CN201866596U

CN201866596U - LED daylight lamp and connecting circuit thereof

Info

Publication number: CN201866596U
Application number: CN2010206483991U
Authority: CN
Inventors: 刘昌贵
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-12-07
Filing date: 2010-12-07
Publication date: 2011-06-15
Anticipated expiration: 2020-12-07

Abstract

The embodiment of the utility model discloses an LED daylight lamp and a connecting circuit of the daylight lamp. The LED daylight lamp comprises an LED daylight tube which comprises a first end cover and a second end cover that respectively comprise two pins, a first inductance and a first bridge rectification circuit are connected between the two pins of the first end cover in parallel, a second inductance and a second bridge rectification circuit are connected between the two pins of the second end cover in parallel, the output ends of the first bridge rectification circuit and the second bridge rectification circuit are connected with an LED lamp set in parallel, and the LED lamp set comprises an LED light source set and a circuit providing a constant current or a constant voltage. By adopting the LED daylight lamp and the connecting circuit of the daylight lamp, the fluorescent lamp is directly replaced by the LED daylight lamp under the circumstance that the peripheral circuit of the traditional fluorescent lamp is not changed.

Description

A kind of LED fluorescent lamp and fluorescent lamps connected connection circuit

Technical field

The utility model relates to the LED field, relates in particular to LED fluorescent lamp and fluorescent lamps connected connection circuit.

Background technology

In the traditional lighting light source, straight tube fluorescent lamp and circline are used for commercial lighting, office lighting and domestic lighting in a large number.As Fig. 1, Fig. 2 with Figure 3 shows that the circuit diagram of three kinds of at present common fluorescent lamps.As shown in Figure 1, first kind of common fluorescent lamp circuit comprises that an Inductive ballast, a fluorescent tube and are installed in the starter S on the starter base Y, and civil power (being usually said alternating current) is imported simultaneously from an end of Inductive ballast and an end of fluorescent lamp.As shown in Figure 2, second kind of common fluorescent lamp circuit replaced Inductive ballast in first kind of mode with electric ballast, civil power is exported to four pins of fluorescent lamp circuit respectively through four outputs of electric ballast after the input input of electric ballast.As shown in Figure 3, the third common fluorescent lamp circuit is also with the Inductive ballast in first kind of mode of electric ballast replacement, itself and circuit difference shown in Figure 2 are, electric current through electric ballast sends to two pins of fluorescent lamp simultaneously by an output of electric ballast, and sends to two other pin of fluorescent lamp simultaneously by another output of electric ballast.

Aspect light efficiency, fluorescent lamp is better than common incandescent lamp and Halogen lamp LED greatly, and its energy-saving effect is remarkable, but the fluorescent tube of fluorescent lamp contains mercury element, and is damaged or when scrapping when fluorescent tube, causes environmental pollution easily.Development along with light source technology, the light emitting diode (LED) that the solid state light emitter performance occurred, the power savings advantages of led light source and environment-friendly advantage more surpass fluorescent lamp, therefore, in recent years, the LED lamp replaces traditional various light sources successively, on this basis, also designs fluorescent lamp based on LED to replace traditional straight tube fluorescent lamp or circline.

At present, common LED fluorescent tube comprises following several:

Fig. 4 and shown in Figure 5 be a kind of LED fluorescent lamp and the circuit diagram thereof that the most generally uses at present, as Fig. 4 and shown in Figure 5, the power supply driver that comprises a plurality of led light sources and driving LED light source in LED fluorescent-lamp tube inside, civil power enters from the two ends of fluorescent tube, this LED fluorescent lamp is after an end of fluorescent tube inserts lamp socket and energising, it is also charged that the other end does not insert the part of lamp socket, is easy to generate potential safety hazard.

For overcoming the defective of Fig. 4 and fluorescent tube shown in Figure 6, Fig. 6 and fluorescent tube shown in Figure 7 have been designed at present.As Figure 6 and Figure 7, comprise power supply driver and two LED lamp strings of two led light sources in the prior art in the fluorescent tube inside of LED fluorescent lamp, the independent two ends input from fluorescent lamp of civil power is acted in collusion to make each other's confessions to two LED fluorescent lamps respectively.Though can solve potential safety hazard like this, increase the cost of making fluorescent tube.

In addition, for overcoming the defective of Fig. 4 and fluorescent tube shown in Figure 5, Fig. 8 and fluorescent tube shown in Figure 9 have also been designed at present.As Fig. 8 and shown in Figure 9, the civil power of the prior art is only imported from an end of LED fluorescent tube, and the other end is vacant.

In addition, Figure 10 is another kind of more common LED fluorescent lamp design, and this scheme moves on to the LED power supply driver outside of fluorescent-lamp tube.Import from the two ends of LED fluorescent-lamp tube respectively behind the driving power output dc low-voltage electricity.

All there is following technological deficiency in foregoing several frequently seen LED fluorescent lamp design:

Above-mentioned various LED fluorescent lamp all can not be directly installed in Fig. 1, Fig. 2 and the traditional fluorescent lamp peripheral circuit shown in Figure 3 and be used for direct replace fluorescent lamps fluorescent tube.If above-mentioned various LED fluorescent lamps are installed in traditional fluorescent lamp circuit, more or less need to change the structure of described fluorescent lamp peripheral circuit.

Because fluorescent lamp uses in life in a large number, special is that the designed support of fluorescent lamp, lamp panel and peripheral circuit are also disposed already in a large number, if the peripheral circuit in order to use the LED fluorescent lamp with the fluorescent lamp of moulding changes, this will increase a large amount of costs, and waste a large amount of resources.Therefore present very serious hope can produce a kind of under the situation of the peripheral circuit structure that does not change fluorescent lamp, can be directly installed on the LED fluorescent lamp in the conventional fluorescent circuit for lamp.

The utility model content

The utility model embodiment technical problem to be solved is, LED fluorescent lamp and fluorescent lamps connected connection circuit are provided, and to be implemented under the situation that does not change the conventional fluorescent peripheral circuit, directly uses LED fluorescent lamp replace fluorescent lamps.

The utility model embodiment provides a kind of LED fluorescent lamp, comprise the LED fluorescent tube, described LED fluorescent tube comprises first end cap and second end cap, described first end cap and described second end cap comprise two pins respectively, in described LED fluorescent tube inside, between two pins of described first end cap, be parallel with first inductance and first bridge rectifier, between two pins of described second end cap, be parallel with second inductance and second bridge rectifier, the output parallel connection LED lamp group of described first bridge rectifier and described second bridge rectifier, described LED lamp group comprises the led light source group and is used for providing the circuit of constant current or constant voltage to described led light source group, between a pin of the input of described LED lamp group and described second end cap, be in series with first electric capacity, between a pin of the output of described LED lamp group and described first end cap, be in series with second electric capacity.

Preferable, the input of described first electric capacity and with pin that described input links to each other between series connection the 3rd inductance;

The input of described second electric capacity and with pin that described input links to each other between series connection the 4th inductance.

Preferable, after described first inductance, before described first bridge rectifier, also be parallel with the circuit that forms by the 3rd electric capacity and the series connection of first resistance between two pins of described first end cap;

After described second inductance, before described second bridge rectifier, also be parallel with the circuit that forms by the 4th electric capacity and the series connection of second resistance between two pins of described second end cap.

Perhaps, the output of described first inductance and with pin that described output links to each other between series connection the 5th electric capacity;

The output of described second inductance and with pin that described output links to each other between series connection the 6th electric capacity.

In addition, the utility model embodiment also provides a kind of fluorescent lamps connected connection circuit, comprise Inductive ballast and starter base in the fluorescent lamp circuit, also comprise in the aforesaid LED fluorescent lamp any, the input of described Inductive ballast is connected an end that exchanges input, the pin that does not connect described second inductance on first end cap of described fluorescent lamp is connected the other end that exchanges input, the pin that connects described second inductance on described first end cap is connected an end of described starter base, the pin that connects described first inductance on second end cap of described fluorescent lamp is connected the output of described Inductive ballast, the pin that does not connect described first inductance on described second end cap is connected the other end of described starter base, on the described starter base starter is not installed.

Preferable, LED fluorescent lamp of the present utility model after described first inductance, before described first bridge rectifier, also is parallel with the circuit that is formed by the 3rd electric capacity and the series connection of first resistance between two pins of described first end cap; After described second inductance, before described second bridge rectifier, when also being parallel with the circuit that forms by the series connection of the 4th electric capacity and second resistance between two pins of described second end cap, the output of described first inductance and with pin that described output links to each other between connect one to make the described first inductance original state be first switch element of off-state; The output of described second inductance and with pin that described output links to each other between series connection one to make the described second inductance original state be the second switch element of off-state.

Preferable, between described first inductance and described first switch element, also be in series with the 7th electric capacity;

Between described second inductance and described second switch element, also be in series with the 8th electric capacity.

In addition, the utility model embodiment also provides another kind of fluorescent lamps connected connection circuit, comprise Inductive ballast and starter base in the fluorescent lamp circuit, also comprise the LED fluorescent lamp, the input of described Inductive ballast is connected an end that exchanges input, the pin that does not connect described second inductance on first end cap of described fluorescent lamp is connected the other end that exchanges input, the pin that connects described second inductance on described first end cap is connected an end of described starter base, the pin that connects described first inductance on second end cap of described fluorescent lamp is connected the output of described Inductive ballast, the pin that does not connect described first inductance on described second end cap is connected the other end of described starter base, described starter base is equipped with starter, and described LED fluorescent lamp is the aforesaid LED fluorescent lamp that comprises described first switch element and described second switch element at least.

Preferable, described first switch element and described second switch element be in controllable silicon, photoelectrical coupler, relay and the transistor any;

When described first switch element was controllable silicon, described silicon controlled trigger end was connected on the connecting line between described the 3rd electric capacity and described first resistance;

When described second switch element was controllable silicon, described silicon controlled trigger end was connected on the connecting line between described the 4th electric capacity and described second resistance.

Preferable, described be used for to described led light source group provide the circuit of constant current or constant voltage be resistance, transistor any.

It is perhaps, described that to be used for providing the circuit of constant current or constant voltage to described led light source group be the LED power supply driver.

Preferable, when described when being used for providing the circuit of constant current or constant voltage to be the LED power supply driver to described led light source group, at the front end of described LED lamp group, the output of described first bridge rectifier also is parallel with the circuit of the 3rd resistance and the 3rd switch element series connection formation.

Preferable, described the 3rd switch element comprises in starter, controllable silicon, triode, relay, the Zener diode any.

Preferable, LED fluorescent lamp of the present utility model, at the two ends of described LED lamp group, the output of described first bridge rectifier is parallel with first filter capacitor, and the output of described second bridge rectifier is parallel with second filter capacitor.

In addition, the utility model embodiment also provides another kind of fluorescent lamps connected connection circuit, comprise the electric ballast in the fluorescent lamp circuit, also comprise in all LED fluorescent lamps that the utility model embodiment provides any, the input of described electric ballast is connected the two ends that exchange input, two pins on first end cap of described fluorescent lamp is connected to two outputs of described electric ballast, and the two pins on second end cap of described fluorescent lamp is connected to two other output of described electric ballast.

In addition, the utility model embodiment also provides another kind of fluorescent lamps connected connection circuit, comprise the electric ballast in the fluorescent lamp circuit, also comprise in all LED fluorescent lamps that the utility model embodiment provides any, two inputs of described electric ballast are connected to the two ends that exchange input, two pins on first end cap of described fluorescent lamp is connected first output of described electron rectifier simultaneously, and the two pins on second end cap of described fluorescent lamp is connected second output of described electron rectifier at the same time.

Implement the utility model embodiment, have following beneficial effect:

The LED fluorescent lamp that the utility model embodiment provides is in parallel first inductance and second inductance between the pin of end cap, between a pin of the input of described LED lamp group and described second end cap, be in series with first electric capacity, between a pin of the output of described LED lamp group and described first end cap, be in series with second electric capacity, when in the fluorescent lamp circuit of LED fluorescent lamp the utility model prior art that the utility model embodiment provides, described first inductance, second inductance, after first electric capacity and second electric capacity are adjusted the input characteristics of fluorescent lamp circuit, neither change the circuit structure of fluorescent lamp circuit in the time of can making the LED fluorescent lamp insert in the circuit of fluorescent lamp, the LED fluorescent lamp is normally lighted.In addition, for the input characteristics to fluorescent lamp circuit is better adjusted, the utility model embodiment on the basis of first inductance in parallel and second inductance, the circuit that forms by the 3rd electric capacity and the series connection of first resistance in parallel, and the circuit of connecting and forming in parallel by the 4th electric capacity and second resistance.In addition, for the input characteristics to fluorescent lamp circuit is better adjusted, the utility model embodiment on the basis of first inductance in parallel and second inductance, also the output of described first inductance and with pin that described output links to each other between series connection the 5th electric capacity; The output of described second inductance and with pin that described output links to each other between series connection the 6th electric capacity.In addition, for the input characteristics to fluorescent lamp circuit is better adjusted, the circuit that the utility model embodiment is formed by the 3rd electric capacity and the series connection of first resistance in parallel connection, and on the basis of the circuit that forms by the 4th electric capacity and the series connection of second resistance in parallel, the output of described first inductance and with pin that described output links to each other between connect one to make the described first inductance original state be first switch element of off-state; The output of described second inductance and with pin that described output links to each other between series connection one to make the described second inductance original state be the second switch element of off-state.In addition, for the input characteristics to fluorescent lamp circuit is better adjusted, the utility model embodiment also is in series with the 7th electric capacity between described first inductance and described first switch element on the basis of series connection first switch element and second switch element; Between described second inductance and described second switch element, also be in series with the 8th electric capacity.In addition, to be used for providing the circuit of constant current or constant voltage to described led light source group be the LED power supply driver when described, when the peripheral circuit that inserts is the electron rectifier fluorescent lamp circuit, the output of described first bridge rectifier also is parallel with the circuit of the 3rd resistance and the 3rd switch element series connection formation, this circuit can produce feedback current to circuit input end on described the 3rd resistance, so that the input characteristics of the output characteristics of electron rectifier and LED fluorescent lamp is mated.Above-mentioned various LED fluorescent lamps are installed in the fluorescent lamps connected connection circuit of the utility model embodiment, fluorescent lamps connected connection circuit is like this compared with existing fluorescent lamp circuit, circuit structure does not change, only be to have replaced traditional fluorescent lamp with the LED fluorescent lamp of the utility model embodiment, can economize on resources greatly like this, user-friendly.

Description of drawings

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the structural representation of existing Inductive ballast fluorescent lamp circuit;

Fig. 2 is the structural representation of existing a kind of electric ballast fluorescent lamp circuit;

Fig. 3 is the structural representation of existing another kind of electric ballast fluorescent lamp circuit;

Fig. 4 is existing a kind of LED fluorescent lamp peripheral circuit connected mode schematic diagram;

Fig. 5 is the internal circuit configuration schematic diagram of LED fluorescent lamp shown in Figure 4;

Fig. 6 is existing another kind of LED fluorescent lamp peripheral circuit connected mode schematic diagram;

Fig. 7 is the internal circuit configuration schematic diagram of LED fluorescent lamp shown in Figure 6;

Fig. 8 is existing another kind of LED fluorescent lamp peripheral circuit connected mode schematic diagram;

Fig. 9 is the internal circuit configuration schematic diagram of LED fluorescent lamp shown in Figure 8;

Figure 10 is the peripheral circuit connected mode schematic diagram of existing another kind of LED fluorescent lamp;

Figure 11 is the internal circuit configuration schematic diagram of first embodiment of LED fluorescent lamp of the present utility model;

Figure 12 is the internal circuit configuration schematic diagram of second embodiment of LED fluorescent lamp of the present utility model;

Figure 13 is the internal circuit configuration schematic diagram of the 3rd embodiment of LED fluorescent lamp of the present utility model;

Figure 14 is the internal circuit configuration schematic diagram of the 4th embodiment of LED fluorescent lamp of the present utility model;

Figure 15 is the internal circuit configuration schematic diagram of the 5th embodiment of LED fluorescent lamp of the present utility model;

Figure 16 is the internal circuit configuration schematic diagram of the 6th embodiment of LED fluorescent lamp of the present utility model;

Figure 17 is the internal circuit configuration schematic diagram of the 7th embodiment of LED fluorescent lamp of the present utility model;

Figure 18 is the internal circuit configuration schematic diagram of the 8th embodiment of LED fluorescent lamp of the present utility model;

Figure 19 is the internal circuit configuration schematic diagram of the 9th embodiment of LED fluorescent lamp of the present utility model;

Figure 20 is the internal circuit configuration schematic diagram of the tenth embodiment of LED fluorescent lamp of the present utility model;

Figure 21 is the internal circuit configuration schematic diagram of the 11 embodiment of LED fluorescent lamp of the present utility model;

Figure 22 is the internal circuit configuration schematic diagram of the 12 embodiment of LED fluorescent lamp of the present utility model;

Figure 23 is that LED daylight lamp circuit shown in Figure 13 is connected to the electrical block diagram in the Inductive ballast fluorescent lamp peripheral circuit shown in Figure 1;

Figure 24 is that LED daylight lamp circuit shown in Figure 13 is connected to the electrical block diagram in the electric ballast fluorescent lamp peripheral circuit shown in Figure 2;

Figure 25 is that LED daylight lamp circuit shown in Figure 13 is connected to the electrical block diagram in the electric ballast fluorescent lamp peripheral circuit shown in Figure 3;

Figure 26 is that LED daylight lamp circuit shown in Figure 16 is connected to the electrical block diagram in the Inductive ballast fluorescent lamp peripheral circuit shown in Figure 1;

Figure 27 is that LED daylight lamp circuit shown in Figure 16 is connected to the electrical block diagram in the electric ballast fluorescent lamp peripheral circuit shown in Figure 2;

Figure 28 is that LED daylight lamp circuit shown in Figure 16 is connected to the electrical block diagram in the electric ballast fluorescent lamp peripheral circuit shown in Figure 3;

Figure 29 is the internal circuit configuration schematic diagram of the 13 embodiment of LED fluorescent lamp of the present utility model;

Figure 30 is the internal circuit configuration schematic diagram of the 14 embodiment of LED fluorescent lamp of the present utility model;

Figure 31 is the internal circuit configuration schematic diagram of the 15 embodiment of LED fluorescent lamp of the present utility model;

Figure 32 is the internal circuit configuration schematic diagram of the 16 embodiment of LED fluorescent lamp of the present utility model;

Figure 33 is that LED daylight lamp circuit shown in Figure 30 is connected to the electrical block diagram in the Inductive ballast fluorescent lamp peripheral circuit shown in Figure 1;

Figure 34 is that LED daylight lamp circuit shown in Figure 30 is connected to the electrical block diagram in the electric ballast fluorescent lamp peripheral circuit shown in Figure 2;

Figure 35 is that LED daylight lamp circuit shown in Figure 30 is connected to the electrical block diagram in the electric ballast fluorescent lamp peripheral circuit shown in Figure 3;

Figure 36 is that LED daylight lamp circuit shown in Figure 32 is connected to the electrical block diagram in the Inductive ballast fluorescent lamp peripheral circuit shown in Figure 1;

Figure 37 is that LED daylight lamp circuit shown in Figure 32 is connected to the electrical block diagram in the electric ballast fluorescent lamp peripheral circuit shown in Figure 2;

Figure 38 is that LED daylight lamp circuit shown in Figure 32 is connected to the electrical block diagram in the electric ballast fluorescent lamp peripheral circuit shown in Figure 3.

The specific embodiment

Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described.

A kind of LED fluorescent lamp that the utility model provides, comprise the LED fluorescent tube, described LED fluorescent tube comprises first end cap and second end cap, described first end cap and described second end cap comprise two pins respectively, in described LED fluorescent tube inside, between two pins of described first end cap, be parallel with first inductance and first bridge rectifier, between two pins of described second end cap, be parallel with second inductance and second bridge rectifier, the output parallel connection LED lamp group of described first bridge rectifier and described second bridge rectifier, described LED lamp group comprises the led light source group and is used for providing the circuit of constant current or constant voltage to described led light source group, between a pin of the input of described LED lamp group and described second end cap, be in series with first electric capacity, between a pin of the output of described LED lamp group and described first end cap, be in series with second electric capacity.Provide the circuit of constant current or constant voltage to can be in resistance, transistor and the LED power supply driver any described in the specific implementation.In the specific implementation, when the circuit that constant current or constant voltage are provided adopts in resistance, the transistor any, the internal circuit configuration of this LED fluorescent lamp can be as shown in figure 11, and when the circuit that constant current or constant voltage are provided adopted power supply driver, the LED fluorescent lamp internal circuit configuration of present embodiment can be as Figure 15 and shown in Figure 16.

As shown in figure 11, the internal circuit of LED fluorescent lamp of the present utility model can comprise pin 1, pin 2, pin 3 and pin 4, in the specific implementation, described pin 1 and pin 2 can be positioned on first end cap of LED fluorescent lamp, and described pin 3 and pin 4 can be positioned on second end cap of LED fluorescent lamp.First bridge rectifier of forming by Q1-Q4 in parallel between pin 1 and pin 2, between the both positive and negative polarity of the output of first bridge rectifier of forming by Q1-Q4, connect a filter capacitor C9 (in the specific implementation, can not comprise filter capacitor C9), between pin 3 and pin 4, be parallel with second bridge rectifier of forming by Q5-Q8, between the both positive and negative polarity of the output of second bridge rectifier of forming by Q5-Q8, connect a filter capacitor C10 (in the specific implementation, can not comprise filter capacitor C10), as shown in Figure 11, the bridge rectifier between pin 1 and the pin 2, bridge rectifier between filter capacitor and pin 3 and the pin 4, filter capacitor is symmetrical structure.Be connected the LED lamp group of forming by circuit T1 that constant current or constant voltage are provided and led light source group (wherein D1, D2, D3.....Dn are the LED lamp) at the two ends of described filter capacitor C9 and filter capacitor C10, further, series inductance L3 between the input of LED lamp group and pin 3, series inductance L4 between the output of LED lamp group and pin 2.Provide the circuit T1 of constant current or constant voltage to can be in resistance, the transistor any in the specific implementation.

When LED daylight lamp circuit shown in Figure 11 being connected in the Inductive ballast fluorescent lamp peripheral circuit shown in Figure 1, the pin 1 of LED daylight lamp circuit is connected to Inductive ballast L in the fluorescent lamp peripheral circuit and exchanges the AC input, the pin 3 of LED daylight lamp circuit is connected the output of described Inductive ballast, the pin 2 of LED daylight lamp circuit and pin 4 are connected on the starter base in the fluorescent lamp peripheral circuit, preferable, on the described starter base starter is not installed.When receiving in the fluorescent lamp peripheral circuit, can not change the circuit structure of former fluorescent lamp peripheral circuit with LED shown in Figure 11 is fluorescent lamps connected.And, when LED daylight lamp circuit shown in Figure 11 being connected in the Inductive ballast fluorescent lamp peripheral circuit shown in Figure 1, under the effect of Inductive ballast fluorescent lamp circuit civil power low frequency (being generally 50-60HZ), capacitor C 1 and capacitor C 2 show very big capacitive reactance, can think open circuit, inductance L 1 and inductance L 2 can be thought short circuit, therefore, therefore, can think that the live wire (perhaps zero line) of civil power is to import simultaneously from pin 1 and pin 2, and can think that the zero line (perhaps live wire) of civil power is to import simultaneously from pin 3 and pin 4.Further, after two groups of bridge rectifiers of the alternating current of input through the Q1-Q8 composition, alternating current is converted to Rectified alternating current, the positive pole of described Rectified alternating current is last, negative pole after the filtering of Rectified alternating current through filtering capacitor C 9 and filter capacitor C10, changes comparatively level and smooth dc high-voltage down into, this dc high-voltage is flowed through LED lamp D1, LED lamp D2.......LED lamp Dn to ground through T1, and the LED lamp is lighted.

When the LED daylight lamp circuit among Figure 11 being connected in the electric ballast fluorescent lamp peripheral circuit shown in Figure 2, the pin 1 of LED fluorescent lamp, pin 2, pin 3 and pin 4 are connected respectively to four outputs of electric ballast, the input of electric ballast is connected to and exchanges the AC input, in the specific implementation, when exchanging AC input incoming transport electricity, inductance L 1, inductance L 2, capacitor C 1, capacitor C 2 will influence the output characteristics of electric ballast, so that input pin 1, pin 2, circuit parameter between pin 3 and the pin 4 mates fully with the parameter of lighting the LED fluorescent lamp, when not changing primary electron ballast fluorescent lamp circuit, normally the LED lamp is lighted to be implemented in.

When the LED daylight lamp circuit among Figure 11 being connected in the electric ballast fluorescent lamp peripheral circuit shown in Figure 3, an output, pin 3, the pin 4 that the pin 1 of LED fluorescent lamp and pin 2 are connected to electric ballast simultaneously is connected to another output of electric ballast simultaneously, and the input of electric ballast is connected to and exchanges the AC input.In the specific implementation, when exchanging AC input incoming transport electricity, the inductance L 1 of present embodiment, inductance L 2, capacitor C 1, capacitor C 2 will be regulated the high frequency voltage of electric ballast output, so that the circuit parameter between input pin 1, pin 2, pin 3 and the pin 4 mates fully with the parameter of lighting the LED fluorescent lamp, when not changing primary electron ballast fluorescent lamp circuit, normally the LED lamp is lighted to be implemented in.

As shown in figure 15, it replaces the circuit T1 that constant current or constant voltage are provided shown in Figure 11 with power supply driver.In the specific implementation, when adopting daylight lamp circuit shown in Figure 15, the mode of the mode of its access Inductive ballast fluorescent lamp circuit and access electric ballast fluorescent lamp circuit is identical with Figure 11, does not give unnecessary details at this.

In addition, shown in Figure 16 (having removed capacitor C 9 and capacitor C 10 among Figure 15), can also on the basis of daylight lamp circuit shown in Figure 15, increase the series circuit that forms by resistance R x and starter S1.When adopting after daylight lamp circuit shown in Figure 16 inserts Fig. 2 and electric ballast fluorescent lamp circuit shown in Figure 3, the output of electron rectifier is through behind the bridge rectifier, can between the both positive and negative polarity that the direct current of bridge rectifier is exported, produce a high voltage, at this moment, the conducting that is triggered of starter S1 moment, be short-circuited, having electric current on resistance R x flows through, this electric current can feed back to the input of electric ballast, make electron rectifier change output characteristics, thus the input characteristics of coupling LED fluorescent lamp.In the specific implementation, the element of connecting with resistance R x is not limited to starter, also can be switch elements such as controllable silicon, triode, relay, Zener diode, as long as these switch elements can satisfy in LED daylight lamp circuit access electric ballast fluorescent lamp circuit, between the both positive and negative polarity of the output of bridge rectifier, can produce certain voltage, after this voltage can make these switch elements moments be switched on, produce current flowing resistance Rx and get final product.

The another kind of LED fluorescent lamp that the utility model provides, comprise the LED fluorescent tube, described LED fluorescent tube comprises first end cap and second end cap, described first end cap and described second end cap comprise two pins respectively, in described LED fluorescent tube inside, between two pins of described first end cap, be parallel with first inductance, first bridge rectifier and first filter capacitor, between two pins of described second end cap, be parallel with second inductance, second bridge rectifier and second filter capacitor, the output parallel connection LED lamp group of described first bridge rectifier and described second bridge rectifier, described LED lamp group comprises the led light source group and is used for providing the circuit of constant current or constant voltage to described led light source group, between a pin of the input of described LED lamp group and described second end cap, be in series with first electric capacity and the 3rd inductance, between a pin of the output of described LED lamp group and described first end cap, be in series with second electric capacity and the 4th inductance.In the specific implementation, can not comprise described first filter capacitor and described second filter capacitor.Provide the circuit of constant current or constant voltage to can be in resistance, transistor and the LED power supply driver any in the specific implementation.In the specific implementation, when the circuit that constant current or constant voltage are provided adopts in resistance, the transistor any, the internal circuit configuration of the LED fluorescent lamp of present embodiment can be as shown in figure 12, and when the circuit that constant current or constant voltage are provided adopted power supply driver, the LED fluorescent lamp internal circuit configuration of present embodiment can be as Figure 17 and shown in Figure 180.

As shown in figure 12, LED daylight lamp circuit of the present utility model can be on the basis of circuit shown in Figure 11, series inductance L3 between capacitor C 1 and LED lamp group input, series inductance L4 between capacitor C 2 and pin 2.The function that circuit shown in Figure 12 and circuit shown in Figure 11 are realized is basic identical, its still can directly be linked into traditional Inductive ballast fluorescent lamp circuit shown in Figure 1 or directly insert Fig. 2 and conventional electronic ballast fluorescent lamp circuit shown in Figure 3 in.After effective cooperation of present embodiment by inductance L 1, inductance L 2, inductance L 3, inductance L 4, capacitor C 1, capacitor C 2, the Inductive ballast in the conventional fluorescent circuit for lamp or the output characteristics of electric ballast and the input characteristics of LED fluorescent lamp are mated more, improve the illumination effect of LED fluorescent lamp, strengthen the stability of entire circuit.

In the specific implementation, the mode that daylight lamp circuit shown in Figure 12 inserts the mode of Inductive ballast fluorescent lamp circuit shown in Figure 1 and Fig. 2 and access electric ballast fluorescent lamp circuit shown in Figure 3 is identical with Figure 11, does not give unnecessary details at this.

When LED daylight lamp circuit shown in Figure 12 being connected in the Inductive ballast fluorescent lamp peripheral circuit shown in Figure 1, the pin 1 of LED daylight lamp circuit is connected to Inductive ballast L in the fluorescent lamp peripheral circuit and exchanges the AC input, the pin 3 of LED daylight lamp circuit is connected the output of described Inductive ballast, the pin 2 of LED daylight lamp circuit and pin 4 are connected on the starter base Y in the fluorescent lamp peripheral circuit, and preferable mode is on the described starter base Y starter not to be installed.Concrete, when LED daylight lamp circuit shown in Figure 12 being connected in the Inductive ballast fluorescent lamp peripheral circuit shown in Figure 3, civil power is after the input of interchange AC input, one tunnel pin 3 through Inductive ballast L arrival LED fluorescent lamp, another road is directly inputted to the pin 1 of LED fluorescent lamp, at this moment, under the effect of Inductive ballast fluorescent lamp circuit civil power low frequency (being generally 50-60HZ), inductance L 1, inductance L 2, the induction reactance of inductance L 3 and inductance L 4 is very little, capacitor C 1, the capacitive reactance of capacitor C 2 is very big, inductance L 1, inductance L 2, inductance L 3 and inductance L 4 can be thought short circuit, and capacitor C 1 and capacitor C 2 can be thought open circuit.Therefore, after two groups of bridge rectifiers of the alternating current of input through the Q1-Q8 composition, alternating current is converted to Rectified alternating current, the positive pole of described Rectified alternating current is last, negative pole after the filtering of Rectified alternating current through filtering capacitor C 1 and filter capacitor C2, changes comparatively level and smooth dc high-voltage down into, this dc high-voltage is flowed through LED lamp D1, LED lamp D2.......LED lamp Dn to ground through T1, and the LED lamp is lighted.Simultaneously, directly arrive starter base Y through live wire, zero line after inductance L 1 and inductance L 2 short circuits.Owing to the starter on the starter base Y is taken down in the present embodiment, so the voltage that the LED lamp does not have a lamp tube ends is higher than the starting voltage of starter, and then may make the LED lamp produce the defective of flicker.

In the time of in LED daylight lamp circuit shown in Figure 12 being connected to Fig. 2 and Inductive ballast fluorescent lamp peripheral circuit shown in Figure 3, inductance L 1, inductance L 2, inductance L 3, inductance L 4, capacitor C 1 and capacitor C 2 will influence the output characteristics of electric ballast, high frequency voltage to electric ballast output is regulated, so that the circuit parameter between input pin 1, pin 2, pin 3 and the pin 4 mates fully with the parameter of lighting the LED fluorescent lamp, when not changing primary electron ballast fluorescent lamp circuit, normally the LED lamp is lighted to be implemented in.

As shown in figure 17, it replaces T1 shown in Figure 12 with the LED power supply driver.When adopting daylight lamp circuit shown in Figure 17, its mode that inserts the mode of Inductive ballast fluorescent lamp circuit shown in Figure 1 and Fig. 2 and access electric ballast fluorescent lamp circuit shown in Figure 3 is identical with Figure 11, does not give unnecessary details at this.

In addition, shown in Figure 18 (having removed capacitor C 9 and capacitor C 10 among Figure 17), can also on the basis of daylight lamp circuit shown in Figure 17, increase the series circuit that forms by resistance R x and starter S1.The effect of Rx among Figure 18 and starter S1 with and alternative elements and Figure 16 similar, do not give unnecessary details at this.

The another kind of LED fluorescent lamp that the utility model provides, comprise the LED fluorescent tube, described LED fluorescent tube comprises first end cap and second end cap, described first end cap and described second end cap comprise two pins respectively, in described LED fluorescent tube inside, between two pins of described first end cap, be parallel with first inductance successively, the circuit and first bridge rectifier that form by the series connection of the 3rd electric capacity and first resistance, between two pins of described second end cap, be parallel with second inductance successively, the circuit and second bridge rectifier that form by the series connection of second electric capacity and second resistance, the output parallel connection LED lamp group of described first bridge rectifier and described second bridge rectifier, described LED lamp group comprises the led light source group and is used for providing the circuit of constant current or constant voltage to described led light source group, between a pin of the input of described LED lamp group and described second end cap, be in series with first electric capacity and the 3rd inductance, between a pin of the output of described LED lamp group and described first end cap, be in series with second electric capacity and the 4th inductance.Provide the circuit of constant current or constant voltage to can be in resistance, transistor and the LED power supply driver any in the specific implementation.In the specific implementation, when the circuit that constant current or constant voltage are provided adopts in resistance, the transistor any, the internal circuit configuration of this LED fluorescent lamp can be as shown in figure 13, and when the circuit that constant current or constant voltage are provided adopted power supply driver, this LED fluorescent lamp internal circuit configuration can be as Figure 19 and shown in Figure 20.In the specific implementation, can not comprise first filter capacitor and second filter capacitor.

As shown in figure 13, LED daylight lamp circuit of the present utility model can be on the basis of circuit shown in Figure 12, the circuit that forms by capacitor C 3 and resistance R 3 series connection in parallel between pin 1 and pin 2, the circuit that forms by capacitor C 4 and resistance R 4 series connection in parallel between pin 3 and pin 4.The function that circuit shown in Figure 13 and circuit shown in Figure 10 are realized is basic identical, and it still can directly be linked in traditional Inductive ballast fluorescent lamp circuit shown in Figure 1 or Fig. 2 and Fig. 3 conventional electronic ballast fluorescent lamp circuit.After effective cooperation of present embodiment by inductance L 1, capacitor C 3, resistance R 3, inductance L 2, capacitor C 4, inductance L 3, inductance L 4 and resistance R 4, the Inductive ballast in the conventional fluorescent circuit for lamp or the output characteristics of electric ballast and the input characteristics of LED fluorescent lamp are mated more, improve the illumination effect of LED fluorescent lamp, strengthen the stability of entire circuit.

In the specific implementation, the mode that daylight lamp circuit shown in Figure 13 inserts the mode of Inductive ballast fluorescent lamp circuit shown in Figure 1 and Fig. 2 and access electric ballast fluorescent lamp circuit shown in Figure 3 is identical with Figure 11, specifically referring to Figure 23, Figure 24 and Figure 25.

In Figure 23, under the effect of low frequency civil power, capacitor C 1, capacitor C 2, capacitor C 3, capacitor C 4 are similar to open circuit, inductance L 1 and inductance L 2 and are similar to short circuit, therefore after the AC ac input end inserts civil power, its circuit equivalent inserts in the peripheral circuit shown in Figure 1 in circuit shown in Figure 12, does not give unnecessary details at this.In Figure 24 and Figure 25, inductance L 1, inductance L 2, inductance L 3, inductance L 4, capacitor C 1, capacitor C 2, capacitor C 3 and capacitor C 4 will influence the output characteristics of electric ballast, high frequency voltage to electric ballast output is regulated, so that the circuit parameter between input pin 1, pin 2, pin 3 and the pin 4 mates fully with the parameter of lighting the LED fluorescent lamp, when not changing primary electron ballast fluorescent lamp circuit, normally the LED lamp is lighted to be implemented in.

As shown in figure 19, it replaces T1 shown in Figure 13 with the LED power supply driver.When adopting daylight lamp circuit shown in Figure 19, its mode that inserts the mode of Inductive ballast fluorescent lamp circuit shown in Figure 1 and Fig. 2 and access electric ballast fluorescent lamp circuit shown in Figure 3 is identical with Figure 11, specifically referring to Figure 26, Figure 27 and shown in Figure 28.

In addition, shown in Figure 20 (having removed capacitor C 9 and capacitor C 10 among Figure 19), can also on the basis of daylight lamp circuit shown in Figure 19, increase the series circuit that forms by resistance R x and starter S1.The effect of Rx among Figure 20 and starter S1 with and alternative elements and Figure 16 similar, do not give unnecessary details at this.

The another kind of LED fluorescent lamp that the utility model provides, comprise the LED fluorescent tube, described LED fluorescent tube comprises first end cap and second end cap, described first end cap and described second end cap comprise two pins respectively, in described LED fluorescent tube inside, between two pins of described first end cap, be parallel with the circuit that first inductance and the 5th capacitances in series form, first bridge rectifier and first filter capacitor, between two pins of described second end cap, be parallel with the circuit that second inductance and the 6th capacitances in series form, second rectification circuit and second filter capacitor, the output parallel connection LED lamp group of described first bridge rectifier and described second bridge rectifier, described LED lamp group comprises the led light source group and is used for providing the circuit of constant current or constant voltage to described led light source group, between a pin of the input of described LED lamp group and described second end cap, be in series with first electric capacity and the 3rd inductance, between a pin of the output of described LED lamp group and described first end cap, be in series with second electric capacity and the 4th inductance.Provide the circuit of constant current or constant voltage to can be in resistance, transistor and the LED power supply driver any in the specific implementation.In the specific implementation, when the circuit that constant current or constant voltage are provided adopts in resistance, the transistor any, the internal circuit configuration of this LED fluorescent lamp can be as shown in figure 14, and when the circuit that constant current or constant voltage are provided adopted power supply driver, this LED fluorescent lamp internal circuit configuration can be as Figure 21 and shown in Figure 22.In the specific implementation, can not comprise described first filter capacitor and described second filter capacitor.

As shown in figure 14, LED daylight lamp circuit of the present utility model can be on the basis of circuit shown in Figure 12, the capacitor C 5 of connecting between inductance L 1 and pin 2, the capacitor C 6 of connecting between inductance L 2 and pin 4.The function that present embodiment and LED fluorescent lamp embodiment illustrated in fig. 11 are realized is basic identical, and it still can directly be linked in traditional Inductive ballast fluorescent lamp circuit or the conventional electronic ballast fluorescent lamp circuit.After effective cooperation of present embodiment by inductance L 1, capacitor C 5, inductance L 2, capacitor C 6, inductance L 3, inductance L 4, capacitor C 1 and capacitor C 2, the Inductive ballast in the conventional fluorescent circuit for lamp or the output characteristics of electric ballast and the input characteristics of LED fluorescent lamp are mated more, improve the illumination effect of LED fluorescent lamp, strengthen the stability of entire circuit.

In the specific implementation, the mode that daylight lamp circuit shown in Figure 14 inserts the mode of Inductive ballast fluorescent lamp circuit shown in Figure 1 and Fig. 2 and access electric ballast fluorescent lamp circuit shown in Figure 3 is identical with Figure 11, does not give unnecessary details at this.

And when inserting circuit shown in Figure 14 in the Inductive ballast fluorescent lamp circuit shown in Figure 1, under the effect of low frequency civil power, capacitor C 1, capacitor C 2, capacitor C 5, capacitor C 6 is similar to open circuit, inductance L 1 and inductance L 2 are similar to short circuit, therefore after the AC ac input end inserts civil power, its circuit equivalent directly inserts the external AC input in the rectification circuit that the rectification circuit and the Q5-Q8 of Q1-Q4 formation form, in this case, after two groups of bridge rectifiers of the alternating current of input through the Q1-Q8 composition, alternating current is converted to Rectified alternating current, the positive pole of described Rectified alternating current is last, negative pole is following, after the filtering of Rectified alternating current through filtering capacitor C 1 and filter capacitor C2, change comparatively level and smooth dc high-voltage into, this dc high-voltage is through the T1 LED lamp D1 that flows through, LED lamp D2.......LED lamp Dn is lighted the LED lamp to ground.Simultaneously, directly arrive starter base Y through live wire, zero line after inductance L 1 and inductance L 2 short circuits.Owing to the starter on the starter base Y is taken down in the present embodiment, so the voltage that the LED lamp does not have a lamp tube ends is higher than the starting voltage of starter, and then may make the LED lamp produce the defective of flicker.

In the time of in circuit shown in Figure 14 being inserted Fig. 2 and electric ballast fluorescent lamp circuit shown in Figure 3, inductance L 1, inductance L 2, inductance L 3, inductance L 4, capacitor C 1, capacitor C 2, capacitor C 5 and capacitor C 6 will influence the output characteristics of electric ballast, high frequency voltage to electric ballast output is regulated, so that the circuit parameter between input pin 1, pin 2, pin 3 and the pin 4 mates fully with the parameter of lighting the LED fluorescent lamp, when not changing primary electron ballast fluorescent lamp circuit, normally the LED lamp is lighted to be implemented in.

As shown in figure 21, it replaces T1 shown in Figure 14 with the LED power supply driver.When adopting daylight lamp circuit shown in Figure 21, its mode that inserts the mode of Inductive ballast fluorescent lamp circuit shown in Figure 1 and Fig. 2 and access electric ballast fluorescent lamp circuit shown in Figure 3 is identical with Figure 11, does not give unnecessary details at this.

In addition, shown in Figure 22 (having removed capacitor C 9 and capacitor C 10 among Figure 21), can also on the basis of daylight lamp circuit shown in Figure 21, increase the series circuit that forms by resistance R x and starter S1.The effect of Rx among Figure 22 and starter S1 with and alternative elements and Figure 16 similar, do not give unnecessary details at this.

The another kind of LED fluorescent lamp that the utility model provides, comprise the LED fluorescent tube, described LED fluorescent tube comprises first end cap and second end cap, described first end cap and described second end cap comprise two pins respectively, in described LED fluorescent tube inside, between two pins of described first end cap, be parallel with the circuit that the series connection of first inductance and first switch element forms, the circuit and first bridge rectifier that the 3rd electric capacity and the series connection of first resistance form, between two pins of described second end cap, be parallel with the circuit that the series connection of second inductance and second switch element forms, the circuit and second bridge rectifier that the 4th electric capacity and the series connection of second resistance form, the output parallel connection LED lamp group of described first bridge rectifier and described second bridge rectifier, described LED lamp group comprises the led light source group and is used for providing the circuit of constant current or constant voltage to described led light source group, between a pin of the input of described LED lamp group and described second end cap, be in series with first electric capacity and the 3rd inductance, between a pin of the output of described LED lamp group and described first end cap, be in series with second electric capacity and the 4th inductance.In the specific implementation, described first switch element and described second switch element can be in controllable silicon, photoelectrical coupler, relay and the transistor any.When described first switch element and/or described second switch element are controllable silicon, described silicon controlled trigger end as first switch element is connected on the connecting line between described first electric capacity and described first resistance, and described silicon controlled trigger end as the second switch element is connected on the connecting line between described second electric capacity and described second resistance.In the specific implementation, when providing the circuit of constant current or constant voltage to adopt in resistance, the transistor any, the internal circuit configuration of this LED fluorescent lamp can be as shown in figure 29, and when the circuit that constant current or constant voltage are provided adopted power supply driver, this LED fluorescent lamp internal circuit configuration can be as shown in figure 31.

