CN104105315B - DC low-voltage power supply four-push -pull injection phase-locking power synthesis low-pressure sodium lamp group - Google Patents
DC low-voltage power supply four-push -pull injection phase-locking power synthesis low-pressure sodium lamp group Download PDFInfo
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- CN104105315B CN104105315B CN201310160079.XA CN201310160079A CN104105315B CN 104105315 B CN104105315 B CN 104105315B CN 201310160079 A CN201310160079 A CN 201310160079A CN 104105315 B CN104105315 B CN 104105315B
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- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 title claims abstract description 29
- 229910052708 sodium Inorganic materials 0.000 title claims abstract description 29
- 239000011734 sodium Substances 0.000 title claims abstract description 29
- 238000002347 injection Methods 0.000 title claims abstract description 14
- 239000007924 injection Substances 0.000 title claims abstract description 14
- 230000015572 biosynthetic process Effects 0.000 title abstract description 6
- 238000003786 synthesis reaction Methods 0.000 title abstract description 6
- 230000010355 oscillation Effects 0.000 claims abstract description 20
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- 238000001514 detection method Methods 0.000 claims description 7
- 239000004065 semiconductor Substances 0.000 claims description 5
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- 238000002788 crimping Methods 0.000 claims description 3
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- 238000005286 illumination Methods 0.000 abstract description 7
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Abstract
The invention relates to the technical field of electric light source illumination and specifically discloses a DC low-voltage power supply four-push -pull injection phase-locking power synthesis low- pressure sodium lamp group. A self-oscillation chip A and push-pull inverter A' output power and a self-oscillation chip B and push-pull inverter B' output power are fed into an addition coupler TB1. A self-oscillation chip C and push-pull inverter C' output power and a self-oscillation chip D and push-pull inverter D' output power are fed into an addition coupler TB2. The addition coupler TB1 and the addition coupler TB2 are fed into an addition coupler TB3 for power synthesis, and the synthesized power further undergoes voltage boost and is then connected to a lamp tube circuit for turning the low-pressure sodium lamp group on. Reference signals are respectively injected into CT ends of the four self-oscillation chips for phase locking, and signals of a lamp tube abnormal current detector are input to the SD ends of the four self-oscillation chips, so that oscillation is rapidly halted, push-pull inverter power MOS transistors are rapidly turned off, large-power illumination is achieved, and luminance declination caused by power unbalance resulted from oscillation frequency change since temperature rise of a device is too high is avoided. The DC low-voltage power supply four-push -pull injection phase-locking power synthesis low-pressure sodium lamp group is suitable for DC low-voltage power supply high-power low-pressure sodium lamp group illumination occasions.
Description
Technical field
The present invention relates to electric source lighting technical field, specifically a kind of DC low voltage power supply four-push-pull injection lock power combing
Low-pressure sodium lamp group.
Background technology
Generally with LC or RC agitators as low-pressure sodium lamp electric light source, the frequency of oscillation of generation receives temperature change to prior art
Stability difference affects power to be not sufficiently stable, and causes light intensity to decline, although simple structure, low cost.But high-power illumination to be obtained
Device current certainly will be increased, especially DC low voltage power supply is powered, increase output relies on current work, hunting power Guan Gong
Sharp increase temperature rise is too high causes frequency of oscillation to change for consumption, and light as a result can be made unbalance with frequency change power magnitude.Meanwhile, high current
Declined by the high magnetic permeability of coil temperature rise, the impedance that diminishes of saturation inductors amount tends to zero, and the light fixture working time is with temperature rise just
Accelerate device aging than, temperature rise, gently then the unstable brightness of lamp luminescence declines, it is heavy then burn out device reduction of service life.It is inverse
Variable power superposition drags high-power lamp, solves device power capacity limit.But, power combing oscillation phase should be consistent, with gram
Take non-linear intermodulation power unbalanced.
The content of the invention
It is an object of the invention to provide DC low voltage power supply is powered, high frequency stabilization Phase synchronization high-power illumination is vibrated in inversion
A kind of DC low voltage power supply four-push-pull injection locks power combing low-pressure sodium lamp group.
