CN215222554U

CN215222554U - Light-emitting device and light-emitting system

Info

Publication number: CN215222554U
Application number: CN202120536182.XU
Authority: CN
Inventors: 陈琰表; 曹亮亮; 林泉; 吴庆荣
Original assignee: Leedarson Lighting Co Ltd
Current assignee: Leedarson Lighting Co Ltd; Zhangzhou Lidaxin Optoelectronic Technology Co ltd
Priority date: 2021-03-15
Filing date: 2021-03-15
Publication date: 2021-12-17
Anticipated expiration: 2031-03-15

Abstract

The utility model is suitable for a light source technical field provides a light-emitting device and lighting system, wherein, light-emitting device includes drive circuit, ruddiness light source, green glow light source, blue light source, first colour temperature white light source and second colour temperature white light source; the driving circuit is respectively connected with the red light source, the green light source, the blue light source, the first color temperature white light source and the second color temperature white light source, so as to respectively adjust the luminous flux of each light source, the white light in the first color temperature range is emitted through the matching of the first color temperature white light source, the red light source and the green light source, the weight of the red light component emitted by the white light source in the light emitting process can be reduced, the usage amount of red fluorescent powder can be reduced, the luminous flux of the white light in the first color temperature range is improved, the luminous flux of the red light source and the luminous flux of the green light source are adjusted through the driving circuit, the color rendering index of the white light in the first color temperature range can be improved, and the white light in the first color temperature range has higher luminous flux and higher color rendering index.

Description

Light-emitting device and light-emitting system

Technical Field

The utility model belongs to the technical field of the light source, especially, relate to a light emitting device and lighting system.

Background

With the continuous development of light source technology, various types of light emitting devices such as lighting sources, decorative light sources, advertisement light source boxes, alarm light sources and the like are developed, and great convenience is brought to daily production and life of people. In different applications, the color temperature of the light emitting device needs to be changed sometimes, most of the existing light emitting devices change the color temperature by adjusting the luminous flux, and to achieve a low color temperature, the luminous flux needs to be reduced usually, which easily causes the luminous flux to be too low.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiments of the present invention provide a light emitting device and a light emitting system to solve the problem that to realize low color temperature, the luminous flux is generally required to be reduced, which easily results in too low luminous flux.

A first aspect of an embodiment of the present invention provides a light emitting device, including a driving circuit, a red light source, a green light source, a blue light source, a first color temperature white light source, and a second color temperature white light source;

the driving circuit is respectively connected with the red light source, the green light source, the blue light source, the first color temperature white light source and the second color temperature white light source so as to respectively adjust the luminous flux of each light source;

when the first color temperature white light source, the red light source and the green light source are turned on and the second color temperature white light source and the blue light source are turned off, the light-emitting device emits white light in a first color temperature range;

when the first color temperature white light source, the second color temperature white light source and the green light source are turned on and the red light source and the blue light source are turned off, the light-emitting device emits white light in a second color temperature range;

when the second color temperature white light source and the blue light source are turned on and the first color temperature white light source, the red light source and the green light source are turned off, the light-emitting device emits white light in a third color temperature range;

when the red light source, the green light source and the blue light source are turned on and the first color temperature white light source and the second color temperature white light source are turned off, the light-emitting device emits light of at least one color.

In one embodiment, the drive circuit includes a human-computer interaction circuit and a control circuit;

the man-machine interaction circuit is connected with the control circuit;

the man-machine interaction circuit is used for receiving a control signal sent by a user and triggering the control circuit to respectively adjust the luminous flux of each light source according to the control signal.

In one embodiment, the human-computer interaction circuit comprises a radio frequency receiving module;

the radio frequency receiving module is electrically connected with the control circuit to receive a wireless control signal sent by a user through the wireless control equipment and trigger the control circuit to respectively adjust the luminous flux of each light source according to the wireless control signal.

In one embodiment, the driving circuit comprises a rectifying circuit, wherein the rectifying circuit comprises a transient suppression diode and a rectifying bridge consisting of four diodes;

the first input end of the rectifier bridge is respectively connected with the cathode of the transient suppression diode and the first end of the power supply, and the second input end of the rectifier bridge is respectively connected with the anode of the transient suppression diode and the second end of the power supply;

the rectifying circuit is used for being connected with a power supply and rectifying alternating current of the power supply and then outputting direct current.

In one embodiment, the driving circuit comprises a filter circuit, wherein the filter circuit comprises a first inductor, a first resistor, a second resistor, a first diode, a second diode, a first passive capacitor, a first active capacitor and a second active capacitor;

the filter circuit is respectively connected with the rectifying circuit, the control circuit and each light source;

the first end of the first inductor is connected with the rectifying circuit, the first end of the first resistor and the first end of the first electrodeless capacitor respectively, the second end of the first inductor is connected with the second end of the first resistor and the anode of the first diode respectively, the cathode of the first diode is connected with the first end of the second resistor and the cathode of the second diode respectively, the second end of the second resistor is connected with the anode of the second diode and the anode of the first electrode capacitor respectively, the cathode of the first electrode capacitor is connected with the second end of the first electrodeless capacitor, the anode of the second electrode capacitor is connected with the cathode of the first diode, the cathode of the second diode, the first end of the second resistor and each light source, and the cathode of the second electrode capacitor is connected with the control circuit.

The filter circuit is used for acquiring direct current output by the rectifying circuit, filtering the direct current, and supplying power to any one light source when any one light source is started.

