CN105792490A - Electronic ballast and driving method therefor, and metal halogen lamp system - Google Patents
Electronic ballast and driving method therefor, and metal halogen lamp system Download PDFInfo
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- CN105792490A CN105792490A CN201410828606.4A CN201410828606A CN105792490A CN 105792490 A CN105792490 A CN 105792490A CN 201410828606 A CN201410828606 A CN 201410828606A CN 105792490 A CN105792490 A CN 105792490A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
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Abstract
The invention provides a metal halogen lamp electronic ballast and a driving method therefor, and a metal halogen lamp system. The metal halogen lamp electronic ballast comprises two switching tubes (Q2, Q3), a resonant capacitor (C19) and two blocking capacitors (C20, C21), wherein the two blocking capacitors (C20, C21) are connected in parallel, and the capacities of the two blocking capacitors are variable sharply; the first ends of the first blocking capacitor (C20) and the second blocking capacitor (C21) are connected to the second end of a load; the first end of a choke inductor (L3) is connected with the second electrode of the first switching tube (Q2) and the first electrode of the second switching tube (Q3) while the second end of the choke inductor is connected to the load; the resonant capacitor (C19) is connected with the load in parallel; and the switching tubes (Q2, Q3) are conducted and cut-off through the control electrodes thereof respectively. The electronic ballast provided by the invention can effectively prevent sound oscillation after the metal halogen lamp enters a steady state; the electronic ballast is high in stability; and the metal halogen lamp system including the electronic ballast is high in product consistency.
Description
Technical field
The present invention relates to lighting technical field, particularly relate to a kind of electric ballast and driving method thereof, include the Metal halogen lamp system of this electric ballast.
Background technology
Currently, Metal halogen lamp is generally adopted low-frequency current and directly drives to suppress sound oscillation, also have and adopt high frequency electric directly to drive, but there are two kinds of defects in this type of drive: one be the electric arc tube of Metal halogen lamp catch fire enter normal operation afterwards before light can glimmer, extremely serious shake can be produced during degree height, send the sound, even can damage electric arc tube；Two is that after entering rated power, light still glimmers brokenly, namely sometimes stable, sometimes unstable.Here it is existing skill adopts high frequency electric directly drive the typical case's sign producing sound oscillation during Metal halogen lamp.Adopt high frequency electric directly to drive the half bridge switching circuit that the electric ballast (can be described as again Metal halogen lamp high frequency ballast) of Metal halogen lamp has successfully adopted discrete component to constitute, wherein adopt big capacity electrolyte capacitor to serve as capacitance to import the problem that the methods such as low-frequency current overcome Metal halogen lamp easily to produce sound oscillation under high frequency electric.But, the half bridge switching circuit that discrete component is constituted there is also defect, as Frequency scaling algorithm is relatively big, is difficult to take into account overcome sound oscillation and Frequency Band Selection: frequency range as selected by discrete component is confined to 20-30KHz simultaneously, but in order to overcome sound oscillation, frequency often enters audio frequency lower than 20KHz；Or it is higher than 30KHz and violates the industry routine that 30-40KHz is the special frequency range of infrared remote control；It addition, discrete component electric parameter discreteness is relatively larger, the magnet ring such as the core devices for vibrating is difficult to and other components and parts collaborative works, and the power height not only resulting in a collection of product is different, even affects circuit and overcomes the effect of sound oscillation.
In prior art, some metal halogen lamp electric ballast employs integrated chip EV0108 and peripheral circuit drives Metal halogen lamp, as it is shown in figure 1, this circuit have employed the both arms design of a upper capacitance C21 ', a lower capacitance C20.This circuit controls CMOS the first switching tube Q1 and CMOS second switch pipe Q2 opening and closing respectively by integrated chip EV0108 and upper capacitance C21 ' and the lower capacitance C20 mode carrying out discharge and recharge is driven Metal halogen lamp, but this circuit yet suffers from unstable and shake phenomenon, it is impossible to be effectively reduced sound oscillation.
Summary of the invention
In order to overcome above-mentioned technological deficiency, the present invention proposes a kind of electric ballast, it achieves double time constant charge and discharge control, Metal halogen lamp can be effectively prevented enter and produce sound oscillation after steady statue, and the stability of this metal halogen lamp electric ballast is high, the Metal halogen lamp system product concordance that includes this metal halogen lamp electric ballast is good.
For above-mentioned purpose, the present invention provides a kind of electric ballast, including the first switching tube, second switch pipe, choke induction, resonant capacitance, the first capacitance and the second capacitance, wherein,
Described first capacitance and the second capacitance are connected in parallel, and the first end of the first capacitance and the second capacitance is connected to the second end of load, and the second end ground connection of the first capacitance and the second capacitance；
First pole of the first end of choke induction and the second pole of the first switching tube, second switch pipe connects, and the second end is connected on the first end of load；
Resonant capacitance and load are connected in parallel；And
The capacity difference several times of the first capacitance and the second capacitance.
Wherein, the capacity of first capacitance the second capacitance differs 4-5 times.
Wherein, the capacity of the first capacitance is 33-100nf, and the capacity of the second capacitance is 150-470nf.
Described electric ballast, also includes integrated chip EV0108, wherein:
The HO pin of EV0108 is connected by the control pole of the first resistance and the first switching tube；And
The LO pin of EV0108 is connected with the control pole of second switch pipe by the second resistance.
Wherein, the HO pin of integrated chip EV0108, LO pin output duty cycle are that the square wave of 50% is to drive conducting and the cut-off of the first switching tube and second switch pipe respectively.
Described electric ballast also includes prime mu balanced circuit, and this prime mu balanced circuit includes electrolytic capacitor filter, the 4th resistance, Zener diode, low-voltage electrolysis electric capacity, wherein,
One end of 4th resistance connects the positive pole of electrolytic capacitor filter, and
After DC voltage on the positive pole of electrochemical capacitor is again filtered by Zener diode voltage stabilizing, low-voltage electrolysis electric capacity after the 4th resistance blood pressure lowering, to the running voltage that integrated chip EV0108 input is stable.
The present invention also provides for a kind of Metal halogen lamp system with described electric ballast, including shell, Metal halogen lamp and described electric ballast, wherein,
Shell includes upper cover and lower cover, and top cap is connected to lamp holder, lower cover Built-in light base device；
Metal halogen lamp top is provided with mates with lamp base device it is thus possible to be installed to the lamp holder of shell；
Described electric ballast is arranged in the upper cover of shell.
The present invention also provides for a kind of driving method to described electric ballast, including:
Conducting and the cut-off of the first switching tube and second switch pipe is driven respectively with the square-wave signal of fixed frequency；And
When the first switching tube conducting, the cut-off of second switch pipe, by choke induction to load supplying, and the first capacitance and the second capacitance are charged；When the first switching tube cut-off, the conducting of second switch pipe, the first capacitance and the second capacitance discharge so that load to be powered.
Wherein, the HO pin using integrated chip EV0108 produces conducting and the cut-off of the square wave drive the first switching tube (Q2) of fixed frequency；And
The LO pin using integrated chip EV0108 produces conducting and the cut-off of square wave drive second switch pipe (Q2) of fixed frequency.
Wherein, described fixed frequency is 29.5Hz.
The electric ballast of present invention design and driving method, Metal halogen lamp system, can effectively overcome the sound oscillation produced in high-frequency drive Metal halogen lamp process, mate the rated input power of its Metal halogen lamp driven, lamp power including the Metal halogen lamp of this electric ballast is also essentially identical, therefore, the concordance of Metal halogen lamp system product is better.
Accompanying drawing explanation
In order to be illustrated more clearly that technical scheme, preferred embodiments of the present invention will be described below in conjunction with accompanying drawing, wherein:
Fig. 1 is the circuit structure schematic diagram of the electric ballast of prior art；
Fig. 2 is the circuit structure schematic diagram of metal halogen lamp electric ballast according to embodiments of the present invention；And
Fig. 3 is the schematic diagram of the Metal halogen lamp system including the electric ballast shown in Fig. 2 according to embodiments of the present invention.
Detailed description of the invention
Hereinafter, by preferred embodiments of the present invention will be described in detail with reference to the annexed drawings.
For the Metal halogen lamp as gases at high pressure arc discharge lamp, when adopting high frequency electric that it is directly driven, it still complies with the Basic Mechanism of the negative C-V characteristic of arc discharge lamp: the high frequency electric namely importing halogen electric arc tube still can control pipe pressure well, and, sound oscillation all can along with the fluctuation of pipe pressure when occurring, and pipe pressure fluctuation is more big, the situation of light output jitter is more serious.It is found through experiments, as long as the high frequency electric imported controls pipe pressure well so that it is after steadily rising after catching fire and reaching rated power, big fluctuation no longer occurs, for instance fluctuating margin is 10-3V, then the output characteristics of electric arc tube light just drives with low-frequency current does not have difference.Based on this, the present invention adopts the lower partiting dc capacitor of two big low capacity difference several times of parallel connection to replace the both arms design of a upper capacitance of the prior art as shown in Figure 1 and a lower capacitance, the electric current realizing double time constant charge and discharge size several times controls Metal halogen lamp to suppress the sound oscillation of Metal halogen lamp, stablizes electric arc tube pipe pressure, overcomes light output jitter.
Fig. 2 is the circuit structure schematic diagram of metal halogen lamp electric ballast according to embodiments of the present invention.Drive electricity-saving lamp half bridge switching circuit similar with conventional integrated chip (IC), the civil power prime protective tube by connecting with civil power, the bimodulus inductance L1 of electromagnetic compatibility (EMC) control circuit, filter capacitor CX1, after CX2 and varistor RZ, 220V DC voltage (DC) is become after rectifier bridge stack BD rectification, then through by IC/6562, adjust pipe Q1, boost inductance L2, the power factor of the IC/6562 of diode D3 and other components and parts composition adjusts peripheral circuit, not only the power factor that circuit inputs is adjusted to more than 0.99, but also the 220VDC after rectification is risen to 343-420VDC, and the DC voltage remained stable for.Therefore, the power substantially constant that the main functional circuit such as the oscillating circuit relevant to IC/EV0108, switch tube driving circuit, load export after mating with electric arc tube pipe pressure, in electric arc tube output-power fluctuation amplitude during the 8000-12000h life-span within 1.5W.The present invention selects halogen electric arc tube HID to illustrate for load, but the invention is not restricted to this.As in figure 2 it is shown, resonant capacitance C19 is in parallel with the electric arc tube HID as load.
Vibration and switch tube driving circuit are made up of with its peripheral cell electricity-saving lamp application-specific integrated circuit/EV0108.The HO pin (namely pin 1) of IC/EV0108, is connected through the grid G (the control pole hereinafter referred to as upper switching tube) of resistance R15 and upper switching tube Q2；The LO pin (namely pin 15) of IC/EV0108, is connected through the grid G (the control pole hereinafter referred to as lower switching tube) of resistance R16 and lower switching tube Q3.Switching tube can select NPN, positive-negative-positive metal-oxide-semiconductor etc..It will be understood by those skilled in the art that conducting and cut-off that grid G extremely can be controlled above-mentioned switching tube as control.The present embodiment illustrates for metal-oxide-semiconductor in conjunction with accompanying drawing, but any other may be suitable for the present invention by the switching tube controlling extremely to turn on and end.
Power output circuit is by upper switching tube Q2, lower switching tube Q3, choke induction L3, resonant capacitance C19 and two lower capacitance C20, C21 compositions, and two lower capacitance C20, C21 is connected in parallel.Wherein, the upper end (the first end hereinafter referred to as lower capacitance) of two the lower capacitances being connected in parallel is connected with the lower end (becoming the second end of load below) of load, and the lower end (the second end hereinafter referred to as lower capacitance) of two the lower capacitances being connected in parallel is connected to ground；The upper end (becoming the first end of load below) of load is connected with the lower end (the second end hereinafter referred to as choke induction L3) of choke induction L3, and resonant capacitance C19 is in parallel with load；The upper end (the first end hereinafter referred to as choke induction L3) of choke induction L3 is connected with the drain D (becoming the first pole of lower switching tube below) of the source S of upper switching tube (becoming the second pole of upper switching tube below), lower switching tube Q3, and the first pole of the second pole and lower switching tube Q3 of namely going up switching tube Q2 is connected；The drain electrode (the first pole hereinafter referred to as upper switching tube Q2) of upper switching tube Q2 is connected with the positive pole of electrolytic capacitor filter C6, source electrode (the second pole hereinafter referred to as the lower switching tube) ground connection of lower switching tube Q3.
