CN107529266A - A kind of high-power combustion-supporting potential circuit of inert gas electric light source - Google Patents
A kind of high-power combustion-supporting potential circuit of inert gas electric light source Download PDFInfo
- Publication number
- CN107529266A CN107529266A CN201610437769.9A CN201610437769A CN107529266A CN 107529266 A CN107529266 A CN 107529266A CN 201610437769 A CN201610437769 A CN 201610437769A CN 107529266 A CN107529266 A CN 107529266A
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- China
- Prior art keywords
- circuit
- light source
- voltage
- inert gas
- combustion
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/36—Controlling
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
Abstract
The present invention provides the generation of combustion-supporting voltage and the control method of a kind of high-power inert gas electric light source current, using the PWM controller of high accuracy, constant current, primary-side-control pwm power switch PL3536C as power conversion, constant current mode is operated in charging process, this stage output voltage linearly rises, after charging voltage reaches setting value 120V, circuit conversion is constant pressure mode of operation, makes voltages keep constant.The present invention has the advantages of device used in circuit is few, and cost is low, and reliability is high, can be widely used on high-power inert gas electric light source current the boost voltage being used as and produces.
Description
Technical field
The present invention relates to a kind of combustion-supporting potential circuit of high-power inert gas electric light source current, belongs to switch power technology neck
Domain.
Technical background
Inert gas Light Source Spectrum wavelength covers 200nm to 2000nm scopes, connects circumsolar continuous spectrum, can
Its colour temperature of light region is seen in 5500-6200K, and colour rendering is high, is widely used in light of stage, video display illumination, artificial sun, light
The fields such as spectrum testing system.Because inert gas electric light source belongs to high-intensity gas discharge lamp, inert gas electric light source is lighted,
Need to apply inert gas electric light source certain condition of work, these conditions are successively：First, applying makes inert gas electric light
Source produces the high-voltage pulse of glow discharge；Second, apply the wink for making inert gas electric light source be transitioned into arc discharge by glow discharge
Between big energy boost voltage；Three are to provide the constant-current supply of inert gas electric light source normal work；Fourth, stop after the lamp is ignited
Generation circuit work is pressed in trigger and auxiliary.This four conditions are implemented successively in the process that point is lit a lamp, and this process contains
Lamp lights the control of the acute variation process of moment, also includes the control that lamp lights rear steady operation, mutually interconnects between them
System, interwoveness.Solved by the invention is exactly the big energy boost voltage production method of ignition procedures, and this method applies to greatly
On power inert gas electric light source current, the additional high pressure part as inert gas electric light source current.
The content of the invention
A kind of device used of present invention offer is few, and cost is low, the high high-power combustion-supporting voltage of inert gas electric light source of reliability
Circuit.
A kind of high-power combustion-supporting potential circuit of inert gas electric light source, by control circuit and combustion-supporting voltage generation circuit, institute
Stating combustion-supporting voltage generation circuit includes PWA controllers, flyback transformer and filter capacitor composition, is used in stage inert gas
In electric light source current, the working condition for controlling accessory power supply is controlled, accessory power supply is worked or is closed.
Further, the control circuit controls the power supply of combustion-supporting voltage generation circuit.
Further, the filter capacitor is that two 2700Uf/160V Large Copacity high-voltage capacitances compose in parallel.
Further, the control circuit is connected with detection circuit, and accessory power supply is opened in readiness.If hold
After the operation of portable lighter point, the detection circuit of power supply judges to lighting for lamp, if lamp is already on, control circuit will close
Combustion-supporting voltage generation circuit, makes it not power to the load, and is protected.
Further, the PWM controller is operated in constant current mode in charging process, when charging voltage reaches setting value
Afterwards, constant pressure mode of operation is converted to.Flyback sourse part works under the control of control circuit, when electric power starting works, PWM
Chip begins operating in constant current mode, and output voltage linearly increases；After reaching setting operating voltage, PWM chip is operated in constant pressure
Pattern, maintain output voltage constant.