The technology of the present invention solution is：Including DC low voltage power supply, low-pressure sodium lamp pipe group, benchmark crystal oscillator, frequency divider, four
The self-oscillation chip A of individual model IR2156, self-oscillation chip B, self-oscillation chip C, self-oscillation chip D, recommend inverter A ',
Inverter B ' is recommended, inverter C ' is recommended, is recommended inverter D ', is added bonder TB1, be added bonder TB2, be added bonder
TB3, tube circuit, abnormal condition of lamp tube amperometric, wherein, benchmark crystal oscillator is by quartz-crystal resonator, six phase inverters and electricity
Resistance, electric capacity composition, first phase inverter input and output two ends bridging biasing resistor, first phase inverter input and output two ends
Connect electric capacity C respectively1、C2One end, electric capacity C1、C2The other end is grounded, meanwhile, first phase inverter input is with output two ends also
The quartz-crystal resonator of bridging series connection trimmer, second phase inverter access benchmark crystal oscillation signal, divided device connection four
Individual phase inverter, self-oscillation chip include agitator, recommend inverse changing driving circuit, lamp failure closing control device SD, four self-oscillations
Chip recommend inverse changing driving circuit output connect respectively constituted by two high-power MOS field effect transistor recommend inverter A ',
Inverter B ' is recommended, inverter C ' is recommended, is recommended inverter D ', self-oscillation chip A recommends inverter A ' output power transformers
T1Inverter B ' output power transformer T are recommended with self-oscillation chip B2Feed-in is added bonder TB1, self-oscillation chip C recommends inverse
Become device C ' output power transformer T3Inverter D ' output power transformer T are recommended with self-oscillation chip D4Feed-in is added bonder
TB2, it is added bonder TB1Be added bonder TB2Feed-in is added bonder TB3Power combing, liter crimping tube circuit ignite low
Pressure sodium lamp pipe group starter, tetra- phase inverters of benchmark crystal oscillation signal Jing are injected separately into four self-oscillation chip CTEnd locking phase, lamp
Pipe abnormal current detector signal accesses four self-oscillation chip SD ends, and inverter power MOS fields effect is recommended in quick failure of oscillation shut-off
Ying Guan, DC low voltage power supply access benchmark crystal oscillator, frequency divider, four self-oscillation chips, four recommend inverter power supply end；
Tube circuit is by low-pressure sodium lamp pipe G1、GnOne end is sequentially connected electric capacity CU1、CUn, inductance LU1、LUnAfterwards, reconnect phase
Plus bonder TB3Inductance TB3L2One end, be added bonder TB3Inductance TB3L2The other end is grounded, low-pressure sodium lamp pipe G1、GnIt is another
Mutual inductance ring inductance LS is detected through lamp current in end1Ground connection, low-pressure sodium lamp pipe G1、GnDistinguish shunt capacitance CY in two ends1、CYn, lamp electricity
Stream detection mutual inductance ring inductance LS1One end connects diode VD1Anode, lamp current detection mutual inductance ring inductance LS1Another termination
Ground, diode VD1Negative electrode connects electric capacity C8, resistance R13One end, electric capacity C8, resistance R13The other end is grounded, diode VD1Negative electrode
It is also connected with resistance R8One end, resistance R8Another terminating resistor R9One end and field effect transistor Q3Grid, resistance R9The other end and field effect
Should pipe Q3Source ground, field effect transistor Q3Drain electrode triggering self-oscillation chip lamp failure protection controller SD ends, quick failure of oscillation shut-off push away
Draw inverter power metal-oxide-semiconductor field effect transistor.
The present invention produces good effect：Solve DC low-voltage and power four to recommend inversion and vibrate high frequency stabilization Phase synchronization power and close
Into reaching single self-oscillation chip and recommend the high-power low-pressure sodium lamp group illumination that inversion is difficult to obtain, it is to avoid device temperature rise is shaken
Frequency change power imbalances are swung, lamp lighting quality is improved, steady light increases the service life.
