CN102026437A - Modular alternating current light-emitting diode (LED) luminous circuit - Google Patents
Modular alternating current light-emitting diode (LED) luminous circuit Download PDFInfo
- Publication number
- CN102026437A CN102026437A CN2009101529399A CN200910152939A CN102026437A CN 102026437 A CN102026437 A CN 102026437A CN 2009101529399 A CN2009101529399 A CN 2009101529399A CN 200910152939 A CN200910152939 A CN 200910152939A CN 102026437 A CN102026437 A CN 102026437A
- Authority
- CN
- China
- Prior art keywords
- led
- module
- positive
- current
- negative electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000758 substrate Substances 0.000 claims description 17
- 239000000178 monomer Substances 0.000 claims description 11
- 229910010293 ceramic material Inorganic materials 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 6
- 239000004065 semiconductor Substances 0.000 claims description 6
- 238000003491 array Methods 0.000 claims description 3
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 230000005496 eutectics Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Landscapes
- Led Devices (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses a modular alternating current light-emitting diode (LED) luminous circuit, which consists of a bridge circuit formed by connecting five LED modules with positive and negative electrode pads, wherein any two LED modules of the four LED modules are connected in series, and the other two LED modules are connected in series; serial LED module combinations are connected in parallel to form four bridge arms; a connecting point between two LED modules forming a serial LED module group in the four bridge arms is taken as an alternating current input end for connecting two alternating current power supplies; a connecting point formed in the way that two serial LED module groups on the four bridge arms are connected in parallel is taken as a direct output end; a fifth module is connected between two direct current output ends; a negative direct current output end is connected with the positive electrode of the fifth module when the two serial LED module groups on the bridge arm are connected in parallel; and a positive direct current output end is connected with the negative electrode of the fifth module when the two serial LED module groups on the bridge arm are connected in parallel. The LED module can be directly driven to emit light by an alternating current power supply without additional rectifier, so that reduction in manufacturing cost is facilitated.
Description
Technical field
The present invention relates to a kind of LED illuminating circuit, particularly a kind of that connect and compose by led module, make the luminous circuit of the direct driving LED of alternating current.
Background technology
Led light source as green, energy-conservation, power saving, long-life the 4th generation lighting and be a dark horse, extensively be subjected to pay close attention to, like a raging fire developing rapidly.Present LED lighting source is low-voltage (V
F=2 → 3.6V), big electric current (I
FThe semiconductor device of=200 → 1500mA) work must provide the suitable direct current could be normally luminous.
Because the power supply that our normal lighting uses is High Level AC Voltage (AC100-220V), so must use the technology of step-down to obtain lower voltage, commonly used is transformer or Switching Power Supply step-down, then alternating current (AC) is transformed into direct current (DC), is transformed into constant-current source again and just can impels led light source luminous.Therefore the system applies scheme of DC driven led light source must be: transformer+rectification (or Switching Power Supply)+constant-current source.
Present DC LED has obtained the luminous technology of general popularization, low-voltage DC driven (being that DC drives) led light source in DC power-supply system such as storage battery more and more ripe.
But at ac power supply system, particularly must be in the mains-supplied system through step-down, rectifying conversion becomes direct current supply normally to use.Not only improve the application cost of LED, also increased the volume of LED, increased the loss that exchange conversion becomes direct current.Very limited as space for the light fixture of E27 standard screw socket, just be difficult to settle transformer+rectification (or Switching Power Supply)+constant-current source.No matter be transformer+rectification or Switching Power Supply step-down simultaneously, all can there be a certain amount of loss in system.DC LED is depleted at the electric power that exchanges, has approximately during conversion between the direct current 15～30%, and system effectiveness is difficult to accomplish more than 90%.Make LED be subjected to very big restriction as the popularization and application of lighting source.If can be with the direct driving LED light source luminescent of alternating current (being AC), the system applies scheme will be simplified greatly, and system effectiveness will be easy to reach more than 90%.
