CN219268124U - Novel laser light source driving device - Google Patents
Novel laser light source driving device Download PDFInfo
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- CN219268124U CN219268124U CN202320382128.3U CN202320382128U CN219268124U CN 219268124 U CN219268124 U CN 219268124U CN 202320382128 U CN202320382128 U CN 202320382128U CN 219268124 U CN219268124 U CN 219268124U
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Abstract
The utility model discloses a novel laser light source driving device, which comprises a signal input circuit, a constant current driving circuit, a brightness and power regulating circuit and an output circuit, wherein the signal input circuit and the brightness and power regulating circuit are respectively and electrically connected with the constant current driving circuit, the constant current driving circuit is connected with the output circuit, the signal input circuit is used for inputting an external PWM (pulse width modulation) signal, the constant current driving circuit is used for driving a laser light source, the brightness and power regulating circuit is used for regulating the brightness and the output power of the laser light source, and the output circuit is used for being connected with the laser light source; by setting the brightness and power adjusting circuit, the effect of adjusting the brightness and power of the laser light source can be realized, and the defect that the output power of the laser light source cannot be adjusted in the prior art is effectively overcome.
Description
Technical Field
The utility model relates to the technical field of laser light source driving, in particular to a novel laser light source driving device.
Background
In optical experiments, a laser power driving device is often required, and the existing laser light source driving device generally adopts a PWM mode to adjust the brightness of a laser light source, however, the output power of the laser light source cannot be adjusted.
Disclosure of Invention
In view of this, the present utility model provides a novel laser light source driving device, which can solve the defect that the output power of the laser light source cannot be adjusted in the existing laser light source driving device.
The technical scheme of the utility model is realized as follows:
the utility model provides a novel laser light source drive arrangement, includes signal input circuit, constant current drive circuit, luminance and power regulation circuit and output circuit, signal input circuit and luminance and power regulation circuit respectively with constant current drive circuit electric connection, constant current drive circuit with output circuit connects, signal input circuit is used for the input outside PWM signal, constant current drive circuit is used for driving the laser light source, luminance and power regulation circuit are used for carrying out luminance and output's regulation to the laser light source, output circuit is used for being connected with the laser light source.
As a further alternative of the novel laser light source driving device, the device further comprises a protection circuit, the protection circuit is used for preventing reverse connection of an input power supply, and the signal input circuit is electrically connected with the constant current driving circuit through the protection circuit.
As a further alternative of the novel laser light source driving device, the constant current driving circuit includes a 5241A chip and peripheral circuits thereof.
As a further alternative of the novel laser light source driving device, the brightness and power adjusting circuit comprises an adjustable potentiometer and a peripheral circuit thereof.
As a further alternative of the novel laser light source driving device, the protection circuit includes an SI4800BDY tube and its peripheral circuit.
The beneficial effects of the utility model are as follows: by setting the brightness and power adjusting circuit, the effect of adjusting the brightness and power of the laser light source can be realized, and the defect that the output power of the laser light source cannot be adjusted in the prior art is effectively overcome.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a novel laser source driving device according to the present utility model;
FIG. 2 is a schematic circuit diagram of a signal input circuit in a novel laser light source driving device according to the present utility model;
FIG. 3 is a schematic circuit diagram of a constant current driving circuit in a novel laser light source driving device according to the present utility model;
FIG. 4 is a schematic circuit diagram of a brightness and power adjusting circuit in a novel laser light source driving device according to the present utility model;
FIG. 5 is a schematic circuit diagram of an output circuit of a novel laser light source driving device according to the present utility model;
FIG. 6 is a schematic circuit diagram of a protection circuit in a novel laser light source driving device according to the present utility model;
fig. 7 is a schematic structural diagram of an output circuit in a novel laser light source driving device according to the present utility model.
Detailed Description
The following description of the technical solutions in the embodiments of the present utility model will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-7, a novel laser light source driving device comprises a signal input circuit, a constant current driving circuit, a brightness and power regulating circuit and an output circuit, wherein the signal input circuit and the brightness and power regulating circuit are respectively and electrically connected with the constant current driving circuit, the constant current driving circuit is connected with the output circuit, the signal input circuit is used for inputting an external PWM signal, the constant current driving circuit is used for driving a laser light source, the brightness and power regulating circuit is used for regulating the brightness and the output power of the laser light source, and the output circuit is used for being connected with the laser light source.
In the embodiment, the brightness and power adjusting circuit is arranged, so that the effect of adjusting the brightness and power of the laser light source can be achieved, and the defect that the output power of the laser light source cannot be adjusted in the prior art is effectively overcome.
It should be noted that, as shown in fig. 7, the use of the 3Pin socket in the output circuit can be compatible with any bare laser tube on the market, and the use of the 3Pin socket can realize the effect of quickly replacing the laser light source in experiments, thereby achieving the purposes of convenience in light color switching and low cost, and also realizing the effect of split setting of the driving device and the laser light source.
Preferably, the device further comprises a protection circuit, the protection circuit is used for preventing reverse connection of an input power supply, and the signal input circuit is electrically connected with the constant current driving circuit through the protection circuit.
In this embodiment, by setting the protection circuit, the reverse connection of the input power source can be effectively prevented, and the effect of the protection circuit is achieved.
Preferably, the constant current driving circuit includes a 5241A chip and peripheral circuits thereof.
In the embodiment, a 5241A chip with low cost and high power is adopted as a constant current driving chip, and an external PWM signal can be input to a DIM pin in the 5241A chip, so that the brightness of a laser light source is adjusted from 0 to 100 percent, wherein D3 is a voltage stabilizing tube for preventing the external input PWM from being burnt out excessively, and the flicker frequency of the laser light source can be controlled by changing the frequency of the external PWM; in addition, by adding two diodes D1 and D2 in the circuit to accelerate the discharge time of the inductor L1, the driving device can quickly respond in an external PWM control mode, and the linearity effect is better.
Preferably, the brightness and power adjusting circuit comprises an adjustable potentiometer and a peripheral circuit thereof.
In this embodiment, the adjustment of the current of the laser light source by the adjustable potentiometer can easily achieve the adaptation of the luminous tubes with different powers, and the brightness of the laser light source can be adjusted by the adjustable resistor, so that the adjustment of the brightness of the laser light source can be achieved without using external PWM control, and thus, great convenience is brought to the driver in use.
Preferably, the protection circuit comprises an SI4800BDY pipe and peripheral circuits thereof.
In this embodiment, the N-MOS si4800BDY tube is added to the circuit, and the principle that the MOS tube is turned on only by inputting a high voltage to the G pole of the N-MOS tube is utilized, and the on current of the MOS has directivity, so that the circuit current can normally flow only when the power supply is connected in the correct direction to form a loop.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (5)
1. The utility model provides a novel laser light source drive arrangement, its characterized in that includes signal input circuit, constant current drive circuit, luminance and power regulating circuit and output circuit, signal input circuit and luminance and power regulating circuit respectively with constant current drive circuit electric connection, constant current drive circuit with output circuit connects, signal input circuit is used for the input outside PWM signal, constant current drive circuit is used for driving laser light source, luminance and power regulating circuit are used for carrying out luminance and output's regulation to laser light source, output circuit is used for being connected with laser light source.
2. The novel laser light source driving device according to claim 1, further comprising a protection circuit, wherein the protection circuit is used for preventing reverse connection of an input power supply, and the signal input circuit is electrically connected with the constant current driving circuit through the protection circuit.
3. The novel laser light source driving device according to claim 2, wherein the constant current driving circuit comprises a 5241A chip and peripheral circuits thereof.
4. A novel laser light source driving device according to claim 3, wherein the brightness and power adjusting circuit comprises an adjustable potentiometer and a peripheral circuit thereof.
5. The novel laser light source driving device according to claim 4, wherein the protection circuit comprises an SI4800BDY tube and a peripheral circuit thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320382128.3U CN219268124U (en) | 2023-03-03 | 2023-03-03 | Novel laser light source driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320382128.3U CN219268124U (en) | 2023-03-03 | 2023-03-03 | Novel laser light source driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219268124U true CN219268124U (en) | 2023-06-27 |
Family
ID=86862443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320382128.3U Active CN219268124U (en) | 2023-03-03 | 2023-03-03 | Novel laser light source driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219268124U (en) |
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2023
- 2023-03-03 CN CN202320382128.3U patent/CN219268124U/en active Active
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