In one embodiment, the driving circuit comprises a first power supply circuit, wherein the first power supply circuit comprises a third diode, a fourth diode, a fifth diode, a second electrodeless capacitor, a third active capacitor, a fourth active capacitor, a first buck chip, a voltage stabilizing diode, a third resistor, a fourth resistor, a fifth resistor, a field effect transistor, a second inductor and a third electrodeless capacitor;

the first power supply circuit is respectively connected with the control circuit and the filter circuit;

the anode of the third diode is connected with the cathode of the first diode, the cathode of the third diode is respectively connected with the second end of the first inductor, the drain of the first buck chip and the anode of the third polar capacitor, the power supply end of the first buck chip is respectively connected with the output end of the first buck chip, the anode of the voltage stabilizing diode, the second end of the fifth resistor, the grid of the field effect tube and the first end of the second polar capacitor, the current sampling end of the first buck chip is connected with the first end of the third resistor, the cathode of the voltage stabilizing diode is connected with the cathode of the fifth diode, the anode of the fifth diode is respectively connected with the control circuit, the first end of the fourth resistor, the anode of the fourth polar capacitor, the second end of the second inductor and the first end of the third polar capacitor, the first end of the second inductor is respectively connected with the second end of the second polar capacitor, the second end of the third resistor and the cathode of the fourth diode, the anode of the fourth diode is respectively connected with the second end of the fourth resistor, the cathode of the fourth active capacitor and the drain of the field effect transistor, and the source of the field effect transistor is respectively connected with the first end of the fifth resistor and the cathode of the third active capacitor;

the first power supply circuit is used for obtaining the direct current filtered by the filter circuit, reducing the voltage and supplying power to the control circuit.

In one embodiment, the driving circuit comprises a second power supply circuit, and the second power supply circuit comprises a second buck chip, a third buck chip, a fourth electrodeless capacitor, a fifth electrodeless capacitor, a fourth polar capacitor, a sixth diode, a seventh diode, a third inductor, a sixth resistor, a seventh resistor and an eighth resistor;

the second power supply circuit is respectively connected with the human-computer interaction circuit and the filter circuit;

the drain electrode of the second buck chip is connected with the second end of the first inductor, the power supply end of the second buck chip is respectively connected with the cathode of the sixth diode and the first end of the fourth electrodeless capacitor, the current sampling end of the second buck chip is respectively connected with the first end of the sixth resistor and the first end of the seventh resistor, the second end of the sixth resistor is respectively connected with the second end of the seventh resistor, the cathode of the seventh diode and the output end of the second buck chip, the output end of the second buck chip is respectively connected with the second end of the fourth electrodeless capacitor and the first end of the third inductor, the second end of the third inductor is respectively connected with the anode of the sixth diode, the first end of the eighth resistor, the anode of the fourth electrode capacitor and the input end of the third buck chip, the output end of the third buck chip is respectively connected with the first end of the fifth electrodeless capacitor and the man-machine interaction circuit, and the second end of the fifth electrodeless capacitor is respectively connected with the anode of the seventh diode, the first end of the fourth electrodeless capacitor and the man-machine interaction circuit, And the second end of the eighth resistor is connected with the negative electrode of the fourth active capacitor.

The second power supply circuit is used for obtaining the direct current filtered by the filter circuit, reducing the voltage and supplying power to the human-computer interaction circuit.

In one embodiment, the first color temperature range is less than or equal to the first color temperature, the second color temperature range is greater than the first color temperature and less than the second color temperature, and the third color temperature range is greater than or equal to the second color temperature.

In one embodiment, the first color temperature ranges from 2200K to 4000K, and the second color temperature ranges from 4000K to 10000K.

A second aspect of the embodiments of the present invention provides a lighting system, including a wireless control device and the embodiments of the present invention provide in a first aspect a lighting device.

A first aspect of an embodiment of the present invention provides a light emitting device, including a driving circuit, a red light source, a green light source, a blue light source, a first color temperature white light source, and a second color temperature white light source; the driving circuit is respectively connected with the red light source, the green light source, the blue light source, the first color temperature white light source and the second color temperature white light source to respectively adjust the luminous flux of each light source, the white light in the first color temperature range is emitted through the matching of the first color temperature white light source, the red light source and the green light source, the weight of the red light source in the three light sources during light emission can be reduced, the using amount of red fluorescent powder can be reduced, the luminous flux of the white light in the first color temperature range is improved, the luminous flux of the red light source and the luminous flux of the green light source are adjusted through the driving circuit, the color rendering index of the white light in the first color temperature range can be improved, and the white light in the first color temperature range has higher luminous flux and higher color rendering index.

It is understood that the beneficial effects of the second aspect can be referred to the related description of the first aspect, and are not described herein again.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic view of a first structure of a light emitting device according to an embodiment of the present invention;

fig. 2 is a schematic chromaticity diagram of white light with a color temperature of 2000K obtained by mixing white light with a first color temperature, green light and red light when the first color temperature provided by the embodiment of the present invention is 2700K;

fig. 3 is a schematic spectrum diagram of red light, green light and blue light provided by the embodiment of the present invention;

fig. 4 is a schematic spectrum diagram of white light with a color temperature of 2700K and white light with a color temperature of 7000K provided by the embodiment of the present invention;

fig. 5 is a schematic spectrum diagram of white light with a color temperature of 2000K obtained by mixing white light with a first color temperature, green light and red light when the first color temperature provided by the embodiment of the present invention is 2700K;

fig. 6 is a first schematic structural diagram of a driving circuit according to an embodiment of the present invention;

fig. 7 is a schematic diagram of a second structure of a driving circuit according to an embodiment of the present invention;

fig. 8 is a schematic diagram of a third structure of a driving circuit according to an embodiment of the present invention;

fig. 9 is a schematic diagram of a fourth structure of a driving circuit according to an embodiment of the present invention;

fig. 10 is a schematic diagram of a fifth structure of a driving circuit according to an embodiment of the present invention;

fig. 11 is a schematic view of a first structure of a lighting system according to an embodiment of the present invention;

