CN205491400U - Sub - ballast of single -phase single -stage HID high frequency electric - Google Patents

Sub - ballast of single -phase single -stage HID high frequency electric Download PDF

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CN205491400U
CN205491400U CN201620025283.XU CN201620025283U CN205491400U CN 205491400 U CN205491400 U CN 205491400U CN 201620025283 U CN201620025283 U CN 201620025283U CN 205491400 U CN205491400 U CN 205491400U
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circuit
power
input
frequency
ballast
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张国安
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WUHAN XINSHUANGYI SCIENCE & TECHNOLOGY DEVELOPMENT Co Ltd
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WUHAN XINSHUANGYI SCIENCE & TECHNOLOGY DEVELOPMENT Co Ltd
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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

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Abstract

The utility model discloses a sub - ballast of single -phase single -stage HID high frequency electric, including power main circuit and control circuit, the power main circuit is a two -way BUCK circuit topology, constitutes by LC filter circuit, two direction switch circuit and LCC resonance circuit, LC filter circuit sets up at the input, is connected with the input power, LCC resonance circuit sets up at the output, connects outside HID lamps and lanterns. Control circuit includes that auxiliary electrical power source, synchronous circuit, sampling circuit, modulate circuit, singlechip, PFM produce circuit, logic circuit and drive circuit. The utility model discloses simple structure, the device is few and little, and the superior performance only alternaties into the high -frequency alternating current that the HID illumination was suitable for with the direct power frequency commercial power the input power of one -level power conversion circuit.

Description

A kind of single-phase single-grade HID high-frequency electronic ballast
[technical field]
This utility model relates to the lighting fields such as HID lamp, particularly to a kind of single-phase single-grade HID high-frequency electronic ballast based on two-way BUCK PFC and LCC high-frequency resonant soft switch technique.
[background technology]
HID lamp obtains wide popularization and application due to advantages such as color rendering properties are good, brightness is high, good energy-conserving effect, light transmission are good at lighting field, but for guaranteeing HID lamp reliably working, needs special electronic ballast.But, up to this point, on market, the electric ballast of technology maturation is mainly two-layer configuration and tertiary structure circuit form, first the alternating current of input is become unidirectional current, then becomes alternating current to export DC power conversion.Front stage circuits is circuit of power factor correction, and the alternating current of input is become unidirectional current, and major function is to realize input power side High Power Factor.Late-class circuit is inverter circuit, becomes low frequency or high-frequency alternating current, output to meet the alternating current power supply required for HID lamp illumination DC inverter.Tertiary structure circuit form, is to add one-level DC voltage conversion circuit again between above-mentioned front stage circuit, it is achieved the coupling between input and output voltage.Due to multi-level pmultistage circuit version, cause the circuit structure complexity of electric ballast, cost high, inefficient, and in order to realize input power side High Power Factor, the circuit of power factor correction of increase also can bring the electromagnetic compatibility problem such as FCC.
Lu Qiusheng etc. describe several single-stage electric ballast at document " development of high-frequency ac electronics ballast technology and application ", Xu Ye respectively at document " research of novel HID lamp electric ballast ", be respectively arranged with pluses and minuses and purposes, but performance is the most perfect.Xu Ye also proposed a kind of sigle-stage AC electric ballast based on AC wave chopping technology at document " research of novel HID lamp electric ballast ".The power switch pipe of this ballast is operated in hard switching, switching loss is big, and power factor is low, and harmonic wave is big, output is low frequency interrupted square-wave or high frequency intermittent sine wave, when there is input power current over-zero, HID lamp is lighted a fire again, also brings along electromagnetic compatibility problem, and it is to filtering output after input ac power copped wave again, output voltage virtual value is low, can be only used for the HPS of small-power low-voltage, it is impossible to be applied to the HPS of high-power high-voltage, and also igniter need to be increased.
[utility model content]
In view of this, for overcoming the deficiencies in the prior art, this utility model provides a kind of single-phase single-grade HID high-frequency electronic ballast based on two-way BUCK PFC and LCC high-frequency resonant soft switch technique, simple in construction, superior performance, can directly carry out AC/AC (alternating current) variable-frequency, only just directly the industrial-frequency alternating current of input can be transformed into high-frequency alternating current with one-level power conversion circuit, there is provided, for HID lamp illumination, the high-frequency ac power being suitable for, meet HID lamp self-starting, input power side High Power Factor, complete machine high efficiency simultaneously and meet the requirement of the electromagnetic compatibilities such as FCC.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of single-phase single-grade HID high-frequency electronic ballast, including power main circuit and control circuit, described power main circuit is a two-way BUCK circuit topology, being made up of with LCC resonance circuit LC filter circuit, bidirectional switch circuit, described LC filter circuit is arranged on input, is connected with input power, the input of described bidirectional switch circuit connects described LC filter circuit, its outfan connects described LCC resonance circuit, and described LCC resonance circuit is arranged on outfan, the HID lamp tool outside connection.
Described power main circuit completes that electric energy is become HID lamp etc. from the power frequency civil power of input power and illuminates the high-frequency alternating current being suitable for.
Described bidirectional switch circuit is made up of four high frequency power switching tubes, use frequency modulation control method and suitably control logic, control described four high frequency power switching tubes to be switched on or off in good time, to input power copped wave, powering to outfan LCC resonance circuit, described power main circuit works in load in series quasi-resonance mode, power switch pipe is made to achieve Sofe Switch, reduce the electromagnetic interference that power switch pipe brings in switching process, reduce contactor loss, improve overall efficiency.
Described output LCC resonance circuit works in quasi-resonance mode, and output waveform is close to sinusoidal wave, and frequency is single, it is easy to meet EMC Requirements.
The current impulse of late-class circuit is filtered by the LC filter circuit of described input, and the electric current in filter inductance is continuous, and follows input voltage change, it is achieved input power side power factor is close to 1.
Described control circuit includes that accessory power supply, synchronous circuit, sample circuit, modulate circuit, single-chip microcomputer, PFM produce circuit, logic circuit and drive circuit.
The input of described sample circuit connects the outfan of above-mentioned LCC resonance circuit, the outfan of described sample circuit connects modulate circuit, described modulate circuit reconnects single-chip microcomputer, the outfan of described single-chip microcomputer connects PFM and produces the input of circuit, PFM produces the outfan of circuit and connects logic circuit, logic circuit reconnects drive circuit, and drive circuit is connected with above-mentioned bidirectional switch circuit again.The input of described synchronous circuit connects above-mentioned LC filter circuit, and its outfan connects described logic circuit respectively, PFM produces circuit and single-chip microcomputer.
The power taking on the filter capacitor of input LC filter circuit outfan of described accessory power supply, output voltage, for other each several parts of control circuit, reduces the accessory power supply impact on input power further.
Described synchronous circuit completes half cycle positive to input power and the differentiation of negative half period, provides synchronizing signal.Described synchronous circuit output signal delivers to logic circuit respectively, PFM produces circuit and single-chip microcomputer.
The input of described sample circuit connects described LCC resonance circuit, and its outfan connects described modulate circuit.Lamp current precision resistance samples, and modulating voltage resitstance voltage divider samples.
The management of described single-chip microcomputer completion system and control function, regulate feedback signal sampling, the numeral PI of lamp current, modulating voltage, compare, and output PFM controls voltage and lamp status signal.
Described PFM produces circuit and receives the PFM control voltage from single-chip microcomputer, controlled generation, output PFM signal.
Described logic circuit accepts synchronizing signal, PFM signal, lamp status signal etc., exports four tunnel drive control signal.Logic circuit can be made up of combinational logic circuit, or logic circuit is constituted on a small scale.
The four tunnel drive control signal that described drive circuit exports logic circuit carry out isolating, power amplification, go to control four high frequency power switching tubes and are switched on or off in good time.
Workflow of the present utility model includes four working stages: the preparatory stage, startup stage, warm-up phase and illumination phase.
Preparatory stage is that ballast powers on accessory power supply output voltage stabilization, exports " being ready to " signal, coordinates each several part circuit and starts working.
Startup stage to be that LCC resonance circuit is controlled be operated in frequency reducing frequency sweep mode, operating frequency is from high frequency downwards progressively close to resonant frequency, and modulating voltage is stepped up, until it is sufficiently high to reach modulating voltage during quasi-resonance state, it is sufficient to make to puncture between lamp two electrode.
Subsequently entering warm-up phase, use constant current controlling mode, light temperature and brightness gradually rise, and modulating voltage gradually rises, and lamp power gradually rises, until lamp power is equal to rated power, enter illumination phase.
In illumination phase, using invariable power or current constant control mode, modulating voltage is equal to rated voltage, and lamp power is equal to rated power, and lamp current has reduced than warm-up phase.
In technical solution adopted in the utility model, ballast power on after preparatory stage before this, four power switch pipes first work all in cut-off state, accessory power supply, until output " being ready to " signal during accessory power supply output voltage stabilization, control circuit and on-off circuit are just started working.
During HID starts, ballast frequency reducing frequency sweep, operating frequency is from height progressively close to LCC high-frequency resonant frequency, and HID both end voltage is stepped up, until HID two electrode punctures.Pressure for reduce on resonant inductance as far as possible, series capacitance to be much smaller than with HID shunt capacitance.
HID enters warm-up phase after starting, ballast first works equal to the current constant control mode frequency modulation of rated current with operating current, now modulating voltage is stepped up, lamp power steps up, during until lamp power reaches power-handling capability, ballast starts to illuminate with power limitation control mode or quasi-flow control mode frequency modulation, and now lamp power is equal to rated power, modulating voltage is equal to load voltage value, and lamp current is slightly less than rated current.
When the HID life-span ends, modulating voltage can be significantly hotter than load voltage value, and lamp brightness can substantially reduce, and for ensureing that lamp brightness of illumination is constant, can suitably increase ballast output power, prolong long lamp life.When modulating voltage is higher than maximum (more than load voltage value), lamp electrode erosion is serious, is further added by output and ballast reliability can be made to reduce, and ballast quits work.
In technical solution adopted in the utility model, there is no the circuit of power factor correction that conventional electronic ballast uses, reduce commutator complexity, improve reliability, reduce electromagnetic compatibility difficulty, it is easy to meet EMC Requirements.
In technical solution adopted in the utility model, power main circuit does not has DC link, there is no electrochemical capacitor, the service life of ballast can be improved.
As improvement of the present utility model, input at ballast increases a single-phase rectification bridge, the power frequency civil power of input is carried out rectification, four switching tubes in former on-off circuit can be reduced to two switching tubes, on the premise of not reducing ballast performance, the complexity of control circuit can be reduced, particularly reduce the complexity of drive circuit.
The beneficial effects of the utility model are, simple in construction, superior performance, can directly carry out AC/AC (alternating current) variable-frequency conversion, only just directly the industrial-frequency alternating current of input can be transformed into high-frequency alternating current with one-level power conversion circuit, there is provided, for HID lamp illumination, the high-frequency ac power being suitable for, meet HID lamp self-starting, input power side High Power Factor, complete machine high efficiency simultaneously and meet the requirement of the electromagnetic compatibilities such as FCC.
[accompanying drawing explanation]
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is that this utility model high-frequency electronic ballast structure forms schematic diagram.
Fig. 2 is the circuit topology figure of the power main circuit of this utility model high-frequency electronic ballast.
Fig. 3 is the circuit diagram of the sample circuit of this utility model high-frequency electronic ballast.
Fig. 4 is the workflow block diagram of this utility model high-frequency electronic ballast.
Fig. 5 is this utility model high-frequency electronic ballast work schedule waveform diagram.
[detailed description of the invention]
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
With reference to Fig. 1, Fig. 2 and Fig. 3, single-phase single-grade HID high-frequency electronic ballast based on two-way BUCK PFC and LCC high-frequency resonant soft switch technique, including power main circuit 1 and control circuit 2, described power main circuit 1 is a two-way BUCK circuit topology, by LC filter circuit 11, bidirectional switch circuit 12 forms with LCC resonance circuit 13, LC filter circuit 11 is arranged on input, it is connected with input power, bidirectional switch circuit 12 is by four high frequency power switching tube S1, S2, S3, S4 is constituted, described LCC resonance circuit 13 is arranged on outfan, HID lamp tool outside Lian Jieing.
Control circuit 2 includes accessory power supply 21, synchronous circuit 22, lamp current and voltage sample circuit 25, modulate circuit 26, single-chip microcomputer 27, PFM produces circuit 24, logic circuit 28 and drive circuit 23, the input of lamp current and voltage sample circuit 25 connects the outfan of above-mentioned LCC resonance circuit 13, the outfan of lamp current and voltage sample circuit 25 connects modulate circuit 26, described modulate circuit 26 reconnects single-chip microcomputer 27, the outfan of single-chip microcomputer 27 connects PFM and produces the input of circuit 24, PFM produces the outfan of circuit 24 and connects logic circuit 28, logic circuit 28 reconnects drive circuit 23, drive circuit 23 is connected with above-mentioned bidirectional switch circuit 12 again.The input of synchronous circuit 22 connects above-mentioned LC filter circuit 11 and samples, and its outfan connects logic circuit 28, PFM produces circuit and single-chip microcomputer 27.Accessory power supply 21 is from LC filter circuit 11 outfan power taking.
Above-mentioned power main circuit 1 completes the electric energy conversion from the power frequency civil power of input power to the illuminating high-frequency alternating currents such as HID lamp.Use frequency modulation control method and suitably control logic, controlling described four high frequency powers switching tube S1, S2, S3, S4 and turn on and off in good time, to input ac power copped wave, power to outfan LCC resonance circuit 13.Described LCC resonance circuit 13 is operated in quasi-resonance state so that output AC electricity approximate sine wave, and frequency content is single, make four power switch pipes achieve Sofe Switch simultaneously, reduce electromagnetic interference, it is easy to meet EMC Requirements, reduce switching loss, improve overall efficiency.
The current impulse of late-class circuit is filtered by described LC filter circuit 11, and the electric current in filter inductance is continuous, and follows input voltage change, it is achieved input power side power factor is close to 1.
Accessory power supply 21 in above-mentioned control circuit 2 is powered for other each several parts of control circuit 2 at input LC filter circuit 11 outfan (on filter capacitor C) power taking, output voltage.So power taking, can reduce the accessory power supply impact on input power after LC filters.But accessory power supply 21 is unstable at the period output voltage that powers on, and needs to hang on, could output voltage stabilization.Arrange " being ready to " signal for wait for this, when accessory power supply 21 output voltage stabilization, output " being ready to " signal goes to coordinate other each several parts of control circuit and normally works.
Synchronous circuit 22 completes half cycle positive to input power and the differentiation of negative half period, provides synchronizing signal.Synchronous circuit 22 is also to sample on the filter capacitor C of input LC filter circuit 11.So sample input supply voltage, the phase lag problem that LC filter circuit 11 brings can be avoided.Sample with resitstance voltage divider, the output reflection positive half cycle of input power and the synchronizing signal of negative half period after zero-crossing comparator.
The input of lamp current and voltage sample circuit 25 connects the outfan of described LCC resonance circuit 13, and its outfan connects described modulate circuit 26.Lamp current resistance sampling, modulating voltage resitstance voltage divider samples.As it is shown on figure 3, the current sampling resistor of lamp current and voltage sample circuit 25 is the accurate sample resistance of Low Drift Temperature, sensed lamp current I.Voltage sample circuit is the resitstance voltage divider that many resistance is constituted, and has two-way, modulating voltage VA when a road is used for detecting illumination, modulating voltage VB when a road is used for detecting startup.
Sampling current I is filtered by modulate circuit 26, precision rectifying, amplification, sampling voltage is carried out dividing potential drop, rectification, filtering, obtains fed-back current signals I0 and voltage signal LV, HV.
The management of single-chip microcomputer 27 completion system and control function, regulate feedback signal sampling, the numeral PI of lamp current, modulating voltage, compare, and output PFM controls voltage and lamp status signal.Use single-chip microcomputer 27 to make ballast is more intelligent, hommization, simplification etc..Single-chip microcomputer 27 works by synchronizing signal and gets out signal control, respectively modulating voltage sampled signal HV (modulating voltage during corresponding startup), LV (modulating voltage during corresponding illumination), lamp current sampled signal I0 are sampled, differentiating, process, output signal controls PFM and produces circuit frequency reducing frequency sweep, frequency modulation etc..
PFM produces circuit 24 and receives the PFM control voltage from single-chip microcomputer 27, controlled generation, output PFM signal.Use PFM to produce circuit and can reduce the workload of single-chip microcomputer.PFM produces circuit can use the common pwm chips such as UC3525, make full use of its VCO and the part such as logic, output, adjust RT (oscillation resistance) end equivalent resistance, just can change output pulse frequency, control SD (turn off and control) end level, it is possible to control the output of PFM signal.
Logic circuit 28 accepts synchronizing signal, PFM signal, lamp status signal etc., exports four tunnel drive control signal.Logic circuit 28 can be made up of combinational logic circuit, or logic circuit is constituted on a small scale.The four tunnel drive control signal that 23 logic circuits 28 of drive circuit export carry out isolating, power amplification, go to control four high frequency power switching tubes and are switched on or off in good time.
Drive circuit 23 uses RF isolated drive circuit completion logic circuit to export four roads and drives the matching features such as the isolation between signal and corresponding four high frequency power switching tube gate electrode drive signals, power amplification, dead band.
As shown in Figure 4, ballast workflow of the present utility model includes preparing, starts, preheats and illuminate four-stage.
Ballast power on after preparatory stage before this, accessory power supply 21 works on power, until after accessory power supply 21 output voltage stabilization, exporting " being ready to " signal, goes to coordinate control circuit 2 each several part reliably working.In the preparatory stage, control circuit 2 is operated in original state, and four power switch pipes all end.
Startup stage, single-chip microcomputer 27 detects synchronizing signal, output signal controls PFM and produces circuit 24 output frequency frequency reducing frequency sweep, along with operating frequency, progressively close to LCC resonance circuit 13 high-frequency resonant point, (HID opens a way, Q-value is relatively big, series inductance and with lamp shunt capacitance resonant frequency) and input supply voltage progressively near peaking, the resonance potential at lamp two ends is more and more higher, until lamp two electrode punctures and successfully starts up, now can detect that lamp current is more than starting current.Can be designed by suitable parameter so that the resonance potential of lamp is sufficiently high, it is possible to achieve lamp thermal starting.
The most not successfully starting up if the resonance potential at lamp two ends reaches predetermined maximum, single-chip microcomputer counting reaches three times, and lamp failure is described, it is impossible to starting, single-chip microcomputer sends warning signal, and ballast quits work.
Lamp enters warm-up phase after starting.Ballast works with current constant control mode frequency modulation, controls lamp current equal to rated current.Light temperature is more and more higher, and modulating voltage is more and more higher, and lamp power is the most increasing, until lamp power reaches rated power, enters illumination phase.
In illumination phase, ballast works with invariable power or current constant control mode frequency modulation, LCC resonance circuit 13 is operated in series connection quasi-resonance state (HID equivalent resistance R, Q-value diminishes, ignore with lamp shunt capacitance, resonant inductance and series capacitance quasi-resonance), lamp power is equal to rated power, modulating voltage is equal to rated voltage, and lamp current is less than rated current.
Now, LCC resonance circuit 13 works in quasi-load in series resonant condition, on the one hand ballast current output waveform is approximate sine wave, frequency content is single, harmonic components greatly reduces, it is easy to meet ballast output end EMC Requirements, on the other hand makes power switch pipe achieve Sofe Switch, significantly reduce switching loss, improve ballast overall efficiency.
Although ballast output high-frequency alternating current current amplitude is modulated by power frequency, instantaneous power is change, but mean power is constant, is not enough to affect illuminated visual effect, at input power zero crossing also without restarting.
In technical solution adopted in the utility model, work schedule is as it is shown in figure 5, at the positive half cycle of input power, HF switch pipe S2, S4 are operated in conducting state, S1, S3 are operated in PFM on off state, and S1, S3 work (on or off) state is complementary.At the negative half period of input power, HF switch pipe S1, S3 are operated in conducting state, and S2, S4 are operated in PFM on off state, and S2, S4 work (on or off) state is complementary.
In technical solution adopted in the utility model, directly single-phase alternating current is transformed into high-frequency alternating current with one-level power circuit, it is achieved that the direct AC/AC (alternating current) variable-frequency of single-phase single-grade, simple in construction, device is few, and circuit is operated in high frequency, significantly reduces the volume of electric ballast, weight and cost.
In technical solution adopted in the utility model, in power main circuit 1, there is no DC link, there is no electrochemical capacitor, therefore, it can greatly extend the life-span of ballast.
In technical solution adopted in the utility model, when lamp is ended specified service life, can suitably increase ballast output power, keep lamp brightness of illumination constant, extend lamp service life.
In technical solution adopted in the utility model, during illumination, LCC resonance circuit 13 is operated in quasi-resonance state, and HF switch pipe achieves Sofe Switch, significantly reduces switching loss and electromagnetic radiation, substantially increases the overall efficiency of ballast.
In technical solution adopted in the utility model, take mode of frequency regulation and suitable control methods, on-off circuit filters through LC after input ac power carries out high frequency chopping again, electric current in the filter inductance of input power side is continuous, and follow input voltage change, power factor is close to 1, it is achieved that ballast input power side High Power Factor, and harmonic pollution to electrical network has greatly been reduced or eliminated.
Advantage of the present utility model is embodied in: (1) achieves single-phase single-grade high-frequency electronic ballast, simple in construction, and device is few and little, greatly reduces the volume of electric ballast, weight and cost, improves reliability.(2) power main circuit does not has DC link, there is no electrochemical capacitor, the service life of ballast can be improved.(3) when lamp is ended specified service life, can suitably increase ballast output power, keep lamp brightness of illumination constant, extend the service lifes such as HID lamp.(4) HF switch pipe achieves Sofe Switch, significantly reduces switching loss and electromagnetic radiation, substantially increases the overall efficiency of ballast, and the EMC Requirements that is content with very little.(5) be equivalent to have employed two-way BUCK power factor correction technology, electric current in the filter inductance of input power side is continuous, and follows input voltage change, and power factor is close to 1, achieve ballast input power side High Power Factor, harmonic pollution to electrical network has greatly been reduced or eliminated.(6) circuit of power factor correction not having conventional electronic ballast to use, reduces ballast complexity, improves reliability, reduce electromagnetic compatibility difficulty, it is easy to meet EMC Requirements.(7) using frequency sweep quasi-resonance to start, resonance potential is high, need not additional igniter, and can be with thermal starting.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.

Claims (3)

1. a single-phase single-grade HID high-frequency electronic ballast, it is characterized in that, including power main circuit and control circuit, described power main circuit is a two-way BUCK circuit topology, it is made up of with LCC resonance circuit LC filter circuit, bidirectional switch circuit, described LC filter circuit is arranged on input, it is connected with input power, the input of described bidirectional switch circuit connects described LC filter circuit, its outfan connects described LCC resonance circuit, described LCC resonance circuit is arranged on outfan, the HID lamp tool outside connection;
Described control circuit includes accessory power supply, synchronous circuit, sample circuit, modulate circuit, single-chip microcomputer, PFM produces circuit, logic circuit and drive circuit, the input of described sample circuit connects the outfan of above-mentioned LCC resonance circuit, the outfan of described sample circuit connects modulate circuit, described modulate circuit reconnects single-chip microcomputer, the outfan of described single-chip microcomputer connects PFM and produces the input of circuit, described PFM produces the outfan of circuit and connects logic circuit, described logic circuit reconnects drive circuit, drive circuit is connected with above-mentioned bidirectional switch circuit again, the input of described synchronous circuit connects above-mentioned LC filter circuit, its outfan connects described logic circuit respectively, PFM produces circuit and single-chip microcomputer.
A kind of single-phase single-grade HID high-frequency electronic ballast the most according to claim 1, it is characterised in that described bidirectional switch circuit is made up of four high frequency power switching tubes.
A kind of single-phase single-grade HID high-frequency electronic ballast the most according to claim 1, the input at ballast increases a single-phase rectification bridge.
CN201620025283.XU 2016-01-12 2016-01-12 Sub - ballast of single -phase single -stage HID high frequency electric Active CN205491400U (en)

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* Cited by examiner, † Cited by third party
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CN106507571A (en) * 2016-09-22 2017-03-15 武汉鑫双易科技开发有限公司 New orthogonal booster type single-stage high-frequency inductor electric ballast and its method of work
CN106535447A (en) * 2016-09-22 2017-03-22 武汉鑫双易科技开发有限公司 Novel AC-AC variable frequency single-stage high frequency inductor electronic ballast and operating method of the same
CN106535445A (en) * 2016-09-29 2017-03-22 武汉鑫双易科技开发有限公司 Novel AC-AC variable frequency single-stage high-frequency electronic ballast and operating method thereof
CN106535448A (en) * 2016-09-22 2017-03-22 武汉鑫双易科技开发有限公司 Novel high-efficiency high-frequency inductive electronic ballast and working method thereof
CN110139453A (en) * 2019-05-05 2019-08-16 莫夫 A kind of lighting apparatus for discharge lamp and its ignition method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106507571A (en) * 2016-09-22 2017-03-15 武汉鑫双易科技开发有限公司 New orthogonal booster type single-stage high-frequency inductor electric ballast and its method of work
CN106535447A (en) * 2016-09-22 2017-03-22 武汉鑫双易科技开发有限公司 Novel AC-AC variable frequency single-stage high frequency inductor electronic ballast and operating method of the same
CN106535448A (en) * 2016-09-22 2017-03-22 武汉鑫双易科技开发有限公司 Novel high-efficiency high-frequency inductive electronic ballast and working method thereof
CN106535447B (en) * 2016-09-22 2019-07-12 武汉鑫双易科技开发有限公司 The single-stage high-frequency inductor electric ballast and its working method of novel AC/AC (alternating current) variable-frequency
CN106535448B (en) * 2016-09-22 2019-08-09 武汉鑫双易科技开发有限公司 The high-frequency inductor electric ballast and its working method of novel efficient
CN106535445A (en) * 2016-09-29 2017-03-22 武汉鑫双易科技开发有限公司 Novel AC-AC variable frequency single-stage high-frequency electronic ballast and operating method thereof
CN106535445B (en) * 2016-09-29 2019-07-12 武汉鑫双易科技开发有限公司 The single-stage high-frequency electronic ballast and its working method of novel AC/AC (alternating current) variable-frequency
CN110139453A (en) * 2019-05-05 2019-08-16 莫夫 A kind of lighting apparatus for discharge lamp and its ignition method
CN110139453B (en) * 2019-05-05 2021-06-22 广东科技学院 Discharge lamp lighting device and lighting method thereof

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