CN203645869U - Compatible LED fluorescent tube circuit - Google Patents
Compatible LED fluorescent tube circuit Download PDFInfo
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- CN203645869U CN203645869U CN201320713294.3U CN201320713294U CN203645869U CN 203645869 U CN203645869 U CN 203645869U CN 201320713294 U CN201320713294 U CN 201320713294U CN 203645869 U CN203645869 U CN 203645869U
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Abstract
The utility model provides a compatible LED fluorescent tube circuit. The compatible LED fluorescent tube circuit comprises two lamp pins which are connected to an LED drive circuit through a rectifier bridge. The LED drive circuit is connected with an LED output circuit. The LED output circuit is provided with an LED output end. The compatible LED fluorescent tube circuit further includes a voltage-dividing capacitor (C13) and a switch, wherein a series branch circuit of the voltage-dividing capacitor (C13) and the switch is connected between the two lamp pins. The beneficial effects of the compatible LED fluorescent tube circuit are that the voltage-dividing capacitor is added and a switching circuit which controls the connection and disconnection of the voltage-dividing circuit, the ON/OFF states of the voltage capacitor are controlled through voltages after rectification and detected and read by a detection circuit, and the distribution of input voltages is changed, and thus compatible requirements of various fluorescent tubes are satisfied.
Description
Technical field
The utility model relates to LED fluorescent tube, is specifically related to compatible type LED tube circuit.
Background technology
Present LED drives the alternating current state (being 100V-240V voltage) that operates mainly in, and LED light fixture replaces original fluorescent lamp as novel energy-conserving illuminating product, directly replace fluorescent lamps tool, must change circuit, extracts original Inductive ballast in florescent lamp fitting.Once if conventional lamp circuit changes, cannot light original fluorescent tube.Cause great manpower waste and user to apply inconvenience.Like product on the market at present, simultaneously compatible with alternating civil power, Inductive ballast one lamp formula, inductance connect two lamp formulas, start two lamp formulas fast.Can compatible inductance connect two lamp formulas, start two lamp formulas fast, just cannot be directly used in electric main, can not be used for Inductive ballast one lamp formula, and compatible inductance connect two lamp formulas, cannot constant current while starting two lamp formulas fast.
Utility model content
For above-mentioned prior art deficiency, the technical problems to be solved in the utility model is to provide connect two lamp formulas and start fast the compatible type LED tube circuit of two lamp formulas of a kind of simultaneously compatible with alternating civil power, Inductive ballast one lamp formula, inductance.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is, compatible type LED tube circuit, comprise two lamp bases, two lamp bases are connected to LED drive circuit by rectifier bridge, and LED drive circuit is connected to LED output circuit, and LED output circuit is provided with LED output; Also comprise dividing potential drop capacitor C 13; This dividing potential drop capacitor C 13 is connected between two lamp bases.Such structure, without significantly changing original tube circuit, can realize the conversion of circuit function.
Particularly, the capacitance of described dividing potential drop capacitor C 13 is 2 μ F to 5 μ F.Such structure meets dividing potential drop needs.
Further, also comprise switch; This switch is connected with described dividing potential drop capacitor C 13, and the series arm of dividing potential drop capacitor C 13 and switch is connected between two lamp bases.Such structure can need to or be disconnected from the circuit from place in circuit according to using dividing potential drop capacitor C 13, meets the use needs of two class fluorescent tubes, realizes compatible.
Further technical scheme is also to comprise testing circuit; Described switch is the switching circuit with control end; The positive output end of rectifier bridge is connected to the input of testing circuit; The output of testing circuit is connected to the control end of switching circuit.
Preferably, described testing circuit comprises trigger, and the input of trigger is connected to the positive output end of rectifier bridge by sample circuit; The output of trigger is the output of testing circuit the control end that is connected to switching circuit.
Preferably, described sample circuit comprises resistance R 3, resistance R 4 and resistance R 5, and one end of resistance R 3 is connected to the positive output end of rectifier bridge, and the other end of resistance R 3 is connected with ground with resistance R 5 by resistance R 4 successively, and the two ends of resistance R 5 are also parallel with capacitor C 3; Resistance R 4 is connected with the node of resistance R 5 and the input of trigger.
