CN105222046A - A kind of LED car lamp module driving power - Google Patents
A kind of LED car lamp module driving power Download PDFInfo
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- CN105222046A CN105222046A CN201410321301.4A CN201410321301A CN105222046A CN 105222046 A CN105222046 A CN 105222046A CN 201410321301 A CN201410321301 A CN 201410321301A CN 105222046 A CN105222046 A CN 105222046A
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- car lamp
- driving power
- lamp module
- led
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Abstract
The invention belongs to LED actuation techniques field, be a kind of LED car lamp module driving power, this driving power meets EMC requirement, can meet the instructions for use of different on-vehicle battery voltage.In circuit design, adopt the mode of the linear constant current of Width funtion input to control LED current, point 3 tunnels export, and can set different output currents according to the requirement of LED car lamp module different driving electric current, and input adopts TVS pipe and electrochemical capacitor to carry out duplicate protection.In PCB structural design, all adopt SMD components, wiring board adopts the aluminum base PCB of high heat conduction, ensures IC radiating requirements, strengthens reliability.Input and output all adopt connector to connect, and ensure reliable, and convenient installation and later maintenance, reduce replacement cost simultaneously.
Description
Technical field
The invention belongs to LED actuation techniques field, in particular to a kind of LED car lamp module driving power.
Background technology
Along with development and the maturation of LED manufacture technology, and the progressively decline of production cost, LED light source has started to be widely used in the fields such as car light, special lighting light fixture, public illumination, has huge development potentiality, is considered to 21 century light source most with prospects.
Travel requisite safety component as vehicle, the effect of signal lamp in vehicle active safety is most important.LED reliability is strong, long service life, excitation are high, little being convenient to of fast response time, volume is designed, brought the advantages such as remarkable change to vehicle appearance, makes it in car exterior lighting, obtain more and more general application.Enter 21st century, LED car lamp has become the new lover of vehicle trend, is widely used on various signal lamp.LED car lamp module driving power directly affects the quality of LED car lamp, and along with the development of LED car lamp, the requirement of people to LED car lamp module driving power is also more and more higher.
Current LED car lamp module is on the market many is directly powered by on-vehicle battery, the mode of resistance current limliting is adopted to control LED current, this mode LED light declines larger, the scope of application is single, and LED current can be changed along with the voltage pulsation of on-vehicle battery, thus affect brightness, also can reduce LED reliability simultaneously.LED car lamp module driving power involved in the present invention adopts the linear constant current chip controls LED current of Width funtion input, effective reduction light decay, the instructions for use of different on-vehicle battery voltage can be met, not by the impact of on-vehicle battery voltage pulsation, guarantee brightness is consistent, strengthen LED car lamp reliability, different output currents can be set according to the requirement of LED car lamp module to different driving electric current simultaneously.
Summary of the invention
The present invention is directed to the applicable cases of LED car lamp module driving power, devise one and meet EMC requirement, the LED car lamp module constant-current driving power supply of different on-vehicle battery voltage instructions for use can be met.
The technical solution used in the present invention is as follows: LED car lamp module driving power; comprise protection module, IC control module, link block; it is characterized in that; described LED car lamp module driving power adopts TVS pipe and electrochemical capacitor to carry out duplicate protection; the mode of the linear constant current of Width funtion input is adopted to control LED current; wiring board adopts aluminum base PCB, and input and output adopt connector to connect.Adopt the high-power TVS pipe of 6600W and electrochemical capacitor to suppress transient voltage and filtering, duplicate protection is played to IC.Adopt the MAX16823 linear constant current chip controls LED current of Width funtion input, point 3 tunnels export, and realize different output currents by change sample resistance resistance.Whole employing SMD components, wiring board adopts the aluminum base PCB of high heat conduction.Input adopts 2P connector to connect, and output adopts 6P connector to connect.
The invention has the beneficial effects as follows: make it easilier be tested by EMC by adopting the MAX16823 linear constant current chip of Width funtion input and adding the protection such as TVS pipe element at input.The scope of application is wide, meets Width funtion input, all can use, can set different output currents according to the requirement of LED car lamp module different driving electric current under different on-vehicle battery voltage.IC is arranged in the aluminum base PCB of high heat conduction, ensures IC radiating requirements, strengthens reliability.Input and output all adopt connector, ensure reliably to connect, and convenient installation and later maintenance, reduce replacement cost simultaneously.
Accompanying drawing explanation
Fig. 1 is a kind of LED car lamp module driving power of the present invention circuit theory diagrams;
Fig. 2 is a kind of LED car lamp module driving power of the present invention PCB top layer layout.
detailed description of the invention
This detailed description of the invention is described from circuit theory and PCB design below in conjunction with accompanying drawing.
Schematic diagram of the present invention is as shown in Figure 1: the protective effect after the both positive and negative polarity reversal connection caused due to maloperation is played in the rectification that diode D1 is used for circuit simultaneously.Two-way TVS pipe D0 and electrochemical capacitor C0 is used for surge protection and filtering.Linear constant current chip U1, resistance R1, R2, R3, R4, R5, R6, R7 and electric capacity C1, C2, C3 are current constant control parts, for setting the electric current that flows through LED and making it constant, wherein make sample resistance after R1-R2, R3-R4, R5-R6 parallel connection, make resistance more accurate, control the electric current of 3 paths of LEDs respectively simultaneously, to adapt to the different requirements of LED car lamp module, the both positive and negative polarity of corresponding 3 paths of LEDs of J1+J1-, J2+J2-, J3+J3-difference, directly meets LED.
PCB design of the present invention as shown in Figure 2, all adopts SMD components, and wiring board adopts the aluminum base PCB of high heat conduction, ensures IC radiating requirements, strengthens reliability.Input adopts 2P connector, the positive pole of corresponding input respectively and negative pole, and output adopts 6P connector, the positive pole of corresponding 3 paths of LEDs of difference and negative pole, can dock with different LED car light module, ensures to connect reliably, convenient installation and later maintenance, reduce replacement cost simultaneously.
Claims (5)
1. a LED car lamp module driving power, comprises protection module, IC control module, link block, it is characterized in that, described LED car lamp module driving power adopts TVS pipe and electrochemical capacitor to carry out duplicate protection; The mode of the linear constant current of Width funtion input is adopted to control LED current; Wiring board adopts aluminum base PCB; Input and output adopt connector to connect.
2. LED car lamp module driving power according to claim 1, is characterized in that, adopts the high-power TVS pipe of 6600W and electrochemical capacitor to suppress transient voltage and filtering, plays duplicate protection to IC.
3. LED car lamp module driving power according to claim 1, is characterized in that, adopts the MAX16823 linear constant current chip controls LED current of Width funtion input, and point 3 tunnels export, and realizes different output currents by change sample resistance resistance.
4. LED car lamp module driving power according to claim 1, is characterized in that, all adopt SMD components, and wiring board adopts the aluminum base PCB of high heat conduction.
5. LED car lamp module driving power according to claim 1, is characterized in that, input adopts 2P connector to connect, and output adopts 6P connector to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410321301.4A CN105222046A (en) | 2014-07-02 | 2014-07-02 | A kind of LED car lamp module driving power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410321301.4A CN105222046A (en) | 2014-07-02 | 2014-07-02 | A kind of LED car lamp module driving power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105222046A true CN105222046A (en) | 2016-01-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410321301.4A Pending CN105222046A (en) | 2014-07-02 | 2014-07-02 | A kind of LED car lamp module driving power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105222046A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109936892A (en) * | 2017-12-18 | 2019-06-25 | 天津工大海宇照明部品有限公司 | A kind of high-power LED car light module driving power |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013033644A (en) * | 2011-08-02 | 2013-02-14 | Panasonic Corp | Led drive device and lighting device using the same |
| CN202871260U (en) * | 2012-08-30 | 2013-04-10 | 飞亚达（集团）股份有限公司 | Backlight adjustment circuit |
| CN103434438A (en) * | 2013-09-09 | 2013-12-11 | 江苏新瑞峰信息科技有限公司 | Double-module automobile lamp control system based on CAN (Control Area Network) bus |
| CN203590558U (en) * | 2013-11-15 | 2014-05-07 | 天津工大海宇照明部品有限公司 | LED (light-emitting diode) car lamp module driving power supply |
-
2014
- 2014-07-02 CN CN201410321301.4A patent/CN105222046A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013033644A (en) * | 2011-08-02 | 2013-02-14 | Panasonic Corp | Led drive device and lighting device using the same |
| CN202871260U (en) * | 2012-08-30 | 2013-04-10 | 飞亚达（集团）股份有限公司 | Backlight adjustment circuit |
| CN103434438A (en) * | 2013-09-09 | 2013-12-11 | 江苏新瑞峰信息科技有限公司 | Double-module automobile lamp control system based on CAN (Control Area Network) bus |
| CN203590558U (en) * | 2013-11-15 | 2014-05-07 | 天津工大海宇照明部品有限公司 | LED (light-emitting diode) car lamp module driving power supply |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109936892A (en) * | 2017-12-18 | 2019-06-25 | 天津工大海宇照明部品有限公司 | A kind of high-power LED car light module driving power |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| DD01 | Delivery of document by public notice |
Addressee: Luo Jing Document name: Notification of Acceptance of Patent Application |
|
| DD01 | Delivery of document by public notice |
Addressee: Tianjin Gognda Hiyu State Lighting Co., Ltd. Document name: Notification to Make Rectification |
|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160106 |