CN204836755U - Use electrodeless fluorescence lamp of adjusting luminance of frequency generator control duty cycle - Google Patents
Use electrodeless fluorescence lamp of adjusting luminance of frequency generator control duty cycle Download PDFInfo
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- CN204836755U CN204836755U CN201520284682.3U CN201520284682U CN204836755U CN 204836755 U CN204836755 U CN 204836755U CN 201520284682 U CN201520284682 U CN 201520284682U CN 204836755 U CN204836755 U CN 204836755U
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- 238000010586 diagram Methods 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 7
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- 230000001105 regulatory effect Effects 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 238000005286 illumination Methods 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
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Abstract
The utility model aims to solve the technical problem that an use electrodeless fluorescence lamp of adjusting luminance of frequency generator control duty cycle is provided, it does not adopt the dc -to -ac converter to stop the technique of exporting of adjusting luminance in the twinkling of an eye, the stroboscopic effect who avoids the signal modulation to bring, including the device that has the dimming function, the device that has the dimming function mainly includes frequency generator and dc -to -ac converter integrated circuit (IC), the utility model discloses can keep the no stroboscopic advantage of electrodeless fluorescence lamp, be applicable to the application request of various occasions, use the utility model discloses a technique, the temperature rise of ballast is low, the reliable operation, longe -lived, the scope of adjusting luminance is big, can make the work of electrodeless ballast at the optimum condition of network matching, is the electrodeless fluorescence lamp method of adjusting luminance of an ideal. The utility model discloses obtain the fixed "Frequency" dc -to -ac converter of pulse duty factor adjustable, the duty cycle of fixed "Frequency" pulse is adjustable, changes the luminous flux of electrodeless fluorescence lamp output for the scope of adjusting luminance is about 30% - -100%.
Description
Technical field
The utility model relates to the dimming electrodeless fluorescent lamp that a kind of applying frequency generator controls duty ratio.
Background technology
Electrodeless florescent lamp integrates the novel light source of the high-tech of up-to-date electronics power-saving technique and electric light source technology, it is without filament, magnetic field is adopted to come energizing gas discharge, luminescence, have energy-efficient, without plurality of advantages such as stroboscopic, environmental protection, long-lives, it has been widely used in indoor and outdoor lighting field in recent years.
In actual applications due to power conservation requirement, such as, road lighting, tunnel illumination, classroom illumination needs electrodeless florescent lamp to have dimming function.
Have three kinds of technology can meet above-mentioned requirement of light regulation:
1, voltage regulating method, regulates inverter power device direct current supply voltage, changes power output;
2, frequency modulation method, changes inverter operating frequency, such as, improves inverter operating frequency, the impedance of output choke induction is increased, reduces the voltage and current of electrodeless fluorescent fluorescent tube, reach light modulation object;
3, pulse duty factor method is adjusted, design an independent frequency of oscillation module, its frequency of oscillation is lower, general between 300Hz-1KHz, the square-wave pulse signal control inverter work exported, the duty ratio of square-wave pulse signal can regulate, and inverter can be stopped instantaneously exporting at one by the adjustment of duty ratio, to change the time that inverter stops exporting, reach light requirement of withering.
Following defect is all there is in above-mentioned three kinds of light-dimming methods:
1, voltage regulating method; Reduce inverter power device direct current supply voltage and can reach light modulation object, but the too low meeting of direct voltage causes inverter failure of oscillation, light-off, and dimming scope is little.
2, frequency modulation method: change inverter operating frequency, when operating frequency is more to the skew of output network resonance peak point, also can cause light-off, due to operating frequency and output network off resonance, inverter power consumption will be caused to increase, ballast temperature raises, reduce lifetime of system, dimming scope is little.
3, adjust pulse duty factor method: apply independent frequency of oscillation module, carry out duty cycle adjustment to the control signal pulse in module, inverter stops the time exporting to be determined by the change of control signal pulse duty factor at one instantaneously, can reach requirement of light regulation.But the frequency of module control signal is generally about 300Hz to 1KHz, when light modulation, light source can with the stroboscopic effect of module control signal, and the ac modulation human eye between 300Hz to 1KHz can discover the stroboscopic of light source, and light modulation is darker, and stroboscopic is more serious.After applying this technology, being weakened without stroboscopic advantage of electrodeless florescent lamp, can not be widely used in the lighting environment that requirement is higher, and it can not be called the duty ratio light modulation on true meaning.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of duty ratio light regulating technology not changing inverter operating frequency, such as, inverter operating frequency is fixed on 250KHz, it does not adopt inverter to stop the light regulating technology exporting instantaneously, avoid the stroboscopic effect that signal madulation brings, for this reason, the utility model is by the following technical solutions:
A kind of applying frequency generator controls the dimming electrodeless fluorescent lamp of duty ratio, comprise the device with dimming function, the described device with dimming function comprises frequency generator and inverter integrated circuit (IC), described frequency generator exports square-wave pulse signal F1 and square-wave pulse signal F2, the frequency of square-wave pulse signal F2 is the twice of square-wave pulse signal F1, there is the dead band of a Microsecond grade between two signals, make metal-oxide-semiconductor Q1 and metal-oxide-semiconductor Q2 can not simultaneously conducting;
Described inverter integrated circuit (IC) comprises high-side driver output (HO) pin, low side driver output (LO) pin, driving inputs (IN) pin, circuit shuts down logic input (
) pin and high-end suspended power supply return (Vs) pin; The high-side driver of described inverter integrated circuit (IC) exports (HO) pin and is connected with the first metal-oxide-semiconductor Q1, and low side driver output (LO) pin of described inverter integrated circuit (IC) is connected with the second metal-oxide-semiconductor Q2; The pin that described frequency generator exports square-wave pulse signal F1 inputs (IN) pin with the driving of inverter integrated circuit (IC) and is connected, the pin of described frequency generator output square-wave pulse signal F2 and inverter integrated circuit (IC) shut down logic input (
) be connected, the high-end suspended power supply of described inverter integrated circuit (IC) returns (Vs) pin and described first metal-oxide-semiconductor Q1 output, the second metal-oxide-semiconductor Q2 output connect to form inverter integrated circuit (IC) output, and the square-wave signal F1-1 exported as exchanging is that electrodeless fluorescent fluorescent tube is powered.
On the basis adopting technique scheme, the utility model also can adopt following further technical scheme:
Described square-wave pulse signal F1 frequency range is within 100KHz and 300KHz, respective party wave pulse signal F2 is within frequency range 200KHz and 600KHz, the duty ratio of described square-wave pulse signal F2 can change at 30%-100%, and namely the power of Non-polarized lamp can adjust between 30%-100%.
Described inverter adopts IR21844 chip, described IR21844 chip is provided with high-side driver output (HO) pin, low side driver output (LO) pin, driving inputs (IN) pin, circuit shuts down logic input (
) pin and high-end suspended power supply return (Vs) pin.
Square-wave pulse signal F2 controls by two kinds of modes: outside 0-10V direct voltage carries out pulse-width modulation to frequency generator sampling to F2 by analog to digital converter; Also by control line ground connection or the short circuit of button switching controls frequency generator, make the change in duty cycle of frequency generator direct controlling party wave pulse signal F2, namely electrodeless florescent lamp power changes by light modulation.
Described dimming electrodeless fluorescent lamp also comprises protective circuit, and described protective circuit is provided with capacitance partial pressure circuit, and described capacitance partial pressure circuit is connected with rectifies.
Owing to adopting the technical solution of the utility model, the utility model can keep electrodeless florescent lamp without stroboscopic advantage, be applicable to the application requirement of various occasion, apply technology of the present utility model, the temperature rise of ballast is low, reliable operation, life-span is long, dimming scope is large, and electrodeless fluorescent lamp ballast can be made to be operated in the optimum condition of net mate, is a kind of desirable electrodeless florescent lamp light-dimming method.The utility model obtains the adjustable built-in oscillation frequency inverter of pulse duty factor, and the duty ratio of built-in oscillation frequency pulse is adjustable, changes the luminous flux that electrodeless florescent lamp exports, makes dimming scope at about 30%--100%.
Accompanying drawing explanation
Fig. 1 is the dimming electrodeless fluorescent lamp theory diagram that a kind of applying frequency generator provided by the invention controls duty ratio.
Fig. 2 is inverter integrated circuit (IC) figure that the present invention adopts integrated circuit IR21844 chip to form.
Fig. 3 is the waveform schematic diagram not having dimming function.
Fig. 4 is the waveform schematic diagram that applying frequency generator provided by the invention controls that duty ratio has dimming function.
Fig. 5-1 to be duty ratio provided by the invention be 60% waveform schematic diagram.
Fig. 5-2 to be duty ratio provided by the invention be 40% waveform schematic diagram.
