CN101772248A - General constant-power electronic ballast for high-intensity gas discharge lamp - Google Patents

General constant-power electronic ballast for high-intensity gas discharge lamp Download PDF

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Publication number
CN101772248A
CN101772248A CN201010118265A CN201010118265A CN101772248A CN 101772248 A CN101772248 A CN 101772248A CN 201010118265 A CN201010118265 A CN 201010118265A CN 201010118265 A CN201010118265 A CN 201010118265A CN 101772248 A CN101772248 A CN 101772248A
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circuit
capacitor
voltage
electronic ballast
resistance
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CN201010118265A
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唐礼言
田琳
蒲道杰
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唐礼言
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Priority to CN201010118265A priority Critical patent/CN101772248A/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps

Abstract

The invention discloses a general constant-power electronic ballast for a high-intensity gas discharge lamp. The electronic ballast is characterized in that: the electronic ballast adopts a three-stage structure and consists of an active power factor correction (APFC) circuit, an average input current outer ring-based and peak current inner ring-based buck converter and a resonant full bridge inverter circuit; and 220V alternating current is filtered by EMI, the filtered alternating current is connected to the APFC circuit and converted into direct current, the direct current is converted into 0 to 150V adjustable direct current voltage by the buck converter, and the adjustable direct current voltage is converted into a frequency-adjustable alternating current square-wave voltage serving as an HID lamp driving signal by the resonant full bridge inverter circuit. The electronic ballast can obtain good constant-power characteristic and prolong the service life of an HID lamp, and can be matched with various HID lamps, including ceramic metal halide lamps, quartz metal halide lamps, high-voltage sodium lamps and the like.

Description

General constant-power electronic ballast for high-intensity gas discharge lamp
Technical field
The present invention relates to HID lamp constant-power electronic ballast, a kind of driving standard high-intensity gas discharge lamp driver of (comprising high-pressure sodium lamp, metal halide lamp) that is applicable to of more specifically saying so also is a ballast, belongs to the illumination electronic applications.
Background technology
High intensity discharge light source HID, as high-pressure sodium lamp HPS, metal halide lamp MH is that sixties development, the eighties form large-scale production, higher pressure mercury lamp light efficiency height (1~1.5 times), color rendering good (Ra>60), life-span was widely used in road, venue, large-scale illuminating engineering etc. more than 6000 hours.For making HID lamp (particularly MH) to room lighting development, the large-scale or miniaturization of HID lamp forward lamp power, photochromic stability (low colour temperature) are good, high-color rendering and extra long life direction develop.The match appliance annex has very important effect to the development of HID light source, and its research emphasis is the integral type electric ballast.Comprise solution: bear high pressure/heavy current impact, reduce temperature rise, secondary warm start and technical barriers such as high frequency acoustic resonance frequency, permanent power control.The main power circuit structure of existing HID electric ballast can be divided into two kinds, i.e. " tertiary structure " and " two-layer configuration " substantially.Wherein, " tertiary structure " is made up of PFC APFC, Buck reduction voltage circuit and bridge type inverse three partial circuits, and three partial circuits of this structure are independent separately, are independent of each other, and are simple and reliable, but cost is high slightly; " two-layer configuration " is made up of pfc circuit and two Buck inverter circuit, and two Buck inverter circuits should be finished step-down, finish the function of inversion again, and its structure is relatively complicated, and reliability is lower.Mainly adopt in the market " tertiary structure ".High-voltage gas discharging light has polytype, and as ceramic gold-halogen lamp, quartz metal halide lamp, high-pressure sodium lamp etc., prior art all is according to different light fixtures basically, and the ballast that design matches makes the of a great variety of ballast, brings inconvenience for production and use.
Summary of the invention
The present invention is the weak point for avoiding above-mentioned prior art to exist, a kind of general constant-power electronic ballast for high-intensity gas discharge lamp is provided, in the hope of obtaining constant output characteristic preferably, prolong the useful life of HID light fixture, and can be used with multiple HID light fixture, comprise ceramic gold-halogen lamp, quartz metal halide lamp and high-pressure sodium lamp etc.
Technical solution problem of the present invention adopts following technical scheme:
The design feature of HID constant-power electronic ballast of the present invention is:
The design feature of general constant-power electronic ballast for high-intensity gas discharge lamp of the present invention is to adopt tertiary structure, by the APFC circuit of power factor correction, form based on Buck buck converter that encircles in average current input outer shroud and the peak current and resonance full bridge inverter; 220V exchanges input described APFC circuit of power factor correction of access after EMI filtering and is converted to direct current, converts the adjustable dc voltage of 0-150V to, is converted to the ac square-wave voltage of frequency adjustable as HID lamp drive signal by described resonance full bridge inverter again through described Buck buck converter again.
The design feature of general constant-power electronic ballast for high-intensity gas discharge lamp of the present invention also is: described APFC circuit of power factor correction comprises:
The electromagnetic interface filter of forming by fuse F1, capacitor C 2, C3, inductance L 2;
The full bridge rectifier of forming by diode D1, D3, D4, D5;
Temperature switch S1, PFC inductance L 1, switching tube Q1, fast recovery diode D2, electrochemical capacitor C9, C10 and control chip IC1;
The ac voltage detection circuit of forming by resistance R 1, R3 and capacitor C 6;
The auxiliary starting circuit of forming by resistance R 4 and capacitor C 8;
The output voltage detecting circuit of forming by resistance R 7, R8, R9;
The accessory power supply and the inductance zero cross detection circuit that constitute by diode D6, voltage stabilizing didoe ZD1, capacitor C 7 and resistance R 11;
The PI correcting circuit that constitutes by resistance R 2, R10 and capacitor C 4.
Described Buck buck converter is to constitute the average current input outer shroud by inductance L 3, metal-oxide-semiconductor Q4, sustained diode 9, capacitor C 25, sample resistance R35, single order low-pass filtering link R41, C19 and amplifier OP1; Constitute in the peak current by comparator C OMP1 and to encircle;
Wherein, described sample resistance R35 is the metal-oxide-semiconductor Q4 current sampling resistor that is connected in the loop, changes the current signal in the metal-oxide-semiconductor Q4 into pulse voltage signal, and its pulse amplitude is directly proportional with the output current of ballast, as the feedback signal of encircling in the peak current; The low-pass filtering link that resistance R 41 and capacitor C 19 constitute is level and smooth direct current signal with the shift pulse signal of sample resistance R35, described direct current signal is directly proportional with the average current input of described Buck circuit, with the feedback signal of described direct current signal as the average current input outer shroud.
Described resonance full bridge inverter is to constitute full bridge inverter by metal-oxide-semiconductor Q5, Q6, Q7 and Q8, constitute the resonance start-up circuit by resonant inductance L4 and resonance capacitor C 28, C29, described full bridge inverter changes the direct current of described Buck circuit output into ac square-wave voltage, the excitation that provides to HID.
The present invention adopts tertiary structure, by the APFC circuit of power factor correction, form based on Buck buck converter that encircles in average current input outer shroud and the peak current and resonance full bridge inverter; 220V exchanges input described APFC circuit of power factor correction of access after EMI filtering and is converted to direct current, converts the adjustable dc voltage of 0-150V to, is converted to the ac square-wave voltage of frequency adjustable as HID lamp drive signal by the resonance full bridge inverter again through buck converter again.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, the output voltage of ballast of the present invention and electric current can change according to its supporting HID light fixture characteristic variations, can adaptive polytype HID light fixture, it is the light fixture adaptive control, belong to general HID electric ballast, can reduce product specification, save production, maintenance cost, adapt to industrialization production in enormous quantities.
When 2, ballast output voltage of the present invention was between the 60V-150V scope, its power output substantially constant had the power bracket than Daheng.The permanent power circuit control method that it is simple and reliable does not need multiplier circuit, can reduce cost, improve reliability.
3, the ac square wave changeable frequency of ballast of the present invention output can satisfy the switching of light fixture starting state and stable state, is operated in high frequency during startup, produces resonance high-voltage at the lamp two ends, during stable state, in order to suppress the sound phenomenon of shaking, is operated in low frequency.
Description of drawings
Fig. 1 is a three-level system structured flowchart of the present invention;
Fig. 2 is the permanent power of the present invention, light fixture adaptive control block diagram;
Fig. 3 starts the full-bridge converter circuit theory diagrams of network for band resonance of the present invention;
Fig. 4 imports EMI filtering and PFC circuit of power factor correction schematic diagram for the present invention;
Fig. 5 is Buck converter of the present invention and control circuit thereof, full bridge inverter schematic diagram;
Fig. 6 is Single-chip Controlling of the present invention, full bridge driving circuit schematic diagram.
Below pass through embodiment, and the invention will be further described in conjunction with the accompanying drawings.
Embodiment
Referring to Fig. 1, present embodiment adopts tertiary structure, 220V exchanges input and insert the APFC circuit after EMI filtering, be converted into the direct current about 400V, again through the Buck circuit convert thereof into the adjustable dc voltage of 0-150V, the ac square-wave voltage that is converted to frequency adjustable through band resonance full bridge inverter again drives HID.
Referring to Fig. 2, present embodiment is permanent power control and the light fixture adaptive control function with the constant current control that realizes the HID starting state based on the Buck buck converter that encircles in average current input outer shroud, the peak current, stable state.Comprise with metal-oxide-semiconductor Q4, diode D9, inductance L 3, capacitor C 25 has constituted basic Buck converter, resistance R 35 is for being connected on the current sampling resistor of the switching tube in the loop, change the current signal of metal-oxide-semiconductor Q4 into voltage signal, its waveform is seen Fig. 2, be pulse signal, its pulse amplitude is directly proportional with the output current of ballast, as the feedback signal of encircling in the peak current, realize the constant current control of starting state, when its through R41, become level and smooth direct current signal after the low-pass filtering link that C19 forms, its average current input with the Buck circuit is directly proportional, as the feedback signal of average current input outer shroud, realize permanent average current input control, because of Buck converter input voltage is constant is 400V, and power output equals input power, and permanent input current control can be equivalent to output constant power control.When the HID lamp had just started, equivalent resistance was very low, and ballast output voltage, power are less, and the outer ring filling of average current input has only that ring works in the peak current, and control HID starts with constant maximum current.Along with the rising of lamp resistance, lamp power increases gradually, and when reaching the power of setting, the average current input ring works, and the control ballast output power is constant, improves HID useful life and light efficiency performance thereof.
Referring to Fig. 3, the resonance full bridge inverter is to constitute full-bridge converter by metal-oxide-semiconductor Q5, Q6, Q7 and Q8, wherein, Q5, Q8 conducting simultaneously, Q6, Q7 conducting simultaneously, its drive signal provide by single-chip microcomputer that to convert, the direct current output of Buck buck converter to duty ratio be 50% square-wave signal.Its output constitutes the shunt load resonant circuit through resonant inductance L4, resonant capacitance C28, C29 and HID light fixture.By resonant inductance, capacitance parameter are set, make its quality factor very big.Before HID started, its equivalent resistance infinity was operated in by the Single-chip Controlling full-bridge converter near the resonance frequency of L4, C28, C29, formed the high pressure of 3-5KV at capacitor C 28, C29 two ends, lamp was punctured start.Start the back in order to suppress the intrinsic sound of the HID light fixture phenomenon of shaking, the control full-bridge converter is operated in low frequency state (100-250Hz).
Referring to Fig. 4, input EMI filtering and APFC APFC are to adopt inductive current critical flow Discontinuous Conduction mode control model.The 220V electric main is converted into the 400V direct voltage, realizes the unity power factor calibration function simultaneously, improve the system power factor greatly, reduce Harmonic Interference electrical network with this.
Electromagnetic interface filter shown in Figure 4, as to form by fuse F1, capacitor C 2, C3, inductance L 2; The full bridge rectifier of forming by diode D1, D3, D4, D5; Temperature switch S1, PFC inductance L 1, metal-oxide-semiconductor Q1, fast recovery diode D2, electrochemical capacitor C9, C10 and control chip IC1; The ac voltage detection circuit of forming by resistance R 1, R3 and capacitor C 6; The auxiliary starting circuit of forming by resistance R 4 and capacitor C 8; The output voltage detecting circuit of forming by resistance R 7, R8, R9; The accessory power supply and the inductance zero cross detection circuit that constitute by diode D6, voltage stabilizing didoe ZD1, capacitor C 7 and resistance R 11; The PI correcting circuit that constitutes by resistance R 2, R10 and capacitor C 4.
Fig. 5 is described to be Buck converter and control circuit thereof in the present embodiment, full bridge inverter detailed schematic diagram, and wherein the Buck circuit is converted into the adjustable direct current of 0-150V with APFC output, is converted into the ac square wave of 50% duty ratio again through full bridge inverter.
Figure 6 shows that Single-chip Controlling, full bridge driving circuit figure, by resistance R 19, R20, the Buck circuit output voltage testing circuit that capacitor C 12 is formed, and be converted to digital quantity by the inner AD of single-chip microcomputer, and judge the state of HID in view of the above, adjust the frequency of full bridge inverter in real time, resistance R 12, voltage stabilizing didoe ZD2, capacitor C 16 constitute the power supply circuits of single-chip microcomputer.Single-chip microcomputer sends the pwm signal of different frequency by PB0, PB1 mouth, amplify by triode Q2, Q3 after is the metal-oxide-semiconductor Q5-Q8 that the integrated driving chip of half-bridge drives full bridge inverter by IC2, IC3, wherein C14, C15 are the driving resistor that bootstrap capacitor, R25, R28, R23, R27 are respectively metal-oxide-semiconductor Q5-Q8.

Claims (4)

1. general constant-power electronic ballast for high-intensity gas discharge lamp, it is characterized in that adopting tertiary structure, by the APFC circuit of power factor correction, form based on Buck buck converter that encircles in average current input outer shroud and the peak current and resonance full bridge inverter; 220V exchanges input described APFC circuit of power factor correction of access after EMI filtering and is converted to direct current, converts the adjustable dc voltage of 0-150V to, is converted to the ac square-wave voltage of frequency adjustable as HID lamp drive signal by described resonance full bridge inverter again through described Buck buck converter again.
2. general constant-power electronic ballast for high-intensity gas discharge lamp according to claim 1 is characterized in that described APFC circuit of power factor correction comprises:
The electromagnetic interface filter of forming by fuse F1, capacitor C 2, C3, inductance L 2;
The full bridge rectifier of forming by diode D1, D3, D4, D5;
Temperature switch S1, PFC inductance L 1, switching tube Q1, fast recovery diode D2, electrochemical capacitor C9, C10 and control chip IC1;
The ac voltage detection circuit of forming by resistance R 1, R3 and capacitor C 6;
The auxiliary starting circuit of forming by resistance R 4 and capacitor C 8;
The output voltage detecting circuit of forming by resistance R 7, R8, R9;
The accessory power supply and the inductance zero cross detection circuit that constitute by diode D6, voltage stabilizing didoe ZD1, capacitor C 7 and resistance R 11;
The PI correcting circuit that constitutes by resistance R 2, R10 and capacitor C 4.
3. general constant-power electronic ballast for high-intensity gas discharge lamp according to claim 1 is characterized in that described Buck buck converter is to constitute the average current input outer shroud by inductance L 3, metal-oxide-semiconductor Q4, sustained diode 9, capacitor C 25, sample resistance R35, single order low-pass filtering link R41, C19 and amplifier OP1; Constitute in the peak current by comparator C OMP1 and to encircle;
Wherein, described sample resistance R35 is the metal-oxide-semiconductor Q4 current sampling resistor that is connected in the loop, changes the current signal in the metal-oxide-semiconductor Q4 into pulse voltage signal, and its pulse amplitude is directly proportional with the output current of ballast, as the feedback signal of encircling in the peak current; The low-pass filtering link that resistance R 41 and capacitor C 19 constitute is level and smooth direct current signal with the shift pulse signal of sample resistance R35, described direct current signal is directly proportional with the average current input of described Buck circuit, with the feedback signal of described direct current signal as the average current input outer shroud.
4. general constant-power electronic ballast for high-intensity gas discharge lamp according to claim 1, it is characterized in that described resonance full bridge inverter is to constitute full bridge inverter by metal-oxide-semiconductor Q5, Q6, Q7 and Q8, constitute the resonance start-up circuit by resonant inductance L4 and resonance capacitor C 28, C29, described full bridge inverter changes the direct current of described Buck circuit output into ac square-wave voltage, the excitation that provides to HID.
CN201010118265A 2010-03-04 2010-03-04 General constant-power electronic ballast for high-intensity gas discharge lamp Pending CN101772248A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102469671A (en) * 2010-11-12 2012-05-23 苏州朗米尔照明科技有限公司 Novel circuit of electronic ballast of ceramic metal halide lamp with high power
CN103108475A (en) * 2012-08-17 2013-05-15 孝感锐泰照明电器有限公司 High strength electric-discharge lamp electronic ballast and starting method thereof
CN103378727A (en) * 2012-04-24 2013-10-30 比亚迪股份有限公司 DC/DC for dual-direction constant current and method for controlling dual-direction constant current
CN103563489A (en) * 2011-06-07 2014-02-05 奥斯兰姆施尔凡尼亚公司 Dimming ballast for electrodeless lamp
CN103906329A (en) * 2012-12-27 2014-07-02 欧普照明股份有限公司 Ballast circuit
CN105813361A (en) * 2016-05-10 2016-07-27 国网安徽省电力公司检修公司 High-power HID (high intensity discharge) starting method, starting circuit and electronic ballast
CN110972374A (en) * 2019-11-04 2020-04-07 嘉兴光驰科技有限公司 Electronic ballast and control method thereof
CN114448276A (en) * 2022-04-08 2022-05-06 茂睿芯(深圳)科技有限公司 AC-DC conversion circuit and method based on resonant full bridge

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Publication number Priority date Publication date Assignee Title
CN2768373Y (en) * 2004-12-14 2006-03-29 余丽丽 Electronic ballast for high-power and high-intensity gas discharge lamp (HID)
CN2862589Y (en) * 2005-07-26 2007-01-24 广东雪莱特光电科技股份有限公司 Electronic ballast for metal-halogen lamp
CN201114944Y (en) * 2007-07-31 2008-09-10 金成日 Electronic ballast for high-voltage sodium lamp
CN201134967Y (en) * 2007-11-16 2008-10-15 林文献 General type electronic ballast
WO2009145184A1 (en) * 2008-05-27 2009-12-03 パナソニック電工株式会社 Discharge lamp lighting apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2768373Y (en) * 2004-12-14 2006-03-29 余丽丽 Electronic ballast for high-power and high-intensity gas discharge lamp (HID)
CN2862589Y (en) * 2005-07-26 2007-01-24 广东雪莱特光电科技股份有限公司 Electronic ballast for metal-halogen lamp
CN201114944Y (en) * 2007-07-31 2008-09-10 金成日 Electronic ballast for high-voltage sodium lamp
CN201134967Y (en) * 2007-11-16 2008-10-15 林文献 General type electronic ballast
WO2009145184A1 (en) * 2008-05-27 2009-12-03 パナソニック電工株式会社 Discharge lamp lighting apparatus

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102469671A (en) * 2010-11-12 2012-05-23 苏州朗米尔照明科技有限公司 Novel circuit of electronic ballast of ceramic metal halide lamp with high power
CN103563489A (en) * 2011-06-07 2014-02-05 奥斯兰姆施尔凡尼亚公司 Dimming ballast for electrodeless lamp
CN103378727A (en) * 2012-04-24 2013-10-30 比亚迪股份有限公司 DC/DC for dual-direction constant current and method for controlling dual-direction constant current
CN103378727B (en) * 2012-04-24 2016-04-27 比亚迪股份有限公司 A kind of DC/DC for bidirectional constant and control method thereof
CN103108475A (en) * 2012-08-17 2013-05-15 孝感锐泰照明电器有限公司 High strength electric-discharge lamp electronic ballast and starting method thereof
CN103906329A (en) * 2012-12-27 2014-07-02 欧普照明股份有限公司 Ballast circuit
CN103906329B (en) * 2012-12-27 2016-09-07 欧普照明股份有限公司 A kind of ballasting circuit
CN105813361A (en) * 2016-05-10 2016-07-27 国网安徽省电力公司检修公司 High-power HID (high intensity discharge) starting method, starting circuit and electronic ballast
CN110972374A (en) * 2019-11-04 2020-04-07 嘉兴光驰科技有限公司 Electronic ballast and control method thereof
CN114448276A (en) * 2022-04-08 2022-05-06 茂睿芯(深圳)科技有限公司 AC-DC conversion circuit and method based on resonant full bridge
CN114448276B (en) * 2022-04-08 2022-06-28 茂睿芯(深圳)科技有限公司 AC-DC conversion circuit and method based on resonant full bridge

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Application publication date: 20100707