CN2133121Y - Quick start ballast for fluorescent lamp - Google Patents
Quick start ballast for fluorescent lamp Download PDFInfo
- Publication number
- CN2133121Y CN2133121Y CN 92227368 CN92227368U CN2133121Y CN 2133121 Y CN2133121 Y CN 2133121Y CN 92227368 CN92227368 CN 92227368 CN 92227368 U CN92227368 U CN 92227368U CN 2133121 Y CN2133121 Y CN 2133121Y
- Authority
- CN
- China
- Prior art keywords
- fluorescent lamp
- power factor
- model
- utility
- switching diode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
The utility model relates to a quick start ballast for fluorescent lamp. The quick start ballast for fluorescent lamp comprises an iron core inductance coil, a capacitor, a bidirectional thyristor, a resistor and a switching diode. The utility model is characterized in that one end of the iron core inductance coil is connected with a power factor compensation capacitor, and the other end of the iron core inductance coil is connected in series with a resonant capacitor and the bidirectional thyristor; the resonant capacitor and the bidirectional thyristor are connected in parallel with the fluorescent lamp and the power factor compensation capacitor and the resistor are connected in series with the switching diode. The power factor compensation capacitor, the resistor and the switching diode are connected with the control end of the bidirectional thyristor. The circuit is simple, and the power factor is high. The utility model has the advantages of low cost, high safety and able to normally start in low temperature and low voltage conditions.
Description
The utility model relates to a kind of lighting device, and particularly a kind of fluorescent lamp starts ballast fast.
The kind of existing fluorescent lamp ballast is more, but because its power factor is low, reactive power is big, perhaps because the unreasonable frequent damage of its circuit design, perhaps because its price height, and has seriously influenced the extensive use and the result of use of fluorescent lamp.
The purpose of this utility model is exactly in order to overcome above-mentioned weak point, provides a kind of fluorescent lamp to start ballast fast, and both circuit was simple, power factor is high for it, cost is low, and service behaviour is safe and reliable again.
Technical solution of the present utility model is: it is made up of iron inductance coil, electric capacity, bidirectional triode thyristor, resistance, switching diode, an end that it is characterized in that iron inductance coil 1 is connected with power factor compensation capacitance 2, the other end is connected with resonant capacitance 3, bidirectional triode thyristor 4, resonant capacitance 3, bidirectional triode thyristor 4 are in parallel with fluorescent lamp 5, power factor compensation capacitance 2 is connected with resistance 6, switching diode 7, is connected on the control end of bidirectional triode thyristor 4.
Its feature is that also the capacity of electric capacity 2,3 is 2uF-4.75uF, and the model of switching diode 7 is 1N4148, and the resistance of resistance 6 is 51K-91K.
Operation principle of the present utility model is: fluorescent lamp is inserted C of the present utility model, the D end, A, B termination energize, power supply is added to lamp tube ends through the iron inductance coil, because of its voltage magnitude deficiency so that the mercury vapour ionization in the fluorescent tube, it is infinitely great that the fluorescent tube internal resistance is, lamp tube ends voltage is higher than the fluorescent tube pressure drop, the trigger voltage that is provided by resistance and switching diode makes the controllable silicon conducting, resonant capacitance and iron inductance coil are formed half series circuit, and producing amplitude in lamp tube ends is 400V-600V voltage, so the mercury vapour in the fluorescent tube is ionized, fluorescent tube resistance descends immediately, controllable silicon turn-offs, and partly goes here and there humorous destroyedly, and fluorescent lamp changes normal operation over to.Because the iron inductance coil is that high its power number of induction reactance original paper is very low, therefore adding power factor compensation capacitance improves power factor.
Advantage of the present utility model is that (1) circuit is simple, power factor is high; (2) can normally start when low temperature, low pressure, service behaviour is safe and reliable, long service life; (3) start-up time was less than 1 second; (4) cost is low.
Fig. 1 is circuit theory diagrams of the present utility model.
Fig. 2 is the connection layout of profile of the present utility model and fluorescent tube.
Below in conjunction with accompanying drawing the utility model is further described.
Referring to Fig. 1, Fig. 2, resonant capacitance 3 in the circuit, power factor compensation capacitance 2 are identical with requirement of withstand voltage, and the utility model power is selected 2uF-2.5uF for use when 8W-20W, 30W 3.75uF, and 40W 4.75uF, withstand voltage all more than 400V.Resistance 6 is selected 51K-68K for use during 8W-20W, and 30W-40W selects 68K-91K for use.The parameters of iron inductance coil 1 is identical with the common Inductive ballast of corresponding power, therefore can directly select the common Inductive ballast of corresponding power for use.When being connected with the utility model, fluorescent lamp 5, helps the useful life of prolonging lamp tube like this with two lamp base parallel connections of every end.
The utility model can normally start more than the voltage 150V in winter, and the fluorescent tube of filament blow is recovered lost eyesight, and start-up time was less than 1 second.
The utility model can make full use of equipment and the raw material of producing common Inductive ballast.
Claims (3)
1, a kind of fluorescent lamp starts ballast fast, form by iron inductance coil, electric capacity, bidirectional triode thyristor, resistance, switching diode, an end that it is characterized in that iron inductance coil 1 is connected with power factor compensation capacitance 2, the other end is connected with resonant capacitance 3, bidirectional triode thyristor 4, resonant capacitance 3, bidirectional triode thyristor 4 are in parallel with fluorescent lamp 5, and power factor compensation capacitance 2 is connected, is connected on the control end of bidirectional triode thyristor 4 with resistance 6, switching diode 7.
2, a kind of fluorescent lamp according to claim 1 starts ballast fast, and the capacity that it is characterized in that electric capacity 2,3 is 2uF-4.75uF.
3, a kind of fluorescent lamp according to claim 1 and 2 starts ballast fast, and the model that it is characterized in that switching diode 7 is 1N4148, and the resistance of resistance 6 is 51K-91K.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92227368 CN2133121Y (en) | 1992-07-09 | 1992-07-09 | Quick start ballast for fluorescent lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92227368 CN2133121Y (en) | 1992-07-09 | 1992-07-09 | Quick start ballast for fluorescent lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2133121Y true CN2133121Y (en) | 1993-05-12 |
Family
ID=33771349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92227368 Expired - Fee Related CN2133121Y (en) | 1992-07-09 | 1992-07-09 | Quick start ballast for fluorescent lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2133121Y (en) |
-
1992
- 1992-07-09 CN CN 92227368 patent/CN2133121Y/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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |