CN107830427A - A kind of how photochromic LEDbulb lamp - Google Patents
A kind of how photochromic LEDbulb lamp Download PDFInfo
- Publication number
- CN107830427A CN107830427A CN201711062881.XA CN201711062881A CN107830427A CN 107830427 A CN107830427 A CN 107830427A CN 201711062881 A CN201711062881 A CN 201711062881A CN 107830427 A CN107830427 A CN 107830427A
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- China
- Prior art keywords
- signal
- driving power
- drive module
- led
- led drive
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
- F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
- F21K9/238—Arrangement or mounting of circuit elements integrated in the light source
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
- F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
- F21K9/232—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V31/00—Gas-tight or water-tight arrangements
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
The invention discloses a kind of how photochromic LEDbulb lamp,Including plastic casing and lampshade,Lampshade is fixed on the top of plastic casing,The lamp holder for switching on power is provided with below plastic casing,Lampshade is internally provided with LED luminescent screens,Plastic casing is internally provided with the first driving power and the second driving power,LED luminescent screens are provided with the white light lamp bead to emit white light and the gold-tinted lamp bead of Yellow light-emitting low temperature,Gold-tinted lamp bead is arranged on the inner side of white light lamp bead,White light lamp bead is connected with the first driving power,Gold-tinted lamp bead is connected with the second driving power,First driving power and the second driving power include outer cover body,Outer cover body is internally provided with drive circuit board,Drive circuit board is provided with water joint,Water joint passes outer cover body,The O-ring seal for strengthening water resistance is provided with the gap of outer cover body,The appearance of the drive circuit board is coated with silicon gel layer,The appearance embedding of silicon gel layer has heat-conducting silicone grease.
Description
Technical field
The present invention relates to a kind of LEDbulb lamp, particularly a kind of how photochromic LEDbulb lamp.
Background technology
LED is referred to as forth generation light source, has energy-saving and environmental protection, safety, long lifespan, low-power consumption, low-heat, high brightness, anti-
Water, it is miniature, shockproof, it is easy light modulation, light beam concentrate, easy maintenance the features such as, can be widely applied to it is various instruction, display, decoration,
The fields such as backlight, general lighting.LED electric light transformation efficiency is high, and green, long lifespan, operating voltage are low, switch nothing repeatedly
Damage life-span, small volume, heating less, brightness it is high, it is sturdy and durable, be easy to light modulation, color is various, light beam concentrate it is stable, start without prolonging
When.LEDbulb lamp is a kind of LED important application, but current LEDbulb lamp can only generally send a kind of light of color,
The diversity requirement of people can not be met.
The content of the invention
To solve the above problems, it is an object of the invention to provide a kind of the how photochromic of light that can send multiple color
LEDbulb lamp.
Technical scheme is used by the present invention solves its problem：A kind of how photochromic LEDbulb lamp, including plastic casing and
Lampshade, lampshade are fixed on the top of plastic casing, are provided with the lamp holder for switching on power below plastic casing, inside lampshade
LED luminescent screens are provided with, plastic casing is internally provided with the first driving power and the second driving power, and LED luminescent screens are provided with
The white light lamp bead and the gold-tinted lamp bead of Yellow light-emitting low temperature to emit white light, gold-tinted lamp bead are arranged on the inner side of white light lamp bead, white light lamp bead and the
One driving power is connected, and gold-tinted lamp bead is connected with the second driving power, and the first driving power and the second driving power are including outer
Shell body, outer cover body are internally provided with drive circuit board, and drive circuit board is provided with water joint, and water joint passes shell
Body, the O-ring seal for strengthening water resistance is provided with the gap of outer cover body, and the appearance of the drive circuit board applies
Silicon gel layer is covered with, the appearance embedding of silicon gel layer has heat-conducting silicone grease.
Further, outer cover body is provided with the assembling block for being easy to the first driving power and the second driving power to assemble, LED hairs
The annular slab for being easy to LED luminescent screens to install is provided with below tabula rasa, the first driving power and the second driving power may be contained within ring
The lower section of shape plate.The setting of annular slab of the present invention is not only convenient for the installation of LED luminescent screens, and can to the first driving power and
Second driving power carries out spacing.
