CN2612205Y - Dual-purpose electronic ballast for fluorescent lamp and gas discharge lamp - Google Patents
Dual-purpose electronic ballast for fluorescent lamp and gas discharge lamp Download PDFInfo
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- CN2612205Y CN2612205Y CN 03242397 CN03242397U CN2612205Y CN 2612205 Y CN2612205 Y CN 2612205Y CN 03242397 CN03242397 CN 03242397 CN 03242397 U CN03242397 U CN 03242397U CN 2612205 Y CN2612205 Y CN 2612205Y
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Abstract
The utility model relates to an electric ballast used in fluorescence lamp/gas discharge lamp, based on prior electric ballast of gas discharge lamp to be used in gas discharge lamp and fluorescence lamp. The utility model comprises serially connected a direct-current power circuit, an inactive power factor corrective circuit, an inverter circuit, and a boost start circuit. The direct-current power circuit is composed of a low-pass filter circuit and a diode bridge rectifying circuit to process alternative-direct current conversion. The inactive power factor correcting circuit can be composed of typical serial circuit to improve the utilization of electric network and reduce the interference of the ballast on the electric network. The inverter circuit can use push-pull or semi-bridge wave-change Lawyer sine oscillator circuit to transform input signal into high-frequency high-voltage sine signal. The boost start circuit comprises a plurality of insulation transformers with parallel connected primary windings and serial connected secondary windings, to boost and output voltage to start the discharge lamp, or add a secondary winding preheat filament to ignite the fluorescence lamp.
Description
Technical field
The utility model relates to a kind of electric lighting device, relates to a kind of being suitable for and high-intensity discharge lamp and the matching used low-cost dual-purpose electronic ballast of fluorescent lamp or rather.
Background technology
High-intensity gas discharge lamp (HID), also claim high intensity gas-discharge lamp or high-voltage gas discharging light, it is purposes novel energy-saving electric light source very widely, electric ballast matching used with it, particularly high-power, high strength, electric ballast then is the problem of each R﹠D institution and the research of light source manufacturer always cheaply.
The core technology of current electronic ballast for gas discharging lamp roughly has following four aspects: when lighting the HID lamp with high-frequency signal how by some special technique measure solution sound problem of shaking; Because driving the switching tube of HID lamp starter is operated under the high frequency state, for avoiding excessive high-frequency loss, need select expensive high-grade switching tube for use, adopt protective circuit for tackling various abnormal conditions, these technical measures all can cause the electric ballast cost to increase, and therefore must effectively solve the cost problem of electron rectifier; Solve the high-frequency signal how to produce the driving switch pipe and the problem of the protective circuit of reliable design how; How to improve the functional reliability problem of circuit of electronic ballast.But generally speaking, because will comprehensively solve the technical problem of above four aspects, and make circuit of electronic ballast more complicated, cost is too high, is unfavorable for promoting the use of of product.
Chinese patent 02232558.1 " electronic ballast for high-strength gas discharge lamp cheaply ", on the basis of taking a series of technological improvement measures, solved the problem of above four aspects preferably, under the condition that guarantees existing electric ballast performance and parameter, simplified circuit design greatly and reduced product cost.But blemish in an otherwise perfect thing is the straight tube fluorescent lamp that its circuit design can not be used for accounting in the market suitable share.
Because straight tube fluorescent lamp belongs to cathode preheat actuated type electric light source, usually adopt the electrode field emission that causes by high open circuit voltage to make the hard reboot mode of lamp triggering, because cathode emission material reaches the thermionic emission state that is higher than 700 ℃ far away, and high voltage can not puncture fluorescent tube in a short period of time, so fluorescent tube must bear one section glow discharge time and carry out the transition to arc discharge again, thereby cause the serious sputter of cathode emission material, make lamp tube ends filament tube wall on every side early stage blackout occur, cause fluorescent tube shortening in useful life.
The utility model content
The purpose of this utility model is design a kind of fluorescent lamp/gaseous discharge lamp dual-purpose electronic ballast, on existing " electronic ballast for high-strength gas discharge lamp cheaply " circuit design basis, by the property improved design, make it to be used for gaseous discharge lamp, can be used for fluorescent lamp again, the characteristics that further reduce the ballast volume, reduce product cost and raising reliability are arranged simultaneously.
The purpose of this utility model is achieved in that a kind of fluorescent lamp/gaseous discharge lamp dual-purpose electronic ballast, comprises DC power supply circuit, passive power factor correcting circuit, the inverter circuit and the starting circuit that boosts; Passive power factor correcting circuit connects DC power supply circuit output, and inverter circuit connects passive power factor correcting circuit output, and the starting circuit that boosts connects inverter circuit output; The starting circuit that boosts connects gaseous discharge lamp or Filament of fluorescent lamp.
DC power supply circuit wherein can be connected and composed by low-pass filter circuit and diode bridge rectifier circuit, finishes the conversion of AC to DC; Passive power factor correcting circuit can be made of typical current follow-up circuit, is used to improve utilance and the interference of reduction ballast to electrical network to electrical network; Inverter circuit can adopt push-pull type modification Lao Yeer sine wave oscillation circuit, also can adopt semibridge system modification Lao Yeer sine wave oscillation circuit, and input signal is become the high-frequency and high-voltage sine wave signal; The starting circuit that boosts then adopts a plurality of isolating transformers, and the series connection of elementary winding parallel connection, secondary winding, carries out the transformer output of boosting, when needing to connect fluorescent lamp, by set up winding confession preheating filament in Secondary winding of transformer.
The utility model, on the basis of existing electronic ballast for gas discharging lamp circuit design, design electronic ballast for fluorescent lamps and electronic ballast for high-strength gas discharge lamp cheaply, under the condition that guarantees existing electric ballast performance and parameter, further reduce product cost and improved the ballast quality, prolonged useful life.Can use for gaseous discharge lamp or the fluorescent lamp of 120V, 220V.
Description of drawings
Fig. 1 is fluorescent lamp/gaseous discharge lamp dual-purpose electronic ballast principle structure block diagram;
Fig. 2 is the 120V electronic ballast for fluorescent lamps circuit theory diagrams that adopt Fig. 1 principle design;
Fig. 3 is the 120V electronic ballast for high-strength gas discharge lamp circuit theory diagrams that adopt Fig. 1 principle design;
Fig. 4 is the 220V electronic ballast for fluorescent lamps circuit theory diagrams that adopt Fig. 1 principle design.
Embodiment
Below the embodiment circuit of given three electric ballasts, be respectively the circuit of electronic ballast of lighting 120V and 220V fluorescent lamp, shown in Fig. 2,4 and light the circuit of electronic ballast of 120V gaseous discharge lamp (HID) lamp, as shown in Figure 3.
Referring to Fig. 1 and in conjunction with referring to Fig. 2 to Fig. 4.Fluorescent lamp of the present utility model/gaseous discharge lamp dual-purpose electronic ballast, being linked in sequence by DC power supply circuit 11, passive power factor correcting circuit 12, inverter circuit 13 and the starting circuit 14 that boosts forms.
DC power supply circuit 11 wherein is used for 120V or 220V AC power are transformed to DC power supply output.In three embodiment, adopted identical circuit structure, connected and composed by intercoupling type low-pass filter circuit and diode bridge rectifier circuit.The intercoupling type low-pass filter circuit is connected and composed by piezo-resistance VR1, capacitor C1, C2, co-mode coil L1, and other uses capacitor C3, C4 can reduce the high-frequency electromagnetic interference of electric ballast to other electronic equipments.D1 to D4 connects and composes diode bridge rectifier circuit by diode, finishes the conversion of AC to DC, and when input voltage was 120V and 220V, the output crest voltage was respectively 150V and 300V.
Passive power factor correcting circuit 12, in three embodiment, also adopted identical circuit structure, adopt the current follow-up circuit of typical no high-frequency energy feedback fraction, connect and compose by diode D5 to D7, resistance R 1, capacitor C 5, C6, be used to improve utilance and the interference that reduces electrical network to electrical network, this partial circuit can be brought up to power factor more than 0.96.
Inverter circuit 13 is said on the whole, has all adopted modification Lao Yeer sine wave oscillation circuit in three embodiment, but when the electric ballast input voltage is the 120V interchange, adopts push-pull circuit, implements circuit shown in Fig. 2,3; When the electric ballast input voltage is the 220V interchange, adopt half bridge circuit, implement circuit as shown in Figure 4.
The starting circuit 14 that boosts also is the transformer output circuit, wherein is respectively applied for 120V, 220V fluorescent lamp by Fig. 2, the starting circuit that boosts shown in Figure 4, then is used for the 120V gaseous discharge lamp by the starting circuit that boosts shown in Figure 3.
Referring to Fig. 2, connect and compose push-pull type modification Lao Yeer sine wave oscillation circuit by first, second MOS transistor Q1, Q2 and peripheral cell L2, R2, R3, R4, Z1, C7 etc.Electric current produces sinusoidal signals through inductance L 2, is connected to form push-pull type modification Lao Yeer vibration with main coil N1, N2, the capacitor C7 of metal-oxide-semiconductor Q1, Q2, primary winding, will import square wave (50-60Hz) and become high_frequency sine wave (greater than 90KHz).The starting circuit that boosts adopts transformer T1, T2, adopts a plurality of isolating transformer outputs, and its elementary winding comprises main coil N1, N2, N7, N8 and two secondary coil N3, N4 that realization is boosted and exported, and wherein N1 is in parallel with N7, and N2 is in parallel with N8.Secondary coil N3, N4, make it alternate conduction and end for first, second MOS transistor Q1, Q2 alternately provide grid voltage by resistance R 3, R4.Secondary winding N5, N6, N9, N10 series connection, winding N6, N10 connect the filament at fluorescent lamp tube two ends, and filament is carried out pipeline start up by preheating, through preheating, make negative electrode possess the good electron launching condition, can reduce starting resistor and prolonging lamp tube service life significantly.Capacitor C 8 can be used for adjusting power output.
In the diagram circuit; inductance L 2 one end ground connection only need be born the voltage less than 200V (peak-to-peak value), and its negative feedback; can protect metal-oxide-semiconductor; damage because of instantaneous overcurrent causes the metal-oxide-semiconductor grid when avoiding starting shooting, moreover, can make ballast that withstand voltage, the inductance value of inductance are required to reduce greatly inductance L 2 one end ground connection; so can use light and handy magnetic material; thereby help reducing the volume of ballast, reduce cost, product reliability is improved.Adopt the output of a plurality of isolating transformers, elementary winding parallel connection, secondary winding series connection both can guarantee can not break down when the output short circuit, volume of transformer is dwindled and then reduce product cost.
Referring to Fig. 3, only be to have lacked in the secondary winding filament preheating circuit (few N6, N10) with the difference of Fig. 2 circuit, be directly used in and start the 120V gaseous discharge lamp.
Referring to Fig. 4, by cotype inductance L 2, first, second MOS transistor Q1, Q2 that source, drain electrode are connected in series and main winding N1, the N6 of transformer T1, T2, capacitor C11 etc. connects and composes semibridge system modification Lao Yeer sine wave oscillation circuit, will import square wave and become high_frequency sine wave.The primary and secondary coil of cotype inductance L 2 connects the positive and negative extreme of passive power factor correcting circuit and semibridge system modification Lao Yeer sine wave oscillation circuit respectively.Secondary coil N2, the N3 of transformer T1, the elementary winding of T2 provides grid voltage by resistance R 3, R4 for first, second metal-oxide-semiconductor respectively.Resistance R 2, capacitor C 10, diode D10 and D9 connect and compose circuits for triggering, by to the discharging and recharging of capacitor C 10, and for the second MOS transistor Q2 provides the triggering starting resistor, and the holding circuit vibration.Diode D8, resistance R 6 provide discharge path for capacitor C 10 when Q2 ends.The passive power factor correcting circuit output is connected with capacitor C7, C8, and its serial connection point is the current potential output mid point end of current follow-up circuit, output midpoint potential.
The starting circuit that boosts adopts transformer T1, T2, adopts a plurality of isolating transformer outputs, and its elementary winding comprises main coil N1, N6 and two secondary coil N2, N3 that realization is boosted and exported, and wherein N1 is in parallel with N6.Secondary winding N4, N7, N5, N8 series connection, winding N8, N5 connect the filament at fluorescent lamp tube two ends, and filament is carried out pipeline start up by preheating, through preheating, make negative electrode possess the good electron launching condition, can reduce starting resistor and prolonging lamp tube service life significantly.Capacitor C 12 can be used for adjusting power output.
In the diagram circuit, between the mid point of circuit anode and Q1, Q2, be added with resistance R 5, make Q2 after triggering, form self-oscillation and normal the startup easily, guarantee the normal startup and the work of ballast, when turning off the light, also can scintillation not occur because of capacitor C 10 discharges.
Electric ballast of the present utility model, on the basis of existing electronic ballast for gas discharging lamp circuit structure, realized that through improving design fluorescent lamp and gaseous discharge lamp are dual-purpose, and under the condition that guarantees existing electric ballast performance and parameter, further reduce cost and improve the quality of ballast.Experimental result shows that enforcement circuit of the present utility model all can be up to state standards at aspects such as power factor, harmonic content and crest compare, and has occupied the advantage of widening market because of its dual-purpose characteristics.
Claims (10)
1. fluorescent lamp/gaseous discharge lamp dual-purpose electronic ballast is characterized in that: comprise DC power supply circuit, passive power factor correcting circuit, the inverter circuit and the starting circuit that boosts; Passive power factor correcting circuit connects DC power supply circuit output, and inverter circuit connects passive power factor correcting circuit output, and the starting circuit that boosts connects inverter circuit output; The starting circuit that boosts connects gaseous discharge lamp or Filament of fluorescent lamp.
2. a kind of fluorescent lamp according to claim 1/gaseous discharge lamp dual-purpose electronic ballast, it is characterized in that: described inverter circuit is a push-pull type modification Lao Yeer sine wave oscillation circuit, and the described starting circuit that boosts is the transformer output circuit that is made of first, second isolating transformer.
3. a kind of fluorescent lamp according to claim 2/gaseous discharge lamp dual-purpose electronic ballast, it is characterized in that: described push-pull type modification Lao Yeer sine wave oscillation circuit is by first MOS transistor, second MOS transistor, inductance, capacitor, the main coil of the main coil of the elementary winding of first isolating transformer and the elementary winding of second isolating transformer connects and composes, first, the main coil of the elementary winding of second isolating transformer is connected in parallel, and with first, the drain electrode of second MOS transistor is connected in parallel and is connected in parallel with electric capacity, two secondary coils of the elementary winding of first isolating transformer connect first by resistance, the grid of second MOS transistor, first, the source electrode of second MOS transistor connects inductance one end, and the inductance other end connects earth terminal; The secondary winding of first, second isolating transformer is connected in series, and is serially connected with for the coil windings that connects fluorescent lamp two ends filament.
4. a kind of fluorescent lamp according to claim 2/gaseous discharge lamp dual-purpose electronic ballast, it is characterized in that: described push-pull type modification Lao Yeer sine wave oscillation circuit is by first MOS transistor, second MOS transistor, inductance, capacitor, the main coil of the main coil of the elementary winding of first isolating transformer and the elementary winding of second isolating transformer connects and composes, first, the main coil of the elementary winding of second isolating transformer is connected in parallel, and with first, the drain electrode of second MOS transistor is connected in parallel and is connected in parallel with electric capacity, two secondary coils of the elementary winding of first isolating transformer connect first by resistance, the grid of second MOS transistor, first, the source electrode of second MOS transistor connects inductance one end, and the inductance other end connects earth terminal; The secondary winding of first, second isolating transformer is connected in series and connects gaseous discharge lamp.
5. according to claim 2 or 3 or 4 described a kind of fluorescent lamp/gaseous discharge lamp dual-purpose electronic ballasts, it is characterized in that: the input of described DC power supply circuit connects the 120V AC power.
6. a kind of fluorescent lamp according to claim 1/gaseous discharge lamp dual-purpose electronic ballast, it is characterized in that: described inverter circuit is a semibridge system modification Lao Yeer sine wave oscillation circuit, and the described starting circuit that boosts is the transformer output circuit that is made of first, second isolating transformer.
7. a kind of fluorescent lamp according to claim 6/gaseous discharge lamp dual-purpose electronic ballast is characterized in that: described semibridge system modification Lao Yeer sine wave oscillation circuit is connected and composed by the main coil of first MOS transistor, second MOS transistor, the inductance that comprises the primary and secondary coil, capacitor, the elementary winding of first isolating transformer and the main coil of the elementary winding of second isolating transformer; The main coil of the elementary winding of first, second isolating transformer is connected in parallel and is connected in parallel capacitor; First, second MOS transistor is connected in series, and the serial connection point connects first, second isolating transformer main coil one end, and connects the positive terminal of passive power factor correcting circuit by resistance; First, second isolating transformer main coil other end, the current potential that connects passive power factor correcting circuit is exported the mid point end; The primary and secondary coil of inductance connects the positive terminal and the negative pole end of passive power factor correcting circuit and semibridge system modification Lao Yeer sine wave oscillation circuit respectively; Two secondary coils of the elementary winding of first isolating transformer connect the grid of first, second MOS transistor by resistance; The leakage of first, second MOS transistor, source electrode connect the positive terminal and the negative pole end of semibridge system modification Lao Yeer sine wave oscillation circuit respectively; The secondary winding of first, second isolating transformer is connected in series, and is serially connected with for the coil windings that connects fluorescent lamp two ends filament.
8. a kind of fluorescent lamp according to claim 7/gaseous discharge lamp dual-purpose electronic ballast, it is characterized in that: the current potential output mid point end of described passive power factor correcting circuit is the series side of two capacitors, and the other end of two capacitors connects the output of described passive power factor correcting circuit.
9. a kind of fluorescent lamp according to claim 7/gaseous discharge lamp dual-purpose electronic ballast, it is characterized in that: also include the trigger starting circuit of MOS transistor, connect and compose by first resistor, second resistor, capacitor, bidirectional diode, diode; First resistor serial connection capacitor, be attempted by between the positive terminal and negative pole end of semibridge system modification Lao Yeer sine wave oscillation circuit, its serial connection is put the grid that connects a MOS transistor by bidirectional diode, with the series connection point that is connected described first, second MOS transistor by diode; Second resistor is connected between the negative pole end of this serial connection point and semibridge system modification Lao Yeer sine wave oscillation circuit.
10. according to claim 6 or 7 or 8 or 9 described a kind of fluorescent lamp/gaseous discharge lamp dual-purpose electronic ballasts, it is characterized in that: the input of described DC power supply circuit connects the 220V AC power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03242397 CN2612205Y (en) | 2003-03-26 | 2003-03-26 | Dual-purpose electronic ballast for fluorescent lamp and gas discharge lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03242397 CN2612205Y (en) | 2003-03-26 | 2003-03-26 | Dual-purpose electronic ballast for fluorescent lamp and gas discharge lamp |
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| Publication Number | Publication Date |
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| CN2612205Y true CN2612205Y (en) | 2004-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 03242397 Expired - Fee Related CN2612205Y (en) | 2003-03-26 | 2003-03-26 | Dual-purpose electronic ballast for fluorescent lamp and gas discharge lamp |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102316653A (en) * | 2011-09-05 | 2012-01-11 | 日银Imp微电子有限公司 | Electronic ballast for cold cathode fluorescent lamp |
| CN101626195B (en) * | 2008-07-11 | 2012-02-29 | 广州金升阳科技有限公司 | Micropower power supply converting circuit |
| CN109121272A (en) * | 2018-09-15 | 2019-01-01 | 徐宇伟 | A kind of discharge lamp with low-voltage intelligent formula starting ballasting circuit |
-
2003
- 2003-03-26 CN CN 03242397 patent/CN2612205Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101626195B (en) * | 2008-07-11 | 2012-02-29 | 广州金升阳科技有限公司 | Micropower power supply converting circuit |
| CN102316653A (en) * | 2011-09-05 | 2012-01-11 | 日银Imp微电子有限公司 | Electronic ballast for cold cathode fluorescent lamp |
| CN102316653B (en) * | 2011-09-05 | 2013-08-14 | 日银Imp微电子有限公司 | Electronic ballast for cold cathode fluorescent lamp |
| CN109121272A (en) * | 2018-09-15 | 2019-01-01 | 徐宇伟 | A kind of discharge lamp with low-voltage intelligent formula starting ballasting circuit |
| CN109121272B (en) * | 2018-09-15 | 2024-04-02 | 徐宇伟 | Discharge lamp with low-voltage intelligent starting ballasting circuit |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING TAITONG LIGHTING TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: BEIJING TAIGE FENGLIAN TECHNOLOGY DEVELOPMENT CO., LTD. Effective date: 20050121 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20050121 Address after: 100085 Beijing city Haidian Qinghe Xiao Ying Dong Lu Hou Tun Bada Industrial Park Patentee after: Taitong Lighting Technology Co., Ltd., Beijing Address before: 100085, Beijing, Haidian District, 11 clear road 2877 box, Beijing tiger Feng Technology Development Co., Ltd. Patentee before: Taigefenglian Sci-Tech Development Co Ltd |
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| 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 |