CN207635297U

CN207635297U - Led daylight lamp

Info

Publication number: CN207635297U
Application number: CN201721681143.9U
Authority: CN
Inventors: 张跃强; 刘新通; 蒋泽权
Original assignee: Jiaxing Super Lighting Electric Appliance Co Ltd
Current assignee: Jiaxing Super Lighting Electric Appliance Co Ltd
Priority date: 2017-01-18
Filing date: 2017-12-06
Publication date: 2018-07-20
Anticipated expiration: 2027-12-06

Abstract

The utility model discloses a kind of LED daylight lamp, including：Fluorescent tube, end have the pin for inputting external drive signal；Rectification circuit is coupled with the pin；The rectification circuit is used to carry out rectification to the external drive signal, to generate rectified signal；Filter circuit is used to be filtered the rectified signal, to generate filtered signal；LED module is used to receive the filtered signal to shine；Ballast compatible circuit with bilateral diode；The ballast and current circuit are used to make the LED daylight lamp be compatible with different types of ballast according to the external drive signal；The bilateral diode is configured as, and when the external drive signal is AC signal, the ballast compatible circuit is by releasing the electric energy generated by the external communication drive signal without by the DC offset voltage triggering and conducting of the external communication drive signal.The compatibility emergency type ballast of the various types of electrical ballasts of compatibility and close friend that the LED daylight lamp can be friendly.

Description

LED daylight lamp

Technical field

The utility model is related to lighting area more particularly to a kind of LED daylight lamps.

Background technology

LED lighting technology it is positive fast-developing and instead of traditional incandescent lamp and fluorescent lamp.Compared to being filled with indifferent gas For the fluorescent lamp of body and mercury, LED daylight lamp lamp need not filling mercury.Therefore, it is various by seem conventional fluorescent bulbs and In the lighting system of household or workplace that the illumination option such as fluorescent tube is dominated, LED daylight lamp lamp it is hardly surprising that gradually at The illumination option expected for people's height.The advantages of LED daylight lamp lamp the durability comprising promotion and service life and compared with low power consuming. Thus it is contemplated that after all factors, LED daylight lamp lamp will be the illumination option of escapable cost.

Due to traditional existing longer time of incandescent lamp and fluorescent lamp, matching connection has ballast.With people Energy-efficient consciousness improves, and LED illumination instead of traditional incandescent lamp and fluorescent lamp, reach common understanding by shape from now on.Using rectification at present There are many occasion of device, and LED daylight lamp lamp how friendly compatibility existing variety classes need to be considered when being substituted for LED daylight lamp lamp Whole ballast become more urgent.

Commercially available common electric ballast mainly can be divided into instantaneous starting type (Instant Start, abbreviation IS type) electronics Ballast, preheating start-up type (Program Start, abbreviation PS type) two kinds of electric ballast.Electric ballast has resonance electricity Road, driving design are matched with the load characteristic of fluorescent lamp, i.e., electric ballast is capacitive component before lighting in fluorescent lamp, And after lighting it is resistive device, corresponding startup program is provided, and fluorescent lamp is allow correctly to light.And LED is non-thread Property component, it is entirely different with the characteristic of traditional fluorescent lamp.The forward voltage of LED inversely, such as uses constant pressure with temperature Mode, when

LED long-term works or due to environment temperature rise junction temperature T2 is raised to by T1 when, LED will be increased sharply by electric current, be more than Its rated value, the increase of electric current further means that the increase of fever, if heat cannot shed in time, electric current will increase without limitation Go down, until LED is burnt.Be not in then such case according to current constant mode, the raising of temperature only results in modulating voltage It reduces, the loss of system is reduced, can't be impacted to the service life of LED instead.Therefore the LED generally use constant currents of mainstream Mode, the electric current avoid the reduced service life for leading to LED because electric current is excessive within the rated value of LED.

Ballast, in certain occasions due to the requirement of fire-fighting, is equipped with emergency ballast in addition to above-mentioned electric ballast Emergency lighting；Output high frequency (typically not greater than 20KHz) unidirectional pulse formula electric current, electric current and electricity when emergency ballast works The electric current of the output of subtype ballast is different, and (size of current exported when usual emergency ballast work is no more than 50mA, and electric The electric current of sub-ballast work output is in 200mA or so).Since the difference of drive signal is compatible to the LED days of electric ballast Light lamp lamp possibly can not be compatible with emergency ballast, and be unfavorable for the large-scale popularization and application of LED daylight lamp.

In addition, the LED daylight lamp of compatible emergency ballast, when matching lighting with certain PS types, IS type electric ballasts, There are DC offset voltages for PS types, IS types ballast itself, and the compatible circuit of LED daylight lamp can be made to judge by accident, lead to LED Fluorescent lamp is unable to lighting.To be unfavorable for the large-scale popularization and application of LED daylight lamp.

In view of the above problem, the utility model set forth below and embodiment.

Utility model content

Many embodiments of the abstract description herein about " the utility model ".However the vocabulary " the utility model " is only For some embodiments (in spite of in claim) for describing to disclose in this description, rather than it is possible to Embodiment complete description.The some embodiments for being described below as each features or aspect of " the utility model " can not With mode independence or merge to form a LED straight lamps or in which a part.

The utility model provides a kind of new LED daylight lamp and its various aspects (with feature), to solve above-mentioned ask Topic.

The utility model offer adopts the following technical scheme that：

A kind of LED daylight lamp, including：

Fluorescent tube 1, end have pin A1, A2, B1, B2 for inputting external drive signal；

Rectification circuit 510 is used to carry out rectification to the external drive signal, to generate rectified signal；

Filter circuit 520 is used to be filtered the rectified signal, to generate filtered signal；

LED module 530 is used to receive the filtered signal to shine；And

Ballast compatible circuit 5510；The ballast and current circuit 5510 are used to be made according to the external drive signal described LED daylight lamp is compatible with different types of ballast；The ballast compatible circuit 5510 is configured as：When the external drive signal For AC signal when, the ballast compatible circuit is by releasing the electric energy generated by the external communication drive signal without by institute State the DC offset voltage triggering and conducting of external communication drive signal.

A kind of LED daylight lamp, including：

LED module 530 is used to receive the filtered signal to shine；

Current limiting capacitance 541 is coupled to the LED module 530 and for adjusting the electric current for flowing through the LED module 530；With And

Ballast compatible circuit 5510；The ballast and current circuit 5510 are parallel to both ends and the use of the current limiting capacitance 541 In making the LED daylight lamp be compatible with different types of ballast according to the external drive signal；The ballast compatible circuit 5510 are configured as：When the external drive signal is AC signal, the electric current stream of the external communication drive signal generation The current limiting capacitance 541 is crossed, and the ballast compatible circuit is by the electric energy generated by the external communication drive signal of releasing Without the conducting that is triggered.

Preferably, the LED module 530 is coupled with current limiting capacitance 541；The current limiting capacitance 541 flows through institute for adjusting State the electric current of LED module 530；The ballast compatible circuit 5510 is parallel to the both ends of the current limiting capacitance 541.

Preferably, the ballast compatible circuit 5510 includes bidirectional triode thyristor 5511, bilateral diode 5514, the first capacitance 5516, first resistor 5518；The ends A of the bidirectional triode thyristor 5511 are electrically connected one end of the current limiting capacitance 541, described double To silicon-controlled 5511 the other end be electrically connected first capacitance 5516 one end and the current limiting capacitance 541 it is another End；The triggering end of the bidirectional triode thyristor 5511 is electrically connected one end of the bilateral diode 5514；The bilateral diode 5514 other end is electrically connected one end of the first resistor 5518 and the other end of first capacitance 5516；Described The other end of one resistance 5518 is electrically connected one end of first capacitance 5516 and the ends A of the bidirectional triode thyristor 5511.

Preferably, first capacitance 5516, which is parallel with, releases energy component；The energy component of releasing can consume the external communication The energy that the first capacitance of DC offset voltage pair 5516 of drive signal generates so that the voltage of first capacitance 5516 will not Reach the trigger voltage of the bilateral diode 5514.

