CN201393342Y - Electronic ballast and lighting device - Google Patents

Electronic ballast and lighting device Download PDF

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Publication number
CN201393342Y
CN201393342Y CN200920002534U CN200920002534U CN201393342Y CN 201393342 Y CN201393342 Y CN 201393342Y CN 200920002534 U CN200920002534 U CN 200920002534U CN 200920002534 U CN200920002534 U CN 200920002534U CN 201393342 Y CN201393342 Y CN 201393342Y
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China
Prior art keywords
module
signal
electric ballast
coupled
detecting
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Expired - Lifetime
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CN200920002534U
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Chinese (zh)
Inventor
叶俊麟
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Darfon Electronics Suzhou Co Ltd
Darfon Electronics Corp
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Darfon Electronics Suzhou Co Ltd
Darfon Electronics Corp
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Priority to CN200920002534U priority Critical patent/CN201393342Y/en
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Abstract

The utility model provides an electronic ballast and a lighting device with the electronic ballast. The electronic ballast is used for driving a plurality of lighting tubes and comprises a processing module, a detecting module, a coding module, a driver module and a current converter module. The processing module is used for generating a DC signal according to a first AC signal. When the detecting module detects a starting signal, the detecting module generates a detecting result according to the starting signal. The coding module is coupled with the detecting module and is used for determining the specific drive mode corresponding to the detecting result in a plurality of the drive modes according to the detecting result. The current converter module is used for selectively switching on a plurality of the lighting tubes according to the driving signal from the drive module.

