CN101990329A - Alternating current light-emitting diode for eliminating generation of harmonic current - Google Patents
Alternating current light-emitting diode for eliminating generation of harmonic current Download PDFInfo
- Publication number
- CN101990329A CN101990329A CN2009101602197A CN200910160219A CN101990329A CN 101990329 A CN101990329 A CN 101990329A CN 2009101602197 A CN2009101602197 A CN 2009101602197A CN 200910160219 A CN200910160219 A CN 200910160219A CN 101990329 A CN101990329 A CN 101990329A
- Authority
- CN
- China
- Prior art keywords
- emitting diode
- alternating
- light emitting
- current light
- group
- 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
Images
Landscapes
- Led Devices (AREA)
Abstract
The invention discloses an alternating current (AC) light-emitting diode for eliminating generation of a harmonic current, comprising a first set of AC light-emitting diodes, a second set of AC light-emitting diodes and a resistor. The first set of AC light-emitting diodes and the second set of AC light-emitting diodes are in parallel connection with the resistor, which is further connected to a supply end of an AC power. The first set of AC light-emitting diodes and the second set of AC light-emitting diodes respectively have a forward starting voltage. The overall starting voltage obtained when the first set of AC light-emitting diodes and the second set of AC light-emitting diodes are connected in parallel is smaller than the voltage supplied by the supply end of the AC power supply, and smaller than the overall starting voltage obtained when the first set of AC light-emitting diodes and the second set of AC light-emitting diodes are connected in series. Thus, the AC light-emitting diode can be free of harmonic current frustrations in a semiconductor process or a packaging process.
Description
Technical field
The present invention relates to alternating-current light emitting diode, refer to a kind of alternating-current light emitting diode that is applicable to that the harmonic carcellation electric current produces especially.
Background technology
Along with the application of light-emitting diode is popularized day by day, developed at present to be fit to be connected to the alternating-current light emitting diode (AC LED) that AC power is used, the AC power that alternating-current light emitting diode can directly use civil power and provided just can have the effect of light illumination.
With alternating-current light emitting diode shown in Figure 1 is example, and the alternating-current light emitting diode of Fig. 1 includes four alternating-current light emitting diode blocks, and they are one another in series to be connected to an AC power feed end.Each alternating-current light emitting diode block all has a starting resistor forward, and the voltage that the AC power feed end is provided needs just can cause the alternating-current light emitting diode action greater than the starting resistor of alternating-current light emitting diode block integral.With Fig. 1 is example, each alternating-current light emitting diode block has a starting resistor 24V forward, because four alternating-current light emitting diode blocks are one another in series, therefore, if will start four alternating-current light emitting diode blocks, magnitude of voltage need reach 96V just can make it produce the effect of illumination.The 110V alternating current that is provided with general AC power feed end is an example, its peak value is that root-mean-square value multiply by radical sign two that is 156V, so, can make four alternating-current light emitting diode blocks produce light source, and the overall startup voltage of four alternating-current light emitting diode blocks and the comparison of alternating voltage, promptly as shown in Figure 2.
Yet, because the cause that is one another in series will make that the starting resistor of alternating-current light emitting diode integral body is too high.Measurement experience with the alternating-current light emitting diode application end is an example, too high forward starting resistor will cause the generation of harmonic current, previous settling mode, mainly be to solve on transducer (converter) circuit at light-emitting diode, but alternating-current light emitting diode is generally in order to save cost now, therefore on framework, can not use transducer (converter) circuit, therefore, just can only move to the problem of harmonic current in the light shield design of alternating-current light emitting diode and semiconductor technology or the packaging technology and solve.
Summary of the invention
Main purpose of the present invention provides the alternating-current light emitting diode that a kind of harmonic carcellation electric current produces, so that can make alternating-current light emitting diode in light shield design and semiconductor technology or packaging technology, solves the problem of harmonic current.
For reaching above-mentioned purpose, the invention provides a kind of light-emitting diode, comprising: one first group of alternating-current light emitting diode; One second group of alternating-current light emitting diode; And a resistance, including one first link, and one second link, this first link is electrically connected to this first group of alternating-current light emitting diode and this second group of alternating-current light emitting diode, and this second link is electrically connected to this AC power receiving terminal; Wherein, this first group, second group alternating-current light emitting diode has a starting resistor forward respectively, and this first group, second group alternating-current light emitting diode system and be attached to first link of this resistance.
Description of drawings
Fig. 1 is existing alternating-current light emitting diode schematic diagram;
Fig. 2 is existing alternating-current light emitting diode overall startup voltage and AC supply voltage comparison diagram;
Fig. 3 is the alternating-current light emitting diode schematic diagram of a preferred embodiment of the present invention;
Fig. 4 is the overall startup voltage and the AC supply voltage comparison diagram of a preferred embodiment of the present invention.
[main element symbol description]
1 alternating-current light emitting diode, 10 AC power feed ends
12 second groups of alternating-current light emitting diodes of 11 first groups of alternating-current light emitting diodes
111 first alternating-current light emitting diode blocks, 112 second alternating-current light emitting diode blocks
121 the 3rd alternating-current light emitting diode blocks 122 the 4th alternating-current light emitting diode block
2 resistance, 21 first links
22 second links
Embodiment
Please refer to Fig. 3, alternating-current light emitting diode 1 schematic diagram that Fig. 3 harmonic carcellation electric current of the present invention produces comprises: at least one group of alternating-current light emitting diode 11,12, an and resistance 2.In present embodiment, this at least one group of alternating-current light emitting diode 11,12 preferably comprises first group of alternating-current light emitting diode 11 and second group of alternating-current light emitting diode 12 in parallel.Aforementioned each group alternating-current light emitting diode 11,12 includes the alternating-current light emitting diode block 111,112 or 121,122 of a plurality of serial connections.In present embodiment, first group of alternating-current light emitting diode 11 includes one first alternating-current light emitting diode block 111, reaches one second alternating-current light emitting diode block 112; Second group of alternating-current light emitting diode 12 includes one the 3rd alternating-current light emitting diode block 121, reaches one the 4th alternating-current light emitting diode block 122.Resistance 2 include one first link 21, and one second link, 22, the first links 21 be electrically connected to first group of alternating-current light emitting diode 11, and second group of alternating-current light emitting diode 12, the second link be electrically connected to an AC power feed end 10.With the present invention is example, and this AC power feed end 10 is a civil power, gives alternating-current light emitting diode 1 of the present invention so that a voltage to be provided.
With embodiments of the invention is example, and the alternating-current light emitting diode block 111～112,121～122 of Fig. 3 all has a starting resistor value 24V forward.Because alternating-current light emitting diode block 111～112,121～122 is connected in series in twos again and connects, therefore, if will start four alternating-current light emitting diode blocks 111～112,121～122 simultaneously, it is that actuatable alternating-current light emitting diode block 111～112,121～122 is to produce the effect of illumination that magnitude of voltage only need reach 48V.Therefore, the resistance sizes of adjustable resistance 2, make across first group of alternating-current light emitting diode 11, and the forward starting resistor value of second group of alternating-current light emitting diode 12 get final product greater than 48V.For example, the voltage that AC power feed end 10 of the present invention is provided is 110V, its peak value is that root-mean-square value multiply by radical sign two that is 156V, the present invention designs this resistance 2 and has a resistance value to be equal to the equivalent resistance of first group of alternating-current light emitting diode 11, second group of alternating-current light emitting diode 12, so, can make across the voltage of resistance 2 and be equal to across the voltage of first group of alternating-current light emitting diode 11, second group of alternating-current light emitting diode 12.Therefore, root-mean-square value 55V, peak value 78V be will be, root-mean-square value 55V, peak value 78V will be similarly across the voltage of resistance 2 across the forward starting resistor of first group of alternating-current light emitting diode 11, second group of alternating-current light emitting diode 12.Since root-mean-square value 55V, peak value 78V greater than the forward starting resistor value 48V of first group of alternating-current light emitting diode 11, second group of alternating-current light emitting diode 12, just can activate effectively first group of alternating-current light emitting diode 11, and second group of alternating-current light emitting diode 12 to produce light source.The overall startup voltage of the light-emitting diode block 111～112,121～122 of present embodiment and the comparison of alternating voltage please refer to shown in Figure 4.
Compared to described four the alternating-current light emitting diode blocks of the prior art needed forward starting resistor 96V that is in series, the present invention sees through and is connected in series earlier and the structure that connects again, cooperate the utilization of resistance 2, starting resistor value 48V can move can to make alternating-current light emitting diode block 111～112,121～122 only need forward.Because forward the starting resistor value significantly reduces, therefore, just can effectively improve harmonic current and produce, so that alternating-current light emitting diode in light shield design and semiconductor technology or packaging technology, thoroughly solves the problem of harmonic current.
Yet the foregoing description is only given an example for convenience of description, and the interest field that the present invention advocated should be as the criterion so that claim is described certainly, but not only limits to the foregoing description.
Claims (5)
1. the alternating-current light emitting diode that produces of a harmonic carcellation electric current is characterized in that comprising:
One first group of alternating-current light emitting diode;
One second group of alternating-current light emitting diode; And
One resistance includes one first link, reaches one second link, and this first link is electrically connected to this first group of alternating-current light emitting diode and this second group of alternating-current light emitting diode, and this second link is electrically connected to an AC power feed end;
Wherein, this first group, second group alternating-current light emitting diode has a starting resistor forward respectively, and this first group, second group alternating-current light emitting diode and be attached to first link of this resistance.
2. the alternating-current light emitting diode that harmonic carcellation electric current as claimed in claim 1 produces is characterized in that, each this first group, second group of alternating-current light emitting diode comprise the alternating-current light emitting diode of a plurality of serial connections.
3. the alternating-current light emitting diode that harmonic carcellation electric current as claimed in claim 2 produces, it is characterized in that, each alternating-current light emitting diode all has a starting resistor value forward, cause each this first group, second group alternating-current light emitting diode to have an overall startup voltage, the resistance value of this resistance is designed to make voltage across first group of alternating-current light emitting diode and second group of alternating-current light emitting diode greater than this overall startup voltage.
4. the alternating-current light emitting diode that harmonic carcellation electric current as claimed in claim 2 produces is characterized in that each this first group, second group alternating-current light emitting diode is made up of a plurality of light-emitting diode micromeritics.
5. the alternating-current light emitting diode that harmonic carcellation electric current as claimed in claim 4 produces, it is characterized in that, each this first group, second group alternating-current light emitting diode also comprises a chip, and a plurality of light-emitting diode micromeritics of each this first group, second group alternating-current light emitting diode are integrated on this chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101602197A CN101990329A (en) | 2009-07-30 | 2009-07-30 | Alternating current light-emitting diode for eliminating generation of harmonic current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101602197A CN101990329A (en) | 2009-07-30 | 2009-07-30 | Alternating current light-emitting diode for eliminating generation of harmonic current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101990329A true CN101990329A (en) | 2011-03-23 |
Family
ID=43746551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101602197A Pending CN101990329A (en) | 2009-07-30 | 2009-07-30 | Alternating current light-emitting diode for eliminating generation of harmonic current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101990329A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102270632A (en) * | 2011-07-09 | 2011-12-07 | 内蒙古华延芯光科技有限公司 | High voltage light emitting diode and manufacturing method thereof |
| CN102842573A (en) * | 2012-09-05 | 2012-12-26 | 宁波市鄞州皓升半导体照明有限公司 | Alternating current light emitting diode structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1886017A (en) * | 2005-06-24 | 2006-12-27 | 冠德光电科技股份有限公司 | AC light-emitting diode lamp luster |
| CN1943276A (en) * | 2004-02-25 | 2007-04-04 | 迈克尔·米斯金 | AC light emitting diode and AC led drive methods and apparatus |
-
2009
- 2009-07-30 CN CN2009101602197A patent/CN101990329A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1943276A (en) * | 2004-02-25 | 2007-04-04 | 迈克尔·米斯金 | AC light emitting diode and AC led drive methods and apparatus |
| CN1886017A (en) * | 2005-06-24 | 2006-12-27 | 冠德光电科技股份有限公司 | AC light-emitting diode lamp luster |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102270632A (en) * | 2011-07-09 | 2011-12-07 | 内蒙古华延芯光科技有限公司 | High voltage light emitting diode and manufacturing method thereof |
| CN102842573A (en) * | 2012-09-05 | 2012-12-26 | 宁波市鄞州皓升半导体照明有限公司 | Alternating current light emitting diode structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| MY188090A (en) | Main-gate-free and high-efficiency back-contact solar cell module, main-gate-free and high-efficiency back-contact solar cell assembly, and preparation process thereof | |
| EP2879469A1 (en) | Drive circuit for led module | |
| CN102781146B (en) | driving circuit of light emitting diode string and driving method thereof | |
| EP2525135A3 (en) | Light-emitting module and luminaire | |
| WO2009000369A3 (en) | High voltage led lighting system | |
| CN101990329A (en) | Alternating current light-emitting diode for eliminating generation of harmonic current | |
| CN102761290A (en) | Junction box | |
| CN201893718U (en) | Photoelectric isolated AC/DC voltage converting circuit | |
| US20140103821A1 (en) | Lighting device and voltage reduction method thereof | |
| US20110018457A1 (en) | AC LED device for eliminating harmonic current | |
| CN203590543U (en) | Light emitting diode control circuit and packaging structure and system thereof | |
| CN203193969U (en) | Time-division multiple-path constant current driving LED lamp | |
| CN202958027U (en) | Light-emitting diode (LED) lighting circuit | |
| CN203325905U (en) | AC drive COB-packaged LED module | |
| CN202349644U (en) | Light-emitting diode light source module | |
| CN202095129U (en) | AC driving light emitting diode network | |
| CN201351888Y (en) | A light-emitting diode light source module and constant current unit structure thereof | |
| CN204127899U (en) | Direct-current LED street lamp cap | |
| CN203104899U (en) | Alternating current-driven light emitting diode circuit and lighting device | |
| CN203104895U (en) | AC driven light emitting diode circuit | |
| CN202738166U (en) | Power and data processor | |
| CN202043317U (en) | Light-emitting diode (LED) drive circuit | |
| CN202979391U (en) | LED drive system and semiconductor lighting device | |
| CN202634761U (en) | LED power supply | |
| CN201577221U (en) | Non-polar LED light fixture power supply module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110323 |