CN104540310B - The export resonance converter and its control method of a kind of plant light compensation ballast for lamp - Google Patents
The export resonance converter and its control method of a kind of plant light compensation ballast for lamp Download PDFInfo
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- CN104540310B CN104540310B CN201510019155.4A CN201510019155A CN104540310B CN 104540310 B CN104540310 B CN 104540310B CN 201510019155 A CN201510019155 A CN 201510019155A CN 104540310 B CN104540310 B CN 104540310B
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Abstract
The export resonance converter and its control method of a kind of plant light compensation ballast for lamp, belong to lighting control technique field, it is improved by conventional half-bridge controlled resonant converter, gain-adjusted coil, magnetizing inductance and output matching coil are increased on the basis of original, so that constituting resonator, filter network with resonance transformer, the adjustable range of voltage is increased, while the clutter in resonant network can be filtered, conduction and the radiation interference of switch is reduced.
Description
Technical field
The present invention relates to the export resonance converter and its control method of a kind of plant light compensation ballast for lamp, belong to illumination
Control technology field.
Background technology
Under agricultural modernization background, its special light filling equipment answers greenhouse plants to produce light filling using being widelyd popularize
Need, some Lighting Incs release powerful plant illumination special lamp in the world, its bulb electrical equipment feature is that pipe pressure scope is
175-330V, operating frequency range 100-200KHZ's, adjustable, the mark of electromagnetic compatibility in the range of dimming scope requirement 50-110%
Alignment request reaches the standard of civilian FCC, and efficiency can carry out power output regulation etc., this design to ballast up to 96%
At a relatively high requirement is proposed, electromagnetic compatibility problem is design electric ballast when bulb is driven using high pressure, high frequency voltage
Problem, in addition in power inverter, increase power density, the requirement more and more higher of design size is reduced, in the urgent need to setting
Meter Shi Tigao switching frequencies, reduce switching loss, realize soft switch conversion so that Switching Power Supply has efficiency higher.
The content of the invention
It is the defect for having technology on overcoming, the purpose of the present invention is directed to a kind of output control side of agriculture special bulb
Method, is a kind of special resonant network, to solve output matching bulb, possesses good unit for electrical property parameters and electromagnetic compatibility spy
Property.
To achieve the above object, the present invention is using following technical scheme：
The export resonance converter and its control method of a kind of plant light compensation ballast for lamp, including resonant capacitance, resonance
Transformer, starting ignition electric capacity and load, are additionally provided with gain-adjusted coil, excitatory between starting ignition electric capacity and load
Inductance and output matching coil, wherein, two ends and the two ends of starting ignition electric capacity of magnetizing inductance are connected in parallel, and magnetizing inductance
One end also with gain-adjusted coil of wherein one end be connected；Output matching coil has four terminals, wherein the two of homonymy
Terminal is connected with load two ends, and two terminals of opposite side are another with the other end of gain-adjusted coil and magnetizing inductance respectively
End connection.
Become using the control method of the light compensating lamp of claim 1, including MCU, drive component, isolation control switch, resonance
Parallel operation, voltage detection circuit and current detection circuit, MCU connect drive component, voltage detection circuit and current detecting and return respectively
Road, and isolation control switch is controlled by drive module, and controlled resonant converter, voltage detecting are controlled by isolation control switch
Loop and current detection circuit are respectively intended to detect the voltage and current change at starting ignition electric capacity two ends in controlled resonant converter, and
Sampled data is transferred to MCU, and regulation is controlled by MCU.
Because above-mentioned technical proposal is used, the present invention has following advantages：
The present invention produces a square wave by MCU programmings, and is become square-wave voltage, is exported by square-wave generator, passes through
After resonance and filter network, its emc issue is solved；The turn ratio of gain-adjusted coil and magnetizing inductance can carry out electricity
The setting of gain is pressed, output voltage adjustment interior in a big way is met, its working frequency stabilization, efficiency high dims output frequency
Change is small.
