CN108024422A - A kind of bluetooth color-temperature regulating LED drive power - Google Patents
A kind of bluetooth color-temperature regulating LED drive power Download PDFInfo
- Publication number
- CN108024422A CN108024422A CN201810036946.1A CN201810036946A CN108024422A CN 108024422 A CN108024422 A CN 108024422A CN 201810036946 A CN201810036946 A CN 201810036946A CN 108024422 A CN108024422 A CN 108024422A
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- diode
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- effect tube
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- bluetooth
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Classifications
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- 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]
-
- 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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/175—Controlling the light source by remote control
- H05B47/19—Controlling the light source by remote control via wireless transmission
Abstract
The invention belongs to field of LED drive and disclose a kind of bluetooth color-temperature regulating LED drive power；Input terminal is connected with diode V1, diode V2 forward direction, and diode V1, the drain of diode V2 output terminals connection field-effect tube V1, emitting led group emitting led equipped with being sequentially connected in series；The TXD pins of the bluetooth module are connected with microcontroller P3.0 pins, and RXD pins are connected with P3.1；Described microcontroller output pin P1.0, P1.1, P1.2, the P1.3 is connected with the in-phase input end of corresponding amplifier respectively, the controlled stage of the corresponding field-effect tube V2 of amplifier in-phase input end connection, the source class of the field-effect tube V2 are connected to ground by resistance R1；Each group of the emitting led group of output terminal all with inductance L1 is connected, and the drain electrode of each group of emitting led group of output terminal all with field-effect tube V2 is connected.The driving power circuit stability of the present invention is strong, and driving power is efficient, realizes that radio remote distance is adjusted by bluetooth, convenient and efficient, practical value is high.
Description
Technical field
The present invention relates to field of LED drive technology, and in particular to a kind of bluetooth color-temperature regulating LED drive power.
Background technology
With semiconductor light emitting new material development and manufacturing process continuously improve and high-capacity LED integrated driving core
The constantly improve of piece, high light large power luminous diode illuminating light source with its efficiently, energy-saving and environmental protection the advantages that gradually step into day
Often life, future will progressively substitute incandescent lamp, fluorescent lamp etc. to become general illumination field new light sources.Related colour is generally used in illumination
Temperature is measured, the reference color temperature of the warm white such as incandescent lamp and warm white fluorescent lamp to weigh the dyeability of white light with Kelvin's thermometric scale (K)
For 2000-4100K, cool white light reference color temperature is about 4100~6500K.In daily life or artistic place, to reach certain lamp
Light effect, such as stage and room background wall or decorative light, can realize by adjusting the color degree of rendering of light.Cause
LED's is small, the LED of dozens of different colours can be integrated on the area of common bulb size and form mixing light source, leads to
Overregulate the luminous intensity of LED modules with different colors, you can reach lighting rendering effect.
Bluetooth is a kind of wireless technology standard, it can be achieved that short between fixed equipment, mobile equipment and building personal area network
Range data exchanges (using the UHF radio waves of the ISM band of 2.4-2.485GHz).With the fast development of smart home,
Nowadays using wireless technology the hot spot of smart home development has been had become to adjust the colour temperature of LED.So how to provide one
Kind bluetooth color-temperature regulating LED drive power is art technology to meet requirement of the smart home development to the regulation and control of LED lamp colour temperature
Personnel's problem to be solved.
The content of the invention
The present invention is directed to the LED tonings difficult point that circuit temperature is more complicated and drive efficiency is relatively low in prior art, there is provided
A kind of bluetooth color-temperature regulating LED drive power.