Can direct LED with AC driving (promptly being called AC LED) be arranged, particularly the led light source device of civil power driving be a problem that must solve.
Summary of the invention
The present invention is directed to deficiency of the prior art, propose a kind of simple in structure can be by the illuminating circuit structure of the direct driving LED of alternating current, this illuminating circuit is to connect and compose with five high voltage-small current led modules that have the positive and negative electrode pad according to electrical bridge principle.Because LED itself is a kind of semiconductor device of unidirectional conducting, therefore, when the alternating current positive half cycle current is imported, be driven during the positive half cycle of the led module on two relative brachium pontis and light, when the alternating current negative half-cycle current is imported, be driven during the led module negative half period on two relative brachium pontis in addition and light, and the led module between two dc output ends keeps full-time to light because of electric current flows through always.Therefore, the present invention need not other rectifier, transformer, and it is luminous that led module is directly lighted by the AC power driving, helps to reduce cost of manufacture.
Technical scheme of the present invention is achieved in that
A kind of modular alternating-current LED light-emitting circuit, this illuminating circuit is the bridge circuit that is connected and composed by five led modules that have a positive and negative electrode pad, wherein, the positive and negative electrode annexation of four led modules be according to as get off to carry out: will be wherein any two led modules connect, two led modules are also connected in addition, and the led module combination after will connecting then composes in parallel four brachium pontis; Form tie point between two led modules of series LED module group in four brachium pontis as two ac input ends that connect for AC power, the tie point of two series LED module groups parallel connection is as dc output end on four brachium pontis, connect the 5th module between two dc output ends, the negative pole dc output end connected the positive electrode of the 5th module when two series LED module groups were in parallel on the brachium pontis, and the anodal dc output end when two series LED module groups are in parallel on the brachium pontis connects the negative electrode of the 5th module.
In order further to improve light efficiency, as preferably, described led module be by after a plurality of led chip diamond arraies with the metallic conduction material module that have positive and negative electrode pad of eutectic on same substrate of connecting.
In order further to improve light efficiency, as preferably, described led module is the high voltage-small current led chip of being made by a plurality of LED PN junctions series connection that has the positive and negative electrode pad.
In order further to improve light efficiency, as preferably, described led module is to be connected on the same module that has the positive and negative electrode pad on heat sink by a plurality of monomer LED with the metallic conduction material.
In order to adapt to the needs that light source is made, as preferably, the quantity that constitutes the led chip of each led module on four brachium pontis is identical.
In order to adapt to the needs that light source is made, as preferably, the quantity that constitutes the LEDPN knot of each led module on four brachium pontis is identical.
In order to adapt to the needs that light source is made, as preferably, the quantity that constitutes the monomer LED of each led module on four brachium pontis is identical.
In order to adapt to the needs that light source is made, as preferably, described substrate be shaped as rectangle or fan-shaped, be provided with the positive and negative electrode pad of mutually insulated at the two ends of substrate, the positive and negative electrode pad is electrically connected with adjacent separately led chip respectively.The quantity of led chip can be determined according to the needs of illuminating circuit and the size of substrate on the substrate, and the led module positive and negative electrode pad of mutually insulated has guaranteed the security performance of led module.
In order to adapt to the needs that light source is made, as preferably, the described heat sink rectangle or fan-shaped that is shaped as is provided with the positive and negative electrode pad of mutually insulated at heat sink two ends, and the positive and negative electrode pad is electrically connected with adjacent separately monomer LED respectively.The quantity of led chip can be determined according to the needs of illuminating circuit and the size of substrate on the substrate, and the led module positive and negative electrode pad of mutually insulated has guaranteed the security performance of led module.
As preferably, described substrate is to be made by high-thermal conductive metal or ceramic material, and its thickness is less than 2mm.The thin type substrate that has adopted metal or ceramic material to make more helps the LED heat radiation, prolongs its useful life.
