CN203181329U - Double-full-bridge injection-locking power synthesis halogen lamp group - Google Patents

Double-full-bridge injection-locking power synthesis halogen lamp group Download PDF

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Publication number
CN203181329U
CN203181329U CN2013202275423U CN201320227542U CN203181329U CN 203181329 U CN203181329 U CN 203181329U CN 2013202275423 U CN2013202275423 U CN 2013202275423U CN 201320227542 U CN201320227542 U CN 201320227542U CN 203181329 U CN203181329 U CN 203181329U
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power
full
self
oscillation
bridge
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CN2013202275423U
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阮树成
梅玉刚
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    • 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

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Abstract

The utility model relates to the electric light source illumination technical field and specifically discloses a double-full-bridge injection-locking power synthesis halogen lamp group. Two RC oscillators are together connected to a resistor R11 and a capacitor C14 for synchronous oscillation. A self-sustained oscillation chip 4 and full-bridge inverter A output power transformer T1, and a self-sustained oscillation chip 6 and full-bridge inverter B output power transformer T2 are fed into an addition coupler in a reverse-phase way for power synthesis. The synthesized power matches a halogen lamp tube group. Signals of a reference crystal oscillator are injected into the RC oscillators of the two self-sustained oscillation chips 4, 6 through a frequency divider for phase locking. Large-power illumination is achieved. An excessive temperature rise of devices is prevented. Imbalanced oscillation frequency change power is prevented. Light rays are further prevented from deteriorating. Signals of a lamp tube abnormal current detector are accessed to the SD ends of the two self-sustained oscillation chips through a triode. Oscillation is controlled to rapidly stop. Full-bridge inverter power MOS field effect transistors are further turned off. The halogen lamp group is suitably used for commercial decoration large-power halogen lamp illumination.

Description

The bridge injection phase-locking power of enjoying a double blessing synthesizes the Halogen lamp LED group
Technical field
The utility model relates to the electric source lighting technical field, specifically is the synthetic Halogen lamp LED group of a kind of bridge injection phase-locking power of enjoying a double blessing.
Background technology
Prior art usually with LC or RC oscillator as the Halogen lamp LED electric light source, it is stable inadequately that the frequency of oscillation of generation is subjected to the temperature change stability difference to influence power, causes light intensity to descend, though simple in structure, with low cost.Certainly will increase device current but obtain high-power illumination, cause the too high frequency of oscillation that causes of hunting power pipe power consumption sharp increase temperature rise to change, the result can make light unbalance with the frequency change power magnitude.Simultaneously, big electric current descends by the high magnetic permeability of coil temperature rise, the little impedance trend zero of saturation inductors quantitative change, 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 descends, and is heavy then burn out device reduction of service life.Drag high-power lamp by the stack of two vibration inverter powers, solve the restriction of device power capacity.But the synthetic oscillating voltage phase place of power should be consistent, and is unbalanced to overcome non-linear intermodulation power.
Summary of the invention
The purpose of this utility model provides the inversion high frequency stabilization Phase synchronization of vibrating, the synthetic Halogen lamp LED group of a kind of bridge injection phase-locking power of enjoying a double blessing of high-power irradiation.
The utility model technical solution is: comprise power-supply filter EMI, the rectifier bridge heap, power factor correction APFC, the halogen lamp tube group, the benchmark crystal oscillator, frequency divider, two self-oscillation chips, full-bridge inverter A, full-bridge inverter B, the addition coupler, the abnormal condition of lamp tube current detector, wherein, the benchmark crystal oscillator is by quartz-crystal resonator, two inverters and resistance, electric capacity is formed, first inverter input and output two ends cross-over connection biasing resistor, and respectively and connect ground capacity, simultaneously, the quartz-crystal resonator of cross-over connection series connection trimmer also, benchmark crystal oscillator output signal inserts frequency divider through second inverter, the self-oscillation chip includes oscillator, the full-bridge inverting drive circuit, two self-oscillation chip oscillators are total to connecting resistance R 11, capacitor C 14Synchronized oscillation, output connect full-bridge inverter A, the full-bridge inverter B that constitutes by two groups of complementary half-bridges of four high-power MOS field effect transistor, self-oscillation chip and full-bridge inverter A output power transformer T through the full-bridge inverting drive circuit respectively 2With self-oscillation chip and full-bridge inverter B output power transformer T 3The synthetic coupling of anti-phase feed-in addition coupler power halogen lamp tube group, benchmark crystal oscillator signal injects two self-oscillation chip EXO end locking phases through frequency divider, abnormal condition of lamp tube current detector signal inserts two self-oscillation chip SD ends through triode, the quick failure of oscillation of control vibration turn-offs the full-bridge inverter MOS field effect tube, and electric network source inserts the power end of benchmark crystal oscillator, frequency divider, self-oscillation chip and full-bridge inverter A and self-oscillation chip and full-bridge inverter B through power-supply filter EMI, rectifier bridge heap, power factor correction APFC output voltage;
Wherein, the abnormal condition of lamp tube current detector is by halogen lamp tube group one termination addition coupler T 4Inductance L 11, the other end passes lamp current and detects mutual inductance magnet ring ground connection, inductance L 12Meet diode VD 13Detection, capacitor C 19, resistance R 15Filtering is through resistance R 13, R 14Dividing potential drop, triode trigger two self-oscillation chip lamp failure protection control end SD;
Power factor correction APFC is by chip IC 4, MOS field effect tube Q 5, booster diode VD 12, magnetic transformer T 1Reach resistance, electric capacity composition, the output of rectifier bridge heap is through T 1Inductance L 3Meet Q 5Drain electrode, booster diode VD 12To capacitor C 11As APFC output, diode VD 11For C 11Precharge, resistance R 4Connect the output of rectifier bridge heap and introduce the chip power end, and and T 1Inductance L 4Through diode VD 5Detecting circuit is opened resistance R for the chip controls thresholding 2, R 3Connect the sampling of rectifier bridge heap output dividing potential drop and insert chip multiplier one end, multiplier other end connecting resistance R 8, R 9Dividing potential drop sampling output voltage, multiplier output and Q 5The source ground point of resistance connects the peak current detection comparator, and chip output meets Q 5Grid, T 1Inductance L 5Voltage is by diode VD 6～9Rectification, diode VD 10Voltage stabilizing, capacitor C 12Filtering connects benchmark crystal oscillator, frequency divider power end.
The utility model produces good effect: it is synthetic to solve vibrate high frequency stabilization, Phase synchronization power of the bridge inversion of enjoying a double blessing, reach the high-power Halogen lamp LED group illumination that single self-oscillation full-bridge inverter is difficult to obtain, avoid device temperature rise frequency of oscillation to change power imbalances, steady light increases the service life.
Description of drawings
Fig. 1 technical solutions of the utility model theory diagram
Fig. 2 benchmark crystal oscillating circuit
Fig. 3 synthetic Halogen lamp LED group circuit of bridge injection phase-locking power of enjoying a double blessing
Embodiment
(Fig. 3 is example with self-oscillation chip and full-bridge inverter A circuit with reference to Fig. 1,2,3, self-oscillation chip and full-bridge inverter B are identical), the utility model embodiment and embodiment: comprise power-supply filter EMI and rectifier bridge heap 11, power factor correction APFC1, halogen lamp tube group 9, benchmark crystal oscillator 2, frequency divider 3, two self-oscillation chips 4,6, full-bridge inverter A5, full-bridge inverter B7, addition coupler 8, abnormal condition of lamp tube current detector 10, wherein, benchmark crystal oscillator 2 is by quartz-crystal resonator JT, two inverter ics 1, IC 2And resistance R 1, capacitor C 0, C 1, C 2Form first inverter ic 1Input and output two ends cross-over connection biasing resistor R 1, and respectively and meet ground capacity C 1, C 2, simultaneously, go back cross-over connection series connection trimming capacitor C 0Quartz-crystal resonator JT, benchmark crystal oscillator 2 output signals are through second inverter ic 2 Insert frequency divider 3, the self-oscillation chip IC 5UBA2030T includes oscillator, full-bridge inverting drive circuit, and two self-oscillation chips 4,6 oscillators are total to connecting resistance R 11, capacitor C 14Synchronized oscillation, output connects by four high-power MOS field effect transistor Q through the full-bridge inverting drive circuit respectively 1, Q 2, Q 3, Q 4Two groups of synthetic full-bridge inverter A5, full-bridge inverter B7 of complementary half-bridge, self-oscillation chip 4 and full-bridge inverter A5 output power transformer T 2With self-oscillation chip 6 and full-bridge inverter B7 output power transformer T 3The synthetic coupling of anti-phase feed-in addition coupler 8 power halogen lamp tube group 9, benchmark crystal oscillator 2 signals are through frequency divider 3 frequency division ÷ N reference signal f 0Inject two self-oscillation chips 4,6 EXO end locking phase, abnormal condition of lamp tube current detector 10 signals insert two self-oscillation chips 4,6 SD end through triode, the quick failure of oscillation of control vibration turn-offs the full-bridge inverter MOS field effect tube, and electric network source inserts the power end of benchmark crystal oscillator 2, frequency divider 3, self-oscillation chip 4 and full-bridge inverter A5, self-oscillation chip 6 and full-bridge inverter B7 through power-supply filter EMI and rectifier bridge heap 11, power factor correction APFC1 output voltage.
IC 4Pin mark function: V CCChip logic control low-tension supply, IDET zero current detection, the input of MULT multiplier, the input of INV error amplifier, the output of EA error amplifier, CS pulse-width modulation comparator, the output of OUT driver, GND ground connection.
IC 5Pin mark function: HV high voltage source, V DDLow-tension supply, the input of RC oscillator, the external oscillator of EXO, GHL drives Q 1, GLL drives Q 2, GHR drives Q 3, GLR drives Q 4, SHL bridge circuit output, the output of SHR bridge circuit, the BE bridge circuit enables control, and the BER bridge circuit enables reference, the control of DTC Dead Time, the FSL power supply of floating, the FSR power supply of floating, SD closes vibration, GND ground connection.
The self-oscillation chip IC 5Power end HV connects high voltage source, generates low-tension supply V by chip internal DDSupply with and produce vibration, capacitor C 13The filtering ripple, vibration starts bootstrap capacitor C 15The charging power supply of floating, full-bridge inverter diagonal power MOS pipe Q 1, Q 4Conducting, Q 2, Q 3End, at this moment capacitor C 16The charging power supply of floating, Q 1, Q 4Conducting, Q 2, Q 3End the half period that takes turns to operate, output voltage waveforms square wave.Full-bridge alternately switches 1/2 FREQUENCY CONTROL by RC oscillator frequency of oscillation, resistance R 10Control waveform Dead Time.
Two inverter powers are synthetic to drag large-power lamp, and dilatation is reliable.But require two self-oscillation chip oscillate voltages to drive inverter phase place unanimity, unbalanced to eliminate non-linear intermodulation power, obtain stable power output.For this reason, introduce injection phase-locking and solve power synthesis phase simultaneous techniques.
Injection phase-locking is need not be voltage-controlled tuning, phase discriminator, loop filter, and circuit structure is simple, superior performance, and fringe cost is low.Injection phase-locking there is not difference with looped phase locking in essence, and it is synchronous to be suitable for the synthetic large-power lamp stable oscillation stationary vibration frequency plot of power, and stable power output is avoided the too high power imbalances of device temperature rise, and steady light increases the service life.
Benchmark crystal oscillator quartz resonator frequency is subjected to variations in temperature minimum, and is highly stable.Reference signal is injected self-oscillation chip EXO end locking phase through frequency divider.Do not inject reference signal self-oscillation chip RC oscillator free oscillation frequency, it is synthetic to inject reference signal RC oscillating voltage and its vector, and 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, owing to the input of reference signal injection RC oscillator, gain is high, the small-power locking, two self-oscillation chips are total to connecting resistance R 11And capacitor C 14Synchronized oscillation, locking time is fast.The reference signal frequency division injects the high wen-frequency characteristics quartz resonator of apolegamy upper frequency, locks tens of to hundreds of kilo hertzs of LC or RC oscillator.Frequency divider IC 3Binary system or decade counter frequency division.
Addition coupler T 4Inductance L 10With two full-bridge output power transformer T 2, T 3Inductance L 7, L 9Anti-phase exciting current stack, 180 ° of low-order harmonics of phase difference are cancelled out each other, and the output current conversion doubles summation and delivers to lamp load, and input voltage, frequency, phase place and load are identical, and electric current equates equalizing resistance R 12No power waste.
Lamp abnormality detection mutual inductance magnet ring inductance L 12Induced potential diode VD 13Detection, capacitor C 19, resistance R 15Filtering is through resistance R 13, R 14Dividing potential drop, triode VT 1Trigger two self-oscillation chip SD ends, as trigger voltage 4.5V～V DDDuring high level signal, failure of oscillation turn-offs full-bridge inverter high-power MOS field effect transistor fast rapidly, in order to avoid impaired.
Electric ballast incoming transport power supply is the resistance load, and input voltage and electric current have big phase difference, and power factor is low, chip IC 4L6562, metal-oxide-semiconductor Q 5Deng forming APFC raising power factor, reduce the electric current total harmonic distortion, output voltage is constant, ensures that the oscillation amplitude steady light is constant.The power line filter suppressing humorous wave interference of vibrating is transmitted by electrical network.
Embodiment power supply AC85～260V, power factor correction APFC output dc voltage 560V, power factor 0.98, the bridge inverter current 0.54A that enjoys a double blessing drives 250W halogen lamp tube group G1～Gn, efficient 82%, the inverter current low power consumption is low, and long-time houselights is stable.Be applicable to the trade dress irradiation.

Claims (3)

1. the bridge injection phase-locking power of enjoying a double blessing synthesizes the Halogen lamp LED group, comprise power-supply filter EMI, the rectifier bridge heap, the halogen lamp tube group, it is characterized in that: also comprise power factor correction APFC, the benchmark crystal oscillator, frequency divider, two self-oscillation chips, full-bridge inverter A, full-bridge inverter B, the addition coupler, the abnormal condition of lamp tube current detector, wherein, the benchmark crystal oscillator is by quartz-crystal resonator, two inverters and resistance, electric capacity is formed, first inverter input and output two ends cross-over connection biasing resistor, and respectively and connect ground capacity, simultaneously, the quartz-crystal resonator of cross-over connection series connection trimmer also, benchmark crystal oscillator output signal inserts frequency divider through second inverter, the self-oscillation chip includes oscillator, the full-bridge inverting drive circuit, two self-oscillation chip oscillators are total to connecting resistance R 11, capacitor C 14Synchronized oscillation, output connect full-bridge inverter A, the full-bridge inverter B that constitutes by two groups of complementary half-bridges of four high-power MOS field effect transistor, self-oscillation chip and full-bridge inverter A output power transformer T through the full-bridge inverting drive circuit respectively 2With self-oscillation chip and full-bridge inverter B output power transformer T 3The synthetic coupling of anti-phase feed-in addition coupler power halogen lamp tube group, benchmark crystal oscillator signal injects two self-oscillation chip EXO end locking phases through frequency divider, abnormal condition of lamp tube current detector signal inserts two self-oscillation chip SD ends through triode, the quick failure of oscillation of control vibration turn-offs the full-bridge inverter MOS field effect tube, and electric network source inserts the power end of benchmark crystal oscillator, frequency divider, self-oscillation chip and full-bridge inverter A, self-oscillation chip and full-bridge inverter B through power-supply filter EMI, rectifier bridge heap, power factor correction APFC output voltage.
2. the bridge injection phase-locking power of enjoying a double blessing according to claim 1 synthesizes the Halogen lamp LED group, and it is characterized in that: the abnormal condition of lamp tube current detector is by halogen lamp tube group one termination addition coupler T 4Inductance L 11, the other end passes lamp current and detects mutual inductance magnet ring ground connection, inductance L 12Meet diode VD 13Detection, capacitor C 19, resistance R 15Filtering is through resistance R 13, R 14Dividing potential drop, triode trigger two self-oscillation chip lamp failure protection control end SD.
3. the bridge injection phase-locking power of enjoying a double blessing according to claim 1 synthesizes the Halogen lamp LED group, and it is characterized in that: power factor correction APFC is by chip IC 4, MOS field effect tube Q 5, booster diode VD 12, magnetic transformer T 1Reach resistance, electric capacity composition, the output of rectifier bridge heap is through T 1Inductance L 3Meet Q 5Drain electrode, booster diode VD 12To capacitor C 11As APFC output, diode VD 11For C 11Precharge, resistance R 4Connect the output of rectifier bridge heap and introduce the chip power end, and and T 1Inductance L 4Through diode VD 5Detecting circuit is opened resistance R for the chip controls thresholding 2, R 3Connect the sampling of rectifier bridge heap output dividing potential drop and insert chip multiplier one end, multiplier other end connecting resistance R 8, R 9Dividing potential drop sampling output voltage, multiplier output and Q 5The source ground point of resistance connects the peak current detection comparator, and chip output meets Q 5Grid, T 1Inductance L 5Voltage is by diode VD 6～9Rectification, diode VD 10Voltage stabilizing, capacitor C 12Filtering connects benchmark crystal oscillator, frequency divider power end.
CN2013202275423U 2013-04-15 2013-04-15 Double-full-bridge injection-locking power synthesis halogen lamp group Expired - Fee Related CN203181329U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104105277A (en) * 2013-04-15 2014-10-15 梅玉刚 Double-full-bridge injection phase-locking power synthesis halogen lamp group

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104105277A (en) * 2013-04-15 2014-10-15 梅玉刚 Double-full-bridge injection phase-locking power synthesis halogen lamp group

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Granted publication date: 20130904

Termination date: 20140415