to power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821616161.3U CN208806469U (en) | 2018-09-30 | 2018-09-30 | A kind of driving circuit of the laser range finder with feedback function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821616161.3U CN208806469U (en) | 2018-09-30 | 2018-09-30 | A kind of driving circuit of the laser range finder with feedback function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208806469U true CN208806469U (en) | 2019-04-30 |
Family
ID=66237656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821616161.3U Expired - Fee Related CN208806469U (en) | 2018-09-30 | 2018-09-30 | A kind of driving circuit of the laser range finder with feedback function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208806469U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112332213A (en) * | 2021-01-04 | 2021-02-05 | 南京芯视界微电子科技有限公司 | Laser driving circuit with human eye protection function and method thereof |
-
2018
- 2018-09-30 CN CN201821616161.3U patent/CN208806469U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112332213A (en) * | 2021-01-04 | 2021-02-05 | 南京芯视界微电子科技有限公司 | Laser driving circuit with human eye protection function and method thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190430 Termination date: 20210930 |