CN103327685B - Solar energy power source four-full-bridge injection locking LED array lamp - Google Patents

Solar energy power source four-full-bridge injection locking LED array lamp Download PDF

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Publication number
CN103327685B
CN103327685B CN201310155429.3A CN201310155429A CN103327685B CN 103327685 B CN103327685 B CN 103327685B CN 201310155429 A CN201310155429 A CN 201310155429A CN 103327685 B CN103327685 B CN 103327685B
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full
self
resistance
power
oscillation
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CN103327685A (en
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阮树成
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ZHEJIANG MINGHUI LUMINESCENCE TECHNOLOGY CO., LTD.
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阮树成
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Abstract

The invention relates to the technical field of electric light source lighting, in particular to a solar energy power source four-full-bridge injection locking LED array lamp. Signals are fed into an adding coupler TB1 through a self-oscillation chip A and an output power transformer T1 of a full-bridge inverter A' and through a self-oscillation chip B and an output power transformer T2 of a full-bridge inverter B', signals are fed into an adding coupler TB2 through a self-oscillation chip C, an output power transformer T3 of a full-bridge inverter C', a self-oscillation chip D and an output power transformer T4 of a full-bridge inverter D', the signals of the adding coupler TB1 and the signals of the adding coupler TB2 are fed into an adding coupler TB3, power synthesis is conducted, the signals are fed into a lamp tube starter through full-wave rectification, signals of a benchmark crystal oscillator are injected into the four self-oscillation chips through a frequency divider so as to enable phase positions to be locked and power to be stably output, and lamplight descending caused by excessive temperature rising, oscillation frequency changes and power imbalance of a device is avoided. Signals of a lamp tube abnormal current detector are connected with SD end protective power tubes of the four self-oscillation chips. The solar energy power source four-full-bridge injection locking LED array lamp is suitable for lighting occasions of the solar energy power source high-power LED array lamps.

Description

Sun-generated electric power four full-bridge note lock LED array lamp
Technical field
The present invention relates to electric source lighting technical field, specifically a kind of sun-generated electric power four full-bridge note lock LED array lamp.
Background technology
Prior art electronic transformer usually with LC or RC oscillator as LED array lamp electric light source, it is stable not that the frequency of oscillation of generation affects power by temperature change stability difference, causes light intensity to decline, although structure is simple, cost is low.But obtaining high-power illumination certainly will increased device electric current, and make the too high frequency of oscillation that causes of hunting power pipe power consumption sharp increase temperature rise change, result can make light unbalance with frequency change power magnitude.Meanwhile, big current by coil temperature rise high magnetic permeability decline, saturation inductors amount diminish impedance trend zero, light fixture operating time and temperature rise direct ratio, device aging is accelerated in temperature rise, and gently then the unstable brightness of lamp luminescence declines, heavy then burn out device reduction of service life.The superposition of Authorization Notice No. CN201994854U tetra-bridge vibration inverter power drags large-power lamp, solves the restriction of device power capacity.But power combing oscillating voltage phase place shortcoming is consistent, and non-linear intermodulation effects power is unbalanced.
Summary of the invention
The object of this invention is to provide sun-generated electric power to power, inversion is vibrated a kind of sun-generated electric power four full-bridge note lock LED array lamp of high frequency stabilization Phase synchronization high-power illumination.
The technology of the present invention solution is: comprise sun-generated electric power, LED array lamp, benchmark crystal oscillator, frequency divider, four models be UBA2030T self-oscillation chip A, self-oscillation chip B, self-oscillation chip C, self-oscillation chip D, full-bridge inverter A ', full-bridge inverter B ', full-bridge inverter C ', full-bridge inverter D ', be added coupler TB 1, be added coupler TB 2, be added coupler TB 3, tube circuit, abnormal condition of lamp tube current detector, wherein, benchmark crystal oscillator is by quartz-crystal resonator, six inverters and resistance, electric capacity forms, an inverter constrained input two ends cross-over connection biasing resistor, and difference earth electric capacity, simultaneously, the quartz-crystal resonator of cross-over connection series connection trimmer, another inverter shaping Buffer output benchmark crystal oscillation signal, through frequency divider tap four inverters, self-oscillation chip includes oscillator, full-bridge inverting drive circuit, lamp failure closing controller SD, the output of self-oscillation chip connects by four high-power MOS field effect transistor two groups complementary half-bridge formation full-bridge inverter A ' through full-bridge inverting drive circuit respectively, full-bridge inverter B ', full-bridge inverter C ', full-bridge inverter D ', self-oscillation chip A full-bridge inverter A ' output power transformer T 1with self-oscillation chip B full-bridge inverter B ' output power transformer T 2feed-in is added coupler TB 1, self-oscillation chip C full-bridge inverter C ' output power transformer T 3with self-oscillation chip D full-bridge inverter D ' output power transformer T 4feed-in is added coupler TB 2, be added coupler TB 1with be added coupler TB 2feed-in is added coupler TB 3power combing, connect tube circuit coupling LED array lamp through full-wave rectifying circuit, wherein, full-wave rectifying circuit is by being added coupler TB 3inductance TB 3l 2, two high-power MOS field effect transistor Q 6, Q 7, rectifier diode VD 5, VD 6, resistance R 14, R 15, R 16, R 17, current detecting magnet ring inductance L 7, detector diode VD 7, filter capacitor C 12, resistance R 18composition, two high-power MOS field effect transistor Q 6, Q 7source electrode connects respectively and is added coupler TB 3inductance TB 3l 2two ends, resistance R 14, R 15the mid point of series connection meets high-power MOS field effect transistor Q 6grid, resistance R 14meet high-power MOS field effect transistor Q 7source electrode, resistance R 16, R 17the mid point of series connection meets high-power MOS field effect transistor Q 7grid, resistance R 16meet high-power MOS field effect transistor Q 6source electrode, two high-power MOS field effect transistor Q 6, Q 7source electrode, drain rectifier diode VD in parallel 5, VD 6, two high-power MOS field effect transistor Q 6, Q 7drain electrode is connected in parallel as full-wave rectification output, resistance R 15, R 17connect full-wave rectification output, be added coupler TB 3inductance TB 3l 2mid point detects magnet ring ground connection through lamp current, magnet ring inductance L 7one terminating diode VD 7anode, magnet ring inductance L 7other end ground connection, electric capacity C 12, resistance R 18other end ground connection, diode VD 7negative electrode shunt capacitance C 12, resistance R 18filtering, through resistance R 4, R 5dividing potential drop access field effect transistor Q 5trigger self-oscillation chip lamp failure closing controller SD, benchmark crystal oscillation signal is through frequency divider and connect four inverters export four the self-oscillation chip EXO end locking phases of injection respectively, abnormal condition of lamp tube current detector signal accesses four self-oscillation chip SD and holds, quick failure of oscillation turns off full-bridge inverter MOS field effect tube, sun-generated electric power low pressure access benchmark crystal oscillator, frequency divider power end, sun-generated electric power high pressure accesses the power end of four self-oscillation chips, four full-bridge inverters,
And sun-generated electric power is by photovoltaic battery panel E 1, blocking diode VD 1, anti-reverse diode VD 2, relay J and storage battery E 2, resistance R 10, switch S, time base chip IC 4and overvoltage sample circuit, under-voltage sample circuit composition, photovoltaic battery panel E 1output electrode anode series connection blocking diode VD 1, relay contact J-1 one end, the other end of relay contact J-1 connects storage battery E 2electrode anode, overvoltage sample resistance R 6, under-voltage sample resistance R 8, time base chip IC 4stabilized voltage power supply filter resistance R 10and be connected to the LED array lamp DW of switch S, cross pressure-controlled sample resistance R 6, RP 1, R 7successively series connection after and in storage battery E 2positive and negative electrode two ends, RP 1base chip IC during access 4high level trigger end TH, under-voltage control sample resistance R 8, RP 2, R 9storage battery E is parallel to successively after series connection 2positive and negative electrode two ends, RP 2base chip IC during access 4low level trigger end TL, time base chip IC 4export contact relay J, storage battery E 2negative terminal seal in ground connection after quick acting fuse F, storage battery E 2positive and negative electrode two ends anti-reverse diode VD in parallel 2.
