CN212588549U - Lighting system and lighting unit - Google Patents
Lighting system and lighting unit Download PDFInfo
- Publication number
- CN212588549U CN212588549U CN202021735897.XU CN202021735897U CN212588549U CN 212588549 U CN212588549 U CN 212588549U CN 202021735897 U CN202021735897 U CN 202021735897U CN 212588549 U CN212588549 U CN 212588549U
- Authority
- CN
- China
- Prior art keywords
- voltage
- current source
- controlled current
- color temperature
- lamp
- 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 invention discloses a lighting system and a lighting unit, the lighting system includes: the direct current power supply unit is provided with a positive wire, a negative wire and a neutral wire, and the positive wire and the negative wire can respectively carry out voltage regulation; the lighting unit comprises a first voltage-controlled current source, a second voltage-controlled current source, a first color temperature lamp and a second color temperature lamp, wherein the input end of the first voltage-controlled current source is electrically connected with a positive line, the output end of the first voltage-controlled current source is electrically connected with the first color temperature lamp, the input end of the second voltage-controlled current source is electrically connected with a negative line, the output end of the second voltage-controlled current source is electrically connected with the second color temperature lamp, and the negative ends of the first voltage-controlled current source and the second voltage-controlled current source are respectively electrically connected with the central line. The lighting system and the lighting unit provided by the invention can realize the adjustment of the color temperature and the brightness of the lamp, and the lamp has a simple structure and high reliability.
Description
Technical Field
The invention relates to the technical field of illuminating lamps, in particular to an illuminating system and an illuminating unit.
Background
The LED lamp illumination is one of the necessities of modern life, and the illumination is mainly used for indoor decorative lamps, indoor common illumination, outdoor advertisement sign illumination and other illumination, and almost covers all industries. Most of the LED lamps are in a direct lighting type, the brightness cannot be adjusted, and when the ambient brightness is high, the brightness cannot be reduced, so that waste is easily caused; the lamp with two color temperatures is also of a direct lighting type when used, the lamp with one color is lighted at one time, the two colors are mutually switched, the lamp belongs to the simplest application of the lamp with two color temperatures, and the linear change of the two color temperatures is avoided.
The currently used color temperature and brightness adjusting LED lamps are mainly divided into two types:
1. the method of detecting the switching times is adopted, and then the mixing mode of the brightness of the cold and warm color temperature light source is changed, so that a plurality of grades of different color temperatures and brightness are configured. However, the method of switching times is only suitable for a few gears, the adjustment range of the color temperature is limited, and the daily operation is troublesome.
2. By adopting a communication control mode, the supply current of the cold and warm color temperature light sources is changed by receiving the control signal, so that the color temperature and the brightness are linearly adjusted. However, in the communication mode, an additional control circuit (such as RS232/485) needs to be added or a wireless communication mode (such as bluetooth, WiFi, Zigbee, Lora, etc.) needs to be used to adjust the cold and warm color ratio, thereby achieving the effect of adjusting the color temperature and the brightness. Therefore, each lamp needs to be correspondingly added with a communication module, the implementation cost is high, communication is easily interfered, the reliability of the lamp is poor due to the complex structure, the comprehensive cost performance is not high, and the lamp is not suitable for large-scale popularization and application.
Disclosure of Invention
The invention aims to provide an illumination system and an illumination unit, which can realize the adjustment of the color temperature and the brightness of a lamp, and the lamp has a simple structure and high reliability.
The technical scheme adopted by the illumination system disclosed by the invention is as follows:
an illumination system, comprising: the direct current power supply unit is provided with a positive wire, a negative wire and a neutral wire, and the positive wire and the negative wire can respectively carry out voltage regulation; the lighting unit comprises a first voltage-controlled current source, a second voltage-controlled current source, a first color temperature lamp and a second color temperature lamp, wherein the input end of the first voltage-controlled current source is electrically connected with a positive line, the output end of the first voltage-controlled current source is electrically connected with the first color temperature lamp, the input end of the second voltage-controlled current source is electrically connected with a negative line, the output end of the second voltage-controlled current source is electrically connected with the second color temperature lamp, and the negative ends of the first voltage-controlled current source and the second voltage-controlled current source are respectively electrically connected with the central line.
Preferably, the input voltage of the first voltage-controlled current source is in a linear relationship with the output current thereof.
Preferably, the input voltage of the second voltage-controlled current source is in a linear relationship with the output current thereof.
Preferably, the first color temperature lamp is a cold color lamp, and the second color temperature lamp is a warm color lamp.
This scheme still provides a lighting unit, including first voltage-controlled current source, second voltage-controlled current source, first color temperature lamp and second color temperature lamp, first voltage-controlled current source's input is used for being connected with the positive polar line electricity of direct current power supply unit, first voltage-controlled current source's output is connected with first color temperature lamp electricity, second voltage-controlled current source's input is used for being connected with the negative pole line electricity of direct current power supply unit, second voltage-controlled current source's output is connected with second color temperature lamp electricity, first voltage-controlled current source and second voltage-controlled current source's negative pole end is used for being connected with the central line electricity of direct current power supply unit respectively.
