CN201674707U - Driving device suitable for low-voltage fluorescent lamp under different power sources - Google Patents
Driving device suitable for low-voltage fluorescent lamp under different power sources Download PDFInfo
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- CN201674707U CN201674707U CN2010201890370U CN201020189037U CN201674707U CN 201674707 U CN201674707 U CN 201674707U CN 2010201890370 U CN2010201890370 U CN 2010201890370U CN 201020189037 U CN201020189037 U CN 201020189037U CN 201674707 U CN201674707 U CN 201674707U
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Abstract
The utility model discloses a driving device suitable for a low-voltage fluorescent lamp under different power sources, which comprises a rectifier circuit, an electric energy storage and switching circuit, a filter circuit and a tube driving circuit that are connected sequentially. The rectifier circuit is electrically connected with a power supplier. The tube driving circuit is electrically connected with the fluorescent tube. The electric energy storage and switching circuit is used for enhancing the single pulse direct current switched by the rectifier circuit up to a steady potential state through a high-frequency conversion and inductance power storage. To adapt to the low-voltage energy-saving lamp in the unsteady input voltage, the circuit frame commonly used for the traditional energy-saving lamp is added with the electric energy storage and switching circuit, thereby the single pulse direct current switched by the rectifier circuit is enhanced up to a steady potential state through the high-frequency conversion and the inductance power storage and treated by the filter circuit to be the steady electric energy free from the influence of the input continuous power energy. Therefore, the low-voltage fluorescent lamp does not flash.
Description
Technical field
The utility model relates to a kind of low-voltage fluorescence driving lamp, especially relates to a kind of low-voltage fluorescence driving lamp that adapts under different electrical power.
Background technology
Halogen lamp LED is because of having powerful localized lighting and low cost, thereby is widely used in the occasion of localized lighting, as the display case of bullion shop, boutique or emphasize the presentations etc. of feature article.Yet described Halogen lamp LED is a kind of highly energy-consuming and the product that can produce high heat when luminous, so that use more occasion can feel warm at Halogen lamp LED, even heat difficult to understand is endlessly, thus bring inconvenience to the user.In addition, Halogen lamp LED is the highly energy-consuming product, and it is many to produce the carbon amount, thereby not environmental protection.
For addressing the above problem, can utilize low-voltage fluorescent lamp directly to substitute above-mentioned Halogen lamp LED in the occasion of localized lighting and use the electronic type transformer to make power supply, realize not needing to replace the purpose that light fixture just can reach energy-conserving and environment-protective.Described low-voltage fluorescent lamp is provided with power supply unit, fluorescent tube usually and is used to drive the low-voltage fluorescence driving lamp of described fluorescent tube, and described low-voltage fluorescence driving lamp comprises rectification circuit, filter circuit and the lamp tube drive circuit that connects along order.Yet, described power supply unit typically uses low pressure halogen lamp electronic type transformer, it is output as high-frequency ac, can occur under the lighter situation of load that the low and power supply energy of output voltage is under-supply to be interrupted situation, so can cause described fluorescent tube to produce scintillation owing to energy is under-supply.
The utility model content
The utility model be at the defective that the above-mentioned background technology exists provide a kind of make that fluorescent lamp can not glimmer adapt to low-voltage fluorescence driving lamp under different electrical power.
For achieving the above object, the utility model discloses a kind of low-voltage fluorescence driving lamp that adapts under different electrical power, itself and power supply unit and fluorescent tube are electrical connected and are used for the driving fluorescent lamp pipe.The described low-voltage fluorescence driving lamp that adapts under different electrical power comprises a rectification circuit, an electrical power storage and change-over circuit, a filter circuit and a lamp tube drive circuit.Described rectification circuit is electrically connected with described power supply unit, described lamp tube drive circuit is electrically connected with described filter circuit and described fluorescent tube, and described electrical power storage is electrically connected with described rectification circuit and filter circuit with change-over circuit and the individual event pulse direct current that is used for described rectification circuit is changed out switches with inductive energy storage through high frequency and is promoted to a stable potential state.
Further, the described low-voltage fluorescence driving lamp that adapts under different electrical power also comprises a feedback circuit and a pulse-width modulation circuit, described feedback circuit is electrically connected with described filter circuit and described pulse-width modulation circuit, described feedback circuit is used for the voltage signal of described filter circuit output is fed back to described pulse-width modulation circuit, and feedback circuit also can be considered not use under the too not accurate situation of voltage request; Described pulse-width modulation circuit to the described electrical power storage impulse wave different with the change-over circuit output frequency, makes the output of described filter circuit be adjusted to a stationary value according to described voltage signal.
Further, the described low-voltage fluorescence driving lamp that adapts under different electrical power also comprises a startup and an assistant starting power circuit that is electrically connected with the output and the described pulse-width modulation circuit of described rectification circuit, and described startup and assistant starting power circuit are used for the described fluorescent tube of assistant starting.
Further, the described low-voltage fluorescence driving lamp that adapts under different electrical power also comprises a slope equalizer that is electrically connected with described pulse-width modulation circuit.
In sum, the utility model is by adding described electrical power storage and change-over circuit between described rectification circuit and filter circuit in the circuit framework of using always in traditional energy-saving lamp, thereby the individual event pulse direct current that rectification circuit can be changed out switches through high frequency and inductive energy storage is promoted to a stable potential state, and wave circuit is treated as and is not subjected to import the regulated power that interrupted power supply energy influences after filtration, thereby fluorescent lamp can not glimmered.
Description of drawings
Fig. 1 is the theory diagram of a kind of embodiment of the utility model;
Fig. 2 is the theory diagram of the utility model shown in Figure 1 when cooperating with power supply unit and fluorescent tube;
Fig. 3 is the structural representation of the utility model shown in Figure 1 when cooperating with fluorescent tube;
Structural representation when Fig. 4 cooperates in continuous housing and the lampshade and with power supply unit for the utility model shown in Figure 1 is installed in;
Fig. 5 is installed in continuous housing and the lampshade for the utility model shown in Figure 1 and the structural representation when being fixed on the display case by described lampshade.
Embodiment
For further understanding feature of the present utility model, technological means and the specific purposes that reached, function, the utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
See also Fig. 1 to Fig. 5, the low-voltage fluorescence driving lamp 1 that the utility model can adapt under different electrical power is used for cooperating with power supply unit 2 and fluorescent tube 3, and described power supply unit 2 is used to provide interchange or the direct current of 11V-12V.The described low-voltage fluorescence driving lamp 1 that adapts under different electrical power comprises that a rectification circuit 11, an electrical power storage and change-over circuit 12, a filter circuit 13, a lamp tube drive circuit 14, a feedback circuit 15, a pulse-width modulation circuit 16, start and an assistant starting power circuit 17 and a slope equalizer 18.
Described rectification circuit 11 is electrically connected with described power supply unit 2, described electrical power storage is electrically connected with described rectification circuit 11 and filter circuit 13 with change-over circuit 12 and the individual event pulse direct current that is used for described rectification circuit 11 is changed out switches with inductive energy storage through high frequency and is promoted to a stable potential state, and described lamp tube drive circuit 14 is electrically connected with described filter circuit 13 and described fluorescent tube 3 and is used to drive described fluorescent tube 3.
Described feedback circuit 15 is electrically connected with described filter circuit 13 and described pulse-width modulation circuit 16, and described feedback circuit 15 is used for the voltage signal of described filter circuit 13 outputs is fed back to described pulse-width modulation circuit 16.Described pulse-width modulation circuit 16, makes the output of described filter circuit 13 be adjusted to a stationary value, thereby is not subjected to the influence of input voltage to described electrical power storage and the different impulse wave of change-over circuit 12 output frequencies according to described voltage signal.
Described startup is electrically connected with the output and the described pulse-width modulation circuit 16 of described rectification circuit 11 with assistant starting power circuit 17, described startup and assistant starting power circuit 17 are used for the described fluorescent tube 3 of assistant starting, thereby can guarantee the normal startup of fluorescent tube 3.Described slope equalizer 18 is electrically connected with described pulse-width modulation circuit 16; by described slope equalizer 18 is set; thereby guarantee that electrical power storage can have identical output protection operating point with change-over circuit 12 when power supply unit 2 output voltages change.
Thereby the utility model is installed in to cooperate in continuous housing 4 and the lampshade 5 and with described power supply unit 2 and described fluorescent tube 3 forms a light fixture, by described lampshade 5 is fixed on the display case 6, provide the illumination special efficacy thereby can be the article 7 that are positioned at described show window 6.
In sum, the utility model is by adding described electrical power storage and change-over circuit 12 between described rectification circuit 11 and filter circuit 13 in the circuit framework of using always in traditional energy-saving lamp, thereby the individual event pulse direct current that rectification circuit 11 can be changed out switches through high frequency and inductive energy storage is promoted to a stable potential state, and wave circuit 13 is treated as and is not subjected to import the regulated power that interrupted power supply energy influences after filtration, thereby fluorescent lamp can not glimmered.
The above embodiment has only expressed a kind of execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model scope.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with claims.
Claims (4)
1. low-voltage fluorescence driving lamp (1) that can adapt under different electrical power, itself and power supply unit (2) and fluorescent tube (3) are electrical connected and are used for driving fluorescent lamp pipe (3), the described low-voltage fluorescence driving lamp (1) that adapts under different electrical power comprises a rectification circuit (11), one filter circuit (13) and a lamp tube drive circuit (14), described rectification circuit (11) is electrically connected with described power supply unit (2), described lamp tube drive circuit (14) is electrically connected with described filter circuit (13) and described fluorescent tube (3), it is characterized in that: also comprise an electrical power storage and change-over circuit (12), described electrical power storage is electrically connected with described rectification circuit (11) and filter circuit (13) with change-over circuit (12) and the individual event pulse direct current that is used for described rectification circuit (11) is changed out switches with inductive energy storage through high frequency and is promoted to a stable potential state.
2. the low-voltage fluorescence driving lamp (1) that adapts under different electrical power according to claim 1, it is characterized in that: also comprise a feedback circuit (15) and a pulse-width modulation circuit (16), described feedback circuit (15) is electrically connected with described filter circuit (13) and described pulse-width modulation circuit (16), and described feedback circuit (15) is used for the voltage signal of described filter circuit (13) output is fed back to described pulse-width modulation circuit (16); Described pulse-width modulation circuit (16) to described electrical power storage and the different impulse wave of change-over circuit (12) output frequency, makes the output of described filter circuit (13) be adjusted to a stationary value according to described voltage signal.
3. the low-voltage fluorescence driving lamp (1) that adapts under different electrical power according to claim 2, it is characterized in that: also comprise a startup and an assistant starting power circuit (17) that is electrically connected with the output and the described pulse-width modulation circuit (16) of described rectification circuit (11), described startup and assistant starting power circuit (17) are used for the described fluorescent tube of assistant starting (3).
4. according to claim 2 or the 3 described low-voltage fluorescence driving lamps (1) that adapt under different electrical power, it is characterized in that: also comprise a slope equalizer (18) that is electrically connected with described pulse-width modulation circuit (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201890370U CN201674707U (en) | 2010-05-05 | 2010-05-05 | Driving device suitable for low-voltage fluorescent lamp under different power sources |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201890370U CN201674707U (en) | 2010-05-05 | 2010-05-05 | Driving device suitable for low-voltage fluorescent lamp under different power sources |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201674707U true CN201674707U (en) | 2010-12-15 |
Family
ID=43332113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201890370U Expired - Fee Related CN201674707U (en) | 2010-05-05 | 2010-05-05 | Driving device suitable for low-voltage fluorescent lamp under different power sources |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201674707U (en) |
-
2010
- 2010-05-05 CN CN2010201890370U patent/CN201674707U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101215 Termination date: 20140505 |