Brief description of the drawings
Fig. 1 is the circuit diagram of half bridge resonant transformer in the prior art；
Fig. 2 is implemented for the present invention:The circuit diagram of 1 controlled resonant converter for being provided；
The light compensating lamp control principle schematic diagram that Fig. 3 is provided by the embodiment of the present invention 2.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment the invention will be further described：
Embodiment 1：Referring to shown in Fig. 1, Fig. 2：
The matching of picture and text：Resonant capacitance Cr, resonance transformer Lr, starting ignition electric capacity Ci, magnetizing inductance Lm, gain-adjusted
Coil Ls, output matching coil LF, load RO.
It is traditionally used for the controlled resonant converter of light compensating lamp, including resonant capacitance, resonance transformer, starting ignition electric capacity and negative
Carry, it can be seen in FIG. 1 that resonant capacitance, resonance transformer, starting ignition electric capacity are connected in series in, and load is parallel to startup
Ignition capacitor two ends.So in the case where high frequency, high tension voltage drive, its emc issue is serious.Therefore, to traditional resonance
Converter is improved, as shown in Fig. 2 being additionally provided with gain-adjusted coil between starting ignition electric capacity and load, swashing
Magnetoelectricity sense and output matching coil, wherein, two ends and the two ends of starting ignition electric capacity of magnetizing inductance are connected in parallel, and excitatory electricity
The one end of wherein one end of sense also with gain-adjusted coil is connected；Output matching coil has four terminals, wherein the two of homonymy
Individual terminal is connected with load two ends, and two terminals of opposite side are another with the other end of gain-adjusted coil and magnetizing inductance respectively
One end connects.The setting of voltage gain can be carried out by the turn ratio of adjust gain regulating winding and magnetizing inductance, output is met
Voltage is in interior adjustment in a big way, and its resonance current is sine wave, is output as sine voltage.And square-wave voltage is applied to net
Network, substantially only sinusoidal current allows to flow through resonant network, and current hysteresis are after the voltage for putting on resonant network, it is ensured that switch
The unlatching of pipe is no-voltage, realizes soft commutation, therefore reduces noise and radiation, and the resonant network can filter out clutter, subtract
The conduction of few switch and radiation interference.
Embodiment 2：
The matching of picture and text：Drive module DR, isolation control switch Q1 and Q2, resonant capacitance CR, resonance transformer LR, startup
Ignition capacitor CI, gain-adjusted coil LS, magnetizing inductance LM, output matching coil LF, load LAMP, voltage sampling electric capacity CV,
Current sampling inductance LC.
As shown in figure 3, using controlled resonant converter control principle drawing in embodiment 1, including MCU, drive component, isolation control
Switch, controlled resonant converter, voltage detection circuit and current detection circuit, its operation principle is：MCU connect respectively drive component,
Voltage detection circuit and current detection circuit, and isolation control switch is controlled by drive module, and by isolation control switch
To control controlled resonant converter, voltage detection circuit and current detection circuit to be respectively intended to starting ignition electricity in detection controlled resonant converter
Hold the voltage and current change at two ends, and sampled data is transferred to MCU, and regulation is controlled by MCU.
It is specific as follows：
Controller contains a control MCU for resonance, drive component, and its major function is setting maximum resonance frequency,
The detecting computing function of lowest resonant frequency, working frequency and voltage x current, output is exported comprising the complementary duty of 2 50%, can
The Dead Time of programming, to ensure that Sofe Switch is operated, highest supports 200KHZ driving frequencies, soft start function, idle function, electricity
The resonance control module of the functions such as stream detection, output voltage detection, fault locking.
The aspect of resonance control module is the alternating drive signal that MCU inside square-wave generator produces 50%, by two
Individual connected isolation control switch Q1, Q2 produces square-wave voltage Vd, and square-wave generator is a half-bridge, on isolation control switch Q1
End connection DC voltage, the resonant capacitance in half-bridge mid point M connection controlled resonant converters, the load in controlled resonant converter is bulb.
Voltage detection circuit includes voltage sampling electric capacity, and one end of the voltage sampling electric capacity connects resonance transformer and opens
The intersection of dynamic Ignition capacitor, other end connection MCU, its function is that collection igniting and operating voltage VS input to MCU.
Current detection circuit includes current sampling inductance, and its function is that collection preheating and operating current CS input to MCU, humorous
The converter that shakes is frequency modulation type PFM, and its work original state is constant current, and sampled inductance inputs to MCU measuring loops after start completion
Electric current carry out sampling calculating, carry out invariable power management.
Light compensating lamp light modulation is achieved in that MCU according to current sampling and DIM signals to modulate the working frequency of driving, to reach
To the function of control resonance current, DIM regulation inputs are analog signals, and A/D is by MCU, are reduced according to signal or increased and adjusted
The electric current of resonant network is saved, its dim signal exports full power when being 5V, if dim signal is 2.5V exports half-power, its is defeated
Go out ratio relation proportional to the voltage of light modulation DIM outputs.
The present invention is programmed by MCU and produces a square wave, and square wave is 50% driven switch Q1, Q2 generation square wave electricity
Pressure, square-wave generator is a half-bridge, and the driving voltage is that what is connected is the direct current of 400-430V；By resonance transformer, resonance
Electric capacity, gain-adjusted coil, the resonance and filter network of magnetizing inductance composition, the filter function of resonant network can be used with let us
The approximate principle of fundamental wave obtains the voltage gain of resonance, can reduce the multiple harmonic interference of output again, its output voltage compared with
Interior adjustment on a large scale, and its resonance current is sine wave, is output as sine voltage, frequency change is smaller during exporting change, and
Zero voltage transition can be realized in full-load range.
Isolation control switch has used resonance type soft switch topology, and the conducting resistance of use is low, parasitic capacitance and reversely extensive
Small FET of multiple time, working range is 100-200KHZ, so that Switching Power Supply has efficiency higher.Work as work
In underloading, working frequency can rise a height of maximum, and to make output voltage controlled, MCU is provided with highest frequency, and realizes
Detecting real-time has ensured that working condition is controlled.Output frequency is reduced close to resonance center frequeH when fully loaded, and circuit gain increases
Plus, there is provided larger voltage and current output meets the requirement on electric performance of load；Need to continue certain work when non-loaded
Pulse, reduces transformer magnetizing current as far as possible, reduces stand-by power consumption.To overcome problem MCU to be operated in interval triggering state, output
Make MOS closed modes after a string little switch periods, so average working frequency is low, and average power consumption is small, is for a long time zero load
Then close output and enter lock-out state.
The above embodiments merely illustrate the technical concept and features of the present invention, its object is to allow person skilled in the art
Scholar will appreciate that present disclosure and implement according to this that it is not intended to limit the scope of the present invention.It is all according to the present invention
The equivalent change or modification done, should all be included within the scope of the present invention.
Claims (2)
1. a kind of export resonance converter of plant light compensation ballast for lamp, including resonant capacitance, resonance transformer, starting ignition
Electric capacity and load, it is characterised in that be additionally provided with gain-adjusted coil, magnetizing inductance between starting ignition electric capacity and load
With output matching coil, wherein, two ends and the two ends of starting ignition electric capacity of magnetizing inductance are connected in parallel, and magnetizing inductance its
The one end of middle one end also with gain-adjusted coil is connected；Output matching coil has four terminals, wherein the two of homonymy terminal
It is connected with load two ends, two terminals of opposite side connect with the other end of gain-adjusted coil and the other end of magnetizing inductance respectively
Connect.
2. using claim 1 export resonance converter control method, it is characterised in that including MCU, drive module, every
From controlling switch, controlled resonant converter, voltage detection circuit and current detection circuit, MCU connects drive module, voltage detecting respectively
Loop and current detection circuit, and isolation control switch is controlled by drive module, and controlled by isolation control switch humorous
Shake converter, and voltage detection circuit and current detection circuit are respectively intended to detect starting ignition electric capacity two ends in controlled resonant converter
Voltage and current changes, and sampled data is transferred into MCU, and is controlled regulation by MCU；MCU inside square-wave generator is produced
Raw 50% alternating drive signal, square-wave voltage Vd is produced by two connected isolation control switch Q1, Q2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510019155.4A CN104540310B (en) | 2015-01-15 | 2015-01-15 | The export resonance converter and its control method of a kind of plant light compensation ballast for lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510019155.4A CN104540310B (en) | 2015-01-15 | 2015-01-15 | The export resonance converter and its control method of a kind of plant light compensation ballast for lamp |
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| CN104540310A CN104540310A (en) | 2015-04-22 |
| CN104540310B true CN104540310B (en) | 2017-06-16 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6118223A (en) * | 1997-01-27 | 2000-09-12 | Magnetek, Inc. | Power supply for discharge lamps with balanced resonant circuit |
| CN101091303A (en) * | 2004-11-29 | 2007-12-19 | 皇家飞利浦电子股份有限公司 | Multi-resonance converter |
| CN202077251U (en) * | 2011-03-21 | 2011-12-14 | 杭州电子科技大学 | Half-bridge contravariant resonant circuit |
| CN103326587A (en) * | 2013-07-17 | 2013-09-25 | 潘海铭 | Light load control method and device of LLC (Liquid Level Control) resonant converter |
| CN203435214U (en) * | 2013-08-19 | 2014-02-12 | 北京富桦明电子有限公司 | Firing circuit of high intensity discharge lamp |
| CN203504848U (en) * | 2013-10-16 | 2014-03-26 | 潍坊恒信电器有限公司 | High-energy-saving plant growth xenon light supplementary lamp |
| CN204046908U (en) * | 2014-01-08 | 2014-12-24 | 启东市顺康电子科技有限公司 | For the single-key remote-controlled dimming ballast of plant light compensation |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4479563B2 (en) * | 2005-03-28 | 2010-06-09 | パナソニック電工株式会社 | Discharge lamp lighting device, lighting device, and lighting fixture |
| JP2008053110A (en) * | 2006-08-25 | 2008-03-06 | Koito Mfg Co Ltd | Discharge lamp lighting circuit |
| JP5122838B2 (en) * | 2007-03-07 | 2013-01-16 | パナソニック株式会社 | Discharge lamp lighting device and lighting fixture |
| CN102281047A (en) * | 2010-06-13 | 2011-12-14 | 深圳市英可瑞科技开发有限公司 | LLC (resonance inductor, magnetizing inductor and resonance capacitor) series resonance combined controller |
-
2015
- 2015-01-15 CN CN201510019155.4A patent/CN104540310B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6118223A (en) * | 1997-01-27 | 2000-09-12 | Magnetek, Inc. | Power supply for discharge lamps with balanced resonant circuit |
| CN101091303A (en) * | 2004-11-29 | 2007-12-19 | 皇家飞利浦电子股份有限公司 | Multi-resonance converter |
| CN202077251U (en) * | 2011-03-21 | 2011-12-14 | 杭州电子科技大学 | Half-bridge contravariant resonant circuit |
| CN103326587A (en) * | 2013-07-17 | 2013-09-25 | 潘海铭 | Light load control method and device of LLC (Liquid Level Control) resonant converter |
| CN203435214U (en) * | 2013-08-19 | 2014-02-12 | 北京富桦明电子有限公司 | Firing circuit of high intensity discharge lamp |
| CN203504848U (en) * | 2013-10-16 | 2014-03-26 | 潍坊恒信电器有限公司 | High-energy-saving plant growth xenon light supplementary lamp |
| CN204046908U (en) * | 2014-01-08 | 2014-12-24 | 启东市顺康电子科技有限公司 | For the single-key remote-controlled dimming ballast of plant light compensation |
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| CN104540310A (en) | 2015-04-22 |
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Address after: 215143 Jiangsu city in Suzhou Province town of Xiangcheng District Wong Tai Pan Yang Industrial Park Road No. 16 spring Patentee after: At Suzhou power technology Limited by Share Ltd Address before: 215143 Jiangsu city in Suzhou Province town of Xiangcheng District Wong Tai Pan Yang Industrial Park Road No. 16 spring Patentee before: Lumlux Lighting (Suzhou) Inc. |
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