Further, the setting value is 120V.
Specific implementation method
The present invention provides a kind of high-power combustion-supporting potential circuit of inert gas electric light source, including control circuit and combustion-supporting voltage produce
Circuit, the combustion-supporting voltage generation circuit PWA controllers, flyback transformer and filter capacitor composition, is used in stage inertia
In gas electric light source current, the working condition for controlling accessory power supply is controlled, accessory power supply is worked or is closed.It is described
PWM controller is operated in constant current mode in charging process, after charging voltage reaches setting value, is converted to constant pressure mode of operation.
Flyback sourse part works under the control of control circuit, and when electric power starting works, PWM chip begins operating in constant current mould
Formula, output voltage linearly increase；After reaching setting operating voltage, PWM chip is operated in constant voltage mode, maintains output voltage permanent
It is fixed.
To implement object above, this circuit takes connected mode in detail below：
1. boost voltage control circuit D1, D2 negative electrode is connected with R2 one end, the R2 other end and R3 one end and triode Q1 bases
Extremely it is connected, R3 other end ground connection, triode Q1 grounded emitters；FET Q2 grid, triode Q1 colelctor electrode and
Resistance R4 is connected, and the resistance R4 other end is connected with+5V.FET Q2 source ground, drain electrode contact relay RY coils
One end, another termination+12V power supplys of relay RY coils.Relay RY normally opened contact connects fuse FS one end, fuse
The voltage output end of the pfc circuit of FS another termination main power source.Boost voltage control circuit input circuit is by diode D1, D2
Composition or circuit, to incoming level P1 and P2 formed logic or relation.When lighting preparation switch SW is off,
D2, D3 anode (P2) are high level, and this high level is added to triode Q1 base stage by D2, therefore Q1 colelctor electrodes export low electricity
It is flat, namely FET Q2 grids are low levels, Q2 is not turned on, and relay line bag no current is unable to adhesive and is in normally opened shape
State, boost voltage generation circuit, which cannot power, not to work, no boost voltage output, it is impossible to carry out lighting trigger action.With this
Meanwhile this high level of P2 is added to the PWM controller Enable Pin of main power source by D3, in the case of high level is effective, close
The pwm signal output of main power source PWM controller, the output loop of main power source also Non voltage output.At lighting preparation switch SW
When closure state, D2 anodes（P2）It is low level, triode Q1 colelctor electrodes export high level, FET Q2 conductings, relay
Device line contracts for fixed output quotas raw electric current and adhesive, boost voltage generation circuit are powered and worked, to the great Rong on main power source output loop
Measure energy storage filter capacitor（C4、C5）Charged.At the same time, the PWM controller of main power source also produces pwm signal output, electricity
The main output loop in source has the output end of voltage output, boost voltage and main power circuit voltage superposition in power supply, here can be with
Carry out lighting trigger action.When lighting trigger action is completed, after lamp is ignited, detection is obtained power supply and exported by state lock-in circuit
Loop current is present, and P1 is changed into high level, and this high level is added to the D1 diode cathodes of boost voltage control circuit, passes through D1
Triode Q1 base stages, Q1 conductings, its colelctor electrode output low level are returned to, namely FET Q2 grids are low level, Q2 is not led
It is logical, relay RY releases, the input service voltage that generation circuit is pressed in auxiliary is cut off, pressure generation circuit is stopped in auxiliary.
This completes all control work of a lighting process.
