CN102155644B - LED (light emitting diode) fluorescent lamp and fluorescent lamp connecting circuit - Google Patents
LED (light emitting diode) fluorescent lamp and fluorescent lamp connecting circuit Download PDFInfo
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- CN102155644B CN102155644B CN201010579181XA CN201010579181A CN102155644B CN 102155644 B CN102155644 B CN 102155644B CN 201010579181X A CN201010579181X A CN 201010579181XA CN 201010579181 A CN201010579181 A CN 201010579181A CN 102155644 B CN102155644 B CN 102155644B
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Abstract
The embodiment of the invention discloses an LED (light emitting diode) fluorescent lamp and a fluorescent lamp connecting circuit. The LED fluorescent lamp comprises an LED fluorescent lamp tube, wherein the LED fluorescent lamp tube comprises a first end cover and a second end cover; the first end cover and the second end cover respectively comprise two pins; in the LED fluorescent lamp tube, a first inductor and a first bridge rectifier are connected between the two pins of the first end cover in parallel; a second inductor and a second bridge rectifier are connected between the two pins of the second end cover in parallel; the direct current output ends of the first bridge rectifier and the second bridge rectifier are connected with an LED lamp bank in parallel; and the LED lamp bank comprises an LED light source group and a circuit for providing constant current or voltage to the LED light source group. The LED fluorescent lamp can be directly used to replace the fluorescent lamp under the condition of not changing the peripheral circuit of the traditional fluorescent lamp.
Description
Technical field
The present invention relates to the LED field, relate 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 and shown in Figure 2 be the circuit diagram of at present common two kinds of 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 from an end of Inductive ballast and an end of fluorescent lamp simultaneously.As shown in Figure 2, second kind of common fluorescent lamp circuit is with the Inductive ballast in first kind of mode of electric ballast replacement.
Aspect light efficiency, fluorescent lamp is superior to 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 design with LED be the basis fluorescent lamp to replace traditional straight tube fluorescent lamp or circline.
At present, common LED fluorescent tube comprises following several kinds:
Fig. 3 and shown in Figure 4 be a kind of LED fluorescent lamp and the circuit diagram thereof that the most generally uses at present; Like Fig. 3 and shown in Figure 4; 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 gets into from the two ends of fluorescent tube, and 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. 3 and fluorescent tube shown in Figure 4, Fig. 5 and fluorescent tube shown in Figure 6 have been designed at present.Like Fig. 5 and shown in Figure 6, in this prior art, comprise power supply driver and two LED lamp strings of two led light sources in the fluorescent tube inside of LED fluorescent lamp, the independent two ends input from fluorescent lamp of civil power is respectively to two LED fluorescent lamps statements based on collusion.Though can solve potential safety hazard like this, increase the cost of making fluorescent tube.
In addition, for overcoming the defective of Fig. 3 and fluorescent tube shown in Figure 4, Fig. 7 and fluorescent tube shown in Figure 8 have also been designed at present.Like Fig. 7 and shown in Figure 8, the civil power of this prior art is only imported from an end of LED fluorescent tube, and the other end is vacant.
In addition, Fig. 9 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 traditional fluorescent lamp peripheral circuit illustrated in figures 1 and 2 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 change the structure of said fluorescent lamp peripheral circuit.
Because fluorescent lamp uses in life in a large number; Special support, lamp panel and the peripheral circuit that is fluorescent lamp designed 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.
Summary of the invention
Embodiment of the invention 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 embodiment of the invention provides a kind of LED fluorescent lamp; It comprises the LED fluorescent tube; Said LED fluorescent tube comprises first end cap and second end cap; Said first end cap and said second end cap comprise two pins respectively; Inner at said LED fluorescent tube; Be parallel with second inductance and second bridge rectifier being parallel with between two pins of said first end cap between first inductance and first bridge rectifier and two pins at said second end cap, the dc output end parallel connection LED lamp group of said first bridge rectifier and said second bridge rectifier, said LED lamp group comprise led light source group and the circuit that is used for providing constant current or constant voltage to said led light source group.
Preferable, after said first inductance, before said first bridge rectifier, also be parallel with the circuit that forms by first electric capacity and the series connection of first resistance between two pins of said first end cap;
After said second inductance, before said second bridge rectifier, also be parallel with the circuit that forms by second electric capacity and second capacitances in series between two pins of said second end cap.
Perhaps, the output of said first inductance and with pin that said output links to each other between series connection the 3rd electric capacity;
The output of said second inductance and with pin that said output links to each other between series connection the 4th electric capacity.
In addition; The embodiment of the invention also provides a kind of fluorescent lamps connected connection circuit, comprises Inductive ballast and starter base in the fluorescent lamp circuit, also comprises in the aforesaid LED fluorescent lamp any; The input of said Inductive ballast is connected an end that exchanges input; Pin on first end cap of said fluorescent lamp is connected the other end that exchanges input, and another pin of said first end cap is connected an end of said starter base, and the pin on second end cap of said fluorescent lamp is connected the output of said Inductive ballast; Another pin of said second end cap is connected the other end of said starter base, on the said starter base starter is not installed.Preferable, LED fluorescent lamp of the present invention after said first inductance, before said first bridge rectifier, also is parallel with the circuit that is formed by first electric capacity and the series connection of first resistance between two pins of said first end cap; After said second inductance, before said second bridge rectifier, when also being parallel with the circuit that forms by second electric capacity and second capacitances in series between two pins of said second end cap,
The output of said first inductance and with pin that said output links to each other between series connection one to make the said first inductance original state be first switch element of off-state;
The output of said second inductance and with pin that said output links to each other between series connection one to make the said second inductance original state be the second switch element of off-state.
Preferable, LED fluorescent lamp of the present invention also is in series with the 5th electric capacity between said first inductance and said first switch element; Said second inductance and said and also be in series with the 6th electric capacity between the switch element.
Preferable; Said first switch element and said second switch element be in controllable silicon, photoelectrical coupler, relay and the transistor any; When said first switch element was controllable silicon, said silicon controlled trigger end was connected on the connecting line between said first electric capacity and said first resistance; When said second switch element was controllable silicon, said silicon controlled trigger end was connected on the connecting line between said second electric capacity and said second resistance.