Description of the drawings
Fig. 1 technical solution of the present invention theory diagrams
Fig. 2 benchmark crystal oscillating circuits
Fig. 3 recommends self-oscillation inverter circuit
Fig. 4 DC low voltage power supplies four-push-pull injection locks power combing low-pressure sodium lamp group circuit
Specific embodiment
With reference to Fig. 1,2,3,4 (, so that self-oscillation chip A recommends inverter A ' circuits as an example, remaining circuit is identical for Fig. 3), this
Bright specific embodiment and embodiment：Including DC low voltage power supply 13, low-pressure sodium lamp pipe group 9, benchmark crystal oscillator 11, frequency divider IC2
12nd, the self-oscillation chip A1 of four models IR2156, self-oscillation chip B2, self-oscillation chip C3, self-oscillation chip D4, recommend
Inverter A ', recommend inverter B ', recommend inverter C ', recommend inverter D ', be added bonder TB15th, it is added bonder TB2
6th, it is added bonder TB37th, tube circuit 8, abnormal condition of lamp tube amperometric 10, wherein, benchmark crystal oscillator 11 is humorous by quartz crystal
Shake device JT, six inverter ics1-1、IC1-2、IC1-3、IC1-4、IC1-5、IC1-6And resistance, electric capacity composition, first phase inverter
IC1-1Input and output two ends bridging biasing resistor R1, first inverter ic1-1Input is connected electric capacity C respectively with output two ends1、
C2One end, electric capacity C1、C2The other end is grounded, meanwhile, first inverter ic1-1Input also bridges fine setting of connecting with output two ends
Electric capacity C0Quartz-crystal resonator JT, second inverter ic1-2Access benchmark crystal oscillation signal, divided device IC212 frequency dividing ÷
N connects four inverter ics1-3、IC1-4、IC1-5、IC1-6, self-oscillation chip include agitator, recommend inverse changing driving circuit, lamp therefore
Barrier closing control device SD, the inverse changing driving circuit output of recommending of four self-oscillation chips connect respectively by two high-power MOSs
Field effect transistor Q1、Q2Composition is recommended inverter A ', recommends inverter B ', recommend inverter C ', recommend inverter D ', self-oscillation core
Piece A1 recommends inverter A ' output power transformer T1Inverter B ' output power transformer T are recommended with self-oscillation chip B22Feed-in
It is added bonder TB15, self-oscillation chip C3 recommend inverter C ' output power transformer T3Inversion is recommended with self-oscillation chip D4
Device D ' output power transformer T4Feed-in is added bonder TB26, it is added bonder TB15 be added bonder TB26 feed-in phases
Plus bonder TB37 power combings, rise crimping tube circuit 8 and ignite 9 starter of low-pressure sodium lamp pipe group, 11 signal Jing of benchmark crystal oscillator point
Frequency device IC2After frequency dividing, connect four inverter ics1-3、IC1-4、IC1-5、IC1-6Output signal f0-1、f0-2、f0-3、f0-4Note respectively
Enter the C of four self-oscillations chip A1, B2, C3, D4TEnd locking phase, 10 signal of abnormal condition of lamp tube amperometric access four certainly
Inverter power metal-oxide-semiconductor field effect transistor, DC low voltage power supply are recommended in the SD ends of vibration chip A1, B2, C3, D4, quick failure of oscillation shut-off
13 access benchmark crystal oscillators 11, frequency divider 12, four self-oscillation chip A1, B2, C3, D4 tetra- recommend inverter power supply end；
Tube circuit 8 is by low-pressure sodium lamp pipe 9G1、GnOne end is sequentially connected electric capacity CU1、CUn, inductance LU1、LUnAfterwards, reconnect
It is added bonder TB37 inductance TB3L2One end, be added bonder TB37 inductance TB3L2The other end is grounded, low-pressure sodium lamp pipe
9G1、GnThe other end detects mutual inductance ring inductance LS through lamp current1Ground connection, low-pressure sodium lamp pipe 9G1、GnDistinguish shunt capacitance in two ends
CY1、CYn, lamp current detection mutual inductance ring inductance LS1One end connects diode VD1Anode, lamp current detection mutual inductance ring inductance
LS1The other end is grounded, diode VD1Negative electrode connects electric capacity C8, resistance R13One end, electric capacity C8, resistance R13The other end is grounded, and two
Pole pipe VD1Negative electrode is also connected with resistance R8One end, resistance R8Another terminating resistor R9One end and field effect transistor Q3Grid, resistance R9Separately
One end and field effect transistor Q3Source ground, field effect transistor Q3Drain electrode triggering self-oscillation chip lamp failure protection controller SD ends, quickly
Inverter power metal-oxide-semiconductor field effect transistor is recommended in failure of oscillation shut-off.
IC3Pin mark function：VCCPower end, CTMeet oscillator timing capacitor C4, RTMeet agitator timing resistor R2, HO
Drive Q1, LO driving Q2, CS current detectings, the shut-off protection control of SD lamp failures, COM ground connection.
Self-oscillation chip IC3By resistance R7Blood pressure lowering, electric capacity C7Filtering supply power supply VCCVibration is produced, Jing HO, LO drive and recommend
Inverter, high-power MOS tube Q1、Q2Turn in turn, end half cycle, transformator T1Midpoint Jing inductance LF1Electric capacity C6Decoupling filtering connects
DC low voltage power supply+V.By transformator T1Output Jing second orders are added coupler power synthesis feed-in lamp load.
It is added bonder TB1、TB2Respectively two recommending output mode power are superimposed, bonder TB is added3Four are recommended defeated
Go out two overlapping of order summation of power and be sent to lamp load, four recommend inverter input voltage, frequency, phase place and load identical, balanced electricity
Resistance R10、R11、R12Idle.When certain inverter breaks down no power output, it is inverse that corresponding circuits equalizing resistance absorbs pairing
Become device power, though whole lamp power reduces remaining to keep illumination, improve light fixture reliability.
Power combing drags large-power lamp, and dilatation is flexible, reliable, but requires self-oscillation chip oscillating voltage phase place one
Cause, to eliminate, non-linear intermodulation active power is unbalanced to obtain stable output.For this purpose, introducing injection phase-locking solves power
Synthesis phase simultaneous techniquess.Without voltage-controlled tuning, phase discriminator, loop filter, circuit structure is simple, and performance is excellent for injection phase-locking
More, fringe cost is low.Injection phase-locking there substantially is not difference with looped phase locking, is suitable to power combing large-power lamp stable oscillation stationary vibration frequency
Rate Phase synchronization, stable output avoid the too high power imbalances of device temperature rise, steady light from increasing the service life.
Benchmark crystal oscillator quartz resonator quality factor are high, and frequency is minimum by temperature change, and highly stable to make benchmark accurate.Base
The divided injection self-oscillation chip C of calibration signalTEnd locking phase.Unimplanted reference signal self-oscillation chip RC agitators are produced from
By frequency of oscillation, reference signal RC oscillating voltage and its Vector modulation are injected, phase is locked by self-oscillation chip additive mixing
Position, oscillator signal only have a fixed phase contrast with injection reference signal.Synchronization bandwidth and injecting power direct ratio, are vibrated with RC
Device loaded Q inverse ratio, as reference signal injects the input of RC agitators, high gain, small-power locking.
The integral multiple of frequency of oscillation is locked out due to injecting reference frequency, or frequency of oscillation is the integral multiple of reference frequency,
The high wen-frequency characteristics quartz resonator of reference signal frequency dividing injection apolegamy upper frequency, locking tens of to hundreds of kilo hertzs of LC or RC shake
Swing device.Frequency divider IC2Binary system or decade computer frequency dividing.
Electric capacity CY1、CYnMatching fluorescent tube G1、Gn, electric capacity CU1、CUnWith inductance LU1、LUnResonance ignites in reference signal frequency
Starter.
Lamp abnormality detection mutual inductance ring inductance LS1Voltage diode VD1Detection, electric capacity C8, resistance R13Filtering, Jing SD, resistance
R8、R9Partial pressure, field pipe Q3Triggering self-oscillation chip SD ends, when trigger voltage high level, rapid failure of oscillation is rapidly switched off recommends inversion
Device power tube Q1、Q2, so as not to it is impaired.Lamp abnormal power pipe high current resistance R6Pressure drop Jing resistance R4, electric capacity C5Open self-oscillation core
Inverter power tube is protected further in piece current detecting CS end.
Embodiment DC low voltage power supply 36V, four recommend inverter current 6A, drive 5 36W or 2 90W low-pressure sodium lamp pipe groups
G1, Gn, efficiency 84%, inverter current is little, and long-time irradiation light is stable.Occasion is illuminated suitable for high-power low-pressure sodium lamp.
Claims (1)
1. a kind of DC low voltage power supply four-push-pull injection locks power combing low-pressure sodium lamp group, including DC low voltage power supply, low-pressure sodium lamp
Pipe group, it is characterised in that：Also include benchmark crystal oscillator, frequency divider, the self-oscillation chip A of four models IR2156, self-oscillation core
Piece B, self-oscillation chip C, self-oscillation chip D, inverter A ' is recommended, inverter B ' is recommended, is recommended inverter C ', recommends inverter
D ', addition bonder TB1, be added bonder TB2, be added bonder TB3, tube circuit, abnormal condition of lamp tube amperometric, wherein,
Benchmark crystal oscillator is made up of quartz-crystal resonator, six phase inverters and resistance, electric capacity, and first phase inverter is input into and output two ends
Bridging biasing resistor, first phase inverter input are connected electric capacity C respectively with output two ends1、C2One end, electric capacity C1、C2The other end
Ground connection, meanwhile, first phase inverter input constitutes anti-with the quartz-crystal resonator that output two ends also bridge trimmer of connecting
Feedback network produces reference oscillator signal, and second phase inverter shaping buffering of benchmark crystal oscillation signal Jing connects fraction frequency device input end, its
Remaining the input connection frequency divider outfan of four phase inverters, the output of four phase inverters is injected separately into four self-oscillation chip CTEnd
Locking phase, self-oscillation chip include agitator, recommend inverse changing driving circuit, lamp failure closing control device SD, four self-oscillations
Chip recommend inverse changing driving circuit output connect respectively constituted by two high-power MOS field effect transistor recommend inverter A ',
Inverter B ' is recommended, inverter C ' is recommended, is recommended inverter D ', self-oscillation chip A recommends inverter A ' output power transformers
T1Inverter B ' output power transformer T are recommended with self-oscillation chip B2Feed-in is added bonder TB1, self-oscillation chip C recommends inverse
Become device C ' output power transformer T3Inverter D ' output power transformer T are recommended with self-oscillation chip D4Feed-in is added bonder
TB2, it is added bonder TB1Be added bonder TB2Feed-in is added bonder TB3Power combing, liter crimping tube circuit ignite low
Pressure sodium lamp pipe group starter, abnormal condition of lamp tube current detector signal access four self-oscillation chip SD ends, and quick failure of oscillation shut-off is recommended
Inverter power metal-oxide-semiconductor field effect transistor, DC low voltage power supply access benchmark crystal oscillator, frequency divider, four self-oscillation chips, four recommend
Inverter power supply end；
Tube circuit is by low-pressure sodium lamp pipe G1…GnOne end is sequentially connected inductance LU1…LUn, electric capacity CU1…CUnAfterwards, reconnect phase
Plus bonder TB3Inductance TB3L2One end, be added bonder TB3Inductance TB3L2The other end is grounded, low-pressure sodium lamp pipe G1…GnSeparately
Mutual inductance ring inductance LS is detected through lamp current in one end1Ground connection, low-pressure sodium lamp pipe G1…GnDistinguish shunt capacitance CY in two ends1…CYn,
Lamp current detects mutual inductance ring inductance LS1One end connects diode VD1Anode, lamp current detection mutual inductance ring inductance LS1The other end
Ground connection, diode VD1Negative electrode connects electric capacity C8, resistance R13One end, electric capacity C8, resistance R13The other end is grounded, diode VD1It is cloudy
Pole is also connected with resistance R8One end, resistance R8Another terminating resistor R9One end and field effect transistor Q3Grid, resistance R9The other end and field
Effect pipe Q3Source ground, field effect transistor Q3Drain electrode triggering self-oscillation chip lamp failure protection controller SD ends, quick failure of oscillation shut-off
Recommend inverter power metal-oxide-semiconductor field effect transistor.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310160079.XA CN104105315B (en) | 2013-04-15 | 2013-04-15 | DC low-voltage power supply four-push -pull injection phase-locking power synthesis low-pressure sodium lamp group |
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| CN201310160079.XA CN104105315B (en) | 2013-04-15 | 2013-04-15 | DC low-voltage power supply four-push -pull injection phase-locking power synthesis low-pressure sodium lamp group |
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| CN104105315B true CN104105315B (en) | 2017-04-12 |
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Family Cites Families (1)
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| JP4617746B2 (en) * | 2004-07-07 | 2011-01-26 | 国産電機株式会社 | Control device for internal combustion engine-driven vehicle equipped with power supply device |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5192896A (en) * | 1992-04-10 | 1993-03-09 | Kong Qin | Variable chopped input dimmable electronic ballast |
| WO1999055125A1 (en) * | 1998-04-21 | 1999-10-28 | Power Circuit Innovations, Inc. | Dimming ballast and drive method for lamps using a frequency controlled, loosely-coupled transformer |
| CN201345774Y (en) * | 2008-08-21 | 2009-11-11 | 龙岩市易佰特节能照明有限公司 | Intelligent light-adjusting electronic ballast of high-output fluorescent lamp |
| CN202050584U (en) * | 2011-04-03 | 2011-11-23 | 阮树成 | Four-bridge oscillation high-voltage sodium lamp utilizing solar power |
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