CN108617049A - A kind of Dimmable LED indoor lamp illuminator - Google Patents
A kind of Dimmable LED indoor lamp illuminator Download PDFInfo
- Publication number
- CN108617049A CN108617049A CN201611271651.XA CN201611271651A CN108617049A CN 108617049 A CN108617049 A CN 108617049A CN 201611271651 A CN201611271651 A CN 201611271651A CN 108617049 A CN108617049 A CN 108617049A
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- led
- module
- light
- board
- adjusting module
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- 238000004088 simulation Methods 0.000 claims abstract description 15
- 230000003287 optical effect Effects 0.000 claims description 3
- 230000033228 biological regulation Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 241001465382 Physalis alkekengi Species 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000004224 protection Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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]
- H05B45/10—Controlling the intensity of the light
-
- 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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
Abstract
The invention belongs to LED automobile lamp technical fields, are a kind of Dimmable LED indoor lamp illuminator, including LED module, IC control modules, light-adjusting module, which is applied to automobile room lamp, can be with linear regulation brightness；In circuit design, LED current is controlled using the switch constant current chip with simulation dimming function, using the constant light-adjusting module reference voltage of three terminal regulator, light-adjusting module output voltage is adjusted in such a way that linear sliding potentiometer and fixed value resistance divide reference voltage, simulation dim signal is generated, the LED luminance of LED module is controlled by the way of by light-adjusting module simulation dim signal access IC control module dimming interfaces；In PCB construction design, wiring board includes LED board and dimmer board, and LED module, IC control modules are arranged on LED board, and light-adjusting module is arranged on dimmer board, and dimmer board is attached by harness with LED board and is combined into whole lamp.
Description
Technical field
The invention belongs to LED automobile lamp technical fields, in particular to a kind of Dimmable LED indoor lamp illuminator.
Background technology
With the gradually decline of the continuous development of LED manufacture technology and maturation and production cost, LED light source has been opened
Beginning is widely used in the fields such as auto lamp, special lighting lamps and lanterns, public illumination, has huge development potentiality, it is considered to be 21
Century light source most with prospects.
LED is highly reliable, service life is long, excitation purity is high, fast response time, it is small convenient for design the advantages that, make it
In the car more and more common application is obtained in terms of outer illumination.Into 21st century, LED car lamp has become automobile trend
New lover is widely used on the lamps and lanterns such as signal lamp, indoor lamp.In addition in recent years, people get over the energy-efficient cry of automobile environment-protection
Come higher, and the advantages of LED energy conservation and environmental protections also results in the extensive concern of people, this is carried for applications of the LED on automobile lamp
Great space is supplied.
LED indoor lamp on the market is mostly single brightness at present, can only be switched on and off.Tunable optical according to the present invention
LED indoor lamp illuminator is applied to automobile room lamp, can be with linear regulation brightness.
Invention content
The present invention is directed to the applicable cases of Dimmable LED indoor lamp illuminator, devises one kind and being applied to automobile room lamp,
It can be with the Dimmable LED indoor lamp illuminator of linear regulation brightness.
The technical solution adopted by the present invention is as follows：A kind of Dimmable LED indoor lamp illuminator, including LED module, IC control
Module, light-adjusting module, which is characterized in that the Dimmable LED indoor lamp illuminator uses the switch with simulation dimming function
Constant current chip controls LED current；Using the constant light-adjusting module reference voltage of three terminal regulator；Using linear sliding potentiometer and definite value
The mode that resistance divides reference voltage adjusts light-adjusting module output voltage, generates simulation dim signal；Using by light-adjusting module
The mode of simulation dim signal access IC control module dimming interfaces controls the LED luminance of LED module；Wiring board includes LED board
And dimmer board.LED current is controlled using switch constant current chips of the PT4115 with simulation dimming function, 3 tunnel parallel connections of LED are per 3, road
Series connection.Use the three terminal regulator that+5V is exported that the unstable input voltage of light-adjusting module is constant for+5V.It is straight sliding using adjusting
The mode that Middle Eocene device resistance value and fixed value resistance resistance value ratio divide reference voltage adjusts the output voltage of light-adjusting module, generates
0.3V-2.5V simulates dim signal.It is connect using by light-adjusting module 0.3V-2.5V simulation dim signal access IC control modules light modulations
The mode of mouth adjusts the LED current size of simulation dim signal size control LED module to control LED luminance.LED module, IC
Control module is arranged on LED board, and light-adjusting module is arranged on dimmer board, and dimmer board is attached group with LED board by harness
Synthesize whole lamp.
The beneficial effects of the invention are as follows：The PT4115 switch constant current chips of use use few peripheral components, Neng Goubao
The transfer efficiency for demonstrate,proving power supply is more than 95%, reduces power consumption, simultaneous with simulation dimming function, can be dimmed according to analog signal.
By the three terminal regulator of addition+5V output by unstable input voltage it is constant be+5V, have constant ginseng when rear end being made to divide
Examine voltage.It is adjusted by using the mode that linear sliding potentiometer resistance value and fixed value resistance resistance value ratio divide reference voltage is adjusted
The output voltage of light-adjusting module generates 0.3V-2.5V and simulates dim signal, and the component used is few, meets in small space and is distributed
The requirement of device.By linear regulation simulate dim signal size, can with the LED current size of Linear Control LED module, to
Linear Control LED luminance.LED module, IC control modules are arranged on LED board, and light-adjusting module is arranged on dimmer board, dimmer board
It is attached by harness with LED board and is combined into whole lamp, ensure whole lamp assembly demand, while increasing reliability and craftsmanship.
Description of the drawings
Fig. 1 is a kind of Dimmable LED indoor lamp illuminator LED board circuit diagram of the present invention；
Fig. 2 is a kind of Dimmable LED indoor lamp illuminator dimmer board circuit diagram of the present invention；
Fig. 3 is a kind of Dimmable LED indoor lamp illuminator LED board PCB design figure of the present invention；
Fig. 4 is a kind of Dimmable LED indoor lamp illuminator dimmer board PCB design figure of the present invention.
Specific implementation mode
Description of specific embodiments of the present invention from circuit theory and PCB design below in conjunction with the accompanying drawings.
The LED board schematic diagram of the present invention is as shown in Figure 1：Rectifications of the diode D1 for circuit is played due to maloperation simultaneously
Protective effect after positive and negative anodes reversal connection caused by and will not damage device after ensureing reversal connection.Capacitance C1, C2 for filter and
Unlatching, shutdown and input voltage work as a buffer when floating.Switch constant current chip U1, resistance R1, diode D2 and inductance L1 are
Control section, for setting the electric current for flowing through LED, 3 feet of U1 are dim signal input terminal, can access PWM dim signals or
Person simulates dim signal, to LED current into horizontal-linearity control.LED1-LED9 is LED section, totally 9 LED, and 3 tunnels LED are in parallel
Per the series connection of 3, road.
The dimmer board schematic diagram of the present invention is as shown in Figure 2：Rectifications of the diode D3 for circuit is played simultaneously due to accidentally grasping
Make and caused by protective effect after positive and negative anodes reversal connection, will not damage device after ensureing reversal connection.Capacitance C3 for filter and
Unlatching, shutdown and input voltage work as a buffer when floating.Three terminal regulator U2, diode D4 and capacitance C4 are constant pressure portions,
For unstable input voltage is constant for+5V.Fixed value resistance R2, fixed value resistance R3 and linear sliding potentiometer R4 are pressure-regulating portions
Point, the right+5V reference voltages partial pressure of ratio by calculating R2, R3, R4 resistance value makes output end output voltage 0.3V- when sliding R4
2.5V adjustable.
The LED board PCB design of the present invention is as shown in Figure 3：Wiring board use surface-mounted device single side fabric swatch, diode, capacitance,
Control section and LED are all arranged in the fronts PCB.Also there are " DIM " light modulation inputs to connect in addition to "+", "-" driving interface for input terminal
Mouthful, PWM dim signals or simulation dim signal can be accessed at any time, to LED current into horizontal-linearity control, when being not added with any tune
It, can be with single brightness normal use when optical signal.
The dimmer board PCB design of the present invention is as shown in Figure 4：Wiring board is loaded in mixture using patch is inserted, and inserts device direct slide current potential
Device is placed on the back sides PCB, and all surface-mounted devices of other devices are arranged in the fronts PCB, and the later stage is facilitated to test and repair analysis.
There are welding junction, convenient are attached by harness with LED board to be combined into whole lamp for input terminal, ensures whole lamp assembly demand, together
Shi Zengjia reliabilities and craftsmanship.
Claims (6)
1. a kind of Dimmable LED indoor lamp illuminator, including LED module, IC control modules, light-adjusting module, which is characterized in that institute
The Dimmable LED indoor lamp illuminator stated uses the switch constant current chip with simulation dimming function to control LED current；Using three ends
The constant light-adjusting module reference voltage of voltage-stablizer；It is adjusted in such a way that linear sliding potentiometer divides reference voltage with fixed value resistance
Light-adjusting module output voltage generates simulation dim signal；IC control module tune is accessed using by light-adjusting module simulation dim signal
The mode of optical interface controls the LED luminance of LED module；Wiring board includes LED board and dimmer board.
2. a kind of Dimmable LED indoor lamp illuminator according to claim 1, which is characterized in that using PT4115 band moulds
The switch constant current chip of quasi- dimming function controls LED current, and 3 tunnel parallel connections of LED are per the series connection of 3, road.
3. a kind of Dimmable LED indoor lamp illuminator according to claim 1, which is characterized in that the three of use+5V outputs
Hold voltage-stablizer that the unstable input voltage of light-adjusting module is constant for+5V.
4. a kind of Dimmable LED indoor lamp illuminator according to claim 1, which is characterized in that using adjusting direct slide
The mode that potentiometer resistance and fixed value resistance resistance value ratio divide reference voltage adjusts the output voltage of light-adjusting module, generates
0.3V-2.5V simulates dim signal.
5. a kind of Dimmable LED indoor lamp illuminator according to claim 1, which is characterized in that use light-adjusting module
0.3V-2.5V simulates the mode of dim signal access IC control module dimming interfaces, adjusts simulation dim signal size and controls LED
The LED current size of module is to control LED luminance.
6. a kind of Dimmable LED indoor lamp illuminator according to claim 1, which is characterized in that LED module, IC controls
On LED board, light-adjusting module is arranged on dimmer board module arrangement, and dimmer board is attached by harness with LED board and is combined into
Whole lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611271651.XA CN108617049A (en) | 2016-12-09 | 2016-12-09 | A kind of Dimmable LED indoor lamp illuminator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611271651.XA CN108617049A (en) | 2016-12-09 | 2016-12-09 | A kind of Dimmable LED indoor lamp illuminator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108617049A true CN108617049A (en) | 2018-10-02 |
Family
ID=63658138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611271651.XA Withdrawn CN108617049A (en) | 2016-12-09 | 2016-12-09 | A kind of Dimmable LED indoor lamp illuminator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108617049A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102665355A (en) * | 2012-05-17 | 2012-09-12 | 上海大陆信息服务有限公司 | LED (Light Emitting Diode) dimming light source installed on wall space |
| CN102695319A (en) * | 2011-03-23 | 2012-09-26 | 海洋王照明科技股份有限公司 | LED stepless light regulating circuit |
| CN203279314U (en) * | 2013-06-19 | 2013-11-06 | 曾金星 | LED brightness adjusting circuit |
| CN104780683A (en) * | 2015-04-16 | 2015-07-15 | 长兴泛亚照明电器有限公司 | Dimming circuit of LED constant-current driver |
| CN105592595A (en) * | 2016-03-08 | 2016-05-18 | 深圳市华星光电技术有限公司 | Backlight modulation circuit and liquid crystal display device |
| CN206302610U (en) * | 2016-12-09 | 2017-07-04 | 天津工大海宇照明部品有限公司 | A kind of Dimmable LED indoor lamp illuminator |
-
2016
- 2016-12-09 CN CN201611271651.XA patent/CN108617049A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102695319A (en) * | 2011-03-23 | 2012-09-26 | 海洋王照明科技股份有限公司 | LED stepless light regulating circuit |
| CN102665355A (en) * | 2012-05-17 | 2012-09-12 | 上海大陆信息服务有限公司 | LED (Light Emitting Diode) dimming light source installed on wall space |
| CN203279314U (en) * | 2013-06-19 | 2013-11-06 | 曾金星 | LED brightness adjusting circuit |
| CN104780683A (en) * | 2015-04-16 | 2015-07-15 | 长兴泛亚照明电器有限公司 | Dimming circuit of LED constant-current driver |
| CN105592595A (en) * | 2016-03-08 | 2016-05-18 | 深圳市华星光电技术有限公司 | Backlight modulation circuit and liquid crystal display device |
| CN206302610U (en) * | 2016-12-09 | 2017-07-04 | 天津工大海宇照明部品有限公司 | A kind of Dimmable LED indoor lamp illuminator |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20181002 |