Preferable, said be used for to said led light source group provide the circuit of constant current or constant voltage be resistance, transistor any.
It is perhaps, said that to be used for the circuit of constant current or constant voltage to said led light source group being provided be the LED power supply driver.
Preferable; When said when being used for providing the circuit of constant current or constant voltage to be the LED power supply driver to said led light source group; At the front end of said LED lamp group, described dc output end also is parallel with the circuit of the 3rd resistance and the 3rd switch element series connection formation.
Preferable, said the 3rd switch element comprises in starter, controllable silicon, triode, relay, the Zener diode any.
Preferable, LED fluorescent lamp of the present invention is before said LED lamp group, and the dc output end of said first bridge rectifier also is parallel with first filter capacitor, and the dc output end of said second bridge rectifier also is parallel with second filter capacitor.
In addition; The embodiment of the invention also provides another kind of fluorescent lamps connected connection circuit, comprises Inductive ballast and starter base in the fluorescent lamp circuit, also comprises the LED fluorescent lamp; The input of said Inductive ballast is connected an end that exchanges input; Pin on first end cap of said fluorescent lamp is connected the other end that exchanges input, and another pin of said first end cap is connected an end of said starter base, and the pin on second end cap of said fluorescent lamp is connected the output of said Inductive ballast; Another pin of said second end cap is connected the other end of said starter base; On the said starter base starter is not installed, said LED fluorescent lamp is the aforesaid LED fluorescent lamp that comprises switch element, the perhaps aforesaid LED fluorescent lamp that includes the switch element and second electric capacity.
In addition; The embodiment of the invention 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 embodiment of the invention provides any; The input of said electric ballast is connected the two ends that exchange input, and the two pins on first end cap of said fluorescent lamp is connected to two outputs of said electric ballast, and the two pins on second end cap of said fluorescent lamp is connected to two other output of said electric ballast.
Embodiment of the present invention embodiment has following beneficial effect:
The LED fluorescent lamp that the embodiment of the invention provides on the pin of end cap the parallel connection inductance; After said inductance is 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 better the input characteristics of fluorescent lamp circuit being adjusted, the pin of the end cap of the embodiment of the invention removes shunt inductance, the also parallelly connected circuit that is formed by electric capacity and resistance series connection.In addition, for better the input characteristics of fluorescent lamp circuit being adjusted, the pin of the end cap of the embodiment of the invention electric capacity of on the inductance of parallel connection, connecting.In addition, for better the input characteristics of fluorescent lamp circuit being adjusted, the embodiment of the invention in parallel connection on the circuit base that forms by electric capacity and resistance series connection, also on the inductance of parallel connection, connecting one, to make said inductance original state be the switch element of off-state.In addition; When said when being used for providing the circuit of constant current or constant voltage to be the LED power supply driver to said led light source group; Before said LED lamp group; Dc output end at first bridge rectifier also is parallel with first filter capacitor, and the dc output end of said second bridge rectifier also is parallel with second filter capacitor, and this circuit can further mate the output characteristics of electron rectifier and the input characteristics of LED fluorescent lamp.Above-mentioned various LED fluorescent lamps are installed in the fluorescent lamps connected connection circuit of the embodiment of the invention; 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, can economize on resources greatly like this with the LED fluorescent lamp of the embodiment of the invention, user-friendly.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention 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; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, 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 electric ballast fluorescent lamp circuit;
Fig. 3 is existing a kind of LED fluorescent lamp peripheral circuit connected mode sketch map;
Fig. 4 is the internal circuit configuration sketch map of LED fluorescent lamp shown in Figure 3;
Fig. 5 is existing another kind of LED fluorescent lamp peripheral circuit connected mode sketch map;
Fig. 6 is the internal circuit configuration sketch map of LED fluorescent lamp shown in Figure 5;
Fig. 7 is existing another kind of LED fluorescent lamp peripheral circuit connected mode sketch map;
Fig. 8 is the internal circuit configuration sketch map of LED fluorescent lamp shown in Figure 7;
Fig. 9 is the peripheral circuit connected mode sketch map of existing another kind of LED fluorescent lamp;
Figure 10 is the internal circuit configuration sketch map of first embodiment of LED fluorescent lamp of the present invention;
Figure 11 is that LED daylight lamp circuit shown in Figure 10 is connected to the electrical block diagram in the Inductive ballast fluorescent lamp peripheral circuit;
Figure 12 is that LED daylight lamp circuit shown in Figure 10 is connected to the electrical block diagram in the electric ballast fluorescent lamp peripheral circuit;
Figure 13 is the internal circuit configuration sketch map of second embodiment of LED fluorescent lamp of the present invention;
Figure 14 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;
Figure 15 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;
Figure 16 is the internal circuit configuration sketch map of the 3rd embodiment of LED fluorescent lamp of the present invention;
Figure 17 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;
Figure 18 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;
Figure 19 is the internal circuit configuration sketch map of the 4th embodiment of LED fluorescent lamp of the present invention;
Figure 20 is that LED daylight lamp circuit shown in Figure 19 is connected to the electrical block diagram in the Inductive ballast fluorescent lamp peripheral circuit;
Figure 21 is that LED daylight lamp circuit shown in Figure 19 is connected to the electrical block diagram in the electric ballast fluorescent lamp peripheral circuit;
Figure 22 is the internal circuit configuration sketch map of the 5th embodiment of LED fluorescent lamp of the present invention;
Figure 23 is that LED daylight lamp circuit shown in Figure 22 is connected to the electrical block diagram in the Inductive ballast fluorescent lamp peripheral circuit;
Figure 24 is that LED daylight lamp circuit shown in Figure 22 is connected to the electrical block diagram in the electric ballast fluorescent lamp peripheral circuit;
Figure 25 is the internal circuit configuration sketch map of the 6th embodiment of LED fluorescent lamp of the present invention;
Figure 26 is the internal circuit configuration sketch map of the 7th embodiment of LED fluorescent lamp of the present invention;
Figure 27 is the internal circuit configuration sketch map of the 8th embodiment of LED fluorescent lamp of the present invention;
Figure 28 is the internal circuit configuration sketch map of the 9th embodiment of LED fluorescent lamp of the present invention;
Figure 29 is the internal circuit configuration sketch map of the tenth embodiment of LED fluorescent lamp of the present invention;
Figure 30 is the internal power structural representation of the 11 embodiment of LED fluorescent lamp of the present invention;
Figure 31 is the internal power structural representation of the 12 embodiment of LED fluorescent lamp of the present invention;
Figure 32 is the internal power structural representation of the 13 embodiment of LED fluorescent lamp of the present invention;
Figure 33 is the internal power structural representation of the 14 embodiment of LED fluorescent lamp of the present invention;
Figure 34 is the internal power structural representation of the 15 embodiment of LED fluorescent lamp of the present invention;
Figure 35 is the electrical block diagram that the described LED daylight lamp circuit of Figure 31 directly inserts first embodiment of civil power;
Figure 36 is the electrical block diagram that the described LED daylight lamp circuit of Figure 31 directly inserts second embodiment of civil power;
Figure 37 is the electrical block diagram that the described LED daylight lamp circuit of Figure 31 directly inserts the 3rd embodiment of civil power;
Figure 38 is the electrical block diagram that the described LED daylight lamp circuit of Figure 31 directly inserts the 4th embodiment of civil power.
The specific embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention will be carried out clear, intactly description.
A kind of LED fluorescent lamp provided by the invention; Comprise the LED fluorescent tube; Said LED fluorescent tube comprises first end cap and second end cap, and said first end cap and said second end cap comprise two pins respectively, and is inner at said LED fluorescent tube; Between two pins of said first end cap, be parallel with first inductance and first bridge rectifier; Between two pins of said second end cap, be parallel with second inductance and second bridge rectifier, dc output end parallel connection first filter capacitor of said first bridge rectifier, dc output end parallel connection second filter capacitor of said second bridge rectifier; Said first filter capacitor and the said second filter capacitor two ends parallel connection LED lamp group, said LED lamp group comprise led light source group and the circuit that is used for providing constant current or constant voltage to said led light source group.Provide the circuit of constant current or constant voltage to can be in resistance, transistor and the LED power supply driver any described in concrete the realization.In concrete the realization; 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 shown in figure 10; 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 like Figure 25 and shown in Figure 26.
Shown in figure 10; The internal circuit of LED fluorescent lamp of the present invention can comprise pin 1, pin 2, pin 3 and pin 4; In concrete the realization, said pin 1 can be positioned on first end cap of LED fluorescent lamp with pin 2, and said pin 3 can be positioned on second end cap of LED fluorescent lamp with pin 4.The shunt inductance L1 and first bridge rectifier formed by Q1-Q4 between pin 1 and pin 2; Between the both positive and negative polarity of the dc output end of first bridge rectifier of forming by Q1-Q4, connect a filter capacitor C1 (in concrete the realization; Can not comprise filter capacitor C1); Second bridge rectifier that between pin 3 and pin 4, is parallel with inductance L 2 and forms by Q5-Q8; Between the both positive and negative polarity of the dc output end of second bridge rectifier of forming by Q5-Q8, connect a filter capacitor C2 (in concrete the realization; Can not comprise filter capacitor C2), can know that by Figure 10 inductance, bridge rectifier, filter capacitor between the inductance between pin 1 and the pin 2, bridge rectifier, filter capacitor and pin 3 and the pin 4 are symmetrical structure.Further, 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 said filter capacitor C1 and filter capacitor C2.Provide the circuit T1 of constant current or constant voltage to can be in resistance, the transistor any in concrete the realization.
Figure 11 is that LED daylight lamp circuit shown in Figure 10 is connected to the electrical block diagram in the Inductive ballast fluorescent lamp peripheral circuit shown in Figure 1.Simultaneously, Figure 11 also is the structural representation of first embodiment of fluorescent lamps connected connection circuit of the present invention.Shown in figure 11; When LED daylight lamp circuit shown in Figure 10 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 said Inductive ballast; The pin 2 and the pin 4 of LED daylight lamp circuit are connected on the starter base Y in the fluorescent lamp peripheral circuit, and be shown in figure 11, on the said starter base Y starter is not installed.Can know by Figure 11, when receiving in the fluorescent lamp peripheral circuit, not change the circuit structure of former fluorescent lamp peripheral circuit with LED shown in Figure 10 is fluorescent lamps connected.
Concrete, after exchanging AC input access civil power, 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; Because pin 1 and pin 2, and between pin 3 and the pin 4 respectively parallel connection inductance L 1 and L2, therefore under the effect of Inductive ballast fluorescent lamp circuit civil power low frequency (being generally 50-60HZ); The induction reactance of L1 and L2 is very little, and pin 1, pin 2, pin 3 and pin 4 can be thought short-circuit condition respectively.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 converts Rectified alternating current into; Shown in figure 11, the positive pole of said Rectified alternating current is last, and negative pole is following; After the filtering of Rectified alternating current through filter capacitor C1 and filter capacitor C2; Change comparatively level and smooth dc high-voltage 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 LED lamp voltage that do not have a lamp tube ends is higher than the starting voltage of starter, makes the LED lamp produce the defective of flicker.
Figure 12 is that LED daylight lamp circuit shown in Figure 10 is connected to the electrical block diagram in the electric ballast fluorescent lamp peripheral circuit.Simultaneously, Figure 12 has also formed the structural representation of second embodiment of fluorescent lamps connected connection circuit of the present invention.In traditional fluorescent lamp circuit; Electric ballast is used to start fluorescent tube; It can realize that traditional Inductive ballast provides preheat curent, starts the effect that fluorescent tube, stabling current are lighted in high-voltage breakdown to Filament of fluorescent lamp under the condition of low-power consumption, high power factor.It operates mainly in the high frequency state about 40KHZ.Concrete; Shown in figure 12, when the LED daylight lamp circuit among Figure 10 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 to the output of electric ballast; The input of electric ballast is connected to and exchanges the AC input; In concrete the realization, when exchanging AC input incoming transport electricity, the inductance L 1 of present embodiment and L2 respectively equivalent simulation the effect of filament of former fluorescent lamp.The course of work according to electric ballast can be known; It at first need provide a preheat curent to filament, start high pressure then triggers the conducting of LDE lamp; And in the present embodiment, inductance L 1 and inductance L 2 will influence the output characteristics of electric ballast, and be concrete; Inductance L 1 can be regulated the high frequency voltage of electric ballast output with inductance L 2; So that the circuit parameter between input pin 1, pin 2, pin 3 and the pin 4 matees with the parameter of lighting the LED fluorescent lamp fully, when not changing primary electron ballast fluorescent lamp circuit, normally the LED lamp is lighted to be implemented in.
