CN101965089A - Electronic stabilizing device - Google Patents

Electronic stabilizing device Download PDF

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Publication number
CN101965089A
CN101965089A CN2009101600859A CN200910160085A CN101965089A CN 101965089 A CN101965089 A CN 101965089A CN 2009101600859 A CN2009101600859 A CN 2009101600859A CN 200910160085 A CN200910160085 A CN 200910160085A CN 101965089 A CN101965089 A CN 101965089A
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China
Prior art keywords
stabilizer
electrically connects
resistance
input
electric capacity
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CN2009101600859A
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Chinese (zh)
Inventor
陈清标
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inergy Tech Inc
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inergy Tech Inc
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Priority to CN2009101600859A priority Critical patent/CN101965089A/en
Publication of CN101965089A publication Critical patent/CN101965089A/en
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Abstract

The invention relates to an electronic stabilizing device which comprises a stabilizer and a frequency sweep preheat circuit. The stabilizer comprises a first input end, a second input end, an output end and a power supply module, wherein the output end is electrically connected with a fluorescent lamp and the power supply module is used for supplying operating voltage to the first input end. The frequency sweep preheat circuit also comprises a boosting component, an impedance component, a switch and a frequency selection circuit, wherein the boosting component comprises a first end and a second end, the first end is electrically connected with the first input end of the stabilizer, the second end is connected with one end of the impedance component, and the other end of the impedance component is grounded; the switch comprises an input end, an output end and a reference voltage input end, wherein the input end is electrically connected with the common contact of the boosting component and the impedance component, the output end is connected with the frequency selection circuit, and the reference voltage input end is electrically connected with the first end of the boosting component and the first input end of the stabilizer; and the frequency selection circuit is connected with the first input end and the second input end of the stabilizer.

Description

The electronics stabilizer
Technical field
The present invention relates to a kind of electronics stabilizer, particularly relate to a kind of light fixture stabilizer.
Background technology
Because fluorescent lamp, has higher luminous efficiency, low lamp hole temperature and long advantages such as useful life compared to incandescent lamp bulb.Therefore, fluorescent lamp is promptly replaced incandescent lamp bulb, and then becomes the main flow of present industry and domestic lighting.
Generally speaking, be full of mist in the fluorescent tube by low-pressure inert gas such as low-pressure mercury vapour and argon gas, krypton gas.The fluorescent tube inner tubal wall is coated with fluorescent material, and is provided with the heater winding of being made by tungsten at the two ends of fluorescent tube.Behind power connection, make when filament is heated to sufficient temp generation to be discharged electronics, and electronics can become plasma to gas in the pipe, and make intraductal electric current strengthen.In addition, when the voltage between the filament of two ends surpassed certain value, fluorescent tube then began to produce discharge, caused that mercury vapour clashes into mutually in the electronics of high-speed motion and the pipe, dissociate more electronics and ion produce the ultraviolet ray based on the 253.7nm and the 185nm wavelength of mercury vapor.At this moment, the phosphorus of fluorescent tube inner surface will absorb ultraviolet ray, and discharge the visible light of low wavelength simultaneously.
Yet, because presenting to bear, fluorescent lamp increases strip resistance (Negative IncrementalResistance) characteristic: after more multiple current flows to fluorescent tube, make when more gases are ionized, conducting resistance in the pipe will constantly reduce, and so just can making more, multiple current flows in the fluorescent tube.Therefore, need come Control current to fixing horizontal value, to reach best discharge condition by the electronics stabilizer.
The general mode that starts fluorescent lamp can be pipeline start up by preheating.Pipeline start up by preheating is to give filament pre-heating earlier or heat, and its greatest feature alleviates the fluorescent tube melanism for not being subjected to the go out influence of number of times of fluorescent tube switching point, and then the life-span of prolonging lamp tube, and its average life span can be promoted to 8,000 times to 20,000 hours.
Yet the general frequency sweep preheat circuit framework of tradition is tending towards complicated, and because its internal capacitance discharges and recharges overlong time, so to design be of short duration or when repeating to open and close fluorescent lamp at short notice when warm-up time, can't realize the frequency sweep preheat function.Therefore, how to simplify and improve the frequency sweep preheat circuit, reduce the element cost to save, and keep under the frequency sweep preheat function, just become an important problem.
Summary of the invention
The objective of the invention is to, overcome the defective that existing electronics stabilizer exists, and a kind of electronics stabilizer of new structure is provided, technical problem to be solved is to make its complexity that can improve light fixture preheat circuit framework, and makes more fast and stable of frequency sweep preheat function.
The object of the invention to solve the technical problems realizes by the following technical solutions.According to a kind of electronics stabilizer that the present invention proposes, it comprises a stabilizer and a frequency sweep preheat circuit; This stabilizer comprises a first input end, one second input and an output, and the output of this stabilizer electrically connects a fluorescent lamp, and this stabilizer also comprises a power module, in order to provide an operating voltage to this first input end.This frequency sweep preheat circuit comprises: the element that boosts, comprise one first end and one second end, and first end of this element that boosts electrically connects the first input end of this stabilizer; One impedance component comprises one first end and one second end, and first end of this impedance original paper electrically connects second end of this element that boosts; One switch, comprise an input, an output and a reference voltage input terminal, the input of this switch electrically connects second end and this impedor first end of this element that boosts, and this reference voltage input terminal electrically connects first end of this element that boosts and the first input end of this stabilizer; And a frequency selective network, electrically connect the output of this switch and the first input end and second input of this stabilizer.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid electronics stabilizer, wherein said switch also comprises: a NPN two-carrier junction transistor (transistor or be called electric crystal); One diode comprises P end and N end, and this N end connects a base stage of this NPN two-carrier junction transistor; And a base resistance, comprising one first end and one second end, first end of this base resistance electrically connects the P end of this diode, and second end of this base resistance electrically connects second end of this impedor first end and this element that boosts.
Aforesaid electronics stabilizer, wherein said frequency selective network comprises: an electric capacity comprises one first end and one second end; One first resistance comprises one first end and one second end, and first end of this first resistance electrically connects first end of this electric capacity, and second end of this first resistance electrically connects an emitter-base bandgap grading of this NPN two-carrier junction transistor; And one second resistance, comprise one first end and one second end, first end of this second resistance electrically connects a collection utmost point of this NPN two-carrier junction transistor and the first input end of this stabilizer, and second end of this second resistance electrically connects first end of this electric capacity and second input of this stabilizer.
Aforesaid electronics stabilizer, wherein said switch also comprises: a n channel metal oxide semiconductor transistor; And a diode, comprising P end and N end, this P end electrically connects second end of this impedor first end and this element that boosts, the transistorized grid of this N end this n channel metal oxide semiconductor of electric connection.
Aforesaid electronics stabilizer, wherein said frequency selective network comprises: an electric capacity comprises one first end and one second end; One first resistance comprises one first end and one second end, and first end of this first resistance electrically connects first end of this electric capacity, and second end of this first resistance electrically connects the transistorized one source pole of this n channel metal oxide semiconductor; And one second resistance, comprise one first end and one second end, first end of this second resistance electrically connects the first input end of the transistorized drain of this n channel metal oxide semiconductor and this stabilizer, and second end of this second resistance electrically connects first end of this electric capacity and second input of this stabilizer.
Aforesaid electronics stabilizer, the wherein said element that boosts comprises an electric capacity.
Aforesaid electronics stabilizer, wherein said impedance component comprises a resistance.
The present invention compared with prior art has tangible advantage and beneficial effect.As known from the above,,, provide a kind of electronics stabilizer, comprise stabilizer and frequency sweep preheat circuit according to one embodiment of the invention for achieving the above object.Stabilizer comprises a first input end, one second input and an output.The output of stabilizer electrically connects fluorescent lamp, and stabilizer also comprises power module, in order to provide an operating voltage to first input end.The frequency sweep preheat circuit also comprises boost element, an impedance component, a switch and a frequency selective network.The element that boosts comprises one first end and one second end, and wherein first end and second end are electrically connected to the first input end and an impedor end of stabilizer respectively, and the impedor other end is ground connection then.In addition, switch comprises an input, an output and a reference voltage input terminal, wherein input electrically connects boost element and impedor common joint, output and frequency selective network join, and reference voltage input terminal then electrically connects boost first end of element and the first input end of stabilizer simultaneously.And frequency selective network is electrically connected to the first input end and second input of stabilizer.
By technique scheme, electronics stabilizer of the present invention has following advantage and beneficial effect at least: electronics stabilizer of the present invention not only can significantly reduce the use of electronic component, reaching the purpose of frequency sweep preheating, and more can promote its usefulness and stability simultaneously.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the functional block diagram of the stabilizer of an embodiment of the present invention.
Fig. 2 A is the circuit diagram of a kind of frequency sweep preheat circuit of one embodiment of the invention.
Fig. 2 B is the circuit diagram of the another kind of frequency sweep preheat circuit of one embodiment of the invention.
100: electronics stabilizer 200: stabilizer
210: power module 300: the frequency sweep preheat circuit
310: element 312 boosts: electric capacity
320: impedance component 322: resistance
330: switch 332a:NPN two-carrier junction transistor
332b:N passage metal-oxide semiconductor transistor 334: diode
336: base resistance 340: frequency selective network
342: 344: the first resistance of electric capacity
Resistance 400 in 346: the second: fluorescent lamp
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, its embodiment of electronics stabilizer, structure, feature and effect thereof that foundation the present invention is proposed are elaborated.
In order to make narration of the present invention more detailed and complete, can consult the appended various embodiment of graphic and the following stated, graphic in identical number represent same or analogous element.
Seeing also shown in Figure 1ly, is the functional block diagram of light fixture stabilizer according to an embodiment of the present invention.As shown in the figure, electronics stabilizer 100 of the present invention comprises stabilizer 200 and frequency sweep preheat circuit 300.
Above-mentioned stabilizer 200 comprises a first input end, one second input and an output.The output of stabilizer 200 electrically connects fluorescent lamp 400, and stabilizer 200 also comprises power module 210, in order to provide an operating voltage to first input end.
Above-mentioned frequency sweep preheat circuit 300 comprises boost element 310, an impedance component 320, a switch 330 and a frequency selective network 340.
This element 310 that boosts comprises one first end and one second end, and wherein first end and second end are electrically connected to the first input end of stabilizer 200 and an end of impedance component 320 respectively, and the other end of impedance component 320 is ground connection then.In addition, switch 330 comprises an input, an output and a reference voltage input terminal, wherein input electrically connects the common joint of boost element 310 and impedance component 320, output and frequency selective network 340 join, and reference voltage input terminal then electrically connects boost first end of element 310 and the first input end of stabilizer 200 simultaneously.And frequency selective network 340 electrically connects the first input end and second input of stabilizer 200.
See also Fig. 2 A, it is a kind of according to an embodiment of the invention circuit diagram of frequency sweep preheat circuit.As shown in the figure, the element 310 that boosts comprises an electric capacity 312 at least, and impedance component 320 then comprises a resistance 322 at least.In addition, switch 330 is made up of a NPN two-carrier junction transistor 332a, a diode 334 and a base resistance 336, and wherein diode 334 comprises P end and N end, and the N end connects the base stage of NPN two-carrier junction transistor 332a.Base resistance 336 comprises one first end and one second end, and wherein first end electrically connects the P end of diode, and second end then electrically connects the common joint place of the impedance component 312 and the element 322 that boosts.
Frequency selective network 340 comprises electric capacity 342, first resistance 344 and second resistance 346 at least, and wherein electric capacity 342 comprises one first end and one second end.First end of first resistance 344 and second end electrically connect first end of electric capacity 342 and the emitter-base bandgap grading of NPN two-carrier junction transistor 332a respectively, and second end of electric capacity 342 is ground connection then.In addition, first end of second resistance 346 electrically connects the collection utmost point of NPN two-carrier junction transistor 332a and the first input end of stabilizer 200, and second end of second resistance 346 then electrically connects first end of electric capacity 342 and second input of stabilizer 200.
Particularly, when power module 210 starts, will provide an operating voltage to first input end, so that electric capacity 312 is charged.Then, electric capacity 312 produces coupled voltages thereupon, to produce the input voltage of switch 330, makes forward conducting of diode 334, and then opens NPN two-carrier junction transistor 332a.And, provide one first concussion frequency to stabilizer 200 by frequency selective network 340.At this moment, what the equivalent resistance of frequency selective network 340 then was first resistance 344 with the second electricity group 346 is in parallel, and its equivalent resistance will diminish, and the equivalent capacity of frequency selective network 340 is an electric capacity 342.Yet,, will be increased to immediately between 90KHz and the 110KHz so it shakes frequency, thereby carry out preheating because the first concussion frequency is the inverse of equivalent resistance and equivalent capacity product.In addition, base resistance 334 is in order to input voltage is converted to electric current, makes the operating state of NPN two-carrier junction transistor 332a more stable.
When electric capacity 312 voltages were filled to a stable voltage gradually, promptly electronics stabilizer 100 was finished the frequency sweep preheat function and will be entered stable state, and electric capacity 312 forms open circuit, and produced concussion voltage in the input of switch 330.Yet, can intercept concussion voltage by diode 334, to avoid producing misoperation and to guarantee that NPN two-carrier junction transistor 332a is maintained at closed condition.And, provide one second concussion frequency to stabilizer 200 by frequency selective network 340.At this moment, the equivalent resistance of frequency selective network 340 and equivalent capacity are respectively second resistance 346 and electric capacity 342.Yet,,, and finish filament frequency sweep preheat function so its concussion frequency will be reduced to the operating frequency of stabilizer 200 gradually by high frequency because the second concussion frequency is the inverse for equivalent resistance and equivalent capacity product.Generally speaking, the operating frequency of stabilizer 200 system is designed to 45KHz to 50KHz, and frequency sweep is then determined by resistance 322 and electric capacity 312 warm-up time.
In addition, because electric capacity 312 is electrically connected to the first input end of stabilizer 200, therefore when closing fluorescent lamp 400, the voltage level of first input end is reduced to 0 volt immediately.And because the other end ground connection of resistance 322, this moment, electric capacity 312 can be considered two terminal shortcircuits, and then discharged its store charge apace.Thus, cross to of short duration when designed warm-up time, or when repeating to open and close fluorescent lamp 400 at short notice, but electric capacity 312 fast charging and dischargings, to keep the frequency sweep preheat function.
See also shown in Fig. 2 B, it is the circuit diagram of another kind of according to an embodiment of the invention frequency sweep preheat circuit.As shown in the figure, the element 310 that boosts comprises an electric capacity 312 at least, and impedance component then comprises a resistance 322 at least.In addition, switch 330 is made up of a n channel metal oxide semiconductor transistor 332b and a diode 334, and wherein diode 334 comprises P end and N end.The P end electrically connects the common joint place of the impedance component 320 and the element 310 that boosts, and the N end electrically connects the grid of n channel metal oxide semiconductor transistor 332b.
Frequency selective network 340 comprises electric capacity 342, first resistance 344 and second resistance 346 at least, wherein electric capacity 342 comprises one first end and one second end, the second end ground connection of electric capacity 342, and first end of first resistance 344 and second end electrically connect first end of electric capacity 342 and the source electrode of n channel metal oxide semiconductor transistor 332b respectively.In addition, second resistance 346 comprises one first end and one second end, first end of second resistance 346 electrically connects the drain of n channel metal oxide semiconductor transistor 332b and the first input end of stabilizer 200, and second end of second resistance 346 then electrically connects first end of electric capacity 342 and second input of stabilizer 200.
More particularly, when power module 210 starts, will provide an operating voltage to first input end, so that electric capacity 312 is charged.Then, electric capacity 312 will produce coupled voltages thereupon, to produce the input voltage of switch 330, make forward conducting of diode 334, and then open n channel metal oxide semiconductor transistor 332b.And, and provide one first concussion frequency to stabilizer 200 by frequency selective network 340.At this moment, what the equivalent resistance of frequency selective network 340 was first resistance 344 with the second electricity group 346 is in parallel, and its equivalent resistance also will diminish, and the equivalent capacity of frequency selective network 340 then is an electric capacity 342.So, the concussion frequency of frequency selective network 340 be increased between 90KHz and the 110KHz.
And when electric capacity 312 voltages were filled to a stable voltage gradually, promptly electronics stabilizer 100 was finished the frequency sweep preheat function and will be entered stable state, and electric capacity 312 forms open circuit, and produced concussion voltage in the input of switch 330.Yet, can intercept concussion voltage by diode 334, to avoid producing misoperation and to guarantee that n channel metal oxide semiconductor transistor 332b is maintained at closed condition.And, provide one first concussion frequency to stabilizer 200 by frequency selective network 340.At this moment, the equivalent resistance of frequency selective network 340 and equivalent capacity are respectively the second electricity group 346 and electric capacity 342, and then make its concussion frequency reduce to the operating frequency of stabilizer 200 gradually by high frequency, to finish filament frequency sweep preheat function.Generally speaking, the operating frequency of stabilizer 200 is designed to 45KHz to 50KHz, and frequency sweep is then determined by resistance 312 and electric capacity 322 warm-up time.
In addition, because electric capacity 312 is electrically connected to the first input end of stabilizer 200, therefore when closing fluorescent lamp 400, the voltage level of first input end is reduced to 0 volt immediately.And because the other end ground connection of resistance 322, this moment, electric capacity 312 can be considered two terminal shortcircuits, and then discharged its store charge apace.Thus, cross to of short duration when designed warm-up time, or when repeating to open and close fluorescent lamp 400 at short notice, but electric capacity 312 fast charging and dischargings, to keep the frequency sweep preheat function.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.

Claims (7)

1. electronics stabilizer is characterized in that it comprises:
One stabilizer comprises a first input end, one second input and an output, and the output of this stabilizer electrically connects a fluorescent lamp, and this stabilizer also comprises a power module, in order to provide an operating voltage to this first input end; And
One frequency sweep preheat circuit comprises:
One element that boosts comprises one first end and one second end, and first end of this element that boosts electrically connects the first input end of this stabilizer;
One impedance component comprises one first end and one second end, and first end of this impedance original paper electrically connects second end of this element that boosts;
One switch, comprise an input, an output and a reference voltage input terminal, the input of this switch electrically connects second end and this impedor first end of this element that boosts, and this reference voltage input terminal electrically connects first end of this element that boosts and the first input end of this stabilizer; And
One frequency selective network electrically connects the output of this switch and the first input end and second input of this stabilizer.
2. electronics stabilizer according to claim 1 is characterized in that wherein said switch also comprises:
One NPN two-carrier junction transistor;
One diode comprises P end and N end, and this N end connects a base stage of this NPN two-carrier junction transistor; And
One base resistance comprises one first end and one second end, and first end of this base resistance electrically connects the P end of this diode, and second end of this base resistance electrically connects second end of this impedor first end and this element that boosts.
3. electronics stabilizer according to claim 2 is characterized in that wherein said frequency selective network comprises:
One electric capacity comprises one first end and one second end;
One first resistance comprises one first end and one second end, and first end of this first resistance electrically connects first end of this electric capacity, and second end of this first resistance electrically connects an emitter-base bandgap grading of this NPN two-carrier junction transistor; And
One second resistance, comprise one first end and one second end, first end of this second resistance electrically connects a collection utmost point of this NPN two-carrier junction transistor and the first input end of this stabilizer, and second end of this second resistance electrically connects first end of this electric capacity and second input of this stabilizer.
4. electronics stabilizer according to claim 1 is characterized in that wherein said switch also comprises:
One n channel metal oxide semiconductor transistor; And
One diode comprises P end and N end, and this P end electrically connects second end of this impedor first end and this element that boosts, and this N end electrically connects the transistorized grid of this n channel metal oxide semiconductor.
5. electronics stabilizer according to claim 4 is characterized in that wherein said frequency selective network comprises:
One electric capacity comprises one first end and one second end;
One first resistance comprises one first end and one second end, and first end of this first resistance electrically connects first end of this electric capacity, and second end of this first resistance electrically connects the transistorized one source pole of this n channel metal oxide semiconductor; And
One second resistance, comprise one first end and one second end, first end of this second resistance electrically connects the first input end of the transistorized drain of this n channel metal oxide semiconductor and this stabilizer, and second end of this second resistance electrically connects first end of this electric capacity and second input of this stabilizer.
6. electronics stabilizer according to claim 1 is characterized in that the wherein said element that boosts comprises an electric capacity.
7. electronics stabilizer according to claim 1 is characterized in that wherein said impedance component comprises a resistance.
CN2009101600859A 2009-07-21 2009-07-21 Electronic stabilizing device Pending CN101965089A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009101600859A CN101965089A (en) 2009-07-21 2009-07-21 Electronic stabilizing device

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Application Number Priority Date Filing Date Title
CN2009101600859A CN101965089A (en) 2009-07-21 2009-07-21 Electronic stabilizing device

Publications (1)

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CN101965089A true CN101965089A (en) 2011-02-02

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Application Number Title Priority Date Filing Date
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102933009A (en) * 2011-08-08 2013-02-13 天网电子股份有限公司 Electronic ballast capable of self-protecting at end of life or before premature death of fluorescent lamp tube

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102933009A (en) * 2011-08-08 2013-02-13 天网电子股份有限公司 Electronic ballast capable of self-protecting at end of life or before premature death of fluorescent lamp tube
CN102933009B (en) * 2011-08-08 2014-12-24 天网电子股份有限公司 Electronic ballast capable of self-protecting at end of life or before premature death of fluorescent lamp tube

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