Fig. 6 is frequency generator structural representation provided by the invention.
Fig. 7 is frequency generator setting procedure schematic diagram of the present invention.
Fig. 8 is the dimming electrodeless fluorescent lamp circuit schematic diagram that application frequency generator provided by the invention controls duty ratio.
Embodiment
Stroboscopic is that lighting source stimulates perception to the one of eyes.The factor forming light source stroboscopic is the operating current waveform of lamp.The light source of Alternating Current Power Supply all deposits stroboscopic, and when ac energisation frequency is greater than tens KHz, stroboscopic phenomenon is not easily discovered, ac energisation frequency reach hundreds of KHz even a few MHz time, stroboscopic phenomenon disappears substantially.
Common bulb is heat radiation light source by the ordinary incandescent lamp of 50Hz Alternating Current Power Supply, and stroboscopic is less, not easily discovers.
The electric current of input LED chip is direct current, does not have stroboscopic; If power after 50Hz AC rectification, the ripple of direct current will produce the stroboscopic of 50Hz, and the larger stroboscopic of ripple coefficient of direct current supply is more serious.
The operating frequency of Non-polarized lamp is generally 250KHz, than electricity-saving lamp operating frequency height 6-7 doubly, does not change the operating frequency of Non-polarized lamp, therefore substantially can't see stroboscopic, can be described as without stroboscopic during light modulation.
Application prior art regulates duty ratio to change inverter to stop the dimming electrodeless lamp of output time, uncomfortable smooth time, fluorescent tube is as clear, and after light modulation, stroboscopic makes fluorescent tube picture thicken.
Fig. 1 is theory diagram, Electromagnetic Compatibility filter 1 of the present invention, rectifier 2, power factor corrector (PFC) 3 part is substantially identical with conventional electrodeless fluorescent lamp ballast circuit, and these three device major functions meet the requirement of national standard to radio interference and power factor.In figure, 4 is inverter integrated circuit (IC), and 5 is frequency generator, and 6 is control signal, and 7 is output network, and 8 is protective circuit, and 9 is electrodeless fluorescent fluorescent tube, and L3, L4 are magnet ring inductance.
Fig. 2 is inverter integrated circuit (IC) figure that the present invention adopts integrated circuit IR21844 chip to form, described inverter integrated circuit (IC) comprises integrated circuit and exports the first metal-oxide-semiconductor Q1 that (HO) pin is connected, the second metal-oxide-semiconductor Q2 be connected with low side driver output (LO) pin of inverter integrated circuit (IC) with the high-side driver of inverter integrated circuit (IC), and described inverter integrated circuit (IC) shuts down logic input
pin input square-wave pulse signal F2, drive input (IN) pin place input square-wave pulse signal F1, circuit high-side driver exports (HO) and exports square-wave pulse signal F1 through the first metal-oxide-semiconductor Q1, high-side driver-defeated send (LO) exports the frequency square wave signal F ' 1 postponing 180 phase places with square-wave pulse signal F1 through the second metal-oxide-semiconductor Q2, inverter integrated circuit (IC) high-end suspended power supply described in this returns (Vs) end and described first metal-oxide-semiconductor Q1 output, second metal-oxide-semiconductor Q2 output composition inverter output end A, export the square-wave signal F1-1 for AC signal, described square-wave signal F1-1 is that electrodeless fluorescent fluorescent tube is powered by output network.
Fig. 3 be circuit shut down logic input (
) pin is when being input as high level, forms inverter integrated circuit (IC) the square wave schematic diagram not having dimming function.
Fig. 4 be circuit shut down logic input (
) pin is input as square-wave pulse signal F2, the frequency of square-wave pulse signal F2 is the twice of square-wave pulse signal F1; Have the dead band B of a Microsecond grade between two signals, make the first metal-oxide-semiconductor Q1 and the second metal-oxide-semiconductor Q2 can not simultaneously conducting, described inverter integrated (IC) regulate described inverter integrated circuit (IC) shut down logic input (
) duty ratio of square-wave signal F1-1 of input square-wave pulse signal F2 and regulation output.
Fig. 5-1 be regulate duty ratio be 60% waveform schematic diagram, the pulsewidth of square-wave pulse signal F2 reduces to 60%, and the square-wave signal F1-1 pulsewidth of output also reduces to 60%.
Fig. 5-2 be regulate duty ratio be 40% waveform schematic diagram, the pulsewidth of square-wave pulse signal F2 reduces to 40%, and the square-wave signal F1-1 pulsewidth of output also reduces to 40%.
Described square-wave pulse signal F1 frequency range is within 100KHz and 300KHz, respective party wave pulse signal F2 is within frequency range 200KHz and 600KHz, namely described square-wave pulse signal F2 duty ratio can change at 30%-100%, and namely the power of Non-polarized lamp can adjust between 30%-100%.
Fig. 6 is frequency generator structural representation provided by the invention
,described frequency generator output drive signal regulates duty ratio by inverter integrated circuit (IC), it is that inverter integrated circuit (IC) provides drive singal that described frequency generator exports square-wave pulse signal F1, export square-wave pulse signal F2 is the signal that inverter integrated circuit (IC) provides pulsewidth controlled simultaneously
Shown in Fig. 7, square-wave pulse signal F2 controls by two kinds of modes: outside 0-10V direct voltage carries out pulse-width modulation to frequency generator sampling to F2 by analog to digital converter; Also by control line ground connection or the short circuit of button switching controls frequency generator, make frequency generator self directly control change in duty cycle, namely electrodeless florescent lamp power changes by light modulation.
Fig. 8 be application frequency generator provided by the invention control the dimming electrodeless fluorescent lamp of duty ratio must circuit theory diagrams, described inverter integrated circuit (IC) comprises integrated circuit and exports the first metal-oxide-semiconductor Q1 that (HO) pin is connected, the second metal-oxide-semiconductor Q2 be connected with low side driver output (LO) pin of integrated circuit with the high-side driver of integrated circuit; Described inverter integrated circuit (IC) comprises integrated circuit and exports the first metal-oxide-semiconductor Q1 that (HO) pin is connected, the second metal-oxide-semiconductor Q2 be connected with low side driver output (LO) pin of integrated circuit with the high-side driver of integrated circuit; The pin that described frequency generator exports square-wave pulse signal F1 inputs (IN) pin with the driving of inverter integrated circuit (IC) and is connected, the pin of described frequency generator output square-wave pulse signal F2 and inverter integrated circuit (IC) inverter integrated circuit (IC) shut down logic input (
) be connected.Fig. 8 also comprises protective circuit; when the fluorescent tube of electrodeless florescent lamp breaks or is removed; the magnet ring inductance L 3 of the fluorescent tube both sides of electrodeless florescent lamp and magnet ring inductance L 4 two ends produce high pressure, and this high pressure is by electric capacity C9, C10; C11 dividing potential drop; become direct voltage through D1, D11 bis-rectifies, voltage-stabiliser tube D12 direct voltage rises, now voltage-stabiliser tube D12 conducting; trigger thyristor D13 conducting, inverter integrated (IC)
pin is grounded, and inverter integrated circuit (IC) no longer exports square-wave signal F1-1, and electrodeless florescent lamp quits work.
Claims (6)
1. the dimming electrodeless fluorescent lamp of an applying frequency generator control duty ratio, comprise the device with dimming function, it is characterized in that, the described device with dimming function comprises frequency generator and inverter integrated circuit (IC), described frequency generator exports square-wave pulse signal F1 and square-wave pulse signal F2, and the frequency of square-wave pulse signal F2 is the twice of square-wave pulse signal F1;
Described inverter integrated circuit (IC) comprises high-side driver output (HO) pin, low side driver output (LO) pin, driving inputs (IN) pin, circuit shuts down logic input (
) pin and high-end suspended power supply return (Vs) pin; The high-side driver of described inverter integrated circuit (IC) exports (HO) pin and is connected with the first metal-oxide-semiconductor Q1, and low side driver output (LO) pin of described inverter integrated circuit (IC) is connected with the second metal-oxide-semiconductor Q2; The pin that described frequency generator exports square-wave pulse signal F1 inputs (IN) pin with the driving of inverter integrated circuit (IC) and is connected, the pin of described frequency generator output square-wave pulse signal F2 and inverter integrated circuit (IC) shut down logic input (
) be connected, the high-end suspended power supply of described inverter integrated circuit (IC) returns (Vs) pin and described first metal-oxide-semiconductor Q1 output, the second metal-oxide-semiconductor Q2 output connect to form inverter integrated circuit (IC) output, and the square-wave signal F1-1 exported as exchanging is that electrodeless fluorescent fluorescent tube is powered.
2. a kind of applying frequency generator as claimed in claim 1 controls the dimming electrodeless fluorescent lamp of duty ratio, it is characterized in that, described square-wave pulse signal F1 frequency range is within 100KHz and 300KHz, respective party wave pulse signal F2 is within frequency range 200KHz and 600KHz, the duty ratio of described square-wave pulse signal F2 can change at 30%-100%, and namely the power of Non-polarized lamp can adjust between 30%-100%.
3. a kind of applying frequency generator as claimed in claim 1 controls the dimming electrodeless fluorescent lamp of duty ratio, and it is characterized in that, described inverter integrated circuit (IC) comprises IR21844 chip.
4. a kind of applying frequency generator as claimed in claim 1 controls the dimming electrodeless fluorescent lamp of duty ratio, it is characterized in that, outside 0-10V direct voltage carries out pulse-width modulation to frequency generator sampling to described square-wave pulse signal F2 by analog to digital converter.
5. a kind of applying frequency generator as claimed in claim 1 controls the dimming electrodeless fluorescent lamp of duty ratio, it is characterized in that, by control line ground connection or the short circuit of button switching controls frequency generator, make the change in duty cycle of frequency generator self direct controlling party wave pulse signal F2, namely pulse-width modulation is carried out to described square-wave pulse signal F2.
6. a kind of applying frequency generator as claimed in claim 1 controls the dimming electrodeless fluorescent lamp of duty ratio; it is characterized in that; described dimming electrodeless fluorescent lamp also comprises protective circuit, and described protective circuit is provided with capacitance partial pressure circuit, and described capacitance partial pressure circuit is connected with rectifies.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520284682.3U CN204836755U (en) | 2015-05-05 | 2015-05-05 | Use electrodeless fluorescence lamp of adjusting luminance of frequency generator control duty cycle |
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| CN201520284682.3U CN204836755U (en) | 2015-05-05 | 2015-05-05 | Use electrodeless fluorescence lamp of adjusting luminance of frequency generator control duty cycle |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104822217A (en) * | 2015-05-05 | 2015-08-05 | 浙江开元光电照明科技有限公司 | Electrodeless fluorescent lamp dimming method controlling duty ratio by double-frequency square wave pulse signal generator |
| CN109683641A (en) * | 2018-12-21 | 2019-04-26 | 北京无线电计量测试研究所 | A kind of Non-polarized lamp temprature control method and device |
| CN110045199A (en) * | 2019-03-20 | 2019-07-23 | 杭州通鉴科技有限公司 | A kind of EFT/ESD/CS analysis of electromagnetic interference instrument |
-
2015
- 2015-05-05 CN CN201520284682.3U patent/CN204836755U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104822217A (en) * | 2015-05-05 | 2015-08-05 | 浙江开元光电照明科技有限公司 | Electrodeless fluorescent lamp dimming method controlling duty ratio by double-frequency square wave pulse signal generator |
| CN109683641A (en) * | 2018-12-21 | 2019-04-26 | 北京无线电计量测试研究所 | A kind of Non-polarized lamp temprature control method and device |
| CN110045199A (en) * | 2019-03-20 | 2019-07-23 | 杭州通鉴科技有限公司 | A kind of EFT/ESD/CS analysis of electromagnetic interference instrument |
| CN110045199B (en) * | 2019-03-20 | 2024-05-03 | 杭州通鉴科技有限公司 | EFT/ESD/CS electromagnetic interference analyzer |
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Effective date of registration: 20230904 Address after: Building 11, Standard Factory Building, Balidian Town, Wuxing District, Huzhou City, Zhejiang Province, 313000 Patentee after: ZHEJIANG CHUANGYUAN LIGHTING TECHNOLOGY Co.,Ltd. Address before: 310015 floor 4, building 5, No. 88, Jiangling Road, Binjiang District, Hangzhou City, Zhejiang Province Patentee before: ZHEJIANG KAIYUAN PHOTOELECTRIC LIGHTING TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20240122 Address after: Building 9, No. 16 Huishui Road, Licang District, Qingdao City, Shandong Province, 266000 Patentee after: Huahui Guangshu (Qingdao) Technology Co.,Ltd. Country or region after: China Address before: Building 11, Standard Factory Building, Balidian Town, Wuxing District, Huzhou City, Zhejiang Province, 313000 Patentee before: ZHEJIANG CHUANGYUAN LIGHTING TECHNOLOGY Co.,Ltd. Country or region before: China |
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