CN101600288B - Electronic ballast circuit adaptable to common light adjustor to adjust light - Google Patents
Electronic ballast circuit adaptable to common light adjustor to adjust light Download PDFInfo
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- CN101600288B CN101600288B CN 200910105566 CN200910105566A CN101600288B CN 101600288 B CN101600288 B CN 101600288B CN 200910105566 CN200910105566 CN 200910105566 CN 200910105566 A CN200910105566 A CN 200910105566A CN 101600288 B CN101600288 B CN 101600288B
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Abstract
The invention discloses an electronic ballast circuit adaptable to a common light adjustor to adjust light, which comprises a power supply input circuit, a switching loop and a resonance output loop. The electronic ballast circuit is characterized in that: a correcting adjustment loop is arranged between the power supply input circuit and the switching loop; and simultaneously the resonance output loop also comprises a cathodic protection circuit, namely a filament protection loop. The electronic ballast circuit adaptable to the common light adjustor to adjust light, which can be used for adjusting an energy saving lamp and also can be independently used as an electronic ballast of a lighting accessory, has the advantages of low manufacturing cost, wide light adjusting range and stable performance and prolongs the service life of a lamp.
Description
Technical field
The invention belongs to the electric lighting technical field, especially relate to a kind of circuit of electronic ballast that is adapted to common dimmer for light control.
Background technology
As everyone knows, incandescent lamp bulb can be used for light modulation, and common energy-saving lamp can not be used for light modulation.Electricity-saving lamp wants really to replace fully the characteristic that incandescent lamp bulb must have light modulation.That is exactly that the electric ballast of electricity-saving lamp inside will have the dimming characteristic that adapts with dimmer.About light modulation feasibility analysis and the light modulation principle of light modulating energy-saving lamp, did detailed elaboration in applicant's " light modulation CFL product feasibility analysis and market prospects " literary composition on China's " illuminating engineering journal " first phase in 2007 and " Chinese electric lighting " third phase in 2007.
The voltage type of electricity-saving lamp or electric ballast product work power supply can be divided into 110V-127V and two voltage ranges of 220V-240V basically according to different countries and regions.The insider knows the supply voltage for 110V-127V, and the voltage span is low, and amplitude is less, just in time presses with the instrumentation tubes of gas discharge tube to be close, and in theory, the electricity-saving lamp product ratio of this working power is easier to be designed to have dimming characteristic.And for electricity-saving lamp or the electric ballast product of the working power of 220V-240V, the voltage span is large, amplitude is high, become have dimming characteristic to the Design of Digital Ballast in the electricity-saving lamp, just relative some difficulty.At present do not have also for the electricity-saving lamp product of these two voltage ranges or electric ballast that true cost is low and tunable optical type circuit of electronic ballast excellent performance is complementary.Knowing that good this of cost low performance itself is exactly to save, is exactly energy-conservation, and social development and economic benefit are had more profound significance.
Supporting the use what finish dimming function with dimmable energy-saving lamp is dimmer.Dimmer mainly divides forward position light modulation, rear along light modulation and sine wave dimming.At present in the world different all kinds of dimmers in countries and regions as many as hundreds and thousands of kinds.Also there is not up to now a kind of circuit of electronic ballast can both match with these dimmers.Therefore can both the adapt circuit of electronic ballast of light modulating energy-saving lamp of a kind of and these dimmers is arranged, seem extremely important.
Electric ballast as lighting accessory is now technical very ripe through the development of more than ten years, and what the product of tunable optical type had enters the industrialization stage, and just these need independent adjusting control, and price is also very expensive simultaneously.And the dimmable electronic ballast product that uses that directly can match with common dimmer does not also have.
The operation principle that electricity-saving lamp, electric ballast are applied to light modulating device is: electricity-saving lamp, electronic ballast lamp (subsidiary light source) will be gone here and there in power circuit together with controllable silicon dimmer when using.By the control silicon controlled angle of flow, the sine voltage of electrical network input is cut away a part, thereby the supply power voltage of half-bridge inverter in the change energy-saving lamp electronic ballast, because the supply power voltage of the lamp current of light fixture and half-bridge inverter is directly proportional, so changed the dimmer silicon controlled angle of flow, just changed the supply power voltage of inverter in the lamp, also just changed lamp current, finally changed lamp power, changed light output, Here it is electricity-saving lamp, electric ballast are applied to the operation principle of light modulating device.
