CN101754550A - Centralized electricity-saving lamp power source - Google Patents
Centralized electricity-saving lamp power source Download PDFInfo
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- CN101754550A CN101754550A CN200810204489A CN200810204489A CN101754550A CN 101754550 A CN101754550 A CN 101754550A CN 200810204489 A CN200810204489 A CN 200810204489A CN 200810204489 A CN200810204489 A CN 200810204489A CN 101754550 A CN101754550 A CN 101754550A
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- saving lamp
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- lamp power
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Abstract
The invention discloses a centralized electricity-saving lamp power source, comprising an EMC filter circuit, a bridge rectifier circuit and a PFC circuit which are sequentially connected, the PFC circuit comprises an embedded-type PFC chip and external parameter circuit, a BOOST boost inductor, an MOS pipe, and a main electrolytic capacitor, wherein, the PFC circuit is the active or passive PFC circuit. The centralized electricity-saving lamp power source provided by the invention has low cost, small occupied space, long service life, and decreased conducted interference of the whole lighting system.
Description
[technical field]
The present invention relates to a kind of electric supply installation, particularly relates to a kind of centralized saving lamp power source.
[background technology]
The integrated electric electricity-saving lamp is the novel energy-conserving light source of recent fashionable domestic and international market, is illustrated in figure 1 as the circuit theory diagrams of integrated electric electricity-saving lamp of the prior art.It has distinguishing features such as volume is little, in light weight, the quick startup of the high and low voltage of light efficiency, can directly replace incandescent lamp bulb, is used for various illuminations and decoratees the place, and the energy-conserving product as emphasis is promoted is used in a large number in factory, public building, family.Yet there are the following problems in application facet for existing integrated electric electricity-saving lamp:
At first, the integrated electric power factor of energy-saving lamp is on the low side.In alternating current circuit, the cosine of the phase difference between voltage and the electric current (Φ) is called power factor, represents with symbol cos Φ, and numerically, power factor is the ratio of active power and apparent power, i.e. cos Φ=P/S.It is power factor=available power/gross power.But circuit of electronic ballast generally all is the low power factor circuit, employing be bridge rectifier, capacitor filtering.After the opening power, to electric capacity charging, when supply voltage is lower than voltage on the electric capacity, source current is 0, and load is by capacitances to supply power.Like this, have only near supply voltage diode peak value conducting to charge to electric capacity, thereby the current lead-through angle is very little, waveform is very poor, and higher harmonic content is big, and power factor is low, generally has only 0.5～0.65.The integrated lamp of low wattage all is this ballast in the market.Because cheap, the compact conformation of these product prices does not have ability to arrange power factor compensation circuit, certainly will require electric power system to consider power factor compensation device separately.
But these electrical equipment use amounts are very big, and are especially especially surprising in place use amounts such as office, meeting room, classrooms.The existence of a large amount of reactive powers is not only wasted user's pile, and has been reduced supply transformer efficient, has strengthened line current and then has increased copper loss.Therefore this part low power factor electrical equipment needs local compensation.For a long time, it is on the powerful bucking-out system of unit that people's attentiveness all concentrates on the enterprise, few people consider development and Design light small and exquisite, simple, flexible, the easy to operate mini power factor compensation device of configuration be installed.
Secondly, integrated electric electricity-saving lamp failure rate height.Integrated electric is energy-conservation owing to complex circuit, compact conformation, and in the acceptable price in market, its failure rate is high always, and wherein the overwhelming majority is a ballast wiring board fault, and fluorescent tube itself seldom damages prior to wiring board.
[summary of the invention]
For solving problems of the prior art, the invention discloses a kind of centralized saving lamp power source.Because the use of low wattage electronic energy-saving lamp mostly has cluster to use, the layout of " babysbreath " formula is of common occurrence, and the present invention is according to this handling characteristics of integrated electric electricity-saving lamp, solves above-mentioned several problem with the way of centrally connected power supply.
A kind of centralized saving lamp power source has comprised successively along EMC (ElectromagneticCompatibility, the electromagnetic compatibility) filter circuit, bridge rectifier and PFC (Power FactorCorrection, the power factor correction) circuit that connect.
Wherein, described pfc circuit comprises embedded PFC chip and peripheral parametric circuit thereof, BOOST boost inductance, metal-oxide-semiconductor, main electrochemical capacitor.As optional technical scheme, described pfc circuit is active pfc circuit or passive PFC circuit.
The power factor (PF) of described centralized saving lamp power source is 0.99; The power of described centralized saving lamp power source is 40W, 60W, 80W, 100W, 200W, 300W, 500W or 1000W.
Beneficial effect of the present invention is, centralized saving lamp power source belongs to power factor compensation series products on the spot when carrying out the distribution system design, use the unified a plurality of integrated energy-saving lamp centrally connected power supplies given in the subrange of this product, help improving power factor, the circuit utilization ratio of distribution system.Centralized saving lamp power source of the present invention is with low cost, it is little to take up room, long service life and reduced the conducted interference of whole illuminator effectively.
[description of drawings]
Fig. 1 is the circuit theory diagrams of integrated electric electricity-saving lamp of the prior art;
Fig. 2 is the circuit theory diagrams of a kind of embodiment of a kind of centralized saving lamp power source of the present invention;
Fig. 3 is the circuit theory diagrams of second kind of embodiment of a kind of centralized saving lamp power source of the present invention.
[embodiment]
Below in conjunction with embodiment and with reference to accompanying drawing the present invention is further described.
Referring to Fig. 2, Fig. 2 is the circuit theory diagrams of a kind of embodiment of a kind of centralized saving lamp power source of the present invention, and this centralized saving lamp power source has comprised successively along the EMC filter circuit 100, bridge rectifier 200 and the pfc circuit 300 that connect.
Wherein, described pfc circuit 300 comprises embedded PFC chip and peripheral parametric circuit thereof, BOOST boost inductance L6, metal-oxide-semiconductor Q3, electrochemical capacitor C16.As optional technical scheme, described pfc circuit 300 is active pfc circuit, i.e. the Active Power Factor Correction pfc circuit.
The Active Power Factor Correction pfc circuit mainly contains booster type, voltage-dropping type, boosts--basic circuit forms such as voltage-dropping type and flyback type, wherein the booster type active PFC circuit can reduce output current under certain power output, reduce the appearance value and the volume of output filter capacitor, so extensive use in electric ballast.
As shown in Figure 2, L1～L3, C1～C7 constitutes EMC filter circuit 100, is used to filter Disturbance in Power Net, also filters the interference that this circuit produces, and it is produced electrical network disturb;
It is follow-up pfc circuit 300 power supplies that bridge rectifier 200 becomes direct current with AC rectification;
The power factor (PF) of described centralized saving lamp power source is 0.99; The power of described centralized saving lamp power source can be selected different specifications, as 40W, 60W, 80W, 100W, 200W, 300W, 500W or 1000W.
Referring to Fig. 3, Fig. 3 is the circuit theory diagrams of second kind of embodiment of a kind of centralized saving lamp power source of the present invention, and this centralized saving lamp power source has comprised successively along the EMC filter circuit 100, bridge rectifier 200 and the pfc circuit 300 that connect.
Wherein, described pfc circuit 300 is the passive PFC circuit, i.e. the PPFC (Passive Power Factor Correction) pfc circuit.
PPFC (Passive Power Factor Correction) pfc circuit operation principle is based on reducing output dc voltage, in each half period, the time that AC-input voltage is higher than VD is elongated, the angle of flow of rectifier diode just can increase, the Dead Time of supply voltage zero passage then shortens, it is continuous that its current waveform is tending towards, it is sinusoidal wave that envelope is tending towards, exchange input current like this and chase supply voltage transient change track, the power factor of circuit can be brought up to more than 0.9, power supply total harmonic distortion degree THD is reduced to below 30%.
As shown in Figure 3, L1～L3, C1～C7 constitutes EMC filter circuit 100, is used to filter Disturbance in Power Net, also filters the interference that this circuit produces, and it is produced electrical network disturb;
It is follow-up pfc circuit 300 power supplies that bridge rectifier 200 becomes direct current with AC rectification;
The power factor (PF) of described centralized saving lamp power source is 0.99; The power of described centralized saving lamp power source can be selected different specifications, as 40W, 60W, 80W, 100W, 200W, 300W, 500W or 1000W.
Because the present invention is intended to carry out power factor compensation at the electrical equipment group of small power energy-saving lamp group, small-power switching power-supply power supply, its specification can be versatile and flexible according to application places.
The single channel type: single meeting room, middle-size and small-size meeting room for example, with 150 on 13W lamp, gross power=13W*150=1950W can adopt the power supply centrally connected power supply of a 2000W, and power factor brings up to 0.98 from 0.6, and utilance improves 38%.
Multi-path type: be used for the compensation of floor lighting power factor, the typical case is applied as unified illumination place, many rooms, as classroom, government house etc.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model design; can also make some improvements and modifications, these improvements and modifications also should be considered within the scope of protection of the present invention.
Claims (6)
1. a centralized saving lamp power source is characterized in that, described centralized saving lamp power source comprises successively along the EMC filter circuit, bridge rectifier and the pfc circuit that connect.
2. centralized saving lamp power source according to claim 1 is characterized in that, described pfc circuit comprises embedded PFC chip and peripheral parametric circuit thereof, BOOST boost inductance, metal-oxide-semiconductor, main electrochemical capacitor.
3. centralized saving lamp power source according to claim 1 is characterized in that, described pfc circuit is active pfc circuit.
4. centralized saving lamp power source according to claim 1 is characterized in that, described pfc circuit is the passive PFC circuit.
5. centralized saving lamp power source according to claim 1 is characterized in that, the power factor of described centralized saving lamp power source is 0.99.
6. centralized saving lamp power source according to claim 1 is characterized in that, the power of described centralized saving lamp power source is 40W, 60W, 80W, 100W, 200W, 300W, 500W or 1000W.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN200810204489A CN101754550A (en) | 2008-12-12 | 2008-12-12 | Centralized electricity-saving lamp power source |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810204489A CN101754550A (en) | 2008-12-12 | 2008-12-12 | Centralized electricity-saving lamp power source |
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| CN101754550A true CN101754550A (en) | 2010-06-23 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102946186A (en) * | 2012-11-06 | 2013-02-27 | 西安开容电子技术有限责任公司 | Active harmonic suppressing mechanism |
| CN103633827A (en) * | 2012-08-27 | 2014-03-12 | 财团法人工业技术研究院 | Passive power factor correction circuit, electronic device using same and operation method |
| WO2014086097A1 (en) * | 2012-12-06 | 2014-06-12 | 东林科技股份有限公司 | Passive power factor correction and alternating-direct current conversion device and power factor correction circuit operation method |
| CN104049559A (en) * | 2014-06-09 | 2014-09-17 | 陆俊 | Load control circuit and device |
| CN105188241A (en) * | 2014-05-30 | 2015-12-23 | 湖北惠维科技股份有限公司 | Large-power HIG electronic ballast with excellent electromagnetic compatibility |
| CN107091422A (en) * | 2017-05-18 | 2017-08-25 | 上海电机学院 | A kind of Intelligent time delay controlled in wireless desk lamp |
-
2008
- 2008-12-12 CN CN200810204489A patent/CN101754550A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633827A (en) * | 2012-08-27 | 2014-03-12 | 财团法人工业技术研究院 | Passive power factor correction circuit, electronic device using same and operation method |
| TWI469479B (en) * | 2012-08-27 | 2015-01-11 | Ind Tech Res Inst | Passive power factor correction circuit, electronic device applying the same and operation method thereof |
| US9343956B2 (en) | 2012-08-27 | 2016-05-17 | Industrial Technology Research Institute | Passive power factor correction circuit, electronic device applying the same and operation methods thereof |
| CN102946186A (en) * | 2012-11-06 | 2013-02-27 | 西安开容电子技术有限责任公司 | Active harmonic suppressing mechanism |
| WO2014086097A1 (en) * | 2012-12-06 | 2014-06-12 | 东林科技股份有限公司 | Passive power factor correction and alternating-direct current conversion device and power factor correction circuit operation method |
| JP2016502838A (en) * | 2012-12-06 | 2016-01-28 | 東林科技股▲分▼有限公司Ｈｅｐ Ｔｅｃｈ Ｃｏ．， Ｌｔｄ | Passive power factor calibration AC / DC converter and operation method of power factor calibration circuit |
| CN105188241A (en) * | 2014-05-30 | 2015-12-23 | 湖北惠维科技股份有限公司 | Large-power HIG electronic ballast with excellent electromagnetic compatibility |
| CN104049559A (en) * | 2014-06-09 | 2014-09-17 | 陆俊 | Load control circuit and device |
| CN107091422A (en) * | 2017-05-18 | 2017-08-25 | 上海电机学院 | A kind of Intelligent time delay controlled in wireless desk lamp |
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Application publication date: 20100623 |