Preferably, described switching circuit comprises relay T1 and triode Q1; The switch of relay T1 is connected with dividing potential drop capacitor C 13, and this series arm is connected between two lamp bases; The coil of relay T1 is connected with triode Q1, and this series arm is connected between direct current supply and ground; The base stage of triode Q1 is connected as the control end of switching circuit and the output of testing circuit.
More preferably, described triode Q1 is NPN triode; One end of the coil of relay T1 is connected with direct current supply, and the other end of the coil of relay T1 is connected with the collector electrode of triode Q1; The grounded emitter of triode Q1; The base stage of triode Q1 is connected to the output of testing circuit by resistance R 7, be also connected with resistance R 12 between the base stage of triode Q1 and emitter; The coil two ends of relay T1 are also parallel with capacitor C 4; Direct current supply is also by capacitor C 5 ground connection.
The beneficial effect of compatible type LED tube circuit of the present utility model is: the switching circuit that has increased dividing potential drop electric capacity and control the conducting of dividing potential drop electric capacity or disconnection, detect the break-make of the voltage control dividing potential drop electric capacity reading after rectification by testing circuit, change the distribution of input voltage, thereby meet the compatible demand of multiple fluorescent tube.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model compatible type LED tube circuit.
Embodiment
As shown in Figure 1, compatible type LED tube circuit of the present utility model, comprise two lamp bases (i.e. lamp base L in figure and lamp base N), two lamp bases are connected to LED drive circuit 1 by rectifier bridge 4, LED drive circuit 1 is connected to LED output circuit 2, and LED output circuit 2 is provided with LED output (being LED+ and LED-).Also comprise testing circuit, switching circuit and dividing potential drop capacitor C 13; The positive output end of rectifier bridge 4 is connected to the input of testing circuit; The series arm of dividing potential drop capacitor C 13 and switching circuit is connected between two lamp bases; The output of testing circuit is connected to the control end of switching circuit.
Described testing circuit comprises trigger 31, and the input of trigger 31 is connected to the positive output end of rectifier bridge 4 by sample circuit; Wherein, described sample circuit comprises resistance R 3, resistance R 4 and resistance R 5, and one end of resistance R 3 is connected to the positive output end of rectifier bridge 4, and the other end of resistance R 3 is connected with ground with resistance R 5 by resistance R 4 successively, and the two ends of resistance R 5 are also parallel with capacitor C 3; Resistance R 4 is connected with the input of trigger 31 with the node of resistance R 5.The output of trigger 31 is the output of testing circuit the control end that is connected to switching circuit.
Described switching circuit comprises relay T1 and triode Q1, and described triode Q1 is NPN triode.The switch of relay T1 is connected with dividing potential drop capacitor C 13, and this series arm is connected between two lamp bases; The coil of relay T1 is connected with triode Q1, and this series arm is connected between direct current supply VCC and ground, and particularly, one end of the coil of relay T1 is connected with direct current supply VCC, and the other end of the coil of relay T1 is connected with the collector electrode of triode Q1; The coil two ends of relay T1 are also parallel with capacitor C 4; The grounded emitter of triode Q1; The base stage of triode Q1, as the control end of switching circuit, is connected with the output of testing circuit by resistance R 7, is also connected with resistance R 12 between the base stage of triode Q1 and emitter.Direct current supply VCC is also by capacitor C 5 ground connection.