Further, drive circuit board includes N number of LED drive module of cascade, and the LED drive module includes two paths of signals
Input interface and two paths of signals output interface, the first via letter of first LED drive module in N number of LED drive module
The driving control signal output interface of number input interface connection LED controller, i-th of LED in N number of LED drive module
The first via signal input interface of drive module connects the first signal output interface of the i-th -1 LED drive module, and passes through
First signal is conveyed to i+1 LED drive module by first via signal output interface, in N number of LED drive module
The second road signal input interface of i-th of LED drive module connect the secondary signal output of the i-th -1 LED drive module and connect
Mouthful, and the secondary signal is conveyed to by i+1 LED drive module, LED drive module by second road signal output interface
Connected one to one with lamp bead.First signal is the positive phase signals of data-signal, and the secondary signal is the same number
It is believed that number inversion signal.It is of the invention that the drive control unit element ensured when in the LED drive module of certain one-level is so set
Or during the failure of its peripheral component, the wherein transmission of signal all the way is only influenceed, but another way signal remains to normal transmission
LED drive data, connected rear class LED drive module can be normally received LED drive data, and then to concatenate thereafter
All LEDs can normally controlled display, can improve LED drive data transmission reliability.
Further, LED drive module includes power supply VCC, the drive control unit for handling driving data signal, is used for
The signal filter unit being filtered to signal, the signal amplification unit for being amplified control to drive signal；Power supply VCC
Electrically connected through signal filter unit with drive control unit；Signal amplification unit electrically connects with drive control unit, LED driving moulds
Block also includes isolation resistance R2, and isolation resistance R2 is used for the transmission of auxiliary signal, and isolation resistance R2 both ends connect driving respectively
Control unit, signal amplification unit, signal filter unit include resistance R1, electric capacity C1, resistance R1, electric capacity C1 resistance in series
Electric capacity RC filter circuits, for being powered to power filter, and to drive control unit.Signal amplification unit is inverting amplifier
M1, inverting amplifier M1 are used for the amplification control for realizing drive signal；Inverting amplifier M1 input through isolation resistance R2 with
Drive control unit connection, also it is connected with the first via signal output interface of prime LED drive module；Inverting amplifier M1's is defeated
Go out end to be connected with the second road signal input interface of rear class LED drive module, for exporting secondary signal.Drive control unit is
Transmission control driving chip U1, chip U1 positive signal input part receive the positive phase signals from previous stage LED drive module
Output or the signal of LED controller output, i.e. positive signal output or LED controller from previous stage LED drive module are defeated
The signal gone out passes through isolation resistance R2, and into chip U1 6 pin, the signal connects with signal inversion amplifier M1 input simultaneously
Connect.Resistance R1 and electric capacity C1 in signal filter unit form simple RC electric source filter circuits, are connected with chip U1 8 pin,
Powered to chip U1, while resistance R1 also acts as chip U1 power supply metering functions.
Chip U1 inversion signal input receives the inversion signal from previous stage LED drive module, i.e. inversion signal
It is directly entered chip U1 7 pin.Chip U1 aligns phase input signal, rp input signal is handled, and takes out the LED of itself and drives
Dynamic control signal.Positive signal output part is connected with chip U1 5 pin, and the signal of rear class LED drive module is sent out.Before coming from
The signal of positive phase signals or the LED controller output of one-level LED drive module is connected with inverting amplifier M1 input, through anti-
Phase amplifier M1 is amplified to signal, the anti-phase output end for handling and passing through inverting amplifier M1 gives down inverted signal transmission
The inversion signal input of the LED drive module of one-level.When positive/negative phase signals are all normal, if positive signal level exceeds
Inversion signal level is considered as the input of signal high level, otherwise is considered as the input of signal low level, equivalent to difference
Signal transacting；When inversion signal exception, then if a certain fixed level that positive signal level exceeds inner setting is recognized
To be the input of signal high level, otherwise it is considered as the input of signal low level；When positive abnormal signal, then if anti-phase letter
The a certain fixed level that number level exceeds inner setting is considered as the input of signal high level, otherwise is considered as that signal is low
Level inputs.Enhancing signal antijamming capability is realized by signal inversion and the positive/negative phase signals contrast processing of chip internal, carried
High RST transmission reliability.