As shown in Figure 1, be the electricity-saving lamp that circulates on the existing market, the main body circuit theory diagrams of electric ballast product.Two defectives below this circuit mainly contains when being used for having the circuit (dimmer) of light modulating device:
1, this circuit is the low power factor circuit, adjusts without PFC, and the supply power voltage of switch half-bridge circuit is directly by providing after D1, D2, D3, D4 rectification and the C2 filtering.When sinusoidal ac becomes the very high pulsation envelope of peak value through behind the dimmer.And the at this moment therewith continuous work of circuit, electric current and voltage efficient becomes lower.Add because filtering is clean and do not make the integrated circuit Point Drifting in a part of alternating current component of electrolysis C2 stack.Higher current peak and larger circuit harmonizing wave have a strong impact on the triggering work loop of dimmer inside, and its performance results output is out of control, cause that the serious flicker of lamp or circuit are not worked etc.
2, this line construction is simple, and the working point is single.Do not possess input and the linear regulating power of the load of output.Therefore be operated under the different voltage conditions, the filament focus is unstable.Cause early stage negative electrode blackout.The lost of life.
Above 2 is exactly the true cause that common energy-saving lamp can not be used for light modulating device, so this series products must all indicate " can not be used for light modulation " printed words on the packaging.
Summary of the invention
Development purpose of the present invention is to overcome the defective that above-mentioned prior art exists, and provide a kind of light modulating energy-saving lamp that both can be used for also to be used for independent electric ballast as lighting accessory, and low cost of manufacture, dimming scope is wide, stable performance prolongs the light fixture circuit of electronic ballast that is adapted to common dimmer for light control in useful life.
A kind of circuit of electronic ballast that is adapted to common dimmer for light control of the present invention; comprise power supply input circuit, switch loop and resonance output loop; it is characterized in that: have between described power supply input circuit and the switch loop to proofread and correct and adjust the loop; described resonance output loop also comprises the cathodic protection circuit simultaneously, i.e. filament protection loop.
Described correction is adjusted in the loop, has a high pressure resistant capacitor and high-frequency diode parallel connection and goes here and there afterwards in the anodal loop of after rectification DC power supply.Its effect is to proofread and correct the power factor that improves circuit, thereby reduces the peak current of circuit.
Described correction is adjusted in the loop, also has simultaneously behind a high-frequency diode, high pressure resistant capacitor, the coils from parallel connection of coils string after rectification in the dc power cathode loop.Its effect is the linear change that output and input parameter are adjusted in control.
Described correction is adjusted in the loop, also has behind a high-frequency diode, the high pressure resistant Parallel-connected Capacitor two ends that are connected on DC power supply after the rectification with a high pressure resistant capacitor's seriesu again.This high pressure resistant capacitor's seriesu is the operating frequency of control output current and circuit.
Described correction is adjusted in the loop, also has the two ends that an electrolytic capacitor filter is connected on DC power supply after the rectification.
In the described filament protection loop, have the two ends that a resistance, two high pressure resistant capacitors are connected in parallel on fluorescent tube simultaneously.The effect of resistance is that absorption is high pressure resistant, avoids in the damage of starting instantaneous pressure to two high pressure resistant capacitors.
In the described filament protection loop, also have two secondary capacitors and be connected in parallel in the filament loop, and form series loop with two high pressure resistant capacitors simultaneously.Its objective is that two high pressure resistant capacitors because of the capacity high-frequency resonant behind the when starting elder generation low-frequency resonant that do not coexist, avoid high pressure resistant anticathode injury.The effect of two secondary capacitors is in the light modulation process, when different voltage power supply point heater current is adjusted, and keeps the cathode hot spot temperature, protection filament protection negative electrode.
Described filament protection loop also is connected to by feedback loop proofreaies and correct between the high-frequency diode and high pressure resistant capacitor of adjusting the loop, returns in the major loop through two high pressure resistant capacitors, high-frequency diodes.Its objective is that improving the power utilization rate improves line efficiency, the continuity of the current/voltage after the copped wave of increase dimmer.
Beneficial effect of the present invention is:
1, all to adopt be that discrete component forms to circuit of the present invention, do not use the integrated circuit (IC) element, low cost of manufacture, and dimming scope is wide, and stable performance can prolong light fixture useful life.
2, circuit of the present invention can be suitable for all common controllable silicon dimmers, all rear along dimmer and all sinewave dimmers, and and they finish together the fluorescent light stepless dimming.
3, the electricity-saving lamp product that can make of circuit of the present invention is applied to light adjusting circuit, has overcome the weakness that common energy-saving lamp product on the present market can not be used for light modulating device.Can be used for equally doing separately the electric ballast product of position lighting accessory.With dimmer is supporting together the strip-shaped fluorescent lamp pipe is carried out stepless dimming.Simplified the dimming mode of existing strip-shaped fluorescent lamp.
4, circuit of the present invention has solved at low cost the electronic energy-saving lamp of All countries and regions in the world and has been applied to the problem of common dimmer arrangement work as these two kinds of products of electric ballast of lighting accessory, thereby widened field of employment and the scope of application of these two kinds of electric lightings, improved the original use value of product.
5, can not only make electricity-saving lamp and the electric ballast of circuit of the present invention can be applied to lighting network control.And can be suitable for all common dimmers of selling on the market.Solved adapting and corresponding problem of common dimmer and electricity-saving lamp product and independent electric ballast product as lighting accessory.Thereby enlarge and the use value and the market life phase that prolong common this product of dimmer.
Description of drawings
Fig. 1 is a kind of main body circuit theory diagrams of existing product;
Fig. 2 is circuit block diagram of the present invention;
Fig. 3 is the circuit diagram of the embodiment of the invention.
Among the figure: A is power supply input circuit; B proofreaies and correct to adjust the loop; C is the switch loop; D is the resonance output loop; E is filament protection loop; F is feedback loop; 201,204,206,208 4 is voltage-resistant capacitor; The 209th, electrolytic capacitor filter; 202, the 203, the 205th, high-frequency diode; The 207th, coil; The 503rd, resistance; 504, the 507th, high pressure resistant capacitor; 505, the 506th, secondary capacitor; The 508th, fluorescent tube.
Embodiment
Embodiment:
Shown in Fig. 2,3: a kind of circuit of electronic ballast that is adapted to common dimmer for light control of the present invention; comprise power supply input circuit A, switch loop C and resonance output loop D; it is characterized in that: have between described power supply input circuit A and the switch loop C to proofread and correct and adjust loop B; described resonance output loop D also comprises the cathodic protection circuit simultaneously, i.e. filament protection loop E.
Described correction is adjusted among the B of loop, has in the anodal loop of a high pressure resistant capacitor 201 and high-frequency diode 202 rear strings in parallel DC power supply after rectification.Its effect is to proofread and correct the power factor that improves circuit, thereby reduces the peak current of circuit.
Described correction is adjusted in the loop, also have simultaneously a high-frequency diode 205, high pressure resistant capacitor 206, coil 207 in parallel after string after rectification in the dc power cathode loop.Its effect is the linear change that output and input parameter are adjusted in control.
Described correction is adjusted in the loop, also has after a high-frequency diode 203, high pressure resistant capacitor 204 parallel connection two ends with high pressure resistant capacitor 208 series connections DC power supply after rectification again.This high pressure resistant capacitor's seriesu is the operating frequency of control output current and circuit.
Described correction is adjusted in the loop, also has the two ends that an electrolytic capacitor filter 209 is connected on DC power supply after the rectification.
In the described filament protection loop, have the two ends that a resistance 503, two high pressure resistant capacitors 504,507 are connected in parallel on fluorescent tube 508 simultaneously.The effect of resistance 503 is to absorb high pressure resistantly, avoids at the starting instantaneous pressure two high pressure resistant capacitors 504,507 damage.
In the described filament protection loop, also have two low-voltage capacitances 505,506 and be connected in parallel in the filament loop, and form series loop with two high pressure resistant capacitors 504,507 simultaneously.Its objective is that two high pressure resistant capacitors because of the capacity high-frequency resonant behind the when starting elder generation low-frequency resonant that do not coexist, avoid high pressure resistant anticathode injury.The effect of two secondary capacitors is in the light modulation process, when different voltage power supply point heater current is adjusted, and keeps the cathode hot spot temperature, protection filament protection negative electrode.
Described filament protection loop also is connected to by feedback loop proofreaies and correct between the high-frequency diode 203 and high pressure resistant capacitor 208 of adjusting the loop, returns in the major loop through two high pressure resistant capacitors 204,201, high-frequency diode 202.Its objective is that improving the power utilization rate improves line efficiency, the continuity of the current/voltage after the copped wave of increase dimmer.
Claims (2)
1. circuit of electronic ballast that is adapted to common dimmer for light control, comprise power supply input circuit (A), switch loop (C) and resonance output loop (D), it is characterized in that: have between described power supply input circuit (A) and switch loop (C) to proofread and correct and adjust loop (B), described resonance output loop (D) also comprises the cathodic protection circuit simultaneously, i.e. filament protection loop (E);
Described correction is adjusted in the loop (B), has in the anodal loop of a high pressure resistant capacitor (201) and a high-frequency diode (202) rear string in parallel DC power supply after rectification;
Described correction is adjusted in the loop (B), also have simultaneously a high-frequency diode (205), a high pressure resistant capacitor (206), a coil (207) in parallel after string after rectification in the dc power cathode loop;
Described correction is adjusted in the loop (B), also has after a high-frequency diode (203), a high pressure resistant capacitor (204) parallel connection two ends with a high pressure resistant capacitor (208) series connection DC power supply after rectification again;
In the described filament protection loop (E), have the two ends that a resistance (503), two high pressure resistant capacitors (504,507) are connected in parallel on fluorescent tube (508) simultaneously;
In the described filament protection loop (E), also have two secondary capacitors (505,506) and be connected in parallel in the filament loop, and form series loop with two high pressure resistant capacitors (504,507) simultaneously;
Described filament protection loop (E) also is connected to by feedback loop (F) and proofreaies and correct between the high-frequency diode (203) and high pressure resistant capacitor (208) of adjusting loop (B), returns in the major loop through two high pressure resistant capacitors (204,201), high-frequency diode (202).
2. a kind of circuit of electronic ballast that is adapted to common dimmer for light control according to claim 1, it is characterized in that: described correction is adjusted in the loop (B), also has the two ends that an electrolytic capacitor filter (209) is connected on DC power supply after the rectification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910105566 CN101600288B (en) | 2009-02-25 | 2009-02-25 | Electronic ballast circuit adaptable to common light adjustor to adjust light |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910105566 CN101600288B (en) | 2009-02-25 | 2009-02-25 | Electronic ballast circuit adaptable to common light adjustor to adjust light |
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| CN101600288A CN101600288A (en) | 2009-12-09 |
| CN101600288B true CN101600288B (en) | 2013-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910105566 Expired - Fee Related CN101600288B (en) | 2009-02-25 | 2009-02-25 | Electronic ballast circuit adaptable to common light adjustor to adjust light |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103313492A (en) * | 2012-03-07 | 2013-09-18 | 张玉清 | Electronic ballast with adjustable luminance |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101107886A (en) * | 2005-01-19 | 2008-01-16 | 皇家飞利浦电子股份有限公司 | Dim control circuit dimming method and system |
| CN101257765A (en) * | 2007-03-02 | 2008-09-03 | 马士科技有限公司 | Stepless light modulation florescent lamp and ballast thereof |
-
2009
- 2009-02-25 CN CN 200910105566 patent/CN101600288B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101107886A (en) * | 2005-01-19 | 2008-01-16 | 皇家飞利浦电子股份有限公司 | Dim control circuit dimming method and system |
| CN101257765A (en) * | 2007-03-02 | 2008-09-03 | 马士科技有限公司 | Stepless light modulation florescent lamp and ballast thereof |
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| Publication number | Publication date |
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| CN101600288A (en) | 2009-12-09 |
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Granted publication date: 20130410 Termination date: 20140225 |