Shown in figure 25, it is with the circuit T1 that constant current or constant voltage are provided (omitting filter capacitor C1 and filter capacitor C2 among Figure 25) shown in power supply driver replacement Figure 10.In concrete the realization; When adopting daylight lamp circuit shown in Figure 25; Its mode that inserts the mode of Inductive ballast fluorescent lamp circuit shown in Figure 1 and insert electric ballast fluorescent lamp circuit shown in Figure 2 and Figure 11 and connecting circuit shown in Figure 12 are identical, do not give unnecessary details at this.
In addition, shown in figure 26, can also on the basis of daylight lamp circuit shown in Figure 25, increase the series circuit that forms by resistance R x and starter S1.Concrete, shown in figure 26, before said LED lamp group, the dc output end of first bridge rectifier that Q1-Q4 forms also is parallel with the circuit of resistance R x and starter S1 series connection formation.In addition, after employing daylight lamp circuit shown in Figure 26 inserted the electric ballast fluorescent lamp circuit with mode shown in Figure 12, the output of electron rectifier was 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 is short-circuited; On resistance R x, having electric current flows through; This electric current can feed back to the input of electric ballast, makes electron rectifier change output characteristics, thus the input characteristics of coupling LED fluorescent lamp.In concrete the realization; 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, insert in the electric ballast fluorescent lamp circuit, between the both positive and negative polarity of the dc output end of bridge rectifier, can produce certain voltage as long as these switch elements can satisfy when the LED daylight lamp circuit; After this voltage can make these switch elements moments be switched on, produce current flowing resistance Rx and get final product.
Another kind of LED fluorescent lamp provided by the invention; Comprise the LED fluorescent tube; Said LED fluorescent tube comprises first end cap and second end cap; Said first end cap and said second end cap comprise two pins respectively; Inner at said LED fluorescent tube, between two pins of said first end cap, be parallel with first inductance, by the circuit and first bridge rectifier that first electric capacity and the series connection of first resistance form, the circuit and second bridge rectifier that between two pins of said second end cap, are parallel with second inductance, connect and form by second electric capacity and second resistance; The dc output end parallel connection LED lamp group of said first bridge rectifier and said second bridge rectifier, said LED lamp group comprise led light source group and the circuit that is used for providing constant current or constant voltage to said led light source group.Provide the circuit of constant current or constant voltage to can be in resistance, transistor and the LED power supply driver any in concrete the realization.In concrete the realization; 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 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 like Figure 27 and shown in Figure 28.
Shown in figure 13, the internal circuit of LED fluorescent lamp of the present invention can be on the basis of circuit shown in Figure 10, and after inductance L 1, before the bridge rectifier that Q1-Q4 forms, parallel connection is by capacitor C 3 circuit that 3 series connection form with resistance R; After inductance L 2, before the bridge rectifier that Q5-Q8 forms, parallel connection is by capacitor C 4 circuit that 4 series connection form with resistance R.The circuit shown in Figure 13 and the function of circuit shown in Figure 10 are basic identical, and it still can directly be linked in traditional Inductive ballast fluorescent lamp circuit shown in Figure 1 conventional electronic ballast fluorescent lamp circuit perhaps shown in Figure 2.After effective cooperation of present embodiment through inductance L 1, capacitor C 3, resistance R 3, inductance L 2, capacitor C 4 and resistance R 4; Inductive ballast or the output characteristics of electric ballast and the input characteristics of LED fluorescent lamp in the conventional fluorescent circuit for lamp are mated more; Improve the illumination effect of LED fluorescent lamp, strengthen the stability of entire circuit.
Figure 14 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.Simultaneously, Figure 14 also is the structural representation of the 3rd embodiment of fluorescent lamps connected connection circuit of the present invention.Shown in figure 14; When being connected to LED daylight lamp circuit shown in Figure 13 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 said Inductive ballast; The pin 2 and the pin 4 of LED daylight lamp circuit are connected on the starter base Y in the fluorescent lamp peripheral circuit, and be shown in figure 14, do not connect starter on the said starter base Y.Can know by Figure 14, when receiving in the fluorescent lamp peripheral circuit, not change the circuit structure of former fluorescent lamp peripheral circuit with LED shown in Figure 13 is fluorescent lamps connected.
Concrete, after exchanging AC input access civil power, 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; Because pin 1 and pin 2, and between pin 3 and the pin 4 respectively parallel connection inductance L 1 and L2, therefore under the effect of Inductive ballast fluorescent lamp circuit civil power low frequency (being generally 50-60HZ); The induction reactance of L1 and L2 is very little; Pin 1, pin 2, pin 3 and pin 4 can be thought short-circuit condition respectively, and capacitor C 3 shows very big capacitive reactance with 4 pairs of low frequency civil powers of capacitor C, and the circuit that can regard capacitor C 3 and resistance R 3 compositions as is open circuit; And the circuit of capacitor C 4 and resistance R 4 compositions is open circuit; 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 converts Rectified alternating current into; Shown in figure 14, the positive pole of said Rectified alternating current is last, and negative pole is following; After the filtering of Rectified alternating current through filter capacitor C1 and filter capacitor C2; Change comparatively level and smooth dc high-voltage 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 LED lamp voltage that do not have a lamp tube ends is higher than the starting voltage of starter, makes the LED lamp produce the defective of flicker.
Figure 15 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.Simultaneously, Figure 15 has also formed the structural representation of the 4th embodiment of fluorescent lamps connected connection circuit of the present invention.Shown in figure 15; When the LED daylight lamp circuit among Figure 13 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 to the output of electric ballast; The input of electric ballast is connected to and exchanges the AC input, in concrete the realization, when exchanging AC input incoming transport electricity; The inductance L 1 of present embodiment, inductance L 2, capacitor C 3, resistance R 3, capacitor C 4, resistance R 4 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 matees with the parameter of lighting the LED fluorescent lamp fully, when not changing primary electron ballast fluorescent lamp circuit, normally the LED lamp is lighted to be implemented in.
