CN208402161U - A kind of color-temperature regulating LED lamp panel with power failure memory function - Google Patents
A kind of color-temperature regulating LED lamp panel with power failure memory function Download PDFInfo
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- CN208402161U CN208402161U CN201820839307.4U CN201820839307U CN208402161U CN 208402161 U CN208402161 U CN 208402161U CN 201820839307 U CN201820839307 U CN 201820839307U CN 208402161 U CN208402161 U CN 208402161U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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Abstract
The color-temperature regulating LED lamp panel with power failure memory function that the utility model discloses a kind of, including electric power driving module, energy-storage module and control chip with memory function, first switch module also including at least the first lamp group of different-colour and the second lamp group and for driving the first lamp group to run and the second switch module for driving the second lamp group to run, electric power driving module corresponds to the first lamp group by first switch module, second switch module, the second lamp group is powered；Power supply test side of the energy-storage module respectively with electric power driving module, control chip is electrically connected, control chip is able to detect switching signal and the record turn-off time of electric power driving module, and then control the on-off of first switch module, second switch module respectively according to switching signal and turn-off time, the design can be under the premise of by power-off switching action to change colour temperature, also have the function of that power-off is kept, meets the requirement of client.
Description
Technical field
The utility model relates to field of LED drive, especially the LED drive circuit with toning function.
Background technique
The existing color-temperature regulating driving circuit for LED lamp panel, function is relatively simple, is all by infrared induction, microwave
Induction, light sensation etc. are adjusted, and are also had in the past using power-off switching and are adjusted colour temperature, however only merely to powering off simultaneously
The case where behavior reopened is judged, and is modified according to secondary behavior to colour temperature, is really powered off as presence, and
It is not that user wants to switch colour temperature and the operation that powers off and power again, system can not judge, in next power interruption recovering, drive
Dynamic circuit still can be adjusted colour temperature, this does not just meet the original meaning of user.
Utility model content
In order to solve the above technical problems, the purpose of the utility model is to provide a kind of color-temperature regulatings with power failure memory function
LED lamp panel.
The technical solution adopted in the utility model is:
A kind of color-temperature regulating LED lamp panel with power failure memory function, including the power drives being electrically connected with external communication electricity
Module, energy-storage module and the control chip with memory function also include at least the first lamp group and the second lamp of different-colour
Group and the first switch module for driving the first lamp group to run and the second switch module for driving the second lamp group to run,
Electric power driving module is the power supply of the first lamp group by first switch module, and electric power driving module is second by second switch module
Lamp group power supply；
The control chip includes the test side and first defeated including at least being electrically connected with first switch module of powering
Outlet and with second switch module be electrically connected second output terminal, the energy-storage module respectively with electric power driving module, control
The power supply test side of chip is electrically connected, and is control chip power supply to provide supply current/supply voltage in electric power driving module
While be energy-storage module energy storage, and when electric power driving module stops powering energy-storage module provide for electric power driving module it is continuous
Energy electric current/continuous energy voltage, control chip are able to detect switching signal and the turn-off time of electric power driving module, Jin Ergen
Control the on-off of first switch module, second switch module respectively according to switching signal and turn-off time.
It further include for providing the base modules of reference information, the control chip includes sampling end, base modules and control
The sampling end of coremaking piece is electrically connected；Control chip judge by it is continuous can electric current/continuous energy voltage continued power time whether be more than
Reference information.
The energy-storage module includes electrolytic capacitor C4 and diode D2；
The anode of diode D2 is electrically connected with electric power driving module；
Power supply test side of the anode of electrolytic capacitor C4 respectively with the cathode of diode D2, control chip is electrically connected；Electricity
Solve the cathode ground connection of capacitor C4.
The electric power driving module includes the rectification circuit and reduction voltage circuit being successively electrically connected, to external alternating current
It is control chip power supply after rectification, decompression.
Further include high voltage and constant current driving circuit, high voltage and constant current driving circuit respectively with rectification circuit, the first lamp group, the second lamp
Group is electrically connected will power after the Direct current treatment that rectification circuit obtains for the first lamp group and the second lamp group.