The embodiment disclosed by the invention has the beneficial effects that: the direct current power supply unit supplies power to the illumination unit by arranging a positive wire, a negative wire and a middle wire. The first color temperature lamp is mounted on the positive line and the middle line through the first voltage-controlled current source to realize illumination, and the second color temperature lamp is mounted on the negative line and the middle line through the second voltage-controlled current source to realize illumination. Since the output currents of the first voltage-controlled current source and the first voltage-controlled current source are related to the input voltage, when the voltage of the positive line and the negative line is adjusted, the output currents of the first voltage-controlled current source and the first voltage-controlled current source are adjusted. The output currents of the first voltage-controlled current source and the second voltage-controlled current source are used for adjusting the brightness of the lighting unit, and the ratio of the output currents of the first voltage-controlled current source and the second voltage-controlled current source is used for adjusting the color temperature of the lighting unit. In the scheme, the lighting unit is supplied with direct current through the positive wire, the negative wire and the neutral wire, so that an AC/DC converter and a corresponding electrolytic capacitor are omitted. And then, the power supply current of the lighting unit is adjusted by adjusting the voltage of the positive wire and the negative wire, so that a communication module is omitted. Therefore, compared with the existing lamp, the lighting unit has a simple structure and high reliability.
Drawings
Fig. 1 is a schematic view of the structure of the illumination system of the present invention.
Fig. 2 is a V-I schematic of a voltage controlled current source.
Detailed Description
The invention will be further elucidated and described with reference to the embodiments and drawings of the specification:
referring to fig. 1, the illumination system includes:
and the direct current power supply unit is provided with a positive wire, a negative wire and a neutral wire. The positive electrode wire and the negative electrode wire can be respectively subjected to voltage regulation.
The lighting unit comprises a first voltage-controlled current source, a second voltage-controlled current source, a first color temperature lamp and a second color temperature lamp. The input end of the first voltage-controlled current source is electrically connected with the positive wire, the output end of the first voltage-controlled current source is electrically connected with the first color temperature lamp, the input end of the second voltage-controlled current source is electrically connected with the negative wire, the output end of the second voltage-controlled current source is electrically connected with the second color temperature lamp, and the negative ends of the first voltage-controlled current source and the second voltage-controlled current source are respectively electrically connected with the middle wire.
The direct current power supply unit supplies power to the illumination unit by arranging a positive wire, a negative wire and a middle wire. The first color temperature lamp is mounted on the positive line and the middle line through the first voltage-controlled current source to realize illumination, and the second color temperature lamp is mounted on the negative line and the middle line through the second voltage-controlled current source to realize illumination. Since the output currents of the first voltage-controlled current source and the first voltage-controlled current source are related to the input voltage, when the voltage of the positive line and the negative line is adjusted, the output currents of the first voltage-controlled current source and the first voltage-controlled current source are adjusted. The output currents of the first voltage-controlled current source and the second voltage-controlled current source are used for adjusting the brightness of the lighting unit, and the ratio of the output currents of the first voltage-controlled current source and the second voltage-controlled current source is used for adjusting the color temperature of the lighting unit. In the scheme, the lighting unit is supplied with direct current through the positive wire, the negative wire and the neutral wire, so that an AC/DC converter and a corresponding electrolytic capacitor are omitted. And then, the power supply current of the lighting unit is adjusted by adjusting the voltage of the positive wire and the negative wire, so that a communication module is omitted. Therefore, compared with the existing lamp, the lighting unit has a simple structure and high reliability.
In this embodiment, the input end of the dc power supply unit is used for connecting an ac mains supply, and the dc power supply unit rectifies and filters the ac mains supply and then outputs a dc power with adjustable voltage. Since the AC commercial power is AC/DC converted in the DC power supply unit, the AC/DC conversion is not required in the lighting unit, and it is only necessary to output DC power for driving lamps of different color temperatures by the voltage-controlled current source. After the AC/DC converter is omitted, the corresponding electrolytic capacitor is correspondingly omitted, so that the structure of the lighting unit is simple, the size is reduced, and the cost is reduced.
Referring to fig. 2, the input voltage of the first voltage-controlled current source is linearly related to the output current thereof, and the input voltage of the second voltage-controlled current source is linearly related to the output current thereof. Therefore, only the output voltage of the direct current power supply unit needs to be linearly adjusted, and the linear adjustment of the output current of the voltage-controlled current source can be realized, so that the linear adjustment of the color temperature and the brightness of the lighting unit is realized.
Specifically, the first color temperature lamp is a cold color lamp, and the second color temperature lamp is a warm color lamp. The linear adjustment of the power supply current of the cold color lamp and the power supply current of the warm color lamp are adopted to realize the linear adjustment of the color temperature and the brightness of the lighting unit in a larger range.
Referring to fig. 1 again, the present embodiment further provides a lighting unit, which includes a first voltage-controlled current source, a second voltage-controlled current source, a first color temperature lamp and a second color temperature lamp. The input end of the first voltage-controlled current source is used for being electrically connected with a positive line of the direct-current power supply unit, the output end of the first voltage-controlled current source is electrically connected with the first color temperature lamp, the input end of the second voltage-controlled current source is used for being electrically connected with a negative line of the direct-current power supply unit, the output end of the second voltage-controlled current source is electrically connected with the second color temperature lamp, and the negative ends of the first voltage-controlled current source and the second voltage-controlled current source are respectively used for being electrically connected with a central line of the direct.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (5)
1. An illumination system, comprising:
the direct current power supply unit is provided with a positive wire, a negative wire and a neutral wire, and the voltages of the positive wire and the negative wire can be respectively adjusted;
the lighting unit comprises a first voltage-controlled current source, a second voltage-controlled current source, a first color temperature lamp and a second color temperature lamp, wherein the input end of the first voltage-controlled current source is electrically connected with a positive line, the output end of the first voltage-controlled current source is electrically connected with the first color temperature lamp, the input end of the second voltage-controlled current source is electrically connected with a negative line, the output end of the second voltage-controlled current source is electrically connected with the second color temperature lamp, and the negative ends of the first voltage-controlled current source and the second voltage-controlled current source are respectively electrically connected with the central line.
2. The lighting system of claim 1, wherein the input voltage of the first voltage controlled current source is linear with its output current.
3. The lighting system of claim 1, wherein the input voltage of the second voltage controlled current source is linear with its output current.
4. The illumination system of claim 1, wherein the first color temperature lamp is a cold color lamp and the second color temperature lamp is a warm color lamp.
5. The utility model provides an illumination unit, its characterized in that, includes first voltage-controlled current source, second voltage-controlled current source, first color temperature lamp and second color temperature lamp, first voltage-controlled current source's input is used for being connected with the positive polar line electricity of direct current supply unit, first voltage-controlled current source's output is connected with first color temperature lamp electricity, second voltage-controlled current source's input is used for being connected with the negative pole line electricity of direct current supply unit, second voltage-controlled current source's output is connected with second color temperature lamp electricity, first voltage-controlled current source and second voltage-controlled current source's negative pole end is used for being connected with the central line electricity of direct current supply unit respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021735897.XU CN212588549U (en) | 2020-08-17 | 2020-08-17 | Lighting system and lighting unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021735897.XU CN212588549U (en) | 2020-08-17 | 2020-08-17 | Lighting system and lighting unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212588549U true CN212588549U (en) | 2021-02-23 |
Family
ID=74652562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021735897.XU Active CN212588549U (en) | 2020-08-17 | 2020-08-17 | Lighting system and lighting unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212588549U (en) |
-
2020
- 2020-08-17 CN CN202021735897.XU patent/CN212588549U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101855800B (en) | DC low voltage distribution box for indoor multi leds lamp | |
| CN201995188U (en) | LED (light-emitting diode) film and television lamp with adjustable color temperature and brightness | |
| CN102679190A (en) | Illuminating system and energy-saving lamps thereof | |
| CN203120261U (en) | Intelligent LED lamp dimming control system | |
| CN108696967A (en) | A kind of light modulation toning driving circuit of LED light | |
| CN219372632U (en) | LED lamp dimming device | |
| CN212588549U (en) | Lighting system and lighting unit | |
| CN208337946U (en) | A kind of light modulation toning driving circuit of LED light | |
| CN204131801U (en) | A kind of Intelligent LED lamp of low-power consumption Bluetooth control | |
| CN217406764U (en) | LED drive circuit | |
| CN102647838A (en) | Conversion module of electronic ballast-driven LED (light emitting diode) | |
| CN107046747A (en) | A kind of LED adjusting control circuit | |
| CN2886308Y (en) | Electronic ballast type energy-saving lamp | |
| CN201651825U (en) | Photosensitive automatic dimming LED lamp | |
| CN208210364U (en) | A kind of non-isolated high PF blue-tooth intelligence light adjusting circuit structure | |
| CN209659659U (en) | A kind of brightness-adjusting of LED light source and the device of colour temperature | |
| CN201869406U (en) | LED (light-emitting diode) control diming decoder | |
| CN201430712Y (en) | Self-adaption illumination adjusting device | |
| CN2785302Y (en) | Self-adaptive LED illuminating system constant-current source equipment | |
| CN206136373U (en) | LED drive circuit of colour temperature modulation based on 2. 4G | |
| CN210469793U (en) | LED panel light controlled by mobile phone | |
| CN216057569U (en) | LED lamp with timing function | |
| CN210781439U (en) | Power supply assembly for LED light-changing module | |
| CN216491135U (en) | LED lamp capable of setting color temperature and power in multiple stages | |
| CN109788607A (en) | LED dimmer, LED light adjusting system and its control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |