CN2364654Y - Electronic ballast for high intensity gas discharge lamp - Google Patents
Electronic ballast for high intensity gas discharge lamp Download PDFInfo
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- CN2364654Y CN2364654Y CN 99200370 CN99200370U CN2364654Y CN 2364654 Y CN2364654 Y CN 2364654Y CN 99200370 CN99200370 CN 99200370 CN 99200370 U CN99200370 U CN 99200370U CN 2364654 Y CN2364654 Y CN 2364654Y
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Abstract
The utility model relates to an electronic ballast suitable for high intensity gas discharge lamps, which comprises a gas discharge lamp main loop formed by the connection of a low-pass filtering rectification circuit, a power factor correction circuit, a constant current source circuit, a pulse width modulation circuit, a constant current drive circuit, a full bridge type power output circuit and a high voltage starting ballasting circuit, and a resonance starting and ballasting control circuit of the main loop, which is formed by the connection of a low frequency oscillation circuit and an isolation drive circuit. A constant current source provides power for the full bridge type power output circuit. The ballast has the characteristics of high power factor, simple structure, low cost and long service life.
Description
The utility model relates to a kind of electric lighting device, relates to a kind of being suitable for and the matching used electric ballast of high-intensity gas discharge lamp or rather.
High intensity discharge (HID) lamp, include halide lamp, mercury lamp, sodium vapor lamp etc., compare with incandescent lamp, fluorescent lamp, iodine-tungsten lamp, characteristics such as energy-conservation, that volume is little, luminous efficiency is high, spectrum is good, the life-span is long are arranged, thereby become the preferred light source of shop, highway, square, stadiums even family gradually.Also become the problem that each light source production unit is studied with the electric ballast of the matching used high frequencyization of HID lamp, electronization, miniaturization.
At present, abroad some developed countries have developed the small-sized all-electronic HID electronic lamp ballast of lighting with the 20-50KHz high frequency square wave, but have only the product of middle low power such as 70W to come out, and cost an arm and a leg.Domesticly then substantially also continue to use at present big and frequency inductance formula ballast that heaviness and power factor are low, noise is big.
The key technology of HID lamp electronic ballast roughly comprises three aspects: the one, and power factor (PF), must be in order to solve the power factor (PF) problem in the inner realization of electric ballast voltage stabilizing, the problem that just luminous shakiness can not take place even extinguish when the voltage of electric power system produces fluctuation is concentrated the problem that also can not occur interfering with each other when lighting at a plurality of electric ballasts like this; The 2nd, the life-span of ballast self, because the life-span of ballast self is related to the survival ability of product, and the principal element that influences the electric ballast life-span is the HF switch loss of power output tube, this be because pipe work temperature rise under the high-frequency current more than the 20KHz too high due to; The 3rd, the damage of power tube needs the above high-voltage pulse of 4KV because starter is lighted the HID lamp, and this high-voltage pulse can add to very easily breakdown power pipe of power tube two ends by circuit loop.
In order to solve the problem of above-mentioned three aspects, many electric ballast products have to do suitable complex circuit design, but effect is unsatisfactory, cause product cost to rise because of circuit is complicated on the contrary, more are unfavorable for the practicability of product.
On the other hand, the high frequency that existing electronic ballast for gas discharging lamp is chosen in 20KHz-50KHz mostly starts down, has the more serious sound problem of shaking, and the gaseous discharge lamp of different size has different sound to shake a little, also can cause blow-out when serious.If adopt low frequency (50Hz-100Hz) mode to work, though the noise problem of can solution sound shaking, the volume of output power transformer is especially big, causes the electric ballast large body and heavy mass.The problems referred to above are perplexing the technical staff in electronic ballast for gas discharging lamp field for a long time always.
The purpose of this utility model is a kind of electronic ballast for high-strength gas discharge lamp of design, it is the improvement design of making at above-mentioned realistic problem, make and the matching used electric ballast of high-intensity gas discharge lamp, under low frequency, start, change and cut, the volume of output power transformer is also little simultaneously, and has power factor height, simple, the low characteristics that reach long working life of cost of circuit structure.
The purpose of this utility model is to realize like this, a kind of electronic ballast for high-strength gas discharge lamp, comprise resonance build-up of luminance, the ballast control circuit of gaseous discharge lamp major loop that is connected with gaseous discharge lamp and the major loop that is connected with the gaseous discharge lamp major loop, it is characterized in that: described gaseous discharge lamp major loop is connected to form by low-pass filtering rectification circuit, circuit of power factor correction, constant-current source circuit, pulse-width modulation circuit, constant current source driving circuit, full-bridge type power output circuit and high pressure starter ballast circuit; Resonance build-up of luminance, the ballast control circuit of described major loop are connected to form by low-frequency oscillatory network, isolated drive circuit; Described low-pass filtering rectification circuit, circuit of power factor correction, constant-current source circuit and full-bridge type power output circuit are linked in sequence, described pulse-width modulation circuit connects constant current source driving circuit, constant current source driving circuit output connects constant-current source circuit, described low-frequency oscillatory network connects isolated drive circuit, isolated drive circuit output connects described full-bridge type power output circuit, described high pressure starter ballast circuit connects described full-bridge type power output circuit, and described constant-current source circuit is connected described pulse-width modulation circuit with voltage sample point in the full-bridge type power output circuit connection line.
Also include self-powered circuit, self-powered circuit is connected with described circuit of power factor correction, and the power output end of self-powered circuit connects described pulse-width modulation circuit, low-frequency oscillatory network and isolated drive circuit.
Described constant-current source circuit is by MOS transistor, inductor, diode, resistor R 24, R12 and capacitor connect and compose, resistor R 24 1 ends connect described constant-current drive circuit, resistor R 24 other ends connect the grid of MOS transistor, the source electrode of MOS transistor connects described circuit of power factor correction, the drain electrode of MOS transistor connects inductor one end, diode cathode and described constant-current drive circuit, the inductor other end connects electric capacity one end and connects described full-bridge type power output circuit, the capacitor other end and diode cathode connect the earth terminal of resistor R 12 1 ends and low-pass filtering rectification circuit and circuit of power factor correction, and resistor R 12 other ends connect the control signal end of full-bridge type power output circuit and described pulse-width modulation circuit.
Described isolated drive circuit is made up of two integrated driver for isolating, the positive negative pulse stuffing output of described low-frequency oscillator connects the input of two integrated driver for isolating respectively, the output of two integrated driver for isolating connect to form respectively the full-bridge type power output circuit the input of four power tubes.
Described constant-current drive circuit is linked in sequence by pulse transformer, diode full-bridge circuit, diode half-wave rectifying circuit and transistor secondary hand off circuit and forms.
Electronic ballast for high-strength gas discharge lamp of the present utility model, with the positive and negative square-wave pulse of low-frequency oscillator output work dominant frequency after isolation drive as the full-bridge type power output circuit, with the pulse width modulator that is linked in sequence, pulse transformer, the diode full-bridge circuit, diode half-wave rectifying circuit and transistor secondary hand off circuit provide constant-current driving for constant-current source circuit, and by the current sample in full-bridge type power output circuit and the constant-current source circuit link circuit being formed control to power output, at the beginning of the output power transformer of full-bridge type power output circuit, secondary coil is respectively several circles, tens of circles, small and light.
Embodiment and accompanying drawing below in conjunction with an all-electronic HID lamp electronic ballast of lighting with low frequency 200Hz further specify technology of the present utility model.
Fig. 1 is the electronic ballast for high-strength gas discharge lamp theory diagram
Fig. 2 is the enforcement circuit diagram of theory diagram shown in Figure 1
Referring to Fig. 1, electric ballast 1 is used to light gaseous discharge lamp 2.Electric ballast 1 includes the gaseous discharge lamp major loop that connected to form by low-pass filtering rectification circuit 10, circuit of power factor correction 11, constant-current source circuit 12, full-bridge type power output circuit 13, high pressure starter ballast circuit 14, pulse-width modulation circuit 15, constant current source driving circuit 16 and resonance build-up of luminance, the ballast control circuit of the major loop that connected to form by low-frequency oscillatory network 17, isolated drive circuit 18.19 is self-powered circuits among the figure.In the connection line of constant-current source circuit 12 and full-bridge type power output circuit 13, by sample resistance sampling circuit electric current and control pulse-width modulation circuit 15, keep the constant current output of constant-current source circuit 12 again through constant-current drive circuit 16, thus the power output of control full-bridge type power output circuit 13.
Referring to Fig. 2, connect and compose low-pass filtering rectification circuit 10 in conjunction with Fig. 1 by thermistor VR1, capacitor C 1, C2-C5, diode D1-D4 and transformer L1 etc.
Connect and compose circuit of power factor correction 11 by integrated power factor correcting sheet IC1 (MC33262) and peripheral cell BG1 thereof etc., it shown in the figure typical C OS Φ circuit, form the P.F.C circuit of power factor correction by the tandem switching power supply, IC1 wherein, BG1 adopt PFC formula Zero Current Switch technology, L2, D5, E2 etc. form single-ended reverse exciting boost type voltage stabilizing circuit (LDC), make the D5 output end voltage be stabilized in direct current 400V, resistance R 11, R10 are connected 1 pin of IC1 with the dividing potential drop of R4, as the voltage sample control of power factor correction sheet IC1.
Connect and compose pulse-width modulation circuit 15 by integrated pulse-width modulation sheet IC2 (SG3524N) and peripheral cell thereof, modulation exchanges, external resistance R 28 and capacitor C 13 are used to regulate its self-oscillation frequency, by isolating transformer T2, diode D14, D15, D16, transistor P1 etc. connects and composes constant current source driving circuit 16, the both-end pulse-width signal of IC2 output is transformed to single-ended signal exports to constant-current source circuit 12, the loop current that sample resistance R12 gathers from constant-current source circuit 12 is sent 4 of pulse-width modulation circuit IC2,5 pin (5 pin ground connection), as control signal, transistor P1 has the effect of the electric charge of releasing fast, to improve operating rate.
Metal-oxide-semiconductor BG2, inductor L3, diode D8, resistance R 24, R12 and capacitor C 9 etc. connect and compose constant-current source circuit 12, form the major loop constant current of full-bridge type power output circuit, obtain constant-current driving voltage at the C9 two ends, be 13 power supplies of full-bridge type power output circuit.
Operational amplifier IC5 (LM358) and peripheral cell thereof are connected into inverting integrator, connect and compose low-frequency oscillatory network 17, a road of its output square-wave signal directly send the input of isolation drive sheet IC4 (IR2111), and the input of isolation drive sheet IC3 (IR2111) is sent on another road of its output square-wave signal behind inverter anti-phase (180 degree).The isolated drive circuit 14 that connects and composes by two isolation drive sheet IC3, IC4 and peripheral cell thereof, drive full-bridge type power driving circuit 13, make the metal-oxide-semiconductor of forming full-bridge type power driving circuit 13, BG3, BG4 and BG5, BG6 alternate conduction, end, the intermediate voltage output of IC3 or IC4 two outputs then connects electric capacity E3, E4 and diode D11, D12 etc.
Resistance R 21, R22, bidirectional diode D9, D10, capacitor C 11, C12, inductance L 4, transformer T1 etc. are connected into series resonant circuit and constitute high pressure build-up of luminance ballasting circuit 14, and twice level coil one ends of transformer T1 connect gaseous discharge lamp 2.The voltage ratio of transformer T1 is 1: 10 among the embodiment, and primary coil can be the 2-3 circle, and secondary coil then is about 20 circles.
Electric ballast is in when start, and pulse-width modulation circuit IC2 is according to the pressure drop on the sample resistance R12, the duty ratio maximum of output pulse signal (full pulsewidth output), and constant-current source circuit 12 is equivalent to the 400V direct circuit, is 13 power supplies of full-bridge type power output circuit; When gaseous discharge lamp resonance build-up of luminance, starting resistor moment can reach 4000V, in case and behind the gaseous discharge lamp build-up of luminance, because control end 4 pin of pulse-width modulation circuit IC2 connect sample resistance R12 one end, sampling voltage raises because of the rising of loop current, the pulsewidth of pulse-width modulation circuit IC2 output signal reduces thereupon, and and then adjust BG2 input signal duty of ratio in the constant-current source circuit, promptly reduce the ON time of BG2, can keep its constant current output, make the output voltage of BG2 this moment still can remain on 400V, after the L3 step-down, keep the normal ignition of gaseous discharge lamp (less than 200V).
Transformer L2, diode D6, D7 and three terminal integrated voltage stabilizer V1 etc. connect and compose self-powered circuit 10, and output 12V direct current is pulse-width modulation circuit IC2, low-frequency oscillatory network IC5 and isolated drive circuit IC3, IC4 power supply.
Electric ballast of the present utility model adopts simple but novel circuit design, only use conventional integrated and general components and parts, solved the technical problem of electronic ballast of high intensity gas discharge lamp three aspects simultaneously, with the noiseless substantially noise that shakes of low-frequency start, and the volume of output power transformer is very little, the embodiment sample is through the test of national electric light source inspection center, power factor can reach 0.998, all other indexs are also all above inductance type ballast, be used with the metal halide lamp of 70W, received gratifying effect, when supply power voltage changes between 220V ± 20%V, but the discharge lamp steady operation, no blow-out phenomenon.
Claims (5)
1. electronic ballast for high-strength gas discharge lamp, comprise resonance build-up of luminance, the ballast control circuit of gaseous discharge lamp major loop that is connected with gaseous discharge lamp and the major loop that is connected with the gaseous discharge lamp major loop, it is characterized in that: described gaseous discharge lamp major loop is connected to form by low-pass filtering rectification circuit, circuit of power factor correction, constant-current source circuit, pulse-width modulation circuit, constant-current drive circuit, full-bridge type power output circuit and high pressure starter ballast circuit; Resonance build-up of luminance, the ballast control circuit of described major loop are connected to form by low-frequency oscillatory network, isolated drive circuit; Described low-pass filtering rectification circuit, circuit of power factor correction, constant-current source circuit and full-bridge type power output circuit are linked in sequence, described pulse-width modulation circuit connects constant current source driving circuit, constant current source driving circuit output connects constant-current source circuit, described low-frequency oscillatory network connects isolated drive circuit, isolated drive circuit output connects described full-bridge type power output circuit, described high pressure starter ballast circuit connects described full-bridge type power output circuit, and described constant-current source circuit is connected described pulse-width modulation circuit with voltage sample point in the full-bridge type power output circuit connection line.
2. electronic ballast for high-strength gas discharge lamp according to claim 1, it is characterized in that: also include self-powered circuit, self-powered circuit is connected with described circuit of power factor correction, and the power output end of self-powered circuit connects described pulse-width modulation circuit, low-frequency oscillatory network and isolated drive circuit.
3. electronic ballast for high-strength gas discharge lamp according to claim 1, it is characterized in that: described constant-current source circuit is by MOS transistor, inductor, diode, resistor R 24, R12 and capacitor connect and compose, resistor R 24 1 ends connect described constant-current drive circuit, resistor R 24 other ends connect the grid of MOS transistor, the source electrode of MOS transistor connects described circuit of power factor correction, the drain electrode of MOS transistor connects inductor one end, diode cathode and described constant-current drive circuit, the inductor other end connects electric capacity one end and connects described full-bridge type power output circuit, the capacitor other end and diode cathode connect the earth terminal of resistor R 12 1 ends and low-pass filtering rectification circuit and circuit of power factor correction, and resistor R 12 other ends connect the control signal end of full-bridge type power output circuit and described pulse-width modulation circuit.
4. electronic ballast for high-strength gas discharge lamp according to claim 1, it is characterized in that: described isolated drive circuit is made up of two integrated driver for isolating, the positive negative pulse stuffing output of described low-frequency oscillator connects the input of two integrated driver for isolating respectively, the output of two integrated driver for isolating connect to form respectively the full-bridge type power output circuit the input of four power tubes.
5. electronic ballast for high-strength gas discharge lamp according to claim 1 is characterized in that: described constant-current drive circuit is linked in sequence by pulse transformer, diode full-bridge circuit, diode half-wave rectifying circuit and transistor secondary hand off circuit and forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99200370 CN2364654Y (en) | 1999-01-18 | 1999-01-18 | Electronic ballast for high intensity gas discharge lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99200370 CN2364654Y (en) | 1999-01-18 | 1999-01-18 | Electronic ballast for high intensity gas discharge lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2364654Y true CN2364654Y (en) | 2000-02-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99200370 Expired - Fee Related CN2364654Y (en) | 1999-01-18 | 1999-01-18 | Electronic ballast for high intensity gas discharge lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2364654Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006042447A1 (en) * | 2004-10-22 | 2006-04-27 | Xiamen Torstar Lighting Co., Ltd | An electronic ballast and its ic supply method |
| CN100396164C (en) * | 2002-12-24 | 2008-06-18 | 常鹏 | Digital high-strength gas discharging light adapter |
| CN101022690B (en) * | 2006-02-13 | 2010-09-01 | 史俊生 | Electronic ballast |
| CN101128079B (en) * | 2006-08-16 | 2010-12-15 | 联昌电子企业股份有限公司 | Light tube driving system using electric isolation control |
| CN102098858A (en) * | 2011-01-18 | 2011-06-15 | 武汉和隆电子有限公司 | Starter of gas discharge lamp |
| CN101702860B (en) * | 2009-08-04 | 2012-09-05 | 宁波凯耀电器制造有限公司 | Lighting control circuit of electronic ballast |
| CN103477547A (en) * | 2011-04-22 | 2013-12-25 | 皇家飞利浦有限公司 | Power supply circuit for a PFC converter |
| CN106954302A (en) * | 2017-03-30 | 2017-07-14 | 四川万康节能环保科技有限公司 | A kind of electronic energy-saving lamp controls circuits with double variable-pressures |
-
1999
- 1999-01-18 CN CN 99200370 patent/CN2364654Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100396164C (en) * | 2002-12-24 | 2008-06-18 | 常鹏 | Digital high-strength gas discharging light adapter |
| WO2006042447A1 (en) * | 2004-10-22 | 2006-04-27 | Xiamen Torstar Lighting Co., Ltd | An electronic ballast and its ic supply method |
| CN101022690B (en) * | 2006-02-13 | 2010-09-01 | 史俊生 | Electronic ballast |
| CN101128079B (en) * | 2006-08-16 | 2010-12-15 | 联昌电子企业股份有限公司 | Light tube driving system using electric isolation control |
| CN101702860B (en) * | 2009-08-04 | 2012-09-05 | 宁波凯耀电器制造有限公司 | Lighting control circuit of electronic ballast |
| CN102098858A (en) * | 2011-01-18 | 2011-06-15 | 武汉和隆电子有限公司 | Starter of gas discharge lamp |
| CN102098858B (en) * | 2011-01-18 | 2013-04-24 | 武汉和隆电子有限公司 | Starter of gas discharge lamp |
| CN103477547A (en) * | 2011-04-22 | 2013-12-25 | 皇家飞利浦有限公司 | Power supply circuit for a PFC converter |
| US9379626B2 (en) | 2011-04-22 | 2016-06-28 | Koninklijke Philips Electronics N.V. | Power supply circuit for a PFC converter |
| CN106954302A (en) * | 2017-03-30 | 2017-07-14 | 四川万康节能环保科技有限公司 | A kind of electronic energy-saving lamp controls circuits with double variable-pressures |
| CN106954302B (en) * | 2017-03-30 | 2019-01-25 | 江苏恒通照明集团有限公司 | A kind of double variable-pressure control circuits of electronic energy-saving lamp |
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| 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 |