CN104185346A - Onboard constant-current surface mount device type LED fluorescent lamp - Google Patents
Onboard constant-current surface mount device type LED fluorescent lamp Download PDFInfo
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- CN104185346A CN104185346A CN201410430405.9A CN201410430405A CN104185346A CN 104185346 A CN104185346 A CN 104185346A CN 201410430405 A CN201410430405 A CN 201410430405A CN 104185346 A CN104185346 A CN 104185346A
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- resistance
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- led
- negative pole
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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Abstract
The invention discloses an onboard constant-current surface mount device type LED fluorescent lamp. The onboard constant-current surface mount device type LED fluorescent lamp comprises a fuse, a voltage stabilizer, a full-bridge rectifier, a first capacitor, a second capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor, an audion, a silicon controlled rectifier, a first diode, a second diode, a third diode and an LED lamp bank. Compared with the prior art, the surface mount device type audion MJD13003 is adopted as a device for providing constant current for an LED circuit, the number of peripheral elements is small, and thus the circuit has the advantages of being simple, economical, reliable and the like. The surface mount device type audion is constant in current within a certain range and has a negative temperature coefficient, and an LED is protected against influences caused by the thermal runaway at extreme voltage and working temperature. Working efficiency can reach more than 98%, a power source and LED beads are all welded to the same aluminum substrate, installation is convenient, cost is saved, the fault rate is low, energy is saved, and the environment is protected.
Description
Technical field
The present invention relates to a kind of LED illuminating lamp, relate in particular to a kind of plate and carry constant current surface mount type LED fluorescent lamp.
Background technology
Current traditional LED fluorescent lamp, adopts external power supply control, and electronic devices and components are many, and circuit design scheme complexity, utilizes Switching Power Supply principle, and the loss of circuit multiple conversions electronic devices and components is large, and efficiency is low, not energy-conservation, installs inconvenient.
Summary of the invention
Object of the present invention is just to provide in order to address the above problem a kind of plate to carry constant current surface mount type LED fluorescent lamp.
The present invention is achieved through the following technical solutions above-mentioned purpose:
The present invention includes fuse, pressurizer, full-bridge rectifier, the first electric capacity, the second electric capacity, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, triode, controllable silicon, the first diode, the second diode, the 3rd diode and LED lamp group, described fuse is series on the live wire of AC power, two inputs of described full-bridge rectifier are connected with the two ends of AC power, the two ends of described pressurizer are connected with two inputs of described full-bridge rectifier respectively, the cathode output end while of described full-bridge rectifier and the positive pole of described the first electric capacity, the negative pole of described the 3rd diode, the first end of described the second resistance is connected with the positive pole of described LED lamp group, the cathode output end while of described full-bridge rectifier and the positive pole of described the first diode, the negative pole of described the second electric capacity, described silicon controlled is anodal to be connected with the first end of described the 4th resistance, the negative pole of described the first electric capacity is connected with the negative pole of described the first diode and the positive pole of described the second diode simultaneously, the negative pole of described the second diode is connected with the first end of described the first resistance, the second end of described the first resistance is connected with the positive pole of described the 3rd diode and the positive pole of described the second electric capacity simultaneously, the second end of described the second resistance is connected with the first end of described the 3rd resistance, the second end of described the 3rd resistance is connected with base stage and the described silicon controlled negative pole of described triode simultaneously, the second end of described the 4th resistance is connected with the base stage of described silicon controlled control end and described triode simultaneously, and the emitter of described triode is connected with the negative pole of described LED lamp group.
Particularly, 170 LED lamps that described LED lamp group is connected afterwards by every two parallel connections form.
Beneficial effect of the present invention is:
The present invention is that a kind of plate carries constant current surface mount type LED fluorescent lamp; compared with prior art; the present invention selects SMD triode MJD13003 to provide the device of constant current for LED circuit; peripheral cell is few; make that circuit has simply, the feature such as economic, reliable; SMD triode constant current within the specific limits with negative temperature coefficient, protects LED to avoid thermal runaway impact under extreme voltage and working temperature.Operating efficiency is high can be reached more than 98%, and power supply and LED lamp pearl are all welded on same aluminium base, easy for installation, cost-saving, failure rate is low, energy-conserving and environment-protective.
Brief description of the drawings
Fig. 1 is circuit structure schematic diagram of the present invention;
Fig. 2 is external structure schematic diagram of the present invention.
In figure: 1-power line, 2-LED lamp, the outer box of 3-lamp, 4-power connection.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1: the present invention includes fuse Fu, pressurizer U1, full-bridge rectifier MB6S, the first capacitor C 1, the second capacitor C 2, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, triode Q, controllable silicon U2, the first diode D1, the second diode D2, the LED lamp group that the 3rd diode D3 and 170 LED lamps of being connected afterwards by every two parallel connections form, fuse Fu is series on the live wire of AC power AC, two inputs of full-bridge rectifier MB6S are connected with the two ends of AC power AC, the two ends of pressurizer U1 are connected with two inputs of full-bridge rectifier MB6S respectively, the cathode output end while of full-bridge rectifier MB6S and the positive pole of the first capacitor C 1, the negative pole of the 3rd diode D3, the first end of the second resistance R 2 is connected with the positive pole of LED lamp group, the cathode output end while of full-bridge rectifier MB6S and the positive pole of the first diode D1, the negative pole of the second capacitor C 2, the positive pole of controllable silicon U2 is connected with the first end of the 4th resistance R 4, the negative pole of the first capacitor C 1 is connected with the negative pole of the first diode D1 and the positive pole of the second diode D2 simultaneously, the negative pole of the second diode D2 is connected with the first end of the first resistance R 1, the second end of the first resistance R 1 is connected with the positive pole of the 3rd diode D3 and the positive pole of the second capacitor C 2 simultaneously, the second end of the second resistance R 2 is connected with the first end of the 3rd resistance R 3, the second end of the 3rd resistance R 3 is connected with the base stage of triode Q and the negative pole of controllable silicon U2 simultaneously, the second end of the 4th resistance R 4 is connected with the control end of controllable silicon Q and the base stage of triode Q simultaneously, and the emitter of triode Q is connected with the negative pole of LED lamp group.
Component parameter of the present invention is selected as shown in fig. 1; Triode Q adopts linear SMD triode MJD13003, this triode Q constant current best results in wide voltage; Volume is little, only need to ensure that the numerical value that input voltage deducts LED string total voltage is no more than 60 volts (input subtracts the maximum voltage of output).Replace complex and loaded down with trivial details constant-current source circuit completely, is highly suitable for the LED light fixture product that volume is little, has the features such as with low cost, simple in structure, the life-span is reliable.Can directly apply in 220 volts of ac power supply circuits, 220 volts of electric mains are inputted after bridge rectifier, and periphery adds several capacitance-resistances, voltage stabilizing element.
It is T8-1200-12W-LED fluorescent lamp that LED lamp group adopts model, lamp pearl is selected 2835 white lights, power: 0.1W/, 30ma, 24LM, lamp pearl connected mode 85 goes here and there 2 also, if lamp pearl full power operation can reach 17 watts, in order to extend lamp pearl useful life, improve light efficiency, regulate SMD triode sample resistance, change output current, making every lamp pearl operating current is 20ma, and output gross power is 12 watts, every lamp pearl is just operated in 70% state of rated current like this, has reached the effect that extends lamp pearl useful life and improve light efficiency.
Operation principle of the present invention is as follows:
Choose the SMD electronic devices and components of high-quality high-quality according to Fig. 1, be correctly welded on aluminium base wiring board, whether have short circuit, open circuit phenomenon with universal instrument detection line plate, after testing result is normal, hot-line test well.Linear constant current principle for power acquisition, complete SMD electronic devices and components, MB6S is bridge rectifier, and C1, C2, D1, D2, D3, R1 composition are filled out paddy circuit, improve power factor, can reach more than 0.9, R2, R3, R4, U1, Q, be linear constant current circuit, and LED1-LED170 is bonded LED lamp pearl 2835(power: every 0.1W, electric current: 30mA, light efficiency: 24LM/W).
In Fig. 2, the plate of making in Fig. 1 is carried to constant current and drive surface mount type LED fluorescent lamp, multiple LED lamps 2 are arranged in the outer box 3 of lamp, LED lamp 2 is connected with the power connection 4 that is arranged on the outer box of lamp 3 two ends; On power connection 4, being connected with power line 1 is connected with AC220V power supply.
More than show and described general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (2)
1. plate carries a constant current surface mount type LED fluorescent lamp, it is characterized in that: comprise fuse, pressurizer, full-bridge rectifier, the first electric capacity, the second electric capacity, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, triode, controllable silicon, the first diode, the second diode, the 3rd diode and LED lamp group, described fuse is series on the live wire of AC power, two inputs of described full-bridge rectifier are connected with the two ends of AC power, the two ends of described pressurizer are connected with two inputs of described full-bridge rectifier respectively, the cathode output end while of described full-bridge rectifier and the positive pole of described the first electric capacity, the negative pole of described the 3rd diode, the first end of described the second resistance is connected with the positive pole of described LED lamp group, the cathode output end while of described full-bridge rectifier and the positive pole of described the first diode, the negative pole of described the second electric capacity, described silicon controlled is anodal to be connected with the first end of described the 4th resistance, the negative pole of described the first electric capacity is connected with the negative pole of described the first diode and the positive pole of described the second diode simultaneously, the negative pole of described the second diode is connected with the first end of described the first resistance, the second end of described the first resistance is connected with the positive pole of described the 3rd diode and the positive pole of described the second electric capacity simultaneously, the second end of described the second resistance is connected with the first end of described the 3rd resistance, the second end of described the 3rd resistance is connected with base stage and the described silicon controlled negative pole of described triode simultaneously, the second end of described the 4th resistance is connected with the base stage of described silicon controlled control end and described triode simultaneously, and the emitter of described triode is connected with the negative pole of described LED lamp group.
2. plate according to claim 1 carries constant current surface mount type LED fluorescent lamp, it is characterized in that: 170 LED lamps that described LED lamp group is connected afterwards by every two parallel connections form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410430405.9A CN104185346A (en) | 2014-08-28 | 2014-08-28 | Onboard constant-current surface mount device type LED fluorescent lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410430405.9A CN104185346A (en) | 2014-08-28 | 2014-08-28 | Onboard constant-current surface mount device type LED fluorescent lamp |
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| CN104185346A true CN104185346A (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410430405.9A Pending CN104185346A (en) | 2014-08-28 | 2014-08-28 | Onboard constant-current surface mount device type LED fluorescent lamp |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104853491A (en) * | 2015-05-14 | 2015-08-19 | 芜湖市神龙新能源科技有限公司 | Small low-power LED streetlight |
| CN109760584A (en) * | 2019-03-06 | 2019-05-17 | 广东维杰汽车部件制造有限公司 | Automobile door with luminous layer pedal |
Citations (6)
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|---|---|---|---|---|
| CN201672429U (en) * | 2010-03-16 | 2010-12-15 | 中国航天科技集团公司第九研究院第七七一研究所 | LED illuminating system with emergency power supply |
| CN202738167U (en) * | 2012-07-13 | 2013-02-13 | 木林森股份有限公司 | Constant current power supply of HV-LED lamp without electrolytic capacitor and integrated circuit |
| CN102938957A (en) * | 2012-11-20 | 2013-02-20 | 宁波市镇海华泰电器厂 | Surge voltage resistant pulse-type driving power supply for LED lamp |
| CN202949607U (en) * | 2012-12-06 | 2013-05-22 | 上海欣丰电子有限公司 | Linear high-voltage power supply for LED illuminating lamp |
| CN103475237A (en) * | 2012-06-06 | 2013-12-25 | 成都掌握移动信息技术有限公司 | 5V stabilized voltage supply with protection function |
| CN204104181U (en) * | 2014-08-28 | 2015-01-14 | 芜湖市神龙新能源科技有限公司 | Plate carries constant current surface mount type LED fluorescent lamp |
-
2014
- 2014-08-28 CN CN201410430405.9A patent/CN104185346A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201672429U (en) * | 2010-03-16 | 2010-12-15 | 中国航天科技集团公司第九研究院第七七一研究所 | LED illuminating system with emergency power supply |
| CN103475237A (en) * | 2012-06-06 | 2013-12-25 | 成都掌握移动信息技术有限公司 | 5V stabilized voltage supply with protection function |
| CN202738167U (en) * | 2012-07-13 | 2013-02-13 | 木林森股份有限公司 | Constant current power supply of HV-LED lamp without electrolytic capacitor and integrated circuit |
| CN102938957A (en) * | 2012-11-20 | 2013-02-20 | 宁波市镇海华泰电器厂 | Surge voltage resistant pulse-type driving power supply for LED lamp |
| CN202949607U (en) * | 2012-12-06 | 2013-05-22 | 上海欣丰电子有限公司 | Linear high-voltage power supply for LED illuminating lamp |
| CN204104181U (en) * | 2014-08-28 | 2015-01-14 | 芜湖市神龙新能源科技有限公司 | Plate carries constant current surface mount type LED fluorescent lamp |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104853491A (en) * | 2015-05-14 | 2015-08-19 | 芜湖市神龙新能源科技有限公司 | Small low-power LED streetlight |
| CN109760584A (en) * | 2019-03-06 | 2019-05-17 | 广东维杰汽车部件制造有限公司 | Automobile door with luminous layer pedal |
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Application publication date: 20141203 |
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