CN109688659A - LED drive power mould group and the integral LED car light for applying it - Google Patents
LED drive power mould group and the integral LED car light for applying it Download PDFInfo
- Publication number
- CN109688659A CN109688659A CN201811568469.XA CN201811568469A CN109688659A CN 109688659 A CN109688659 A CN 109688659A CN 201811568469 A CN201811568469 A CN 201811568469A CN 109688659 A CN109688659 A CN 109688659A
- Authority
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- China
- Prior art keywords
- mould group
- led
- module
- drive power
- light source
- Prior art date
- 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.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 28
- 238000006243 chemical reaction Methods 0.000 claims abstract description 21
- 238000004146 energy storage Methods 0.000 claims abstract description 16
- 238000005070 sampling Methods 0.000 claims description 15
- 239000011324 bead Substances 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 5
- 239000004065 semiconductor Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 8
- 238000005457 optimization Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000012857 repacking Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 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]
-
- 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]
Abstract
The present invention relates to a kind of LED drive power mould groups, including power conversion module, MCU module, control module.Power conversion module is connected with external power supply and exports after external power supply is converted to internal electric source；MCU module is connected with power conversion module, and MCU module is powered by internal electric source and generates pwm signal；Control module includes being connected to control circuit, the driving chip based on pwm signal output drive signal between external power supply and LED light source mould group, control circuit includes switching tube, filter capacitor and the energy storage inductor controlled by driving signal, switching tube, filter capacitor and energy storage inductor are connected in series, and LED light source modules in parallel is in both ends of filter capacitor.The present invention also provides a kind of integral LED car lights, including LED light source mould group and above-mentioned LED drive power mould group.The present invention can reduce volume, integrated with LED light source mould group, and the optimization of economic benefit, social benefit can be better achieved.
Description
Technical field
The invention belongs to lighting technical fields, and in particular to a kind of LED drive power mould group and the integration using it
LED car lamp.
Background technique
With the development of lighting engineering, LED is applied to automotive luminaire and obtains great hair as a kind of green light source
Exhibition, the utilization of LED are just becoming the trend of car light market development.During LED technology is applied to car light, for the function of LED
Energy and mounting means are proposed more and more requirements, such as require LED car lamp that can directly replace currently on the market original
Halogen lamp or HID xenon lamp.And to realize requirement of the market to LED car lamp, while also proposed to LED car lamp driving new
It is required that LED car lamp is required more to be minimized with driving.
However, these LED car lamps are mostly split-type designs on existing market, i.e. LED driving and lamp two-part, and need
Additional connection, wherein LED drive circuit is complicated, volume is big, can not adapt to the demand of market development, LED car lamp installation with
In replacement process, the combination of LED drive circuit and LED, which cannot achieve, to be mounted directly or replaces, and assembly connection is complicated, this is just meaned
Bring high cost of labor.
Summary of the invention
The object of the present invention is to provide a kind of small LED drives so as to reduce volume, convenient for integrating with LED of circuit scale
Dynamic power supply mould group.
In order to achieve the above objectives, the technical solution adopted by the present invention is that:
A kind of LED drive power mould group, for driving LED light source mould group, the LED drive power mould group includes:
Power conversion module, the power conversion module are connected with external power supply and the external power supply are converted to internal electricity
It is exported behind source；
MCU module, the MCU module are connected with the power conversion module, and the MCU module is powered by the internal electric source
And generate pwm signal；
Control module, the control module include be connected to control circuit between the external power supply and the LED light source mould group,
Based on the driving chip of the pwm signal output drive signal, the control circuit includes being opened by what the driving signal controlled
Guan Guan, filter capacitor and energy storage inductor, the switching tube, the filter capacitor and the energy storage inductor are connected in series and are connected to institute
It states between external power supply and ground, the LED light source modules in parallel is in the both ends of filter capacitor.
Preferably, the LED drive power mould group further includes that the output voltage of the control module is sampled and sent
Enter the MCU module to achieve the output sampling module of open circuit protecting function.
Preferably, the output sampling module includes output sampling resistor.
Preferably, the LED drive power mould group further includes sampling to the input voltage of the power conversion module
And the MCU module is sent into achieve the input sample module of over-voltage protecting function.
Preferably, the input sample module includes input sample resistance.
Preferably, the power conversion module includes three terminal regulator.
Preferably, the power conversion module further includes being set between the external power supply and the three terminal regulator
Anti-reverse metal-oxide-semiconductor.
The present invention also provides a kind of small volumes, so as to directly replace the integral LED car light of installation comprising
LED light source mould group and above-mentioned LED drive power mould group, the LED drive power mould group are connected with the LED light source mould group
And drive the LED light source mould group.
Preferably, the LED light source mould group includes several LED lamp beads in parallel.
Preferably, each LED lamp bead is mounted on copper base.
Due to the above technical solutions, the present invention has the following advantages over the prior art: LED of the invention drives
It is power supply modular circuit small scale, easily controllable, so as to reduce volume, convenient for integrated with LED.Integral LED of the invention
Car light can directly be replaced installation, so that the optimization of economic benefit, social benefit be better achieved.
Detailed description of the invention
Attached drawing 1 is the appearance schematic diagram of integral LED car light of the invention.
Attached drawing 2 is the circuit diagram of LED drive power mould group in integral LED car light of the invention.
In the figures above: 1, LED drive power mould group；2, LED light source mould group.
Specific embodiment
The invention will be further described for embodiment shown in reference to the accompanying drawing.
Embodiment one: as shown in Fig. 1, a kind of integral LED car light, including integration connection (i.e. fixing assembling) to
The LED light source mould group and LED drive power mould group, LED drive power mould group for forming an entirety are connected with LED light source mould group
It connects and drives LED light source mould group.
LED drive power mould group includes power conversion module, MCU module and control module.
As shown in Fig. 2, power conversion module is connected with the external power supply VCC of 12V, for realizing DC-DC conversion
It is exported after external power supply to be converted to the internal electric source of 5V, power conversion module includes three terminal regulator U1, three terminal regulator U1
Input terminal Vin be connected to external power supply VCC through resistance R45 respectively and be grounded through capacitor C34.Then three terminal regulator U1's is defeated
Outlet Vout exports 5V voltage, and output end vo ut is also grounded through capacitor C35.External power supply VCC and three terminal regulator U1 it
Between, it is additionally provided with capacitor C33, resistance R56 and anti-reverse metal-oxide-semiconductor Q1, capacitor C33 is connected between external power supply VCC and ground, electricity
One end of resistance R56 is connected with external power supply VCC, and the other end is connected to the grid of anti-reverse metal-oxide-semiconductor Q1, anti-reverse metal-oxide-semiconductor Q1
Source electrode and drain electrode be connected on ground line.
MCU module includes MCU chip IC1 and its peripheral circuit, which is connected with power conversion module, thus
It is powered by internal electric source, and generates pwm signal.Internal electric source of 19 feet of MCU chip IC1 through resistance R62 connection 5V, also through electricity
Hold C38 ground connection, the tie point setting function of reset of resistance R62 and capacitor C38.5 feet of MCU chip IC1 are for exporting PWM letter
Number.
Control module is used for drive control LED light source mould group, it includes driving chip IC2 and control circuit.Driving chip
IC2 is used to be based on pwm signal and output drive signal, 5 feet of MCU chip IC1 access the 6 of driving chip IC2 after resistance R63
Foot, the both ends of resistance R63 are grounded after resistance R64, capacitor C39 jointly respectively.1 foot of driving chip IC2 through resistance R65 and with
12V power supply is connected, and 1 foot of driving chip IC2 is also grounded through capacitor C40.2 feet, 3 feet of driving chip IC2 connect altogether and export
Driving signal.Control circuit is connected between external power supply and LED light source mould group comprising switching tube Q2, filter capacitor C32 and
Energy storage inductor L7.Switching tube Q2 is controlled by driving signal, and 2 feet, 3 feet of driving chip IC2 are connected to through resistance R61 again after connecing altogether
The grid of switching tube Q2 is also connected with resistance R60 between the grid and source electrode of switching tube Q2.Switching tube Q2, filter capacitor C32 and
Energy storage inductor L7 is connected in series, and is connected between external power supply VCC and ground, i.e. one end of filter capacitor C32 and external power supply VCC
It is connected, the other end of filter capacitor C32 is connected to one end of energy storage inductor L7, the other end connection switch pipe of energy storage inductor L7
The drain electrode of Q2, and the source electrode of switching tube Q2 is then grounded.Also, the connecting pin of energy storage inductor L7 and switching tube Q2 are additionally coupled to two poles
The anode of pipe D8, the cathode of diode D8 are connected to external power supply VCC.LED light source modules in parallel in filter capacitor C32 two
End, the i.e. both ends of filter capacitor C32 constitute the voltage output port of LED drive power mould group.
LED drive power mould group can also include input sample module and output sampling module.Input sample module is used for
To the input voltage of power conversion module, i.e. external power supply VCC sample and sampled result is sent into MCU module, i.e. MCU core
6 feet of piece IC1, so that MCU module realizes over-voltage protecting function.Input sample module includes being connected to external power supply VCC and ground
Between input sample resistance R55, R57, the tie point of input sample resistance R55 and R57 be connected to 6 feet of MCU chip IC1 from
And input voltage sampled value is obtained, the tie point of input sample resistance R55 and R57 are also grounded after capacitor C36.Output sampling mould
Block is used to carry out sampling to the output voltage of control module and sampled result is sent into MCU module, i.e. 9 feet of MCU chip IC1,
So that MCU module realizes open circuit protecting function.Exporting sampling module includes the company for being connected to filter capacitor C32 and energy storage inductor L7
Output sampling resistor R58, R59 between end and ground are met, the tie point of output sampling resistor R58 and R59 are connected to MCU chip
To obtain output voltage sampled value, the tie point of output sampling resistor R58 and R59 are also grounded after capacitor C37 9 feet of IC1.
Temperature protection function can also be arranged in MCU chip IC1.
LED light source mould group includes several LED lamp beads in parallel, and present embodiment illustrates 3 LED lamp beads, respectively
LED1, LED2 and LED3, they are connected in parallel on the both ends of filter capacitor C32.Each LED lamp bead is mounted on copper base, thus shape
At LED light source mould group, the heat dissipation problem of LED lamp bead is efficiently solved.
When the driving signal of switching tube Q2 is high level, switching tube Q2 conducting, energy storage inductor L7 magnetizes, and flows through energy storage electricity
The electric current for feeling L7 is linearly increasing, while charging to output filter capacitor C32, is supplied to LED light source mould group energy；As switching tube Q2
Driving signal be low level when, energy storage inductor L7 electric current is linearly reduced, output voltage by filter capacitor C32 discharge, and reduction
Energy storage inductor L7 electric current maintains, and output is kept to have a stable electric current.
To sum up, for the deficiencies in the prior art, the technical problem to be solved by the present invention is LED car lamp is integrated
Design, realize that small in size, assembly is simple, energy conservation and environmental protection, so as to directly assemble or replace repacking LED car lamp, reduction people
Work cost.
Compared with prior art, the present invention advantage is:
Since the present invention is controlled in LED actuation techniques using MCU, LED drive power mould group ultra-small dimensions/built-in design,
So that using the LED car lamp product of this driving mould group, compared to the existing LED car lamp product in market, size be only its 1/3, and have
Effect solve LED car lamp in the prior art directly simply cannot install or replace repacking the drawbacks of, solve manufacturer with
User produces the excessively high various drawbacks of installation cost expense.
Micro-control unit MCU control technology, constant current output effectively improve the efficiency of LED car lamp, intelligentized progress temperature
Degree control, the functions such as open circuit, short-circuit protection effectively extend the service life of LED lamp bead, energy conservation and environmental protection, thus preferably real
The optimization of existing economic benefit, social benefit.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of LED drive power mould group, for driving LED light source mould group, it is characterised in that: the LED drive power mould group
Include:
Power conversion module, the power conversion module are connected with external power supply and the external power supply are converted to internal electricity
It is exported behind source；
MCU module, the MCU module are connected with the power conversion module, and the MCU module is powered by the internal electric source
And generate pwm signal；
Control module, the control module include be connected to control circuit between the external power supply and the LED light source mould group,
Based on the driving chip of the pwm signal output drive signal, the control circuit includes being opened by what the driving signal controlled
Guan Guan, filter capacitor and energy storage inductor, the switching tube, the filter capacitor and the energy storage inductor are connected in series and are connected to institute
It states between external power supply and ground, the LED light source modules in parallel is in the both ends of filter capacitor.
2. LED drive power mould group according to claim 1, it is characterised in that: the LED drive power mould group further includes
The output voltage of the control module is sampled and is sent into the MCU module to achieve the output of open circuit protecting function
Sampling module.
3. LED drive power mould group according to claim 2, it is characterised in that: the output sampling module includes output
Sampling resistor.
4. LED drive power mould group according to claim 1, it is characterised in that: the LED drive power mould group further includes
The input voltage of the power conversion module is sampled and is sent into the MCU module to achieve over-voltage protecting function
Input sample module.
5. LED drive power mould group according to claim 4, it is characterised in that: the input sample module includes input
Sampling resistor.
6. LED drive power mould group according to claim 1, it is characterised in that: the power conversion module includes three ends
Voltage-stablizer.
7. LED drive power mould group according to claim 6, it is characterised in that: the power conversion module further includes setting
The anti-reverse metal-oxide-semiconductor being placed between the external power supply and the three terminal regulator.
8. a kind of integral LED car light, including LED light source mould group, it is characterised in that: the integral LED car light further include as
LED drive power mould group described in any one of claims 1 to 7, the LED drive power mould group and the LED light source mould
Group is connected and drives the LED light source mould group.
9. integral LED car light according to claim 8, it is characterised in that: the LED light source mould group include several simultaneously
The LED lamp bead of connection.
10. integral LED car light according to claim 9, it is characterised in that: each LED lamp bead is mounted on copper base
On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811568469.XA CN109688659B (en) | 2018-12-21 | LED driving power supply module and integrated LED car lamp applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811568469.XA CN109688659B (en) | 2018-12-21 | LED driving power supply module and integrated LED car lamp applying same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109688659A true CN109688659A (en) | 2019-04-26 |
| CN109688659B CN109688659B (en) | 2024-04-30 |
Family
ID=
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114913809A (en) * | 2022-03-09 | 2022-08-16 | 马瑞利汽车零部件(芜湖)有限公司 | Car light display screen control system based on Mini LED light source |
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