As shown in figure 29, LED daylight lamp circuit of the present utility model can be on the basis of circuit shown in Figure 13, between inductance L 1 and pin 2, be connected in series a controllable silicon T2, the trigger end G of described controllable silicon T2 is connected between capacitor C 3 and the resistance R 3, be connected in series a controllable silicon T3 between inductance L 2 and pin 4, the trigger end G of described silicon controlled T3 is connected between capacitor C 4 and the resistance R 4.The function that present embodiment and LED fluorescent lamp embodiment illustrated in fig. 11 are realized is basic identical, it still can directly be linked in traditional Inductive ballast fluorescent lamp circuit shown in Figure 1 or Fig. 2 and the conventional electronic ballast fluorescent lamp circuit shown in Figure 3, and when the LED fluorescent lamp that adopts present embodiment inserted the Inductive ballast fluorescent lamp circuit, the starter on the described Inductive ballast fluorescent lamp circuit can keep.After effective cooperation of present embodiment by capacitor C 1, capacitor C 2, inductance L 1, capacitor C 3, resistance R 3, inductance L 2, capacitor C 4, resistance R 4, controllable silicon T2, controllable silicon T3, inductance L 3, inductance L 4, the Inductive ballast in the conventional fluorescent circuit for lamp or the output characteristics of electric ballast and the input characteristics of LED fluorescent lamp are mated more, improve the illumination effect of LED fluorescent lamp, strengthen the stability of entire circuit.

When being connected to LED daylight lamp circuit shown in Figure 29 in the Inductive ballast fluorescent lamp peripheral circuit shown in Figure 1, the pin 1 of LED daylight lamp circuit is connected to Inductive ballast L in the fluorescent lamp peripheral circuit and exchanges the AC input, the pin 3 of LED daylight lamp circuit is connected the output of described Inductive ballast, the pin 2 of LED daylight lamp circuit and pin 4 are connected on the starter base Y in the fluorescent lamp peripheral circuit, and on the described starter base Y starter S can be installed.When receiving in the fluorescent lamp peripheral circuit, can not change the circuit structure of former fluorescent lamp peripheral circuit with LED shown in Figure 29 is fluorescent lamps connected.

Concrete, when LED daylight lamp circuit shown in Figure 29 being connected in the Inductive ballast fluorescent lamp peripheral circuit shown in Figure 1, after inserting civil power, civil power one tunnel arrives the pin 3 of LED fluorescent lamp through Inductive ballast L, another road is directly inputted to the pin 1 of LED fluorescent lamp, capacitor C 3 and capacitor C 4 can produce very big capacitive reactance (in the specific implementation to low frequency (50-60HZ) civil power in the present embodiment, can realize by the capacitance of adjusting capacitor C 3 and capacitor C 4), the voltage drop that produces on resistance R 3 and resistance R 4 is very little like this, is not enough to trigger controllable silicon T2 and controllable silicon T3 conducting.Therefore, in the present embodiment, the live wire of civil power and zero line can not arrive the two ends of starter S by pin 2 and pin 4, therefore, also can not impact the luminous of circuit even present embodiment keeps starter S.Meanwhile, the series loop that capacitor C 3, resistance R 3 form in the present embodiment, and the series loop that forms of capacitor C 4, resistance R 4 can adjust its electric current of flowing through, and such adjustment can prevent that also the LED fluorescent lamp from avoiding being subjected to starter to influence and produce flicker.

When the LED daylight lamp circuit among Figure 29 being connected in the electric ballast fluorescent lamp peripheral circuit shown in Figure 2, the pin 1 of LED fluorescent lamp and pin 2 are connected respectively to two outputs of electric ballast, and pin 3 and pin 4 are connected respectively to other two outputs of electric ballast.Present embodiment can pass through the capacity of appropriate design capacitor C 1, capacitor C 2, capacitor C 3, capacitor C 4 and the resistance of appropriate design resistance R 3 and resistance R 4, make it under the situation that receives the high-frequency alternating current input, controllable silicon T2 and controllable silicon T3 are become conducting state by off-state.

When the LED daylight lamp circuit among Figure 29 being connected in the electric ballast fluorescent lamp peripheral circuit shown in Figure 3, an output, pin 3, the pin 4 that the pin 1 of LED fluorescent lamp and pin 2 are connected to electric ballast simultaneously is connected to another output of electric ballast simultaneously, and the input of electric ballast is connected to and exchanges the AC input.Present embodiment can pass through the capacity of appropriate design capacitor C 1, capacitor C 2, capacitor C 3, capacitor C 4 and the resistance of appropriate design resistance R 3 and resistance R 4, make it under the situation that receives the high-frequency alternating current input, controllable silicon T2 and controllable silicon T3 are become conducting state by off-state.

As shown in figure 31, it replaces T1 shown in Figure 29 with the LED power supply driver.When adopting daylight lamp circuit shown in Figure 31, its mode that inserts the mode of Inductive ballast fluorescent lamp circuit shown in Figure 1 and Fig. 2 and access electric ballast fluorescent lamp circuit shown in Figure 3 is identical with Figure 29, does not give unnecessary details at this.The another kind of LED fluorescent lamp that the utility model provides, comprise the LED fluorescent tube, described LED fluorescent tube comprises first end cap and second end cap, described first end cap and described second end cap comprise two pins respectively, in described LED fluorescent tube inside, between two pins of described first end cap, be parallel with the circuit that first inductance and the 7th electric capacity and the first switch element three connect and form, the circuit and first bridge rectifier that the 3rd electric capacity and first resistance are connected and formed, between two pins of described second end cap, be parallel with the circuit that second inductance and the 8th electric capacity and second switch element three are connected and formed, the circuit and second bridge rectifier that the 4th electric capacity and second resistance are connected and formed, the output parallel connection LED lamp group of described first bridge rectifier and described second bridge rectifier, described LED lamp group comprises the led light source group and is used for providing the circuit of constant current or constant voltage to described led light source group, between a pin of the input of described LED lamp group and described second end cap, be in series with first electric capacity and the 3rd inductance, between a pin of the output of described LED lamp group and described first end cap, be in series with second electric capacity and the 4th inductance.In the specific implementation, described first switch element and described second switch element can be in controllable silicon, photoelectrical coupler, relay and the transistor any.When described first switch element and/or described second switch element are controllable silicon, described silicon controlled trigger end as first switch element is connected on the connecting line between described the 3rd electric capacity and described the 3rd resistance, and described silicon controlled trigger end as the second switch element is connected on the connecting line between described the 4th electric capacity and described the 4th resistance.In the specific implementation, when the circuit that constant current or constant voltage are provided adopts in resistance, the transistor any, the internal circuit configuration of this LED fluorescent lamp can be as shown in figure 30, and when the circuit that constant current or constant voltage are provided adopted power supply driver, this LED fluorescent lamp internal circuit configuration can be shown in figure 32.

As Figure 30, LED daylight lamp circuit of the present utility model can be on the basis of circuit shown in Figure 29, series connection one capacitor C 7 between inductance L 1 and controllable silicon T2, series connection one capacitor C 8 between inductance L 2 and controllable silicon T3.The effect of capacitor C 7 and capacitor C 8 also is a coupling of further improving the input characteristics of the output characteristics of Inductive ballast or electric ballast and LED fluorescent lamp.The function that present embodiment and LED fluorescent lamp embodiment illustrated in fig. 11 are realized is basic identical, it still can directly be linked in traditional Inductive ballast fluorescent lamp circuit shown in Figure 1 or Fig. 2 and the conventional electronic ballast fluorescent lamp circuit shown in Figure 3, and when the LED fluorescent lamp that adopts present embodiment inserted the Inductive ballast fluorescent lamp circuit, the starter on the described Inductive ballast fluorescent lamp circuit can keep.

In the specific implementation, the mode that daylight lamp circuit shown in Figure 30 inserts the mode of Inductive ballast fluorescent lamp circuit shown in Figure 1 and Fig. 2 and access electric ballast fluorescent lamp circuit shown in Figure 3 is identical with Figure 29, specifically referring to Figure 33, Figure 34 and Figure 35.

In Figure 33, capacitor C 7 and capacitor C 8 can produce very big capacitive reactance to low frequency (50-60HZ) civil power and be not enough to trigger controllable silicon T2 and controllable silicon T3 conducting like this.Therefore, in the present embodiment, the live wire of civil power and zero line can not arrive the two ends of starter S by pin 2 and pin 4, therefore, also can not impact the luminous of circuit even present embodiment keeps starter S.

In Figure 34 and Figure 35, can pass through the capacity of appropriate design capacitor C 1, capacitor C 2, capacitor C 3, capacitor C 4, capacitor C 7, capacitor C 8 and the resistance of appropriate design resistance R 3 and resistance R 4, make it under the situation that receives the high-frequency alternating current input, controllable silicon T2 and controllable silicon T3 are become conducting state by off-state.And then the light source of LED lamp group is normally lighted in realization.

Shown in figure 32, it replaces T1 shown in Figure 30 with the LED power supply driver.When adopting daylight lamp circuit shown in Figure 32, its mode that inserts the mode of Inductive ballast fluorescent lamp circuit shown in Figure 1 and Fig. 2 and access electric ballast fluorescent lamp circuit shown in Figure 3 is identical with Figure 30, specifically referring to Figure 36, Figure 37 and Figure 38.

Above disclosed only is the utility model preferred embodiment, can not limit the interest field of the utility model certainly with this, and therefore the equivalent variations of being done according to the utility model claim still belongs to the scope that the utility model is contained.

Claims

1. LED fluorescent lamp, it is characterized in that, comprise the LED fluorescent tube, described LED fluorescent tube comprises first end cap and second end cap, described first end cap and described second end cap comprise two pins respectively, in described LED fluorescent tube inside, between two pins of described first end cap, be parallel with first inductance and first bridge rectifier, between two pins of described second end cap, be parallel with second inductance and second bridge rectifier, the output parallel connection LED lamp group of described first bridge rectifier and described second bridge rectifier, described LED lamp group comprises the led light source group and is used for providing the circuit of constant current or constant voltage to described led light source group, between a pin of the input of described LED lamp group and described second end cap, be in series with first electric capacity, between a pin of the output of described LED lamp group and described first end cap, be in series with second electric capacity.

2. LED fluorescent lamp as claimed in claim 1 is characterized in that,

The input of described first electric capacity and with pin that described input links to each other between series connection the 3rd inductance;

3. LED fluorescent lamp as claimed in claim 1 or 2 is characterized in that,

After described first inductance, before described first bridge rectifier, also be parallel with the circuit that forms by the 3rd electric capacity and the series connection of first resistance between two pins of described first end cap;

4. LED fluorescent lamp as claimed in claim 1 or 2 is characterized in that,

The output of described first inductance and with pin that described output links to each other between series connection the 5th electric capacity;

5. LED fluorescent lamp as claimed in claim 3 is characterized in that,

The output of described first inductance and with pin that described output links to each other between series connection one to make the described first inductance original state be first switch element of off-state;

The output of described second inductance and with pin that described output links to each other between series connection one to make the described second inductance original state be the second switch element of off-state.

6. LED fluorescent lamp as claimed in claim 5 is characterized in that,

Between described first inductance and described first switch element, also be in series with the 7th electric capacity;

7. LED fluorescent lamp as claimed in claim 5 is characterized in that,

Described first switch element and described second switch element be in controllable silicon, photoelectrical coupler, relay and the transistor any;

8. LED fluorescent lamp as claimed in claim 1 or 2 is characterized in that, described be used for to described led light source group provide the circuit of constant current or constant voltage be resistance, transistor, LED power supply driver any.

9. LED fluorescent lamp as claimed in claim 8, it is characterized in that, when described when being used for providing the circuit of constant current or constant voltage to be the LED power supply driver to described led light source group, before described LED lamp group, the output of described first bridge rectifier also is parallel with the circuit of the 3rd resistance and the 3rd switch element series connection formation.

10. LED fluorescent lamp as claimed in claim 9 is characterized in that, described the 3rd switch element comprises in starter, controllable silicon, triode, relay, the Zener diode any.

11. LED fluorescent lamp as claimed in claim 1 or 2 is characterized in that, at the two ends of described LED lamp group, the output of described first bridge rectifier is parallel with first filter capacitor, and the output of described second bridge rectifier is parallel with second filter capacitor.

12. fluorescent lamps connected connection circuit, comprise Inductive ballast and starter base in the fluorescent lamp circuit, it is characterized in that, also comprise as claim 1-4, each described LED fluorescent lamp among the 8-11, the input of described Inductive ballast is connected an end that exchanges input, the pin that does not connect described second inductance on first end cap of described fluorescent lamp is connected the other end that exchanges input, the pin that connects described second inductance on described first end cap is connected an end of described starter base, the pin that connects described first inductance on second end cap of described fluorescent lamp is connected the output of described Inductive ballast, the pin that does not connect described first inductance on described second end cap is connected the other end of described starter base, on the described starter base starter is not installed.

13. fluorescent lamps connected connection circuit, comprise Inductive ballast and starter base in the fluorescent lamp circuit, it is characterized in that, also comprise as each described LED fluorescent lamp among the claim 5-7, the input of described Inductive ballast is connected an end that exchanges input, the pin that does not connect described second inductance on first end cap of described fluorescent lamp is connected the other end that exchanges input, the pin that connects described second inductance on described first end cap is connected an end of described starter base, the pin that connects described first inductance on second end cap of described fluorescent lamp is connected the output of described Inductive ballast, the pin that does not connect described first inductance on described second end cap is connected the other end of described starter base, and described starter base is equipped with starter.

14. fluorescent lamps connected connection circuit, comprise the electric ballast in the fluorescent lamp circuit, it is characterized in that, also comprise as each described LED fluorescent lamp among the claim 1-11, the input of described electric ballast is connected the two ends that exchange input, two pins on first end cap of described fluorescent lamp is connected to two outputs of described electric ballast, and the two pins on second end cap of described fluorescent lamp is connected to two other output of described electric ballast.

15. fluorescent lamps connected connection circuit, comprise the electric ballast in the fluorescent lamp circuit, it is characterized in that, also comprise as each described LED fluorescent lamp among the claim 1-11, two inputs of described electric ballast are connected to the two ends that exchange input, two pins on first end cap of described fluorescent lamp is connected first output of described electron rectifier simultaneously, and the two pins on second end cap of described fluorescent lamp is connected second output of described electron rectifier at the same time.