Description

Electric ballast and lighting device
Technical field
The utility model is about a kind of electric ballast and uses the lighting device of this electric ballast that especially, the utility model is the lighting device that can optionally control the electric ballast of a plurality of fluorescent tubes alone and use this electric ballast about a kind of.
Background technology
In recent years, increase because the consumption of petroleum amount is huge, the energy shortage problem is subjected to the whole world gradually and payes attention to, and with the average electricity consumption situation of present domestic consumer, general lighting accounts for daily electric weight about 30%.Therefore use high efficiency, volume is little and high-quality electric ballast product replacement traditional electrical magnetic-type ballast, has become clear and definite trend.
Electric ballast is operated with high frequency mode, compares traditional electrical magnetic-type ballast luminous efficiency (lumens perwatt) and can promote approximately 10%, and saves electrification about 10～20%.Advantage such as little, the in light weight and cosmetic variation of electric ballast volume is easy in addition makes its applied environment more extensive.
Please refer to Fig. 1, Fig. 1 is the functional block diagram of known electric ballast 2.As shown in Figure 1, known electric ballast 2 mainly comprises electromagnetic interference (electro magnetic interference, EMI) filter 20, rectification module 22, merit is because of correcting module 24 and drive module 26.
In known electric ballast 2, Electromagnetic interference filter 20 is in order to receiving the alternating current that power supply 10 is exported, but and Electromagnetic interference filter 20 filterings or isolation follow alternating current to enter the noise of electric ballast 2.Then, filtered alternating current will be converted to direct current via rectification module 22.In practical application, the direct current after the rectification is not a direct current stably, but has the direct current of ripple (ripple) composition, and the ripple composition will influence the quality of the direct current of output.In other words, if ripple is big more, then the quality of direct current is poor more; Otherwise,, then can provide a stable DC electric current if ripple is little.
In addition, the direct current that contains the ripple composition also will influence its power factor, revise its power factors so need to see through merit because of correcting module 24, so that the direct current of the stable and high power factor of next stage to be provided.Then, the transducer (inverter) of direct current through driving module 26 converts the alternating current of high frequency to, and afterwards, the alternating current of high frequency produces the high-frequency gain with oscillating circuit again, can promote and light fluorescent tube 30.
Be noted that known electric ballast only can provide the fixed frequency gain, and promote the fluorescent tube limited amount.In other words, when the increase of fluorescent tube quantity, the electric ballast of the relative populations of then need arranging in pairs or groups causes user cost increase and control circuit more complicated.
The utility model content
Therefore, the purpose of this utility model is to provide a kind of electric ballast, and this electric ballast optionally drives single or a plurality of fluorescent tubes.Thus, electric ballast of the present utility model can be controlled a plurality of fluorescent tubes alone, makes it can have more elasticity in the use, and can effectively reduce and make electricity consumption ballast quantity, to solve the known techniques problem.
Electric ballast of the present utility model comprises handles module, detecting module, coding module, driving module and converter module.Handling module is in order to produce direct current signal according to first AC signal.In addition, when the detecting module detected enabling signal, the detecting module produced the detecting result according to enabling signal.The coding module is coupled to the detecting module, in order to determine the specific drive pattern corresponding to the detecting result in a plurality of drive patterns according to the detecting result.The converter module is according to the converter (DC/AC) of the drive signal that drives module with selectively unlocking converter module, and then lights or open this a plurality of fluorescent tubes.
A kind of lighting device is characterized in that comprising:
Power supply is to provide first AC signal;
Above-mentioned electric ballast is coupled to power supply, plants drive signal in order to produce plural number;
A plurality of tube module are coupled to this electric ballast, and optionally light fluorescent tube according to the plural number kind drive signal of this its generation of electronic ballast; And
The protection module is coupled to this electric ballast and this a plurality of tube module, when this protection module detects any one fluorescent tube generation abnormality in these a plurality of tube module, orders electric ballast to stop output drive signal to tube module.
Wherein, this supply coupling is to the processing module of this electric ballast.
Wherein, these a plurality of tube module are coupled to the converter module of this electric ballast.
Wherein this protection module is coupled to the converter module of this electric ballast.
The electric ballast comprehensively above-mentioned, that the utility model provides optionally drives single or a plurality of fluorescent tubes.Thus, the fluorescent tube number that electric ballast of the present utility model can utilize switch, detecting module, driving module and the control of converter module to desire to light, make it can have more elasticity and efficient in the use, and electric ballast quantity capable of reducing using, to solve the known techniques problem.
The utility model is elaborated with specific embodiment below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is the functional block diagram of known electric ballast.
Fig. 2 A is the functional block diagram according to the electric ballast of a specific embodiment of the present utility model.
Fig. 2 B is the detailed functions calcspar of the processing module among Fig. 2 A.
Fig. 3 is the flow chart according to the electric ballast How It Works of another specific embodiment of the present utility model.
Embodiment
Fig. 2 A is the functional block diagram according to the electric ballast of the utility model one specific embodiment.Please refer to Fig. 2 A, electric ballast 4 comprises handles module 40, detecting module 42, coding module 44, driving module 48 and converter module 46.Electric ballast 4 is in order to drive tube module 50.In actual applications, the fluorescent tube of tube module 50 can be the fluorescent tube of any pattern, for example fluorescent lamp, cold cathode fluorescent lamp or other gas discharge lamp tube.
Handle module 40 and be coupled to power supply 10, and receive first AC signal, handle module 40 and can produce direct current signal according to first AC signal from power supply 10.In addition, detecting module 42 can be detected enabling signal, and produces the detecting result according to enabling signal.
Wherein, enabling signal is that institute produces when being activated by first switch 12 or second switch 13.First switch 12 directly is coupled to detecting module 42.Second switch 13 is coupled to power supply 10 and handles between the module 40, handles the enabling signal that is produced when module 40 can activated second switch 13 and delivers to detecting module 42.Below be example with first switch, when first switch 12 activated (for example the user produces and switches or the action of push switch 12), detecting module 42 detected enabling signal, and starts the pattern that preestablishes.When first switch 12 activated once more, then detect module 42 and can detect new enabling signal, and produce new detecting result according to new enabling signal.In fact, the pattern of first switch 12 there is no certain restriction, and can be the single hop switch, not have section push-button switch or touching switch, but not as limit.