The course of work: detect voltage after rectification to calculate the ac voltage of access lamp base by testing circuit.When access inductance connect two lamp formulas, start two lamp formulas fast, input AC electricity,, is controlled dividing potential drop capacitor C 13 and is connected in circuit by testing circuit and switching circuit lower than 180V through dividing potential drop, the electric main of the fluorescent tube mean allocation input of two series connection, guarantees that the fluorescent tube of two series connection is normally worked.When incoming transport civil power, when Inductive ballast one lamp formula, input AC electricity is higher than 180V, and the C13 exchanging in bleeder circuit opens from line interruption.Particularly, in the present embodiment, by the parameter setting of sample circuit, the voltage that makes to be input to trigger 31 meets the process range of trigger 31, input AC electricity is during lower than 180V, trigger 31 is exported " 1 ", makes triode Q1 conducting, thus the coil of engage relay T1, what connect with dividing potential drop capacitor C 13 is the normal open switch of relay T1, in the time of coil conducting, normal open switch can be closed, makes in dividing potential drop capacitor C 13 places in circuit; In like manner, when input AC electricity is during higher than 180V, trigger 31 is exported " 0 " disconnects triode Q1, thereby dividing potential drop capacitor C 13 is opened from line interruption.Accordingly, can select the trigger 31 of other types, when alternating current makes trigger 31 export " 0 " during lower than 180V, only need in the time that circuit is made, dividing potential drop capacitor C 13 be connected with the normally closed switch of relay T1; In like manner, also can select the triode (base stage level lower than emitter level time conducting) of positive-negative-positive, also can make trigger 31 export " 0 " time, allow dividing potential drop capacitor C 13 connect.No matter trigger 31 is exported " 1 " in which kind of situation, relay T1 is that normal open switch or normally closed switch are connected with dividing potential drop capacitor C 13,
By combining the connected mode of dissimilar trigger 31, triode and relay T1 switch, draw and make the result in dividing potential drop capacitor C 13 places in circuit at input AC electricity during lower than 180V, be those skilled in the art according to description of the present utility model, can not need to pay creative work attainable.In addition, trigger 31 can adopt other devices that can realize detection such as such as single-chip microcomputer to replace.
2 need of LED drive circuit 1 and LED output circuit meet LED and drive, and can adopt common circuit design to realize, and need have direct current supply VCC provides operating voltage for trigger 31, relay T1 simultaneously; Direct current supply VCC can be also the power supply arranging in addition.
In addition, the form that the utility model can also adopt dividing potential drop capacitor C 13 directly to connect with regular tap, by the break-make of control switch manually, manually realize compatible, but in contrast to above-described embodiment, such mode lacks automatic effects, has the possibility that causes circuit to damage because of the misoperation of switch on and off.Can also directly between two lamp bases, connect dividing potential drop capacitor C 13.The capacitance of dividing potential drop capacitor C 13 is selected 2 μ F to 5 μ F.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (8)
1. compatible type LED tube circuit, comprises two lamp bases, and two lamp bases are connected to LED drive circuit by rectifier bridge, and LED drive circuit is connected to LED output circuit, and LED output circuit is provided with LED output; It is characterized in that: also comprise dividing potential drop capacitor C 13; This dividing potential drop capacitor C 13 is connected between two lamp bases.
2. compatible type LED tube circuit according to claim 1, is characterized in that: the capacitance of described dividing potential drop capacitor C 13 is 2 μ F to 5 μ F.
3. compatible type LED tube circuit according to claim 1, is characterized in that: also comprise switch; This switch is connected with described dividing potential drop capacitor C 13, and the series arm of dividing potential drop capacitor C 13 and switch is connected between two lamp bases.
4. compatible type LED tube circuit according to claim 3, is characterized in that: also comprise testing circuit; Described switch is the switching circuit with control end; The positive output end of rectifier bridge is connected to the input of testing circuit; The output of testing circuit is connected to the control end of switching circuit.
5. compatible type LED tube circuit according to claim 4, is characterized in that: described testing circuit comprises trigger, and the input of trigger is connected to the positive output end of rectifier bridge by sample circuit; The output of trigger is the output of testing circuit the control end that is connected to switching circuit.
6. compatible type LED tube circuit according to claim 5, it is characterized in that: described sample circuit comprises resistance R 3, resistance R 4 and resistance R 5, one end of resistance R 3 is connected to the positive output end of rectifier bridge, the other end of resistance R 3 is connected with ground with resistance R 5 by resistance R 4 successively, and the two ends of resistance R 5 are also parallel with capacitor C 3; Resistance R 4 is connected with the node of resistance R 5 and the input of trigger.
