CN2126950Y - Power supply for neon lamp - Google Patents
Power supply for neon lamp Download PDFInfo
- Publication number
- CN2126950Y CN2126950Y CN 92225064 CN92225064U CN2126950Y CN 2126950 Y CN2126950 Y CN 2126950Y CN 92225064 CN92225064 CN 92225064 CN 92225064 U CN92225064 U CN 92225064U CN 2126950 Y CN2126950 Y CN 2126950Y
- Authority
- CN
- China
- Prior art keywords
- transformer
- neon lamp
- power source
- power supply
- oscillator
- 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 power supply for a neon lamp, comprising a rectifying power supply (1), an intermediate-frequency oscillator (2), an intermediate-frequency step-up transformer (3), wherein, the intermediate-frequency oscillator is a four-point type oscillator comprising two voltage-dividing current-regulating capacitors, two power triodes, two oscillating capacitors and an oscillating transformer. The utility model has the advantages of small size, light weight and big output power.
Description
The utility model relates to a kind of structure of neon lamp power source.
Existing neon lamp power source is the iron core formula leakage transformer of a heaviness, and power factor is low, energy consumption is high.Chinese patent 89219967.9 has been introduced a kind of neon lamp power source of being made up of oscillating circuit, start-up circuit, high-voltage output circuit and protective circuit, and volume is little, and electricity saving performance is good.
The purpose of this utility model is to propose another kind of neon lamp power source, and volume is little in light weight and power output is big.
This neon lamp power source comprises rectifier power source, intermediate-frequency oscillator and intermediate frequency step-up transformer.The four-point oscillator that described intermediate-frequency oscillator is made up of two dividing potential drop current stabilization electric capacity, two pliotrons, two oscillating capacitances, two clamp diodes and an oscillation transformer.This neon lamp power source needn't use start-up circuit owing to adopted the four-point oscillator, promptly can produce self-oscillation.During vibration, pliotron is in switch working state, and tube voltage drop is low, and power consumption is very little, and oscillating current is very big, and power output is big.After the intermediate frequency step-up transformer boosts, neon light can be lighted.Because operating frequency is more much higher than power frequency, neon light can be lighted under lower voltage.Intermediate frequency step-up transformer iron core adopts ferrite core, and volume is little, and weight is also light.
Accompanying drawing is the schematic diagram of this neon lamp power source.
As shown in drawings, (1) is rectifier power source, can adopt bridge rectifier, and (2) are intermediate-frequency oscillator, and (3) are intermediate frequency step-up transformer B
2B among the figure
1Be oscillation transformer, it twice grade respectively with oscillating capacitance C
4, C
5After the series connection again with clamp diode D
3, D
4Two pliotron BG are received in parallel connection then
1, BG
2Base stage and emitter between, the elementary and intermediate frequency step-up transformer B of oscillation transformer
2Elementary being in series after be connected on dividing potential drop current stabilization capacitor C
1, C
2Tie point a point and generator triode BG
1, BG
2Tie point between.
The operation principle of this neon lamp power source is: when power connection, power supply is to oscillating capacitance C
4, C
5Charging, because the each several part parameter of two transistor circuits can not be identical, C
4, C
5In to have one current potential to rise very fast, suppose C
4It is very fast to rise, and makes BG
1Elder generation's conducting, at this moment, the flow direction of electric current is: positive source → BG
1→ B
1Elementary → B
2Elementary → a point, rely on the polarity order of elementary and twice levels of as shown in the figure oscillation transformer, B
1Secondary coil in induced current make C
4On voltage reduce gradually, so reverse charging then is BG
1End, and C
5But because of the rising of positive charge voltage, BG
2Conducting.This moment, current direction was changed into: a point → B
2Elementary → B
1Elementary → BG
2→ power cathode, meanwhile, oscillation transformer B
1Secondary coil in the electric current responded to also change into and make C
5On voltage reduce reverse charging then, BG gradually
2End C
4On voltage raise, cause BG
1Conducting.Go round and begin again like this, circuit is in oscillatory regime, BG
1, BG
2Alternate conduction and ending is at B
2Produce an alternating current near square wave in elementary, by B
2Export to neon light after boosting.The frequency of this oscillating current is mainly by oscillating capacitance C
4, C
5Numerical value and oscillation transformer B
1Inductance determine, generally can be chosen between the 20-40KHZ.D among the figure
3, D
4Be the clamper diode, be used for guaranteeing that power supply is to oscillating capacitance C
4, C
5Charging, and at C
4, C
5Path is provided when discharge and reverse charging.R
1, R
4, be starting resistance, supply with C by them
4, C
5Charging current.R
3, R
6Be discharge resistance.R
2, R
5Be current-limiting resistance, it is unlikely excessive to be mainly used to limit base current.Capacitor C
3Be to be used for absorbing the high order clutter that produces in the oscillatory process.
Pliotron BG
1, BG
2Collector and emitter between can also respectively meet a shunt diode D
1, D
2, they can provide a path for the reverse clutter of oscillation transformer and the generation of intermediate frequency step-up transformer, and it is not added on the pliotron, reduce its extra power consumption.
The elementary of intermediate frequency step-up transformer can also increase several taps, is used for regulating the size of output voltage, to adapt to the neon light tube of different length.
Pliotron in this neon lamp power source can adopt BUT11A, 13005 etc., and about 7000 volts at the output voltage of intermediate frequency transformer, 220 volts of power input voltages, electric current 0.2 ampere-hour can be lighted 4 meters long neon light tubes, the about 160cm of its volume
3, heavily about 0.2kg.
Claims (2)
1, a kind of neon lamp power source comprises rectifier power source (1), intermediate-frequency oscillator (2) and intermediate frequency step-up transformer (3), it is characterized in that described intermediate-frequency oscillator is by two dividing potential drop current stabilization electric capacity (C
1, C
2), two pliotron (BG
1, BG
2), two oscillating capacitance (C
4, C
5), two clamp diode (D
3, D
4) and an oscillation transformer (B
1) the four-point oscillator formed.
2, neon lamp power source as claimed in claim 1 is characterized in that described two pliotron (BG
1, BG
2) collector and emitter between respectively meet a shunt diode (D
1, D
2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92225064 CN2126950Y (en) | 1992-06-11 | 1992-06-11 | Power supply for neon lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92225064 CN2126950Y (en) | 1992-06-11 | 1992-06-11 | Power supply for neon lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2126950Y true CN2126950Y (en) | 1993-02-10 |
Family
ID=33769968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92225064 Expired - Fee Related CN2126950Y (en) | 1992-06-11 | 1992-06-11 | Power supply for neon lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2126950Y (en) |
-
1992
- 1992-06-11 CN CN 92225064 patent/CN2126950Y/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 |