Coding module 44 is coupled to detecting module 42, in order to determine the specific drive pattern corresponding to the detecting result in a plurality of drive patterns according to the detecting result.Wherein, specific drive pattern will comprise the number of lighting fluorescent tube corresponding to this detecting result.Drive module 48 and produce a drive signal according to specific drive pattern.In this embodiment, coding module 44 can be after receiving the detecting result, and memory is detected the result and it is compiled into the code signal of circulation, or as shown in table 1, according to user's demand, preestablish required specific drive pattern and will set the result and be stored in the module 44 of encoding.
Table 1: the relation under the different driving pattern between lamp tube starting number and switch switching times
In the table 1, suppose that tube module has N fluorescent tube, under first drive pattern, when the user's diverter switch first time, will have 1 fluorescent tube and be lighted; When the user's diverter switch second time, then have 2 fluorescent tubes and lighted, the rest may be inferred.Under second drive pattern, when the user's diverter switch first time, will have 2 fluorescent tubes and be lighted; When the user's diverter switch second time, then have 3 fluorescent tubes and lighted, the rest may be inferred.Under the 3rd drive pattern, when the user's diverter switch first time, will have 3 fluorescent tubes and be lighted; When the user's diverter switch second time, then have 4 fluorescent tubes and lighted, the rest may be inferred.Relation that it should be noted that above-mentioned switch switching times shown in the table 1 and lamp tube starting number only is an example, not as limit.
Drive module 48 and couple coding module 44 and converter module 46, the converter in the converter module 46 (DC/AC) is coupled to the fluorescent tube in the tube module 50 respectively.A plurality of fluorescent tubes are optionally lighted or closed to converter module 46 according to the drive signal that drives module 48 generations.
Protection module 49 is coupled to converter module 46 and a plurality of fluorescent tube 50; when protection module 49 detects any one fluorescent tube in a plurality of tube module 50 when producing abnormality, protection module 49 promptly can order converter module 46 to stop output drive signal to tube module 50.In actual applications, problem such as so-called abnormal condition of lamp tube state may be the wearing out of fluorescent tube, break, filament breaking or circuit connection error, but not as limit.
Please refer to Fig. 2 B, Fig. 2 B is the detailed functions calcspar of the processing module 40 among Fig. 2 A.Shown in Fig. 2 B, handle module 40 and can further comprise first processing unit 400, second processing unit 402 and the 3rd processing unit 404.Wherein first processing unit 400 is in order to the electromagnetic interference noise of filtering first alternating current; Second processing unit 402 is coupled to first processing unit 400, and in order to first AC signal is converted to direct current signal; The 3rd processing unit 404 is coupled to second processing unit 402, and in order to promote the power factor of direct current signal.Thus, handle module 40 and AC signal can be done further rectification and produce direct current signal, and provide the direct current signal of stable and high power factor to use for next stage.
For illustrating that electric ballast of the present utility model can drive a plurality of fluorescent tubes, will cooperate the method for following operation electric ballast of the present utility model to be described in detail.Please refer to Fig. 3, Fig. 3 is the flow chart of this electric ballast How It Works.
As shown in Figure 3, at first, this method execution in step S60 receives first AC signal that power end is sent, and converts first AC signal to direct current signal through rectification.In fact, first alternating current is equivalent to general alternating current, and the circuit transmission course is influenced by nearby device, causes this first AC signal to contain noise, and imperfect string ripple signal.Thus, but this method filtering or isolate the noise that first alternating current is comprised, and its rectification is converted to direct current signal and improves power factor.When the power factor value more near 1 the time, expression can provide next stage galvanic current source more.
Then, this method execution in step S62 detects and judges whether to detect enabling signal.Wherein, enabling signal can be activated (for example switch or push) by switch and produce, and switch can be the single hop switch, not have section push-button switch or touching switch, but not as limit.
If this method detects enabling signal, then this method execution in step S64 produces the detecting result according to enabling signal.Then, this method execution in step S66, the result determines in a plurality of drive patterns corresponding to the specific drive pattern of detecting the result according to detecting.In this embodiment, specific drive pattern is meant the switch switching that will detect or pushes signal, remembers and be compiled into the code signal of circulation.And specific drive pattern is lighted or closes the number of fluorescent tube corresponding to a kind of detecting result with decision.
Subsequently, this method execution in step S68 produces drive signal according to direct current signal and specific drive pattern, optionally to light or to close the fluorescent tube quantity that specific drive pattern sets.
Further, this method execution in step S70, this method judges whether electric ballast detects switch and activated (switch or push) once more and produce another enabling signal.If the detecting module detects another enabling signal, then this method repeating step S64 produces corresponding drive signal to light or to close controlled a plurality of fluorescent tube.Otherwise,, then keep the pattern of lighting originally or closing fluorescent tube quantity if this method does not detect any new enabling signal as yet.
If this method does not detect enabling signal, then electric ballast is kept the pattern that sets when starting, and whether lasting detection switch has switching or push action.In practical application, electric ballast is promptly carried out initial drive pattern after starting.
In sum, the electric ballast that the utility model provides utilizes detection switch to activate number of times optionally to drive single or a plurality of fluorescent tubes.Thus, electric ballast of the present utility model utilizes the Auto-Sensing signal to drive the fluorescent tube number that should light, makes it can have more elasticity and efficient in the use, and effectively reduces the employed electric ballast quantity of fluorescent tube, to solve the problem that known techniques was faced.
By the above detailed description of preferred embodiments, hope can be known description feature of the present utility model and spirit more, and is not to come claim scope of the present utility model is limited with above-mentioned disclosed preferred embodiment.On the contrary, its objective is that hope can contain in the scope of the claim that is arranged in the desire application of the utility model institute of various changes and tool equality.

Claims (10)

1. electric ballast in order to drive a plurality of fluorescent tubes, is characterized in that comprising:
Handle module, in order to produce direct current signal according to first AC signal;
The detecting module, when this detecting module detected enabling signal, this detecting module produced the detecting result according to this enabling signal;
The coding module is coupled to this detecting module, in order to determine a specific drive pattern corresponding to this detecting result from a plurality of drive patterns according to this detecting result;
Drive module, couple this coding module, produce drive signal according to this specific drive pattern; And the converter module, couple this driving module and these a plurality of fluorescent tubes, this converter module according to this drive signal optionally to light this a plurality of fluorescent tubes.
2. electric ballast as claimed in claim 1 is characterized in that: also comprise first switch, couple this detecting module, wherein this enabling signal is that institute produces when being activated by this first switch.
3. electric ballast as claimed in claim 1 is characterized in that: also comprise second switch, be coupled between this power supply and this processing module that wherein this enabling signal is that institute produces when being activated by this second switch.
4. electric ballast as claimed in claim 1 is characterized in that: this processing module is coupled to power supply, and accepts the AC signal that this power supply produces, to produce direct current signal.
5. electric ballast as claimed in claim 1 is characterized in that: this detecting module also couples this processing module, accepting the direct current signal that this processing module produces, and produces the detecting result.
6. electric ballast as claimed in claim 4 is characterized in that: this processing module can further comprise first processing unit, second processing unit and the 3rd processing unit; Wherein this first processing unit is in order to the electromagnetic interference noise of filtering first alternating current; Second processing unit is coupled to first processing unit, and in order to first AC signal is converted to direct current signal; The 3rd processing unit is coupled to second processing unit, and in order to promote the power factor of direct current signal.
7. lighting device is characterized in that comprising:
Power supply is to provide first AC signal;
As the described electric ballast of claim 1 to 6, be coupled to power supply, plant drive signal in order to produce plural number;
A plurality of tube module are coupled to this electric ballast, and optionally light fluorescent tube according to the plural number kind drive signal of this its generation of electronic ballast; And
The protection module is coupled to this electric ballast and this a plurality of tube module, when this protection module detects any one fluorescent tube generation abnormality in these a plurality of tube module, orders electric ballast to stop output drive signal to tube module.
8. lighting device as claimed in claim 7 is characterized in that: this supply coupling is to the processing module of this electric ballast.
9. lighting device as claimed in claim 7 is characterized in that: these a plurality of tube module are coupled to the converter module of this electric ballast.
10. lighting device as claimed in claim 7 is characterized in that: this protection module is coupled to the converter module of this electric ballast.
CN200920002534U 2009-02-03 2009-02-03 Electronic ballast and lighting device Expired - Lifetime CN201393342Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200920002534U CN201393342Y (en) 2009-02-03 2009-02-03 Electronic ballast and lighting device

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Application Number Priority Date Filing Date Title
CN200920002534U CN201393342Y (en) 2009-02-03 2009-02-03 Electronic ballast and lighting device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102595746A (en) * 2011-01-12 2012-07-18 硕颉科技股份有限公司 Driving device of fluorescent tube and method and lighting device thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102595746A (en) * 2011-01-12 2012-07-18 硕颉科技股份有限公司 Driving device of fluorescent tube and method and lighting device thereof

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Granted publication date: 20100127