The beneficial effects of the invention are as follows：The present invention is a kind of how photochromic LEDbulb lamp, and LED luminescent screens, which are provided with, to emit white light
White light lamp bead and Yellow light-emitting low temperature gold-tinted lamp bead, gold-tinted lamp bead be arranged on white light lamp bead inner side, white light lamp bead with first driving
Power supply is connected, and gold-tinted lamp bead is connected with the second driving power, and it is white that the present invention so setting not only allows LEDbulb lamp to send
Light, gold-tinted, the light of three kinds of different colours of yellowish-white light, meet the different demands of user, and can pass through the first driving power
White light lamp bead, gold-tinted lamp bead are individually controlled with the second driving power, is easy to directly select the coloured light for needing to send, it is more convenient fast
It is prompt；Drive circuit board is coated with silicon gel layer, and silicon gel layer has water-fast, resistance to ozone, weather-resistant, linear shrinkage ratio low, easy
In the perfusion the advantages that, it can keep elastic for a long time in -65~200 DEG C of temperature ranges, and there is excellent electric property and change
Stability is learned, the security performance of driving power device can be improved, epoxy resin cure during because of direct encapsulated epoxy resin can be avoided
Component caused by contraction on driving power circuit board is pulled；Then with heat-conducting silicone grease to the driving electricity coated with silicon gel layer
Road plate is irrigated encapsulation, and flexible solid is formed after heat-conducting silicone grease solidification, can be with shockproof；The water absorption rate of thermal grease layer
It is extremely low, improve the water resistance of driving power device；Moreover, thermal grease layer has good thermal conductivity, will quickly can drive
Heat derives on dynamic circuit board, so as to prevent drive circuit board temperature caused by temperature caused by work does not distribute not go out
Rise, extend the service life of drive circuit board.
Brief description of the drawings
The invention will be further described with example below in conjunction with the accompanying drawings.
Fig. 1 is the explosive view of the present invention；
Fig. 2 is the stereogram of the first driving power；
Fig. 3 is the circuit block diagram of the first driving power；
Fig. 4 is the circuit theory diagrams of LED drive module.
Embodiment
Fig. 1 is the explosive view of the present invention, and Fig. 2 is the stereogram of the first driving power, and Fig. 3 is the circuit of the first driving power
Block diagram, Fig. 4 are the circuit theory diagrams of LED drive module, and the structure and circuit of the first driving power and the second driving power are homogeneous
Together, as shown in Figures 1 to 4, the present invention is a kind of how photochromic LEDbulb lamp, including plastic casing 1 and lampshade 2, lampshade 2 are fixed
In the top of plastic casing 1, the lower section of plastic casing 1 is provided with the lamp holder 3 for switching on power, and lampshade 2 is internally provided with LED
Luminescent screen 4, plastic casing 1 are internally provided with the first driving power 5 and the second driving power 6, and LED luminescent screens 4, which are provided with, to turn white
The white light lamp bead 7 of light and the gold-tinted lamp bead 8 of Yellow light-emitting low temperature, gold-tinted lamp bead 8 are arranged on the inner side of white light lamp bead 7, white light lamp bead 7 and the
One driving power 5 is connected, and gold-tinted lamp bead 8 is connected with the second driving power 6, and the first driving power 5 and the second driving power 6 are wrapped
Outer cover body 9 is included, outer cover body 9 is internally provided with drive circuit board, and drive circuit board is provided with water joint 10, water joint
10 pass outer cover body 9, and the O-ring seal 11 for strengthening water resistance, the driving are provided with the gap of outer cover body 9
The appearance of circuit board is coated with silicon gel layer, and the appearance embedding of silicon gel layer has heat-conducting silicone grease.Outer cover body 9, which is provided with, is easy to
One driving power 5 and the assembling block 12 of the second driving power 6 assembling, the lower section of LED luminescent screens 4, which is provided with, is easy to LED luminescent screens 4 to pacify
The annular slab 13 of dress, the first driving power 5 and the second driving power 6 may be contained within the lower section of annular slab 13.Annular slab of the present invention
13 setting is not only convenient for the installation of LED luminescent screens 4, and the first driving power 5 and the second driving power 6 can be limited
Position.
Preferably, drive circuit board of the invention includes N number of LED drive module 14 of cascade, the LED drive module 14
Including two paths of signals input interface and two paths of signals output interface, first LED drivings in N number of LED drive module 14
The driving control signal output interface of the first via signal input interface connection LED controller of module 14, N number of LED drivings
The first via signal input interface of i-th of LED drive module 14 in module 14 connects the of the i-th -1 LED drive module 14
One signal output interface, and first signal is conveyed to by i+1 LED drive module by first via signal output interface
14, the second road signal input interface of i-th of LED drive module 14 in N number of LED drive module 14 connects the i-th -1
The secondary signal output interface of LED drive module 14, and be conveyed to the secondary signal by second road signal output interface
I+1 LED drive module 14, LED drive module 14 connect one to one with lamp bead.First signal is data-signal
Positive phase signals, the secondary signal are the inversion signal of the same data-signal.Of the invention so set ensures to work as certain one-level
LED drive module 14 in the element of drive control unit 15 or its peripheral component break down when, only influence wherein all the way
The transmission of signal, but another way signal remains to normal transmission LED drive data, connected rear class LED drive module 14
Can be normally received LED drive data, so cause all LEDs for concatenating thereafter can normally controlled display, LED can be improved
The reliability of driving data transmission.The LED controller refers to the external control switch that how photochromic LEDbulb lamp is connected, described
External control switch is manually triggered by user.
Preferably, LED drive module 14 of the invention includes power supply VCC, the driving control for handling driving data signal
Unit 15 processed, the signal filter unit 16 for being filtered to signal, the signal for being amplified control to drive signal
Amplifying unit 17；Power supply VCC electrically connects through signal filter unit 16 with drive control unit 15；Signal amplification unit 17 and driving
Control unit 15 electrically connects, and LED drive module 14 also includes isolation resistance R2, and isolation resistance R2 is used for the transmission of auxiliary signal,
Isolation resistance R2 both ends connect drive control unit 15, signal amplification unit 17 respectively, and signal filter unit 16 includes resistance
R1, electric capacity C1, resistance R1, electric capacity C1 resistance capacitance RC filter circuits in series, for power filter, and give drive control
Unit 15 is powered.Signal amplification unit 17 is inverting amplifier M1, and inverting amplifier M1 is used for the amplification control for realizing drive signal
System；Inverting amplifier M1 input is connected through isolation resistance R2 with drive control unit 15, also with prime LED drive module 14
First via signal output interface connection；Inverting amplifier M1 output end and the second road signal of rear class LED drive module 14
Input interface connects, for exporting secondary signal.Drive control unit 15 controls driving chip U1, chip U1 positive for transmission
Signal input part receives the signal of positive signal output or the LED controller output from previous stage LED drive module 14, that is, comes
The signal exported from the positive signal output or LED controller of previous stage LED drive module 14 passes through isolation resistance R2, into core
Piece U1 6 pin, the signal are connected with signal inversion amplifier M1 input simultaneously.Resistance R1 in signal filter unit 16 and
Electric capacity C1 forms simple RC electric source filter circuits, is connected with chip U1 8 pin, is powered to chip U1, while resistance R1 also rises
To chip U1 power supply metering functions.
Preferably, chip U1 of the invention inversion signal input is received from the anti-of previous stage LED drive module 14
Phase signals, i.e. inversion signal are directly entered chip U1 7 pin.Chip U1 aligns phase input signal, at rp input signal
Reason, takes out the LED driving control signal of itself.Positive signal output part is connected with chip U1 5 pin, and rear class LED is driven mould
The signal of block 14 is sent out.The signal of positive phase signals or LED controller output from previous stage LED drive module 14 is put with anti-phase
Big device M1 input connection, inverted amplifier M1 is amplified to signal, anti-phase handles and by inverting amplifier M1's
Output end is by inversion signal input of the inverted signal transmission to the LED drive module 14 of next stage.When positive/negative phase signals all just
Chang Shi, if it is considered as the input of signal high level that positive signal level, which exceeds inversion signal level, otherwise it is considered as
Signal low level inputs, equivalent to differential signal processing；When inversion signal exception, then if positive signal level exceeds inside
The a certain fixed level of setting is considered as the input of signal high level, otherwise is considered as the input of signal low level；When just
During phase signals exception, then if a certain fixed level that inversion signal level exceeds inner setting is considered as signal high level
Input, on the contrary it is considered as the input of signal low level.By signal inversion and chip internal positive/negative phase signals contrast processing come
Enhancing signal antijamming capability is realized, improves signal transmission reliability.
It is described above, simply presently preferred embodiments of the present invention, the invention is not limited in above-mentioned embodiment, as long as
It reaches the technique effect of the present invention with identical means, should all belong to protection scope of the present invention.
Claims (5)
- A kind of 1. how photochromic LEDbulb lamp, it is characterised in that：Including plastic casing and lampshade, lampshade is fixed on plastic casing Top, the lamp holder for switching on power is provided with below plastic casing, and lampshade is internally provided with LED luminescent screens, plastic casing The first driving power and the second driving power are internally provided with, LED luminescent screens are provided with the white light lamp bead to emit white light and Yellow light-emitting low temperature Gold-tinted lamp bead, gold-tinted lamp bead is arranged on the inner side of white light lamp bead, and white light lamp bead is connected with the first driving power, gold-tinted lamp bead and Second driving power connects, and the first driving power and the second driving power include outer cover body, and outer cover body is internally provided with Drive circuit board, drive circuit board are provided with water joint, and water joint passes outer cover body, set at the gap of outer cover body Have an O-ring seal for strengthening water resistance, the appearance of the drive circuit board is coated with silicon gel layer, silicon gel layer it is outer Table embedding has heat-conducting silicone grease.
- A kind of 2. how photochromic LEDbulb lamp according to claim 1, it is characterised in that：Outer cover body, which is provided with, is easy to One driving power and the assembling block of the second driving power assembling, LED luminescent screens lower section are provided with the ring for being easy to LED luminescent screens to install Shape plate, the first driving power and the second driving power may be contained within the lower section of annular slab.
- 3. according to a kind of any described how photochromic LEDbulb lamp of claim 1 or 2, it is characterised in that：Drive circuit board includes N number of LED drive module of cascade, the LED drive module include two paths of signals input interface and two paths of signals output interface, institute State the driving of the first via signal input interface connection LED controller of first LED drive module in N number of LED drive module Control signal output interface, the first via signal input interface of i-th of LED drive module in N number of LED drive module connect The first signal output interface of the i-th -1 LED drive module is connect, and is believed by first via signal output interface by described first Number it is conveyed to i+1 LED drive module, the second road signal of i-th of LED drive module in N number of LED drive module Input interface connects the secondary signal output interface of the i-th -1 LED drive module, and LED drive module corresponds with lamp bead to be connected Connect.
- A kind of 4. how photochromic LEDbulb lamp according to claim 3, it is characterised in that：First signal is believed for data Number positive phase signals, the secondary signal be the same data-signal inversion signal.
- 5. according to a kind of any described how photochromic LEDbulb lamp of claim 3 or 4, it is characterised in that：LED drive module includes Power supply VCC, the drive control unit for handling driving data signal, for signal is filtered signal filter unit, For being amplified the signal amplification unit of control to drive signal；Power supply VCC is through signal filter unit and drive control unit Electrical connection；Signal amplification unit electrically connects with drive control unit, and LED drive module also includes isolation resistance R2, isolation resistance R2 is used for the transmission of auxiliary signal, and isolation resistance R2 both ends connect drive control unit, signal amplification unit, signal filter respectively Ripple unit includes resistance R1, electric capacity C1, resistance R1, electric capacity C1 resistance capacitance RC filter circuits in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711062881.XA CN107830427A (en) | 2017-11-01 | 2017-11-01 | A kind of how photochromic LEDbulb lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711062881.XA CN107830427A (en) | 2017-11-01 | 2017-11-01 | A kind of how photochromic LEDbulb lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107830427A true CN107830427A (en) | 2018-03-23 |
Family
ID=61651547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711062881.XA Withdrawn CN107830427A (en) | 2017-11-01 | 2017-11-01 | A kind of how photochromic LEDbulb lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107830427A (en) |
-
2017
- 2017-11-01 CN CN201711062881.XA patent/CN107830427A/en not_active Withdrawn
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Application publication date: 20180323 |
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| WW01 | Invention patent application withdrawn after publication |