Above-mentioned power output circuit adopts single arm method design, namely, cancel upper capacitance of the prior art (the electric capacity C21 ' in Fig. 1) and line related connects, only retain capacitance (the electric capacity C20 such as Fig. 1), and it is connected in parallel to arrange another lower capacitance, the capacity difference several times of two lower capacitances in parallel, it is preferred to, differ 4-5 times.Can according to the difference of bearing power, the lower capacitance (such as electric capacity C21) of its low capacity can select 33-100nf (nanofarad), and jumbo lower capacitance (such as electric capacity C20) can select 150-470nf.These two lower capacitances can select polyester capacitance.
In circuit work process, circuit connects civil power, and prime rectifier bridge BD starts working, by the power factor adjustment of IC/6562 and periphery circuit and boosting, the HVDC stable by Large Copacity electrolytic capacitor filter C6 output.Circuit of the present invention is connect the positive pole of IC/6562 circuit direct output electrolytic capacitor filter C6 by the resistance R13 of resistance 200K, after again being filtered by 12V Zener diode Z2 voltage stabilizing, low-voltage electrolysis electric capacity C18 after resistance R13 blood pressure lowering, to the 12-13VDC running voltage that main IC/EV0108 input is stable.
IC/EV0108 works at an operating voltage as above, is the square wave of 50% by pin HO, LO (that is, pin 1,15) output duty cycle.Wherein, the high level of pin HO output is that (VB is pump voltage to 0.95VB, meansigma methods is 15V), the high level of pin LO output be 0.95Vcc (Vcc is low-tension supply input, and meansigma methods is 15V), control conducting and the cut-off of upper switching tube Q2 and lower switching tube Q3 respectively.When the square wave of pin HO and pin LO output controls upper switching tube Q2 conducting, lower switching tube Q3 ends, and in control during switching tube Q2 cut-off, lower switching tube Q3 turns on.When upper switching tube Q2 conducting, lower switching tube Q3 cut-off, enter into lower capacitance C20, C21 charging interval.Power vd+end electric current is (namely, the HVDC of electrochemical capacitor C6+ end (electrochemical capacitor C6 positive terminal)) flow into from first pole (being illustrated in figure 2 drain D) of upper switching tube Q2, the second pole (being illustrated in figure 2 source S) through upper switching tube Q2, then through the boosting of choke induction L3 coil thus resonant capacitance C19 in parallel with electric arc tube HID one voltage of generation be significantly larger than power vd+voltage, now resonant capacitance C19 resonant discharge, current potential may be up to about 3000V, puncture electric arc tube HID two end electrodes and HID is turned on, electric current after conducting flows into two lower capacitance C20, it is charged by C21.Owing to the capacitance of two lower capacitance C20, C21 differs 4-5 times, during upper switching tube Q2 once turns on, one that capacity is little fully charged, and one that capacity is big is only charged on a small quantity.Then, the square wave of pin HO and pin LO output controls upper switching tube Q2 cut-off, lower switching tube Q3 conducting, now, enters into two lower capacitance C20, C21 discharge times.Discharge current through conducting after electric arc tube HID and resonant capacitance C19 connected in parallel, the first pole (being illustrated in figure 2 drain D) then through choke induction L3 to lower switching tube Q3 flows to its second pole (being illustrated in figure 2 source S), is back to power vd-end.
The RT pin (namely pin 13) of IC/EV0108 connects frequency of oscillation and arranges resistance R17, by adjusting the resistance value of resistance R17, thus it is possible to vary the frequency of the square wave of pin HO, LO output.In the present invention, it is possible to square wave frequency is set to 29.5Hz by the resistance value adjusting resistance R17.
After an above-mentioned charging-discharging cycle, owing to the capacity of two lower capacitance C20, C21 exists larger difference, the big lower capacitance (such as descending capacitance C21) of capacity can not fully discharge and recharge, be then electrically charged again within the upper once charging interval.After 2-5 discharge and recharge, the lower capacitance that capacity is big will gather substantial amounts of electric charge, and now within discharge time, it will produce the electric discharge of a big electric current.
Therefore, the operating current importing electric arc tube HID has three kinds: 1. going up the power supply HVDC that switching tube conducting imports, duration accounts for the 50% of a cycle；2. the electric current time produced every the electric discharge of straight small capacitances, duration also accounts for the 50% of a cycle；3. the electric current time produced every the electric discharge of straight bulky capacitor, duration is about 20-50% in small capacitances discharge cycle.So, the load electric arc tube HID high-frequency high-voltage current imported not only is comprised fixed center frequency but also comprise the high-frequency high-voltage current of mechanical periodicity by the conducting in turn of upper switching tube Q2 and lower switching tube Q3 and cut-off.
Electric arc tube HID resonance catches fire after turning on and is under 29-30KHz fixed frequency, by above-mentioned three kinds of electric current uninterrupted power supplies.Starting pipe pressure very low, only 20-30V, and pipe flow is very big, be generally the 130-150% of running current, electric arc tube HID heats rapidly under this big electric current, mercury vapor pressure rapid increase in its cavity, and metal halide pill is also by high temperature melting and gasify.1 minute left right rear tubes presses and is raised to more than the 80% of normal operation pipe pressure, the mercury vapor pressure rate of climb slows down, metal halide pill major part is by full and uniform gasification, start normal circulation, namely discharge drift about with uniform metal gas back and forth between the two poles of the earth from the minimum place (cold end) of electric arc tube temperature and electric arc tube, electric arc tube HID sends the arc light of white partially, light output there is no shake, but sometimes because having metal halide pill granule (being approximately in about a 1 μm) drift not having full and uniform gasification to enter the two poles of the earth region of discharge and being melted by plasma high temperature arc light stream (more than about 3000 DEG C), and fully gasify, can suddenly as a miniature blast in electric arc tube HID, send of short duration red radiance；This situation is consistent with the phenomenon of low frequency driving, does not affect electric arc tube and enters normal operation, does not also assert in the industry it is sound oscillation.
Then through 1-2 minute, pipe pressure slowly rises to pressed high 2-3% than normal operation pipe, and power ratio design power also exceeds 1-2%, and light output reaches the highest, then slowly falls back to normal design working value；But persistent period is longer during this, about 15-30 minute；No matter it is rise to maximum tube pressure and power, or during falling, light output is all very steady, it does not have any sound oscillation according to observations；But from delicate electrical instrument, it is pressed in 2-3 position after arithmetic point as pipe be can be observed on Hewlett-Packard HEWLETTPACKARD34401A, namely 10-2Or 10-3The change of beating of volt level；At this moment electric arc tube HID light output is sufficiently stable.
The present invention adopts the mode of the lower capacitance parallel connection of two big low capacity difference several times, utilize double time constant discharge and recharge to produce the electric current of size difference several times, namely at lower switching tube duration of work, electric arc tube can be exported the electric current dynamically changed of size difference several times by two lower capacitances, make electric arc tube within the half cycle time limit that upper and lower switching tube switchs, the dynamic variable-current differing several times imports electric arc tube, pipe pressure is controlled with dynamic current, halogen electric arc tube is made to observe the mechanism of the negative C-V characteristic of arc discharge completely, startup burning-point enters after stablizing, after electric arc tube pipe is pressed in arithmetic point, the fluctuation of 2-3 position changes, there is not sound oscillation in Metal halogen lamp, working stability, the good product consistency made.
Fig. 3 is the Integral metal halogen lamp system of the electric ballast of the double time constant discharge and recharge adopting Fig. 2.The wiring board of this electric ballast is arranged in the upper cover of plastic housing 1, top cap is connected to E27 or E40 lamp holder 2, the built-in E27 Edison base device 3 of plastic housing 1 lower cover, the bubble shape Metal halogen lamp 4 of electric arc tube encapsulation, the cell-shell top of bubble shape Metal halogen lamp 4 is provided with E27 lamp holder, rotatable screwing with the E27 Edison base device 3 of setting in electric ballast plastic body 1 bottom is firmly combined with, and is conveniently replaceable bubble shape Metal halogen lamp 4.Halogen electric arc tube shown in Fig. 2 is made by quartz, the halogen electric arc tube that quartz makes is good and cheap, but can only external mold blowing form owing to quartz arc tube chamber makes, inner chamber physical dimension is irregular, the generally individually employing low frequency driving of prior art, prior art has no the electric ballast that high frequency electric directly drives；The double time constant discharge and recharge of the technology of the present invention and IC fixed frequency drive control sound oscillation to efficiently solve the problems referred to above, it is possible to make quartz arc tube normal operation well.
In the present invention, the product attribute test that preferred 70W quartz arc tube makes is as follows: input voltage is 86-265VAC (alternating voltage), input current is 0.36A, input power is 78-79W, when power factor is 0.99-0.998, the light of product leads to 6670lm (lumen), and light efficiency reaches 85lm/W, colour temperature reaches 4100K, and color rendering index reaches Ra79.3；Except color rendering index is lower than except same type ceramic arc tube, other indexs are substantially all not poor up and down, burning-point effect is same with Inductive ballast low frequency driving outstanding, and electric arc tube color rendering index under high-frequency drive is higher than Inductive ballast more than 5%, and do not affected by mains fluctuations, all the time invariable power work, the light being conducive to output constant leads to and extends the service life of electric arc tube.
It is understood that above detailed description of the invention is only the exemplary embodiment of the present invention, but the invention is not limited in this.For those skilled in the art, without departing under the spirit of the present invention and essence, it is possible to making various modification and improvement, these modification and improvement will be regarded as protection scope of the present invention.
Claims (10)
1. an electric ballast, including the first switching tube (Q2), second switch pipe (Q3), choke induction (L3), resonant capacitance (C19), the first capacitance (C20) and the second capacitance (C21), wherein
Described first capacitance (C20) and the second capacitance (C21) are connected in parallel, first end of the first capacitance (C20) and the second capacitance (C21) is connected to the second end of load, and the second end ground connection of the first capacitance (C20) and the second capacitance (C21)；
First pole of the first end of choke induction (L3) and the second pole of the first switching tube (Q2), second switch pipe (Q3) connects, and the second end is connected on the first end of load；
Resonant capacitance (C19) and load are connected in parallel；And
First capacitance (C20) differs several times with the capacity of the second capacitance (C21).
2. electric ballast as claimed in claim 1, wherein,
The capacity of the first capacitance (C20) and the second capacitance (C21) differs 4-5 times.
3. electric ballast as claimed in claim 2, wherein,
The capacity of the first capacitance (C20) is 33-100nf, and the capacity of the second capacitance (C21) is 150-470nf.
4. electric ballast as claimed in claim 1, also includes integrated chip EV0108, wherein:
The HO pin of EV0108 is connected with the control pole of the first switching tube (Q2) by the first resistance (R15)；And
The LO pin of EV0108 is connected with the control pole of second switch pipe (Q3) by the second resistance (R16).
5. electric ballast as claimed in claim 4, wherein,
The HO pin of integrated chip EV0108, LO pin output duty cycle are that the square wave of 50% is to drive conducting and the cut-off of the first switching tube (Q2) and second switch pipe (Q3) respectively.
6. the electric ballast as described in claim 4 or 5, also include prime mu balanced circuit, this prime mu balanced circuit includes electrolytic capacitor filter (C6), the 4th resistance (R13), Zener diode (Z2), low-voltage electrolysis electric capacity (C18), wherein
One end of 4th resistance (R13) connects the positive pole of electrolytic capacitor filter (C6), and
After DC voltage on the positive pole of electrochemical capacitor (C6) is again filtered by Zener diode (Z2) voltage stabilizing, low-voltage electrolysis electric capacity (C18) after the 4th resistance (R13) blood pressure lowering, to the running voltage that integrated chip EV0108 input is stable.
7. there is a Metal halogen lamp system for electric ballast as according to any one of claim 1-6, including shell (1), Metal halogen lamp (4) and described electric ballast, wherein,
Shell (1) includes upper cover and lower cover, and top cap is connected to lamp holder (2), lower cover Built-in light base device (3)；
Metal halogen lamp (4) top is provided with mates it is thus possible to be installed to the lamp holder of shell (1) with lamp base device (3)；And
Described electric ballast is arranged in the upper cover of shell (1).
8. a driving method for the electric ballast according to any one of claim 1-6, including:
Conducting and the cut-off of the first switching tube (Q2) and second switch pipe (Q3) is driven respectively with the square-wave signal of fixed frequency；And
When the first switching tube (Q2) conducting, second switch pipe (Q3) end, by choke induction to load supplying, and the first capacitance (C20) and the second capacitance (C21) are charged；When the first switching tube (Q2) cut-off, second switch pipe (Q3) turn on, the first capacitance (C20) and the second capacitance (C21) discharge with to load supplying.
9. driving method according to claim 8, wherein,
The HO pin using integrated chip EV0108 produces conducting and the cut-off of the square wave drive the first switching tube (Q2) of fixed frequency；And
The LO pin using integrated chip EV0108 produces conducting and the cut-off of square wave drive second switch pipe (Q2) of fixed frequency.
10. driving method according to claim 8 or claim 9, wherein, described fixed frequency is 29.5Hz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410828606.4A CN105792490A (en) | 2014-12-26 | 2014-12-26 | Electronic ballast and driving method therefor, and metal halogen lamp system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410828606.4A CN105792490A (en) | 2014-12-26 | 2014-12-26 | Electronic ballast and driving method therefor, and metal halogen lamp system |
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| CN105792490A true CN105792490A (en) | 2016-07-20 |
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| CN201410828606.4A Pending CN105792490A (en) | 2014-12-26 | 2014-12-26 | Electronic ballast and driving method therefor, and metal halogen lamp system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113242624A (en) * | 2021-05-25 | 2021-08-10 | 苏州纽克斯电源技术股份有限公司 | Activation control circuit of metal halide lamp and metal halide lamp electronic ballast |
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| US20030222596A1 (en) * | 2002-06-04 | 2003-12-04 | General Electric Company | Hid electronic ballast with glow to arc and warm-up control |
| CN2718772Y (en) * | 2004-04-29 | 2005-08-17 | 杨汉如 | Integrated self-ballast mountable & dismountuble small power metal halide lamp |
| CN101707841A (en) * | 2009-11-03 | 2010-05-12 | 海洋王照明科技股份有限公司 | Electronic ballast and fluorescent lamp device |
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- 2014-12-26 CN CN201410828606.4A patent/CN105792490A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030222596A1 (en) * | 2002-06-04 | 2003-12-04 | General Electric Company | Hid electronic ballast with glow to arc and warm-up control |
| CN2718772Y (en) * | 2004-04-29 | 2005-08-17 | 杨汉如 | Integrated self-ballast mountable & dismountuble small power metal halide lamp |
| CN101707841A (en) * | 2009-11-03 | 2010-05-12 | 海洋王照明科技股份有限公司 | Electronic ballast and fluorescent lamp device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113242624A (en) * | 2021-05-25 | 2021-08-10 | 苏州纽克斯电源技术股份有限公司 | Activation control circuit of metal halide lamp and metal halide lamp electronic ballast |
| CN113242624B (en) * | 2021-05-25 | 2022-09-20 | 苏州纽克斯电源技术股份有限公司 | Activation control circuit of metal halide lamp and metal halide lamp electronic ballast |
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Effective date of abandoning: 20200117 |