Detailed Description

In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

It should be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It should also be understood that the term "and/or" as used in the specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

As used in the specification and the appended claims, the term "if" may be interpreted contextually as "when", "upon" or "in response to a determination" or "in response to a detection". Similarly, the phrase "if it is determined" or "if a [ described condition or event ] is detected" may be interpreted contextually to mean "upon determining" or "in response to determining" or "upon detecting [ described condition or event ]" or "in response to detecting [ described condition or event ]".

Furthermore, in the description of the present invention and the appended claims, the terms "first," "second," "third," and the like are used for distinguishing between descriptions and not necessarily for describing or implying relative importance.

Reference throughout this specification to "one embodiment" or "some embodiments," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present invention. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless expressly specified otherwise.

In application, in the prior art, a red light source, a green light source and a blue light source are generally mixed to obtain white light, when a white light low color temperature light source needs to be manufactured, for example, a white light source with a color temperature of 2000K, in order to ensure a color rendering index of the white light with a low color temperature, the red light source needs to use more red phosphor, but the excitation efficiency of the red phosphor is low, which easily results in low luminous flux of the white light with a low color temperature. If a white light with a low color temperature is to have a high color rendering index and a high luminous flux, it is necessary to use more red phosphor, resulting in an excessive production cost.

As shown in fig. 1, an embodiment of the present invention provides a light emitting device 1, which includes a driving circuit 10, a red light source 20, a green light source 30, a blue light source 40, a first color temperature white light source 50, and a second color temperature white light source 60;

the driving circuit 10 is respectively connected with the red light source 20, the green light source 30, the blue light source 40, the first color temperature white light source 50 and the second color temperature white light source 60 to respectively adjust the luminous flux of each light source;

when the first color temperature white light source 50, the red light source 20 and the green light source 30 are turned on and the second color temperature white light source 60 and the blue light source 40 are turned off, the light-emitting device 1 emits white light in a first color temperature range;

when the first color temperature white light source 50, the second color temperature white light source 60 and the green light source 30 are turned on and the red light source 20 and the blue light source 40 are turned off, the light-emitting device 1 emits white light in the second color temperature range;

when the second color temperature white light source 60 and the blue light source 40 are turned on and the first color temperature white light source 50, the red light source 20 and the green light source 30 are turned off, the light-emitting device 1 emits white light in a third color temperature range;

when the red light source 20, the green light source 30 and the blue light source 40 are turned on and the first color temperature white light source 50 and the second color temperature white light source 60 are turned off, the light emitting device 1 emits light of at least one color.

In application, the light emitting device may be a lighting device, a decoration device, an advertising light box, an alarm device, or the like. Each light source may be implemented by a light-emitting diode (LED), wherein the white light source is implemented by a blue LED chip and yellow phosphor powder covering the blue LED chip, or by a blue LED chip and yellow phosphor powder and red phosphor powder covering the blue LED chip, or by a blue LED chip and red phosphor powder and green phosphor powder covering the blue LED chip, or by an ultraviolet LED chip and RGB phosphor powder (i.e., red phosphor powder, green phosphor powder and blue phosphor powder) covering the ultraviolet LED chip; the red light source is realized by a blue light LED chip and red fluorescent powder covering the blue light LED chip, or is realized by a red light LED chip; the green light source is realized by a blue LED chip and green fluorescent powder covering the blue LED chip, or realized by a green LED chip; the blue light source is realized through a blue light LED chip, or through a purple light LED chip and blue fluorescent powder covering the purple light LED chip. The yellow fluorescent powder can be yttrium aluminum garnet fluorescent powder, silicate fluorescent powder and nitride fluorescent powder, the red fluorescent powder can be potassium fluosilicate (KSF) fluorescent powder and aluminate red fluorescent powder, the green fluorescent powder can be aluminate green fluorescent powder, and the blue fluorescent powder can be europium-doped blue fluorescent powder. The driving circuit can adjust the luminous flux of each light source by controlling the current output to each light source.

In application, when the first color temperature white light source, the red light source and the green light source are turned on and the second color temperature white light source and the blue light source are turned off, the light flux of any one light source, or any two light sources, or three light sources of the first color temperature white light source, the red light source and the green light source is adjusted by the driving circuit, so that the color temperature of the white light emitted by the light-emitting device can be adjusted within a first color temperature range; when the light-emitting device emits white light in a first color temperature range, the light flux of any one or two of the red light source and the green light source is adjusted through the driving circuit, so that the color coordinate of the white light in the first color temperature range can be positioned near the black body track, and the color rendering index of the white light in the first color temperature range is improved; the white light in the first color temperature range is emitted through the matching of the first color temperature white light source, the red light source and the green light source, and the weight of red light components emitted by the white light source during light emission can be reduced, so that the usage amount of red fluorescent powder can be reduced, the luminous flux of the white light in the first color temperature range is improved, and the white light in the first color temperature range has higher color rendering index and higher luminous flux.

In application, when the first color temperature white light source, the second color temperature white light source and the green light source are turned on and the red light source and the blue light source are turned off, the light flux of any one or two of the first color temperature white light source and the second color temperature white light source is adjusted through the driving circuit, so that the color temperature of the white light emitted by the light-emitting device can be adjusted within the second color temperature range; when the light emitting device emits white light of the second color temperature range, the amount of the luminous flux of the green light source is adjusted by the driving circuit, and compensation can be performed when the color tolerance of the white light of the second color temperature range exceeds 5SDCM (Standard development of color Matching) to control the color tolerance of the white light of the second color temperature range to be less than 5 SDCM.

In the application, when second colour temperature white light source and blue light source open and first colour temperature white light source, ruddiness light source and green glow light source close, adjust the luminous flux size of arbitrary one kind light source or two kinds of light sources in second colour temperature white light source and the blue light source through drive circuit, can improve illuminator's colour temperature, the colour temperature of the white light that makes illuminator send can be adjusted in third colour temperature range, simultaneously through the luminous flux of adjusting blue light source, can improve the color rendering index of the white light of third colour temperature range.

In application, when the red light source, the green light source and the blue light source are turned on and the first color temperature white light source and the second color temperature white light source are turned off, the light-emitting device can emit polychromatic light formed by mixing red light, green light and blue light, the polychromatic light can be light of one color or light of multiple colors, the luminous flux of any one light source, any two light sources or three light sources in the red light source, the green light source and the blue light source can be adjusted through the driving circuit, and the color type and the color number of the polychromatic light can be controlled.

In application, the first color temperature range, the second color temperature range and the third color temperature range are determined according to the size of the first color temperature and the second color temperature.

In application, the first color temperature white light source may be a white light source with a lower color temperature, and the value range of the first color temperature may be 2200K to 4000K, specifically, may be a white light source with a color temperature of 2700K or a white light source with a color temperature of 3000K; the second color temperature white light source can be a white light source with a higher color temperature, the value range of the second color temperature can be 4000K to 10000K, and specifically, the second color temperature white light source can be a white light source with a color temperature of 7000K. The specific color temperature of the first color temperature and the second color temperature can be set according to actual needs.

In application, through the combination of a red light source, a green light source, a blue light source, a first color temperature white light source and a second color temperature white light source, white light with a plurality of color temperature ranges can be emitted in one light-emitting device, so that the general applicability of the light-emitting device is improved; the white light in the first color temperature range emitted by the light-emitting device has a higher color rendering index and higher luminous flux, so that excessive red fluorescent powder is not used, and the performance of emitting the white light with low color temperature by the light-emitting device is improved.

Fig. 2 schematically shows a chromaticity diagram of white light with a color temperature of 2000K obtained by mixing white light, green light and red light with a first color temperature of 2700K.

Fig. 3 schematically shows the spectrum of red, green and blue light, wherein the abscissa of the spectrum represents wavelength in nanometers and the ordinate of the spectrum represents absorbance.

Fig. 4 shows an exemplary spectral diagram of white light with a color temperature of 2700K and of 7000K.

Fig. 5 schematically shows a spectrum diagram of white light with a color temperature of 2000K obtained by mixing white light with a first color temperature, green light and red light when the first color temperature is 2700K.

As shown in fig. 6, in one embodiment, the driving circuit 10 includes a human-computer interaction circuit 11 control circuit 12;

the man-machine interaction circuit 11 is connected with the control circuit 12;

the human-computer interaction circuit 11 is used for receiving a control signal sent by a user and triggering the control circuit 12 to respectively adjust the luminous flux of each light source according to the control signal.

In application, the human-computer interaction circuit can comprise a key and/or a wireless receiving module and the like; the key is connected with the control circuit and used for receiving a control signal input by a user through pressing operation and triggering the control circuit to respectively drive each white light source and each color light source to be turned on, turned off or changed in luminous flux according to the control signal; the wireless receiving module is electrically connected with the control circuit to receive a wireless control signal sent by a user through the wireless control equipment, and triggers the control circuit to respectively adjust the luminous flux of each white light source and each color light source according to the wireless control signal.

In application, the wireless receiving module may include a radio frequency receiving module and/or a photoelectric conversion module; the radio frequency receiving module can comprise at least one of a Bluetooth module, a WiFi module, a ZigBee module, a mobile communication module, a data transmission radio module and the like, and is used for converting radio frequency signals sent by a user through a mobile phone, a tablet computer, an intelligent bracelet, a personal digital assistant and other user terminals based on radio frequency technology into electric signals and triggering a control circuit to respectively drive each white light source and each color light source to be turned on, turned off or changed in luminous flux according to the electric signals; the photoelectric conversion module may include a photodiode or a phototransistor, and is configured to convert a white light signal sent by a user through a visible light control device based on an optical communication technology, an infrared control device (e.g., a remote controller), and the like into an electrical signal, and trigger the control circuit to adjust the luminous flux of each white light source and each color light source according to the electrical signal.

In application, the driving circuit may further include a rectifying circuit, a filter circuit, a power supply circuit, and the like, where the rectifying circuit is used to access a power supply (e.g., commercial power) and rectify the power supply and output the rectified power supply to the filter circuit; the filter circuit is connected with the rectifying circuit and used for filtering the rectified power supply and then respectively outputting each light source and the power supply circuit; and the power supply circuit is connected with the filter circuit and used for outputting the filtered external power supply to the control circuit and the man-machine interaction circuit after voltage stabilization and reduction so as to supply power to the control circuit and the man-machine interaction circuit.

As shown in fig. 7, in one embodiment, the driving circuit 10 includes a rectifying circuit 13, and the rectifying circuit 13 includes a transient suppression diode 131 and a rectifying bridge 132 composed of four diodes;

a first input terminal of the rectifier bridge 132 is connected to a cathode of the transient suppression diode 131 and a first terminal of the power supply 133, respectively, and a second input terminal of the rectifier bridge 132 is connected to an anode of the transient suppression diode 131 and a second terminal of the power supply 133, respectively;

the rectifier circuit 13 is connected to the power supply 133, and rectifies the ac power of the power supply 133 to output dc power.

In application, the ground terminal of the rectifier bridge is grounded. The rectifier bridge is used for rectifying sine wave alternating current input by a power supply and then outputting direct current without negative half cycles, specifically, when the frequency of the alternating current input by the power supply is 50Hz, the frequency of the direct current output by the rectifier bridge is 100Hz, and when the frequency of the alternating current input by the power supply is 60Hz, the frequency of the direct current output by the rectifier bridge is 120Hz, wherein the power supply can be commercial power. When the voltages of the first end of the power supply and the second end of the power supply do not exceed the breakdown voltage of the transient suppression diode, the transient suppression diode does not work and is in a high-resistance state; when the voltage of the first end of the power supply and the voltage of the second end of the power supply exceed the breakdown voltage of the transient suppression diode, the transient suppression diode is reversely broken down and is changed from a high resistance state to a low resistance state, and overlarge voltage can be introduced into the second end of the power supply from the first end of the power supply to protect the light-emitting device.

In one embodiment, the rectifying circuit 13 further includes a fuse 134;

a fuse 134 is connected between a first terminal of the power supply 133 and a first input terminal of the rectifier bridge 132;

the fuse 134 is used for disconnecting the power supply 133 from the rectifier bridge 132 to protect the rectifier circuit when the current flowing through the fuse 134 exceeds a preset threshold.

In application, the fuse and the transient suppression diode are adopted to realize double insurance of the rectifier circuit, so that the rectifier circuit is prevented from being damaged by overlarge voltage, the pressure resistance of the light-emitting device is improved, and the power utilization risk is reduced.

As shown in fig. 8, in one embodiment, the driving circuit 10 includes a filter circuit 14, and the filter circuit 14 includes a first inductor 141, a first resistor 142, a second resistor 143, a first diode 144, a second diode 145, a first passive capacitor 146, a first active capacitor 147, and a second active capacitor 148;

the filter circuit 14 is connected with the rectifying circuit 13, the control circuit 12 and each light source 70 respectively;

a first end of a first inductor 141 is connected with the rectifying circuit 13, a first end of a first resistor 142 and a first end of a first passive capacitor 146 respectively, a second end of the first inductor 141 is connected with a second end of the first resistor 142 and an anode of a first diode 144 respectively, a cathode of the first diode 144 is connected with a first end of a second resistor 143 and a cathode of the second diode 145 respectively, a second end of the second resistor 143 is connected with an anode of the second diode 145 and an anode of a first active capacitor 147 respectively, a cathode of the first active capacitor 147 is connected with a second end of the first passive capacitor 146, an anode of a second active capacitor 148 is connected with a cathode of the first diode 144, a cathode of the second diode 145, a first end of the second resistor 143 and each light source 70, and a cathode of the second active capacitor 148 is connected with the control circuit 12;

the filter circuit 14 is configured to obtain the dc power output by the rectifier circuit 13, filter the dc power, and supply power to any one of the light sources 70 when any one of the light sources 70 is turned on.

In application, the second end of the first non-polar capacitor and the negative electrode of the first polar capacitor are grounded. The filter circuit is used for filtering alternating current ripple components in the direct current output by the rectifying circuit, so that a first direct current is obtained, and the first direct current has smooth direct current voltage and direct current. The first direct current can be used for supplying power to any light source when any light source is started, and can also be used for supplying power to a device, a circuit or a chip of a driving circuit, and the first direct current can be output from the cathode of the second diode. The filter circuit may further include a transformer for adjusting a voltage level of the direct current output from the rectifier circuit.

In one embodiment, filter circuit 14 comprises a sub-filter circuit comprising a first inductor 141 and a first resistor 142;

the sub-filter circuit is used for obtaining the direct current output by the rectifying circuit 13, filtering the direct current, and outputting a second direct current to supply power for a device, a circuit or a chip of the driving circuit 10.

In application, the sub-filter circuit may output a first direct current from the second end of the first inductor, and may be used to supply power to a USB (Universal Serial Bus) Bus, so as to supply power to a device, a circuit or a chip of the power generation apparatus connected to the USB Bus.

As shown in fig. 9, in one embodiment, the driving circuit 10 includes a first power supply circuit 15, the first power supply circuit 15 includes a third diode 151, a fourth diode 152, a fifth diode 153, a second electrodeless capacitor 154, a third active capacitor 155, a fourth active capacitor 156, a first buck chip 157, a zener diode 158, a third resistor 159, a fourth resistor 160, a fifth resistor 161, a field effect transistor 162, a second inductor 163, and a third electrodeless capacitor 164;

the first power supply circuit 15 is respectively connected with the control circuit 12 and the filter circuit 14;

the anode of the third diode 151 is connected to the cathode of the first diode 144, the cathode of the third diode 151 is connected to the second terminal of the first inductor 141, the DRAIN of the first buck chip 157, and the anode of the third active capacitor 155, respectively, the power supply terminal VCC (voltage Current concentrator) of the first buck chip 157 is connected to the output terminal SEL of the first buck chip 157, the anode of the zener diode 158, the second terminal of the fifth resistor 161, the gate of the field effect transistor 162, and the first terminal of the second passive capacitor 154, respectively, the Current sampling terminal cs (Current sampling) of the first buck chip 157 is connected to the first terminal of the third resistor 159, the cathode of the zener diode 158 is connected to the cathode of the fifth diode 153, the anode of the fifth diode 153 is connected to the control circuit 12, the first terminal of the fourth resistor 160, the anode of the fourth active capacitor 156, the second terminal of the second inductor 163, and the first terminal of the third passive capacitor 164, respectively, a first end of the second inductor 163 is connected to a second end of the second electrodeless capacitor 154, a second end of the third resistor 159 and a cathode of the fourth diode 152, an anode of the fourth diode 152 is connected to a second end of the fourth resistor 160, a drain of the field-effect transistor 162 and a cathode of the fourth active capacitor 156, and a source of the field-effect transistor 162 is connected to a first end of the fifth resistor 161 and a cathode of the third active capacitor 155;

the first power supply circuit 15 is configured to obtain the dc power filtered by the filter circuit 14, step down the dc power, and supply power to the control circuit 12.

In application, the first buck chip further comprises a ground end GND, and the ground end GND of the first buck chip is respectively connected with the second end of the second electrodeless capacitor, the first end of the second inductor, the cathode of the fourth diode and the second end of the third resistor; the second end of the third active capacitor, the first end of the fifth resistor and the source electrode of the field effect transistor are grounded. The anode of the third diode is connected with the cathode of the first diode of the filter circuit and is used for acquiring the second direct current output by the filter circuit, the first power supply circuit is used for acquiring the first direct current and the second direct current and stabilizing and reducing voltage, and the anode of the fifth diode can output the third direct current to supply power to the control circuit. The first voltage reduction chip can select any chip capable of realizing the function of the first voltage reduction chip according to the power supply voltage required by the control circuit, for example, a BP2522 chip, and when the BP2522 chip is selected and the output end of the BP2522 chip is connected with the power supply end of the BP, the voltage of the third direct current output by the first power supply circuit is 14V.

In application, the third electrodeless capacitor is used for quickly discharging redundant voltage at the connection part of the first power supply circuit and the control circuit when the first power supply circuit stops supplying power to the control circuit, so that the control circuit stops working quickly and the situation that the redundant voltage cannot be consumed in the circuit to damage components is avoided. The Field Effect Transistor may be a Junction Field Effect Transistor (JFET), or may be a Metal Oxide Semiconductor Field Effect Transistor (MOSFET), and specifically may be an N-channel enhancement MOSFET.

As shown in fig. 10, in one embodiment, the driving circuit 10 includes a second power supply circuit 17, and the second power supply circuit 17 includes a second buck chip 171, a third buck chip 172, a fourth electrodeless capacitor 173, a fifth electrodeless capacitor 174, a fifth active capacitor 175, a sixth diode 176, a seventh diode 177, a third inductor 178, a sixth resistor 179, a seventh resistor 180, and an eighth resistor 181;

the second power supply circuit 17 is respectively connected with the man-machine interaction circuit 11 and the filter circuit 14;

the DRAIN of the second buck chip 171 is connected to the second terminal of the first inductor 141, the power source terminal VCC of the second buck chip 171 is connected to the cathode of the sixth diode 176 and the first terminal of the fourth electrodeless capacitor 173, respectively, the current sampling terminal CS of the second buck chip 171 is connected to the first terminal of the sixth resistor 179 and the first terminal of the seventh resistor 180, respectively, the second terminal of the sixth resistor 179 is connected to the second terminal of the seventh resistor 180, the cathode of the seventh diode 177, and the output terminal SEL of the second buck chip 171 is connected to the second terminal of the fourth electrodeless capacitor 173 and the first terminal of the third inductor 178, respectively, the second terminal of the third inductor 178 is connected to the anode of the sixth diode 176, the first terminal of the eighth resistor 181, the anode of the fifth organic capacitor 175, and the input terminal VIN of the third buck chip 172, respectively, the output terminal of the third buck chip 172 is connected to the first terminal of the fifth electrodeless capacitor VOUT 174 and the power source terminal of the human-computer interaction circuit 11, a second end of the fifth electrodeless capacitor 174 is connected to an anode of the seventh diode 177, a second end of the eighth resistor 181 and a cathode of the fifth active capacitor 175, respectively;

the second power supply circuit 17 is configured to obtain the direct current filtered by the filter circuit 14, step down the direct current, and supply power to the human-computer interaction circuit 11.

In application, the second buck chip further comprises a ground terminal GND, and the ground terminal GND of the second buck chip is respectively connected with the output terminal SEL of the second buck chip, the second terminal of the sixth resistor, the second terminal of the seventh resistor, the cathode of the seventh diode, the second terminal of the fourth electrodeless capacitor and the first terminal of the third inductor; the third buck chip further comprises a ground terminal GND, and the ground terminal GND of the third buck chip is respectively connected with the second end of the fifth electrodeless capacitor, the anode of the seventh diode, the second end of the eighth resistor and the cathode of the fifth polar capacitor.

