CN1960591B - Method and apparatus for warming-up and starting up luminous tube - Google Patents
Method and apparatus for warming-up and starting up luminous tube Download PDFInfo
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- CN1960591B CN1960591B CN2005101171520A CN200510117152A CN1960591B CN 1960591 B CN1960591 B CN 1960591B CN 2005101171520 A CN2005101171520 A CN 2005101171520A CN 200510117152 A CN200510117152 A CN 200510117152A CN 1960591 B CN1960591 B CN 1960591B
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Abstract
The invention discloses a method for preheating-triggering luminous tube and the apparatus thereof, wherein the apparatus outputs at least one pulse in a preset frequency to drive at least one switch device and to let the luminous tube end of resonance device connected to the switch device to generate a trigger voltage by which pre-heating and lighting the luminous tube. The invention can shorten the pre-heat time using software solution, simplify the electronic circuit and adopt different pre-heating time for filament according to the luminous tube trigger type so as to extending the service life of luminous tube.
Description
Technical field
The present invention relates to a kind of fluorescent tube preheating and startup method and device thereof of fluorescent tube, particularly relate to a kind of utilization frequency conversion mode and come preheating filament, thereby to reduce fluorescent tube melanism prolonging lamp tube fluorescent tube preheating and the startup method and the device thereof in useful life.
Background technology
Please refer to Fig. 1, basic circuit structure figure for known electronic ballast, electronic ballast is made up of various electronic components, for example Power Entry Module 1 is made up of the electromagnetic interference (EMI) filter, be used for eliminating noise, through full-wave rectification block 2 interchange be converted to direct current again and output to modular converter 3 by the alternating current circuit.Modular converter 3 will convert the electric current of high-frequency and high-voltage from the AC line voltage of Power Entry Module 1 to drive fluorescent tube.Control module 4 is that the requirement of drive system according to design comes protective circuit and improves the reliability of system; In brief, electronic ballast can be likened the configuration of a direct current alternating-current converter to.
Electronic ballast (electronics ballast) becomes the market mainstream gradually.The Starting mode of general electronic ballast is divided into pipeline start up by preheating type (soft start) and actuated type (instantstart) immediately.The pipeline start up by preheating type is the filament of fluorescent lamp, must make filament produce thermionic emission earlier with preheat curent heated cathode filament, about 0.4 ~ 1.5 second of time, lights fluorescent tube then.But should be noted that in warm,, filament is had harmful effect, and do not meet the principle of plug and play if warm-up time is long if just start fluorescent tube inadequately and consume burn-out life easily warm-up time.Actuated type is a tube filament immediately, does not need process preheating program earlier, in 0.1 second, utilizes twice side no-load high pressure of stabilizer, with lamp tube starting; Just can be without directly cold start-up of preheating with the high pressure bombarding cathode, but high voltage startup causes the fluorescent tube melanism easily, is an infringement greatly to lamp tube service life.
Generally selecting the preceding characteristic that must understand different types light source body (light source) of stabilizer for use, is the negative characteristic assembly as fluorescent lamp, and must use positive characteristic assembly to compensate could long-term stable operation.Metal halide lamp has negative resistance property, from start instantaneous to luminous stable state must experience voltage collapse (Breakdown), glow discharge (Glow Discharge), aura to arc light change attitude (Glow To Arc, GTA) and arc discharge four different Main Stage such as (Arc Discharge).Have, when selecting electronic ballast, another the important problem that will consider is arranged, that is exactly the problem of mating with the light source body, as the fluorescent lamp tube of different startup forms in above-mentioned, must mate multi-form electronic ballast; Relatively, the employed electronic ballast of metal halide lamp, also different with the employed electronic ballast of fluorescent lamp.So the making of electronic ballast must cooperatively interact with light source characteristic, could really reach effect of saving energy like this, and the usefulness of performance light source body.
Please refer to the Taiwan patent announcement number No. 00360883, this patent discloses a kind of frequency converting and preheating formula electronic ballast, be applied to light fluorescent tube, switching frequency with switching device shifter before the unstart fluorescent tube is changed by the resonance frequency of a characteristic frequency toward stabilizer, when switching frequency was changed near resonance frequency, the voltage at fluorescent tube start capapcitor two ends can increase gradually lighted fluorescent tube.Simultaneously at switching frequency toward the resonance frequency variation and when not lighting fluorescent tube, the alternating current of the filament of flowing through carries out preheating to it.