First lamp group includes the first LED string and the 2nd LED string, and high voltage and constant current driving circuit includes first high
Driving unit is pressed, the first high drive unit is electrically connected with the first LED string and the 2nd LED string respectively, the first high pressure
The voltage that driving unit can be exported in rectification circuit makes between the first LED string, the 2nd LED string simultaneously when being lower than cutoff value
Connection, and make to connect between the first LED string, the 2nd LED string when the voltage of rectification circuit output is higher than cutoff value.
The first high drive unit includes the first constant current chip, the second constant current chip, diode D4, resistance R20, is
First constant current chip sets the first the reference module of cutoff value, sets the second the reference module of cutoff value for the second constant current chip,
First constant current chip includes input, output end and sampling end, and the second constant current chip includes input, output end and sampling
End；
Anode of the rectification circuit respectively with the input terminal of the first constant current chip, the first LED string is electrically connected；
Anode of the output end of first constant current chip respectively with one end of the first the reference module, the 2nd LED string electrically connects
It connects；
The sampling end of first constant current chip respectively with the other end of the first the reference module, the cathode of diode D4, resistance R20
One end be electrically connected；
The cathode of first LED string respectively with the other end of resistance R20, the anode of diode D4, the second constant current chip
Input terminal is electrically connected；
The one end of the cathode of 2nd LED string respectively with the sampling end of the second constant current chip, the second the reference module electrically connects
It connects；
The other end of second the reference module is electrically connected with the output end of the second constant current chip, first switch module respectively.
Second lamp group includes the 3rd LED string and the 4th LED string, and high voltage and constant current driving circuit includes second high
Driving unit is pressed, the second high drive unit is electrically connected with the 3rd LED string and the 4th LED string respectively, the second high pressure
The voltage that driving unit can be exported in rectification circuit makes between the 3rd LED string, the 4th LED string simultaneously when being lower than cutoff value
Connection, and make to connect between the 3rd LED string, the 4th LED string when the voltage of rectification circuit output is higher than cutoff value.
Further include main line constant current unit, main line constant current unit respectively with rectification circuit, the first high drive unit, second high
Driving unit is pressed to be electrically connected.
Further include switch block, switch block be electrically connected with external communication electricity, electric power driving module respectively to open or
Turn off external communication electricity input power drive module.
The utility model has the beneficial effects that
The utility model LED lamp panel, electric power driving module convert alternating current, thus to control chip and first
Lamp group and the power supply of the second lamp group；
There is provided while supply current/supply voltage is control chip power supply in electric power driving module is energy-storage module storage
Can, and when electric power driving module is closed energy-storage module be electric power driving module provide it is continuous can electric current/continuous can voltage, control core
Piece is able to detect switching signal and the record turn-off time of electric power driving module, can be power supply test side and judges electric current
Or the size of voltage, and then detect whether supply current/supply voltage switches with continuous energy electric current/continuous energy voltage, and handle
Out by continuous energy electric current/continuous energy voltage continued power time；
There is switching action between supply current/supply voltage and continuous energy electric current/continuous energy voltage, and when continued power
Between control chip setting value within, control chip by preset program by change first switch module, second switch
The on-off of module realizes the change of colour temperature, when supply current/supply voltage and it is continuous can electric current/continuous can have switching between voltage
Movement, and the continued power time has exceeded the setting value of control chip, the current first switch module of control chip memory, second
The on off operating mode of switch module does not change the colour temperature of LED lamp panel after power interruption recovering；
The design can also have power-off for a long time to be protected under the premise of by power-off switching action to change colour temperature
The function of holding meets the requirement of client.
Detailed description of the invention
Specific embodiment of the present utility model is described further with reference to the accompanying drawing.
Fig. 1 is the schematic diagram of the utility model LED lamp panel.
Fig. 2 is the circuit diagram of electric power driving module.
Fig. 3 is energy-storage module, the circuit diagram for controlling chip, first switch module, second switch module.
Fig. 4 is the circuit diagram of the first high drive unit, the first lamp group.
Fig. 5 is the circuit diagram of the second high drive unit, the second lamp group.
Fig. 6 is the circuit diagram of main line constant current unit.
Specific embodiment
As shown in figs 1 to 6, the utility model LED lamp panel, including the power drives mould being electrically connected with external communication electricity
Block 1, energy-storage module 2 and the control chip 3 with memory function also include at least the first lamp group 4 and second of different-colour
Lamp group 5 and the first switch module 6 for driving the first lamp group 4 to run and second for driving the second lamp group 5 to run are opened
Module 7 is closed, electric power driving module 1 is the power supply of the first lamp group 4 by first switch module 6, and electric power driving module 1 is opened by second
Module 7 is closed as the power supply of the second lamp group 5；
The control chip 3 is including power supply test side and including at least first be electrically connected with first switch module 6
Output end and with second switch module 7 be electrically connected second output terminal, the energy-storage module 2 respectively with electric power driving module 1,
The power supply test side for controlling chip 3 is electrically connected, and is control core to provide supply current/supply voltage in electric power driving module 1
It is 2 energy storage of energy-storage module while piece 3 is powered, and energy-storage module 2 is power drives when electric power driving module 1 stops powering
Module 1 provides continuous energy electric current/continuous energy voltage, and control chip 3 is able to detect the switching and confession of the power supply of electric power driving module 1
The turn-off time of electricity, and then the turn-off time for the switching and power supply powered according to electric power driving module 1 controls the respectively
The on-off of one switch module 6, second switch module 7.
Further, since continuous energy electric current/continuous energy voltage is compared with supply current/supply voltage, it can gradually reduce, control
Chip 3 is for detecting supply current/supply voltage and continuing energy electric current, and/continuing the switching of energy voltage and by continuous energy electric current/, it is electric to continue energy
The time of continued power and judgement are pressed, and then controls the on-off of first switch module 6, second switch module 7 respectively.
Wherein, producer can set the control program of control chip 3, belong to conventional technology herein, and the design
Control flow can be, setting time value, carry out concluding recovery action in preset time value, control chip 3 is in the following order
Successively switch: one, the conducting of first switch module, the shutdown of second switch module；Two, the shutdown of first switch module, second switch mould
Block conducting；Three, the conducting of first switch module, the conducting of second switch module；So that the first lamp group of different-colour and second
Lamp group is lighted, and the colour temperature of lamp plate is changed, also, only proposes the embodiment to the first lamp group and the second lamp group herein, however root
It can be to three by increasing the output port of control chip, modification control program, increasing switch module according to the concept of the design
A lamp group or the even more lamp group of four lamp groups carry out light modulation driving.
Electric power driving module 1 converts alternating current, thus to control chip 3 and the first lamp group 4 and the second lamp group 5
Power supply, providing while supply current/supply voltage is the control power supply of chip 3 in electric power driving module 1 is that energy-storage module 2 stores up
Can, and in the closing of electric power driving module 1, energy-storage module 2 is that electric power driving module 1 provides continuous energy electric current/continuous energy voltage, is supplied
Electro-detection end judges the size of electric current or voltage, and then detection supply current/supply voltage and continuous energy electric current/continuous energy voltage are
No switching, and handle out by continuous energy electric current/continuous energy voltage continued power time, in supply current/supply voltage and continuous energy
Electric current/continuous can have switching action between voltage, and the continued power time within the setting value of control chip 3, control
Chip 3 realizes the change of colour temperature by changing first switch module 6, the on-off of second switch module 7 by preset program, when
There is switching action between supply current/supply voltage and continuous energy electric current/continuous energy voltage, and the continued power time has exceeded control
The setting value of coremaking piece 3, control chip 3 are remembered the on off operating mode of current first switch module 6, second switch module 7, are being powered off
After recovery, the colour temperature of LED lamp panel is not changed, the design can be under the premise of by power-off switching action to change colour temperature, also
Have the function of powering off for a long time and be kept, meets the requirement of client.
The design further includes switch block 8, and switch block 8 is electrically connected with external communication electricity, electric power driving module 1 respectively
To be switched on or off external communication electricity input power drive module 1, switch block 8 herein, which can be, is arranged in opening on wall
Box is closed, presses to cut off or open external communication electricity to the power supply of electric power driving module 1, so as to adjust colour temperature convenient for user.
The design can also include for providing the base modules 31 of reference information, and control chip 3 includes sampling end, benchmark
The sampling end of module 31 and control chip 3 is electrically connected；Control chip 3 can judge persistently to be supplied by continuous energy electric current/continuous energy voltage
Whether the time of electricity is more than reference information, as shown in figure 3, base modules 31 herein can have voltage-stabiliser tube ZD2 and several electricity
Resistance is constituted, and by reference to voltage, is controlled chip 3 and is compared the signal for test side detection of powering with reference voltage, be converted into the time
Value, you can learn that it is continuous can electric current/continuous can voltage continued power time whether be more than reference information or segment chip reference
Information can be configured by program.
Electric power driving module 1 includes the rectification circuit 11 and reduction voltage circuit 12 being successively electrically connected, to external communication
It powers after electric rectification, decompression for control chip 3.
As shown in Fig. 2, rectification circuit 11 uses bridge rectifier, into reduction voltage circuit 12, when voltage gradually draw high it is certain
When value, metal-oxide-semiconductor Q1 conducting, by capacitor C2 and voltage-stabiliser tube ZD1 voltage regulation filtering, reduction voltage circuit 12 uses the 5th constant current core herein
Piece 121, when voltage is lower than the cutoff value of the 5th constant current chip 121, electric current is flowed through from the 5th constant current chip 121, plays constant current
Effect, when voltage high is more than the cutoff value of the 5th constant current chip 121, the 5th constant current chip 121 ends, and electric current is electric from current limliting
Pass through at resistance R3, voltage is dropped into 12V herein, while further using the triode Q2 and adjustable reference voltage of NPN type
Source Q3, electric current trigger triode Q2 after resistance R3 are connected, provide after current flowing resistance R5 adjustable reference voltage source Q3
Signal, adjustable reference voltage source Q3 play pressure stabilization function, voltage are further dropped to 5.~V or so.
Energy-storage module 2 includes electrolytic capacitor C4 and diode D2；The anode of diode D2 and electric power driving module 1 are electrical
Connection；Power supply test side of the anode of electrolytic capacitor C4 respectively with the cathode of diode D2, control chip 3 is electrically connected；Electrolysis
The cathode of capacitor C4 is grounded, here with the energy storage of electrolytic capacitor C4 and forward conduction, the reversed cut-off of diode D2, so that
Electrolytic capacitor C4 can provide tank voltage/energy storage electric current for control chip 3.
The design further includes high voltage and constant current driving circuit 9, high voltage and constant current driving circuit 9 respectively with rectification circuit 11, first
Lamp group 4, the second lamp group 5 are electrically connected with will be after the Direct current treatment that rectification circuit 11 obtains for the first lamp group 4 and second
Lamp group 5 is powered.
First lamp group 4 includes the first LED string 41 and the 2nd LED string 42, and high voltage and constant current driving circuit 9 includes first
High drive unit 91, the first high drive unit 91 electrically connect with the first LED string 41 and the 2nd LED string 42 respectively
It connects, the voltage that the first high drive unit 91 can be exported in rectification circuit 11 make the first LED string 41, the when being lower than cutoff value
It is in parallel between two LED string 42, and make when the voltage that rectification circuit 11 exports is higher than cutoff value the first LED string 41, the
It connects between two LED string 42.
As shown in figure 4, the first high drive unit 91 includes the first constant current chip 911, the second constant current chip 912, two poles
Pipe D4, resistance R20, the first the reference module 913 of cutoff value is set for the first constant current chip, is the setting cut-off of the first constant current chip
Second the reference module 914 of value, the first constant current chip 911 include input, output end and sampling end, the second constant current chip
912 include input, output end and sampling end, and the first the reference module 913 and the second the reference module 914 herein can be by
Resistance is constituted；
Anode of the rectification circuit 11 respectively with the input terminal of the first constant current chip 911, the first LED string 41 is electrically connected；
The output end of first constant current chip 911 respectively with one end of the first the reference module 913, the 2nd LED string 42 just
Pole is electrically connected；
The sampling end of first constant current chip 911 respectively with the other end of the first the reference module 913, diode D4 cathode,
One end of resistance R20 is electrically connected；
The cathode of first LED string 41 respectively with the other end of resistance R20, the anode of diode D4, the second constant current chip
912 input terminal is electrically connected；
The cathode of 2nd LED string 42 respectively with the sampling end of the second constant current chip 912, the second the reference module 914 one
End is electrically connected；
The other end of second the reference module 914 is electric with the output end of the second constant current chip 912, first switch module 6 respectively
Property connection.
First lamp group 4 and the working principle of the first high drive unit 91 be, when operating current is smaller, the first constant current chip
911 sampling ends detect that the end voltage that the first the reference module 913 provides is less than cutoff value, then the first constant current chip 911 is connected, together
Sample, the sampling end of the second constant current chip 912 detect that the end voltage that the second the reference module 914 provides is less than cutoff value, and second is permanent
Chip 912 is flowed to be connected, then the first LED string 41 is in parallel with the 2nd LED string 42, and when operating current increase, the first constant current core
911 sampling end of piece detects that the end voltage that the first the reference module 913 provides is greater than cutoff value, then the first constant current chip 911 turns off,
Equally, the sampling end of the second constant current chip 912 detect the second the reference module 914 provide end voltage be greater than cutoff value, second
Constant current chip 912 turns off, then the first LED string 41 is connected with the 2nd LED string 42, so that electric current declines, to prevent stopping loss
Bad lamp string.
Second lamp group 5 includes the 3rd LED string 51 and the 4th LED string 52, and high voltage and constant current driving circuit 9 includes second
High drive unit 92, the second high drive unit 92 electrically connect with the 3rd LED string 51 and the 4th LED string 52 respectively
It connects, the voltage that the second high drive unit 92 can be exported in rectification circuit 11 make the 3rd LED string 51, the when being lower than cutoff value
It is in parallel between four LED string 52, and make when the voltage that rectification circuit 11 exports is higher than cutoff value the 3rd LED string 51, the
It connects between four LED string 52.
Similarly, the second lamp group 5 can also be configured with the second high drive unit 92 as the first lamp group 4, tool
For body referring to Fig. 5, working principle is also as above.
Further, main line electric current is excessive in order to prevent, and element is caused to burn out, and the design further includes main line constant current unit
10, main line constant current unit 10 electrically connects with rectification circuit 11, the first high drive unit 91, the second high drive unit 92 respectively
It connects, and main line constant current unit 10 herein can be formed in parallel by several constant current chips, be capable of increasing using several chips
By the rated value of electric current, and ended when electric current is excessive.
The foregoing is merely the preferred embodiments of the utility model, the utility model is not limited to above-mentioned embodiment party
Formula, if with essentially identical means realize the utility model aim technical solution belong to the protection scope of the utility model it
It is interior.
Claims (10)
1. a kind of color-temperature regulating LED lamp panel with power failure memory function, it is characterised in that: including what is be electrically connected with external communication electricity
Electric power driving module, energy-storage module and the control chip with memory function also include at least the first lamp group of different-colour
First switch module with the second lamp group and for driving the first lamp group to run and second for driving the operation of the second lamp group
Switch module, electric power driving module are the power supply of the first lamp group by first switch module, and electric power driving module passes through second switch
Module is the power supply of the second lamp group；
The control chip includes power supply test side and including at least the first output end being electrically connected with first switch module
With the second output terminal being electrically connected with second switch module, the energy-storage module respectively with electric power driving module, control chip
Power supply test side be electrically connected, with electric power driving module provide supply current/supply voltage be control chip power it is same
When be energy-storage module energy storage, and when electric power driving module stops powering energy-storage module be electric power driving module provide it is continuous can be electric
Stream/continuous energy voltage, control chip are able to detect switching signal and the record turn-off time of electric power driving module, Jin Ergen
Control the on-off of first switch module, second switch module respectively according to switching signal and turn-off time.
2. a kind of color-temperature regulating LED lamp panel with power failure memory function according to claim 1, it is characterised in that: further include
For providing the base modules of reference information, the control chip includes sampling end, the sampling end of base modules and control chip
It is electrically connected；Control chip can judge whether by continuous energy electric current/continuous energy voltage continued power time be more than reference information.
3. a kind of color-temperature regulating LED lamp panel with power failure memory function according to claim 1, it is characterised in that: the storage
Energy module includes electrolytic capacitor C4 and diode D2；
The anode of diode D2 is electrically connected with electric power driving module；
Power supply test side of the anode of electrolytic capacitor C4 respectively with the cathode of diode D2, control chip is electrically connected；Electrolysis electricity
Hold the cathode ground connection of C4.
