CN213783657U - Light source system - Google Patents
Light source system Download PDFInfo
- Publication number
- CN213783657U CN213783657U CN202022873292.3U CN202022873292U CN213783657U CN 213783657 U CN213783657 U CN 213783657U CN 202022873292 U CN202022873292 U CN 202022873292U CN 213783657 U CN213783657 U CN 213783657U
- Authority
- CN
- China
- Prior art keywords
- light source
- circuit board
- circuit
- pwm control
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model discloses a light source system, which comprises a light source controller, wherein the light source controller comprises a first circuit board, a second circuit board and a third circuit board which are sequentially stacked; the first circuit board is provided with a DC-DC power supply circuit, the second circuit board is provided with at least one PWM control circuit, and the third circuit board is provided with at least one power supply output interface; the PWM control circuit is used for modulating the direct-current voltage into pulse voltage with preset frequency and preset pulse width and outputting the pulse voltage to the power output interface. The utility model provides a pair of light source system, its light source controller are three layer construction, replace traditional individual layer structure to the direct current is got to the direct access, and the function that extinction source controller AC changes the direct current, thereby dwindles the volume of light source controller, so that light source controller can the direct mount near the light source, reduces light source system installation cost, reduces electromagnetic interference to PWM control circuit's influence, improves the control accuracy of light source controller.
Description
Technical Field
The utility model belongs to the technical field of the light source, especially, relate to a light source system.
Background
In the SMT (Surface Mounted Technology), a camera is indispensable for identification, positioning, and the like, and the presence of the camera inevitably has a light source matched with the camera. In the SMT board, the assembly of light source controller has always been a problem, and traditional light source controller contains complete switching power supply and control circuit, and the volume is too big, and the cabinet installation volume that accounts for under the condition of many light sources demand is too big. Therefore, the traditional light source controller cannot be installed together with the light source, and a large space is needed for installing and fixing the light source controller, so that the installation cost is increased, the connecting cable between the light source controller and the light source is longer, the longer connecting cable is more subjected to electromagnetic interference, and the control precision of the light source controller for controlling the light source is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a light source system to solve above-mentioned technical problem.
To achieve the purpose, the utility model adopts the following technical proposal:
a light source system comprises a light source controller, wherein the light source controller comprises a first circuit board, a second circuit board and a third circuit board which are sequentially stacked;
the first circuit board is provided with a DC-DC power supply circuit used for connecting a direct-current power supply, the second circuit board is provided with at least one PWM control circuit, and the third circuit board is provided with at least one power supply output interface;
the DC-DC power supply circuit is used for converting the output voltage of the DC power supply and outputting at least one path of preset DC voltage;
and the PWM control circuit is used for modulating the direct-current voltage into pulse voltage with preset frequency and preset pulse width and outputting the pulse voltage to the power output interface.
Optionally, the method further comprises:
the light source controller is fixedly arranged on the side wall of the fixing seat, and the light source is electrically connected with the power output interface.
Optionally, the fixing base is of a square structure, a first group of light sources is arranged on the top surface of the fixing base, a second group of light sources is arranged on the bottom surface of the fixing base, and a third group of light sources and a fourth group of light sources are arranged on one side surface of the fixing base.
Optionally, the DC-DC power circuit outputs two preset DC voltages;
eight paths of PWM control circuits are arranged on the second circuit board;
eight power output interfaces are arranged on the third circuit board;
the first group of light sources, the second group of light sources, the third group of light sources and the fourth group of light sources comprise a red light and a blue light;
one path of preset direct current voltage is respectively supplied to four paths of PWM control circuits, the four paths of PWM control circuits respectively modulate and output four paths of pulse voltage, and the four paths of pulse voltage are respectively supplied to four red lamps;
and the other preset direct current voltage is respectively supplied to the other four PWM control circuits, the other four PWM control circuits respectively modulate and output other four pulse voltages, and the other four pulse voltages are respectively supplied to the four blue lamps.
Optionally, the PWM control circuit includes a switching tube circuit, and the master controller sends a PWM signal for controlling the switching tube circuit to be turned on or off.
Optionally, a 485 communication module is further arranged on the second circuit board, and the 485 communication module is in communication connection with the master controller.
Optionally, a linear power supply circuit is further arranged on the second circuit board, and the linear power supply circuit is electrically connected to the dc power supply and is configured to convert an output voltage of the dc power supply and output a control voltage for supplying power to the master controller, the PWM control circuit, and the 485 communication module.
Optionally, the switching tube circuit includes a switch whose on/off is controlled by the PWM signal, and the switch is a triode, an MOS tube, or an IGBT tube.
Compared with the prior art, the embodiment of the utility model provides a following beneficial effect has:
the embodiment of the utility model provides a pair of light source system, its light source controller are three layer construction, replace traditional individual layer structure to direct access direct current gets the function that light source controller AC changes direct current, thereby dwindles light source controller's volume, so that light source controller can the direct mount near the light source, reduces light source system installation cost, reduces electromagnetic interference to PWM control circuit's influence, improves light source controller's control accuracy.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the range which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a structural diagram of a light source controller according to an embodiment of the present invention;
fig. 2 is a structural diagram of a light source according to an embodiment of the present invention;
fig. 3 is a system block diagram of a light source controller according to an embodiment of the present invention.
Illustration of the drawings:
10. a first circuit board; 11. a DC-DC power supply circuit; 20. a second circuit board; 21. a PWM control circuit; 22. a master controller; 23. 485 communication module; 30. a third circuit board; 31. a power output interface; 40. a fixed seat; 41. a first set of light sources; 42. a second light source; 43. a third group of light sources; 44. and a fourth group of light sources.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention are clearly and completely described with reference to the drawings in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1 to 3, the present embodiment provides a light source system including a light source and a light source controller for controlling the brightness of the light source.
Specifically, the conventional light source controller includes an AC-DC power supply circuit and has a single-layer circuit board structure. When the multichannel light source is controlled, the traditional light source controller is very large in size, not beneficial to installation and incapable of being installed nearby the light source, and due to the fact that large space is needed for installation, the connecting cable between the light source and the light source controller is too long, the electromagnetic interference is increased, and the control accuracy of the light source controller is further influenced.
Therefore, the light source controller provided in this embodiment adopts a separation stacked structure to reduce the volume of the light source controller, and specifically includes a first circuit board 10, a second circuit board 20, and a third circuit board 30 that are stacked in sequence.
In order to further reduce the size of the light source controller, the AC-DC power supply circuit of the light source controller is eliminated, and instead, a DC-DC power supply circuit 11 for connecting a direct current power supply is provided on the first circuit board 10. The output voltage of the DC power supply is converted by the DC-DC power supply circuit 11 to output at least one preset DC voltage. Optionally, in this embodiment, two preset dc voltages are output. Optionally, the dc power supply is a switching power supply.
In order to reasonably arrange the space structure of the light source controller, at least one path of PWM control circuit 21 is disposed on the second circuit board 20. The preset dc voltage is converted by the PWM control circuit 21, and then a pulse voltage with a preset frequency and a preset pulse width is output, so that the pulse voltage controls the brightness of the light source. Optionally, the present embodiment includes eight paths of PWM control circuits 21. Alternatively, the preset frequency and the preset pulse width may be adjusted by the PWM control circuit 21.
Specifically, the third circuit board 30 is provided with at least one power output interface 31 for outputting a pulse voltage to the light source. Optionally, the present embodiment includes eight power output interfaces 31, which correspond to the pulse voltages output by the eight PWM control circuits 21 one to one.
Therefore, in the light source system provided by this embodiment, the light source controller has a three-layer structure, which replaces the conventional single-layer structure, and directly accesses the direct current to perform the function of converting the alternating current to the direct current of the light source controller, so as to reduce the size of the light source controller, so that the light source controller can be directly installed near the light source, reduce the installation cost of the light source system, reduce the influence of the electromagnetic interference on the PWM control circuit 21, and improve the control accuracy of the light source controller.
In another embodiment of the present application, the light source system further includes:
the light source is arranged on the fixed seat 40, the light source controller is fixedly arranged on the side wall of the fixed seat 40, and the light source is electrically connected with the power output interface 31. This arrangement enables the light source controller to be as close as possible to the light source, shortening the length of the connecting cable therebetween, and reducing the influence of electromagnetic interference on the PWM control circuit 21.
In another embodiment of the present application, the fixing base 40 is a square structure, the top surface of the fixing base 40 is provided with a first group of light sources 41, the bottom surface of the fixing base 40 is provided with a second group of light sources 42, and one side surface of the fixing base 40 is provided with a third group of light sources 43 for assisting the first group of light sources 41 and a fourth group of light sources 44 for assisting the second group of light sources 42.
As a specific application scenario of the embodiment, the first group of light sources 41 is used to emit light from bottom to top to identify and locate a first target object, and the second group of light sources 42 is used to emit light from top to bottom to identify and locate a second target object. Optionally, a second set of lateral light sources 42 is used to assist the operation of the first set of light sources 41 and a fourth set of lateral light sources 44 is used to assist the operation of the second set of light sources 42.
In another embodiment of the present application, the DC-DC power circuit 11 outputs two preset DC voltages, the second circuit board 20 is provided with eight PWM control circuits 21, and the third circuit board 30 is provided with eight power output interfaces 31.
The first set of light sources 41, the second set of light sources 42, the third set of light sources 43 and the fourth set of light sources 44 each comprise a red light and a blue light. Each group of light sources comprises red and blue lamps, so that the identification and positioning accuracy can be improved.
Specifically, one preset direct current voltage is respectively supplied to the four PWM control circuits 21, the four PWM control circuits 21 respectively modulate and output four pulse voltages, and the four pulse voltages are respectively supplied to the four red lamps;
the other preset direct current voltage is respectively supplied to the other four paths of PWM control circuits 21, the other four paths of PWM control circuits 21 respectively modulate and output other four paths of pulse voltages, and the other four paths of pulse voltages are respectively supplied to the four blue lamps.
Therefore, with the light source system provided by this embodiment, the brightness contrast of the red light and the blue light in each group of light sources can be respectively adjusted through the eight-way PWM control circuit 21, so as to change the color of the light emitted by each group of light sources, thereby improving the identification and positioning effects.
In another embodiment of the present application, the light source controller further includes a master controller 22 disposed on the second circuit board 20, the PWM control circuit 21 includes a switching tube circuit, and the master controller 22 sends out a PWM signal for controlling the switching tube circuit to be turned on or off. Optionally, the switching tube circuit includes a switch whose on/off is controlled by the PWM signal, and the switch is a triode, an MOS tube, or an IGBT tube.
In order to realize remote control, a 485 communication module 23 is further arranged on the second circuit board 20, and the 485 communication module 23 is in communication connection with the master controller 22. Through 485 communication module 23, can realize remote control light source controller.
In any of the above embodiments, the second circuit board 20 is further provided with a linear power supply circuit, and the linear power supply circuit is electrically connected to the dc power supply, and is configured to convert an output voltage of the dc power supply and output a control voltage for supplying power to the main controller 22, the PWM control circuit 21, and the 485 communication module 23.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (8)
1. A light source system comprises a light source controller, and is characterized in that the light source controller comprises a first circuit board, a second circuit board and a third circuit board which are sequentially stacked;
the first circuit board is provided with a DC-DC power supply circuit used for connecting a direct-current power supply, the second circuit board is provided with at least one PWM control circuit, and the third circuit board is provided with at least one power supply output interface;
the DC-DC power supply circuit is used for converting the output voltage of the DC power supply and outputting at least one path of preset DC voltage;
and the PWM control circuit is used for modulating the direct-current voltage into pulse voltage with preset frequency and preset pulse width and outputting the pulse voltage to the power output interface.
2. The light source system of claim 1, further comprising:
the light source controller is fixedly arranged on the side wall of the fixing seat, and the light source is electrically connected with the power output interface.
3. The light source system of claim 2, wherein the fixing base is a square structure, the top surface of the fixing base is provided with a first set of light sources, the bottom surface of the fixing base is provided with a second set of light sources, and one side surface of the fixing base is provided with a third set of light sources for assisting the first set of light sources and a fourth set of light sources for assisting the second set of light sources.