Though the preheat lamp pipe is to avoid the fluorescent tube melanism in advance for aforesaid way, still the grasp on warm-up time is also indeterminate, and because the aging meeting of electronic component causes difference start-up time each time.
Summary of the invention
The object of the present invention is to provide a kind of fluorescent tube preheating and startup method and device thereof, solve the existing problem of known technology whereby.
To achieve these goals, the invention provides a kind of fluorescent tube preheating and startup method, the frequency of exporting at least one pulse drives at least one switching device shifter, and make the resonance device that links switching device shifter produce magnitude of voltage in fluorescent tube, come preheating whereby and light fluorescent tube, include the following step: at first, set original frequency, first setpoint frequency, second setpoint frequency, setting-up time and first termination time value; Adjust the frequency of pulse with original frequency; Original frequency again adds up; Then, when the frequency of pulse equals first setpoint frequency, in setting-up time, keep the frequency of pulse; And when the frequency of pulse equaled second setpoint frequency, the frequency of fixed pulse was finished preheating and is lighted the program of fluorescent tube.
To achieve these goals, the invention provides second kind of fluorescent tube preheating and startup method, the frequency of exporting at least one pulse drives at least one switching device shifter, and make the resonance device that links switching device shifter produce magnitude of voltage in fluorescent tube, come preheating whereby and light fluorescent tube, include the following step: at first, set up reference table, set first preset frequency, second preset frequency, the scheduled time and the second termination time value; Then according to magnitude of voltage comparison reference table, to obtain reference frequency; The frequency that reaches pulse is adjusted into reference frequency, when the frequency of pulse equals first preset frequency, in the given time, keeps the frequency of pulse; When the frequency of pulse equaled second preset frequency, the frequency of fixed pulse was finished preheating and is lighted the program of fluorescent tube.
To achieve these goals, the invention provides the third fluorescent tube preheating and startup method, the frequency of exporting at least one pulse drives at least one switching device shifter, and make the resonance device that links switching device shifter produce magnitude of voltage in fluorescent tube, come preheating whereby and light fluorescent tube, include the following step: at first, set up the modulation table, set first predetermined resistance, second predetermined resistance, first scheduled time, second scheduled time and the 3rd termination time value; Follow first scheduled time of every interval, calculate the resistance value of resonance device; With resistance value comparison modulation table, obtain the modulation value again; Then according to the frequency of modulation value modulation pulse; When the resistance change of resonance device during, in second scheduled time, keep the frequency of the pulse of corresponding resistance value to first predetermined resistance; And, fix the frequency of the pulse of corresponding resistance value when resistance change during to second predetermined resistance, finish preheating and light the program of fluorescent tube.
To achieve these goals, the invention provides a kind of fluorescent tube preheating and starting drive, the frequency of exporting at least one pulse drives at least one switching device shifter, and make the resonance device that links switching device shifter produce magnitude of voltage in fluorescent tube, come preheating whereby and light fluorescent tube, include counting module, pulse adjusting module, the first inspection module and first limiting module.Counting module is provided with original frequency, and the original frequency that adds up; The pulse adjusting module is adjusted the frequency of pulse according to original frequency; First checks that module is used for confirming that the frequency of pulse is first setpoint frequency or second setpoint frequency, sends corresponding first signal and secondary signal to first limiting module.First limiting module is according to first signal, and in setting-up time, the frequency of keeping pulse is first setpoint frequency and is second setpoint frequency according to the frequency of secondary signal fixed pulse, to reach preheating and to light the purpose of fluorescent tube.
To achieve these goals, the invention provides second kind of fluorescent tube preheating and starting drive, the frequency of exporting at least one pulse drives at least one switching device shifter, and make the resonance device that links switching device shifter produce magnitude of voltage in fluorescent tube, come preheating whereby and light fluorescent tube, include variable-frequency pulse module, second and check the module and second limiting module.The variable-frequency pulse module is used for adjusting the frequency of the pulse of relevant voltage value, and afterwards, second checks that module confirms that the frequency of pulse is first preset frequency or second preset frequency, to send corresponding the 3rd signal and the 4th signal to second limiting module.Second limiting module is according to the 3rd signal, and in the given time, the frequency of keeping pulse is first preset frequency and is second preset frequency according to the frequency that the 4th signal fixes pulse, to reach preheating and to light the purpose of fluorescent tube.
To achieve these goals, the invention provides the third fluorescent tube preheating and starting drive, the frequency of exporting at least one pulse drives at least one switching device shifter, and make the resonance device that links switching device shifter produce magnitude of voltage in fluorescent tube, come preheating whereby and light fluorescent tube, include measurement module, PM module, the 3rd inspection module and the 3rd limiting module.Measurement module is in first scheduled time of every interval, and after the resistance value of measurement resonance device, the PM module obtains the modulation value according to resistance value again, to adjust the frequency of pulse.Then, the 3rd checks that module affirmation resistance change reaches first predetermined resistance or second predetermined resistance, and sends corresponding the 5th signal and the 6th signal to the three limiting module.The 3rd limiting module according to the 5th signal in the given time, keep corresponding first predetermined resistance pulse frequency and according to the frequency of the pulse of fixing corresponding second predetermined resistance of the 6th signal.
The mode of fluorescent tube preheating disclosed in this invention and Starting mode utilization frequency conversion is with the filament of the preheating warm-up time electric light of two-part, and start fluorescent tube in the given time, therefore do not have the situation that causes startup fluorescent tube asynchronism(-nization) each time because of wearing out of electronic component.Therefore, can grasp fluorescent tube preheating and start-up time accurately, and effectively reduce fluorescent tube melanism and then prolonging lamp tube useful life.Can realize the frequency converting and preheating device with software mode, its characteristics be can facilitating electronic circuit assembly, filament also visual fluorescent tube the startup kenel and take different warm-up time.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Fig. 1 is known electronic ballast basic circuit structure figure;
Fig. 2 is a filament pre-heating oscillogram disclosed in this invention;
Fig. 3 is the calcspar of first kind of fluorescent tube preheating disclosed in this invention and starting drive;
Fig. 4 is the calcspar of second kind of fluorescent tube preheating disclosed in this invention and starting drive;
Fig. 5 is the calcspar of the third fluorescent tube preheating disclosed in this invention and starting drive;
Fig. 6 is the series resonance isoboles of resonance device in the electronic ballast;
Fig. 7 is first kind of fluorescent tube preheating disclosed in this invention and starts method flow diagram;
Fig. 8 is second kind of fluorescent tube preheating disclosed in this invention and starts method flow diagram;
Fig. 9 is the third fluorescent tube preheating disclosed in this invention and starts method flow diagram;
Figure 10 is known voltage and the map of current that starts fluorescent tube immediately;
Figure 11 is the voltage and the map of current of preheating of known frequency conversion fluorescent tube and startup method; And
Figure 12 is the voltage and the map of current of fluorescent tube preheating disclosed in this invention and startup method.
Wherein, Reference numeral:
1 Power Entry Module
2 full-wave rectification block
3 modular converters
4 control modules
10 switching device shifters
11 resonance devices
12 fluorescent tube preheating and starting drives
15 counting modules
20 pulse adjusting modules
21 first obtain module
22 first timing modules
23 first light module
25 first check module
30 first limiting module
40 Voltage Feedback modules
41 reference tables
42 comparing units
43 second obtain module
44 second timing modules
45 second light module
46 variable-frequency pulse modules
50 second check module
55 second limiting module
60 measurement modules
61 current measuring units
62 voltage measurement units
63 resistance measuring units
65 PM modules
66 modulation tables
67 search the unit
68 the 3rd obtain module
69 the 3rd timing modules
70 thirdly bright modules
71 the 3rd check module
75 the 3rd limiting module
80 resistors
81 inductors
82 capacitors
Embodiment
The present invention is the electronic ballast that is used to light fluorescent tube, carry out starting fluorescent tube after the preheating with the filament of frequency converting and preheating mode to fluorescent tube, as shown in Figure 2, be filament pre-heating oscillogram disclosed in this invention, with the mode of frequency converting and preheating through just lighting first warm-up time and second warm-up time fluorescent tube, therefore can grasp warm-up time accurately, can not cause difference start-up time each time because of the aging of electronic component.Preheating method disclosed in this invention is realized frequency conversion with electronic circuit and software mode, and fluorescent tube is adopted flexible the startup, can reach to use on difference starts the fluorescent tube of form and the purpose of effective prolonging lamp tube service life.
Please refer to Fig. 3, calcspar for first kind of fluorescent tube preheating disclosed in this invention and starting drive 12, the frequency of exporting at least one pulse drives at least one switching device shifter 10, and make the resonance device 11 that links switching device shifter 10 produce magnitude of voltage in fluorescent tube, come preheating whereby and light fluorescent tube, include counting module 15, pulse adjusting module 20, first and check that module 25, first limiting module 30, first obtain module 21, first timing module 22 and first is lighted module 23.Wherein switching device shifter 10 can be formed by mos field effect transistor (MOSFET), and resonance device 11 by capacitor fluorescent tube in parallel after the polyphone inductor form.Operation that it is detailed and connection square will be described below.
Comprise original frequency in the counting module 15, and the original frequency that adds up, wherein original frequency is null value at the beginning.Pulse adjusting module 20 is adjusted the frequency of each pulse according to original frequency.First checks that module 25 includes first setpoint frequency or second setpoint frequency, is used for confirming that the frequency of pulse is first setpoint frequency or second setpoint frequency, sends corresponding first signal or secondary signal.Wherein first setpoint frequency is less than second setpoint frequency, and second setpoint frequency is higher than the resonance frequency of resonant circuit 11.
In setting-up time, the frequency of keeping pulse is first setpoint frequency and according to secondary signal to first limiting module 30 according to first signal, and the frequency of fixed pulse is second setpoint frequency.
First obtain module 21 be used for obtaining at the beginning with the frequency of original frequency modulation pulse first start-up time value, then first timing module, 22 timing value first start-up time.At last, first light module 23 confirm first start-up time value equaled for first termination time during value, with the fixed-frequency of pulse in second setpoint frequency.Wherein first light module 23 and include the first termination time value.
Please refer to Fig. 4, calcspar for second kind of fluorescent tube preheating disclosed in this invention and starting drive 12, the frequency of exporting at least one pulse drives at least one switching device shifter 10, and make the resonance device 11 that links switching device shifter 10 produce magnitude of voltage in fluorescent tube, come preheating whereby and light fluorescent tube, include Voltage Feedback module 40, second and obtain that module 43, second timing module 44, second are lighted module 45, variable-frequency pulse module 46, second is checked the module 50 and second limiting module 55.Wherein switching device shifter 10 can be formed by mos field effect transistor, and resonance device 11 by capacitor fluorescent tube in parallel after the polyphone inductor form.Operation that it is detailed and connection square will be described below.
Include first preset frequency and second preset frequency in the second inspection module 50, be used for confirming that the frequency of pulse is first preset frequency or second preset frequency, send corresponding the 3rd signal or the 4th signal.Wherein first preset frequency is less than second preset frequency, and second preset frequency is higher than the resonance frequency of resonance device 11.
Second limiting module 55 according to first signal in the given time, the frequency of keeping pulse is first preset frequency or is second preset frequency according to the frequency of secondary signal fixed pulse.
Second obtain module 43 be used for obtaining at the beginning pulse is adjusted into reference frequency second start-up time value, then second timing module 44 is used for timing value second start-up time.At last, second light module 45 confirm second start-up time value equaled for second termination time during value, the fixed-frequency of pulse in second preset frequency, is lighted fluorescent tube immediately.Wherein second light and contain the second termination time value in the module 45.
Please refer to Fig. 5, calcspar for the third fluorescent tube preheating disclosed in this invention and starting drive 12, the frequency of exporting at least one pulse drives at least one switching device shifter 10, and make the resonance device 11 that links switching device shifter 10 produce magnitude of voltage in fluorescent tube, come preheating whereby and light fluorescent tube, include that measurement module 60, PM module the 65, the 3rd are obtained module 68, the 3rd timing module 69, thirdly bright module the 70, the 3rd is checked module 71 and the 3rd limiting module 75.Wherein switching device shifter 10 can be formed by mos field effect transistor, and resonance device 11 by capacitor fluorescent tube in parallel after the polyphone inductor form.Operation that it is detailed and connection square will be described below.
60 first scheduled times of every interval of measurement module, obtain the resistance value of resonance device 11.Wherein measurement module 60 includes current measuring unit 61, voltage measurement single 62 yuan and resistance measuring unit 63.Current measuring unit 61 is used for measuring the current value of the output of resonance device 11, and voltage measurement unit 62 is used for measuring the magnitude of voltage of the output of resonance device 11, and resistance measuring unit 63 calculates resistance value according to current value and magnitude of voltage.
Contain first predetermined resistance and second predetermined resistance in the 3rd inspection module 71, be used for confirming that resistance change reaches first predetermined resistance or second predetermined resistance, to send corresponding the 5th signal or the 6th signal.Wherein first predetermined resistance is greater than second predetermined resistance, and second predetermined resistance is less than the resistance value of resonance device 11.
The 3rd limiting module 75 is kept the frequency of the pulse of corresponding first resistance value according to the 5th signal in the given time, or fixes the frequency of the pulse of corresponding second resistance value according to the 6th signal.
The 3rd obtain module 68 in order to obtain at the beginning with the frequency of modulation value modulation pulse the 3rd start-up time value, then the 3rd timing module 69 timing value the 3rd start-up time.At last, thirdly bright module 70 confirm the 3rd start-up time value equaled for the 3rd termination time during value, the frequency of fixing the pulse of corresponding second resistance value.Be provided with the 3rd termination time value in the wherein thirdly bright module 70.
Please refer to Fig. 6, series resonance isoboles for resonance device in the electronic ballast, get final product a little more than the resonance frequency of resonance device and be the frequency of modulation pulse the warm-up time of fluorescent tube preheating of the present invention and starting drive 12, and the variation of modulation frequency changes along with the resonance frequency of resonance device, thereby reaches the control purpose of warm-up time.When the frequency of the pulse of fluorescent tube preheating and starting drive 12 by much larger than resonance frequency or much smaller than resonance frequency during gradually near resonance frequency, the load voltage of series resonant equipment will increase gradually.So when the pulse that is loaded with frequency when input was also changed toward resonance frequency (low frequency) by high frequency, the voltage of lamp tube ends also can increase gradually thereupon, and will light fluorescent tube during near resonance frequency.
So, when the switching frequency of switching device shifter 10 does not reach resonance frequency, the magnitude of voltage of fluorescent tube end is very little, still not enough in lamp tube starting, but by the electric current of the filament preheating filament of can going ahead of the rest, when switching frequency during near resonance frequency, the voltage of fluorescent tube end can raise fast, and with lamp tube starting, because the filament fully preheating of fluorescent tube, can decline to a great extent so be used for lighting the magnitude of voltage of fluorescent tube.
Please refer to Fig. 7, be first kind of fluorescent tube preheating disclosed in this invention and startup method flow diagram, the frequency of exporting at least one pulse drives at least one switching device shifter, and make the resonance device that links switching device shifter produce magnitude of voltage in fluorescent tube, come preheating whereby and light fluorescent tube, include the following step: at first, set original frequency, first setpoint frequency, second setpoint frequency, setting-up time and first termination time value (step 100), wherein original frequency is null value at the beginning, and first setpoint frequency is less than second setpoint frequency.Wherein second setpoint frequency is higher than the resonance frequency of resonance device.Then adjust the frequency (step 110) of pulse with original frequency; Original frequency (step 120) adds up, when the frequency of pulse equals first setpoint frequency (step 130), execution is in setting-up time, the frequency of keeping pulse is that first setpoint frequency (step 131) reaches when the frequency of pulse equals second setpoint frequency (step 140), and the frequency of fixed pulse is second setpoint frequency (step 141).
When the frequency of pulse is not equal to first setpoint frequency and second setpoint frequency, repeat the step of the frequency of above-mentioned each pulse of adjustment.
In addition, when adjusting the frequency (step 110) of pulse, obtain first value start-up time (step 150) of adjusting the frequency of pulse at the beginning with original frequency with original frequency; Value first start-up time of timing (step 160) again, when first start-up time value equaled for first termination time during value (step 170), execution is fixed in second setpoint frequency (step 141) with pulse, lights fluorescent tube immediately.
Please refer to Fig. 8, be second kind of fluorescent tube preheating disclosed in this invention and startup method flow diagram, the frequency of exporting at least one pulse drives at least one switching device shifter, and make the resonance device that links switching device shifter produce magnitude of voltage in fluorescent tube, come preheating whereby and light fluorescent tube, include the following step: at first, set up reference table, set first preset frequency, second preset frequency, the scheduled time and the second termination time value (step 200), wherein first preset frequency is less than second preset frequency; Then according to magnitude of voltage comparison reference table, obtain reference frequency (step 210), wherein obtaining of magnitude of voltage is by the Voltage Feedback module, and stores the reference frequency of corresponding each magnitude of voltage in the reference table.Frequency with pulse is adjusted into reference frequency (step 220) again.Wherein second preset frequency is higher than the resonance frequency of resonance device.When the frequency of pulse equals first preset frequency (step 230), in the given time, the frequency of keeping pulse is first preset frequency (step 231); When the frequency of pulse equals second preset frequency (step 240), the frequency of fixed pulse is the step (step 241) of second preset frequency.
When the frequency of pulse is not equal to first preset frequency and second preset frequency, repeat the step of the frequency of above-mentioned adjustment pulse.
In addition, when the frequency with pulse is adjusted into reference frequency (step 220), obtain second value start-up time (step 250) that at the beginning pulse is adjusted into this reference frequency; Value second start-up time of timing (step 260) again, when second start-up time value equaled for second termination time during value (step 270), execution is fixed in the step (step 241) of second preset frequency with pulse, lights fluorescent tube immediately.
Please refer to Fig. 9, be the third fluorescent tube preheating disclosed in this invention and startup method flow diagram, the frequency of exporting at least one pulse drives at least one switching device shifter, and make the resonance device that links switching device shifter produce magnitude of voltage in fluorescent tube, come preheating whereby and light fluorescent tube, include the following step: at first, set up the modulation table, set first predetermined resistance, second predetermined resistance, first scheduled time, second scheduled time and the 3rd termination time value (step 300), wherein first predetermined resistance is greater than second predetermined resistance, follow first scheduled time of every interval, calculate the resistance value (step 310) of resonance device, that is to say the current value (step 311) of the output of measuring resonance device; Measure the magnitude of voltage (step 312) of the output of resonance device; Calculate resistance value (step 313) with current value and magnitude of voltage; Then, obtain modulation value (step 314), wherein store the modulation value of corresponding each resistance value in the modulation table with resistance value comparison modulation table; Reach frequency (step 320), when the resistance change of resonance device reaches first predetermined resistance (step 330), in second scheduled time, keep the frequency (step 331) of the pulse of corresponding first predetermined resistance then according to the pulse of modulation value modulation; When resistance change reaches second predetermined resistance (step 340), fix the frequency (step 341) of the pulse of corresponding second resistance value again.Wherein second predetermined resistance is less than the resistance value in the resonance device.
When resistance change does not reach first predetermined resistance and second predetermined resistance, repeat the above-mentioned step of adjusting the frequency of each pulse with resistance value.
In addition, when according to the frequency (step 320) of each pulse of modulation value modulation, obtain at the beginning the 3rd value start-up time (step 350) with the frequency of modulation value modulation pulse; Value the 3rd start-up time of timing (step 360) again, when the 3rd start-up time value equaled for the 3rd termination time during value (step 370), the step (step 341) of frequency of the pulse of corresponding second resistance value is fixed in execution, lights fluorescent tube immediately.
According to the present invention is the mode that realizes with software, its experimental result as shown in figure 10, be known voltage and the map of current that starts fluorescent tube immediately, because the filament of fluorescent tube does not need the program of process preheating earlier, directly cold start-up with the high pressure bombarding cathode, the excessive situation that easily causes the fluorescent tube melanism of voltage is an infringement greatly to lamp tube service life.
Please refer to Figure 11, voltage and map of current for preheating of known frequency conversion fluorescent tube and startup method, the filament of fluorescent tube adds that by frequency changer circuit the surging device improves excessive voltage and electric current that the startup fluorescent tube causes, but electronic component can wear out because repeatedly use, the asynchronism(-nization) that causes each fluorescent tube to start.
Please refer to Figure 12, be the voltage and the map of current of first kind of fluorescent tube preheating disclosed in this invention and startup method, can improve and start excessive voltage and the electric current that fluorescent tube causes, through the pipeline start up by preheating of two-part and start fluorescent tube in the given time.Therefore do not have because the aging situation that causes startup fluorescent tube asynchronism(-nization) each time of electronic component.
Fluorescent tube preheating disclosed in this invention and startup method are to realize the frequency converting and preheating device with software mode, its characteristics be can facilitating electronic circuit assembly, change or adjust easily, its filament also visual fluorescent tube the startup kenel and take different warm-up time.Therefore, can reduce fluorescent tube melanism and then prolonging lamp tube useful life.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (16)
1. fluorescent tube preheating starting method, the frequency that this method is exported at least one pulse drives at least one switching device shifter, and makes a resonance device that links this switching device shifter produce a magnitude of voltage in a fluorescent tube, comes preheating whereby and lights this fluorescent tube, it is characterized in that, include the following step:
Set an original frequency, one first setpoint frequency, one second setpoint frequency, a setting-up time and one first termination time value, wherein this first setpoint frequency is less than this second setpoint frequency;
Adjust the frequency of this pulse with this original frequency;
Begin to improve gradually the frequency of this pulse from this original frequency;
When the frequency of this pulse equals this first setpoint frequency, in this setting-up time, keep the frequency of this pulse; And
When the frequency of this pulse equals this second setpoint frequency, the frequency of fixing this pulse;
Wherein, this method also comprises:
Obtain at the beginning with this original frequency adjust this pulse frequency first start-up time value;
Timing is worth this first start-up time; And
When this first start-up time value equal this during value first termination time, be this second setpoint frequency with the fixed-frequency of this pulse.
2. fluorescent tube preheating starting method according to claim 1 is characterized in that this resonance device contains a resonance frequency, and this resonance frequency is lower than this second setpoint frequency.
3. fluorescent tube preheating starting method, the frequency that this method is exported at least one pulse drives at least one switching device shifter, and makes a resonance device that links this switching device shifter produce a magnitude of voltage in a fluorescent tube, comes preheating whereby and lights this fluorescent tube, it is characterized in that, include the following step:
Set a reference table, one first preset frequency, one second preset frequency, a scheduled time and one second termination time value, wherein this first preset frequency is less than this second preset frequency;
Compare this reference table with this magnitude of voltage, obtain a reference frequency:
This pulse is adjusted into this reference frequency;
When the frequency of this pulse equals this first preset frequency, in this scheduled time, keep the frequency of this pulse; And
When the frequency of this pulse equals this second preset frequency, the frequency of fixing this pulse;
Wherein, this method also comprises:
Obtain at the beginning this pulse is adjusted into this reference frequency second start-up time value;
Timing is worth this second start-up time; And
When this second start-up time value equal this during value second termination time, this pulse is fixed as this second preset frequency.
4. fluorescent tube preheating starting method according to claim 3 is characterized in that, this reference table stores corresponding respectively this reference frequency of this magnitude of voltage.
5. fluorescent tube preheating starting method according to claim 3 is characterized in that this resonance device contains a resonance frequency, and this resonance frequency is lower than this second preset frequency.
6. fluorescent tube pipeline start up by preheating device, the frequency of exporting at least one pulse drives at least one switching device shifter, and makes a resonance device that links this switching device shifter produce a magnitude of voltage in a fluorescent tube, comes preheating whereby and lights this fluorescent tube, it is characterized in that, includes:
One counting module is used for counting an original frequency;
One pulse adjusting module is adjusted the frequency of this pulse with this original frequency;
One first checks module, is used for confirming that the frequency of this pulse is one first setpoint frequency or one second setpoint frequency, sends corresponding one first signal or a secondary signal; And
One first limiting module in a setting-up time, is kept the frequency of this pulse or the frequency of fixing this pulse according to this secondary signal according to this first signal.
7. fluorescent tube pipeline start up by preheating device according to claim 6 is characterized in that, also includes:
One first obtains module, be used for obtaining at the beginning with this this pulse frequency of original frequency modulation first start-up time value;
One first timing module is used for timing this of value first start-up time; And
One first lights module, comprises one first termination time value, be used for confirming when this first start-up time value equaled for one first termination time during value, with the fixed-frequency of this pulse in this second setpoint frequency.
8. fluorescent tube pipeline start up by preheating device according to claim 6 is characterized in that, this first inspection module is used for setting this first setpoint frequency and this second setpoint frequency, and this first setpoint frequency is less than this second setpoint frequency.
9. fluorescent tube pipeline start up by preheating device according to claim 6 is characterized in that this resonance device contains a resonance frequency, and this resonance frequency is lower than this second setpoint frequency.
10. fluorescent tube pipeline start up by preheating device, the frequency of exporting at least one pulse drives at least one switching device shifter, and makes a resonance device that links this switching device shifter produce a magnitude of voltage in a fluorescent tube, comes preheating whereby and lights this fluorescent tube, it is characterized in that, include:
One variable-frequency pulse module is used for adjusting mutually the frequency of respectively this pulse that should magnitude of voltage;
One second checks module, is used for confirming that the frequency of this pulse is one first preset frequency or one second preset frequency, sends corresponding one the 3rd signal or one the 4th signal; And
One second limiting module in a scheduled time, is kept the frequency of this pulse or the frequency of fixing this pulse according to the 4th signal according to the 3rd signal.
11. fluorescent tube pipeline start up by preheating device according to claim 10 is characterized in that this variable-frequency pulse module contains a reference table, this reference table stores a corresponding respectively reference frequency of this magnitude of voltage.
12. fluorescent tube pipeline start up by preheating device according to claim 11 is characterized in that this variable-frequency pulse module includes a comparing unit, is used for this magnitude of voltage is compared this reference table, to obtain this reference frequency.
13. fluorescent tube pipeline start up by preheating device according to claim 11 is characterized in that, also includes:
One second obtains module, be used for obtaining at the beginning this pulse is adjusted into a reference frequency second start-up time value;
One second timing module is used for timing this of value second start-up time; And
One second lights module, contains one second termination time value, be used for confirming when this second start-up time value equal this during value second termination time, be this second preset frequency with the fixed-frequency of this pulse.
14. fluorescent tube pipeline start up by preheating device according to claim 10 is characterized in that, also includes a Voltage Feedback module, is used for capturing at least one magnitude of voltage of this fluorescent tube end.
15. fluorescent tube pipeline start up by preheating device according to claim 10 is characterized in that, this second inspection module is used for setting this first preset frequency and this second preset frequency, and this first preset frequency is less than this second preset frequency.
16. fluorescent tube pipeline start up by preheating device according to claim 10 is characterized in that this resonance device contains a resonance frequency, this resonance frequency is lower than this second preset frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005101171520A CN1960591B (en) | 2005-11-01 | 2005-11-01 | Method and apparatus for warming-up and starting up luminous tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005101171520A CN1960591B (en) | 2005-11-01 | 2005-11-01 | Method and apparatus for warming-up and starting up luminous tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1960591A CN1960591A (en) | 2007-05-09 |
| CN1960591B true CN1960591B (en) | 2011-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005101171520A Active CN1960591B (en) | 2005-11-01 | 2005-11-01 | Method and apparatus for warming-up and starting up luminous tube |
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| Country | Link |
|---|---|
| CN (1) | CN1960591B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5736817A (en) * | 1995-09-19 | 1998-04-07 | Beacon Light Products, Inc. | Preheating and starting circuit and method for a fluorescent lamp |
| CN2313356Y (en) * | 1997-07-17 | 1999-04-07 | 创鸿科技股份有限公司 | Lamp-tube current-limiting device for soft-starting |
-
2005
- 2005-11-01 CN CN2005101171520A patent/CN1960591B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5736817A (en) * | 1995-09-19 | 1998-04-07 | Beacon Light Products, Inc. | Preheating and starting circuit and method for a fluorescent lamp |
| CN2313356Y (en) * | 1997-07-17 | 1999-04-07 | 创鸿科技股份有限公司 | Lamp-tube current-limiting device for soft-starting |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1960591A (en) | 2007-05-09 |
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