4. a kind of color-temperature regulating LED lamp panel with power failure memory function according to claim 1, it is characterised in that: the electricity
Source drive module includes the rectification circuit and reduction voltage circuit being successively electrically connected, with to being after external AC rectification, decompression
Control chip power supply.
5. a kind of color-temperature regulating LED lamp panel with power failure memory function according to claim 4, it is characterised in that: further include
High voltage and constant current driving circuit, high voltage and constant current driving circuit are electrically connected respectively with rectification circuit, the first lamp group, the second lamp group to incite somebody to action
It powers after the Direct current treatment that rectification circuit obtains for the first lamp group and the second lamp group.
6. a kind of color-temperature regulating LED lamp panel with power failure memory function according to claim 5, it is characterised in that: described
One lamp group includes the first LED string and the 2nd LED string, and high voltage and constant current driving circuit includes the first high drive unit, the
One high drive unit is electrically connected with the first LED string and the 2nd LED string respectively, and the first high drive unit can be
The voltage of rectification circuit output makes parallel connection between the first LED string, the 2nd LED string when being lower than cutoff value, and in rectified current
The voltage of road output makes to connect between the first LED string, the 2nd LED string when being higher than cutoff value.
7. a kind of color-temperature regulating LED lamp panel with power failure memory function according to claim 6, it is characterised in that: described
One high drive unit includes the first constant current chip, the second constant current chip, diode D4, resistance R20, is that the first constant current chip is set
Determine the first the reference module of cutoff value, set the second the reference module of cutoff value, the first constant current chip packet for the second constant current chip
Input, output end and sampling end are included, the second constant current chip includes input, output end and sampling end；
Anode of the rectification circuit respectively with the input terminal of the first constant current chip, the first LED string is electrically connected；
Anode of the output end of first constant current chip respectively with one end of the first the reference module, the 2nd LED string is electrically connected；
The sampling end of first constant current chip respectively with the other end of the first the reference module, the cathode of diode D4, resistance R20 one
End is electrically connected；
The input with the other end of resistance R20, the anode of diode D4, the second constant current chip respectively of the cathode of first LED string
End is electrically connected；
The cathode of 2nd LED string is electrically connected with one end of the sampling end of the second constant current chip, the second the reference module respectively；
The other end of second the reference module is electrically connected with the output end of the second constant current chip, first switch module respectively.
8. a kind of color-temperature regulating LED lamp panel with power failure memory function according to claim 6, it is characterised in that: described
Two lamp groups include the 3rd LED string and the 4th LED string, and high voltage and constant current driving circuit includes the second high drive unit, the
Two high drive units are electrically connected with the 3rd LED string and the 4th LED string respectively, and the second high drive unit can be
The voltage of rectification circuit output makes parallel connection between the 3rd LED string, the 4th LED string when being lower than cutoff value, and in rectified current
The voltage of road output makes to connect between the 3rd LED string, the 4th LED string when being higher than cutoff value.
9. a kind of color-temperature regulating LED lamp panel with power failure memory function according to claim 8, it is characterised in that: further include
Main line constant current unit, main line constant current unit are electrical with rectification circuit, the first high drive unit, the second high drive unit respectively
Connection.
10. a kind of color-temperature regulating LED lamp panel with power failure memory function according to claim 1, it is characterised in that: further include
Switch block, switch block are electrically connected respectively to be switched on or off external communication electricity with external communication electricity, electric power driving module
Input power drive module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820839307.4U CN208402161U (en) | 2018-05-31 | 2018-05-31 | A kind of color-temperature regulating LED lamp panel with power failure memory function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820839307.4U CN208402161U (en) | 2018-05-31 | 2018-05-31 | A kind of color-temperature regulating LED lamp panel with power failure memory function |
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| CN208402161U true CN208402161U (en) | 2019-01-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112040605A (en) * | 2019-06-03 | 2020-12-04 | 东贝光电科技股份有限公司 | High-voltage linear driving and memory dimming LED light-emitting device |
-
2018
- 2018-05-31 CN CN201820839307.4U patent/CN208402161U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112040605A (en) * | 2019-06-03 | 2020-12-04 | 东贝光电科技股份有限公司 | High-voltage linear driving and memory dimming LED light-emitting device |
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