The present invention using following technical scheme in order to solve the above technical problems, realized：
Design a kind of bluetooth color-temperature regulating LED drive power, including Buck transformation topology circuits, LED illuminating circuits and PWM perseverances
Stream adjusts circuit；The Buck transformation topology circuits input voltage is 220V AC voltage, and the L levels and N of input are respectively with two
The positive connection of pole pipe V1, diode V2, the diode V1, the drain of diode V2 output terminals connection field-effect tube V1, institute
The diode V1 input terminals stated still with diode V3 Opposite direction connections, diode V2 input terminals also with diode V4 Opposite direction connections,
The diode V3 and the other end ground connection of diode V4；The drain of the field-effect tube V1 also with capacitance C1, voltage stabilizing two
The INA pins connection of pole pipe V5, driving chip, the controlled stage of the field-effect tube V1 and the OUTB pins of driving chip connect
Connect, the source class of the field-effect tube V1 and the output terminal of capacitance C1, inductance L1, the backward end of diode V6 and driving chip
OUTA pins connect；The zener diode V5 and the other end ground connection of diode V6；The LED illuminating circuits are some
Group light emitting LED lamp group in parallel, the light emitting LED lamp group are emitting led equipped with being sequentially connected in series；The PWM constant current tune
Economize on electricity road includes bluetooth module, microcontroller, amplifier, field-effect tube V2 and resistance R1, the TXD pins of the bluetooth module and
Microcontroller P3.0 pins connect, and RXD pins are connected with P3.1；Described microcontroller output pin P1.0, P1.1, P1.2, the P1.3
Connected respectively with the in-phase input end of corresponding amplifier, the control of the corresponding field-effect tube V2 of amplifier in-phase input end connection
Level processed, the source class of the field-effect tube V2 are connected to ground by resistance R1；Each group of the light emitting LED lamp group all with electricity
Feel the output terminal connection of L1, the drain electrode of the output terminal of each group of light emitting LED lamp group all with field-effect tube V2 is connected.
Operation principle：If the output terminal of Buck transformation topology circuits is the light emitting LED lamp group of main line parallel connection, mixed to realize
Light color temperature is adjustable, and connecting respectively in every group of light emitting LED lamp group, several are emitting led, every group of emitting led driving current warp
After corresponding field-effect tube V2 source electrode sample resistances R1 samplings, it is converted into being proportional to the pulse voltage signal of LED drive current, should
Signal after microcontroller receives and with the reference signal inside microcontroller relatively after, go control pwm signal duty cycle, with stabilization
The average value of LED drive current, the pwm signal of adjustable duty cycle realize some paths of LEDs driving current Independent adjustables, to realize
LED illumination adjustable color, wherein the design of the Buck transformation topology circuits without input capacitance of power circuit of the present invention is not only favourable
In integrated design, and the harmonic distortion of input current is small, and driving power whole efficiency reaches more than 90%.
More preferable, the bluetooth module is CH-06 chips.
More preferable, the microcontroller is STC15F204EA type microcontrollers.
More preferable, the output terminal of the inductance L1 is also associated with capacitance C1, capacitance C1 other ends ground connection.
More preferable, the L levels of the Buck transformation topology circuits input are also associated with electromagnetic interface filter before with N.
More preferable, described emitting led group is equipped with 4 groups altogether, and described every group emitting led group is imitated by corresponding fields
Should pipe V2 and amplifier output pin P1.0, P1.1, P1.2, P1.3 corresponding with microcontroller be sequentially connected.
More preferable, the driving chip is IR4426.
A kind of bluetooth color-temperature regulating LED drive power proposed by the present invention, beneficial effect are：
(1) driving power circuit of the invention uses constant current drive mode, and the ripple requirement to voltage is relatively low, therefore in Buck
In transformation topology circuit design, high-voltage filtering capacitor after rectifier bridge is not only eliminated, while also suitably reduce output filtered electrical
Hold, not only improve reduction product cost, be also beneficial to extend the service life of driving power, while it is total to also reduce input current
Percent harmonic distortion (THD)；
(2) the Buck transformation topology circuits designed in power circuit of the invention are not only advantageous to integration without input capacitance
Integrated design, and the harmonic distortion of input current is small, and driving power whole efficiency reaches more than 90%；
(3) due to LED as the increase of electric current, the forward conduction voltage of diode will also change therewith, on the other hand, with
The change of environment temperature, the forward voltage drop and electric current of LED will also change therewith, and power circuit of the present invention is driven using constant-current source
It is dynamic, improve the stability that LED shines；
(4) circuit of the present invention can be communicatively coupled by terminal device using blue tooth wireless technology and bluetooth module,
Terminal device adjusts in microcontroller the parameter regulation reference signal that sets to adjust the duty cycle of pwm signal, reaches adjusting colour temperature
Purpose.
(5) apparatus of the present invention can at most adjust 4 groups emitting led group of colour temperature at the same time, by bluetooth realize radio remote away from
Convenient and efficient from adjusting, practical value is high.
Brief description of the drawings
The present invention is described in further detail for embodiment in below in conjunction with the accompanying drawings, but does not form to the present invention's
Any restrictions.
Fig. 1 is the connection diagram of Buck transformation topology circuits and LED illuminating circuits in the embodiment of the present invention；
Fig. 2 is the connection diagram of LED illuminating circuits and PWM constant flow regulation circuits in the embodiment of the present invention.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.
Refering to shown in attached drawing 1- Fig. 2, a kind of bluetooth color-temperature regulating LED drive power of the invention, including Buck transformation topologies
Circuit, LED illuminating circuits and PWM constant flow regulation circuits；
The Buck transformation topology circuits input voltage is 220V AC voltage, the L levels and N of input respectively with diode
The positive connection of V1, diode V2, the diode V1, the drain of diode V2 output terminals connection field-effect tube V1 are described
Diode V1 input terminals are still described also with diode V4 Opposite direction connections with diode V3 Opposite direction connections, diode V2 input terminals
Diode V3 and diode V4 the other end ground connection；The drain of the field-effect tube V1 also with capacitance C1, zener diode
The INA pins connection of V5, driving chip IR4426, the controlled stage of the field-effect tube V1 and the OUTB of driving chip IR4426
Pin connects, the source class of the field-effect tube V1 and the output terminal of capacitance C1, inductance L1, the backward end of diode V6 and driving
The OUTA pins connection of chip I R4426；The zener diode V5 and the other end ground connection of diode V6, the inductance
The output terminal of L1 is also associated with capacitance C1, capacitance C1 other ends ground connection, the L of Buck transformation topology circuits input
Electromagnetic interface filter is also associated with before level and N；The LED illuminating circuits are some groups in parallel emitting led group, the hair
Light LED groups are emitting led equipped with being sequentially connected in series；Described emitting led group is equipped with 4 groups altogether, and described every group emitting led group equal
It is sequentially connected by corresponding field-effect tube V2 and amplifier output pin P1.0, P1.1, P1.2, P1.3 corresponding with microcontroller.
The PWM constant flow regulations circuit includes bluetooth module CH-06, microcontroller STC15F204EA, amplifier, field effect
Should the TXD pins of pipe V2 and resistance R1, the bluetooth module CH-06 be connected with microcontroller STC15F204EA P3.0 pins,
RXD pins are connected with P3.1；Described microcontroller STC15F204EA output pins P1.0, P1.1, P1.2, the P1.3 respectively with it is right
The in-phase input end of amplifier is answered to connect, the controlled stage of the corresponding field-effect tube V2 of amplifier in-phase input end connection, institute
The source class of the field-effect tube V2 stated is connected to ground by resistance R1；Emitting led group of described each group is all defeated with inductance L1
Outlet connects, and the drain electrode of each group of emitting led group of output terminal all with field-effect tube V2 is connected.
Operation principle：The output terminal of Buck transformation topology circuits is the light emitting LED lamp group of four tunnels parallel connection, to realize mixed light
Adjustable color, if main line of connecting respectively in every group of light emitting LED lamp group is emitting led, the driving current of every group of light emitting LED lamp group
After corresponding field-effect tube V2 source electrode sample resistances R1 samplings, it is converted into being proportional to the pulse voltage signal of LED drive current,
The signal through microcontroller STC15F204EA reception after and with the reference signal inside microcontroller STC15F204EA relatively after, go to control
The duty cycle of pwm signal processed, to stablize the average value of LED drive current, the pwm signal of adjustable duty cycle realizes some paths of LEDs
Driving current Independent adjustable, to realize LED illumination adjustable color, and bluetooth module CH-06 can pass through Bluetooth technology and movement
Terminal connects, by mobile terminal adjust microcontroller STC15F204EA it is parameter-embedded since adjust microcontroller STC15F204EA
Internal reference signal achievees the purpose that to adjust colour temperature.
Microcontroller STC15F204EA controls the pwm signal program of adjustable duty cycle as follows in the present embodiment：
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (7)
- A kind of 1. bluetooth color-temperature regulating LED drive power, it is characterised in that including Buck transformation topology circuits, LED illuminating circuits and PWM constant flow regulation circuits；The Buck transformation topology circuits input voltage is 220V, 50Hz alternating voltage, the L levels and N of input respectively with two poles The positive connection of pipe V1, diode V2, the diode V1, the drain of diode V2 output terminals connection field-effect tube V1 are described Diode V1 input terminals still with diode V3 Opposite direction connections, diode V2 input terminals also with diode V4 Opposite direction connections, institute The diode V3 stated and the other end ground connection of diode V4；The drain of the field-effect tube V1 also with capacitance C1, two pole of voltage stabilizing The INA pins connection of pipe V5, driving chip, the controlled stage of the field-effect tube V1 and the OUTB pins of driving chip connect, The source class of the field-effect tube V1 and the output terminal of capacitance C1, inductance L1, the backward end of diode V6 and driving chip OUTA pins connect；The zener diode V5 and the other end ground connection of diode V6；The LED illuminating circuits are some Group light emitting LED lamp group in parallel, the light emitting LED lamp group is sequentially connected in series emitting led equipped with several；The PWM Constant flow regulation circuit includes bluetooth module, microcontroller, amplifier, field-effect tube V2 and resistance R1, the TXD of the bluetooth module Pin is connected with microcontroller P3.0 pins, and RXD pins are connected with P3.1；The microcontroller output pin P1.0, P1.1, P1.2, P1.3 are connected with the in-phase input end of corresponding amplifier respectively, amplifier in-phase input end connection corresponding fields effect Should pipe V2 controlled stage, the source class of the field-effect tube V2 is connected to ground by resistance R1；Described each group it is emitting led Output terminal of the lamp group all with inductance L1 is connected, and the drain electrode of the output terminal of each group of light emitting LED lamp group all with field-effect tube V2 is connected.
- A kind of 2. bluetooth color-temperature regulating LED drive power according to claim 1, it is characterised in that the bluetooth module For CH-06 chips.
- 3. a kind of bluetooth color-temperature regulating LED drive power according to claim 1, it is characterised in that the microcontroller is STC15F204EA type microcontrollers.
- 4. a kind of bluetooth color-temperature regulating LED drive power according to claim 1, it is characterised in that the inductance L1's Output terminal is also associated with capacitance C1, capacitance C1 other ends ground connection.
- A kind of 5. bluetooth color-temperature regulating LED drive power according to claim 1, it is characterised in that the Buck conversion Electromagnetic interface filter is also associated with before the L levels and N of topological circuit input.
- A kind of 6. bluetooth color-temperature regulating LED drive power according to claim 1, it is characterised in that described emitting led group 4 groups are equipped with altogether, and every group of light emitting LED lamp group passes through corresponding field-effect tube V2 and amplifier output corresponding with microcontroller Pin P1.0, P1.1, P1.2, P1.3 are sequentially connected.
- A kind of 7. bluetooth color-temperature regulating LED drive power according to claim 1, it is characterised in that the driving chip For IR4426.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810036946.1A CN108024422A (en) | 2018-01-15 | 2018-01-15 | A kind of bluetooth color-temperature regulating LED drive power |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810036946.1A CN108024422A (en) | 2018-01-15 | 2018-01-15 | A kind of bluetooth color-temperature regulating LED drive power |
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| Publication Number | Publication Date |
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| CN108024422A true CN108024422A (en) | 2018-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810036946.1A Pending CN108024422A (en) | 2018-01-15 | 2018-01-15 | A kind of bluetooth color-temperature regulating LED drive power |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111145821A (en) * | 2018-11-05 | 2020-05-12 | 爱思开海力士有限公司 | Termination circuit and semiconductor device including the same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205213078U (en) * | 2015-12-12 | 2016-05-04 | 浙江凯耀照明股份有限公司 | LED lamp |
| CN206596269U (en) * | 2017-03-24 | 2017-10-27 | 安徽林驰电子有限公司 | Dimmable LED drive control circuit |
| CN206807824U (en) * | 2017-05-04 | 2017-12-26 | 深圳市帝莱特照明有限公司 | A kind of middle low power intelligent lighting dims color-changed LED driving power without stroboscopic |
-
2018
- 2018-01-15 CN CN201810036946.1A patent/CN108024422A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205213078U (en) * | 2015-12-12 | 2016-05-04 | 浙江凯耀照明股份有限公司 | LED lamp |
| CN206596269U (en) * | 2017-03-24 | 2017-10-27 | 安徽林驰电子有限公司 | Dimmable LED drive control circuit |
| CN206807824U (en) * | 2017-05-04 | 2017-12-26 | 深圳市帝莱特照明有限公司 | A kind of middle low power intelligent lighting dims color-changed LED driving power without stroboscopic |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111145821A (en) * | 2018-11-05 | 2020-05-12 | 爱思开海力士有限公司 | Termination circuit and semiconductor device including the same |
| CN111145821B (en) * | 2018-11-05 | 2023-10-13 | 爱思开海力士有限公司 | Termination circuit and semiconductor device including the same |
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Application publication date: 20180511 |
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