In application, the second power supply circuit comprises a first sub voltage-reducing circuit and a second sub voltage-reducing circuit, wherein the first sub voltage-reducing circuit comprises a second voltage-reducing chip, a fourth electrodeless capacitor, a fifth electrode capacitor, a sixth diode, a seventh diode, a third inductor, a sixth resistor, a seventh resistor and an eighth resistor, and the second sub voltage-reducing circuit comprises a third voltage-reducing chip and a fifth electrodeless capacitor. The DRAIN of the second buck chip is connected with the negative electrode of the first diode of the filter circuit and is used for acquiring the first direct current output by the filter circuit, the first sub-buck circuit is used for acquiring the first direct current and stabilizing and buck the voltage, and the fourth direct current after the voltage is reduced can be output by the second end of the third inductor. The fourth direct current after voltage reduction by the first voltage reduction sub-circuit can be input to an input end VIN of the third voltage reduction chip, the second voltage reduction sub-circuit is used for acquiring the fourth direct current and reducing the voltage, a fifth direct current after voltage reduction can be output by an output end VOUT of the third voltage reduction chip, and the voltage of the fifth direct current can be 3.3V. The second buck chip and the third buck chip can select any chip capable of realizing the functions of the man-machine interaction circuit according to the power supply voltage required by the man-machine interaction circuit, for example, the second buck chip can be a BP2525F chip, and when the BP2525F chip is selected and the output end of the BP2525F chip is connected with the ground end of the BP, the voltage of the fourth direct current output by the first sub buck circuit is 5V.

As shown in fig. 10, in one embodiment, the first output terminal OUT1 of the control circuit 12 is connected to the blue light source 40, the second output terminal OUT2 is connected to the red light source 20, the third output terminal OUT3 is connected to the green light source 30, the fourth output terminal OUT4 is connected to the first color temperature white light source 50, the fifth output terminal OUT5 is connected to the second color temperature white light source 60, the power terminal VCC is connected to the first power supply circuit 15, and the SDA (Serial Data) pin and the SCL (Serial Clock) pin are connected to the hmc circuit 11;

the power supply terminal VCC of the human-computer interaction circuit 11 is connected with the second power supply circuit 17, the SDA pin is connected with the SDA pin of the control circuit 12, and the SCL pin is connected with the SCL pin of the control circuit 12.

In application, the OUT1 of the control circuit is used for adjusting the luminous flux of the blue light source, the VCC is used for obtaining the power supply voltage to supply power for the control circuit, the SDA pin and the SCL pin are used for communicating with the man-machine interaction circuit, the OUT2 is used for adjusting the luminous flux of the red light source, the OUT3 is used for adjusting the luminous flux of the green light source, the OUT4 is used for adjusting the luminous flux of the first color temperature white light source, and the OUT5 is used for adjusting the luminous flux of the second color temperature white light source. The control circuit may select any device, circuit or chip capable of implementing its function according to actual needs, for example, the BP1658C chip.

In application, the man-machine exchange Circuit may include a radio frequency receiving module, which may be a WiFi module, wherein the SDA pin and the SCL pin may form an I2C (integrated Circuit bus) bus to perform bidirectional data transmission and communication with the control Circuit, and may transmit a wireless control signal to the control Circuit through a serial data line, and may also receive a feedback signal sent by the control Circuit and send the feedback signal to the wireless control device, which may be used to inform a user of the execution of the wireless control signal by the light emitting device, and may determine the timing logic of the radio frequency receiving module and the control Circuit through a serial clock line. The embodiment of the utility model provides a do not do any restriction to the kind and the quantity of the communication module that radio frequency receiving module includes.

The embodiment of the utility model provides a light-emitting device, including drive circuit, ruddiness light source, green glow light source, blue light source, first colour temperature white light source and second colour temperature white light source; the driving circuit is respectively connected with the red light source, the green light source, the blue light source, the first color temperature white light source and the second color temperature white light source to respectively adjust the luminous flux of each light source, the white light in the first color temperature range is emitted through the matching of the first color temperature white light source, the red light source and the green light source, the weight of red light components emitted by the white light source during light emission can be reduced, the usage amount of red fluorescent powder can be reduced, the luminous flux of the white light in the first color temperature range is improved, the luminous flux of the red light source and the green light source is adjusted through the driving circuit, the color coordinate of the white light in the first color temperature range can be adjusted to be close to a black body track, the color rendering index of the white light in the first color temperature range is improved, and the white light in the first color temperature range has higher luminous flux and higher color rendering index.

As shown in fig. 11, a lighting system 2 according to an embodiment of the present invention includes a wireless control device 3 and the lighting apparatus 1 according to the above embodiment.

In application, the function of the lighting system is the same as that of the lighting device in the above embodiments, and will not be described herein.

It will be clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely illustrated, and in practical applications, the above function distribution may be performed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to perform all or part of the above described functions. Each functional module in the embodiments may be integrated into one processing module, or each module may exist alone physically, or two or more modules are integrated into one module, and the integrated module may be implemented in a form of hardware, or in a form of software functional module. In addition, the specific names of the functional modules are only for the convenience of distinguishing from each other, and are not used to limit the protection scope of the present invention. The specific working process of the modules in the system may refer to the corresponding process in the foregoing method embodiment, and is not described herein again.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.

In the embodiments provided in the present invention, it should be understood that the disclosed terminal device and method can be implemented in other manners. For example, the above-described terminal device embodiments are merely illustrative, and for example, the division of the modules is only one logical functional division, and there may be other divisions when actually implementing, for example, a plurality of modules or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.

The above-mentioned embodiments are only used for illustrating the technical solution of the present invention, and not for limiting 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 substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.

Claims

1. A light-emitting device is characterized by comprising a driving circuit, a red light source, a green light source, a blue light source, a first color temperature white light source and a second color temperature white light source;

2. The light emitting apparatus of claim 1, wherein the driving circuit comprises a human-machine interaction circuit and a control circuit;

the man-machine interaction circuit is connected with the control circuit;

3. The lighting apparatus of claim 2, wherein the human-computer interaction circuit comprises a radio frequency receiving module;

the radio frequency receiving module is electrically connected with the control circuit to receive a wireless control signal sent by a user through wireless control equipment, and triggers the control circuit to respectively adjust the luminous flux of each light source according to the wireless control signal.

4. The light-emitting apparatus according to claim 1, wherein the driving circuit includes a rectifying circuit including a transient suppression diode and a rectifying bridge composed of four diodes;

a first input end of the rectifier bridge is respectively connected with a cathode of the transient suppression diode and a first end of a power supply, and a second input end of the rectifier bridge is respectively connected with an anode of the transient suppression diode and a second end of the power supply;

the rectifying circuit is used for being connected with the power supply and rectifying alternating current of the power supply and then outputting direct current.

5. The light emitting device according to claim 1, wherein the driving circuit comprises a filter circuit, the filter circuit comprising a first inductor, a first resistor, a second resistor, a first diode, a second diode, a first passive capacitor, a first active capacitor, and a second active capacitor;

the first end of the first inductor is respectively connected with the rectifying circuit, the first end of the first resistor and the first end of the first electrodeless capacitor, the second end of the first inductor is respectively connected with the second end of the first resistor and the anode of the first diode, the cathode of the first diode is respectively connected with the first end of the second resistor and the cathode of the second diode, the second end of the second resistor is respectively connected with the anode of the second diode and the anode of the first polar capacitor, the cathode of the first active capacitor is connected with the second end of the first passive capacitor, the anode of the second active capacitor is connected with the cathode of the first diode, the cathode of the second diode, the first end of the second resistor and each light source, and the cathode of the second active capacitor is connected with the control circuit;

the filter circuit is used for acquiring the direct current output by the rectifying circuit, filtering the direct current and supplying power to any one light source when the any one light source is started.

6. The light-emitting device according to claim 1, wherein the driving circuit includes a first power supply circuit, and the first power supply circuit includes a third diode, a fourth diode, a fifth diode, a second electrodeless capacitor, a third active capacitor, a fourth active capacitor, a first buck chip, a zener diode, a third resistor, a fourth resistor, a fifth resistor, a field-effect transistor, a second inductor, and a third electrodeless capacitor;

the anode of the third diode is connected with the cathode of the first diode, the cathode of the third diode is respectively connected with the second end of the first inductor, the drain of the first buck chip and the anode of the third polar capacitor, the power supply end of the first buck chip is respectively connected with the output end of the first buck chip, the anode of the zener diode, the second end of the fifth resistor, the grid of the field effect tube and the first end of the second polar capacitor, the current sampling end of the first buck chip is connected with the first end of the third resistor, the cathode of the zener diode is connected with the cathode of the fifth diode, the anode of the fifth diode is respectively connected with the control circuit, the first end of the fourth resistor, the anode of the fourth polar capacitor, the second end of the second inductor and the first end of the third polar capacitor, the first end of the second inductor is connected with the second end of the second electrodeless capacitor, the second end of the third resistor and the cathode of the fourth diode respectively, the anode of the fourth diode is connected with the second end of the fourth resistor, the cathode of the fourth active capacitor and the drain of the field effect transistor respectively, and the source of the field effect transistor is connected with the first end of the fifth resistor and the cathode of the third active capacitor respectively;

7. The light-emitting device according to claim 1, wherein the driving circuit includes a second power supply circuit including a second buck chip, a third buck chip, a fourth electrodeless capacitor, a fifth electrodeless capacitor, a fourth active capacitor, a sixth diode, a seventh diode, a third inductor, a sixth resistor, a seventh resistor, and an eighth resistor;

the drain electrode of the second buck chip is connected with the second end of the first inductor, the power supply end of the second buck chip is respectively connected with the cathode of the sixth diode and the first end of the fourth electrodeless capacitor, the current sampling end of the second buck chip is respectively connected with the first end of the sixth resistor and the first end of the seventh resistor, the second end of the sixth resistor is respectively connected with the second end of the seventh resistor, the cathode of the seventh diode and the output end of the second buck chip, the output end of the second buck chip is respectively connected with the second end of the fourth electrodeless capacitor and the first end of the third inductor, and the second end of the third inductor is respectively connected with the anode of the sixth diode, the first end of the eighth resistor, the anode of the fourth electrodeless capacitor and the input end of the third buck chip, the output end of the third buck chip is respectively connected with the first end of the fifth electrodeless capacitor and the human-computer interaction circuit, and the second end of the fifth electrodeless capacitor is respectively connected with the anode of the seventh diode, the second end of the eighth resistor and the cathode of the fourth active capacitor;

the second power supply circuit is used for obtaining the direct current filtered by the filter circuit, reducing the voltage and supplying power to the man-machine interaction circuit.

8. The lighting apparatus according to claim 1, wherein the first color temperature range is less than or equal to the first color temperature, the second color temperature range is greater than the first color temperature and less than the second color temperature, and the third color temperature range is greater than or equal to the second color temperature.

9. The light-emitting device according to any one of claims 1 to 8, wherein the first color temperature ranges from 2200K to 4000K, and the second color temperature ranges from 4000K to 10000K.

10. A lighting system comprising a wireless control device and a lighting apparatus as claimed in any one of claims 1 to 9.