CN107795862B - LED light based on multichannel independence constant current driving - Google Patents
LED light based on multichannel independence constant current driving Download PDFInfo
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- CN107795862B CN107795862B CN201610794862.5A CN201610794862A CN107795862B CN 107795862 B CN107795862 B CN 107795862B CN 201610794862 A CN201610794862 A CN 201610794862A CN 107795862 B CN107795862 B CN 107795862B
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- led light
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- 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
-
- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
- F21V29/503—Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
-
- 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
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
-
- 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]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The present invention provides a kind of LED light based on multichannel independence constant current driving, including lamp bracket, LED component and control circuit, control circuit includes electroless constant voltage source module and multichannel independence constant-current drive circuit, the input of electroless constant voltage source module terminates AC input, the output end of the electroless constant voltage source module provides constant voltage source to multichannel independence constant-current drive circuit, LED component is connected in series by the grouping of plurality of LEDs lamp bead, and multichannel independence constant-current drive circuit independently concatenates one group of LED lamp bead per output end group all the way.The beneficial effect is that: each paths of LEDs lamp bead independence constant current drives, and is regulated and controled between LED multi-path lamp bead using split-phase, the calorific value of LED light is effectively reduced, reduce the requirement to lamp body radiator, split-phase regulation simultaneously, reduces the fluctuation depth of LED light, overcomes stroboscopic phenomenon.
Description
Technical field
The present invention relates to a kind of LED light, and in particular to a kind of LED light based on multichannel independence constant current driving.
Background technique
LED light source has many advantages, such as that energy-efficient, the service life is long, environmentally protective and safety coefficient is high, is suitable for family, quotient
The long-time of the various public situations such as field, hospital illuminates.LED lamp currently on the market is being handed over as common incandescent lamp
Stroboscopic is inevitably resulted under the driving of galvanic electricity, stroboscopic is the period that alternating current voltage constantly changes and cause intensity of illumination
Property variation, can also cause serious harm to people's daily life, physical and mental health with noise while stroboscopic.
LED is a kind of solid light emitting semiconductor device, and power drives LED light source shines, and is generally driven using constant-current supply
Dynamic LED light source shines, while can also increase the service life of LED light source.There are two types of the method for realization constant-current supply is general, one
Kind is to be modulated using Switching Power Supply to output electric current, is divided into switching pulse pulsewidth modulation and switching pulse frequency modulation(PFM), separately
One is generate continuous current by current regulator diode to drive LED light source outside.The electricity of output electric current is modulated using Switching Power Supply
Road is more complicated, higher cost；LED light source is driven to have biggish temperature value using current regulator diode generation continuous current,
Influence the precision of output electric current.Therefore, how to improve the stability of LED light source driving, reliability, accuracy and reduce cost
It is present urgent problem.
Summary of the invention
For the defects in the prior art, the present invention provides a kind of LED light based on multichannel independence constant current driving, make every
The constant current of LED lamp bead independence drives all the way, is regulated and controled between LED multi-path lamp bead using split-phase, the calorific value of LED light is effectively reduced, and drops
The low requirement to lamp body radiator, while split-phase regulates and controls, and reduces the fluctuation depth of LED light, overcomes stroboscopic phenomenon.
A kind of LED light based on multichannel independence constant current driving, including lamp bracket, LED component and control circuit, control circuit packet
Electroless constant voltage source module and multichannel independence constant-current drive circuit are included, the input termination AC of electroless constant voltage source module is defeated
Enter, the output end of the electroless constant voltage source module provides constant voltage source, LED component to multichannel independence constant-current drive circuit
It is to be connected in series by the grouping of plurality of LEDs lamp bead, multichannel independence constant-current drive circuit is independently concatenated per output end group all the way
One group of LED lamp bead.
LED light based on multichannel independence constant current driving of the invention is made of lamp bracket, LED component and control circuit, wherein
Control circuit include electroless constant voltage source module and multichannel independence constant-current drive circuit, electroless constant voltage source module
Input termination alternating current input, the output end of the electroless constant voltage source module provide constant to multichannel independence constant-current drive circuit
Voltage source, LED component is connected in series by the grouping of plurality of LEDs lamp bead, multichannel independence constant-current drive circuit per exporting all the way
End group independently concatenates one group of LED lamp bead, so that each paths of LEDs lamp bead independence constant current drives, uses between LED multi-path lamp bead
Split-phase regulation, is effectively reduced the calorific value of LED light, reduces the requirement to lamp body radiator, while split-phase regulates and controls, and reduces LED
The fluctuation depth of light, overcomes stroboscopic phenomenon.
Optionally, it in a kind of above-mentioned LED light based on multichannel independence constant current driving, is provided among lamp bracket for installing
The rectangle installing frame of LED component, the two sides of the rectangle installing frame extend form radiating wing outward, in one end of rectangle installing frame
It is provided with installation card slot, a circle wiring channel is additionally provided with around rectangle installing frame.
Optionally, in a kind of above-mentioned LED light based on multichannel independence constant current driving, radiating wing is triangular in shape, in the heat dissipation
Thermovent and strip groove are provided on the wing.
Optionally, in a kind of above-mentioned LED light based on multichannel independence constant current driving, electroless constant voltage source module includes the
One voltage-stablizer, the second voltage-stablizer, oscillator, stretch circuit, phase assignments superposing control circuit, Width funtion float to track and adjust
Economize on electricity road, voltage-tracing sampling/blanking signal sample circuit, Vf value identification circuit, protect circuit, integrated logic control circuit with
And intelligent control interface circuit；Second voltage-stablizer is linear voltage regulator；First voltage-stablizer is used for the linear voltage regulator
Regulated power supply is provided；Oscillator is for providing accurately clock signal；Stretch circuit is used for the pulse of expanding clock signal
Width；Voltage-tracing sampling/blanking signal sample circuit is for obtaining voltage signal/blanking signal, on the one hand by above-mentioned signal
It is sent into the Width funtion floating tracking to adjust in circuit, above-mentioned signal is on the other hand sent into phase assignments superposing control circuit
In；On the one hand integrated logic control circuit obtains control signal from the intelligent control interface, on the other hand to the phase
It distributes superposing control circuit and multichannel independence constant-current drive circuit provides control signal；Vf value identification circuit is used for from multichannel independence
Feedback voltage signal is identified in constant-current drive circuit；Phase assignments superposing control circuit samples/disappears according to the voltage-tracing
The feedback voltage signal and synthesis that voltage signal/blanking signal of hidden signal sampling circuit output, Vf value identification circuit export
The control parameter of logic control circuit output realizes the distribution and adjusting of phase；Width funtion float tracking adjust circuit for realizing
The voltage of multichannel independence constant-current drive circuit is adjusted；Protect circuit for realizing power protection.
Optionally, in a kind of above-mentioned LED light based on multichannel independence constant current driving, multichannel independence constant-current drive circuit includes
The integrated chip of model TPS-28Y.1, the power interface of the integrated chip connect the Width funtion floating tracking and adjust circuit
Output end, the control parameter interface of the integrated chip connect the phase assignments superposing control circuit and integrated logic control electricity
The output end on road, the output end of the integrated chip are provided with 4 groups of LED lamp bead driving interfaces.
Optionally, in a kind of above-mentioned LED light based on multichannel independence constant current driving, LED lamp bead driving interface described in every group
Including positive and negative two pins, positive pin is connect with the driving of the anode all the way end of the integrated chip, one electricity of negative pin concatenation
The driving of cathode all the way corresponding with the integrated chip end connection, connects between every group of positive and negative two pin after sensing unit
There is a capacity cell, the cathode driving end of integrated chip is connect by a diode with one end of capacity cell C6, capacity cell
The cathode of another termination power interface of C6, anode driving one current-limiting resistance of end of integrated chip are followed by the power supply and connect
The anode of mouth.
Optionally, in a kind of above-mentioned LED light based on multichannel independence constant current driving, the power interface of integrated chip is inputted
24V stable dc power supply.
Beneficial effects of the present invention: a kind of LED light based on multichannel independence constant current driving provided by the invention, including lamp
Frame, LED component and control circuit, control circuit include electroless constant voltage source module and multichannel independence constant-current drive circuit, nothing
The input for being electrolysed constant voltage source module terminates AC input, and the output end of the electroless constant voltage source module drives to multichannel independence constant current
Dynamic circuit provides constant voltage source, and LED component is connected in series by the grouping of plurality of LEDs lamp bead, multichannel independence constant current driving electricity
Road independently concatenates one group of LED lamp bead per output end group all the way, so that each paths of LEDs lamp bead independence constant current drives, multichannel
Regulated and controled between LED lamp bead using split-phase, the calorific value of LED light is effectively reduced, reduces the requirement to lamp body radiator, while split-phase
Regulation, reduces the fluctuation depth of LED light, overcomes stroboscopic phenomenon, lamp body structure is simple, and easy for installation, intensity of illumination is steady
It is fixed, long service life.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the LED light driven the present invention is based on multichannel independence constant current；
Fig. 2 is the control circuit operation schematic diagram of the LED light driven the present invention is based on multichannel independence constant current；
Fig. 3 is the control circuit block diagram of the LED light driven the present invention is based on multichannel independence constant current；
Fig. 4 is the circuit diagram of the control circuit of the LED light driven the present invention is based on multichannel independence constant current.
Appended drawing reference:
1- lamp bracket；2-LED component；3- radiating wing；4- installs card slot；5- wiring channel；6- thermovent；7- strip groove.
Specific embodiment
It is described in detail below in conjunction with embodiment of the attached drawing to technical solution of the present invention.Following embodiment is only used for
Clearly illustrate technical solution of the present invention, therefore be intended only as example, and cannot be used as a limitation and limit protection of the invention
Range.
Embodiment 1:
Referring to Fig.1-4, a kind of LED light based on multichannel independence constant current driving, including lamp bracket 1, LED component 2 and control electricity
Road；The rectangle installing frame for installing LED component 2 is provided among lamp bracket 1, extend shape outward for the two sides of the rectangle installing frame
At radiating wing 3, one end of rectangle installing frame is provided with installation card slot 4, a circle cloth is additionally provided with around rectangle installing frame
Line passage 5；Radiating wing 3 is triangular in shape, is provided with thermovent 6 and strip groove 7 on the radiating wing 3；Control circuit includes nothing
It is electrolysed constant voltage source module and multichannel independence constant-current drive circuit, the input of electroless constant voltage source module terminates AC input, should
The output end of electroless constant voltage source module provides constant voltage source to multichannel independence constant-current drive circuit；Electroless constant pressure electricity
Source module includes the first voltage-stablizer, the second voltage-stablizer, oscillator, stretch circuit, phase assignments superposing control circuit, wide electricity
Pressure floats to track and adjusts circuit, voltage-tracing sampling/blanking signal sample circuit, Vf value identification circuit, circuit, synthesis protected to patrol
Collect control circuit and intelligent control interface circuit；Second voltage-stablizer is linear voltage regulator；First voltage-stablizer and the line
Property voltage-stablizer for providing regulated power supply；Oscillator is for providing accurately clock signal；Stretch circuit is for when extending
The pulse width of clock signal；Voltage-tracing sampling/blanking signal sample circuit is for obtaining voltage signal/blanking signal, a side
Above-mentioned signal is sent into the Width funtion floating tracking and adjusted in circuit by face, on the other hand folds above-mentioned signal feeding phase assignments
Add in control circuit；On the one hand integrated logic control circuit obtains control signal from the intelligent control interface, on the other hand
Control signal is provided to the phase assignments superposing control circuit and multichannel independence constant-current drive circuit；Vf value identification circuit is used for
Feedback voltage signal is identified from multichannel independence constant-current drive circuit；Phase assignments superposing control circuit according to the voltage with
The feedback voltage signal that track sampling/voltage signal/blanking signal of blanking signal sample circuit output, Vf value identification circuit export
And the control parameter of integrated logic control circuit output realizes the distribution and adjusting of phase；Width funtion, which floats to track, adjusts circuit
It is adjusted for realizing the voltage of multichannel independence constant-current drive circuit；Protect circuit for realizing power protection；Multichannel independence constant current
Driving circuit includes the integrated chip of model TPS-28Y.1, the power interface of the integrated chip connect the Width funtion float with
Track adjust circuit output end, the control parameter interface of the integrated chip connect the phase assignments superposing control circuit with it is described comprehensive
The output end of logical control circuit, the output end of the integrated chip are provided with 4 groups of LED lamp bead driving interfaces, integrated chip
Power interface inputs 24V stable dc power supply；LED component 2 is connected in series by the grouping of plurality of LEDs lamp bead, multichannel independence constant current
Driving circuit independently concatenates one group of LED lamp bead per output end group all the way；Every group of LED lamp bead driving interface includes positive and negative
Two pins, positive pin are connect with the driving of the anode all the way end of the integrated chip, and negative pin concatenates an inductance element (figure
Shown in inductance L1, L2, L3, L4) corresponding with the integrated chip cathode all the way driving end connection afterwards, it is positive and negative at every group
It is connected between two pins a capacity cell (capacitor C2, C3, C4, C5 as shown in the figure), the cathode driving end warp of integrated chip
It crosses a diode (diode D1, D2, D3, D4 as shown in the figure) to connect with one end of capacity cell C6, capacity cell C6's is another
Terminate the cathode of the power interface, anode driving one current-limiting resistance of end of integrated chip (resistance R1, R2 as shown in the figure, R3,
R4) it is followed by the anode of the power interface.
Preferably, in specific implementation, in order to keep heat dissipation effect more preferable, radiating wing 3 is designed as triangle, and is radiating
It is additionally provided with multiple thermovents 6 and strip groove 7 on the wing 3, further enhances heat sinking function.
LED light based on multichannel independence constant current driving of the invention is made of lamp bracket, LED component and control circuit, wherein
Control circuit include electroless constant voltage source module and multichannel independence constant-current drive circuit, electroless constant voltage source module
Input termination alternating current input, the output end of the electroless constant voltage source module provide constant to multichannel independence constant-current drive circuit
Voltage source, LED component is connected in series by the grouping of plurality of LEDs lamp bead, multichannel independence constant-current drive circuit per exporting all the way
End group independently concatenates one group of LED lamp bead, so that each paths of LEDs lamp bead independence constant current drives, uses between LED multi-path lamp bead
Split-phase regulation, is effectively reduced the calorific value of LED light, reduces the requirement to lamp body radiator, while split-phase regulates and controls, and reduces LED
The fluctuation depth of light, overcomes stroboscopic phenomenon.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should manage
Solution: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of skills
Art feature is equivalently replaced；And these are modified or replaceed, each reality of the present invention that it does not separate the essence of the corresponding technical solution
The range of a technical solution is applied, should all be covered in the claim of the utility model and the range of specification.
Claims (6)
1. a kind of LED light based on multichannel independence constant current driving, which is characterized in that including lamp bracket, LED component and control circuit,
The control circuit includes electroless constant voltage source module and multichannel independence constant-current drive circuit, the electroless constant voltage source mould
The input of block terminates AC input, and the output end of the electroless constant voltage source module is provided to the multichannel independence constant-current drive circuit
Constant voltage source, the LED component are connected in series by the grouping of plurality of LEDs lamp bead, the multichannel independence constant-current drive circuit
Independently concatenate one group of LED lamp bead per output end group all the way；
The electroless constant voltage source module includes the first voltage-stablizer, the second voltage-stablizer, oscillator, stretch circuit, phase
Distribute superposing control circuit, Width funtion floats to track and adjusts circuit, voltage-tracing sampling/blanking signal sample circuit, the knowledge of Vf value
Other circuit, protection circuit, integrated logic control circuit and intelligent control interface circuit；Second voltage-stablizer is linear voltage stabilization
Device；
First voltage-stablizer and the linear voltage regulator are for providing regulated power supply；
The oscillator is for providing accurately clock signal；
The stretch circuit is used for the pulse width of expanding clock signal；
Voltage-tracing sampling/blanking signal the sample circuit is for obtaining voltage signal/blanking signal, on the one hand by above-mentioned letter
It number is sent into Width funtion tracking of floating to adjust in circuit, above-mentioned signal is on the other hand sent into phase assignments superposing control circuit
In；
On the one hand the integrated logic control circuit obtains control signal from the intelligent control interface, on the other hand to described
Phase assignments superposing control circuit and multichannel independence constant-current drive circuit provide control signal；
The Vf value identification circuit is for identifying feedback voltage signal from the multichannel independence constant-current drive circuit；
The phase assignments superposing control circuit is believed according to the voltage-tracing sampling/blanking signal sample circuit output voltage
Number/blanking signal, Vf value identification circuit output feedback voltage signal and integrated logic control circuit output control parameter
Realize the distribution and adjusting of phase；
The Width funtion floats tracking adjusting circuit for realizing the voltage adjusting of multichannel independence constant-current drive circuit；
The protection circuit is for realizing power protection.
2. the LED light according to claim 1 based on multichannel independence constant current driving, which is characterized in that among the lamp bracket
It is provided with the rectangle installing frame for installing LED component, the two sides of the rectangle installing frame extend form radiating wing outward, in institute
The one end for stating rectangle installing frame is provided with installation card slot, and a circle wiring channel is additionally provided with around the rectangle installing frame.
3. the LED light according to claim 2 based on multichannel independence constant current driving, which is characterized in that the radiating wing is in
Triangle is provided with thermovent and strip groove on the radiating wing.
4. the LED light according to claim 1 based on multichannel independence constant current driving, which is characterized in that the multichannel is independent
Constant-current drive circuit includes the integrated chip of model TPS-28Y.1, and it is floating that the power interface of the integrated chip connects the Width funtion
Motion tracking adjusts the output end of circuit, and the control parameter interface of the integrated chip meets the phase assignments superposing control circuit and institute
The output end of integrated logic control circuit is stated, the output end of the integrated chip is provided with 4 groups of LED lamp bead driving interfaces.
5. the LED light according to claim 4 based on multichannel independence constant current driving, which is characterized in that LED light described in every group
Pearl driving interface includes positive and negative two pins, and positive pin is connect with the driving of the anode all the way end of the integrated chip, and cathode draws
Foot concatenates the driving of cathode all the way corresponding with the integrated chip end connection after an inductance element, draws at every group positive and negative two
A capacity cell is connected between foot, one end of a diode and capacity cell C6 is passed through at the cathode driving end of the integrated chip
Connection, the cathode of another termination power interface of capacity cell C6, anode driving one current limliting of end of the integrated chip
Resistance is followed by the anode of the power interface.
6. the LED light according to claim 4 or 5 based on multichannel independence constant current driving, which is characterized in that the integrated core
The power interface of piece inputs 24V stable dc power supply.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610794862.5A CN107795862B (en) | 2016-08-31 | 2016-08-31 | LED light based on multichannel independence constant current driving |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610794862.5A CN107795862B (en) | 2016-08-31 | 2016-08-31 | LED light based on multichannel independence constant current driving |
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| CN107795862A CN107795862A (en) | 2018-03-13 |
| CN107795862B true CN107795862B (en) | 2019-10-29 |
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| CN108488642A (en) * | 2018-05-25 | 2018-09-04 | 深圳市明微电子股份有限公司 | A kind of light emitting diode illuminating apparatus and light emitting diode |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141223A (en) * | 2011-04-26 | 2011-08-03 | 雍徽 | High-power LED (Light Emitting Diode) light source assembled street lamp and tunnel lamp |
| CN202652639U (en) * | 2012-06-13 | 2013-01-02 | 汤兆林 | Driving power supply circuit free of electrolytic capacitor |
| CN203151798U (en) * | 2012-12-28 | 2013-08-21 | 广州市雷格斯光电科技有限公司 | Multi-mode light modulation and multi-path independent constant-current drive circuit for LED illumination |
| CN203352863U (en) * | 2013-04-23 | 2013-12-18 | 深圳市灵星雨科技开发有限公司 | New LED lighting system |
| CN203368850U (en) * | 2013-07-18 | 2013-12-25 | 张新安 | Durable LED lamp driving power supply without electrolytic capacitor |
| CN103929851A (en) * | 2014-03-31 | 2014-07-16 | 深圳市九洲光电科技有限公司 | LED circuit with dimming function and color matching function |
| CN105072735A (en) * | 2015-06-10 | 2015-11-18 | 晶正照明科技有限公司 | Drive circuit for raising LED visual lighting effect |
-
2016
- 2016-08-31 CN CN201610794862.5A patent/CN107795862B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141223A (en) * | 2011-04-26 | 2011-08-03 | 雍徽 | High-power LED (Light Emitting Diode) light source assembled street lamp and tunnel lamp |
| CN202652639U (en) * | 2012-06-13 | 2013-01-02 | 汤兆林 | Driving power supply circuit free of electrolytic capacitor |
| CN203151798U (en) * | 2012-12-28 | 2013-08-21 | 广州市雷格斯光电科技有限公司 | Multi-mode light modulation and multi-path independent constant-current drive circuit for LED illumination |
| CN203352863U (en) * | 2013-04-23 | 2013-12-18 | 深圳市灵星雨科技开发有限公司 | New LED lighting system |
| CN203368850U (en) * | 2013-07-18 | 2013-12-25 | 张新安 | Durable LED lamp driving power supply without electrolytic capacitor |
| CN103929851A (en) * | 2014-03-31 | 2014-07-16 | 深圳市九洲光电科技有限公司 | LED circuit with dimming function and color matching function |
| CN105072735A (en) * | 2015-06-10 | 2015-11-18 | 晶正照明科技有限公司 | Drive circuit for raising LED visual lighting effect |
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