CN208768321U - A kind of dimming device and lamps and lanterns - Google Patents
A kind of dimming device and lamps and lanterns Download PDFInfo
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- CN208768321U CN208768321U CN201821226888.0U CN201821226888U CN208768321U CN 208768321 U CN208768321 U CN 208768321U CN 201821226888 U CN201821226888 U CN 201821226888U CN 208768321 U CN208768321 U CN 208768321U
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- selector
- selection module
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- gear
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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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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model relates to a kind of dimming device and lamps and lanterns, the dimming devices, comprising: the selector of switching gear or shaping modes；Selection light-modulating mode and the mode selection module for being sent to the selector；It receives external gear selection order and the order is sent to the gear selection module of the selector；Adjust the light source driver module of lamp brightness；The light source driver module, selector, mode selection module are sequentially connected, and the gear selection module is connect with the selector.The utility model passes through simulation light modulation+digital dimming mixing dimming mode, sampling simulation light modulation during unlatching is slowly increased brightness, digital dimming is switched to after the completion, can effectively avoid causing driving circuit the case where impacting and light source is avoided to have flashing, illumination is reliable and stable.
Description
Technical field
The utility model belongs to technical field of lamps more particularly to a kind of dimming device and lamps and lanterns.
Background technique
LED is the abbreviation of English Light-Emitting Diode, also referred to as light emitting diode, and light emitting diode is a kind of
The semiconductor electronic component that luminous energy can be converted electrical energy into since LED is the semiconductor devices of characteristic sensitivity, and has negative temperature
Characteristic, thus need to carry out it steady-working state and protection in application process, for example, use LED as display or other
When lighting apparatus or backlight, need to carry out constant current driving to LED.
It is existing that LED light modulation, there are two types of thinkings at present: first is that linear regulation LED current (i.e. simulation dims), second is that making
It is to belong to number with the average value that switching circuit is worked with frequency sufficiently high for eye recognition power to change light output
Word dims (i.e. PWM light modulation).
And in the prior art, in LED dimming process, driving circuit is caused to rush when light source is opened
It hits, needs to be slowly increased the brightness of light source, light source has flashing when sampling single PWM light modulation；And single simulation light modulation
There are light source color temperatures and aobvious the case where referring to change for side, experience to user's bring poor.
Utility model content
The utility model provides a kind of dimming device and lamps and lanterns, it is intended to solve the stabilization LED light source when carrying out LED light modulation
Problem.
The utility model is realized in this way a kind of dimming device, comprising:
Switch the selector of gear or shaping modes；
Selection light-modulating mode and the mode selection module for being sent to the selector；
It receives external gear selection order and the order is sent to the gear selection module of the selector；
Adjust the light source driver module of lamp brightness；
The light source driver module, selector, mode selection module are sequentially connected, the gear selection module and the choosing
Select device connection.
Further, the mode selection module includes MCU.
Further, the selector is multiple selector.
Further, the light source driver module includes constant pressure and flow controller, the constant pressure and flow controller with it is described
Selector is connected.
Further, the light source driver module further include:
The first electricity between the signal output end of the selector and the signal input part of constant pressure and flow controller is set
Resistance；
Grid connects the metal-oxide-semiconductor of the output end of constant pressure and flow controller, source electrode ground connection；
Anode connects the diode of the metal-oxide-semiconductor drain electrode；
One end connects the diode cathode, the first capacitor of other end ground connection；
One end connects the output end of the constant pressure and flow controller, the second resistance of other end ground connection；
First end connects the inductance of the metal-oxide-semiconductor drain electrode；And
Second capacitor and 3rd resistor；
The second end of the inductance is connected to electricity by 3rd resistor by the second capacity earth, the second end of the inductance
Press input terminal.
Further, dimming device further includes providing the voltage source module of electric energy for each power unit.
Also a kind of lamps and lanterns of the utility model, which is characterized in that the lamps and lanterns include above-mentioned dimming device.
