CN103327672A - LED fluorescent lamp capable of automatically regulating voltage (light) - Google Patents
LED fluorescent lamp capable of automatically regulating voltage (light) Download PDFInfo
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- CN103327672A CN103327672A CN2012100760119A CN201210076011A CN103327672A CN 103327672 A CN103327672 A CN 103327672A CN 2012100760119 A CN2012100760119 A CN 2012100760119A CN 201210076011 A CN201210076011 A CN 201210076011A CN 103327672 A CN103327672 A CN 103327672A
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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
An LED fluorescent lamp capable of automatically regulating the voltage (light) is composed of a lamp body and a circuit board in the lamp body, wherein a main circuit and an auxiliary circuit are arranged on a circuit pole inside the lamp body. The main circuit is composed of a resistive and capacitive step-down circuit, a rectifying circuit, a composite filter circuit and an LED lamp, and the auxiliary circuit is composed of a light turning-on circuit, a lamp socket voltage detection circuit and an automatic voltage (light) regulating circuit. After the LED fluorescent lamp is put into work, the lamp socket voltage detection circuit conducts tracking monitoring on the working voltage of the LED fluorescent lamp. When the working voltage of a lamp socket is found to exceed the 220V rated voltage, the automatic voltage regulating circuit is started at once to lower the current of the LED fluorescent lamp, therefore, the working voltage of the LED fluorescent lamp is lowered, the working voltage of the LED fluorescent lamp is guaranteed to be below 220V, and a role in automatically regulating the voltage (light) is played.
Description
Technical field
The present invention relates to the LED fluorescent lamp of a kind of automatic Regulation (light)
Background technology
LED fluorescent lamp in the market, general manufacturer can both accomplish drive circuit and light-emitting diode are installed in the plastic tube of T8 type together.Just popular LED fluorescent lamp on the market all lacks automatic Regulation (light) circuit, cause the LED fluorescent lamp in the second half of the night line voltage distribution raise, when particularly magnitude of voltage was raised to 220V, the light decay of LED fluorescent lamp will be accelerated, sometimes even the LED fluorescent lamp is damaged.
Summary of the invention
In the circuit design of a kind of LED fluorescent lamp of the present invention, design has the socket voltage detecting circuit, and the operating voltage of LED fluorescent lamp is followed the tracks of detection.When the operating voltage of finding the LED fluorescent lamp surpasses specified 220V voltage, start automatic Regulation (light) circuit at once, the conduction angle of bidirectional thyristor is reduced, thereby reduce the operating current of supplying with the LED fluorescent lamp, guarantee that the operating voltage of LED fluorescent lamp can not surpass specified 220V voltage.
The LED fluorescent lamp of a kind of automatic Regulation (light), its structure is made up of lamp body shell, lamp body interior circuit board two parts.Described lamp body shell is continued to use the traditional fluorescent lamp lamp tube shapes, and fluorescent tube two is drawn two binding posts and connected the 220V power supply.Circuit board in the described lamp body has main circuit and auxiliary circuit two parts by the function classification.Main circuit board is installed in the about 30MM of internal diameter, long in the T8 fluorescent tube of 1200MM, and design has 5 winding displacement roads on the main circuit board: outside two rows are L, the N line of alternating current, and L, N line centre position separate; Middle two rows are galvanic "+", "--" utmost point; The inside one row is LED lamp pearl.Electric capacity in the resistance-capacitance depressurization circuit, distributing equably is installed on outer field two row L, the N line; Rectification, filter circuit are installed in the two ends of main circuit board respectively; Auxiliary circuit also is installed in the T8 fluorescent tube, and the about 30MM of length, auxiliary circuit are provided with the circuit of turning on light, socket voltage detecting circuit and automatic Regulation (light) circuit.
The turn on light course of work of circuit: after two binding posts outside link tester is crossed fluorescent tube are given the working power of LED fluorescent lamp, the circuit of turning on light can be exported one in time less than 1/3 second positive pulse signal, by this pulse signal effect pressure regulation (light) circuit triggers bidirectional thyristor SCR conducting, thereby make LED lamp pearl obtain working power.
The socket voltage detecting circuit is during LED lamp pearl quits work, and it also is in the state of quitting work because not obtaining power supply.After the bidirectional thyristor conducting, LED lamp pearl gets electric devoting oneself to work, and the socket voltage detecting circuit is followed the tracks of detection to socket voltage automatically.When line voltage distribution is within specified 220V, socket voltage detecting circuit no-output control signal; Only raise and magnitude of voltage when surpassing 220V at line voltage distribution, the socket voltage detecting circuit is just exported one greater than 1/3 second high level signal, effect pressure regulation (light) circuit triggers bidirectional thyristor SCR does pressure regulation (light) operation, reduce the operating current of giving LED lamp pearl, till the socket testing circuit confirms that LED socket voltage returns within the 220V scope, thereby play the effect of an automatic Regulation (light).
Description of drawings
Accompanying drawing is the circuit theory diagrams of the LED fluorescent lamp of a kind of automatic Regulation (light).
Embodiment
As shown in drawings, the circuit structure of the LED fluorescent lamp of a kind of automatic Regulation (light) has main circuit and auxiliary circuit two parts.
As shown in drawings, the main circuit part is made up of two identical resistance-capacitance depressurization circuit, rectification circuit, compound filter circuit of function, and alternating current is become the working power that level and smooth direct current is supplied with the LED fluorescent lamp.The LED fluorescent lamp is to be that paster 5050 (or 5252), power are the chip of 0.3-0.5W by model, and with 6 5050 (5252) series connection one be a basic luminous units, the long LED fluorescent lamp of 1200mm is total to and connects 12 luminescence units, totally 72 5050 (5252) LED lamp.
As shown in drawings, it is the circuit of turning on light of core that auxiliary circuit has IC3, and by the socket voltage detecting circuit that D4, R8, R9, C13 and IC4 form, also having with bidirectional thyristor SCR and IC2 is pressure regulation (light) circuit of core.
Be the circuit of turning on light of core with IC3, IC3 is that model is the IC chip of NE555, because the voltage at electric capacity two ends can not suddenly change, the effect of C10 makes 6 pin of IC3 rigidly connect the current potential of logical moment at power supply close to zero, at this moment, the 3 pin output high level of IC3, effect IC2 pressure regulation (light) circuit triggers bidirectional thyristor SCR work, the value of the capacitor C 10 as long as adjusted on 6 pin of IC3, the high-voltage flat signal of IC3 output was held time less than 1/3 second, the pressure regulation of IC2 (light) circuit just triggers the bidirectional thyristor SCR operation of turning on light like this, and the LED fluorescent lamp is lighted.
As shown in drawings, D4, R8, R9, C13 and IC4 form socket voltage detecting and control circuit.After the LED fluorescent lamp obtained electricity and lights, socket electric circuit inspection circuit D4, R8, R9, C13 followed the tracks of the operating voltage of carrying out socket at once and detect.By the resistance of the R9 that adjusts, make the 5 pin voltages of IC4 less than 1.6V, IC4 does not have voltage output; IC4 is the voltage switch chip, and model is TWH8778; When the socket voltage of LED fluorescent lamp surpasses 220V, 5 pin current potentials big and 1.6V this moment of IC4,2,3 pin of IC4 just have voltage output.The voltage of IC4 is because the inertia that line voltage distribution raises, the time of generally keeping is all greater than 1/3 second, when being applied to pressure regulation (light) circuit of IC2 like this, trigger bidirectional thyristor SCR and do the light modulation operation, the current value that flows to the LED fluorescent lamp is reduced, thereby reduced the operating voltage of LED fluorescent lamp, played the effect of automatic adjusting socket voltage.
IC1 in the accompanying drawing is three terminal regulator, and for IC2 provides comparatively galvanic current source, D2, D7 are diodes, and its effect is guiding and the flat signal of isolated high voltage.V is thermistor, plays a protective role when moment sudden change high-voltage signal is taken place circuit.
Claims (10)
1. the LED fluorescent lamp of an automatic Regulation (light), it is characterized in that: fluorescent lamp is the lamp body shell by the long T8 plastic tube of 1200MM, the main circuit of fluorescent lamp and auxiliary circuit all are installed in the T8 plastic tube, and two binding posts are drawn at two of pipe, connect 220V power LED fluorescent lamp and just can work.
2. the LED fluorescent lamp of a kind of automatic Regulation according to claim 1 (light), it is characterized in that: main circuit is resistance-capacitance depressurization circuit, rectification circuit, compound filter circuit and the LED lamp string of LED fluorescent lamp.
3. the LED fluorescent lamp of a kind of automatic Regulation according to claim 2 (light) is characterized in that: the components and parts of main circuit are installed in the long 1180MM, wide on the PCB circuit board of 27MM that is.
4. the LED fluorescent lamp of a kind of automatic Regulation according to claim 3 (light), it is characterized in that: the about 5MM in PCB circuit board two ends of LED fluorescent lamp respectively installs resistance-capacitance depressurization circuit, rectification circuit and compound filter circuit, and filtered direct current just superposes and supplies with the LED fluorescent lamp together.
5. the LED fluorescent lamp of a kind of automatic Regulation according to claim 3 (light), it is characterized in that: the electric capacity that the resistance-capacitance depressurization circuit is used is more than the withstand voltage 400V.Electric capacity is installed on the PCB circuit board equably, and the circuit intermediate point at electric capacity place disconnects, and the both sides circuit is divided into the identical resistance-capacitance depressurization circuit of performance, rectification circuit, compound filter circuit.
6. the LED fluorescent lamp of a kind of automatic Regulation according to claim 2 (light), it is characterized in that: LED lamp string is made up of the chip of paster 5050 or 5252,0.3-0.5W.It is an elementary cell that 6 of lamp strings are in series, and has 12 elementary cells, 72 5050 (5252) chips.
7. the LED fluorescent lamp of a kind of automatic Regulation according to claim 1 (light) is characterized in that: auxiliary circuit turn on light circuit, socket voltage detecting circuit and automatic Regulation (light) circuit.
8. the LED fluorescent lamp of a kind of automatic Regulation according to claim 7 (light), it is characterized in that: the circuit of turning on light is made up of IC4 and peripheral circuit, and the model of IC4 is the NE555 chip.
9. the LED fluorescent lamp of a kind of automatic Regulation according to claim 7 (light), it is characterized in that: the socket voltage detecting circuit is made up of IC3 and D4, R8, R9, C13, D4, R8, R9, C13 are series connection bleeder circuits, and IC3 is that model is the mains switch chip of TWH8778.
10. the LED fluorescent lamp of a kind of automatic Regulation according to claim 7 (light), it is characterized in that: automatic Regulation (light) circuit is made up of bidirectional thyristor SCR and IC2, and IC2 is that model is special-purpose pressure regulation (light) chip of NB7232.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100760119A CN103327672A (en) | 2012-03-21 | 2012-03-21 | LED fluorescent lamp capable of automatically regulating voltage (light) |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100760119A CN103327672A (en) | 2012-03-21 | 2012-03-21 | LED fluorescent lamp capable of automatically regulating voltage (light) |
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| Publication Number | Publication Date |
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| CN103327672A true CN103327672A (en) | 2013-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012100760119A Pending CN103327672A (en) | 2012-03-21 | 2012-03-21 | LED fluorescent lamp capable of automatically regulating voltage (light) |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9788394B2 (en) | 2014-02-27 | 2017-10-10 | Philips Lighting Holding B.V. | Lighting system, controller and lighting method |
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| CN201750602U (en) * | 2010-08-04 | 2011-02-16 | 宁波欧上照明有限公司 | Drive power source of LED daylight lamp |
| CN201844248U (en) * | 2010-09-30 | 2011-05-25 | 山水照明科技(常熟)有限公司 | LED fluorescent lamp and power circuit of LED fluorescent lamp |
| CN102095154A (en) * | 2011-02-25 | 2011-06-15 | 薛金海 | LED (Light Emitting Diode) light source with low voltage and energy saving |
| CN201902900U (en) * | 2010-11-26 | 2011-07-20 | 四川新力光源有限公司 | Alternating-current LED (light-emitting diode) fluorescent lamp |
| CN102235589A (en) * | 2010-04-23 | 2011-11-09 | 上海查尔斯电子有限公司 | High-density packaged light-emitting diode (LED) desk lamp |
| CN102287716A (en) * | 2011-08-25 | 2011-12-21 | 黄焕珠 | Intelligent light emitting diode (LED) street lamp |
| CN202121850U (en) * | 2011-06-15 | 2012-01-18 | 浙江丽得电器有限公司 | Stepless light-regulation switch for incandescent lamp |
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2012
- 2012-03-21 CN CN2012100760119A patent/CN103327672A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201008220Y (en) * | 2007-02-14 | 2008-01-16 | 胡勇 | LED energy-saving lamp with body inductive switch |
| CN201396596Y (en) * | 2009-05-11 | 2010-02-03 | 大连三重节能技术研发有限公司 | Composite pipe-type integrative fluorescent lamp device |
| CN201656796U (en) * | 2009-11-06 | 2010-11-24 | 方细军 | Semiconductor LED driving power and semiconductor LED daylight lamp |
| CN102235589A (en) * | 2010-04-23 | 2011-11-09 | 上海查尔斯电子有限公司 | High-density packaged light-emitting diode (LED) desk lamp |
| CN201750602U (en) * | 2010-08-04 | 2011-02-16 | 宁波欧上照明有限公司 | Drive power source of LED daylight lamp |
| CN201844248U (en) * | 2010-09-30 | 2011-05-25 | 山水照明科技(常熟)有限公司 | LED fluorescent lamp and power circuit of LED fluorescent lamp |
| CN201902900U (en) * | 2010-11-26 | 2011-07-20 | 四川新力光源有限公司 | Alternating-current LED (light-emitting diode) fluorescent lamp |
| CN102095154A (en) * | 2011-02-25 | 2011-06-15 | 薛金海 | LED (Light Emitting Diode) light source with low voltage and energy saving |
| CN202121850U (en) * | 2011-06-15 | 2012-01-18 | 浙江丽得电器有限公司 | Stepless light-regulation switch for incandescent lamp |
| CN102287716A (en) * | 2011-08-25 | 2011-12-21 | 黄焕珠 | Intelligent light emitting diode (LED) street lamp |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9788394B2 (en) | 2014-02-27 | 2017-10-10 | Philips Lighting Holding B.V. | Lighting system, controller and lighting method |
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Application publication date: 20130925 |