Shown in figure 27, it is with the circuit T1 that constant current or constant voltage are provided (omitting filter capacitor C1 and filter capacitor C2 among Figure 27) shown in power supply driver replacement Figure 13.In concrete the realization; When adopting daylight lamp circuit shown in Figure 27; Its mode that inserts the mode of Inductive ballast fluorescent lamp circuit shown in Figure 1 and insert electric ballast fluorescent lamp circuit shown in Figure 2 and Figure 14 and connecting circuit shown in Figure 15 are identical, do not give unnecessary details at this.
In addition, shown in figure 28, can also on the basis of daylight lamp circuit shown in Figure 27, increase the series circuit that forms by resistance R x and starter S1.The effect of Rx among Figure 28 and starter S1 with and alternative elements and Figure 26 similar, do not give unnecessary details at this.
Another kind of LED fluorescent lamp provided by the invention; Comprise the LED fluorescent tube; Said LED fluorescent tube comprises first end cap and second end cap; Said first end cap and said second end cap comprise two pins respectively; Inner at said LED fluorescent tube, between two pins of said first end cap, be parallel with the circuit of first inductance and the 3rd capacitances in series formation and be parallel with first bridge rectifier, between two pins of said second end cap, be parallel with the circuit of second inductance and the 4th capacitances in series formation and be parallel with second bridge rectifier; Connect first filter capacitor between the dc output end of said first bridge rectifier; Connect second filter capacitor between the dc output end of said second bridge rectifier, the two ends of said first filter capacitor and said second filter capacitor are connected LED lamp group, and said LED lamp group comprises led light source group and the circuit that is used for providing constant current or constant voltage to said led light source group.In concrete the realization; 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 shown in figure 16; 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 like Figure 29 and shown in Figure 30.
Shown in figure 16, the internal circuit of LED fluorescent lamp of the present invention can be on the basis of circuit shown in Figure 10, the capacitor C 5 of between inductance L 1 and pin 2, connecting, the capacitor C 6 of between inductance L 2 and pin 4, connecting.The function that circuit shown in Figure 16 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 conventional electronic ballast fluorescent lamp circuit perhaps shown in Figure 2.After effective cooperation of present embodiment through inductance L 1, capacitor C 5, inductance L 2 and capacitor C 6; Inductive ballast or the output characteristics of electric ballast and the input characteristics of LED fluorescent lamp in the conventional fluorescent circuit for lamp are mated more; Improve the illumination effect of LED fluorescent lamp, strengthen the stability of entire circuit.
Figure 17 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.Simultaneously, Figure 17 also is the structural representation of the 5th embodiment of fluorescent lamps connected connection circuit of the present invention.Shown in figure 17; When being connected to LED daylight lamp circuit shown in Figure 16 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 said Inductive ballast; The pin 2 and the pin 4 of LED daylight lamp circuit are connected on the starter base Y in the fluorescent lamp peripheral circuit, and be shown in figure 17, do not connect starter on the said starter base Y.Can know by Figure 17, when receiving in the fluorescent lamp peripheral circuit, not change the circuit structure of former fluorescent lamp peripheral circuit with LED shown in Figure 16 is fluorescent lamps connected.
Concrete, in Figure 17, after exchanging AC input access civil power; Under the effect of Inductive ballast fluorescent lamp circuit civil power low frequency (being generally 50-60HZ), the induction reactance of L1 and L2 is very little, and pin 1, pin 2, pin 3 and pin 4 can be thought short-circuit condition respectively; And capacitor C 5 shows very big capacitive reactance with 6 pairs of low frequency civil powers of capacitor C, and the circuit that can regard L1 and C5 composition as is open circuit, and the circuit of L2 and C6 composition is for opening a way; After two groups of bridge rectifiers of the alternating current of input through the Q1-Q8 composition, alternating current converts Rectified alternating current into, and is shown in figure 17 like this; The positive pole of said Rectified alternating current is last; Negative pole after the filtering of Rectified alternating current through filter capacitor C1 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 LED lamp voltage that do not have a lamp tube ends is higher than the starting voltage of starter, makes the LED lamp produce the defective of flicker.
Figure 18 LED daylight lamp circuit shown in Figure 16 is connected to the electrical block diagram in the electric ballast fluorescent lamp peripheral circuit.Simultaneously, Figure 18 has also formed the structural representation of the 6th embodiment of fluorescent lamps connected connection circuit of the present invention.Shown in figure 18; When the LED daylight lamp circuit among Figure 16 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 to the output of electric ballast; The input of electric ballast is connected to and exchanges the AC input, in concrete the realization, when exchanging AC input incoming transport electricity; The inductance L 1 of present embodiment, capacitor C 5, inductance L 2 and capacitor C 6 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 matees with the parameter of lighting the LED fluorescent lamp fully, when not changing primary electron ballast fluorescent lamp circuit, normally the LED lamp is lighted to be implemented in.
Shown in figure 29, it is with the circuit T1 that constant current or constant voltage are provided shown in power supply driver replacement Figure 16.In concrete the realization; When adopting daylight lamp circuit shown in Figure 29; Its mode that inserts the mode of Inductive ballast fluorescent lamp circuit shown in Figure 1 and insert electric ballast fluorescent lamp circuit shown in Figure 2 and Figure 17 and connecting circuit shown in Figure 180 are identical, do not give unnecessary details at this.
In addition, shown in figure 30, can also on the basis of daylight lamp circuit shown in Figure 29, increase the series circuit that forms by resistance R x and starter S1.Concrete, remove filter capacitor C1 and filter capacitor C2 among Figure 29 among Figure 30.The effect of Rx among Figure 30 and starter S1 with and alternative elements and Figure 26 similar, do not give unnecessary details at this.