2. boost voltage produces part by pwm chip U1（PL3536C）And peripheral circuit, flyback transformer T, filtering
Electric capacity C4, C5 etc. are formed.The power supply of this flyback power supply is provided by foregoing boost voltage control circuit, and required is straight
Flow high pressure（400V）The relay fixed contact being derived from control circuit, one end of flyback transformer T main winding are attached thereto,
The other end of main winding is connected with pwm chip U1 5,6 pin, and R9 is the current sampling resistor on on-off circuit, one
U1 CS ends are terminated at, other end ground connection, appropriate resistance value is selected, charging current can be made to be operated in rational working range,
And the charging interval is as far as possible short.R6 connects to form voltage feedback circuit with R7, and its midpoint is connected to U1 the 3rd pin（FB）, R7's is another
One pin is grounded, and R6 another pin connects one end of transformer T boost voltage winding, transformer T boost voltage winding it is another
End ground connection.R8, D6, C1 form boost voltage current rectifying and wave filtering circuit, and the one of R8 terminates the one of transformer T boost voltage winding
End, another termination commutation diode D6 anodes, filter capacitor C1 positive pole are connected with commutation diode D6 anodes.R5 is connected on direct current
Between high voltage bus and filter capacitor C1 positive pole, the power supply circuit that is initial started up as circuit.D8, C4, C5 composition secondary
Filtering and charging energy-storing circuit.Accessory power supply works in the presence of prime boost voltage control circuit, as long as control circuit
Relay adhesive, accessory power supply obtain 400V voltages and begin to work, constant current charging mode are operated in during beginning, on C4, C5
Output voltage when reaching setting value（120V）, in constant voltage mode, output no longer rises control chip conversion work mode, and protects
It is constant to hold output voltage.
Claims (6)
1. a kind of high-power combustion-supporting potential circuit of inert gas electric light source, including control circuit and combustion-supporting voltage generation circuit, its
It is characterised by, the combustion-supporting voltage generation circuit is made up of PWA controllers, flyback transformer and filter capacitor.
2. circuit according to claim 1, it is characterised in that the control circuit controls the confession of combustion-supporting voltage generation circuit
Electricity.
3. circuit according to claim 1, it is characterised in that the filter capacitor is two 2700Uf/160V Large Copacities
High-voltage capacitance composes in parallel.
4. circuit according to claim 1, it is characterised in that the control circuit is connected with detection circuit, in preparation
Accessory power supply is opened during state.
5. circuit according to claim 1, it is characterised in that the PWA controllers are operated in constant current mould in charging process
Formula, after charging voltage reaches setting value, be converted to constant pressure mode of operation.
6. circuit according to claim 5, it is characterised in that the setting value is 120V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610437769.9A CN107529266A (en) | 2016-06-19 | 2016-06-19 | A kind of high-power combustion-supporting potential circuit of inert gas electric light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610437769.9A CN107529266A (en) | 2016-06-19 | 2016-06-19 | A kind of high-power combustion-supporting potential circuit of inert gas electric light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107529266A true CN107529266A (en) | 2017-12-29 |
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ID=60733699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610437769.9A Pending CN107529266A (en) | 2016-06-19 | 2016-06-19 | A kind of high-power combustion-supporting potential circuit of inert gas electric light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107529266A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101052259A (en) * | 2006-03-31 | 2007-10-10 | 优志旺电机株式会社 | Inert gas fluorescent lamp lighting apparatus |
| CN201988542U (en) * | 2010-10-21 | 2011-09-28 | 李小琴 | Safe environmental protection plasma processor |
| CN104980038A (en) * | 2015-07-10 | 2015-10-14 | 广州彩熠灯光有限公司 | Combustion-supporting voltage circuit for high-power xenon lamp |
-
2016
- 2016-06-19 CN CN201610437769.9A patent/CN107529266A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101052259A (en) * | 2006-03-31 | 2007-10-10 | 优志旺电机株式会社 | Inert gas fluorescent lamp lighting apparatus |
| CN201988542U (en) * | 2010-10-21 | 2011-09-28 | 李小琴 | Safe environmental protection plasma processor |
| CN104980038A (en) * | 2015-07-10 | 2015-10-14 | 广州彩熠灯光有限公司 | Combustion-supporting voltage circuit for high-power xenon lamp |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171229 |
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| WD01 | Invention patent application deemed withdrawn after publication |