The present invention produces good effect: effectively solve inversion and to vibrate high frequency stabilization and Phase synchronization power combing, reach the high-power illumination that single self-oscillation chip full-bridge inverting is difficult to obtain, device temperature rise frequency of oscillation is avoided to change power imbalances, improve lamp lighting quality, steady light increases the service life.
Accompanying drawing explanation
Fig. 1 technical solution of the present invention theory diagram
Fig. 2 benchmark crystal oscillating circuit
Fig. 3 full-bridge self-oscillation inverter circuit
Fig. 4 solar-electricity source circuit
Fig. 5 sun-generated electric power four full-bridge note lock LED array lamp circuit
Embodiment
With reference to Fig. 1,2,3,4,5 (Fig. 3 is for self-oscillation chip A full-bridge inverter A ' circuit, remaining circuit is identical), the specific embodiment of the invention and embodiment: comprise sun-generated electric power 11, self-oscillation chip A1, self-oscillation chip B2, self-oscillation chip C3, self-oscillation chip D4, full-bridge inverter A ', full-bridge inverter B ', full-bridge inverter C ', full-bridge inverter D ' that LED array lamp 9, benchmark crystal oscillator 12, frequency divider 13, four models are UBA2030T, be added coupler TB 15, coupler TB is added 26, coupler TB is added 37, full-wave rectifying circuit 8, abnormal condition of lamp tube current detector 10, wherein, benchmark crystal oscillator 12 is made up of quartz-crystal resonator JT, six inverters and resistance, electric capacity, an inverter ic 1-1constrained input two ends cross-over connection biasing resistor R 1, and difference earth electric capacity C 1, C 2, meanwhile, cross-over connection series connection trimming capacitor C 0quartz-crystal resonator JT, another inverter ic 1-2shaping Buffer output benchmark crystal oscillator 12 signal, through frequency divider 13 frequency division ÷ N tap four inverter ics 1-3, IC 1-4, IC 1-5, IC 1-6, self-oscillation chip UBA2030T includes oscillator, full-bridge inverting drive circuit, lamp failure closing controller SD, and the output of self-oscillation chip connects by four high-power MOS field effect transistor Q through full-bridge inverting drive circuit respectively 1, Q 2, Q 3, Q 4two groups of complementary half-bridges form full-bridge inverter A ', full-bridge inverter B ', full-bridge inverter C ', full-bridge inverter D ', self-oscillation chip A1 full-bridge inverter A ' output power transformer T 1with self-oscillation chip B2 full-bridge inverter B ' output power transformer T 2feed-in is added coupler TB 15, self-oscillation chip C3 full-bridge inverter C ' output power transformer T 3with self-oscillation chip D4 full-bridge inverter D ' output power transformer T 4feed-in is added coupler TB 26, be added coupler TB 15 be added coupler TB 26 feed-ins are added coupler TB 37 power combing, through full-wave rectifying circuit 8 sending and receiving optical diode LED array lamp 9, wherein, full-wave rectifying circuit 8 is by addition coupler TB 3inductance TB 3l 2, two high-power MOS field effect transistor Q 6, Q 7, rectifier diode VD 5, VD 6, resistance R 14, R 15, R 16, R 17, current detecting magnet ring inductance L 7, detector diode VD 7, filter capacitor C 12, resistance R 18composition, two high-power MOS field effect transistor Q 6, Q 7source electrode connects respectively and is added coupler TB 3inductance TB 3l 2two ends, resistance R 14, R 15the mid point of series connection meets high-power MOS field effect transistor Q 6grid, resistance R 14meet high-power MOS field effect transistor Q 7source electrode, resistance R 16, R 17the mid point of series connection meets high-power MOS field effect transistor Q 7grid, resistance R 16meet high-power MOS field effect transistor Q 6source electrode, two high-power MOS field effect transistor Q 6, Q 7source electrode, drain rectifier diode VD in parallel 5, VD 6, two high-power MOS field effect transistor Q 6, Q 7drain electrode is connected in parallel as full-wave rectification output, resistance R 15, R 17connect full-wave rectification output, be added coupler TB 3inductance TB 3l 2mid point detects magnet ring ground connection through lamp current, magnet ring inductance L 7one terminating diode VD 7anode, magnet ring inductance L 7other end ground connection, electric capacity C 12, resistance R 18other end ground connection, diode VD 7negative electrode shunt capacitance C 12, resistance R 18filtering, through resistance R 4, R 5dividing potential drop access field effect transistor Q 5trigger self-oscillation chip lamp failure closing controller SD, benchmark crystal oscillator 12 signal is through frequency divider 13 and connect four inverter ics 1-3, IC 1-4, IC 1-5, IC 1-6export f 0-1, f 0-2, f 0-3, f 0-4the EXO injecting four self-oscillation chips A1, B2, C3, D4 respectively holds locking phase, abnormal condition of lamp tube current detector 10 signal accesses the SD end of four self-oscillation chips A1, B2, C3, D4, quick failure of oscillation turns off full-bridge inverter MOS field effect tube, sun-generated electric power 11 low pressure access benchmark crystal oscillator 12, frequency divider 13 power end, sun-generated electric power 11 high pressure accesses the power end of four self-oscillation chip A1, B2, C3, D4 and four full-bridge inverter A ', B ', C ', D '.