Preferably, is in series between the other end of the first resistor 5518 and the ends A of the bilateral diode 5514 Two resistance 5515

It is in series with the second capacitance between the other end of the first resistor 5518 and one end of first capacitance 5516 5517。

Preferably, second capacitance 5517, which is parallel with, releases energy component；The energy component of releasing can consume the external communication The energy that the second capacitance of DC offset voltage pair of drive signal generates so that the voltage of second capacitance is not up to described The trigger voltage of bilateral diode 5514.

Preferably, the energy component of releasing includes releasing energy resistance 5519.

Preferably, the resistance value for releasing energy resistance 5519 is 1K ohm to 1M ohm.

Preferably, inductance 5512 is in series between the other end of the bidirectional triode thyristor 5511 and the current limiting capacitance 541； The other end of the bidirectional triode thyristor 5511 is electrically connected one end of the inductance 5512, and the other end of the inductance 5512 is electrical Connect the other end of the current limiting capacitance 541；One end of first capacitance 5516 is electrically connected one end of the inductance 5512.

Preferably, the inductance value of the inductance 5512 is 2mH to 15mH.

Preferably, the ballast compatible circuit 5510 further includes the other end for being series at the inductance 5512 and the current limliting Protective device 5513 between the other end of capacitance 541；The protective device is more than specified for the electric current that inductance 5512 flows into Starting protection when electric current.

Preferably, the protective device 5513 is Thermal Cutoffs or rated current type fuse.

Preferably, the activation threshold value of the bilateral diode is 10 volts to 100 volts.

Preferably, the activation threshold value of the bilateral diode is 50 volts.

Preferably, the ballast compatible circuit 5510 is configured as：When the external drive signal is AC signal, institute The electric current for stating the generation of external communication drive signal flows through the current limiting capacitance 541.

Preferably, the ballast compatible circuit 5510 is configured as：When the external drive signal is DC signal, Described in the current bypass that the ballast compatible circuit is generated by the external drive signal triggering and conducting, the external drive signal Current limiting capacitance 541.

The scheme for the LED daylight lamp that the application proposes one or a combination set of has the following advantages：

①：Can reduce electric ballast noise (noise matched with LED daylight lamp by electric ballast cause it is humorous It shakes generation)；

②：The compatibility emergency type ballast of the various types of electrical ballasts of compatibility and close friend that can be friendly；

③:LED daylight lamp can normally be started in electrical network low voltage；

④:Reduce power consumption, raising efficiency.

With reference to following description and accompanying drawings, the particular implementation of the utility model is disclosed in detail, specifies this practicality Novel principle can be in a manner of adopted.It should be understood that the embodiment of the utility model in range not thus by Limitation.In the range of the spirit and terms of appended claims, the embodiment of the utility model includes many changes, modifications With it is equivalent.

The feature for describing and/or showing for a kind of embodiment can be in a manner of same or similar one or more It is used in a other embodiment, it is combined with the feature in other embodiment, or substitute the feature in other embodiment.

It should be emphasized that term "comprises/comprising" refers to the presence of feature, one integral piece, step or component when being used herein, but simultaneously It is not excluded for the presence or additional of one or more other features, one integral piece, step or component.

Description of the drawings

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those skilled in the art, without having to pay creative labor, Other drawings may also be obtained based on these drawings.

Fig. 1 is the utility model embodiment LED daylight lamp stereogram；

Fig. 2A-Fig. 2 B are the utility model embodiment LED daylight lamp stereogram exploded view；

Fig. 3 A- Fig. 3 E are the circuit diagram of the LED daylight lamp of the embodiments of the present invention；

Fig. 4 A- Fig. 4 H are the circuit diagram of compatible circuit in Fig. 3；

Fig. 5 is the oscillogram containing DC offset voltage in electric ballast output signal.

Specific implementation mode

In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality The attached drawing in example is applied, technical solutions in the embodiments of the present application is clearly and completely described, it is clear that described implementation Example is merely a part but not all of the embodiments of the present application.Based on the embodiment in the application, this field is common It is new should all to belong to this practicality for the every other embodiment that technical staff is obtained without making creative work The range of type protection.

It should be noted that when element is referred to as " being set to " another element, it can be directly on another element Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be directly connected to To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ", " right side " and similar statement for illustrative purposes only, are not offered as being unique embodiment.

Unless otherwise defined, all of technologies and scientific terms used here by the article is led with the technology for belonging to the utility model The normally understood meaning of technical staff in domain is identical.Terminology used in the description of the utility model herein only be The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein "and/or" packet Include any and all combinations of one or more relevant Listed Items.

Fig. 1-Fig. 2 is please referred to, a kind of embodiment of the utility model provides a kind of LED daylight lamp, including：Fluorescent tube 1 is set to Lamp plate 2 in fluorescent tube 1, and it is socketed on two lamp caps 3 at 1 both ends of fluorescent tube respectively；The end that lamp cap 3 passes through glue sticking and fluorescent tube 2 Portion, lamp plate 2 are affixed on the inner surface of fluorescent tube 1 by bonding agent.Wherein fluorescent tube 1 can be the peripheral framework of elongate, using plastics Material fluorescent tube or glass material fluorescent tube, the present embodiment are easy to avoid traditional glass fluorescent tube using the glass lamp for having strengthening section Rupture and the electric shock accidents that causes by electric leakage of rupture and plastic lantern tube capacity problem easy to aging.

In other examples, fluorescent tube 1 can also be the U-shaped peripheral framework of elongate or the external surrounding frame of 2 elongates The U-shaped LED daylight lamp that body is formed by connector (connector can also be the telescopic applications to cope with different).

With continued reference to Fig. 2A, 2B, lamp plate 2 is equipped with several light emitting diodes 202 (can also be expressed as LED unit), Several light emitting diode composition LED components 632 (LED component can also be expressed as light emitting diode or light emitting diode group), Lamp cap 3 is embedded with lamp circuit module 5 (also referred to as power module), and in the embodiment of power supply externally positioned type, lamp circuit module 5 is matched It is placed in the outside of LED daylight lamp), pass through the conductive layer (not shown) electricity of lamp plate 2 between LED component 632 and lamp circuit module 5 Property connection.

Wherein, lamp circuit module 5 can be single body (i.e. all driving power components are all integrated in a module), And in the lamp cap 3 of 1 one end of fluorescent tube；Or lamp circuit module 5 can also be divided into two parts, referred to as double individuals are (i.e. all Power supply module is separately positioned in two components), and two parts are embedded in the lamp cap 3 at LED daylight lamp both ends respectively.Or it is external In the outside of LED daylight lamp, it is connect with LED daylight lamp by conducting wire.Or part (or whole) member of lamp circuit module 5 Device is equipped on lamp plate 2, can optimize the size of the circuit board of lamp circuit module 5 in this way, the further size for optimizing lamp cap.

Next Fig. 2 and Fig. 3 A- Fig. 3 E, description lamp circuit module 5 is combined (to be also referred to as power supply 5 in certain embodiments) With the connection topology of lamp plate 2 and LED component 632.It please refers to shown in Fig. 2, the end of the lamp cap 3 of LED daylight lamp is configured with hollow Conductive pin 301 (solid conductive pin also can).With reference to figure 2 and Fig. 3, hollow conductive pin 301 is combined electrically to connect respectively equipped with 4 altogether 4 pins are connected to (that is, the first pin A1 of side, the second pin A2；And third pin B1, the 4th pin of the other side B2)。

In other embodiments, the end of side lamp cap 3 is configured with a hollow conductive pin 301, and at this moment the 2 of side connect Foot short circuit draws a pin to by setting.

Next the electrical block diagram of description LED daylight lamp.

Such as the circuit diagram for the LED daylight lamp that Fig. 3 A are the utility model embodiment.LED daylight lamp 500 includes：LED Unit 630；And the lamp circuit module for making LED module lighting；Lamp circuit module, including rectification unit 510, filtering Unit 520, compatible circuit 540, releasing can circuit 550, ballast compatible circuit 1510.

Rectification unit 510 is electrically connected the first pin A1, the second pin A2 of the LED daylight lamp 500, should for that will couple An at least one of AC rectification of first pin A1 and second pin A2 are at direct current.

Filter unit 520 is electrically connected the rectification unit 510 to receive the direct current, and the direct current is filtered.

LED unit 630 is electrically connected the filter unit 520, and corresponds to the direct current of filtering and shine.

Compatible circuit 540 is electrically connected the third pin B1 and the 4th pin B2.Compatible circuit 540 includes first unidirectional Current path I1 and the second unidirectional current path I2.First unidirectional current path I1 is electrically connected the LED unit 630, to allow Electric current flows to one of third pin B1 and four pin B2 by LED unit 630.Second unidirectional current path I2 is electrically connected should Filter unit 520, to allow electric current to flow to filter unit 520 by one of third pin B1 and four pin B2.

In the present embodiment, rectification unit 510 is a bridge rectifier, including diode 511,512,513 and 514, For carrying out full-wave rectification to alternating current, to generate direct current.

One anode of diode 513 is electrically connected one end of the filter unit 520, and cathode is electrically connected the diode 511 An anode, and a cathode of the diode 511 is electrically connected the other end of the filter unit 520.Diode 511 and 513 Tie point is electrically connected first pin A1.The anode of diode 514 is electrically connected one end of the filter unit 520, cathode electricity Property connection diode 512 anode, and the cathode of diode 512 is electrically connected the cathode and filter unit 520 of diode 511 The other end.The tie point of diode 512 and 514 is electrically connected second pin A2.

Rectification unit 510 (being referred to as rectification circuit 510) can also be other kinds of full-wave rectifying circuit or half Wave rectification circuit, the function to be reached without influencing the utility model.

In the present embodiment, which includes capacitance 521.The filtering list Member 520 receives the direct current after rectified 510 rectification of unit, and filters out the radio-frequency component in direct current.Filtered unit 520 is filtered Direct current after wave, waveform are a smooth DC waveform.

The filter unit 520, which can also be other, can filter out the filter circuit of radio-frequency component (as additionally increased concatenated electricity Sense and another capacitance and in parallel with capacitance 521 be formed by pi type filter), be intended to reach without influence technical solutions of the utility model The function of arriving.

In the present embodiment, LED unit 630 (being referred to as LED module 630) includes LED component 632 (by several Light emitting diode 202 forms, and sees Fig. 2A or 2B), LED component 632 can include one by several light emitting diodes 202 concatenated branch of 202 concatenated branches or a plurality of several light emitting diodes (branch is in parallel again), light emitting diode list The connection of member 202 can be the more in sequential series or 2 or more branches first in parallel formed, then the branch concatenated shape again Formula.With the different power demand of correspondence, required illumination is provided.

In the present embodiment, compatible circuit 540 includes diode 515 and 516, capacitance 541, ballast compatible circuit 1510. The cathode of diode 515 is electrically connected the filter unit 520, anode the moon with one end of capacitance 541 and diode 516 respectively Pole is electrically connected, and the anode of diode 516 is electrically connected the filter unit 520.The other end of capacitance 541 is electrically connected ballast Third pin B1 and the 4th pin is electrically connected in the other end of one end of compatible circuit 1510, ballast compatible circuit 1510 B2。

In the present embodiment, it includes resistance 551 and 552, the branch after the series connection of resistance 551,552 and filter to release energy circuit 550 Wave circuit 520 is in parallel, with the flicker for preventing LED daylight lamp from occurring when turning off the light.It can also be other such as one to release energy circuit 550 Or more resistance and other forms release can circuit, the function to be reached without influencing the utility model.Energy is released that is, can be used as As long as the circuit of circuit 550 can be realized：One scheduled current of circulation or more can be continued by releasing energy circuit by this when power remove .It can be determined according to the current amplitude size of LED component 632 according to this scheduled current.

Fig. 3 B are the circuit diagram of the utility model second embodiment；Fig. 3 B and Fig. 3 A difference lies in：Increase simulation Heater chain 570, at this moment the scheme of Fig. 3 A may be used on the occasion of PS type ballasts.

Embodiment adds two simulation heater chains 570, which respectively contains concatenated two electricity Resistance 573 and 574 and concatenated capacitance 571 and 572, and the tie point of two resistance 573 and 574 couple two capacitance 571 and 572 tie point.When LED daylight lamp is installed on the tube face with pre- hot function (such as：Fluorescent tube with electric ballast Seat), in warm, the electric current of AC signal can flow through the resistance 573 and the 574, capacitance of the two simulations heater chain 570 571 and 572, and achieve the effect that simulate filament.In this way, electric ballast can normally spend filament pre-heating rank on startup Section, and ensure electric ballast and normally start.

Such as the circuit diagram for the LED daylight lamp that Fig. 3 C are the utility model 3rd embodiment.LED daylight lamp 500 includes： LED module 530；And the lamp circuit module for making LED module lighting；Lamp circuit module, including the first rectification unit 510, compatible circuit 540 and simulation heater chain 570.

LED module 530 is electrically connected rectification unit, wherein the branch and filter capacitor that are made of several LED components 632 521 branch circuit parallel connection, and correspond to the direct current of filtering and shine；The branch of capacitance 521 and the branch of several LED components 632 are simultaneously The branch that connection is formed is electrically connected one end of discharge tube DB1 branches, and the other end of discharge tube branch is electrically connected diode 512 The anode of anode and diode 514.In other implementations, the also parallel connection of the branch of capacitance 521 releases energy circuit (in Fig. 3 A Energy circuit 550 is released, this will not be detailed here).

Compatible circuit 540 through simulate heater chain 570 be electrically connected the LED daylight lamp 500 third pin B1 and this Four pin B2.

Compatible circuit 540 includes diode 513, diode 514, capacitance 541 (also referred to as current limiting capacitance), ballast compatibility electricity Road 1510；Diode 513, the series connection of diode 514 form halfwave rectifier branch, and the cathode of wherein diode 513 is electrically connected to The positive terminal of 632 branch of the cathode of diode 511, one end of the branch of capacitance 521 and several LED components, the sun of diode 513 Pole is connected to the cathode of diode 514；The anode of diode 514 is electrically connected the anode and discharge tube DB1 branches of diode 512 The other end.One end of capacitance 541 is electrically connected the tie point of diode 513 and diode 514, the other end electricity of capacitance 541 Property connection simulation heater chain 570, the capacitance 541 be used for limit inflow LED module 530 electric current；Ballast compatible circuit 1510 It is parallel to capacitance 541, which includes a MOS switch.

Ballast compatible circuit 1510 is used to detect the size for the electric current for flowing into LED daylight lamp 500, intelligent identification LED days Light lamp 500 is applied still is applied to emergency ballast in electric ballast.

In the present embodiment, filter capacitor can choose thin-film type capacitance or patch type capacitance；If choose patch type capacitance, The capacitance is set to power module, through-hole is arranged in the lower section of the connection of the capacitance of power module, which can reduce patch The noise that capacitance is caused by piezoelectric effect.The shape of through-hole can be, round, and ellipse is rectangular etc..

Certainly, in other examples, it can be configured on power module and through-hole is all set at patch capacitor field.

In the present embodiment, simulation heater chain 570, the simulation heater chain is respectively set in the both ends of LED daylight lamp 500 570 are formed by the branch circuit parallel connection of the branch and resistance 573 of capacitance 571.In practical application, an X2 safety can be selected in capacitance 571 Capacitance or 2 ceramic condensers, resistance 573 are connected by 2 (or more), in this way to improve the reliability of simulation heater chain.When When LED daylight lamp is installed on the tube face with pre- hot function (such as：Tube face with electric ballast), preheated The electric current of journey, AC signal can flow through the resistance 572, the capacitance 571 of the two simulations heater chain 570, and reach simulation lamp The effect of silk.In this way, electric ballast can normally spend the filament pre-heating stage on startup, and ensure that electric ballast is normal Start.Simulation heater chain in certain present embodiment also can be used simulated as shown in Fig. 3 B schemes heater chain or its It simulates filament pre-heating such as negative temperature coefficient resister (NTC) as long as can realize.

As shown in Figure 1, Figure 2, shown in Fig. 3 C and Fig. 4 G, a kind of LED daylight lamp includes：Fluorescent tube 1, end have for defeated Enter pin A1, A2, B1, B2 of external drive signal；Rectification circuit 510 is used to carry out rectification to the external drive signal, To generate rectified signal；Filter circuit 520 is used to be filtered the rectified signal, to generate filtered signal； LED module 530 is used to receive the filtered signal to shine；Ballast compatible circuit 5510；The ballast and current circuit 5510 according to the external drive signal for making the LED daylight lamp be compatible with different types of ballast；The ballast compatibility Circuit 5510 is configured as：When the external drive signal is AC signal, the ballast compatible circuit is by releasing by institute The electric energy of external communication drive signal generation is stated without by the DC offset voltage triggering and conducting of the external communication drive signal. Specifically, the different types of ballast may include electric ballast and emergency ballast etc..

A kind of LED daylight lamp is provided in another embodiment, including：Fluorescent tube 1, end have for inputting external drive Pin A1, A2, B1, B2 of dynamic signal；Rectification circuit 510 is used to carry out rectification to the external drive signal, whole to generate Signal after stream；Filter circuit 520 is used to be filtered the rectified signal, to generate filtered signal；LED module 530, it is used to receive the filtered signal to shine；Current limiting capacitance 541 is coupled to the LED module 530 and for adjusting Flow through the electric current of the LED module 530；And ballast compatible circuit 5510；The ballast and current circuit 5510 are parallel to described Both ends of current limiting capacitance 541 and for making the LED daylight lamp be compatible with different types of ballast according to the external drive signal Device；The ballast compatible circuit 5510 is configured as：When the external drive signal is AC signal, the external communication drives The electric current that dynamic signal generates flows through the current limiting capacitance 541, and the ballast compatible circuit is by releasing by the external communication The electric energy that drive signal generates is without the conducting that is triggered.

In other implementations, simulation heater chain 570 can not be used yet, LED daylight lamp may not apply at this time The occasion of PS types ballast (ballast of pre- hot function).

In other implementations, Thermal Cutoffs is set at least one pin of above-mentioned LED daylight lamp 500.It is logical It is 125 ° (120 °~140 ° of the temperature ranges chosen depending on application scenario), the temperature of rated current 1A or 2A often to choose temperature specification Fuse.

In other implementations, filter capacitor 521 can or string in parallel by multiple single capacitances simultaneously (when such as 4 capacitances, The branch formed of being connected respectively by 2 is in parallel again) it constitutes.

In other implementations, being released in the both ends parallel connection of the branch of filter capacitor 521 can resistance.Preferably, this is released Energy resistance is made of at least 1 resistance series connection.

Next combining Fig. 4 F, (circuit that Fig. 4 F are parallel to 541 branch of capacitance for ballast compatible circuit 1510 in Fig. 3 C is opened up Flutter) carrying out the detailed action mechanism for describing Fig. 3 C schemes, (electric current of the output of electric ballast work is larger, usually in 200mA Left and right；And the electric current exported when emergency ballast work is smaller, typically not greater than 50mA)；When LED daylight lamp 500 is powered, MOS Switch 4562 is connected；

When applied to electric ballast, since the electric current of electric ballast output is larger (200mA or so), resistance 4564 On sampled voltage it is larger, give capacitance 4565 to charge via resistance 4563, the voltage of capacitance 4565 increases, and reaches triode 4567 Activation threshold value, triode 4567 is connected, and the Vcc terminal voltages of IC chip 4561 are pulled low, and IC chip 4561 does not work at this time, MOS switch 4562 ends；At this moment current limiting capacitance 541 accesses circuit, then discharges via capacitance 541, and the voltage at the ends Vcc rises, Reach the threshold value of setting, IC chip 4561 is started to work, and OUT terminal exports trigger signal, and MOS switch 4562 is connected.At this time by Larger (200mA or so) in the electric current of electric ballast output, the sampled voltage on resistance 4564 is connected compared with triode 4567, IC The Vcc terminal voltages of chip 4561 are dragged down again, and IC chip 4561 does not work at this time, and MOS switch 4562 ends, repeatedly. 4562 periodic conduction and cut-off of MOS switch.

Its VCC terminal voltage of different IC chips is also different, and in the present embodiment, Vcc operating voltages select 21V, charging Time is pulled low the time of (blanking voltage, such as 10V) much larger than Vcc voltage.Thus while the conducting in 4562 period of MOS switch/ Cut-off, the identification range of the remote superman's eye of frequency of conduction and cut-off, so, user is the flicker of imperceptible fluorescent lamp at this time.

In addition, in the present embodiment, capacitance 541 can also flow through LED's by choosing different capacitances to set Electric current.Due to there is capacitance 541 (play and adjust electric current), the electric current of LED is flowed through in adjustment, can reduce electric ballast and make an uproar Sound (electric ballast matches the resonance caused with LED daylight lamp).

When should be in emergency ballast, due to emergency electronic ballast output current it is smaller (<50mA or so), resistance 4564 On sampled voltage it is smaller, give capacitance 4565 to charge via resistance 4563, since the sampled voltage on resistance 4564 is smaller, up to not To the activation threshold value of triode 4567, triode 4567 ends, therefore MOS switch 4562 maintains constant conduction, in this way by capacitance 541 branch bypass.

In present embodiment, the threshold value that discharge tube DB1 chooses is between 250V~600V.Preferably, threshold value chooses 250V, 300V, 350V, 400V.If the threshold value of discharge tube DB1 conducting is too small, it is to have asking for compatibility when certain ballasts matchings Topic, cannot successfully light LED daylight lamp.Itself main reason is that：When LED daylight lamp is powered, the also abnormal work of electric ballast Make, the discharge tube of LED daylight lamp has been connected (impedance changes at this time), electric ballast erroneous judgement load (the LED days connected Light lamp) it is abnormal.

Design in this way is advantageous in that：

①：Due to the presence of capacitance 541 (also referred to as current limiting capacitance), LED current can be made adjustable by selecting suitable parameter Section, improves the efficiency of LED lamp tube.

②：So that LED daylight lamp can compatible electronic ballast and compatible emergency ballast.

③：The big problem of part ballast noise can be reduced, and (electric ballast matches the humorous of initiation with LED daylight lamp It shakes).

④：LED daylight lamp can be successfully lighted when improving electrical network low voltage.

Certainly, the embodiment of Fig. 4 F can also be used in the scheme of Fig. 3 D.

Such as the circuit diagram for the LED daylight lamp that Fig. 3 D are the utility model fourth embodiment.If Fig. 3 D schemes are Fig. 3 C The deformation of embodiment, with Fig. 3 C schemes difference lies in：

①：The embodiment for simulating heater chain 570 is different, 570 groups of the simulation heater chain at 500 both ends of LED daylight lamp At can different (simulating the composition of heater chain 570 in other examples can be identical), the simulation heater chain 570 of side, packet Contain：Capacitance 571, capacitance 572, capacitance 575, capacitance 576, resistance 573, resistance 574；Capacitance 571 and 572 concatenated branch of capacitance With after 576 concatenated branch circuit parallel connection of capacitance 575 and capacitance with 574 concatenated branch circuit parallel connection of resistance 573 and resistance；Capacitance 571 with The tie point and capacitance 575 of capacitance 572 are electrically connected with the tie point of capacitance 576.The simulation heater chain 570 of the other side, packet Contain：Capacitance 571, capacitance 572, resistance 573；The branch circuit parallel connection of capacitance 571 and capacitance 572 concatenated branch and resistance 573.

②：The first pin A1, the second pin A2 of side；And on third pin B1, the 4th pin B2 of the other side all It is connected with Thermal Cutoffs, when striking sparks for fluorescent tube, disconnects fluorescent tube in the electric connection of lamp holder.

③:Rectification unit 510 is full wave rectifying unit.

④：The embodiment of ballast compatible circuit 1510 is different, specifically, the embodiment of compatible circuit such as Fig. 4 G institutes Show.

Compatible circuit 5510；Including：Bidirectional triode thyristor 5511, inductance 5512, protective device 5513, bilateral diode 5514, resistance 5515, capacitance 5516, capacitance 5517, resistance 5518；The ends A of bidirectional triode thyristor 5511 are electrically connected capacitance 541 One end, the other end of bidirectional triode thyristor 5511 are electrically connected the ends a of inductance 5512, and the ends b of inductance 5512 are electrically connected protection dress 5513 one end is set, the other end of protective device 5513 is electrically connected the other end of capacitance 541；The triggering of bidirectional triode thyristor 5511 End is electrically connected one end of bilateral diode 5514, the other end of bilateral diode 5514 be electrically connected resistance 5518 one end and One end of capacitance 5516, the ends B of capacitance 5516 are electrically connected the ends a of inductance 5512, and the ends b of resistance 5518 are electrically connected resistance 5515 one end and one end of capacitance 5517, the other end of resistance 5515 are electrically connected the ends A of bidirectional triode thyristor 5511；Capacitance 5517 ends b are electrically connected the ends B of capacitance 5516 and the ends a of inductance 5512.

The action mechanism that Fig. 3 D schemes are described below is connect,

It applies in the occasion of electric ballast, the ac signal of electric ballast work output high frequency flows through capacitance 541。

It applies in the occasion of emergency ballast, if electric current flows through capacitance when emergency ballast output is ac signal 541；If output is DC signal or pulse DC electric signal, the capacitance 541 is bypassed；Specifically：It should when after energization Electric signal is added in the both ends of capacitance 541, and capacitance 5517 charges by resistance 5515, and capacitance 5516 is carried out by resistance 5518 Charging, after continuing for some time, capacitance 5517, capacitance 5516 voltage be gradually increased to be more than bilateral diode 5514 (sometimes Also referred to as two-way trigger tube) threshold values, after bilateral diode 5514 triggers, the triggering end of bidirectional triode thyristor 5511 (sometimes referred to as door Pole) constant current is flowed through, bidirectional triode thyristor 5511 is connected, to bypass the capacitance 541.

In above-described embodiment, inductance 5512 has the function of inhibiting current break, the virtual value of electric current also can be improved, in turn The brightness of fluorescent tube can be improved.In addition, inductance has afterflow (carrying out afterflow to the pulse DC electric signal that emergency ballast is sent out), The effect of energy storage, the maximized emergency ballast that absorbs export electricity.

In above-described embodiment, the selected value of Thermal Cutoffs (FU1~FU4) is preferably chosen between 100 °~150 ° 125 ° or 130 °.

In above-described embodiment, protective device 5513 can choose Thermal Cutoffs, rated value between 100 °~140 °, compared with 120 ° of good selection.In setting, the rated value that Thermal Cutoffs is chosen is less than the volume that Thermal Cutoffs (FU1~FU4) is chosen Definite value.Or rated current type fuse is chosen, specified current value chooses 100mA~500mA, and preferably selection 100mA~ 200mA, such as 100mA, 150mA, 200mA etc..Other control units can also be chosen, by the control unit detect temperature or Current information, reaches the threshold value of setting, and trigger protection can (such as fuse the fuse).The protective device 5513 is used in electronics Ballast occasion, bidirectional triode thyristor 5511 cause the high frequency high current that electric ballast exports to flow into inductance 5512 by false triggering (being equivalent at this point, contingency mode is entered by mistake through, because under contingency mode), and start the protective device.Under contingency mode, ballast of meeting an urgent need The electric current of device output is typically not greater than 50mA, and under electric ballast pattern, the electric current of electric ballast output is usually in 200mA Left and right.

In above-described embodiment, the inductance value of inductance 5512 preferably chooses 2mH~10mH, the present embodiment between 2mH~15mH Middle inductance value chooses 8mH.

In other examples, protective device 5513 can be omitted.Also inductance 5512 can be omitted.

The deformation of embodiment as Fig. 4 G scheme compatible circuits,

①：Resistance 5515 and capacitance 5517 can be omitted, at this moment the b of resistance 5518 is electrically connected the A of bidirectional triode thyristor 5511 End.

②：Resistance 5518 and capacitance 5516 are omitted, at this moment the other end of bilateral diode is electrically connected the one of capacitance 5517 End.

Applicant is had found in propulsion if Fig. 4 G compatible circuits scheme LED straight lamps are in the IS types with certain model, PS types Electric ballast has incompatible phenomenon when matching, by further analyzing, in the electric ballast output signal of the model Containing DC offset voltage (as shown in figure 5, to contain DC offset voltage in the electric ballast output signal of certain model Oscillogram), it can charge to capacitance in compatible circuit, meeting false triggering compatible circuit (triggers the two-way controllable of compatible circuit Silicon triggers compatible circuit), lead to the electric ballast of the incompatible model of lamp, Fig. 4 G compatible circuits schemes are carried out for this It improves, improved circuit signal is as shown at figure 4h.Wherein, the ballast compatible circuit is configured as working as the external drive signal For AC signal when, the ballast compatible circuit is by releasing the electric energy generated by the external communication drive signal without by institute State the DC offset voltage triggering and conducting of external communication drive signal.And/or the ballast compatible circuit 5510 is configured as： When the external drive signal is DC signal, the ballast compatible circuit by the external drive signal triggering and conducting, Current limiting capacitance 541 described in the current bypass that the external drive signal generates.

Difference lies in release can component for parallel connection on capacitance 5516 for compatible circuit as shown at figure 4h and Fig. 4 G compatible circuits 5519。

Next description increases the mechanism for releasing energy component 5519：

IS types, PS types electric ballast at work, since there are DC offset voltage (sometimes referred to as direct currents point for itself Amount), there are bias voltage at the both ends of such bidirectional triode thyristor 5511 (as shown in oblique line with the arrow in Fig. 5)；Direct current biasing electricity Pressure can be such that the voltage (through accumulation after a period of time) of capacitance 5516 improves to the activation threshold value of bilateral diode 5514, cause to touch Bidirectional triode thyristor 5511 is sent out, such shunt capacitance 541 leads to LED daylight lamp cisco unity malfunction.Parallel connection is released on capacitance 5516 Come the electric energy generated by the DC offset voltage of releasing, such bilateral diode 5514 will not be triggered energy resistance, and then two-way Silicon-controlled 5511 will not be triggered, and improve the compatibility of LED daylight lamp in this way.

In this way by above-mentioned scheme, the energy on capacitance 5516 can be consumed so that the voltage of capacitance 5516 will not on The trigger voltage of bilateral diode 5514 is risen to, and then bidirectional triode thyristor 5511 will not be triggered.Improve the compatibility of LED daylight lamp Property.

In above-described embodiment, energy component 5519 is released, energy resistance is released in selection, and resistance value chooses 1K ohm~1M ohm；Preferably Selection, 1K ohm~1000K ohm.The energy release of component 5519 is released caused by electric ballast itself direct current biasing to electricity Outside the energy for holding 5516 chargings, electric leakage of the also releasable bidirectional triode thyristor due to the inconsistent initiation of heated rear both sides equivalent resistance Stream causes the electric energy that capacitance 5516 charges.

In above-described embodiment, the activation threshold value of bilateral diode chooses 10v~100v, preferably chooses, 20v~50v.This During embodiment is converged, the activation threshold value of bilateral diode chooses 32V.

As the deformation of Fig. 4 H schemes,

①：Can also be released in the branch circuit parallel connection of capacitance 5517 can component.

②：The activation threshold value of bilateral diode can be properly increased, 50v is such as chosen.

Certainly it also can be used, omit resistance 5515 and capacitance 5517, at this moment the b of resistance 5518 is electrically connected bidirectional triode thyristor 5511 ends A；Or, omitting resistance 5518 and capacitance 5516, at this moment the other end of bilateral diode is electrically connected capacitance 5517 One end.

In the scheme that Fig. 3 C and 3D are implemented,

Lamp circuit module includes 2 power modules (power module a, b), is respectively arranged at the lamp cap of LED daylight lamp both sides. Wherein power module a includes mainly Thermal Cutoffs (FU1, FU2) and protective device 5513, a simulation heater chain 570, simultaneous Capacitive circuit, current limiting capacitance, releasing can circuit.Power module b includes that Thermal Cutoffs FU3, at least one of FU4 (can subtract in this way The volume of small power supply module b), the conductive pin of lamp cap is electrically connected by the Thermal Cutoffs and is electrically connected lamp plate.Electricity Source module a, b are connected by welding with lamp plate.LED module 530, rectification unit (rectification branch), another simulation is arranged in lamp plate Heater chain.The lamp plate lamp plate includes mainly 2 layers of structure (protective layer, also referred to as PI layer, polyimide；Conductive layer).In the reality having It applies in example, which is further coated with the ink layer to shield, is respectively coated in conductive layer and PI layers of one side.

Such layout reduces the welding quantity that power module is connect with lamp plate, improves the reliability of fluorescent tube entirety.

Filter capacitor 521 in the embodiment having in LED module 530, using 2 or multiple (such as 3,4), 2 The mode of the branch circuit parallel connection of 2 capacitances of Shi Caiyong, at 3, using 3 capacitive branch it is in parallel or in which 2 concatenated branches with it is another One capacitive branch is in parallel；It may be provided on power module, at 4, branch after 2 capacitances series connection mode in parallel again.It can adopt With thin-film capacitor or patch type capacitance.(the branch equivalent parallel is in several LED components 632 for the partial branch of the filter capacitor Branch) power module in side is set, when such electric voltage exception for crossing power module, punctures the capacitance (short circuit), make it not Electric energy is provided to LED module.

The design of Fig. 3 C and 3D schemes is advantageous in that：

④：When improving electrical network low voltage LED daylight lamp can be successfully lighted (when such as 120V).

As the improvement of Fig. 3 C and 3D schemes, in compatible circuit 540, current limiting capacitance 541 can be omitted, or omit current limiting capacitance 541 and ballast compatible circuit 1510, as shown in FIGURE 3 E.At this moment (it is added in electric discharge merely with realization Delayed conducting for discharge tube DB1 When voltage on pipe DB1 reaches the threshold value of design, discharge tube DB1 conductings.Realize compatible different types of ballast.Next it retouches State the scheme of Fig. 3 E.

Shown in Fig. 3 E, with Fig. 3 C schemes difference lies in：

①：The embodiment for simulating heater chain 570 is different, simulates heater chain 570, including：Capacitance 571, capacitance 572, resistance 573, the branch circuit parallel connection of capacitance 571 and 572 concatenated branch of capacitance and resistance 573.

Certainly the other kinds of simulation heater chain (mould in such as Fig. 3 B/3C/3D also can be used in simulation heater chain 570 Quasi- heater chain), to reach the function of simulation filament.

②：In compatible circuit 540, capacitance 541 and ballast compatible circuit 1510 are omitted, such circuit topology is simple, improves The reliability of LED daylight lamp；At this moment the half-wave rectifying circuit that diode 513 and diode 514 form in compatible circuit 540, also It can be by as full-wave rectifying circuit substitutes.

③：Rectification unit 510 is full wave rectifying unit.

Scheme shown in Fig. 3 E can be used for straight pipe type lamp, it may also be used for PLL types (it is horizontal slotting that H-type puts down 4 needles) LED light.

Design in this way is advantageous in that：

①：Due to omitting capacitance 541, the pipe pressure of LED daylight lamp 500 can be reduced under the conditions of same luminous flux, is improved Compatibility when there is the electric ballast application scenario of preheating (PS) type is (in PS ballast occasions, if ballast detects The voltage of (LED daylight lamp) fluorescent tube is high, can be mistaken for LED daylight lamp starting protection extremely, cannot light LED daylight lamp).

②：It can be used using program LED daylight lamp 500 and matched with the rectifier of specified model, LED daylight is lighted in raising Lamp purpose.

In said program, discharge tube DB1 can use scheme shown in Fig. 4 A, 4B, 4C, 4E to substitute.

Next, ballast compatible circuit 1510 in the embodiment of description Fig. 3 A-B, the preferable reality of ballast compatible circuit 1510 Apply the circuit of example as shown in figs. 4a-4e.

Ballast compatible circuit 1510 shown in Fig. 4 A, including：Bidirectional triode thyristor TR, discharge tube 561；1 end of discharge tube 561 connects The ends a are connected to, 2 sections of 2 sections of triggering ends for being connected to bidirectional triode thyristor TR, bidirectional triode thyristor TR are connected to the ends b；When discharge tube 561 The voltage at both ends reaches the threshold value of setting, and discharge tube 561 is connected, and triggers bidirectional triode thyristor TR, and at this moment bidirectional triode thyristor TR is connected (i.e. a, b are connected between end, start LED daylight lamp 500).

Parameter declaration：Pressure-resistant 600~1300V of range of bidirectional triode thyristor TR in the present embodiment；600V is selected in the present embodiment； Voltage threshold range 20V~100V of discharge tube 561；Preferably choose between 30V~70V；The present embodiment chooses 68V.

Ballast compatible circuit 1510 shown in Fig. 4 B, including：Bidirectional triode thyristor TR, discharge tube 561,562, capacitance 563；Electric discharge 1 end of pipe 561 is connected to 1 end at the ends a, 2 sections of 1 ends for being connected to discharge tube 562 and capacitance 563；2 ends of discharge tube 562 connect 2 sections to the triggering end of bidirectional triode thyristor TR, capacitance 563 are connected to the ends b.When the voltage at 561 both ends of discharge tube reaches setting Threshold value, discharge tube 561 are connected, at this moment 563 charged state of capacitance, when the threshold value that the voltage at 562 both ends of discharge tube reaches setting is touched Bidirectional triode thyristor TR is sent out, at this moment bidirectional triode thyristor TR conductings (i.e. a, b are connected between end, start LED daylight lamp 500).

Parameter declaration：Pressure-resistant 600~1300V of range of bidirectional triode thyristor TR in the present embodiment；600V is selected in the present embodiment； Voltage threshold range 200V~600V of discharge tube 561；Preferably choose between 300V~440V；The present embodiment chooses 340V； Voltage threshold range 20V~100V of discharge tube 562；Preferably choose between 30V~70V；The present embodiment chooses 68V；Capacitance 563 range, 2~50nF choose 10nF in the present embodiment.The voltage threshold of discharge tube 561 is more than discharge tube in the present embodiment 562 voltage threshold.

Ballast compatible circuit 1510 shown in Fig. 4 C, with Fig. 4 B difference lies in：Discharge tube is replaced with bilateral diode 564 562.Parameter declaration：Pressure-resistant 600~1300V of range of bidirectional triode thyristor TR in the present embodiment；600V is selected in the present embodiment；Electric discharge Voltage threshold range 200V~600V of pipe 561；Preferably choose between 300V~440V；The present embodiment chooses 340V；It is two-way Voltage threshold range 20V~100V of diode 564；Preferably choose between 30V~70V；The present embodiment chooses 68V；Capacitance 563 range, 2~50nF choose 10nF in the present embodiment.The voltage threshold of discharge tube 561 is more than two-way two in the present embodiment The voltage threshold of pole pipe 564.

Ballast compatible circuit 1510 shown in Fig. 4 D, with Fig. 4 A difference lies in：Eliminate bidirectional triode thyristor TR.

Parameter declaration：Voltage threshold range 20V~100V of discharge tube 561；Preferably choose between 30V~70V；This reality It applies example and chooses 68V.

Ballast compatible circuit 1510 shown in Fig. 4 E, with Fig. 4 B difference lies in：2 ends of discharge tube 561 and bilateral diode Resistance 565. is added between 564 1 end, and remaining is unchanged.

Parameter declaration：Pressure-resistant 600~1300V of range of bidirectional triode thyristor TR in the present embodiment；600V is selected in the present embodiment； Voltage threshold range 200V~600V of discharge tube 561；Preferably choose between 300V~440V；The present embodiment chooses 340V； Voltage threshold range 20V~100V of bilateral diode 564；Preferably choose between 30V~70V；The present embodiment chooses 68V； The range of capacitance 563,2~50nF choose 10nF in the present embodiment.

As the deformation of the present embodiment, resistance 565. can also be added between 2 ends of discharge tube 561 and 1 end of discharge tube 562 Remaining is unchanged.

Design in this way, the electric ballast that can be solved in background cannot at electrical network low voltage (when less than 120V) Normal the problem of starting LED daylight lamp.Simultaneously by the topology of Fig. 4 A- Fig. 4 E can be seen that the utility model proposes scheme selection Less component greatly improves the reliability of system in this way.

Ballast compatible circuit 1510 shown in Fig. 4 F, including：Rectification unit 5561, control unit 5562, switch unit 5563 And sampling unit 5564；

Rectification unit 5561 flows into the electric current of LED daylight lamp for rectification, and electric energy is provided to control unit 5562；

Rectification unit 5561, the rectification circuit being made of 4 diodes, diode 515, diode 516, diode 517, Diode 518；The cathode of diode 515 is electrically connected the cathode of diode 517, and the anode of diode 515 is electrically connected two poles The cathode of pipe 516, the anode of diode 516 are electrically connected the anode of diode 518, and the cathode of diode 518 is electrically connected two The anode of pole pipe 517；Diode 515 and the tie point and diode 517 and the tie point of diode 518 of diode 516 are distinguished It is electrically connected the both ends of capacitance 541.

Control unit 5562, including, diode 519, resistance 4568, capacitance 4569 branch in sequential series, the branch are used In the driving power for providing IC chip 4561, the wherein anode of diode 519 is electrically connected diode 517 and diode 515 Cathode；IC chip 4561；Resistance 4563；Capacitance 4565；Resistance 4566；Triode 4567；

The OUT terminal of IC chip 4561 is electrically connected the grid (poles G) of the MOS switch 4562 of switch unit 5563, IC chip 4561 ends GND, the ends OVP and the ends CS is all grounded, and the ends VCC of IC chip 4561 are electrically connected one end of resistance 4566, resistance 4566 other end is electrically connected the collector of triode 4567, the emitter ground connection of triode 4567, the base of triode 4567 The transmitting interpolar of pole and triode 4567 is electrically connected with capacitance 4565, and the base stage of triode 4567 is electrically connected resistance 4563 One end, the other end of resistance 4563 are electrically connected sampling unit 5564 with the transmitting interpolar of triode 4567.

Sampling unit 5564 a, including sampling resistor 4564.

Switch unit 5563, including a MOS switch 4562, the grid (poles G) of MOS switch 4562 is electrically connected IC chip 4561 OUT terminal, drain electrode (poles D) are electrically connected the anode of diode 519, and source electrode (poles S) is electrically connected to sampling resistor 4564 One end, sampling resistor 4564 the other end ground connection.

In other examples, electrically it is arranged between the anode of diode 519 in the drain electrode of MOS switch 4562 (poles D) Resistance.

In other examples, MOS switch can choose p-type MOS switch.

As shown in Figure 4 G, the LED module 530 is coupled with current limiting capacitance 541；The current limiting capacitance 541 is flowed for adjusting Cross the electric current of the LED module 530；The ballast compatible circuit 5510 is parallel to the both ends of the current limiting capacitance 541.In the reality It applies in example, the ballast compatible circuit 5510 can be configured as：It is described outer when the external drive signal is AC signal The electric current that portion's alternating current drive signal generates flows through the current limiting capacitance 541.

As shown in Figure 4 G, the ballast compatible circuit 5510 includes bidirectional triode thyristor 5511, bilateral diode 5514, first Capacitance 5516, first resistor 5518；The ends A of the bidirectional triode thyristor 5511 are electrically connected one end of the current limiting capacitance 541, institute State bidirectional triode thyristor 5511 the other end be electrically connected first capacitance 5516 one end and the current limiting capacitance 541 it is another One end；The triggering end of the bidirectional triode thyristor 5511 is electrically connected one end of the bilateral diode 5514；Two-way two pole The other end of pipe 5514 is electrically connected one end of the first resistor 5518 and the other end of first capacitance 5516；It is described The other end of first resistor 5518 is electrically connected one end of first capacitance 5516 and the A of the bidirectional triode thyristor 5511 End.

First capacitance 5516, which is parallel with, releases energy component；The energy component of releasing can consume the external communication drive signal The energy that generates of the first capacitance of DC offset voltage pair 5516 so that the voltage of first capacitance 5516 is not up to described The trigger voltage of bilateral diode 5514.

It is in series with second resistance between the other end of the first resistor 5518 and the ends A of the bilateral diode 5514 5515；The second capacitance 5517 is in series between the other end of the first resistor 5518 and one end of first capacitance 5516.

In addition, as shown at figure 4h, second capacitance 5517, which is parallel with, releases energy component；It is described release can component can consume it is described The energy that the second capacitance of DC offset voltage pair of external communication drive signal generates so that the voltage of second capacitance will not Reach the trigger voltage of the bilateral diode 5514.Specifically, the energy component of releasing includes releasing energy resistance 5519.As preferred , the resistance value for releasing energy resistance 5519 is 1K ohm to 1M ohm.

As shown in Fig. 4 G, Fig. 4 H, it is in series between the other end of the bidirectional triode thyristor 5511 and the current limiting capacitance 541 Inductance 5512；The other end of the bidirectional triode thyristor 5511 is electrically connected one end of the inductance 5512, the inductance 5512 The other end is electrically connected the other end of the current limiting capacitance 541；One end of first capacitance 5516 is electrically connected the inductance 5512 one end.

Further, the ballast compatible circuit 5510 further includes the other end for being series at the inductance 5512 and the limit Galvanic electricity holds the protective device 5513 between 541 other end；The protective device is more than volume for the electric current that inductance 5513 flows into Starting protection when constant current.Specifically, the protective device 5513 is Thermal Cutoffs or rated current type fuse.

Fig. 4 G are the embodiment of compatible circuit in Fig. 3 C or D.Compatible circuit 5510；Including：Bidirectional triode thyristor 5511, electricity Sense 5512, protective device 5513, bilateral diode 5514, resistance 5515, capacitance 5516, capacitance 5517, resistance 5518；It is two-way can The ends A for controlling silicon 5511 are electrically connected one end of capacitance 541, and the other end of bidirectional triode thyristor 5511 is electrically connected a of inductance 5512 End, the ends b of inductance 5512 are electrically connected one end of protective device 5513, and the other end of protective device 5513 is electrically connected capacitance 541 other end；The triggering end of bidirectional triode thyristor 5511 is electrically connected one end of bilateral diode 5514, bilateral diode 5514 The other end be electrically connected one end of resistance 5518 and one end of capacitance 5516, the ends B of capacitance 5516 are electrically connected inductance 5512 The ends a, the ends b of resistance 5518 are electrically connected one end of resistance 5515 and one end of capacitance 5517, the other end electricity of resistance 5515 Property connection bidirectional triode thyristor 5511 the ends A；The ends b of capacitance 5517 are electrically connected the ends B of capacitance 5516 and the ends a of inductance 5512.

It needing to point out, in his above-mentioned embodiment, " electric connection " of description can be directly electrical connection, Can be that electric signal connects." signal " can be regarded as " signal " in his above-mentioned embodiment.

It needs to point out, in other embodiments, for same root LED daylight lamp, " lighting in circuit Circuit module ", " releasing energy circuit ", " compatible circuit ", " simulation heater chain ", " Thermal Cutoffs ", " current limiting capacitance ", " inductance " Etc. in features, one or more of features combinations can be only included.

That is, features described above can be made to arbitrary permutation and combination, and for the improvement of LED daylight lamp.

In addition, it is necessary to point out, in other embodiments, for LED light, compatible circuit may be provided in LED Lamp it is internal or external, it is above-mentioned to refer to that " simulation heater chain " feature has several different presentation schemes, can be in compatible PS It is used between the LED daylight lamp of the different embodiments of type.

Herein cited any digital value all include between lower limiting value to upper limit value with the lower value of an incremented and The all values of upper value, there are the intervals of at least two units between any lower value and any much higher value.For example, such as Fruit elaborates that the quantity of component or the value of process variable (such as temperature, pressure, time etc.) are from 1 to 90, preferably from 20 To 80, more preferably from 30 to 70, then purpose is arrived in order to illustrate also clearly listing such as 15 to 85,22 in the specification 68,43 to 51,30 to 32 is equivalent.For the value less than 1, suitably think that a unit is 0.0001,0.001,0.01,0.1. These are only intended to the example clearly expressed, it is believed that the numerical value enumerated between minimum and peak is possible to Combination is all expressly set forth in the specification in a similar manner.

Unless otherwise indicated, all ranges all include all numbers between endpoint and endpoint.It is used together with range " about " or " approximation " be suitable for two endpoints of the range.Thus, " about 20 to 30 " are intended to covering " about 20 to about 30 ", including at least the endpoint indicated.

All articles and reference disclosed, including patent application and publication, for various purposes by quoting knot Together in this.The term " substantially by ... constitute " for describing combination should include identified element, ingredient, component or step and reality Other elements, ingredient, component or the step of the basic novel feature of the combination are not influenced in matter.Using term "comprising" or " comprising " describes the combination of element here, ingredient, component or step it is also contemplated that substantially by these elements, ingredient, component Or the embodiment that step is constituted.Here by using term " can with ", it is intended to illustrate that " can with " includes described any Attribute is all optional.

Multiple element, ingredient, component or step can be provided by single integrated component, ingredient, component or step.Optionally Ground, single integrated component, ingredient, component or step can be divided into multiple element, ingredient, component or the step of separation.It is used for The open "a" or "an" for describing element, ingredient, component or step is not said to exclude other elements, ingredient, component Or step.

It should be understood that above description is to illustrate rather than to be limited.By reading above-mentioned retouch It states, many embodiments and many applications except the example provided all will be aobvious and easy for a person skilled in the art See.Therefore, the range of this introduction should not be determined with reference to foregoing description, but should with reference to appended claims and this The full scope of the equivalent that a little claims are possessed determines.For comprehensive purpose, all articles and with reference to including special The disclosure of profit application and bulletin is all by reference to being incorporated herein.Theme disclosed herein is omitted in preceding claims Any aspect is not intended to abandon the body matter, also should not be considered as inventor the theme is not thought of as it is disclosed A part for utility model theme.

Claims

1. a kind of LED daylight lamp, which is characterized in that including：

Fluorescent tube (1), end have the pin (A1, A2, B1, B2) for inputting external drive signal；

Rectification circuit (510) is used to carry out rectification to the external drive signal, to generate rectified signal；

Filter circuit (520) is used to be filtered the rectified signal, to generate filtered signal；

LED module (530) is used to receive the filtered signal to shine；And

Ballast compatible circuit (5510)；The ballast and current circuit (5510) are used to be made according to the external drive signal described LED daylight lamp is compatible with different types of ballast；The ballast compatible circuit (5510) is configured as：When the external drive is believed When number being AC signal, the ballast compatible circuit is by releasing the electric energy generated by the external communication drive signal without quilt The DC offset voltage triggering and conducting of the external communication drive signal.

2. a kind of LED daylight lamp, which is characterized in that including：

LED module (530) is used to receive the filtered signal to shine；

Current limiting capacitance (541) is coupled to the LED module (530) and for adjusting the electric current for flowing through the LED module (530)； And

Ballast compatible circuit (5510)；The ballast and current circuit (5510) be parallel to the both ends of the current limiting capacitance (541) and For making the LED daylight lamp be compatible with different types of ballast according to the external drive signal；The ballast compatible circuit (5510) it is configured as：When the external drive signal is AC signal, the electric current of the external communication drive signal generation Flow through the current limiting capacitance (541), and the ballast compatible circuit is generated by releasing by the external communication drive signal Electric energy is without the conducting that is triggered.

3. LED daylight lamp as described in claim 1, it is characterised in that：The LED module (530) is coupled with current limiting capacitance (541)；The current limiting capacitance (541) is for adjusting the electric current for flowing through the LED module (530)；The ballast compatible circuit (5510) both ends of the current limiting capacitance (541) are parallel to.

4. LED daylight lamp as claimed in claim 2 or claim 3, it is characterised in that：The ballast compatible circuit (5510) includes two-way Silicon-controlled (5511), bilateral diode (5514), the first capacitance (5516), first resistor (5518)；The bidirectional triode thyristor (5511) the ends A are electrically connected one end of the current limiting capacitance (541), and the other end of the bidirectional triode thyristor (5511) is electrical Connect one end of first capacitance (5516) and the other end of the current limiting capacitance (541)；The bidirectional triode thyristor (5511) triggering end is electrically connected one end of the bilateral diode (5514)；The other end of the bilateral diode (5514) It is electrically connected one end of the first resistor (5518) and the other end of first capacitance (5516)；The first resistor (5518) the other end is electrically connected one end of first capacitance (5516) and the ends A of the bidirectional triode thyristor (5511).

5. LED daylight lamp as claimed in claim 4, it is characterised in that：First capacitance (5516), which is parallel with, releases energy component； The energy component of releasing can consume the energy that the first capacitance of DC offset voltage pair (5516) of the external communication drive signal generates Amount so that the voltage of first capacitance (5516) is not up to the trigger voltage of the bilateral diode (5514).

6. LED daylight lamp as claimed in claim 4, it is characterised in that：The other end of the first resistor (5518) with it is described Second resistance (5515) is in series between the ends A of bilateral diode (5514)；

It is in series with the second capacitance between the other end and one end of first capacitance (5516) of the first resistor (5518) (5517)。

7. LED daylight lamp as claimed in claim 6, it is characterised in that：Second capacitance (5517), which is parallel with, releases energy component； The energy component of releasing can consume the energy that the second capacitance of DC offset voltage pair of the external communication drive signal generates so that The voltage of second capacitance is not up to the trigger voltage of the bilateral diode (5514).

8. LED daylight lamp as described in claim 5 or 7, it is characterised in that：The energy component of releasing includes releasing energy resistance (5519)。

9. LED daylight lamp as claimed in claim 8, it is characterised in that：The resistance value for releasing energy resistance (5519) is 1K ohm To 1M ohm.

10. LED daylight lamp as claimed in claim 6, it is characterised in that：The other end of the bidirectional triode thyristor (5511) and institute It states and is in series with inductance (5512) between current limiting capacitance (541)；Described in the other end of the bidirectional triode thyristor (5511) is electrically connected One end of inductance (5512), the other end of the inductance (5512) are electrically connected the other end of the current limiting capacitance (541)；It is described One end of first capacitance (5516) is electrically connected one end of the inductance (5512).

11. LED daylight lamp as claimed in claim 10, it is characterised in that：The inductance value of the inductance (5512) be 2mH extremely 15mH。

12. LED daylight lamp as claimed in claim 10, it is characterised in that：The ballast compatible circuit (5510) further includes string The protective device (5513) being coupled between the other end of the inductance (5512) and the other end of the current limiting capacitance (541)；Institute State starting protection when electric current of the protective device for inductance (5512) to flow into is more than rated current.

13. LED daylight lamp as claimed in claim 12, it is characterised in that：The protective device (5513) is Thermal Cutoffs Or rated current type fuse.

14. LED daylight lamp as claimed in claim 6, it is characterised in that：The activation threshold value of the bilateral diode be 10 volts extremely 100 volts.

15. LED daylight lamp as claimed in claim 6, it is characterised in that：The activation threshold value of the bilateral diode is 50 volts.

16. LED daylight lamp as claimed in claim 3, it is characterised in that：The ballast compatible circuit (5510) is configured as： When the external drive signal is AC signal, the electric current that the external communication drive signal generates flows through the current limiting capacitance (541)。

17. LED daylight lamp as claimed in claim 2 or claim 3, it is characterised in that：The ballast compatible circuit (5510) is configured For：When the external drive signal is DC signal, the ballast compatible circuit is led by external drive signal triggering It is logical, current limiting capacitance (541) described in the current bypass that the external drive signal generates.