CN205793519U - A kind of three-phase alternating-current powered is without stroboscopic ACLED light fixture - Google Patents
A kind of three-phase alternating-current powered is without stroboscopic ACLED light fixture Download PDFInfo
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- CN205793519U CN205793519U CN201620537206.2U CN201620537206U CN205793519U CN 205793519 U CN205793519 U CN 205793519U CN 201620537206 U CN201620537206 U CN 201620537206U CN 205793519 U CN205793519 U CN 205793519U
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- wave rectification
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Abstract
The utility model proposes a kind of three-phase alternating-current powered without stroboscopic ACLED light fixture, including: three phase full wave rectification bridge；Current limiting element, connects with three phase full wave rectification bridging；LED light emission device, connects with current limiting element and three phase full wave rectification bridging；Wherein, three phase full wave rectification bridge is connected with the three phase sine AC-powered power supply that phase place mutual deviation is 120 °.This utility model beneficial effect: the phase compensation characteristic making full use of three-phase alternating current eliminates harmful stroboscopic, the Rectified alternating current vibration frequency obtained after three-phase alternating current all wave rectification is promoted to 300Hz, the power-supply fluctuation degree of depth is dropped to 7.1 by 100, even if not taking any filtering measures directly to light LED light emission device, its scintillation index has been less than the imperceptible limit value of the 9.6 of IEEE PAR1789 regulation the most；Not having capacitor and inductor element the most in circuit, power factor is high, and all elements do not have life-span short slab, and the service life of LED lamp can be greatly improved.
Description
Technical field
This utility model relates to a kind of three-phase alternating-current powered without stroboscopic ACLED light fixture.
Background technology
The LED illumination technology risen in recent years, develops fast because of lamp bead luminous efficiency height, energy-conserving and environment-protective, theoretical life-span length
Suddenly, but after producing concrete LED illumination lamp, these advantages are just had a greatly reduced quality.The DCLED of direct current supply, it drives power supply
In main filter element electrolysis condenser, the life-span, far below LED lamp bead and other electronic devices and components, is light fixture reliability
Short slab so that the advantage of LED life length is difficult to embody in the product.And directly use the nothing of industrial-frequency alternating current commutation supply voltage to drive
Dynamic ACLED, is difficult to again overcome the power frequency of 50～100Hz to flash, because the forward C-V characteristic of LED, so in identical power frequency
Under alternating current power supply or pulsafeeder drive, the scintillation of a lot of LED illumination output of products light is substantially more than conventional light source so that
The use occasion of ACLED light fixture is greatly limited.To this end, a kind of no electrolytic capacitor device of research and development, directly use industrial frequency AC
Electric rectification is powered, long working life, eliminates the ACLED light fixture of harmful stroboscopic, for breaking through the technical bottleneck of LED illumination, promotes
Its widespread development has great importance.
Utility model content
The utility model proposes a kind of three-phase alternating-current powered without stroboscopic ACLED light fixture, solve in prior art above-mentioned
Problem.
The technical solution of the utility model is achieved in that
A kind of three-phase alternating-current powered without stroboscopic ACLED light fixture, including:
Three phase full wave rectification bridge；
Current limiting element, connects with described three phase full wave rectification bridging；
LED light emission device, connects with described current limiting element and described three phase full wave rectification bridging；
Wherein, three phase full wave rectification bridge is connected with the three phase sine AC-powered power supply that phase place mutual deviation is 120 °.
Further, described three phase full wave rectification bridge includes:
First diode, described first diode cathode is connected with described current limiting element；
Second diode, described second diode cathode is connected with described first diode cathode, described second diode
Positive pole is connected with described LED light emission device；
First power supply connects end, is arranged between described first diode and described second diode；
3rd diode, described 3rd diode cathode is connected with described current limiting element；
4th diode, described 4th diode cathode is connected with described 3rd diode cathode, described 4th diode
Positive pole is connected with described LED light emission device；
Second power supply connects end, is arranged between described 3rd diode and described 4th diode；
5th diode, described 5th diode cathode is connected with described current limiting element；
6th diode, described 6th diode cathode is connected with described 5th diode cathode, described 6th diode
Positive pole is connected with described LED light emission device；
3rd power supply connects end, is arranged between described 5th diode and described 6th diode.
Preferably, described current limiting element is constant current IC module.
Preferably, described current limiting element is current-limiting resistance.
Further, described LED light emission device includes the LED wafer of some series connection.
Preferably, the voltage of described power supply is 24～380V.
The beneficial effects of the utility model are:
Three-phase alternating-current powered described in the utility model, without stroboscopic ACLED light fixture, takes full advantage of the phase of three-phase alternating current
Position compensation characteristic eliminates harmful stroboscopic, and after three-phase alternating current all wave rectification, the Rectified alternating current vibration frequency obtained is promoted to
300Hz, the power-supply fluctuation degree of depth is dropped to 7.1 by 100, lights LED light emission device even if not taking any filtering measures to go directly,
Its scintillation index has been less than the imperceptible limit value of the 9.6 of IEEE PAR1789 regulation the most, can be referred to as without stroboscopic；Separately
Outward, owing to not having capacitor and inductor element in circuit, power factor is high, and all elements do not have life-span short slab, can be greatly improved
The service life of LED lamp.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, the accompanying drawing in describing below is only
It is embodiments more of the present utility model, for those of ordinary skill in the art, before not paying creative work
Put, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is a kind of three-phase alternating-current powered of this utility model structured flowchart without stroboscopic ACLED light fixture；
Fig. 2 is a kind of three-phase alternating-current powered of this utility model circuit theory diagrams without stroboscopic ACLED light fixture.
In figure:
1, three phase full wave rectification bridge；11, the first diode；12, the second diode；13, the first power supply connects end；
14, the 3rd diode；15, the 4th diode；16, the second power supply connects end；17, the 5th diode；18, the six or two pole
Pipe；19, the 3rd power supply connects end；2, current limiting element；3, LED light emission device；4, power supply.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under making creative work premise
The every other embodiment obtained, broadly falls into the scope of this utility model protection.
As shown in Figure 1-2, a kind of three-phase alternating-current powered described in the utility model without stroboscopic ACLED light fixture, including:
Three phase full wave rectification bridge 1；
Current limiting element 2, is connected with three phase full wave rectification bridge 1；
LED light emission device 3, is connected with current limiting element 2 and three phase full wave rectification bridge 1；
Wherein, three phase full wave rectification bridge 1 is connected with the three phase sine AC-powered power supply 4 that phase place mutual deviation is 120 °.
Wherein, described three phase full wave rectification bridge 1 may include that
First diode 11, the first diode 11 negative pole is connected with current limiting element 2；
Second diode 12, the second diode 12 negative pole and the first diode 11 positive pole connect, the second diode 12 positive pole
It is connected with LED light emission device 3；
First power supply connects end 13, is arranged between the first diode 11 and the second diode 12；
3rd diode 14, the 3rd diode 14 negative pole is connected with current limiting element 2；
4th diode 15, the 4th diode 15 negative pole and the 3rd diode 14 positive pole connect, the 4th diode 15 positive pole
It is connected with LED light emission device 3；
Second power supply connects end 16, is arranged between the 3rd diode 14 and the 4th diode 15；
5th diode 17, the 5th diode 17 negative pole is connected with current limiting element 2；
6th diode 18, the 6th diode 18 negative pole and the 5th diode 17 positive pole connect, the 6th diode 18 positive pole
It is connected with LED light emission device 3；
3rd power supply connects end 19, is arranged between the 5th diode 17 and the 6th diode 18.
Wherein it is preferred to, described current limiting element 2 is constant current IC module.
Wherein it is preferred to, described current limiting element 2 is current-limiting resistance.
Wherein, described LED light emission device 3 includes the LED wafer of some series connection.
Wherein it is preferred to, the voltage of described power supply 4 is 24～380V.
Specifically, as a example by 380V three-phase alternating current, after carrying out all wave rectification, obtaining peak value is 537V, and meansigma methods is
514V, ripple frequency is 300Hz, and ripple amplitude is the Rectified alternating current of 71V, in order to drive LED light emission device 3.This practicality is new
Three-phase alternating-current powered described in type without stroboscopic ACLED light fixture by three phase full wave rectification bridge 1, constant flow element or current limiting element, and
The COB lamp bead being made up of the LED wafer of multiple series connection forms, and is in series mutually and composes in parallel LED luminescence between multiple COB lamp bead
Device 3, to mate driving DC voltage.
For LED light source and the stroboscopic of light fixture, domestic there is no concrete standard, but the U.S. is at IEEE PAR1789, and " LED shines
The potential health effect of bright flicker " in define fluctuation the degree of depth limit value, numerical value is in turn divided into from small to large without influence area
With low-risk region, then there is harmful serious stroboscopic higher than low-risk region；The fluctuation degree of depth is defined as by IEEE PAR1789
The difference of minimum and maximum brightness is multiplied by 100 again divided by minimum and maximum brightness sum.The fluctuation degree of depth and the letter driving power frequency
Number relation is linear change, and the higher limit in low-risk region is flicker frequency × 0.08, and the higher limit without influence area is sudden strain of a muscle
Bright frequency × 0.032.
Three-phase alternating-current powered described in the utility model, without stroboscopic ACLED light fixture, takes full advantage of the phase of three-phase alternating current
Position compensation characteristic eliminates harmful stroboscopic, and after three-phase alternating current all wave rectification, the Rectified alternating current vibration frequency obtained is promoted to
300Hz, the power-supply fluctuation degree of depth is dropped to 7.1 by 100, lights LED light emission device even if not taking any filtering measures to go directly,
Its scintillation index has been less than the imperceptible limit value of the 9.6 of IEEE PAR1789 regulation the most, can be referred to as without stroboscopic；Separately
Outward, owing to not having capacitor and inductor element in circuit, power factor is high, and all elements do not have life-span short slab, can be greatly improved
The service life of LED lamp.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all at this
Within the spirit of utility model and principle, any modification, equivalent substitution and improvement etc. made, should be included in this utility model
Protection domain within.
Claims (6)
1. a three-phase alternating-current powered is without stroboscopic ACLED light fixture, it is characterised in that including:
Three phase full wave rectification bridge (1)；
Current limiting element (2), is connected with described three phase full wave rectification bridge (1)；
LED light emission device (3), is connected with described current limiting element (2) and described three phase full wave rectification bridge (1)；
Wherein, three phase full wave rectification bridge (1) is connected with three phase sine AC-powered power supply (4) that phase place mutual deviation is 120 °.
Three-phase alternating-current powered the most according to claim 1 is without stroboscopic ACLED light fixture, it is characterised in that described three-phase full-wave
Rectifier bridge (1) including:
First diode (11), described first diode (11) negative pole is connected with described current limiting element (2)；
Second diode (12), described second diode (12) negative pole is connected with described first diode (11) positive pole, and described
Two diodes (12) positive pole is connected with described LED light emission device (3)；
First power supply connects end (13), is arranged between described first diode (11) and described second diode (12)；
3rd diode (14), described 3rd diode (14) negative pole is connected with described current limiting element (2)；
4th diode (15), described 4th diode (15) negative pole is connected with described 3rd diode (14) positive pole, and described
Four diodes (15) positive pole is connected with described LED light emission device (3)；
Second power supply connects end (16), is arranged between described 3rd diode (14) and described 4th diode (15)；
5th diode (17), described 5th diode (17) negative pole is connected with described current limiting element (2)；
6th diode (18), described 6th diode (18) negative pole is connected with described 5th diode (17) positive pole, and described
Six diodes (18) positive pole is connected with described LED light emission device (3)；
3rd power supply connects end (19), is arranged between described 5th diode (17) and described 6th diode (18).
Three-phase alternating-current powered the most according to claim 1 is without stroboscopic ACLED light fixture, it is characterised in that described current limiting element
(2) it is constant current IC module.
Three-phase alternating-current powered the most according to claim 1 is without stroboscopic ACLED light fixture, it is characterised in that described current limiting element
(2) it is current-limiting resistance.
Three-phase alternating-current powered the most according to claim 1 is without stroboscopic ACLED light fixture, it is characterised in that described LED luminescence fills
Put (3) and include the LED wafer of some series connection.
Three-phase alternating-current powered the most according to claim 1 is without stroboscopic ACLED light fixture, it is characterised in that described power supply
(4) voltage is 24～380V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620537206.2U CN205793519U (en) | 2016-06-03 | 2016-06-03 | A kind of three-phase alternating-current powered is without stroboscopic ACLED light fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620537206.2U CN205793519U (en) | 2016-06-03 | 2016-06-03 | A kind of three-phase alternating-current powered is without stroboscopic ACLED light fixture |
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|---|---|
| CN205793519U true CN205793519U (en) | 2016-12-07 |
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|---|---|---|---|
| CN201620537206.2U Expired - Fee Related CN205793519U (en) | 2016-06-03 | 2016-06-03 | A kind of three-phase alternating-current powered is without stroboscopic ACLED light fixture |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105934039A (en) * | 2016-06-15 | 2016-09-07 | 北京宇环通高科技有限公司 | Apparatus and method for supplying power to LED illuminating lamp by using three-phase alternating current power supply |
| CN108811233A (en) * | 2017-05-05 | 2018-11-13 | 东莞艾笛森光电有限公司 | Low harmonics distortion LED driving circuit |
| CN110691450A (en) * | 2019-09-19 | 2020-01-14 | 浙江大学 | High-power low-strobe alternating-current direct-connection LED driving method and device and application |
-
2016
- 2016-06-03 CN CN201620537206.2U patent/CN205793519U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105934039A (en) * | 2016-06-15 | 2016-09-07 | 北京宇环通高科技有限公司 | Apparatus and method for supplying power to LED illuminating lamp by using three-phase alternating current power supply |
| CN108811233A (en) * | 2017-05-05 | 2018-11-13 | 东莞艾笛森光电有限公司 | Low harmonics distortion LED driving circuit |
| US10694595B2 (en) | 2017-05-05 | 2020-06-23 | Edison Opto (Dongguan) Co., Ltd. | Light emitting diode driving circuit with low harmonic distortion |
| CN110691450A (en) * | 2019-09-19 | 2020-01-14 | 浙江大学 | High-power low-strobe alternating-current direct-connection LED driving method and device and application |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20190603 |
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| CF01 | Termination of patent right due to non-payment of annual fee |