IC 3pin mark function: HV high voltage source, V dDlow-tension supply, RC oscillator inputs, and the external oscillator signal of EXO, GHL drives Q 1, GLL drives Q 2, GHR drives Q 3, GLR drives Q 4, SHL bridge road exports and meets Q 1source electrode, output transformer, SHR bridge road exports and meets Q 3source electrode, electric capacity C 7, the enable control in BE bridge road, the enable reference in BER bridge road, DTC Power MOSFET, the floating power supply of FSL, the floating power supply of FSR, SD closes vibration, GND ground connection.IC 4pin mark function: V cCpower end, TL low level triggers, and TH high level triggers, V mRreset, Vc voltage control, DIS discharges, V 0export, GND ground connection.
Self-oscillation chip IC 3power supply termination sun-generated electric power high pressure HV, generates low-tension supply V by chip internal dDthere is provided and produce vibration, electric capacity C 3filtering ripple, bootstrap capacitor C after vibration starts 5charging, floating power supply full-bridge inverter diagonal power MOS pipe Q 1, Q 4conducting, Q 2, Q 3cut-off, now electric capacity C 6charging, floating power supply Q 1, Q 4conducting, Q 2, Q 3cut-off, take turns to operate half period, and output voltage is square wave.Full-bridge alternately switches by 1/2 FREQUENCY CONTROL of RC oscillator vibrates frequency, resistance R 2control waveform Dead Time.
Power combing drags large-power lamp, and dilatation is flexible, reliable, but, require that self-oscillation chip oscillate voltage-phase is consistent, unbalanced to eliminate non-linear intermodulation power, obtain stable power output.For this reason, introduce injection phase-locking and solve power combing Phase synchronization technology.Injection phase-locking need not voltage-controlled tuning, phase discriminator, loop filter, and circuit structure is simple, and superior performance, fringe cost is low.Injection phase-locking there is not difference with looped phase locking in essence, and be suitable for power combing large-power lamp stable oscillation stationary vibration frequency plot synchronous, stable power output avoids the too high power imbalances of device temperature rise, and steady light increases the service life.
Benchmark crystal oscillator quartz resonator quality factor are high, and frequency is minimum by variations in temperature, and highly stable to make benchmark accurate.Reference signal is injected self-oscillation chip EXO through frequency division and is held locking phase.Do not inject reference signal self-oscillation chip RC oscillator and produce free oscillation frequency, inject reference signal RC oscillating voltage and its Vector modulation, by self-oscillation chip additive mixing locking phase, oscillator signal and injection reference signal only have a fixing phase difference.Synchronization bandwidth and injecting power direct ratio, with RC oscillator loaded Q inverse ratio, because reference signal injects the input of RC oscillator, gain is high, and small-power locks.
Based on injecting the integral multiple that reference frequency is locking frequency of oscillation, or frequency of oscillation is the integral multiple of reference frequency, and reference signal frequency division injects the high wen-frequency characteristics quartz resonator of apolegamy upper frequency, is easy to locking tens of to hundreds of kilo hertzs of LC or RC oscillators.Frequency divider IC 2binary system or decade counter frequency division.
Be added coupler TB 1, TB 2respectively by two full-bridge power output superpositions, be added coupler TB 3four full-bridge power output superposition summations are delivered to lamp load, and four full-bridge inverter input voltages, frequency, phase place and load are identical, equalizing resistance R 11, R 12, R 13idle.
Lamp abnormality detection is by lamp current mutual inductance magnet ring inductance L 7induced potential diode VD 7detection, electric capacity C 12, resistance R 18filtering, through SD ' resistance R 4, R 5dividing potential drop, field pipe Q 5trigger self-oscillation chip SD end, as trigger voltage 4.5V ~ V dDduring high level signal, rapid failure of oscillation turns off full-bridge inverter power tube fast, in order to avoid impaired.
Full-wave rectifying circuit two MOS field effect tube Q 6, Q 7parallel diode VD 5, VD 6reduce dead resistance to reduce the wastage, improve rectification efficiency, output voltage ripple is low, LED array lamp stable luminescence.Resistance R 14, R 15, R 16, R 17metal-oxide-semiconductor field effect transistor Q is provided 6, Q 7voltage dividing bias circuit.
Control that sun-generated electric power is under-voltage, battery tension lower than time base chip IC 4555 low level trigger end TL sample 1/3V cCtime, time base chip set, relay J adhesive, contact J-1 connects charge in batteries, and when battery tension is sufficient, overvoltage control voltage samples 2/3V higher than high level trigger end HL cC, time base chip reset, relay releasing contact J-1, cuts off solar cell and charges to storage battery overvoltage.Be reduced to set voltage along with lamp DW illumination consumes electrical energy accumulator voltage, solar cell recovers charging, makes battery tension remain on illumination desirable value, and switch S controls lamp and throws light on.
Blocking diode VD 1unilateal conduction prevents storage battery to solar cell reverse charge, diode VD 2when reverse connection of accumulator conducting short circuit, quick blown fuse F protects storage battery.Electric capacity C 9, C 10decoupling, resistance R 10, electric capacity C 11, voltage stabilizing didoe VD 3base chip power when supplying.Diode VD 4suppress the reverse voltage of relay J adhesive, release generation, protection IC 4impaired.
Embodiment sun-generated electric power 480V, four full-bridge inverting electric current 2.5A, drive load RL power capacity 1000W LED array lamp, efficiency 83%, inverter current is little, and device power consumption temperature is low, and light is stablized, long service life.Be applicable to sun-generated electric power power large-power light-emitting diodes LED array lamp illumination occasion.

Claims (2)

1. a sun-generated electric power four full-bridge note lock LED array lamp, comprise LED array lamp, it is characterized in that: also comprise sun-generated electric power, self-oscillation chip A, self-oscillation chip B, self-oscillation chip C, self-oscillation chip D, full-bridge inverter A ', full-bridge inverter B ', full-bridge inverter C ', full-bridge inverter D ' that benchmark crystal oscillator, frequency divider, four models are UBA2030T, be added coupler TB 1, be added coupler TB 2, be added coupler TB 3, tube circuit, abnormal condition of lamp tube current detector, wherein, benchmark crystal oscillator is by quartz-crystal resonator, six inverters and resistance, electric capacity forms, an inverter constrained input two ends cross-over connection biasing resistor, and connect ground capacity respectively, simultaneously, the quartz-crystal resonator of cross-over connection series connection trimmer, another inverter shaping Buffer output benchmark crystal oscillation signal, through frequency divider tap four inverters, self-oscillation chip includes oscillator, full-bridge inverting drive circuit, lamp failure closing controller SD, the output of self-oscillation chip connects by four high-power MOS field effect transistor two groups complementary half-bridge formation full-bridge inverter A ' through full-bridge inverting drive circuit respectively, full-bridge inverter B ', full-bridge inverter C ', full-bridge inverter D ', self-oscillation chip A full-bridge inverter A ' output power transformer T 1with self-oscillation chip B full-bridge inverter B ' output power transformer T 2feed-in is added coupler TB 1, self-oscillation chip C full-bridge inverter C ' output power transformer T 3with self-oscillation chip D full-bridge inverter D ' output power transformer T 4feed-in is added coupler TB 2, be added coupler TB 1with be added coupler TB 2feed-in is added coupler TB 3power combing, connect tube circuit coupling LED array lamp through full-wave rectifying circuit, wherein, full-wave rectifying circuit is by being added coupler TB 3inductance TB 3l 2, two high-power MOS field effect transistor Q 6, Q 7, rectifier diode VD 5, VD 6, resistance R 14, R 15, R 16, R 17, current detecting magnet ring inductance L 7, detector diode VD 7, filter capacitor C 12, resistance R 18composition, two high-power MOS field effect transistor Q 6, Q 7source electrode connects respectively and is added coupler TB 3inductance TB 3l 2two ends, resistance R 14, R 15the mid point of series connection meets high-power MOS field effect transistor Q 6grid, resistance R 14meet high-power MOS field effect transistor Q 7source electrode, resistance R 16, R 17the mid point of series connection meets high-power MOS field effect transistor Q 7grid, resistance R 16meet high-power MOS field effect transistor Q 6source electrode, two high-power MOS field effect transistor Q 6, Q 7source electrode, drain rectifier diode VD in parallel 5, VD 6, two high-power MOS field effect transistor Q 6, Q 7drain electrode is connected in parallel as full-wave rectification output, resistance R 15, R 17connect full-wave rectification output, be added coupler TB 3inductance TB 3l 2mid point detects magnet ring ground connection through lamp current, magnet ring inductance L 7one terminating diode VD 7anode, magnet ring inductance L 7other end ground connection, resistance R 18and electric capacity C 12be parallel to diode VD 7negative electrode and ground between, diode VD 7negative electrode through resistance R 4, R 5dividing potential drop access field effect transistor Q 5grid, to trigger self-oscillation chip lamp failure closing control end SD, benchmark crystal oscillation signal is through frequency divider and connect four inverters export four the self-oscillation chip EXO end locking phases of injection respectively, abnormal condition of lamp tube current detector signal accesses four self-oscillation chip SD and holds, quick failure of oscillation turns off full-bridge inverter MOS field effect tube, sun-generated electric power low pressure access benchmark crystal oscillator, frequency divider power end, sun-generated electric power high pressure accesses the power end of four self-oscillation chips, four full-bridge inverters.
2. sun-generated electric power four full-bridge note lock LED array lamp according to claim 1, is characterized in that: sun-generated electric power is by photovoltaic battery panel E 1, blocking diode VD 1, anti-reverse diode VD 2, relay J and storage battery E 2, resistance R 10, switch S, time base chip IC 4and overvoltage sample circuit, under-voltage sample circuit composition, photovoltaic battery panel E 1output electrode anode series connection blocking diode VD 1, relay contact J-1 one end, the other end of relay contact J-1 connects storage battery E 2anode, overvoltage sample resistance R 6, under-voltage sample resistance R 8, time base chip IC 4, stabilized voltage power supply filter resistance R 10and be connected to the LED array lamp DW of switch S, cross pressure-controlled sample resistance R 6, adjustable resistance RP 1, resistance R 7successively series connection after and in storage battery E 2with the two ends of quick acting fuse F series circuit, adjustable resistance RP 1base chip IC during access 4high level trigger end TH, under-voltage control sample resistance R 8, adjustable resistance RP 2, resistance R 9storage battery E is parallel to successively after series connection 2with the two ends of quick acting fuse F series circuit, adjustable resistance RP 2base chip IC during access 4low level trigger end TL, time base chip IC 4export contact relay J, storage battery E 2negative terminal seal in ground connection after quick acting fuse F, storage battery E 2anti-reverse diode VD in parallel with the two ends of quick acting fuse F series circuit 2.
CN201310155429.3A 2013-04-15 2013-04-15 Solar energy power source four-full-bridge injection locking LED array lamp Expired - Fee Related CN103327685B (en)

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CN202068651U (en) * 2011-04-03 2011-12-07 张妙娟 Solar power supply four-bridge oscillation power synthesis fluorescent lamp
CN203181311U (en) * 2013-04-15 2013-09-04 阮树成 Solar power supply four-full-bridge injection locking light emitting diode LED array lamp

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