CN2248438Y - Voltage-doubler rectifying ballast for fluorescent lamp - Google Patents
Voltage-doubler rectifying ballast for fluorescent lamp Download PDFInfo
- Publication number
- CN2248438Y CN2248438Y CN 95224817 CN95224817U CN2248438Y CN 2248438 Y CN2248438 Y CN 2248438Y CN 95224817 CN95224817 CN 95224817 CN 95224817 U CN95224817 U CN 95224817U CN 2248438 Y CN2248438 Y CN 2248438Y
- Authority
- CN
- China
- Prior art keywords
- voltage
- circuit
- fluorescent lamp
- direct current
- positive
- 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
Links
Images
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
The utility model relates to a voltage doubler rectifying ballast for a fluorescent lamp. The utility model is composed of a voltage doubler rectifier circuit which is added to the positive electrode of a lamp, a positive voltage reverse transmission prevention diode which is arranged in a negative electrode circuit, and a block capacitor arranged in a positive and negative electrode connecting circuit, wherein, the block capacitor prevents the pure direct current portions which can generate a pulsating direct current under the condition of voltage doubling from forming a pure direct current, and thus the value of the pulsating direct current passing through the lamp is lowered. Thereby, the service life of the fluorescent lamp is extended, and the defect existing in the voltage-doubler rectifying ballast for a fluorescent lamp is solved.
Description
The utility model relates to a kind of voltage multiplying rectifier formula fluorescent lamp ballast.
It is good that voltage multiplying rectifier formula fluorescent lamp ballast has under the low-voltage starting performance, do not produce the advantage that high-frequency impulse pollutes electrical network, but, fluorescent tube behind the multiplication of voltage starter is worked under the situation of multiplication of voltage all the time, the pulsating direct current of passing through is very big, therefore, short by the fluorescent tube life-span of voltage multiplying rectifier formula fluorescent lamp ballast starter, the brightness decay is fast.
The purpose of this utility model provides a kind of voltage multiplying rectifier formula fluorescent lamp ballast that can improve the fluorescent tube working life.
This fluorescent lamp ballast is made up of cathode circuit, negative pole circuit and both positive and negative polarity connecting circuit, wherein be provided with multiplication of voltage electric capacity, rectifier diode and multiplication of voltage in the cathode circuit and discharge diode, be provided with the diode of anti-malleation reverse pumping in the negative pole circuit, be provided with capacitance in the both positive and negative polarity connecting circuit.
Further illustrate particular content of the present utility model below in conjunction with drawings and Examples.
Accompanying drawing is circuit theory diagrams of the present utility model.
As shown in the figure, voltage multiplying rectifier formula fluorescent lamp ballast described in the utility model is made up of cathode circuit, negative pole circuit and both positive and negative polarity connecting circuit, wherein is provided with the multiplication of voltage capacitor C in the cathode circuit
1, rectifier diode D
1Discharge diode D with multiplication of voltage
2, be provided with anti-malleation reverse pumping diode D in the negative pole circuit
3, be provided with capacitance C in the both positive and negative polarity connecting circuit
2Described cathode circuit comes down to be added in the voltage doubling rectifing circuit on the fluorescent tube positive pole, and present embodiment is made following well designed to the structure of this voltage doubling rectifing circuit, promptly is provided with by capacitor C
3With diode D
4Form and with the multiplication of voltage capacitor C
1Protective circuit in parallel.Capacitor C in this protective circuit
3With anti-malleation reverse pumping diode D
3Series connection as required, can also be added the capacitor C with the protective circuit parallel connection in protective circuit
6With with protective circuit diode in series D
6In addition, present embodiment is provided with on the negative pole circuit with anti-malleation reverse pumping diode D
3Capacitor C in parallel
4, and same capacitor C
3The series connection and with circuit D
3, C
4In parallel and with diode D
3The opposite diode circuit D of transmission of electricity direction
5, also further shunt resistance R is set at the arrival end of the way circuit of forming by cathode circuit, negative pole circuit and both positive and negative polarity connecting circuit
1, shunting capacitance C is set at the port of export of voltage doubling rectifing circuit
5, current-limiting resistance R is set at the arrival end of fluorescent tube positive pole and the port of export of fluorescent tube negative pole
2And R
3
Fluorescent lamp ballast with said structure feature, its main feature is to be provided with capacitance on the both positive and negative polarity connecting circuit, this capacitance makes the pure direct current component in the pulsating direct current that can produce under the multiplication of voltage situation can not form pure direct current, thereby reduced pulsating direct current value by fluorescent tube, therefore, also just improve the working life of fluorescent tube, solved voltage multiplying rectifier formula fluorescent lamp ballast existing one big defective.
Claims (2)
1, a kind of voltage multiplying rectifier formula fluorescent lamp ballast is characterized in that: be made up of cathode circuit, negative pole circuit and both positive and negative polarity connecting circuit, wherein be provided with the multiplication of voltage capacitor C in the cathode circuit
1, rectifier diode D
1Discharge diode D with multiplication of voltage
2, be provided with anti-malleation reverse pumping diode D in the negative pole circuit
3, be provided with capacitance C in the both positive and negative polarity connecting circuit
2
2, voltage multiplying rectifier formula fluorescent lamp ballast according to claim 1 is characterized in that: be provided with by capacitor C
3With diode D
4Form and with the multiplication of voltage capacitor C
1Protective circuit in parallel, and capacitor C
3With anti-malleation reverse pumping diode D
3Series connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95224817 CN2248438Y (en) | 1995-10-18 | 1995-10-18 | Voltage-doubler rectifying ballast for fluorescent lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95224817 CN2248438Y (en) | 1995-10-18 | 1995-10-18 | Voltage-doubler rectifying ballast for fluorescent lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2248438Y true CN2248438Y (en) | 1997-02-26 |
Family
ID=33871469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95224817 Expired - Fee Related CN2248438Y (en) | 1995-10-18 | 1995-10-18 | Voltage-doubler rectifying ballast for fluorescent lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2248438Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101311793B (en) * | 2007-05-25 | 2010-07-07 | 群康科技(深圳)有限公司 | Backlight module |
| CN102213576A (en) * | 2011-05-30 | 2011-10-12 | 李继文 | Exploder |
-
1995
- 1995-10-18 CN CN 95224817 patent/CN2248438Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101311793B (en) * | 2007-05-25 | 2010-07-07 | 群康科技(深圳)有限公司 | Backlight module |
| CN102213576A (en) * | 2011-05-30 | 2011-10-12 | 李继文 | Exploder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2248438Y (en) | Voltage-doubler rectifying ballast for fluorescent lamp | |
| CN2181161Y (en) | Electronic frequency-changing starter for fluorescent lamp | |
| CN2222991Y (en) | Electronic ballast with special power supply filter circuit | |
| CN2200276Y (en) | Electronic power supply for neon lamp | |
| CN2146099Y (en) | Low frequency electronic ballast | |
| CN209949497U (en) | Electronic ballast | |
| CN2211685Y (en) | Electronic ballast for fluorescent light | |
| CN2634791Y (en) | Power supply of high power lamp | |
| CN2227391Y (en) | Electronic balalst with long service life, high efficiency and energy saving | |
| CN2135898Y (en) | Current changing fluorescent lamp ballast | |
| CN2195176Y (en) | Electronic ballast for fluorescent lamp | |
| CN2282758Y (en) | Ballast for fluorescent lamp | |
| CN2198739Y (en) | High efficiency daylight lamp | |
| CN2337741Y (en) | Electronic ballast with high performance | |
| CN2251240Y (en) | Power factor booster for electronic ballast | |
| CN2749215Y (en) | Constant power, single/double electrode multitube low harmonic shared electronic ballast | |
| CN2174024Y (en) | Induction type high-efficiency contactless low-temp. low-voltage glow starter | |
| CN2217294Y (en) | Electronic ignitor for two fluorescent lamps | |
| CN2250622Y (en) | Pulse xenon lamp power source | |
| CN2369451Y (en) | High performance low distortion high power factor electronic ballast | |
| CN2139338Y (en) | Electronic ballast for fluorescent lamp | |
| CN2138879Y (en) | Electronic starter for fluorescent lamp | |
| CN2249481Y (en) | Multi-voltage electronic ballast with filtering function | |
| CN2788508Y (en) | High-pressure starting work circuit of fluorescent lamp | |
| CN2250621Y (en) | High efficiency energy saving electronic day-light lamp |
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 |