By adopting the above technical scheme, the utility model at least has the advantages that the utility model is selected by mode
It selects module selection light-modulating mode and is sent to selector, then gear selection module should after receiving external gear selection order
Order is sent to selector, and selector selects corresponding gear according to the information that mode selection module and gear selection module are sent
And mode, gear that light source driver module is selected according to selector and mode adjust the brightness of lamps and lanterns, pass through simulation light modulation+number
The mixing dimming mode of word light modulation, sampling simulation light modulation, switches to number after the completion during unlatching is slowly increased brightness
Light modulation, can effectively avoid causing driving circuit the case where impacting and light source is avoided to have flashing, illumination is reliable and stable.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of novel dimming device one embodiment of this practical offer；
Fig. 2 is the structural schematic diagram of another embodiment of the dimming device of this practical offer；
Fig. 3 is the electrical block diagram of the utility model dimming device one embodiment.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Term " first ", " second " be used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or
Implicitly indicate the quantity of indicated technical characteristic." first " is defined as a result, the feature of " second " can be expressed or imply
Ground includes one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
Selector, gear selection module, mode selection module are set in the utility model dimming device, and selector can pass through
Gear selection module acquires the external command of user's input, and the light modulation mould of user's selection is obtained by mode selection module
Formula is to obtain the brightness for driving light source driver module to adjust lamps and lanterns after gear, using the mixing light modulation side of simulation light modulation+PWM light modulation
Formula can effectively improve the stability of lamps and lanterns illumination.
Embodiment one
As shown in Figure 1 to Figure 3, the utility model provides a kind of dimming device, comprising: switching gear or shaping modes
Selector 200；Selection light-modulating mode and the mode selection module 300 for being sent to the selector 200；Receive external gear selection
Order and be sent to the order gear selection module 400 of the selector 200；The light source for adjusting lamp brightness drives mould
Block 100；The light source driver module 100, selector 200, mode selection module 300 are sequentially connected, the gear selection module
400 connect with the selector 200.Mode selection module 300 is for selecting light-modulating mode and being sent to selector 200, gear
For selecting module 400 for receiving external gear selection order and sending a command to selector 200, selector 200 is used for basis
The information that mode selection module 300 and gear selection module 400 are sent, selects matched gear, light source driver module 100 is used for
According to the brightness of gear and mode tuning lamps and lanterns that selector 200 selects.
When implementing, mode selection module 300 is sent to selector 200 after selecting light-modulating mode, meanwhile, selector 200
The external gear selection order of user's input is obtained by gear selection module 400, such as gear selection module 400 uses knob
Switch, rotary switch include 1 to 4 four gear, when user selects the knob of rotary switch to select 1 gear, selector 200
The 1st gear information of the input of gear selection module 400 is received, then selector 200 according to the light-modulating mode and has gear
The external command of information selects corresponding gear, and last light source driver module 100 is adjusted according to the gear that selector 200 selects
The brightness of lamps and lanterns, to realize simulation light modulation+digital dimming mixing dimming function.
The present embodiment selects light-modulating mode by mode selection module 300 and is sent to selector 200, then gear selection
The external command is sent to selector 200 after receiving external gear selection order by module 400, and selector 200 is according to mode
The corresponding gear of information selection and mode that selecting module 300 and gear selection module 400 are sent, light source driver module 100
The brightness that lamps and lanterns are adjusted according to the gear and mode of the selection of selector 200, passes through and simulates light modulation+digital dimming mixing light modulation side
Formula, sampling simulation light modulation, switches to digital dimming after the completion, can effectively avoid to drive during unlatching is slowly increased brightness
Dynamic circuit causes the case where impacting and light source is avoided to have flashing, and illumination is reliable and stable.
Embodiment two
As shown in figure 3, mode selection module 300 includes MCU；Micro-control unit (Microcontroller Unit；Referred to as
MCU), also known as one chip microcomputer (Single Chip Microcomputer) or single-chip microcontroller, are central processing unit
(Central Process Unit；CPU frequency) and specification do appropriate reduction, and by memory (memory), counter
(Timer), the perimeter interfaces such as USB, A/D conversion, UART, PLC, DMA or even LCD driving circuit are all integrated on a single chip,
The computer of chip-scale is formed, for the equipment that various combination control is done in different applications, needs can accurately be obtained by MCU
Light-modulating mode and be sent to selector 200, improve the utility model dimming device light modulation accuracy.
Embodiment three
Selector 200 is multiple selector U1；Multiple selector is the nickname of data selector.It was transmitted in multichannel data
Cheng Zhong, the circuit that will wherein arbitrarily can be elected all the way as needed, is called data selector, also referred to as multiple selector or more
Way switch, when implementing, selector 200 can be designed to the existing single-chip microcontroller with multi-path choice function, such as model
The single-chip microcontroller of IC_4054 alternatively device 200, can effectively provide circuit operational efficiency.
Example IV
Light source driver module 100 includes constant pressure and flow controller U2, and constant pressure and flow controller U2 is connected with selector 200.
Constant pressure and flow controller U2 is no matter one kind loads with how input terminal changes (in its setting range), the voltage and electricity of output
Stream is all invariable component, so that stable voltage signal, current signal to LED light string led1 are exported, so that LED light
String led1 can be in stable working condition；When implementing, the multiple LED lamp beads of LED light string led1 are sequentially connected in series,
The input terminal of middle LED light string led1 is the anode for forming first LED lamp bead of LED light string led1, the output of LED light string led1
End is the cathode of the last one LED lamp bead of composition LED light string led1；Mode selection module 300 receives reference voltage source input
For simulate the voltage signal of light modulation, wherein reference voltage source can be using 7805 or TL431 etc., certainly, which believes
It number can also be generated by single-chip microcontroller；Pwm signal for PWM light modulation can have amplifier, trigger or single-chip microcontroller to generate,
In, amplifier can perhaps the trigger such as LM324 can be using LM555 or NA556 etc. using LM358；And gear selection module
400 can be made of key switch, toggle switch or rotary switch etc.；Constant pressure and flow controller U2 can using AP3041,
AL3065, LM3404, LM3492 or OB3370 etc..
Embodiment five
Light source driver module further include: the signal of signal output end and constant pressure and flow controller U2 that selector is arranged in is defeated
Enter the first resistor R1 between end；Grid connects the metal-oxide-semiconductor of the output end of constant pressure and flow controller U2, source electrode ground connection；Anode is even
Meet the diode D1 of metal-oxide-semiconductor drain electrode；One end connects diode D1 cathode, the first capacitor C1 of other end ground connection；One end connection is permanent
Press the output end of constant-current controller U2, the second resistance R2 of other end ground connection；First end connects the inductance of metal-oxide-semiconductor drain electrode Q1；And
Second capacitor C2 and 3rd resistor R3；The second end of inductance L1 is grounded by the second capacitor C2, and the second end of inductance L1 passes through the
Three resistance R3 are connected to voltage input end Vin.When it is implemented, first resistor R1 is connected to the signal output end of selector 200
Between the signal input part of constant pressure and flow controller U2, constant pressure and flow controller U2 further includes output end and input terminal, constant pressure
The output end of constant-current controller is connected to the grid of metal-oxide-semiconductor Q1, the source electrode ground connection of metal-oxide-semiconductor Q1, and the drain electrode of metal-oxide-semiconductor Q1 passes through forward direction
The diode D1 of conducting is connected to the first end of first capacitor C1, wherein the drain electrode of metal-oxide-semiconductor Q1 is connected to the sun of diode D1
Pole, the cathode of diode D1 are connected to the first end of first capacitor C1, and the second end of first capacitor C1 is grounded, first capacitor C1's
First end is additionally coupled to the input terminal of LED light string led1, and the output end of LED light string led1 is connected to the defeated of constant pressure and flow controller
Enter end, the output end of LED light string led1 also passes through second resistance R2 and be grounded, and the drain electrode of metal-oxide-semiconductor Q1 is additionally coupled to the of inductance L1
The second end of one end, inductance L1 is grounded by the second capacitor C2, and the second end of inductance L1 is connected to voltage by 3rd resistor R3
Input terminal Vin.
Embodiment six
Dimming device further includes that the voltage source module 500 of electric energy is provided for each power unit.Voltage source module 500 can be adopted
With lamp interior battery or external power supply for outputing voltage signal to voltage output end VCC, make for example, by using utility grid
It include the transforming circuit for being boosted or being depressured line voltage for voltage source module 500, in voltage source module 500,
To which line voltage to be adjusted to the voltage adaptation as the utility model dimming device.
In one embodiment, gear selection module can also use multiple selector, to switch gear, such as multichannel choosing
Device CD4051 is selected, it be selection signal and 1 is disable signal, 8 kinds of states pair of 3 selection signals that multiple selector CD4051, which has 3,
Answer 8 interfaces, that is, 8 select 1 as output, such as CH0 mouthfuls of signal can be chosen as exporting when ABC is 000, and when ABC is
CH1 mouthfuls of signal can be chosen as exporting when 001, and so on, to realize gear switch function；Gear selection module 400 is just
It is dim signal needed for generating light source driver module 100, can be voltage signal can also be digital signal, light source driver module
100 dimming mode is also to have this 2 kinds of simulation light modulation and digital dimming；Simulation light modulation is exactly to be adjusted according to the height of voltage signal
The luminous flux of whole light source output；Digital dimming be exactly adjusted according to the duty ratio of digital signal light source output and stopping when
Between, it equally can also adjust the luminous flux of light source output.
Embodiment seven
The utility model also provides a kind of lamps and lanterns, and lamps and lanterns include such as above-mentioned dimming device.Wherein, the luminous component of lamps and lanterns
It is exactly above-mentioned LED light string led1, the mode selection module 300 in dimming device selects light-modulating mode and is sent to selector
200, then the external command is sent to selector 200, selector 200 after receiving external command by gear selection module 400
Corresponding gear, light source driver module 100 are selected according to the information that mode selection module 300 and gear selection module 400 are sent
The brightness that lamps and lanterns are adjusted according to the gear that selector 200 selects, by using simulation light modulation+digital dimming mixing light modulation side
Formula, sampling simulation light modulation, switches to digital dimming after the completion, can effectively avoid to drive during unlatching is slowly increased brightness
Dynamic circuit causes the case where impacting and light source is avoided to have flashing, and illumination is reliable and stable.
The present embodiment selects light-modulating mode by mode selection module and is sent to selector, and then gear selection module exists
The external command is sent to selector after the external gear selection order of reception, selector is selected according to mode selection module and gear
The information for selecting module transmission selects corresponding gear and mode, gear that light source driver module is selected according to selector and mode come
The brightness for adjusting lamps and lanterns, by simulating light modulation+digital dimming mixing dimming mode, during unlatching is slowly increased brightness
Sampling simulation light modulation, switches to digital dimming after the completion, can effectively avoid that light source meeting is caused to impact and avoided to driving circuit
There is the case where flashing, illumination is reliable and stable.Line voltage is adjusted to dim as the utility model by voltage source module 500 and is filled
The voltage adaptation set.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (7)
1. a kind of dimming device characterized by comprising
Switch the selector of gear or shaping modes；
Selection light-modulating mode and the mode selection module for being sent to the selector；
It receives external gear selection order and the order is sent to the gear selection module of the selector；
Adjust the light source driver module of lamp brightness；
The light source driver module, selector, mode selection module are sequentially connected, the gear selection module and the selector
Connection.
2. dimming device according to claim 1, which is characterized in that the mode selection module includes MCU.
3. dimming device according to claim 1, which is characterized in that the selector is multiple selector.
4. dimming device according to claim 1, which is characterized in that the light source driver module includes constant pressure and flow control
Device, the constant pressure and flow controller are connected with the selector.
5. dimming device according to claim 4, which is characterized in that the light source driver module further include:
First resistor between the signal output end of the selector and the signal input part of constant pressure and flow controller is set；
Grid connects the metal-oxide-semiconductor of the output end of the constant pressure and flow controller, source electrode ground connection；
Anode connects the diode of the metal-oxide-semiconductor drain electrode；
One end connects the diode cathode, the first capacitor of other end ground connection；
One end connects the output end of the constant pressure and flow controller, the second resistance of other end ground connection；
First end connects the inductance of the metal-oxide-semiconductor drain electrode；And
Second capacitor and 3rd resistor；
For the second end of the inductance by the second capacity earth, it is defeated that the second end of the inductance by 3rd resistor is connected to voltage
Enter end.
6. dimming device according to any one of claims 1 to 5, which is characterized in that further include being provided for each power unit
The voltage source module of electric energy.
7. a kind of lamps and lanterns, which is characterized in that the lamps and lanterns include such as dimming device described in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821226888.0U CN208768321U (en) | 2018-07-31 | 2018-07-31 | A kind of dimming device and lamps and lanterns |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821226888.0U CN208768321U (en) | 2018-07-31 | 2018-07-31 | A kind of dimming device and lamps and lanterns |
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| Publication Number | Publication Date |
|---|---|
| CN208768321U true CN208768321U (en) | 2019-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821226888.0U Active CN208768321U (en) | 2018-07-31 | 2018-07-31 | A kind of dimming device and lamps and lanterns |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114071837A (en) * | 2020-08-07 | 2022-02-18 | 全汉企业股份有限公司 | Lighting power supply circuit with dimming function and control method thereof |
-
2018
- 2018-07-31 CN CN201821226888.0U patent/CN208768321U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114071837A (en) * | 2020-08-07 | 2022-02-18 | 全汉企业股份有限公司 | Lighting power supply circuit with dimming function and control method thereof |
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