7. compatible type LED tube circuit according to claim 4, is characterized in that: described switching circuit comprises relay T1 and triode Q1; The switch of relay T1 is connected with dividing potential drop capacitor C 13, and this series arm is connected between two lamp bases; The coil of relay T1 is connected with triode Q1, and this series arm is connected between direct current supply and ground; The base stage of triode Q1 is connected as the control end of switching circuit and the output of testing circuit.
8. compatible type LED tube circuit according to claim 7, is characterized in that: described triode Q1 is NPN triode; One end of the coil of relay T1 is connected with direct current supply, and the other end of the coil of relay T1 is connected with the collector electrode of triode Q1; The grounded emitter of triode Q1; The base stage of triode Q1 is connected to the output of testing circuit by resistance R 7, be also connected with resistance R 12 between the base stage of triode Q1 and emitter; The coil two ends of relay T1 are also parallel with capacitor C 4; Direct current supply is also by capacitor C 5 ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320713294.3U CN203645869U (en) | 2013-11-12 | 2013-11-12 | Compatible LED fluorescent tube circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320713294.3U CN203645869U (en) | 2013-11-12 | 2013-11-12 | Compatible LED fluorescent tube circuit |
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| Publication Number | Publication Date |
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| CN203645869U true CN203645869U (en) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320713294.3U Expired - Fee Related CN203645869U (en) | 2013-11-12 | 2013-11-12 | Compatible LED fluorescent tube circuit |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870974A (en) * | 2017-03-01 | 2017-06-20 | 深圳驰迅科技有限公司 | A kind of Multi-function compatible type fluorescent tube |
| US11441742B2 (en) | 2015-12-09 | 2022-09-13 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | LED tube lamp |
| US11519565B2 (en) | 2015-03-10 | 2022-12-06 | Jiaxing Super Lighting Electric Appliance Co., Ltd | LED lamp and its power source module |
| US11519567B2 (en) | 2014-09-28 | 2022-12-06 | Jiaxing Super Lighting Electric Appliance Co., Ltd | LED tube lamp |
| US11543086B2 (en) | 2015-03-10 | 2023-01-03 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | LED tube lamp |
| US11649934B2 (en) | 2014-09-28 | 2023-05-16 | Jiaxing Super Lighting Electric Appliance Co., Ltd | LED tube lamp |
| US11686457B2 (en) | 2014-09-28 | 2023-06-27 | Jiaxing Super Lighting Electric Appliance Co., Ltd | LED tube lamp |
| US11698170B2 (en) | 2015-03-10 | 2023-07-11 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | LED tube lamp |
-
2013
- 2013-11-12 CN CN201320713294.3U patent/CN203645869U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11519567B2 (en) | 2014-09-28 | 2022-12-06 | Jiaxing Super Lighting Electric Appliance Co., Ltd | LED tube lamp |
| US11649934B2 (en) | 2014-09-28 | 2023-05-16 | Jiaxing Super Lighting Electric Appliance Co., Ltd | LED tube lamp |
| US11686457B2 (en) | 2014-09-28 | 2023-06-27 | Jiaxing Super Lighting Electric Appliance Co., Ltd | LED tube lamp |
| US11519565B2 (en) | 2015-03-10 | 2022-12-06 | Jiaxing Super Lighting Electric Appliance Co., Ltd | LED lamp and its power source module |
| US11543086B2 (en) | 2015-03-10 | 2023-01-03 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | LED tube lamp |
| US11698170B2 (en) | 2015-03-10 | 2023-07-11 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | LED tube lamp |
| US11841113B2 (en) | 2015-03-10 | 2023-12-12 | Jiaxing Super Lighting Electric Appliance Co., Ltd | LED lamp and its power source module |
| US11441742B2 (en) | 2015-12-09 | 2022-09-13 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | LED tube lamp |
| CN106870974A (en) * | 2017-03-01 | 2017-06-20 | 深圳驰迅科技有限公司 | A kind of Multi-function compatible type fluorescent tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20191112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |