CN102278722A - Electronic ballast-type LED fluorescent lamp - Google Patents

Electronic ballast-type LED fluorescent lamp Download PDF

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Publication number
CN102278722A
CN102278722A CN2011101522537A CN201110152253A CN102278722A CN 102278722 A CN102278722 A CN 102278722A CN 2011101522537 A CN2011101522537 A CN 2011101522537A CN 201110152253 A CN201110152253 A CN 201110152253A CN 102278722 A CN102278722 A CN 102278722A
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CN
China
Prior art keywords
fluorescent lamp
led
led fluorescent
output
unit
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Granted
Application number
CN2011101522537A
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Chinese (zh)
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CN102278722B (en
Inventor
李正恒
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Pu Chengzhen
SJHIGHTECH CO Ltd
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Pu Chengzhen
SJHIGHTECH CO Ltd
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Publication of CN102278722A publication Critical patent/CN102278722A/en
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Publication of CN102278722B publication Critical patent/CN102278722B/en
Expired - Fee Related legal-status Critical Current
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • 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
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Abstract

The present invention relates to an electronic ballast-type LED fluorescent lamp comprising: a unit prohibiting excess current which is configured with a pair of fuses facing each other and prohibits excess current equal to or greater than a determined value; a filament unit including an inductor which is connected to the output terminals of the pair of fuses constituting the unit for prohibiting excess current; a unit for matching impedance which is configured with inductors facing each other and connected to both terminals of the inductor of the filament unit, respectively, and matching the output impedance of an electronic ballast and the input impedance of an LED lamp in an LED fluorescent lamp; a DC rectifier unit configured with a bridge diode connected to the impedance matching unit for converting input AC drive power to DC drive power for an LED fluorescent lamp; and a unit for generating constant DC voltage which is configured with a condenser installed and connected between the input and output terminals of the bridge diode of the DC rectifier unit, and charges/discharges the converted DC source to generate constant DC power. The lamp of the present invention can be used by installing a general-purpose LED module into a fluorescent lamp socket without the use of an additional device.

Description

The LED fluorescent lamp of electric ballast type
Technical field
The present invention relates to a kind of LED fluorescent lamp of electric ballast type, its stable AC power that applies from power supply is converted to dc source, with the dc source driving LED bulb of its conversion.Relate more specifically to a kind of LED fluorescent lamp of electric ballast type, it is not having under the situation of other newly added equipments, the Universal LED assembly can be installed on fluorescent light bracket use.
Background technology
Advantages such as generally, fluorescent lamp is because than incandescent lamp, and the life-span is long, power consumption is little are extensive use of.But fluorescent lamp has the serious problems that cause problem of environmental pollution from the mercury of fluorescent tube outflow when discarding after use.
In order to address these problems, proposed to replace the technology of fluorescent lamp recently by LED, because LED not only can solve problem of environmental pollution, the effect of saving about energy of about 30% is arranged than fluorescent lamp, its necessity promotes greatly.
Existing LED is applicable to that the technology of fluorescent lamp is to be provided with under the state of existing fluorescent lamp ballast, only replace the fluorescence bulb with the LED illumination, prompting is on Korean Patent Registration 10-0821975 number, 10-0844538 number, Korea S's publication 10-2007-95764 number etc.
But prior art has to use and manufactures specific form, makes it can be installed in LED assembly on the fluorescent light bracket, can not use the problem of Universal LED assembly.That is, having is not having under the situation of other newly added equipments, the Universal LED assembly can't be installed in the shortcoming on the fluorescent light bracket.
Summary of the invention
The present invention develops in order to address the above problem, and its purpose is, a kind of LED fluorescent lamp of electric ballast type is provided, and it is not being had under the situation of other newly added equipments, the Universal LED assembly can be installed on the fluorescent light bracket and use.
For reaching the LED fluorescent lamp according to electric ballast type of the present invention of this purpose, it is characterized in that, comprising: overcurrent blocking-up portion, its fuse by a pair of mutual subtend constitutes, the above excessive electric current of blocking-up setting; Filament portion, it has the inductor on each output that is connected a pair of fuse that constitutes above-mentioned overcurrent blocking-up portion; Impedance matching portion, it is at two ends of inductor of above-mentioned filament portion, by one by one each other the inductor that connects of subtend constitute, mate the input impedance of the LED bulb in electric ballast output impedance and the LED fluorescent lamp identical; The DC rectification part, it is made of the bridge diode that is connected above-mentioned impedance matching portion, will input AC driving power converts the DC driving power of LED fluorescent lamp to; And DC electrostatic pressure generating unit, it is connected the input of above-mentioned DC rectification part bridge diode by setting and the capacitor between the output constitutes, and discharges and recharges the DC power supply of above-mentioned conversion, generates the DC power supply of regulation.
Preferably, to comprise that also electrostatic pressure/electric current portion of keeping is a feature, its by the output that is connected above-mentioned DC rectification part bridge diode and and the output of above-mentioned LED bulb be connected to degenerative diode and be arranged on above-mentioned diode and the LED bulb between capacitor constitute, keep predetermined electric current, voltage, make the stable operation of LED fluorescent lamp.
And, with above-mentioned LED bulb, forming the mutually different a plurality of of identical cohort, each sets the quantity separation, is feature with the same sequence arranged in series.
According to the LED fluorescent lamp of electric ballast type of the present invention, solution can only be used and manufacture specific form, and the LED assembly of fluorescent light bracket can be installed, and can't use the problem of Universal LED assembly.
That is, having is not having under the situation of other newly added equipments, and the effect that the Universal LED assembly uses can be installed on fluorescent light bracket.
Description of drawings
Fig. 1 be expression according to electric ballast type of the present invention the circuit diagram of LED fluorescent lamp.
Fig. 2 a and Fig. 2 b are that expression for example is according to the preferred kenel of the LED bulb structure in the LED fluorescent lamp of the present invention.
The explanation of Reference numeral
101: overcurrent blocking-up portion
102: filament portion
103: impedance matching portion
The 104:DC rectification part
105:DC electrostatic pressure generating unit
The 106:LED bulb
107: electrostatic pressure/electric current is kept portion
The specific embodiment
Below, with reference to description of drawings the present invention.
Just, the embodiment that the following describes is just in order to describe in detail, makes so long as have the people of the conventional knowledge in the technology of the present invention field, just can implement the present invention easily, and not mean that interest field of the present invention is limited to this because of it.
Omitted and the irrelevant part of explanation in order to offer some clarification on the present invention,, similar part has been added similar artwork symbols by whole specification.
In whole specification and the claim, when showing that certain part comprises certain inscape, under the situation that does not have opposite especially record, not to get rid of other inscapes, but mean and to comprise other inscapes.
Fig. 1 be expression according to electric ballast type of the present invention the circuit diagram of LED fluorescent lamp.
As shown in Figure 1, this LED fluorescent lamp is the structure that is made of overcurrent blocking-up portion 101, filament portion 102, impedance matching portion 103, DC rectification part 104, DC electrostatic pressure generating unit 105 substantially.
That is, by overcurrent blocking-up portion, its fuse by a pair of mutual subtend constitutes, the above excessive electric current of blocking-up setting; Filament portion, it has the inductor on each output that is connected a pair of fuse that constitutes above-mentioned overcurrent blocking-up portion; Impedance matching portion, it is at two ends of inductor of above-mentioned filament portion, by one by one each other the inductor that connects of subtend constitute, mate the input impedance of the LED bulb in electric ballast output impedance and the LED fluorescent lamp identical; The DC rectification part, it is made of the bridge diode that is connected above-mentioned impedance matching portion, will input AC driving power converts the DC driving power of LED fluorescent lamp to; And DC electrostatic pressure generating unit, it is connected the input of above-mentioned DC rectification part bridge diode by setting and the capacitor between the output constitutes, and discharges and recharges the DC power supply of above-mentioned conversion, the structure that the DC power supply of generation regulation is constituted.
In addition, comprise that also electrostatic pressure/electric current keeps the formed structure of portion, its by the output that is connected above-mentioned DC rectification part bridge diode and and the output of above-mentioned LED bulb be connected to degenerative diode and be arranged on above-mentioned diode and the LED bulb between capacitor constitute, keep predetermined electric current, voltage, make the stable operation of LED fluorescent lamp.
Here, above-mentioned overcurrent blocking-up portion 101 is formed by a pair of fuse of mutual subtend, and during the input overcurrent, the overcurrent of blocking-up input can't continue to flow into the above excessive current of regulation automatically.In fact, the heat that produces during owing to the inflow overcurrent ruptures.Owing to take turns input signal respectively once to input terminal a, b and c, d; have only the words of a side by fuse; though the overcurrent that enters from that survey can be protected, the overcurrent that enters from opposite side can't be protected, and therefore will be arranged on the both sides of input terminal.
Filament portion 102 is that the inductor with each output that is connected a pair of fuse that constitutes above-mentioned overcurrent blocking-up portion 101 forms, and is the circuit part for the filament effect that plays fluorescent lamp.Usually; because electronic ballast for fluorescent lamp is made of 3 segment structures that constitute with negative pole preheating (filament/preheating), starting resistor, normal operation; in electric ballast; for under negative pole preheating and starting resistor pattern; holding circuit is not moved, preferably made them can be at 10 μ H～play the filament effect below the 100 μ H.
Impedance matching portion 103 by two ends of the inductor of above-mentioned filament portion 102 one by one each other the inductor that connects of subtend constitute, with the identical coupling of input impedance of LED bulb (Lamp) in electric ballast output impedance and the LED fluorescent lamp.Be to be adjusted to the same circuit part for input impedance with LED bulb (Lamp) in electric ballast output impedance and the LED fluorescent lamp.Because the type of electric ballast is a lot, therefore be difficult to make input identical with output impedance.Generally use resistance, but resistance there are problems such as size, heat release in order to regulate impedance.Be difficult to regulate rated power.Because the circuit arrangement of L12, L13, L14, L20 has the same frequency of impedance to be, have L and R composition simultaneously, therefore need 100 μ H～1 in order to regulate rated power, the value of 000 μ H, can carry out a, b and the voltage of c, d and the corrigendum of electric current to input, power is along with the capability value of L12, L13, L14, L20 changes, and on 18W～28W the free adjustment rated disspation.
DC rectification part 104 is formed by the bridge diode that is connected above-mentioned impedance matching portion 103, and bridge diode is in order to be the equipment of DC driving power with the rectification of AC driving power.The AC power that is input to input terminal a, b and c, d is converted into the dc source of driving LED bulb.
DC electrostatic pressure generating unit 105 is connected the input of above-mentioned DC rectification part 104 bridge diodes by setting and the capacitor between the output constitutes, and discharges and recharges the DC power supply of above-mentioned conversion, generates the DC power supply of regulation.Above-mentioned capacitor charging/discharging rectification is the composition of direct current, makes the dc voltage of regulation.This capacitor generally uses electrolytic capacitor, but because the capacity of electrolytic capacitor is big and the charging interval is long, problem is arranged when therefore using as circuit of electronic ballast.Electric ballast is with negative pole preheating, starting resistor, the operation of ballast mode 3 stage, because the charging interval is long when using electrolytic capacitor, therefore in negative pole preheating and starting resistor pattern, apply the voltage more than about 800V, and therefore the power that applies form the dangerous operation of circuit more than 80W.Therefore, use the capacitor of low capacity and film, the charging interval and the discharge time that suitably maintain in negative pole preheating and the starting resistor pattern are particularly important, and the time will be in 1 second.Owing to will keep negative pole preheating/sec, starting resistor/sec and regulation dc voltage, therefore will select the suitable capacity of 200 μ F～470 μ F.
Electrostatic pressure/electric current is kept portion 107 by the output that is connected above-mentioned DC rectification part 104 bridge diodes, and with negative-feedback be connected above-mentioned LED bulb output diode and, the inductor that is arranged between above-mentioned diode and the LED bulb constitutes, in order to make the stable operation of LED fluorescent lamp, electric current, voltage need be maintained specified states.In order to make the stable operation of LED fluorescent lamp, electric current, voltage need be maintained specified states, therefore use the drive coil of L3, L4, L5, regulation voltage and electric current make its stable operation.The diode of D7 uses negative-feedback.
LED fluorescent lamp 106 is formed by a plurality of LED bulbs, is driven by dc source.That is, the frequency of the electric current that will apply from power supply is stable by ballast, by bridge diode AC power is converted to dc source, is driven by the dc source of conversion.In order to make the stable operation of LED fluorescent lamp, electric current, voltage need be maintained specified states, could implement suitable power consumption 18W～28W with 10～25 series system driving for this reason.
Below, with reference to accompanying drawing 2a and 2b the preferred structure form of LED fluorescent lamp according to the present invention is described.
Fig. 2 a and Fig. 2 b represent the preferred kenel according to the LED bulb structure in the LED fluorescent lamp of the present invention for example.
Shown in Fig. 2 a and Fig. 2 b, in order to make the stable operation of LED fluorescent lamp, electric current, voltage need be maintained specified states, could implement suitable power consumption 18W～28W with 10～25 series system driving for this reason.
Above-mentioned LED bulb forms the mutually different a plurality of of identical cohort, and each sets the quantity separation, with the same sequence arranged in series.
Illustrated LED series parallel circuits prevents the overload that LED heat causes, and is not having to ensure maximum life under the situation of fin.
As the LED failure cause,, on its gold jewellery that causes, produce the overcurrent continuity and disconnect (OPEN) with the spun gold bonding wire between luminescence chip and multiple luminescence chip in LED inside, take place that electric power can't pass on phenomenon.
Therefore, be principle so that electric power to be provided separately among the LED.
But, when using a large amount of LED, owing to need to produce a lot of electric power, make converter circuit become very huge or use the electric power of degree of danger, danger is arranged, therefore reflect with series circuit.
Under the situation of simple cascaded structure mode, the LED integral body of cascaded structure became the reason of not putting lamp when the fault of above-mentioned LED took place.With LED with the quantity of predetermined distance be spaced the series and parallel design time, the fault of LED is taken place to reduce design with the illumination of minimum, so that have optimum condition.
Indivedual arrangements of LED are arranged with right quantity, enlarge the backboard of configuration connecting circuit, be designed to the maximum radiator structure of LED heat, can be designed to minimize the radiator structure of LED heat.
Below, the operation according to the LED fluorescent lamp of electric ballast type of the present invention of Fig. 1 is as follows.
This LED fluorescent lamp at first, the stable power frequency that applies from power supply, for this reason, preferentially, overcurrent blocking-up portion 101 is formed by a pair of fuse of mutual subtend, the excessive AC power supplies that the blocking-up setting is above, by two ends of above-mentioned filament portion 102 inductors one by one mutually the impedance matching portion 103 that constitutes of the inductor that connects of subtend mate the input impedance of LED bulb (Lamp) in electric ballast output impedance and the LED fluorescent lamp identical.The frequency of stabling current then, the bridge diode by DC rectification part 104 is converted to dc source with AC power, with the LED bulb in the dc source driving LED fluorescent lamp 106 of its conversion.At this moment, utilize and be connected the input of above-mentioned DC rectification part 104 bridge diodes and the DC electrostatic pressure generating unit 105 that the capacitor between the output constitutes, discharge and recharge the dc source of above-mentioned conversion, generate the DC power supply of regulation by setting.
In addition, use by the output that is connected above-mentioned DC rectification part 104 bridge diodes and be connected with negative-feedback above-mentioned LED bulb output diode and, be arranged on electrostatic pressure/electric current that the inductor between above-mentioned diode and the LED bulb constitutes and keep portion 107, electric current, voltage are maintained specified states, make the stable operation of LED fluorescent lamp.

Claims (3)

1. the LED fluorescent lamp of an electric ballast type is characterized in that, comprising:
Overcurrent blocking-up portion, it is made of a pair of fuse in opposite directions, and the above overcurrent of blocking-up setting;
Filament portion, it has the inductor that is connected with each output of a pair of fuse that constitutes described overcurrent blocking-up portion;
Impedance matching portion, it is made of the inductor of two ends that each is connected the inductor of described filament portion each other opposite to each other, mates the input impedance of the LED bulb in electric ballast output impedance and the LED fluorescent lamp thus in the same manner;
The DC rectification part, it is made of the bridge diode that is connected with described impedance matching portion, and will import the DC driving power that the AC driving power converts the LED fluorescent lamp to; And
DC electrostatic pressure generating unit, it is connected the input of bridge diode of described DC rectification part by setting and the capacitor between the output constitutes, and the DC power supply of described conversion is charged and discharges, and form the DC power supply of regulation.
2. the LED fluorescent lamp of electric ballast type according to claim 1, it is characterized in that, comprise that also electrostatic pressure/electric current keeps portion, its by the diode that is connected with the output of the bridge diode of described DC rectification part and is connected with the output of described LED bulb by negative-feedback and be arranged on described diode and the LED bulb between capacitor constitute, and keep predetermined electric current, voltage, make the stable operation of LED fluorescent lamp.
3. the LED fluorescent lamp of electric ballast type according to claim 1 is characterized in that, forms the mutually different a plurality of described LED bulb of same cluster, and each setting quantity is separated, and with the same sequence arranged in series.
CN2011101522537A 2010-06-08 2011-06-08 Electronic ballast-type led fluorescent lamp Expired - Fee Related CN102278722B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2010-0053943 2010-06-08
KR1020100053943A KR100996670B1 (en) 2010-06-08 2010-06-08 Led lighting of electronic stabilizer type

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CN102278722A true CN102278722A (en) 2011-12-14
CN102278722B CN102278722B (en) 2013-11-06

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Publication number Priority date Publication date Assignee Title
CN102932997A (en) * 2012-11-09 2013-02-13 浙江恒曼光电科技有限公司 LED (light-emitting diode) fluorescent lamp drive circuit and LED lamp tube
CN103561500A (en) * 2013-10-24 2014-02-05 常熟恒富昱光电有限公司 Output-power-adjustable LED drive circuit compatible with electronic ballast
CN104640322A (en) * 2015-02-06 2015-05-20 深圳市豪恩光电照明有限公司 LED (Light Emitting Diode) lamp tube driver compatible with electronic ballast
CN104938036A (en) * 2013-01-24 2015-09-23 克里公司 LED lighting apparatus for use with AC-output lighting ballasts
CN105916244A (en) * 2016-05-25 2016-08-31 欧普照明股份有限公司 LED driving controller, driving method, LED lighting tube and lighting system
CN106102255A (en) * 2016-08-03 2016-11-09 欧普照明股份有限公司 Simulation filament impedances circuit, LED lamp tube and LED illumination System
US9871404B2 (en) 2011-12-12 2018-01-16 Cree, Inc. Emergency lighting devices with LED strings
US10104723B2 (en) 2013-01-24 2018-10-16 Cree, Inc. Solid-state lighting apparatus with filament imitation for use with florescent ballasts
US10117295B2 (en) 2013-01-24 2018-10-30 Cree, Inc. LED lighting apparatus for use with AC-output lighting ballasts
CN108886853A (en) * 2016-03-31 2018-11-23 飞利浦照明控股有限公司 Conversion circuit between flourescent ballast and LED

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RU2661891C2 (en) * 2012-06-27 2018-07-20 Филипс Лайтинг Холдинг Б.В. Driver circuit between electromagnetic ballast and light-emitting diode
KR101400369B1 (en) * 2012-08-23 2014-05-28 주식회사 하이딥 Led lighting device using ballaster for fluorescent lamp
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US9439250B2 (en) 2012-09-24 2016-09-06 Samsung Electronics Co., Ltd. Driving light emitting diode (LED) lamps using power received from ballast stabilizers
US10045406B2 (en) 2013-01-24 2018-08-07 Cree, Inc. Solid-state lighting apparatus for use with fluorescent ballasts
KR101372009B1 (en) * 2013-04-25 2014-03-07 최남규 Circuitry for led illumination apparatus and printed circuit board
JP6118431B2 (en) 2013-08-27 2017-04-19 フィリップス ライティング ホールディング ビー ヴィ LED retrofit lamp with active overcurrent protection circuit
JP2015050191A (en) * 2013-09-04 2015-03-16 ルミリッチ シーオー エルティディ Light emitting diode lamp using alternating current voltage
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CN108347809A (en) * 2018-04-13 2018-07-31 深圳市豪恩智能物联股份有限公司 A kind of LED drive circuit of compatible electronic ballast

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100884279B1 (en) * 2008-10-30 2009-02-17 (주)흥화전자 Led fixture for fluorecent lamp socket
CN201210762Y (en) * 2008-05-29 2009-03-18 上海恒烁光电科技有限公司 Embedded power source for LED fluorescent tube
JP2009272154A (en) * 2008-05-08 2009-11-19 Rohm Co Ltd Light-emitting diode illumination device
CN201383889Y (en) * 2009-04-01 2010-01-13 谢建强 LED circuit

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3929885B2 (en) * 2002-12-06 2007-06-13 シーケーディ株式会社 LED lighting apparatus, LED lighting apparatus manufacturing apparatus, and LED lighting apparatus manufacturing method
KR101001321B1 (en) * 2008-05-27 2010-12-17 (주)블루씨마 The led lighting
KR20100054911A (en) * 2008-11-16 2010-05-26 심현섭 The ac power led illuminating lamp apparatus having power stabilization function
KR100917226B1 (en) 2009-02-17 2009-09-16 노현태 The led lamp

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009272154A (en) * 2008-05-08 2009-11-19 Rohm Co Ltd Light-emitting diode illumination device
CN201210762Y (en) * 2008-05-29 2009-03-18 上海恒烁光电科技有限公司 Embedded power source for LED fluorescent tube
KR100884279B1 (en) * 2008-10-30 2009-02-17 (주)흥화전자 Led fixture for fluorecent lamp socket
CN201383889Y (en) * 2009-04-01 2010-01-13 谢建强 LED circuit

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US9871404B2 (en) 2011-12-12 2018-01-16 Cree, Inc. Emergency lighting devices with LED strings
CN102932997A (en) * 2012-11-09 2013-02-13 浙江恒曼光电科技有限公司 LED (light-emitting diode) fluorescent lamp drive circuit and LED lamp tube
US10104723B2 (en) 2013-01-24 2018-10-16 Cree, Inc. Solid-state lighting apparatus with filament imitation for use with florescent ballasts
CN104938036A (en) * 2013-01-24 2015-09-23 克里公司 LED lighting apparatus for use with AC-output lighting ballasts
CN104938036B (en) * 2013-01-24 2018-09-18 克里公司 Utilize the LED light device of the lighting ballast of AC outputs
US10117295B2 (en) 2013-01-24 2018-10-30 Cree, Inc. LED lighting apparatus for use with AC-output lighting ballasts
CN103561500A (en) * 2013-10-24 2014-02-05 常熟恒富昱光电有限公司 Output-power-adjustable LED drive circuit compatible with electronic ballast
CN104640322B (en) * 2015-02-06 2017-11-28 深圳市豪恩光电照明股份有限公司 The LED lamp tube driver of compatible electronic ballast
CN104640322A (en) * 2015-02-06 2015-05-20 深圳市豪恩光电照明有限公司 LED (Light Emitting Diode) lamp tube driver compatible with electronic ballast
CN108886853A (en) * 2016-03-31 2018-11-23 飞利浦照明控股有限公司 Conversion circuit between flourescent ballast and LED
CN105916244A (en) * 2016-05-25 2016-08-31 欧普照明股份有限公司 LED driving controller, driving method, LED lighting tube and lighting system
CN105916244B (en) * 2016-05-25 2019-01-22 欧普照明股份有限公司 LED drive control device, driving method, LED lamp tube and lighting system
CN106102255A (en) * 2016-08-03 2016-11-09 欧普照明股份有限公司 Simulation filament impedances circuit, LED lamp tube and LED illumination System

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Publication number Publication date
WO2011155712A3 (en) 2012-02-02
WO2011155712A2 (en) 2011-12-15
CN102278722B (en) 2013-11-06
KR100996670B1 (en) 2010-11-25
WO2011155712A9 (en) 2012-03-08

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