Another kind of LED fluorescent lamp provided by the invention; Comprise the LED fluorescent tube; Said LED fluorescent tube comprises first end cap and second end cap; Said first end cap and said second end cap comprise two pins respectively; Inner at said LED fluorescent tube; Between two pins of said first end cap, be parallel with the circuit and first bridge rectifier of circuit, first electric capacity and first resistance series connection formation of first inductance and first switch element series connection formation; Between two pins of said second end cap, be parallel with the circuit and second bridge rectifier of circuit, second electric capacity and second resistance series connection formation of the formation of second inductance and second switch element connected in series, connect first filter capacitor between the both positive and negative polarity of the dc output end of said first bridge rectifier, connect second filter capacitor between the both positive and negative polarity of the dc output end of said second bridge rectifier; The two ends of said first filter capacitor and said second filter capacitor are connected LED lamp group, and said LED lamp group comprises led light source group and the circuit that is used for providing constant current or constant voltage to said led light source group.In concrete the realization, said first switch element and second switch element can be in controllable silicon, photoelectrical coupler, relay and the transistor any.When said first switch element was controllable silicon, said silicon controlled trigger end was connected on the connecting line between said first electric capacity and said first resistance; When said second switch element was controllable silicon, said silicon controlled trigger end was connected on the connecting line between said second electric capacity and said second resistance.In concrete the realization; 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 shown in figure 19; 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 like Figure 31 and shown in Figure 32.
Shown in figure 19; The internal circuit of LED fluorescent lamp of the present invention can be on the basis of circuit shown in Figure 13; A controllable silicon T2 connects between inductance L 1 and pin 2; The trigger end G of said controllable silicon T2 is connected between capacitor C 3 and the resistance R 3, the controllable silicon T3 that between inductance L 2 and pin 4, connects, and the trigger end G of said silicon controlled T3 is connected between capacitor C 4 and the resistance R 4.The function that circuit shown in Figure 19 and circuit shown in Figure 10 are realized is basic identical; It still can directly be linked in traditional Inductive ballast fluorescent lamp circuit shown in Figure 1 conventional electronic ballast fluorescent lamp circuit perhaps shown in Figure 2; And when the LED fluorescent lamp that adopts present embodiment inserted the Inductive ballast fluorescent lamp circuit, the starter on the said Inductive ballast fluorescent lamp circuit can keep.After effective cooperation of present embodiment through inductance L 1, capacitor C 3, resistance R 3, inductance L 2, capacitor C 4, resistance R 4, controllable silicon T2, controllable silicon T3; Inductive ballast or the output characteristics of electric ballast and the input characteristics of LED fluorescent lamp in the conventional fluorescent circuit for lamp are mated more; Improve the illumination effect of LED fluorescent lamp, strengthen the stability of entire circuit.
Figure 20 is that LED daylight lamp circuit shown in Figure 19 is connected to the electrical block diagram in the Inductive ballast fluorescent lamp peripheral circuit.Simultaneously, Figure 20 also is the structural representation of the 7th embodiment of fluorescent lamps connected connection circuit of the present invention.Shown in figure 20; When being connected to LED daylight lamp circuit shown in Figure 19 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 said Inductive ballast; The pin 2 and the pin 4 of LED daylight lamp circuit are connected on the starter base Y in the fluorescent lamp peripheral circuit, and be shown in figure 20, on the said starter base Y starter S is installed.Can know by Figure 20, when receiving in the fluorescent lamp peripheral circuit, not change the circuit structure of former fluorescent lamp peripheral circuit with LED shown in Figure 19 is fluorescent lamps connected.
Concrete, like Figure 20, after alternating current AC input inserts civil power; 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, and capacitor C 3 can produce very big capacitive reactance (in concrete the realization, can realizing through the capacitance of adjustment capacitor C 3 and capacitor C 4) to low frequency (50-60HZ) civil power with capacitor C 4 in the present embodiment; The voltage drop that on resistance R 3 and resistance R 4, produces like this is very little, 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 through pin 2 and pin 4, and be therefore shown in figure 20, 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 receiving starter to influence and produce flicker.
Figure 21 is that LED daylight lamp circuit shown in Figure 19 is connected to the electrical block diagram in the electric ballast fluorescent lamp peripheral circuit.Simultaneously, Figure 21 has also formed the structural representation of the 8th embodiment of fluorescent lamps connected connection circuit of the present invention.Shown in figure 21; When the LED daylight lamp circuit among Figure 19 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 to the output of electric ballast, and the input of electric ballast is connected to and exchanges the AC input.
In concrete the realization; When exchanging AC input incoming transport electricity; Through exporting high-frequency alternating current (about 40KHZ) after the electric ballast; This high-frequency alternating current is imported respectively from pin 1, pin 2, pin 3 and pin 4, and the capacitive reactance of the high-frequency alternating current of capacitor C 3 and 4 pairs of inputs of capacitor C will diminish.Can know that according to electrician's knowledge when capacitance one timing, incoming frequency is high more; The capacitive reactance that electric capacity produces is more little, therefore, and in the present embodiment; Under the effect of high-frequency alternating current, capacitor C 3 shows less capacitive reactance with capacitor C 4, and therefore bigger electric current flow through resistance R 3 and resistance R 4 can be arranged.Present embodiment can pass through the capacity of appropriate design capacitor C 3, capacitor C 4 and the resistance of appropriate design resistance R 3 and resistance R 4, makes it under the situation that receives the high-frequency alternating current input, and controllable silicon T2 and controllable silicon T3 are become conducting state by off-state.And present embodiment is when controllable silicon T2 and controllable silicon T3 conducting, and this embodiment promptly is equivalent to the circuit of second embodiment shown in Figure 13.
Shown in figure 31, it is with the circuit T1 that constant current or constant voltage are provided shown in power supply driver replacement Figure 19.In concrete the realization; 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 insert electric ballast fluorescent lamp circuit shown in Figure 2 and Figure 20 and connecting circuit shown in Figure 21 are identical, do not give unnecessary details at this.
In addition, shown in Figure 32 (removing filter capacitor C1 and filter capacitor C2 among Figure 31 among Figure 32), can also on the basis of daylight lamp circuit shown in Figure 31, increase the series circuit that forms by resistance R x and starter S1.The effect of Rx among Figure 32 and starter S1 with and alternative elements and Figure 26 similar, do not give unnecessary details at this.
Another kind of LED fluorescent lamp provided by the invention; Comprise the LED fluorescent tube; Said LED fluorescent tube comprises first end cap and second end cap; Said first end cap and said second end cap comprise two pins respectively; Inner at said LED fluorescent tube; Between two pins of said first end cap, be parallel with the circuit and first bridge rectifier of circuit, first electric capacity and first resistance series connection formation of the formation of first inductance and first switch element and the 5th capacitances in series; Between two pins of said second end cap, be parallel with the circuit and second bridge rectifier of circuit, second electric capacity and second resistance series connection formation of the formation of second inductance and second switch element and the 6th capacitances in series, connect first filter capacitor between the both positive and negative polarity of the dc output end of said first bridge rectifier, connect second filter capacitor between the both positive and negative polarity of the dc output end of said second bridge rectifier; The two ends of said first filter capacitor and said second filter capacitor are connected LED lamp group, and said LED lamp group comprises led light source group and the circuit that is used for providing constant current or constant voltage to said led light source group.In concrete the realization, said first switch element and second switch element can be in controllable silicon, photoelectrical coupler, relay and the transistor any.When said first switch element was controllable silicon, said silicon controlled trigger end was connected on the connecting line between said first electric capacity and said first resistance; When said second switch element was controllable silicon, said silicon controlled trigger end was connected on the connecting line between said second electric capacity and said second resistance.In concrete the realization; 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 shown in figure 22; 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 like Figure 33 and shown in Figure 34.
Like Figure 22, the internal circuit of LED fluorescent lamp of the present invention can be on the basis of circuit shown in Figure 19, 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 circuit shown in Figure 22 and circuit shown in Figure 10 are realized is basic identical; It still can directly be linked in traditional Inductive ballast fluorescent lamp circuit or the conventional electronic ballast fluorescent lamp circuit; And when the LED fluorescent lamp that adopts present embodiment inserted the Inductive ballast fluorescent lamp circuit, the starter on the said Inductive ballast fluorescent lamp circuit can keep.
Figure 23 is that LED daylight lamp circuit shown in Figure 22 is connected to the electrical block diagram in the Inductive ballast fluorescent lamp peripheral circuit.Simultaneously, Figure 20 also is the structural representation of the 9th embodiment of fluorescent lamps connected connection circuit of the present invention.Shown in figure 23; When being connected to LED daylight lamp circuit shown in Figure 22 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 said Inductive ballast; The pin 2 and the pin 4 of LED daylight lamp circuit are connected on the starter base Y in the fluorescent lamp peripheral circuit, and be shown in figure 23, on the said starter base Y starter S is installed.Can know by Figure 23, when receiving in the fluorescent lamp peripheral circuit, not change the circuit structure of former fluorescent lamp peripheral circuit with LED shown in Figure 22 is fluorescent lamps connected.8 pairs of low frequency civil powers of capacitor C 7 and capacitor C produce big capacitive reactance among Figure 23, and therefore deficiency is so that T2 and T3 are switched in this circuit, and at this moment, the circuit equivalent of Figure 23 is in circuit shown in Figure 17.
Figure 24 is that LED daylight lamp circuit shown in Figure 22 is connected to the electrical block diagram in the electric ballast fluorescent lamp peripheral circuit.Simultaneously, Figure 24 has also formed the structural representation of the tenth embodiment of fluorescent lamps connected connection circuit of the present invention.Shown in figure 24; When the LED daylight lamp circuit among Figure 22 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 to the output of electric ballast, and the input of electric ballast is connected to and exchanges the AC input.
Shown in figure 33, it is with the circuit T1 that constant current or constant voltage are provided shown in power supply driver replacement Figure 22.In concrete the realization; When adopting daylight lamp circuit shown in Figure 33; Its mode that inserts the mode of Inductive ballast fluorescent lamp circuit shown in Figure 1 and insert electric ballast fluorescent lamp circuit shown in Figure 2 and Figure 23 and connecting circuit shown in Figure 24 are identical, do not give unnecessary details at this.
In addition, shown in Figure 34 (removing filter capacitor C1 and filter capacitor C2 among Figure 33 among Figure 34), can also on the basis of daylight lamp circuit shown in Figure 33, increase the series circuit that forms by resistance R x and starter S1.The effect of Rx among Figure 34 and starter S1 with and alternative elements and Figure 26 similar, do not give unnecessary details at this.
In addition, the LED fluorescent lamp of the embodiment of the invention makes in inserting traditional fluorescent lamp peripheral circuit the LED lamp lighted, and it also can directly insert civil power.Figure 35 promptly is a kind of connecting circuit sketch map that LED fluorescent lamp internal circuit shown in Figure 31 directly inserts civil power.Shown in figure 35, exchange the AC input and insert simultaneously from the two ends of LED fluorescent lamp, wherein the pin 1 of LED fluorescent lamp and pin 2 are connected to an end of AC input simultaneously, and pin 3 and pin 4 are connected to the other end of AC input simultaneously.Figure 36 is the another kind of connecting circuit sketch map that LED fluorescent lamp internal circuit shown in Figure 31 directly inserts civil power.Shown in figure 36, exchange the AC input and insert simultaneously from the two ends of LED fluorescent lamp, wherein the pin 1 of LED fluorescent lamp is vacant with pin 3, and pin 2 and pin 4 are connected respectively to the two ends of AC input.Figure 37 is another connecting circuit sketch map that LED fluorescent lamp internal circuit shown in Figure 31 directly inserts civil power.Shown in figure 37, exchange the AC input and go into from a termination of LED fluorescent lamp, the other end of LED fluorescent lamp is vacant, and is concrete, exchange the AC input and insert from pin 1 and pin 2, and pin 3 is vacant with pin 4.Figure 38 is another connecting circuit sketch map that LED fluorescent lamp internal circuit shown in Figure 31 directly inserts civil power.Shown in figure 38, two groups of two ends accesses that exchange the AC input from the LED fluorescent lamp, wherein one group of AC input inserts from pin 1 and pin 2, and another group AC input is from pin 3 and pin 4 accesses.
Above disclosedly be merely preferred embodiment of the present invention, can not limit the present invention's interest field certainly with this, the equivalent variations of therefore doing according to claim of the present invention still belongs to the scope that the present invention is contained.
Claims (13)
1. LED fluorescent lamp; It is characterized in that; Comprise the LED fluorescent tube; Said LED fluorescent tube comprises first end cap and second end cap; Said first end cap and said second end cap comprise two pins respectively, and be inner at said LED fluorescent tube, is parallel with second inductance and second bridge rectifier being parallel with between two pins of said first end cap between first inductance and first bridge rectifier and two pins at said second end cap; The dc output end parallel connection LED lamp group of said first bridge rectifier and said second bridge rectifier, said LED lamp group comprise led light source group and the circuit that is used for providing constant current or constant voltage to said led light source group.
2. LED fluorescent lamp as claimed in claim 1 is characterized in that,
After said first inductance, before said first bridge rectifier, also be parallel with the circuit that forms by first electric capacity and the series connection of first resistance between two pins of said first end cap;
After said second inductance, before said second bridge rectifier, also be parallel with the circuit that forms by second electric capacity and the series connection of second resistance between two pins of said second end cap.
3. LED fluorescent lamp as claimed in claim 1 is characterized in that,
Be connected with the 3rd electric capacity on the circuit at said first inductance place, said the 3rd electric capacity forms the relation of connecting with said first inductance;
Be connected with the 4th electric capacity on the circuit at said second inductance place, said the 4th electric capacity forms the relation of connecting with said second inductance.
4. LED fluorescent lamp as claimed in claim 2 is characterized in that,
Being connected with one on the circuit at said first inductance place, to make the said first inductance original state be first switch element of off-state, and said first inductance and said first switch element form the relation of series connection;
Being connected with one on the circuit at said second inductance place, to make the said second inductance original state be the second switch element of off-state, and said second inductance and said second switch element form the relation of series connection.
5. LED fluorescent lamp as claimed in claim 4 is characterized in that,
Between said first inductance and said first switch element, also be in series with the 5th electric capacity;
Between said second inductance and said second switch element, also be in series with the 6th electric capacity.
6. LED fluorescent lamp as claimed in claim 4; It is characterized in that; Said first switch element and said second switch element be in controllable silicon, photoelectrical coupler, relay and the transistor any; When said first switch element was controllable silicon, said silicon controlled trigger end was connected on the connecting line between said first electric capacity and said first resistance; When said second switch element was controllable silicon, said silicon controlled trigger end was connected on the connecting line between said second electric capacity and said second resistance.
7. like each described LED fluorescent lamp among the claim 1-6, it is characterized in that, said be used for to said led light source group provide the circuit of constant current or constant voltage be transistor, LED power supply driver any.
8. LED fluorescent lamp as claimed in claim 7; It is characterized in that; When said when being used for providing the circuit of constant current or constant voltage to be the LED power supply driver to said led light source group; At the front end of said LED lamp group, the dc output end of said first bridge rectifier also is parallel with the circuit of the 3rd resistance and the 3rd switch element series connection formation.
9. LED fluorescent lamp as claimed in claim 8 is characterized in that, said the 3rd switch element comprises in starter, controllable silicon, triode, relay, the Zener diode any.
10. like each described LED fluorescent lamp among the claim 1-6; It is characterized in that; Before said LED lamp group, the dc output end of said first bridge rectifier also is parallel with first filter capacitor, and the dc output end of said second bridge rectifier also is parallel with second filter capacitor.
11. fluorescent lamps connected connection circuit; Comprise Inductive ballast and starter base in the fluorescent lamp circuit, it is characterized in that, also comprise like each described LED fluorescent lamp among the claim 1-3; The input of said Inductive ballast is connected an end that exchanges input; Pin on first end cap of said fluorescent lamp is connected the other end that exchanges input, and another pin of said first end cap is connected an end of said starter base, and the pin on second end cap of said fluorescent lamp is connected the output of said Inductive ballast; Another pin of said second end cap is connected the other end of said starter base, on the said starter base starter is not installed.
12. fluorescent lamps connected connection circuit; Comprise Inductive ballast and starter base in the fluorescent lamp circuit, it is characterized in that, also comprise like each described LED fluorescent lamp among the claim 4-6; The input of said Inductive ballast is connected an end that exchanges input; Pin on first end cap of said fluorescent lamp is connected the other end that exchanges input, and another pin of said first end cap is connected an end of said starter base, and the pin on second end cap of said fluorescent lamp is connected the output of said Inductive ballast; Another pin of said second end cap is connected the other end of said starter base, and said starter base is equipped with starter.
13. fluorescent lamps connected connection circuit; Comprise the electric ballast in the fluorescent lamp circuit; It is characterized in that, also comprise that the input of said electric ballast is connected the two ends that exchange input like each described LED fluorescent lamp among the claim 1-6; Two pins on first end cap of said fluorescent lamp is connected to two outputs of said electric ballast, and the two pins on second end cap of said fluorescent lamp is connected to two other output of said electric ballast.
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| US10117295B2 (en) | 2013-01-24 | 2018-10-30 | Cree, Inc. | LED lighting apparatus for use with AC-output lighting ballasts |
| US9871404B2 (en) | 2011-12-12 | 2018-01-16 | Cree, Inc. | Emergency lighting devices with LED strings |
| CN103185323A (en) * | 2011-12-29 | 2013-07-03 | 上海柏宜照明电子有限公司 | Self-ballasted light-emitting diode (LED) lamp tube |
| CN102724790A (en) * | 2012-03-20 | 2012-10-10 | 上海柏宜照明电子有限公司 | Drive power module of self-ballasted LED lighting tube |
| US10045406B2 (en) | 2013-01-24 | 2018-08-07 | Cree, Inc. | Solid-state lighting apparatus for use with fluorescent ballasts |
| US9439249B2 (en) * | 2013-01-24 | 2016-09-06 | Cree, Inc. | LED lighting apparatus for use with AC-output lighting ballasts |
| US10104723B2 (en) | 2013-01-24 | 2018-10-16 | Cree, Inc. | Solid-state lighting apparatus with filament imitation for use with florescent ballasts |
| CN104534332A (en) * | 2015-01-04 | 2015-04-22 | 河南中云创光电科技股份有限公司 | LED fluorescent lamp |
| CN105805584B (en) * | 2016-05-09 | 2022-03-25 | 晨辉光宝科技股份有限公司 | Replacement type LED fluorescent tube |
| CN106413203A (en) * | 2016-11-26 | 2017-02-15 | 方彬辉 | Special-purpose rectification module for electronic rectifier |
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| CN201866595U (en) * | 2010-12-07 | 2011-06-15 | 刘昌贵 | LED (light emitting diode) fluorescent lamp and fluorescent lamp connection circuit |
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