CN107071965A - A kind of intelligent signal recognizes LED drive device - Google Patents
A kind of intelligent signal recognizes LED drive device Download PDFInfo
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- CN107071965A CN107071965A CN201710136860.1A CN201710136860A CN107071965A CN 107071965 A CN107071965 A CN 107071965A CN 201710136860 A CN201710136860 A CN 201710136860A CN 107071965 A CN107071965 A CN 107071965A
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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]
- H05B45/10—Controlling the intensity of the light
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- Dc-Dc Converters (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
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Abstract
The present invention proposes a kind of intelligent signal identification LED drive device, it is characterised in that：Including the em filtering and rectification circuit, switch switching circuit, transformer module, current rectifying and wave filtering circuit and light modulation process circuit being sequentially connected between device input and output end, the light modulation process circuit is controlled by a MCU process circuits, a detection circuit is provided with to know the information of voltage of output end in the output of light modulating device, and feeds back to the MCU process circuits exchange the runing adjustment of optical processing circuit；The MCU process circuits are provided with some terminals for connecting and obtaining outside Regulate signal, and each terminals correspond to a kind of modulated signal respectively.There are the present invention many electric currents to set function, go for more light fixtures, possess preferably compatible；And device provides light fixture voltage automatic identification function, Intelligent adjustment can be carried out to electric power output voltage according to light fixture voltage, reduce pressure difference, improve dimming effect and reduction ripple index.
Description
Technical field
The invention belongs to field of photoelectric technology, and in particular to a kind of intelligent signal recognizes LED drive device.
Background technology
LED/light source is energy-saving new type light source, has the advantages that power is small, pollution-free, has turned into modern illumination substantially
The main body of light source.LED is the device of low-voltage DC supply, it need to could be driven to send out equipped with the LED power of an electric energy conversion
Light, and under different application scenarios, people can have different requirements to LED luminosity, existing LED dimming power sources are big
Multi-output current is single, and the voltage amplitude that the power supply dimmed using PWM mode is exported when being adapted to different lamps is inconsistent, causes
Dimming effect is undesirable, while ripple index is higher during light modulation, that is, influences the service life of light fixture, also people's vision can be caused to do
Disturb, live, easily affect one's power of vision, these are urgent problems to be solved under such light for a long time.
The content of the invention
To overcome the problem of being referred in background technology, the present invention proposes a kind of intelligent signal identification LED drive device, had
Moderately good light output, its particular technique content is as follows：
A kind of intelligent signal recognizes LED drive device, and it includes the electromagnetism being sequentially connected between device input and output end
Filtering and rectification circuit, switch switching circuit, transformer module, current rectifying and wave filtering circuit and light modulation process circuit, light modulation processing
Circuit is controlled by a MCU process circuits, and electricity of the detection circuit to know output end is provided with the output of light modulating device
Information is pressed, and feeds back to the MCU process circuits exchange the runing adjustment of optical processing circuit；The MCU process circuits are provided
There are some terminals for connecting and obtaining outside Regulate signal, each terminals correspond to a kind of modulated signal respectively.
Those terminals include being used to connect obtaining the digital DALI terminals that can lead location lighting interface signal, obtaining for connecting
Irset terminals, the Dial-up terminals for connecting acquisition dialing signal of power taking resistance Regulate signal, or DMX terminals.
In one or more embodiments of the invention, the terminals also include being used to connect the PUSH for obtaining and touching by signal
Terminal.
In one or more embodiments of the invention, the PUSH terminals are connected to a little to touch by an optical coupling module and opened
Close.
In one or more embodiments of the invention, provided with a feedback between the detection circuit and switch switching circuit
Circuit, the VSET signals of the input side of the feedback circuit come from the output of detection circuit, and it is specifically included：By voltage-stabiliser tube ZD9,
FET Q5 and some resistance, electric capacity are constituted, and optical coupling module U9 input side is parallel with resistance R35, and resistance R35 mono-
End is grounded by resistance R39 connection DC source VDD, the other end by voltage-stabiliser tube ZD9, and resistance R52, R53 and R54 are connected in series in
Between DC source V+ and ground terminal, wherein resistance R53 and R54 tie point is connected with voltage-stabiliser tube ZD9 control pole, the voltage-stabiliser tube
Resistance R55 is connected between ZD9 control poles and ground terminal, voltage-stabiliser tube ZD9 control poles are grounded via resistance R44, FET Q5, electricity
Resistance R40 and R43 concatenations are connected between PUSH signal input parts and ground terminal, resistance R40 and R43 tie point and the voltage-stabiliser tube
ZD9 control poles are connected, and are connected between the voltage-stabiliser tube ZD9 negative electrode and control pole after electric capacity C17, electric capacity C16 and resistance R48 series connection
It is in parallel with electric capacity C17 again；Optical coupling module U9 outlet side is connected to the switch switching circuit；Driven by obtaining LED in real time
The information of voltage of dynamic device output end, the voltage output of power supply is adjusted by the switch switching circuit.
In one or more embodiments of the invention, the detection circuit is to be connected to this LED drive device output end
Partial pressure type circuit or pressure swing type circuit, to obtain the information of voltage of output end.
In one or more embodiments of the invention, what the em filtering and rectification circuit included being sequentially connected first is total to
Mould inductance LF1, the second common mode inductance LF2 and rectification chip BD1, first common mode inductance LF1 input are terminated with electric capacity C1, its
Output is terminated with electric capacity C3, and diode D1 is connected between first common mode inductance LF1 upper road input and upper road output end, its
Diode D2 is connected between lower road input and lower road output end, second common mode inductance LF2 upper road input and upper road are defeated
Go out between holding and be connected to diode D3, it is connected to diode D4 between road input and lower road output end down.
In one or more embodiments of the invention, the switch switching circuit include PWM chip U9, FET Q6,
Diode D10 and electric capacity C21, the simple side of transformer module via FET Q6 connection ground terminals, FET Q6's
Grid is connected to PWM chip U9, diode D10 anode and FET Q6 grid via diode D10, its
Negative electrode is connected to the parallel connection of PWM chip U9, diode D10 two ends one resistance R45, the FET Q6 source electrode and drain electrode connects
Meet electric capacity C21, diode D10 negative electrode via voltage-stabiliser tube ZD5 connection PWM chips U9 signal ground.
In one or more embodiments of the invention, the current rectifying and wave filtering circuit include the diode D5 that is connected in parallel and
D11, diode D5 and D11 anode are commonly connected to the primary side of transformer module, the negative electrode of the two as output, and in
Negative electrode is connected to electric capacity C9, resistance R21 and R51 with the indirectly in parallel of ground terminal.
In one or more embodiments of the invention, connection that the light modulation process circuit includes simultaneously is controlled by MCU processing
Light modulation process chip U5, the FET Q7 and inductance L1, FET Q7 and inductance L1 of circuit are connected to the rectifying and wave-filtering
Between the output end of circuit and the output end of this LED drive device, FET Q7 bank tube is connected to light modulation processing core
Piece U5, the inductance L1 two ends are grounded by diode D13 and D8 respectively, and diode D8 is parallel with electric capacity C18 and resistance R41.
The beneficial effects of the invention are as follows：Function is set with many electric currents, goes for more light fixtures, possesses preferably
Compatibility；And device provides light fixture voltage automatic identification function, intelligence can be carried out to electric power output voltage according to light fixture voltage
Can regulation, reduction pressure difference, improvement dimming effect and reduction ripple index.
Brief description of the drawings
Fig. 1 recognizes the theory diagram of LED drive device for the intelligent signal of the present invention.
Fig. 2 is connected to the feedback circuit structure schematic diagram detected between circuit and switch switching circuit for the present invention's.
Fig. 3 is em filtering of the invention and rectifier circuit structure schematic diagram.
Fig. 4 is switch switching circuit structural representation of the invention.
Fig. 5 is current rectifying and wave filtering circuit structural representation of the invention.
Fig. 6 is light modulation process circuit structural representation of the invention.
Embodiment
Below in conjunction with accompanying drawing, application scheme is further described：
Referring to accompanying drawing 1, a kind of intelligent signal recognizes LED drive device, and it includes being sequentially connected with device input 101 and output
Em filtering between end 102 is handled with rectification circuit, switch switching circuit, transformer module, current rectifying and wave filtering circuit and light modulation
Circuit, the light modulation process circuit is controlled by a MCU process circuits, is used in the output of light modulating device provided with a detection circuit
Know the information of voltage of output end, and feed back to the MCU process circuits exchange the runing adjustment of optical processing circuit；Should
MCU process circuits are provided with some terminals for connecting and obtaining outside Regulate signal, and each terminals correspond to a kind of modulation respectively
Signal.
Those terminals include being used to connect obtaining the digital DALI terminals that can lead location lighting interface signal, obtaining for connecting
Irset terminals, the Dial-up terminals for connecting acquisition dialing signal, DMX terminals, for connecting of power taking resistance Regulate signal
Obtain the PUSH terminals touched by signal.
Referring to accompanying drawing 2, in order to carry out Intelligent adjustment, pressure difference is reduced, improves dimming effect and reduction ripple index, in described
Detect and a feedback circuit is provided between circuit and switch switching circuit, the VSET signals of the input side of the feedback circuit come from inspection
The output of slowdown monitoring circuit, it is specifically included：It is made up of voltage-stabiliser tube ZD9, FET Q5 and some resistance, electric capacity, the optical coupling module
U9 input side is parallel with resistance R35, and resistance R35 one end, by resistance R39 connection DC source VDD, the other end is steady by this
Pressure pipe ZD9 is grounded, and resistance R52, R53 and R54 are connected in series between DC source V+ and ground terminal, wherein resistance R53 and R54 company
Contact is connected with voltage-stabiliser tube ZD9 control pole, and resistance R55 is connected between voltage-stabiliser tube ZD9 control poles and ground terminal, the voltage-stabiliser tube
ZD9 control poles are grounded via resistance R44, FET Q5, and resistance R40 and R43 concatenation are connected to PUSH signal input parts and ground
Between end, resistance R40 and R43 tie point are connected with voltage-stabiliser tube ZD9 control poles, the voltage-stabiliser tube ZD9 negative electrode and control pole
Between be connected to electric capacity C17, electric capacity C16 and resistance R48 series connection after it is in parallel with electric capacity C17 again；Optical coupling module U9 outlet side connects
It is connected to the switch switching circuit；By obtaining the information of voltage of LED drive device output end in real time, by the switch switching electricity
Road adjusts the voltage output of power supply.
The dynamic regulation of its output voltage is included to the runing adjustment of the light modulation process circuit, to improve dimming effect and drop
Low ripple index.
The detection circuit is the partial pressure type circuit or pressure swing type circuit for being connected to this LED drive device output end, to obtain
The information of voltage of output end；The partial pressure type circuit is some electricity being connected in series between LED drive device output end and ground terminal
Resistance, and in feedback point of the middle tie point as voltage signal；And pressure swing type circuit is then to include transformation coil, the transformation
The simple side joint of coil in LED drive device output end, primary side as voltage signal feedback point.
Referring to accompanying drawing 3, the em filtering and rectification circuit include the first common mode inductance LF1, the second common mode being sequentially connected
Inductance LF2 and rectification chip BD1, first common mode inductance LF1 input is terminated with electric capacity C1, and its output is terminated with electric capacity C3,
Diode D1 is connected between first common mode inductance LF1 upper road input and upper road output end, its lower road input and lower road
Diode D2 is connected between output end, two poles are connected between second common mode inductance LF2 upper road input and upper road output end
Pipe D3, it is connected to diode D4 between road input and lower road output end down.
Referring to accompanying drawing 4, the switch switching circuit includes PWM chip U9, FET Q6, diode D10 and electric capacity C21,
The simple side of transformer module is via FET Q6 connection ground terminals, and FET Q6 grid is via diode D10
PWM chip U9, diode D10 anode and FET Q6 grid are connected to, its negative electrode is connected to the PWM chip
The parallel connection of U9, the diode D10 two ends one resistance R45, the FET Q6 source electrode and drain electrode connection electric capacity C21, two pole
Pipe D10 negative electrode via voltage-stabiliser tube ZD5 connection PWM chips U9 signal ground；The PWM chip U9 passes through an optical coupling module U19
It is connected to the MCU process circuits.
Referring to accompanying drawing 5, the current rectifying and wave filtering circuit includes the diode D5's and D11, diode D5 and D11 being connected in parallel
Anode is commonly connected to the primary side of transformer module, and the negative electrode of the two is as output, and in the indirectly in parallel of negative electrode and ground terminal
It is connected to electric capacity C9, resistance R21 and R51.
The connection that includes referring to accompanying drawing 6, the light modulation process circuit and the light modulation process chip for being controlled by MCU process circuits
U5, FET Q7 and inductance L1, FET Q7 and inductance L1 are connected to the output end 108 and sheet of the current rectifying and wave filtering circuit
Between the output end 102 of LED drive device, FET Q7 bank tube is connected to the light modulation process chip U5, inductance L1
Two ends be grounded respectively by diode D13 and D8, diode D8 is parallel with electric capacity C18 and resistance R41.
It is that above-mentioned preferred embodiment should be regarded as application scheme embodiment for example, all with application scheme thunder
Deduce, replace with, technology that is approximate or making based on this, improving etc., it is regarded as the protection domain of this patent.
Claims (10)
1. a kind of intelligent signal recognizes LED drive device, it is characterised in that including being sequentially connected with device input and output end
Between em filtering and rectification circuit, switch switching circuit, transformer module, current rectifying and wave filtering circuit and light modulation process circuit,
The light modulation process circuit is controlled by a MCU process circuits, and a detection circuit is provided with to know in the output of light modulating device
The information of voltage of output end, and feed back to the MCU process circuits exchange the runing adjustment of optical processing circuit；At the MCU
Reason circuit is provided with some terminals for connecting and obtaining outside Regulate signal, and each terminals correspond to a kind of modulated signal respectively.
2. intelligent signal according to claim 1 recognizes LED drive device, it is characterised in that：Those terminals include using
The Irset ends that numeral can lead the DALI terminals of location lighting interface signal, resistance adjustment signal is obtained for connecting are obtained in connection
Son, the Dial-up terminals for connecting acquisition dialing signal, or DMX terminals.
3. intelligent signal according to claim 2 recognizes LED drive device, it is characterised in that：The terminals also include using
The PUSH terminals touched by signal are obtained in connection.
4. intelligent signal according to claim 3 recognizes LED drive device, it is characterised in that：The PUSH terminals pass through one
Optical coupling module is connected to a touch switch.
5. the intelligent signal identification LED drive device according to Claims 1-4 any one, it is characterised in that：The inspection
A feedback circuit is provided between slowdown monitoring circuit and switch switching circuit, the VSET signals of the input side of the feedback circuit come from detection
The output of circuit, it is specifically included：It is made up of voltage-stabiliser tube ZD9, FET Q5 and some resistance, electric capacity, optical coupling module U9
Input side be parallel with resistance R35, and resistance R35 one end, by resistance R39 connection DC source VDD, the other end is by the voltage stabilizing
Pipe ZD9 is grounded, and resistance R52, R53 and R54 are connected in series between DC source V+ and ground terminal, wherein resistance R53 and R54 connection
Point is connected with voltage-stabiliser tube ZD9 control pole, resistance R55 is connected between voltage-stabiliser tube ZD9 control poles and ground terminal, the voltage-stabiliser tube
ZD9 control poles are grounded via resistance R44, FET Q5, and resistance R40 and R43 concatenation are connected to PUSH signal input parts and ground
Between end, resistance R40 and R43 tie point are connected with voltage-stabiliser tube ZD9 control poles, the voltage-stabiliser tube ZD9 negative electrode and control pole
Between be connected to electric capacity C17, electric capacity C16 and resistance R48 series connection after it is in parallel with electric capacity C17 again；Optical coupling module U9 outlet side connects
It is connected to the switch switching circuit；By obtaining the information of voltage of LED drive device output end in real time, by the switch switching electricity
Road adjusts the voltage output of power supply.
6. intelligent signal according to claim 5 recognizes LED drive device, it is characterised in that：The detection circuit is connection
In the partial pressure type circuit or pressure swing type circuit of this LED drive device output end, to obtain the information of voltage of output end.
7. intelligent signal according to claim 5 recognizes LED drive device, it is characterised in that：The em filtering and rectification
Circuit includes the first common mode inductance LF1, the second common mode inductance LF2 and the rectification chip BD1 being sequentially connected, first common mode inductance
LF1 input is terminated with electric capacity C1, and its output is terminated with electric capacity C3, first common mode inductance LF1 upper road input and upper road
Diode D1 is connected between output end, it is connected to diode D2 down between road input and lower road output end, second common mode electricity
Diode D3 is connected between GanLF2Shang roads input and upper road output end, its lower road input and lower road output end are indirectly
There is diode D4.
8. intelligent signal according to claim 5 recognizes LED drive device, it is characterised in that：The switch switching circuit bag
PWM chip U9, FET Q6, diode D10 and electric capacity C21 are included, the simple side of transformer module is via FET Q6
Ground terminal is connected, FET Q6 grid is connected to PWM chip U9, diode D10 anode via diode D10
With FET Q6 grid, its negative electrode is connected to one resistance R45 of PWM chip U9, diode D10 two ends parallel connection, should
FET Q6 source electrode and drain electrode connection electric capacity C21, diode D10 negative electrode is via voltage-stabiliser tube ZD5 connection PWM chips
U9 signal ground.
9. intelligent signal according to claim 5 recognizes LED drive device, it is characterised in that：The current rectifying and wave filtering circuit bag
The anode for including the diode D5 and D11 being connected in parallel, diode D5 and D11 is commonly connected to the primary side of transformer module,
The negative electrode of the two is connected to electric capacity C9, resistance R21 and R51 as output, and in negative electrode with the indirectly in parallel of ground terminal.
10. intelligent signal according to claim 5 recognizes LED drive device, it is characterised in that：The light modulation process circuit bag
The connection that includes and light modulation process chip U5, FET Q7 and the inductance L1 for being controlled by MCU process circuits, FET Q7
And inductance L1 is connected between the output end of the current rectifying and wave filtering circuit and the output end of this LED drive device, FET Q7's
The two ends that bank tube is connected to the light modulation process chip U5, inductance L1 are grounded by diode D13 and D8 respectively, and diode D8 is simultaneously
It is associated with electric capacity C18 and resistance R41.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710136860.1A CN107071965A (en) | 2017-03-09 | 2017-03-09 | A kind of intelligent signal recognizes LED drive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710136860.1A CN107071965A (en) | 2017-03-09 | 2017-03-09 | A kind of intelligent signal recognizes LED drive device |
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| Publication Number | Publication Date |
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| CN107071965A true CN107071965A (en) | 2017-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710136860.1A Pending CN107071965A (en) | 2017-03-09 | 2017-03-09 | A kind of intelligent signal recognizes LED drive device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108207062A (en) * | 2018-01-31 | 2018-06-26 | 珠海雷特科技股份有限公司 | A kind of high-voltage LED controller for possessing output short circuit protection function |
| CN108834264A (en) * | 2018-07-30 | 2018-11-16 | 中山市蓝德电子有限公司 | A kind of LED light strip driving circuit with automatic adjustment power |
| CN110570821A (en) * | 2019-09-18 | 2019-12-13 | 广东晟合技术有限公司 | OLED optical compensation method, compensation device and display driving chip |
| CN110854398A (en) * | 2019-11-05 | 2020-02-28 | 中国工程物理研究院电子工程研究所 | Passive thermal battery activation device |
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| CN103096586A (en) * | 2012-12-29 | 2013-05-08 | 广东卓耐普智能技术股份有限公司 | Light-dimmer driving circuit |
| CN203279270U (en) * | 2013-04-26 | 2013-11-06 | 中山新驱动电子科技有限公司 | LED panel lamp adjustable in brightness and color temperature in remote manner |
| CN205912291U (en) * | 2016-07-11 | 2017-01-25 | 珠海雷特科技股份有限公司 | Unify LED intelligence power that compatible multiple current of adjusting luminance set up mode more |
| CN206743589U (en) * | 2017-03-09 | 2017-12-12 | 珠海雷特科技股份有限公司 | A kind of intelligent signal identifies LED drive device |
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2017
- 2017-03-09 CN CN201710136860.1A patent/CN107071965A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103096586A (en) * | 2012-12-29 | 2013-05-08 | 广东卓耐普智能技术股份有限公司 | Light-dimmer driving circuit |
| CN203279270U (en) * | 2013-04-26 | 2013-11-06 | 中山新驱动电子科技有限公司 | LED panel lamp adjustable in brightness and color temperature in remote manner |
| CN205912291U (en) * | 2016-07-11 | 2017-01-25 | 珠海雷特科技股份有限公司 | Unify LED intelligence power that compatible multiple current of adjusting luminance set up mode more |
| CN206743589U (en) * | 2017-03-09 | 2017-12-12 | 珠海雷特科技股份有限公司 | A kind of intelligent signal identifies LED drive device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108207062A (en) * | 2018-01-31 | 2018-06-26 | 珠海雷特科技股份有限公司 | A kind of high-voltage LED controller for possessing output short circuit protection function |
| CN108207062B (en) * | 2018-01-31 | 2023-12-29 | 珠海雷特科技股份有限公司 | High-voltage LED controller with output short-circuit protection function |
| CN108834264A (en) * | 2018-07-30 | 2018-11-16 | 中山市蓝德电子有限公司 | A kind of LED light strip driving circuit with automatic adjustment power |
| CN110570821A (en) * | 2019-09-18 | 2019-12-13 | 广东晟合技术有限公司 | OLED optical compensation method, compensation device and display driving chip |
| CN110854398A (en) * | 2019-11-05 | 2020-02-28 | 中国工程物理研究院电子工程研究所 | Passive thermal battery activation device |
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Application publication date: 20170818 |