As preferably, described heat sink be to make by high-thermal conductive metal or ceramic material, its thickness is less than 2mm.The thin type that has adopted metal or ceramic material to make is heat sink more to help the LED heat radiation, prolongs its useful life.
In order to make alternating voltage in when fluctuation, the operating current of LED changes and is controlled at normal operating state, and as preferably, at least one ac input end of this bridge-type illuminating circuit is serially connected with the semiconductor current limiter device.
As preferably, described semiconductor current limiter device is any device in electric capacity, inductance or the resistance.
As preferably, the quantity of led chip that constitutes each led module on four brachium pontis is more than or equal to 3.
As preferably, the quantity of LED PN junction that constitutes each led module on four brachium pontis is more than or equal to 3.
As preferably, the quantity of monomer LED that constitutes each led module on four brachium pontis is more than or equal to 3.
The advantage that has adopted the present invention of technique scheme to have is:
1, the present invention has expanded the LED electric power system from the DC driven to the AC driving, also can not connect cisco unity malfunction on the contrary owing to the polarity of voltage of LED device simultaneously when practical application.Particularly save dc driver, further reduced the cost of manufacture of AC led light source device.About 15～30% electric power was depleted when DC LED changed between interchange, direct current, and directly the driving LED illuminating circuit is luminous with alternating current (AC), and the system applies scheme will be simplified greatly, and system effectiveness can reach more than 90% very like a cork.
2, lighting source of the present invention is that form in when encapsulation with prefabricated led module can be made by the illuminating circuit of AC driving, but illuminating circuit makes AC electric current two-way admittance, and only needing two lead-in wires to import AC power can luminous work.
3, alternating-current LED light-emitting circuit part of the present invention replaces illumination mode, and has utilized the LED outage that the characteristic of the continuous light of twilight sunset is arranged, and makes the almost imperceptible luminous interruption that has of human eye, and LED replaces luminously can reduce heat, and useful life is longer than the DC LED life-span.
Description of drawings
Fig. 1 is the principle schematic of LED illuminating circuit of the present invention;
Fig. 2 is the structural representation of led module in the embodiment of the invention one;
Fig. 3 is the structural representation of led module in the embodiment of the invention three.
Embodiment
The specific embodiment of the present invention is as follows:
Embodiment one: as shown in Figure 1, a kind of alternating-current LED light-emitting circuit of the present invention is the bridge-type illuminating circuit that makes the alternating current two-way admittance that is connected and composed by five led modules, as shown in Figure 2, described led module is by using the module of metallic conduction material series connection eutectic on a substrate 2 after a plurality of led chip 1 diamond arraies, the quantity that constitutes the led chip of each led module on four brachium pontis is identical, its quantity is greater than 3, described substrate 2 is to be made by the highly heat-conductive carbon/ceramic ceramic material, its thickness is generally 1.5mm less than 2mm.Substrate 2 be shaped as rectangle, be provided with the positive and negative electrode pad 3 of mutually insulated at the two ends, the left and right sides of substrate 2.Positive and negative electrode 3 is electrically connected with adjacent separately led chip respectively.
Illuminating circuit of the present invention is the bridge circuit that is connected and composed by five led modules that have a positive and negative electrode pad, wherein, the positive and negative electrode annexation of four led module P1, P2, P3, P4 be according to as get off to carry out: will wherein two led module P1, P4 connect, two led module P2, P3 also connect in addition, and the led module combination after will connecting then composes in parallel four brachium pontis; Two led module P1 that form series LED module group in four brachium pontis, tie point A1 between the P4 and other two led module P2, tie point A2 between the P3 is as two ac input ends for AC power AC connection, the tie point D1 of the parallel connection at two serial module structure group two ends on four brachium pontis, D2 is as dc output end, two dc output end D1, connect the 5th module P5 between the D2, negative pole dc output end D1 connected the positive electrode of the 5th module P5 when two series LED module groups were in parallel on the brachium pontis, and the anodal dc output end D2 when two series LED module groups are in parallel on the brachium pontis connects the negative electrode of the 5th module P5.Also be connected with current-limiting resistance R between ac input end A1 and the AC power AC.
As shown in Figure 1, the positive half cycle of alternating current AC flows along solid line P1, P5, P2 path, and negative half period flows along dotted line P3, P5, P4 path, and the led module on four brachium pontis is luminous by turns, relatively the led module on the brachium pontis is simultaneously luminous, middle shared led module P5 because of shared always luminous; When being the positive half cycle of alternating current, led module P1, P5, P2 are luminous; During the negative half period of alternating current, led module P3, P5, P4 are luminous.P1, P2, P3, P4 can rotate with the frequency of per second 50 times in the alternating current of 50Hz and light.It is luminous that P5 obtains pulsating direct current from luminous electric bridge, because LED and fluorescent material have the characteristic of the continuous light of outage twilight sunset, twilight sunset can keep tens microseconds, and because of the memory of human eye convection current moving light spot has inertia, human eye is continuously luminous to the mode of operation deciphering of the luminous+twilight sunset of led light source as a result.And partial L ED module has half the time in work, have half the time having a rest, thereby heating is reduced 40-20%.Therefore the useful life of AC LED is long than DC LED.
Embodiment two: present embodiment is with embodiment one difference: described led module is the high voltage-small current led chip that has the positive and negative electrode pad of being connected and being made by a plurality of LED PN junctions, and the positive and negative electrode pad of chip is connected with the both positive and negative polarity of adjacent separately LED PN junction.
Embodiment three: the difference of present embodiment and embodiment one is: described led module is to be connected on the module that has positive and negative electrode pad 6 on same heat sink 5 by a plurality of monomer LED4 with the metallic conduction material, described monomer LED is single encapsulated LED, and the positive and negative electrode of module links to each other with the both positive and negative polarity of adjacent separately monomer LED4.
Note also that at last above what enumerate only is specific embodiments of the invention, obviously the invention is not restricted to above embodiment, many distortion can also be arranged.Those of ordinary skill in the art can evenly think protection scope of the present invention from the distortion that content disclosed by the invention directly derives or associates.
Claims (16)
1. modular alternating-current LED light-emitting circuit, it is characterized in that: this illuminating circuit is the bridge circuit that is connected and composed by five led modules that have a positive and negative electrode pad, wherein, the positive and negative electrode annexation of four led modules be according to as get off to carry out: will be wherein any two led modules connect, two led modules are also connected in addition, and the led module combination after will connecting then composes in parallel four brachium pontis; Form tie point between two led modules of series LED module group in four brachium pontis as two ac input ends that connect for AC power, the tie point of two series LED module groups parallel connection is as dc output end on four brachium pontis, connect the 5th module between two dc output ends, the negative pole dc output end connected the positive electrode of the 5th module when two series LED module groups were in parallel on the brachium pontis, and the anodal dc output end when two series LED module groups are in parallel on the brachium pontis connects the negative electrode of the 5th module.
2. modular alternating-current LED light-emitting circuit according to claim 1 is characterized in that: described led module be by after a plurality of led chip diamond arraies with the module that have positive and negative electrode pad of metallic conduction material series connection eutectic on same substrate.
3. modular alternating-current LED light-emitting circuit according to claim 1 is characterized in that: described led module is the high voltage-small current led chip of being made by a plurality of LED PN junction series connection that has the positive and negative electrode pad.
4. modular alternating-current LED light-emitting circuit according to claim 1 is characterized in that: described led module is to be connected on the same module that has the positive and negative electrode pad on heat sink by a plurality of monomer LED with the metallic conduction material.
5. modular alternating-current LED light-emitting circuit according to claim 2 is characterized in that: the quantity that constitutes the led chip of each led module on four brachium pontis is identical.
6. modular alternating-current LED light-emitting circuit according to claim 3 is characterized in that: the quantity that constitutes the LED PN junction of each led module on four brachium pontis is identical.
7. modular alternating-current LED light-emitting circuit according to claim 4 is characterized in that: the quantity that constitutes the monomer LED of each led module on four brachium pontis is identical.
8. modular alternating-current LED light-emitting circuit according to claim 2, it is characterized in that: described substrate be shaped as rectangle or fan-shaped, be provided with the positive and negative electrode pad of mutually insulated at the two ends of substrate, the positive and negative electrode pad is electrically connected with adjacent separately led chip respectively.
9. modular alternating-current LED light-emitting circuit according to claim 4, it is characterized in that: the described heat sink rectangle or fan-shaped that is shaped as, be provided with the positive and negative electrode pad of mutually insulated at heat sink two ends, the positive and negative electrode pad is electrically connected with adjacent separately monomer LED respectively.
10. according to claim 2 or 8 described modular alternating-current LED light-emitting circuit, it is characterized in that: described substrate is to be made by high-thermal conductive metal or ceramic material, and its thickness is less than 2mm.
11., it is characterized in that according to claim 4 or 9 described modular alternating-current LED light-emitting circuit: described heat sink be to make by high-thermal conductive metal or ceramic material, its thickness is less than 2mm.
12. modular alternating-current LED light-emitting circuit according to claim 1 is characterized in that: at least one ac input end of this bridge-type illuminating circuit is serially connected with the semiconductor current limiter device.
13. modular alternating-current LED light-emitting circuit according to claim 12 is characterized in that: described semiconductor current limiter device is any device in electric capacity, inductance or the resistance.
14. according to claim 2 or 5 described modular alternating-current LED light-emitting circuit, it is characterized in that: the quantity of led chip that constitutes each led module on four brachium pontis is more than or equal to 3.
15. according to claim 3 or 6 described modular alternating-current LED light-emitting circuit, it is characterized in that: the quantity of LED PN junction that constitutes each led module on four brachium pontis is more than or equal to 3.
16. according to claim 4 or 7 described modular alternating-current LED light-emitting circuit, it is characterized in that: the quantity of monomer LED that constitutes each led module on four brachium pontis is more than or equal to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101529399A CN102026437A (en) | 2009-09-21 | 2009-09-21 | Modular alternating current light-emitting diode (LED) luminous circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101529399A CN102026437A (en) | 2009-09-21 | 2009-09-21 | Modular alternating current light-emitting diode (LED) luminous circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102026437A true CN102026437A (en) | 2011-04-20 |
Family
ID=43867096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101529399A Pending CN102026437A (en) | 2009-09-21 | 2009-09-21 | Modular alternating current light-emitting diode (LED) luminous circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102026437A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102340918A (en) * | 2011-10-22 | 2012-02-01 | 华南师范大学 | An AC light emitting diode device |
| CN102506315A (en) * | 2011-10-22 | 2012-06-20 | 华南师范大学 | High-color-rendering-property light-emitting diode (LED) device |
| CN102638926A (en) * | 2012-04-25 | 2012-08-15 | 刘晓博 | High-voltage alternating-current LED (light-emitting diode) lamp based on full-bridge topological packaging structure |
| CN102797995A (en) * | 2011-05-27 | 2012-11-28 | 亿光电子工业股份有限公司 | Light emitting device, light emitting module and manufacturing method thereof |
| CN102798015A (en) * | 2012-07-12 | 2012-11-28 | 深圳市长运通光电技术有限公司 | Patch type LED (Light-Emitting Diode) luminescent device |
| CN103367386A (en) * | 2013-07-10 | 2013-10-23 | 中国科学院半导体研究所 | Alternating-current light-emitting diode (LED) |
| CN103985705A (en) * | 2014-02-22 | 2014-08-13 | 张涛 | AC high-voltage luminescence chip with high chip luminescence area utilization rate |
| CN107743032A (en) * | 2017-09-20 | 2018-02-27 | 中国电力科学研究院 | A kind of exchange fast-switching arrangement and its control method based on controllable devices |
| CN110602836A (en) * | 2019-10-18 | 2019-12-20 | 陈志明 | Non-polar LED lamp for alternating current or direct current and manufacturing method thereof |
| CN113892007A (en) * | 2019-03-06 | 2022-01-04 | 亮锐有限责任公司 | Modular LED string |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1470072A (en) * | 2000-10-16 | 2004-01-21 | ��˹��ķ�����а뵼���������ι�˾ | LED Module |
| CN2657203Y (en) * | 2003-09-01 | 2004-11-17 | 光鼎电子股份有限公司 | Light emitting diode packaging device with rectifier circuit |
| CN2754308Y (en) * | 2004-11-26 | 2006-01-25 | 泰沂科技股份有限公司 | Driving device for directly driving bridge structure light-emitting diodes using AC power |
| CN2856701Y (en) * | 2005-10-08 | 2007-01-10 | 张龙宝 | Railway signal light source |
| CN201149869Y (en) * | 2008-02-04 | 2008-11-12 | 朱恩灿 | A kind of LED packaging structure |
| CN101304064A (en) * | 2008-07-11 | 2008-11-12 | 哈尔滨工业大学 | LED chip and heat sink bonding method using laser heating on the back of the heat sink |
-
2009
- 2009-09-21 CN CN2009101529399A patent/CN102026437A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1470072A (en) * | 2000-10-16 | 2004-01-21 | ��˹��ķ�����а뵼���������ι�˾ | LED Module |
| CN2657203Y (en) * | 2003-09-01 | 2004-11-17 | 光鼎电子股份有限公司 | Light emitting diode packaging device with rectifier circuit |
| CN2754308Y (en) * | 2004-11-26 | 2006-01-25 | 泰沂科技股份有限公司 | Driving device for directly driving bridge structure light-emitting diodes using AC power |
| CN2856701Y (en) * | 2005-10-08 | 2007-01-10 | 张龙宝 | Railway signal light source |
| CN201149869Y (en) * | 2008-02-04 | 2008-11-12 | 朱恩灿 | A kind of LED packaging structure |
| CN101304064A (en) * | 2008-07-11 | 2008-11-12 | 哈尔滨工业大学 | LED chip and heat sink bonding method using laser heating on the back of the heat sink |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797995A (en) * | 2011-05-27 | 2012-11-28 | 亿光电子工业股份有限公司 | Light emitting device, light emitting module and manufacturing method thereof |
| CN102340918A (en) * | 2011-10-22 | 2012-02-01 | 华南师范大学 | An AC light emitting diode device |
| CN102506315A (en) * | 2011-10-22 | 2012-06-20 | 华南师范大学 | High-color-rendering-property light-emitting diode (LED) device |
| CN102638926A (en) * | 2012-04-25 | 2012-08-15 | 刘晓博 | High-voltage alternating-current LED (light-emitting diode) lamp based on full-bridge topological packaging structure |
| CN102798015A (en) * | 2012-07-12 | 2012-11-28 | 深圳市长运通光电技术有限公司 | Patch type LED (Light-Emitting Diode) luminescent device |
| CN103367386A (en) * | 2013-07-10 | 2013-10-23 | 中国科学院半导体研究所 | Alternating-current light-emitting diode (LED) |
| CN103985705A (en) * | 2014-02-22 | 2014-08-13 | 张涛 | AC high-voltage luminescence chip with high chip luminescence area utilization rate |
| CN107743032A (en) * | 2017-09-20 | 2018-02-27 | 中国电力科学研究院 | A kind of exchange fast-switching arrangement and its control method based on controllable devices |
| CN107743032B (en) * | 2017-09-20 | 2023-12-19 | 中国电力科学研究院 | An AC fast switching device based on controllable devices and its control method |
| CN113892007A (en) * | 2019-03-06 | 2022-01-04 | 亮锐有限责任公司 | Modular LED string |
| CN110602836A (en) * | 2019-10-18 | 2019-12-20 | 陈志明 | Non-polar LED lamp for alternating current or direct current and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102026437A (en) | Modular alternating current light-emitting diode (LED) luminous circuit | |
| CN201262372Y (en) | AC LED light source device | |
| CN103200728A (en) | White LED lighting device directly driven by alternating current | |
| CN201386933Y (en) | ACLED illuminating light source | |
| WO2013097692A1 (en) | Alternating current direct drive led light-emitting device | |
| CN201323676Y (en) | Combination of high-capacity LED lamp driving power and matching lamps thereof | |
| CN201386941Y (en) | Mining anti-explosion LED fluorescent light | |
| CN201731335U (en) | Alternating current direct-drive LED lamp tube | |
| CN203951640U (en) | A kind of light emitting diode drive device | |
| CN201509334U (en) | Modular type alternating current LED luminous circuit | |
| CN201657388U (en) | Constant-current chip packaging body and luminous diode lamp driven by alternating current | |
| CN101839458A (en) | AC LED lighting source | |
| CN202488840U (en) | Light-emitting diode (LED) constant-current power supply | |
| CN101008480A (en) | Module combined low-voltage LED fluorescent lamp | |
| CN203632931U (en) | Protection circuit for driving LED light source COB series combination with switching power supply | |
| CN103200729B (en) | LED Lighting Device Directly Driven by Alternating Current and Constant Current | |
| CN203325905U (en) | AC drive COB-packaged LED module | |
| CN201420963Y (en) | Integrated packaging LED light source without driving circuit | |
| CN100544041C (en) | AC and DC power dual-purpose bridge lighting light-emitting diode and manufacturing method | |
| CN205859624U (en) | Photo engine LED filament | |
| CN202938260U (en) | High-power alternating current LED (Light Emitting Diode) light source | |
| CN203039944U (en) | AC LED module and LED circuit | |
| CN202617467U (en) | Light-emitting diode (LED) dimming switch | |
| CN204069403U (en) | A kind of efficient ac LED | |
| CN202310177U (en) | Novel LED lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: HANGZHOU HANGKE OPTOELECTRONICS CO., LTD. Free format text: FORMER OWNER: YAN QIANJUN Effective date: 20110718 Free format text: FORMER OWNER: WU MINGFAN |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 310012 ROOM 1-2-302, YANGGUANG DIDAI GARDEN, WENYI WEST ROAD, HANGZHOU CITY, ZHEJIANG PROVINCE TO: 310011 5/F, LI ERDA BUILDING, NO. 425, DENGYUN ROAD, GONGSHU DISTRICT, HANGZHOU CITY, ZHEJIANG PROVINCE |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20110718 Address after: Hangzhou City, Zhejiang province 310011 Gongshu District Dengyun Road No. 425 Lilda Building 5 floor Applicant after: Hangzhou Hangke Optoelectronics Co., Ltd. Address before: Hangzhou City, Zhejiang province 310012 West Sunshine Garden Room 1-2-302 Applicant before: Yan Qianjun Co-applicant before: Wu Mingfan |
|
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: Hangzhou City, Zhejiang province 310011 Gongshu District Dengyun Road No. 425 Lilda Building 5 floor Applicant after: Hangzhou Hangke Photoelectric Co., Ltd. Address before: Hangzhou City, Zhejiang province 310011 Gongshu District Dengyun Road No. 425 Lilda Building 5 floor Applicant before: Hangzhou Hangke Optoelectronics Co., Ltd. |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110420 |