CN2309686Y - High-performance electronic ballast - Google Patents
High-performance electronic ballast Download PDFInfo
- Publication number
- CN2309686Y CN2309686Y CN 97210287 CN97210287U CN2309686Y CN 2309686 Y CN2309686 Y CN 2309686Y CN 97210287 CN97210287 CN 97210287 CN 97210287 U CN97210287 U CN 97210287U CN 2309686 Y CN2309686 Y CN 2309686Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- power factor
- electronic ballast
- bridge rectifier
- performance electronic
- 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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Abstract
The utility model relates to a high-performance electronic ballast which is composed of a fluorescent lamp tube, an outer shell and an electronic ballast, wherein, the ballast is composed of a radio frequency interference suppressing circuit, a bridge rectifier circuit, a passive power factor correcting circuit, an abnormal state protecting circuit, a high frequency oscillating circuit, a matching circuit and a soft starting circuit. The high-performance electronic ballast has the outstanding advantages of simple lines, convenient debugging, high power factor, low harmonic content, long lifetime, favorable integral performance and low cost, and is convenient for mass production.
Description
The utility model relates to a kind of high-performance electronic ballast.
Integrated energy-saving lamp belongs to glow discharge spot lamp.With the integrated energy-saving lamp replace incandescent is the inexorable trend of electric light source development, also is the important content of implementing the green illumination plan.But the electric ballast of present integrated energy-saving lamp exists following several respects problem:
1. power factor is low, the harmonic content height;
2. lamp current envelope ripple is extremely asymmetric, and waveform changes with the variation of input power supply;
3. even power factor height, harmonic content is low, but lamp current crest coefficient height;
4. power is to voltage-sensitive, and seal is along with the variation of supply voltage, and integrated lamp power variation rate is big.
The problem of above-mentioned existence is had a strong impact on the high reliability of integrated energy-saving lamp, wide adaptability and long-life requirement.
At enterprising present situation, the purpose of this utility model is that a kind of circuit of design is simple, cost is low, and function is complete, and the high-performance electronic ballast of integrated energy-saving lamp is grown, is applicable to reliability height, life-span.
Above-mentioned purpose of design has been satisfied in design of the present utility model; it is characterized in that electric ballast constitutes by suppressing radio frequency interference circuit, bridge rectifier, passive type circuit of power factor correction, differential mode protective circuit, high-frequency oscillating circuits, match circuit and soft starting circuit; suppressing radio frequency interference circuit, bridge rectifier and passive type circuit of power factor correction is linked in sequence; the differential mode protective circuit is connected with high-frequency oscillating circuits; the two is between passive type circuit of power factor correction and match circuit, and soft starting circuit is connected across the fluorescent wire two ends.
Electric main is after suppressing the radio frequency interference circuit filtering; be rectified into pulsating dc voltage through bridge rectifier; this voltage provides power supply through passive type circuit of power factor correction and differential mode protection thermistor to high-frequency oscillating circuits; make oscillating circuit produce high-frequency oscillating circuits about 40 KHZ; this oscillating current flows into filament cathode through match circuit; and filament is carried out preheating by soft starting circuit; after the warm-up time about 2 seconds; the approximate open circuit of soft starting circuit; resonance work; provide the sudden change high pressure to fluorescent tube, make tube starting, integrated energy-saving lamp enters steady operation.
The high-performance integrated energy-saving lamp electronic ballast of producing according to the utility model design feature has the advantages that circuit is simple, debugging is convenient, be easy to produce in batches, each component parameters rationally is set, and debugging meticulously, can make power factor, harmonic content, lamp current crest three coordinates mutually, makes overall performance good.The utility model has overcome the deficiency that existing integrated energy-saving lamp ballast exists, and has the power factor height, and harmonic content is low, the light efficiency height, and the life-span is long, and is safe and reliable, and volume is little, and is in light weight, beautiful and comfortable, outstanding advantage easy to use.
Describe the utility model in detail below in conjunction with accompanying drawing:
Fig. 1 block diagram
Fig. 2 electrical schematic diagram
By block diagram as seen; the utility model constitutes by suppressing radio frequency interference circuit, bridge rectifier, passive type circuit of power factor correction, differential mode protective circuit, high-frequency oscillating circuits, match circuit and soft starting circuit and compact fluorescent lamp tube load; suppressing radio frequency interference circuit, bridge rectifier and passive type circuit of power factor correction is linked in sequence; the differential mode protective circuit is connected with high-frequency oscillating circuits, the two between passive type circuit of power factor correction and match circuit, soft starting circuit is connected across the fluorescent wire two ends.
Fig. 2 is the utility model electrical schematic diagram.C1, L1, C2 constitute inhibition radio frequency interference circuit, and D1～D4 forms bridge rectifier, and the passive type circuit of power factor correction is made of C3～C6, D5～D7 and R1.The positive pole of the positive pole of D5 and electrochemical capacitor C4 is serially connected with B point back and is parallel to A, C 2 points with high-frequency filter capacitor C3, and the A point is connected to the positive pole of bridge rectifier, and the C point is connected to the negative pole of bridge rectifier.C5 and C6 are series at the D point, and the other end and the filament of C6 join, and the other end of C5 and C point join.Resistance R 1 is in parallel with diode D5, and diode D7 is in parallel with capacitor C 5, and the negative pole of D7 is connected to the D point, and diode D6 is connected in B, D 2 points, and negative pole connects the B point.R1 can be with potentiometer or fixed resistor.
The differential mode protective circuit is thermistor PTC, and high-frequency oscillating circuits is made of T1, T2, R3～R7, L2, L3, C9, D8, D9, and T1, T2 adopt MIE13003 or 2611.Electric main provides power supply through bridge rectifier, differential mode protective circuit to high-frequency oscillating circuits, and its oscillating current flows into filament cathode through match circuit R2, C8, C3, and by the soft starting circuit that D10～D13 and R8 form filament is carried out preheating.After the warm-up time about 2 seconds, the approximate open circuit of soft starting circuit, resonance work provides the sudden change high pressure to fluorescent tube, lights fluorescent tube, and integrated lamp enters the steady operation state.D10～D13 is connected into bridge rectifier, and its input is connected to resonant capacitance C7 two ends, its output connecting resistance R8.
Claims (2)
1, high-performance electronic ballast; it is characterized in that electric ballast constitutes by suppressing radio frequency interference circuit, bridge rectifier, passive type circuit of power factor correction, differential mode protective circuit, high-frequency oscillating circuits, match circuit and soft starting circuit; suppressing radio frequency interference circuit, bridge rectifier and passive type circuit of power factor correction is linked in sequence; the differential mode protective circuit is connected with high-frequency oscillating circuits; the two is between passive type circuit of power factor correction and match circuit, and soft starting circuit is connected across the fluorescent wire two ends.
2,, it is characterized in that T1, the T2 in the high-frequency oscillating circuits adopts the MJE1300 series transistor according to the described high-performance electronic ballast of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97210287 CN2309686Y (en) | 1997-05-12 | 1997-05-12 | High-performance electronic ballast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97210287 CN2309686Y (en) | 1997-05-12 | 1997-05-12 | High-performance electronic ballast |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2309686Y true CN2309686Y (en) | 1999-03-03 |
Family
ID=33929255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97210287 Expired - Fee Related CN2309686Y (en) | 1997-05-12 | 1997-05-12 | High-performance electronic ballast |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2309686Y (en) |
-
1997
- 1997-05-12 CN CN 97210287 patent/CN2309686Y/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 |