CN201636597U - Series LED light source with bypass protection - Google Patents
Series LED light source with bypass protection Download PDFInfo
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- CN201636597U CN201636597U CN2010201170030U CN201020117003U CN201636597U CN 201636597 U CN201636597 U CN 201636597U CN 2010201170030 U CN2010201170030 U CN 2010201170030U CN 201020117003 U CN201020117003 U CN 201020117003U CN 201636597 U CN201636597 U CN 201636597U
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- led
- zener diode
- light source
- series
- led light
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- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
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Abstract
The utility model discloses a series connection LED light source with bypass protection includes the LED group that a plurality of is established ties, and each LED group all has a zener diode in parallel, and this zener diode's positive pole and the anodal hookup of LED group, this zener diode's negative pole and the negative pole hookup of LED group, zener diode's preceding voltage is greater than the preceding voltage of LED group. Under the condition that part of the LEDs are damaged, the Zener diodes connected in parallel are conducted, and the stability of the whole series LED circuit can be ensured.
Description
Technical field
The utility model relates to a kind of holding circuit of series LED light source, especially relates to the series LED light source with bypass protection.
Background technology
Led light source replaces conventional light source just gradually because advantages such as high light efficiency, low energy consumption, long-life have obtained application more and more widely.
Led light source adopts series system to be applied in the illuminator usually, but existing series system led light source has obvious defects, because some LED adopt simple series system to connect, when some LED wherein damages and when disconnecting, open circuit appears in entire circuit, other LED can't operate as normal, and this just greatly reduces the reliability of led light source work.
The utility model content
The purpose of this utility model is: the light source of the series LED with bypass protection is provided, improves the reliability of series LED light source works.
The purpose of this utility model is achieved in that
Series LED light source with bypass protection; the LED group that includes several series connection; each LED group all is parallel with a Zener diode; the negative pole of the positive pole of this Zener diode and LED group connects; the positive pole of the negative pole of this Zener diode and LED group connects, and the forward voltage of described Zener diode is greater than the forward voltage of described LED group.
Each LED group Zener diode all in parallel in the series LED circuit, and the forward voltage of Zener diode is greater than the forward voltage of LED group, then Zener diode forms the bypass of LED group, when the LED operate as normal, its operating voltage is lower than the forward voltage of Zener diode, and this moment, Zener diode ended, electric current by Zener diode is very faint, when LED disconnects, the Zener diode conducting, this moment, whole series circuit can operate as normal.Like this, when partial L ED wherein damages, have only the LED place LED group of damage to form and open circuit, other LED can operate as normal.
Above-mentioned LED group comprises at least one LED.
When the LED group comprised a plurality of LED, above-mentioned LED group was in series by several LED.In fact the LED Zener diode in parallel that is equivalent to a plurality of series connection, the connected mode of formation series-parallel connection, this situation is highly suitable for some circuit that supply voltage had strict demand.
Above-mentioned LED unit can be single-chip LED, also can be polycrystalline sheet LED.
Above-mentioned Zener diode is encapsulated among the LED in parallel with it.
Zener diode is encapsulated among the LED in parallel with it, makes entire circuit simple in structure, and easy for installation, Zener diode is not fragile.
Above-mentioned series LED light source adopts constant pressure source to drive.
Adopt constant pressure source to drive and to realize connected mode flexibly, series connection again after some LED parallel connections can be realized series-parallel connection mode arbitrarily within the specific limits.
Above-mentioned series LED light source adopts constant-current source to drive.
Adopt constant-current source to drive and to guarantee the efficient, stable of circuit.
Description of drawings
Fig. 1 is the structural representation that the utlity model has the series LED light source of bypass protection;
Fig. 2 is the LED encapsulation figure of a specific embodiment of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done detailed explanation:
Present embodiment is the example of a single led Zener diode in parallel.
As shown in Figure 1, the series LED light source of present embodiment includes the LED of several series connection, each LED is parallel with a Zener diode, Zener diode Z1 is in parallel with LED D1, and Zener diode Z2 is in parallel with LED D2, and Zener diode Zn is in parallel with LED Dn ... by that analogy.The positive pole of Zener diode and the negative pole of LED connect, and the negative pole of Zener diode and the positive pole of LED connect, and the forward voltage of Zener diode is greater than the forward voltage of LED.
Each LED in series LED circuit Zener diode all in parallel, and the forward voltage of Zener diode is greater than the forward voltage of LED, then Zener diode forms the bypass of LED, when the LED operate as normal, its operating voltage is lower than the forward voltage of Zener diode, and this moment, Zener diode ended, electric current by Zener diode is very faint, when LED disconnects, the Zener diode conducting, this moment, whole series circuit can operate as normal.
As shown in Figure 2, Zener diode is encapsulated among the LED in parallel with it.Wafer 2 parallel being fixed on the support 1 of LED of Zener diode 3 and LED, and the wafer 2 of Zener diode 3 and LED is encapsulated in the lens 4 together.
Zener diode is encapsulated among the LED in parallel with it, makes entire circuit simple in structure, and easy for installation, Zener diode is not fragile.
The type of drive of the series LED light source of present embodiment both can adopt constant pressure source to drive, also can adopt constant-current source to drive, its advantage is respectively: adopt constant pressure source to drive and can realize connected mode flexibly, series connection again after some LED parallel connections can be realized series-parallel connection mode arbitrarily within the specific limits.Adopt constant-current source to drive and to guarantee the efficient, stable of circuit.
Need to prove: innovative point of the present utility model is by parallel diode on the LED link in tandem, thereby formation bypass, the whole piece circuit of avoiding partial L ED to damage and causing disconnects, its creativeness is to provide a kind of stable whole LED link in tandem connected mode, and not only be confined to local serial or parallel connection, that is to say that the utility model is not got rid of according to actual needs, in certain limits, adopt the embodiment that some LED are in parallel and then connect.
Be a kind of embodiment that provides in conjunction with particular content as mentioned above, can not assert that concrete enforcement of the present utility model is confined to these explanations.All approximate, identical with the utility model structure, device etc., or, all should be considered as protection domain of the present utility model for making some technology deduction or replace under the utility model design prerequisite.
Claims (8)
1. the series LED light source that has bypass protection; the LED group that includes some series connection; it is characterized in that: described each LED group all is parallel with a Zener diode; the negative pole of the positive pole of this Zener diode and LED group connects; the positive pole of the negative pole of this Zener diode and LED group connects, and the forward voltage of described Zener diode is greater than the forward voltage of described LED group.
2. the series LED light source with bypass protection according to claim 1 is characterized in that: described LED group comprises at least one LED.
3. the series LED light source with bypass protection according to claim 2 is characterized in that: described LED group is in series by several LED.
4. according to claim 2 or 3 described series LED light sources with bypass protection, it is characterized in that: described LED can be single-chip LED, also can be polycrystalline sheet LED.
5. according to claim 2 or 3 described series LED light sources with bypass protection, it is characterized in that: described Zener diode is encapsulated among the LED in parallel with it.
6. the series LED light source with bypass protection according to claim 4, it is characterized in that: described Zener diode is encapsulated among the LED in parallel with it.
7. according to each described series LED light source with bypass protection of claim 1-3, it is characterized in that: described series LED light source adopts constant pressure source to drive.
8. according to each described series LED light source with bypass protection of claim 1-3, it is characterized in that: described series LED light source adopts constant-current source to drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201170030U CN201636597U (en) | 2010-01-28 | 2010-01-28 | Series LED light source with bypass protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201170030U CN201636597U (en) | 2010-01-28 | 2010-01-28 | Series LED light source with bypass protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201636597U true CN201636597U (en) | 2010-11-17 |
Family
ID=43081089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201170030U Expired - Fee Related CN201636597U (en) | 2010-01-28 | 2010-01-28 | Series LED light source with bypass protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201636597U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102487571A (en) * | 2010-12-03 | 2012-06-06 | 海洋王照明科技股份有限公司 | Multi-LED (Light-emitting Diode) series connection fault remediation circuit and lamp |
| CN103635121A (en) * | 2011-07-06 | 2014-03-12 | 坦普罗尼克斯公司 | Integration of distributed thermoelectric heating and cooling |
| CN104061467A (en) * | 2014-03-31 | 2014-09-24 | 中山市新邦照明电器有限公司 | Novel LED lamp |
| US9676310B2 (en) | 2012-09-25 | 2017-06-13 | Faurecia Automotive Seating, Llc | Vehicle seat with thermal device |
| US9989282B2 (en) | 2010-09-13 | 2018-06-05 | Tempronics, Inc. | Distributed thermoelectric string and insulating panel |
| US10228165B2 (en) | 2013-11-04 | 2019-03-12 | Tempronics, Inc. | Thermoelectric string, panel, and covers for function and durability |
-
2010
- 2010-01-28 CN CN2010201170030U patent/CN201636597U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9989282B2 (en) | 2010-09-13 | 2018-06-05 | Tempronics, Inc. | Distributed thermoelectric string and insulating panel |
| CN102487571A (en) * | 2010-12-03 | 2012-06-06 | 海洋王照明科技股份有限公司 | Multi-LED (Light-emitting Diode) series connection fault remediation circuit and lamp |
| CN103635121A (en) * | 2011-07-06 | 2014-03-12 | 坦普罗尼克斯公司 | Integration of distributed thermoelectric heating and cooling |
| CN103635121B (en) * | 2011-07-06 | 2016-10-12 | 坦普罗尼克斯公司 | Distributed heat electrical heating and cooling integrated |
| US9596944B2 (en) | 2011-07-06 | 2017-03-21 | Tempronics, Inc. | Integration of distributed thermoelectric heating and cooling |
| US10571162B2 (en) | 2011-07-06 | 2020-02-25 | Tempronics, Inc. | Integration of distributed thermoelectric heating and cooling |
| US9676310B2 (en) | 2012-09-25 | 2017-06-13 | Faurecia Automotive Seating, Llc | Vehicle seat with thermal device |
| US10228165B2 (en) | 2013-11-04 | 2019-03-12 | Tempronics, Inc. | Thermoelectric string, panel, and covers for function and durability |
| US10830507B2 (en) | 2013-11-04 | 2020-11-10 | Tempronics, Inc. | Thermoelectric string, panel, and covers for function and durability |
| CN104061467A (en) * | 2014-03-31 | 2014-09-24 | 中山市新邦照明电器有限公司 | Novel LED lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20101117 Termination date: 20130128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |