CN202514150U - High-power fluorescent lamp ballast - Google Patents
High-power fluorescent lamp ballast Download PDFInfo
- Publication number
- CN202514150U CN202514150U CN2011204961118U CN201120496111U CN202514150U CN 202514150 U CN202514150 U CN 202514150U CN 2011204961118 U CN2011204961118 U CN 2011204961118U CN 201120496111 U CN201120496111 U CN 201120496111U CN 202514150 U CN202514150 U CN 202514150U
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- fluorescent lamp
- lamp ballast
- frequency inverter
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- 239000003990 capacitor Substances 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses a high-power fluorescent lamp ballast including an EMI filter, a rectification circuit, a passive power factor correction circuit, a high-frequency inversion circuit and an LC series resonance circuit. The EMI filter, the rectification circuit, the passive power factor correction circuit, the high-frequency inversion circuit and the LC series resonance circuit are connected together successively. The power of the high-power fluorescent lamp ballast can reach to 1100 W and the high-power fluorescent lamp ballast can be used for lighting a plurality of T8/36W common fluorescent lamps at the same time. The high-power fluorescent lamp ballast is especially suitable for occasions such as shopping malls, factories, offices and the like that needing a dozen or scores of the fluorescent lamps for illuminating at the same time.
Description
Technical field
The utility model relates to a kind of High Power Factor, high-power fluorescent lamp electric ballast.
Background technology
At present, existing conventional fluorescent lamps electric ballast power factor is low, generally is no more than 0.6, is prone to cause the electrical network energy to waste; Power is low, generally is no more than 100W, only can light two to three fluorescent tubes simultaneously.And in places such as office building, factory floor, supermarket, megastore, classroom, usually tens of needs even tens fluorescent lamps could satisfy lighting requirement.Surpass 0.9 if can develop power factor, light the great-power electronic ballast of tens fluorescent tubes simultaneously, then can significantly reduce user cost, simultaneously the conservation of power energy.
Summary of the invention
The utility model mainly is a kind of High Power Factor of research and design, high-power fluorescent lamp electric ballast.This fluorescent lamp ballasting circuit can be lighted one to many fluorescent tubes.
This high-power fluorescent lamp ballast comprises electromagnetic interface filter, full-bridge rectifier D1, passive power factor correcting circuit, high-frequency inverter circuit, the LC series resonant circuit that connects successively, and the high-frequency inverter circuit output lights one to many fluorescent tubes through the LC series resonant circuit.
For realizing above-mentioned functions, adopt the self-oscillation half-bridge driven integrated circuit IR2153 (U1) of American I R company, its internal frequency is adjustable, its frequency f
0=1/ (1.44 (R3+75 Ω) C7); Wherein 75 Ω are the output impedance of 2 pin RT, change the R3 that is connected with 3 pin CT with 2 pin of integrated circuit and the numerical value of C7, then can change the cold cathode output frequency; Do not change the numerical value of C7 among the design, only come regulating frequency with the way of regulating R3.High-end output 7 pin Ho and the low side of U1 are exported 5 pin Lo, can directly drive two powerful MOSFET pipes.There is not dead-time control circuit in the U1, in order to avoid common conducting phenomenon appears in external two power switch pipes.The time interval between the square-wave pulse of 7 pin of U1 and the output of 5 pin is 1.2 μ s, and experiment has proved that the operating frequency of circuit is arranged on 35KHz or more possible with the below.
The characteristics of High Power Factor filtering ballasting circuit are at sinusoidal wave light driving voltage of resonance power utmost point generation, to reduce switching loss and EMI.Lamplight brightness is adjusted by reverse voltage stabilizing, is made up of three electrolytic capacitors (C2, C3, C4) and five diodes (D2, D3, D4, D5, D6), and power factor is about 0.92.The lumen coefficient is adjustable.
About the design of this circuit choke L2, because load current is bigger, select multiply enamelled wire coiling line bag for use, the sectional area of iron core will have enough surpluses, and the number of turn of line bag is chosen limit value, would rather stay a little air gaps more, guarantees that L2 magnetic saturation can at high temperature not occur.
It is different with common ballast to start electric capacity, is divided into two into C11, C12, and its purpose does not allow filament to flow through multiple current exactly, makes the temperature of negative electrode too high.Parallel diode on tube cathode then is for making negative electrode can produce two focuses.Common ballast is the work of single focus state, and the temperature of focus is than higher, makes to driving starter filament blow and prime high power valve to burn out.The IR2153 integrated circuit produced negative electrode output after the design used two focuses instead, and temperature descends, and has prolonged the life-span of fluorescent tube effectively, and electricity saving and energy saving 20%.Also can light many conventional fluorescent lamps illuminations simultaneously.
Description of drawings
Fig. 1 is high-power fluorescent lamp circuit of electronic ballast figure.
Among the figure: capacitor C 1, instrument transformer L1 constitute electromagnetic interface filter; 4 diodes constitute full-bridge rectifier D1; Electrochemical capacitor C2, C3, C4, diode D2, D3, D4, D5, D6 constitute passive power factor correcting circuit; Integrated circuit U1, high-power MOSFET tube Q1, Q2 and peripheral cell constitute high-frequency inverter circuit; Choke L2, capacitor C 11, C12 constitute series resonant circuit.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are further described.
As shown in Figure 1; This high-power fluorescent lamp ballast comprises electromagnetic interface filter, full-bridge rectifier D1, passive power factor correcting circuit, high-frequency inverter circuit and the LC series resonant circuit that connects successively, and the high-frequency inverter circuit output lights one to many fluorescent tubes through the LC series resonant circuit.
The composition and the annexation of the circuit of below describing in detail.
1. electromagnetic interface filter
C1, L1 constitute electromagnetic interface filter, and the two ends of C1 connect instrument transformer L1, and L1 is connected with full-bridge rectifier D1 input.
2. full-bridge rectifier D1
Constitute full-bridge rectifier D1 by 4 1N5399 diodes, convert electric main into direct current and export to following each circuit.
3. passive power factor correcting circuit
Three 22 μ F/250V electrochemical capacitor C2, C3, C4, five 1N4007 diode D2, D3, D4, D5, D6 constitute passive power factor correcting circuit.C2, D3, C3, D4, C4 series connection are between the both positive and negative polarity of full-bridge rectifier D1 output; The D2 anode is connected to the C4 anode, and the D2 negative terminal is connected to the C2 negative terminal; The D5 anode is connected to the C3 anode, and the D5 negative terminal is connected to full-bridge rectifier D1 output plus terminal; The D6 anode is connected to full-bridge rectifier D1 output negative terminal, and the D6 negative terminal is connected to the C3 negative terminal.
4. high-frequency inverter circuit
U1, Q1, Q2 and peripheral cell constitute high-frequency inverter circuit, and R3 and C7 are frequency of oscillation adjustment element.
5. LC series resonant circuit
L2, C11, C12 constitute series resonant circuit, and high-frequency inverter circuit connects multichannel LC series resonant circuit can realize lighting many fluorescent tubes.
The utility model power output can reach 1100W, power factor about 0.92.
Claims (6)
1. a high-power fluorescent lamp ballast is characterized in that comprising the electromagnetic interface filter, full-bridge rectifier D1, passive power factor correcting circuit, high-frequency inverter circuit and the LC series resonant circuit that connect successively; AC power is input to electromagnetic interface filter, gets into full-bridge rectifier D1 afterwards and produces HVDC, gets into high-frequency inverter circuit through passive power factor correcting circuit, and the high-frequency inverter circuit output is lighted fluorescent tube through the LC series resonant circuit.
2. high-power fluorescent lamp ballast as claimed in claim 1 is characterized in that capacitor C 1, instrument transformer L1 constitute electromagnetic interface filter, and the output of electromagnetic interface filter is connected to full-bridge rectifier D1 input.
3. high-power fluorescent lamp ballast as claimed in claim 1 is characterized in that 4 diodes constitute full-bridge rectifier D1, and the output of full-bridge rectifier D1 links to each other with passive power factor correcting circuit, high-frequency inverter circuit.
4. high-power fluorescent lamp ballast as claimed in claim 1 is characterized in that electrochemical capacitor C2, C3, C4, diode D2, D3, D4, D5 constitute passive power factor correcting circuit.
5. high-power fluorescent lamp ballast as claimed in claim 1 is characterized in that integrated circuit U1, high-power MOSFET tube Q1, Q2 and peripheral cell constitute high-frequency inverter circuit, and the high-frequency inverter circuit output links to each other with the LC series resonant circuit.
6. high-power fluorescent lamp ballast as claimed in claim 1 is characterized in that choke L2, capacitor C 11, C12 constitute the LC series resonant circuit, light fluorescent tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204961118U CN202514150U (en) | 2011-12-03 | 2011-12-03 | High-power fluorescent lamp ballast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204961118U CN202514150U (en) | 2011-12-03 | 2011-12-03 | High-power fluorescent lamp ballast |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202514150U true CN202514150U (en) | 2012-10-31 |
Family
ID=47066599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204961118U Expired - Fee Related CN202514150U (en) | 2011-12-03 | 2011-12-03 | High-power fluorescent lamp ballast |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202514150U (en) |
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2011
- 2011-12-03 CN CN2011204961118U patent/CN202514150U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: PINGSHUN XINGLI TECHNOLOGY DEVELOPMENT CO., LTD. Free format text: FORMER OWNER: LONG DEYING Effective date: 20130312 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130312 Address after: Hong Ling Cun, Qingyang town Shanxi city Changzhi province Pingshun County 046000 Patentee after: Pingshun Xingli Science & Technology Development Co., Ltd. Address before: 046000 No. 26 Xinhua West Street, winding County, Shanxi, Changzhi Patentee before: Long Deying |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121031 Termination date: 20131203 |