4. The light source system according to claim 3, wherein the DC-DC power circuit outputs two preset DC voltages;
eight paths of PWM control circuits are arranged on the second circuit board;
eight power output interfaces are arranged on the third circuit board;
the first group of light sources, the second group of light sources, the third group of light sources and the fourth group of light sources comprise a red light and a blue light;
one path of preset direct current voltage is respectively supplied to four paths of PWM control circuits, the four paths of PWM control circuits respectively modulate and output four paths of pulse voltage, and the four paths of pulse voltage are respectively supplied to four red lamps;
and the other preset direct current voltage is respectively supplied to the other four PWM control circuits, the other four PWM control circuits respectively modulate and output other four pulse voltages, and the other four pulse voltages are respectively supplied to the four blue lamps.
5. The light source system according to claim 1, further comprising a master controller, wherein the PWM control circuit comprises a switching tube circuit, and the master controller sends out a PWM signal for controlling the switching tube circuit to be switched on and off.
6. The light source system according to claim 5, wherein a 485 communication module is further disposed on the second circuit board, and the 485 communication module is in communication connection with the master controller.
7. The light source system of claim 6, wherein a linear power supply circuit is further disposed on the second circuit board, and the linear power supply circuit is electrically connected to the dc power supply, and is configured to convert an output voltage of the dc power supply and output a control voltage for supplying power to the main controller, the PWM control circuit, and the 485 communication module.
8. The light source system according to claim 5, wherein the switch tube circuit comprises a switch controlled by the PWM signal, and the switch is a transistor, a MOS tube or an IGBT tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022873292.3U CN213783657U (en) | 2020-12-04 | 2020-12-04 | Light source system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022873292.3U CN213783657U (en) | 2020-12-04 | 2020-12-04 | Light source system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213783657U true CN213783657U (en) | 2021-07-23 |
Family
ID=76895960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022873292.3U Active CN213783657U (en) | 2020-12-04 | 2020-12-04 | Light source system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213783657U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112533333A (en) * | 2020-12-04 | 2021-03-19 | 东莞市凯格精机股份有限公司 | Light source system |
-
2020
- 2020-12-04 CN CN202022873292.3U patent/CN213783657U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112533333A (en) * | 2020-12-04 | 2021-03-19 | 东莞市凯格精机股份有限公司 | Light source system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102832836B (en) | Cascade boost and inverting buck converter with independent control | |
| US11783788B2 (en) | Display apparatus and display control method | |
| KR20120114813A (en) | Dc-dc converter and driving device of light source for display device using the same | |
| CN213783657U (en) | Light source system | |
| CN108650748A (en) | A kind of constant pressure dimming power source device being compatible with a variety of dimming modes | |
| US7274578B2 (en) | Converter circuit having class E converter modules | |
| CN103561528A (en) | LED power source platform capable of integrating various dimming ways | |
| US20230380028A1 (en) | Light dimming system | |
| US11711017B2 (en) | Adapter and control method thereof | |
| KR20120031215A (en) | Led driving device for lighting | |
| CN108156691B (en) | Non-point light source non-stroboscopic light modulation circuit | |
| CN112533333A (en) | Light source system | |
| US20200082978A1 (en) | Electronically controlled transformer | |
| US9942959B1 (en) | Phase-cut dimmable power supply with wide input voltage | |
| CN211406380U (en) | Power parallel driver | |
| CN211352536U (en) | Constant current load circuit, backlight adjusting circuit, driving board card and electronic equipment | |
| CN210629356U (en) | LLC power control circuit and power control device | |
| CN210609794U (en) | Commercial power direct drive type LED microwave induction lamp | |
| CN113347759A (en) | Five-channel LED driving circuit, driving method and LED lamp | |
| US9554427B2 (en) | Radio transmission between modules in a potential-separated LED converter | |
| CN113382506B (en) | Time-sharing multiplexing-based LED driving circuit, driving method and control circuit thereof | |
| CN104602392A (en) | Light emitting diode driving apparatus | |
| CN212381439U (en) | High-voltage industrial light source driving circuit | |
| CN102883512A (en) | LED (light-emitting diode) backlight control circuit | |
| US11765802B2 (en) | Isolated primary side switched converter for LED loads |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |