CN103634992A - LED (light emitting diode) lamp tube - Google Patents
LED (light emitting diode) lamp tube Download PDFInfo
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- CN103634992A CN103634992A CN201310672955.7A CN201310672955A CN103634992A CN 103634992 A CN103634992 A CN 103634992A CN 201310672955 A CN201310672955 A CN 201310672955A CN 103634992 A CN103634992 A CN 103634992A
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Abstract
The invention discloses an LED (light emitting diode) lamp tube. The LED lamp tube is characterized by comprising a compatible circuit, an EMI (electro-magnetic interference) circuit, a current pursuing circuit, a constant-current and constant-voltage control circuit, an output circuit and an LED lamp circuit. A ballast resistor is connected to the compatible circuit of the LED lamp tube by outputting 135V alternating-current voltage; after the 135V alternating-current voltage is converted by internal alternating-current-to-direct-current rectification, the ballast resistor is connected to the EMI circuit by outputting direct-current voltage; the EMI circuit has a function of filtering ripple current in a power grid; after the ripple current is filtered, the EMI circuit is connected to the current pursuing circuit; and the current pursuing circuit has a function of increasing the value of the power factor of the whole circuit so that secondary pollution on the circuit of the power grid is avoided. The LED lamp tube has the advantages that a T8 type fluorescent lamp tube can be directly replaced by the LED lamp tube; the mounting cost is not added; the energy consumption of the LED lamp tube is only 1/4 of that of the fluorescent lamp tube; the LED lamp tube is mounted simply; and the implementing cost is reduced.
Description
Technical field
The present invention relates to LED lighting field, be specifically related to a kind of LED fluorescent tube.
Background technology
Global energy shortage and environmental pollution show particularly outstandingly in the China of rapid economic development, and energy-conservation and environmental protection is that China realizes Sustainable Socioeconomic Development institute urgent problem.Annual illumination power consumption accounts for 12% ~ 15% of whole power consumptions, as the rich and influential family of energy resource consumption, must find as early as possible the energy-conserving and environment-protective light source of new generation that can substitute conventional light source.LED compares to the unexistent advantage of traditional lighting light source with it, such as lower power demand, preferably drive characteristic, response speed, higher shock resistance, longer useful life, environmental protection and the luminous efficiency constantly improving fast etc. faster, become the light source of new generation that most possibly substitutes in the world at present conventional light source.Although semiconductor lighting cause is just at the early-stage, illuminating LED also has a lot of problems to solve,, along with the swift and violent breakthrough of compound semiconductor technology and improving constantly of encapsulation technology, LED starts to form and progressively expand in the application of lighting field.The luminous efficiency of present stage LED is on the low side and luminous flux high expensive be restriction its enter on a large scale two large bottlenecks of lighting field.The application of LED mainly concentrates on signal designation, intelligent display, automobile lamp, Landscape Lighting and special lighting etc. at present.
At present, the LED fluorescent tube overwhelming majority on market is to be compatible with ballast, adopts ac input voltage to power more, need to original circuit be relocated and could be applied.
Summary of the invention
In order to address the deficiencies of the prior art, the invention provides a kind of LED fluorescent tube, adopt exclusive compatible circuit, can compatible electronic ballast, Inductive ballast, instantaneous take-off formula ballast, without any circuit reconfiguration, has saved cost in application process greatly.
In order to solve the problems of the technologies described above, a kind of LED fluorescent tube, is characterized in that: comprise compatible circuit, EMI circuit, current follow-up circuit, constant-current and constant-voltage control circuit, output circuit and LED circuit for lamp.
Described ballast output 135V alternating voltage is connected to the compatible circuit of LED fluorescent tube, after inner alternating current-direct current rectifying conversion, output dc voltage is connected to EMI circuit, the effect of EMI circuit is to filter ripple current in electrical network, after crossing ripple, being connected to current follow-up circuit, is that the power factor value that promotes whole circuit makes not form to the secondary pollution of electrical network circuit by the effect of flowing electric current.
It is described that through current follow-up circuit, lifting obtains clean direct voltage output to constant-current and constant-voltage control circuit after filtering, the effect of constant-current and constant-voltage control circuit is electric current and the voltage supply output circuit that guarantees that output is constant, the output circuit high-frequency impulse that filtering is filtered in high frequency voltage again guarantees that LED lamp does not produce stroboscopic phenomenon, and output circuit is connected to LED circuit for lamp.
The invention has the beneficial effects as follows: can directly substitute T8 type fluorescent tube, not increase any mounting cost; The energy consumption of LED is only 1/4 of fluorescent lamp; Simplify and install, reduce implementation cost.
Accompanying drawing explanation
Fig. 1 is the functional-block diagram of a kind of LED fluorescent tube of the present invention;
Fig. 2 is the circuit theory diagrams of compatible circuit of the present invention.
Embodiment
As shown in Figure 1, a kind of LED fluorescent tube, is characterized in that: comprise compatible circuit, EMI circuit, current follow-up circuit, constant-current and constant-voltage control circuit, output circuit and LED circuit for lamp.
Described ballast output 135V alternating voltage is connected to the compatible circuit of LED fluorescent tube, after inner alternating current-direct current rectifying conversion, output dc voltage is connected to EMI circuit, the effect of EMI circuit is to filter ripple current in electrical network, after crossing ripple, being connected to current follow-up circuit, is that the power factor value that promotes whole circuit makes not form to the secondary pollution of electrical network circuit by the effect of flowing electric current.
It is described that through current follow-up circuit, lifting obtains clean direct voltage output to constant-current and constant-voltage control circuit after filtering, the effect of constant-current and constant-voltage control circuit is electric current and the voltage supply output circuit that guarantees that output is constant, the output circuit high-frequency impulse that filtering is filtered in high frequency voltage again guarantees that LED lamp does not produce stroboscopic phenomenon, and output circuit is connected to LED circuit for lamp.
As shown in Figure 2, AC1 port is connected to F3 fuse, and F3 fuse is connected to MOV2 piezo-resistance, and F3 fuse is connected to D15 diode negative terminal and D9 diode anode; D15 diode anode is connected to D12 diode anode, and D9 diode negative terminal is connected to D2 diode negative terminal.
AC2 port is connected to F2 fuse, and F2 fuse is connected to MOV2 piezo-resistance, and F2 fuse is connected to D12 diode negative terminal and D2 diode anode; D15 and D12 diode anode are connected to D18 and D19 diode anode, and D9 and D2 diode negative terminal are connected to D16 and D7 diode negative terminal.
AC3 port is connected to F1 fuse, and F1 fuse is connected to MOV1 piezo-resistance, and F1 fuse is connected to D18 diode negative terminal and D16 diode anode; D18 diode anode is connected to D19 diode anode.
AC4 port is connected to MOV1 piezo-resistance, and AC4 port is connected to D19 diode negative terminal and D7 diode anode; D7 diode negative terminal is connected to D16 diode negative terminal.
Four negative pole ends of D2 diode, D7 diode, D9 diode, D16 diode connect together; Four positive terminals of D12 diode, D18 diode, D15 diode, D19 diode connect together.
Be more than the description of this invention and non-limiting, other embodiment based on inventive concept, also all among protection scope of the present invention.
Claims (3)
1. a LED fluorescent tube, is characterized in that: comprise compatible circuit, EMI circuit, current follow-up circuit, constant-current and constant-voltage control circuit, output circuit and LED circuit for lamp.
2. a kind of LED fluorescent tube according to claim 1, it is characterized in that: described ballast output 135V alternating voltage is connected to the compatible circuit of LED fluorescent tube, after inner alternating current-direct current rectifying conversion, output dc voltage is connected to EMI circuit, the effect of EMI circuit is to filter ripple current in electrical network, after crossing ripple, being connected to current follow-up circuit, is that the power factor value that promotes whole circuit makes not form to the secondary pollution of electrical network circuit by the effect of flowing electric current.
3. a kind of LED fluorescent tube according to claim 1, it is characterized in that: described through current follow-up circuit, lifting obtains clean direct voltage output to constant-current and constant-voltage control circuit after filtering, the effect of constant-current and constant-voltage control circuit is electric current and the voltage supply output circuit that guarantees that output is constant, the output circuit high-frequency impulse that filtering is filtered in high frequency voltage again guarantees that LED lamp does not produce stroboscopic phenomenon, and output circuit is connected to LED circuit for lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310672955.7A CN103634992A (en) | 2013-12-12 | 2013-12-12 | LED (light emitting diode) lamp tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310672955.7A CN103634992A (en) | 2013-12-12 | 2013-12-12 | LED (light emitting diode) lamp tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103634992A true CN103634992A (en) | 2014-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310672955.7A Pending CN103634992A (en) | 2013-12-12 | 2013-12-12 | LED (light emitting diode) lamp tube |
Country Status (1)
| Country | Link |
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| CN (1) | CN103634992A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070138971A1 (en) * | 2005-08-15 | 2007-06-21 | Liang Chen | AC-to-DC voltage converter as power supply for lamp |
| CN102305356A (en) * | 2011-05-20 | 2012-01-04 | 宁波欧上照明有限公司 | Light-emitting diode (LED) fluorescent lamp with rotatable lamp heads |
| CN202121817U (en) * | 2011-02-24 | 2012-01-18 | 蔡华兵 | Led fluorescent lamp driving power supply |
| CN103037582A (en) * | 2012-12-18 | 2013-04-10 | 东莞市领冠半导体照明有限公司 | Light-emitted diode (LED) daylight lamp power source compatible with fluorescent lamp system |
| CN203136235U (en) * | 2012-12-18 | 2013-08-14 | 东莞市领冠半导体照明有限公司 | Compatible fluorescent lamp type LED fluorescent lamp power supply |
| CN203243579U (en) * | 2013-05-20 | 2013-10-16 | 张新安 | Low-cost LED lamp drive power source |
-
2013
- 2013-12-12 CN CN201310672955.7A patent/CN103634992A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070138971A1 (en) * | 2005-08-15 | 2007-06-21 | Liang Chen | AC-to-DC voltage converter as power supply for lamp |
| CN202121817U (en) * | 2011-02-24 | 2012-01-18 | 蔡华兵 | Led fluorescent lamp driving power supply |
| CN102305356A (en) * | 2011-05-20 | 2012-01-04 | 宁波欧上照明有限公司 | Light-emitting diode (LED) fluorescent lamp with rotatable lamp heads |
| CN103037582A (en) * | 2012-12-18 | 2013-04-10 | 东莞市领冠半导体照明有限公司 | Light-emitted diode (LED) daylight lamp power source compatible with fluorescent lamp system |
| CN203136235U (en) * | 2012-12-18 | 2013-08-14 | 东莞市领冠半导体照明有限公司 | Compatible fluorescent lamp type LED fluorescent lamp power supply |
| CN203243579U (en) * | 2013-05-20 | 2013-10-16 | 张新安 | Low-cost LED lamp drive power source |
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| PB01 | Publication | ||
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Application publication date: 20140312 |