CN203181318U - Double-half-bridge injection-locking light emitting diode LED array lamp - Google Patents
Double-half-bridge injection-locking light emitting diode LED array lamp Download PDFInfo
- Publication number
- CN203181318U CN203181318U CN 201320227505 CN201320227505U CN203181318U CN 203181318 U CN203181318 U CN 203181318U CN 201320227505 CN201320227505 CN 201320227505 CN 201320227505 U CN201320227505 U CN 201320227505U CN 203181318 U CN203181318 U CN 203181318U
- Authority
- CN
- China
- Prior art keywords
- power
- self
- bridge
- led array
- output
- Prior art date
- 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.)
- Expired - Fee Related
Links
- 239000013078 crystal Substances 0.000 claims abstract description 27
- 230000010355 oscillation Effects 0.000 claims abstract description 21
- 239000003990 capacitor Substances 0.000 claims abstract description 20
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 230000005669 field effect Effects 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 7
- 230000002159 abnormal effect Effects 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 238000005070 sampling Methods 0.000 claims description 4
- 230000000295 complement effect Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 230000000087 stabilizing effect Effects 0.000 claims description 2
- 238000005286 illumination Methods 0.000 abstract description 6
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 230000001360 synchronised effect Effects 0.000 abstract description 2
- 238000003786 synthesis reaction Methods 0.000 abstract description 2
- 230000002542 deteriorative effect Effects 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910002056 binary alloy Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
- Dc-Dc Converters (AREA)
Abstract
The utility model relates to the electric light source illumination technical field and specifically discloses a double-half-bridge injection-locking light emitting diode LED array lamp. The light emitting diode LED array lamp comprises a power supply filter EMI, a bridge rectifier, a power factor correction device APFC, a light emitting diode LED array lamp tube, a reference crystal oscillator, a frequency divider, two self-sustained oscillation chips 4, 6, a half-bridge inverter A, a half-bridge inverter B, an addition coupler and a full-wave rectifier. RC oscillators of the two self-sustained oscillation chips 4, 6 are together connected to a resistor R11 and a capacitor C15 for synchronous oscillation. A self-sustained oscillation chip 4 and half-bridge inverter A output power transformer T2 and a self-sustained oscillation chip 6 and half-bridge inverter B output power transformer T3 are fed into the addition coupler in a reverse-phase way for power synthesis. The synthesized power is accessed to the light emitting diode LED array lamp tube through the full-wave rectifier and drives the light emitting diode LED array lamp tube. Signals of the reference crystal oscillator are injected into RC oscillators of the two self-sustained oscillation chips 4, 6 through the frequency divider for phase locking and large-power illumination achieving. An excessive temperature rise of devices is prevented. Imbalanced oscillation frequency change power is also prevented. Light rays are further prevented from deteriorating. The light emitting diode LED array lamp is suitably used in large-power light emitting diode LED array lamp illumination occasions.
Description
Technical field
The utility model relates to the electric source lighting technical field, specifically is a kind of pair of half-bridge injection phase-locking LED array lamp.
Background technology
The prior art electronic transformer is with LC or RC oscillator drives LED array lamp, it is stable inadequately that the frequency of oscillation that produces is subjected to the temperature change stability difference to influence power, causes light intensity to descend, though hand over the electronic transformer of orthogonal AC-DC-AC inversion, features simple structure, cost is low.Obtain high-power illumination and certainly will increase electric current, and the too high frequency of oscillation that causes of hunting power pipe power consumption sharp increase temperature rise changes, 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.
Summary of the invention
The purpose of this utility model provides the inversion high frequency stabilization Phase synchronization of vibrating, two half-bridge injection phase-locking LED array lamps of high-power illumination.
The utility model technical solution is: comprise power-supply filter EMI, the rectifier bridge heap, power factor correction APFC, LED array lamp, the benchmark crystal oscillator, frequency divider, two self-oscillation chips, half-bridge inverter A, half-bridge inverter B, the addition coupler, full-wave rectifier, 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 the RC oscillator, the semi-bridge inversion drive circuit, two self-oscillation chip RC oscillators are total to connecting resistance R
11, capacitor C
15Synchronized oscillation, output connects by Q through the semi-bridge inversion drive circuit respectively
2, Q
3Two complementary half-bridge inverter A, half-bridge inverter B that form of high-power MOS field effect transistor, self-oscillation chip and half-bridge inverter A output power transformer T
2With self-oscillation chip and half-bridge inverter B output power transformer T
3Anti-phase feed-in addition coupler, power is synthetic to be presented full-wave rectifier and lights LED array lamp, and benchmark crystal oscillator signal injects two self-oscillation chip RC oscillator C through frequency divider
TThe end locking phase, abnormal condition of lamp tube current detector signal inserts two self-oscillation chip RC oscillator C through triode
THold quick failure of oscillation, electric network source inserts the power end of benchmark crystal oscillator, frequency divider, self-oscillation chip and half-bridge inverter A, self-oscillation chip and half-bridge inverter B through power-supply filter EMI, rectifier bridge heap, power factor correction APFC output voltage;
Wherein, full-wave rectifying circuit is by two high-power MOS field effect transistor Q
4, Q
5Source electrode meets addition coupler T
4Inductance L
11Two ends, grid connecting resistance bias pressure, source electrode, the rectifier diode in parallel that drains, Q
4, Q
5Drain electrode also connects to recommending full-wave rectification output, inductance L
11Mid point passes lamp current and detects mutual inductance magnet ring ground connection, inductance L
12Meet diode VD
17Detection, capacitor C
20, resistance R
22Filtering meets two self-oscillation chip RC oscillator C
TEnd;
Power factor correction APFC is by chip IC
4, MOS field effect tube Q
1, booster diode VD
11, magnetic transformer T
1Reach resistance, electric capacity composition, the output of rectifier bridge heap is through magnetic transformer T
1Inductance L
3Meet Q
1Drain electrode, booster diode VD
11To capacitor C
11As power factor correction APFC output, resistance R
4Connect the output of rectifier bridge heap and introduce chip IC
4Power end, and with magnetic transformer T
1Inductance L
4Through diode VD
5Detecting circuit is chip IC
4The control thresholding is opened resistance R
2, R
3Connect the sampling of rectifier bridge heap output dividing potential drop and insert chip IC
4Multiplier one end, multiplier other end connecting resistance R
8, R
9Dividing potential drop sampling output voltage, multiplier output and Q
1The source ground point of resistance connects peak current detection comparator, chip IC
4Output meets Q
1Grid, magnetic transformer T
1Inductance L
5High frequency voltage 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 the vibrate high frequency stabilization, Phase synchronization power of two semi-bridge inversions, reach the large-power light-emitting diodes led array lamp illumination that single self-oscillation half-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
The two half-bridge injection phase-locking LED array circuit for lamp of Fig. 3
Embodiment
With reference to Fig. 1,2,3 (Fig. 3 is that example, self-oscillation chip and half-bridge inverter B are identical with self-oscillation chip and half-bridge inverter A circuit), the utility model embodiment and embodiment: power-supply filter EMI and rectifier bridge heap 11, power factor correction APFC1, LED array fluorescent tube 10, benchmark crystal oscillator 2, frequency divider 3, two self- oscillation chips 4,6, half-bridge inverter A5, half-bridge inverter B7, addition coupler 8, full-wave rectifier 9, abnormal condition of lamp tube current detector 12, 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
2Insert frequency divider IC
3, the self-oscillation chip IC
5IR2153 includes RC oscillator, semi-bridge inversion drive circuit, and two self- oscillation chips 4,6 RC oscillator be connecting resistance R altogether
11, capacitor C
15Synchronized oscillation, output connects by two MOS field effect tube Q through the semi-bridge inversion drive circuit respectively
2, Q
3Complementary half-bridge inverter A5, the half-bridge inverter B7 that forms, self-oscillation chip 4 and half-bridge inverter A5 output power transformer T
2With self-oscillation chip 6 and half-bridge inverter B7 output power transformer T
3Anti-phase feed-in addition coupler 8, power is synthetic to insert LED array lamp 10 through full-wave rectifier 9, and benchmark crystal oscillator 2 is through frequency divider 3 frequency division ÷ N reference signal f
0Capacitor C
4, C
5Dividing potential drop is injected two self- oscillation chips 4,6 RC oscillator C
TThe end locking phase, abnormal condition of lamp tube current detector 12 signals are through triode VT
1Insert two self- oscillation chips 4,6 RC oscillator C
TThe quick failure of oscillation of end control vibration, electric network source inserts benchmark crystal oscillator 2, frequency divider 3 through power-supply filter EMI and rectifier bridge heap 11, power factor correction APFC1 output voltage+15V, and+400V inserts the power end of self-oscillation chip 4 and half-bridge inverter A5, self-oscillation chip 6 and half-bridge inverter B7.
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: V
CCChip low-tension supply end, V
BThe driver power supply of floating, HO drives Q
2Grid, LO drives Q
3Grid, V
SThe power supply of floating returns, R
TConnect the vibration timing resistor, C
TConnect the vibration timing capacitor, OCM power signal ground connection.
The self-oscillation chip IC
5By resistance R
10, capacitor C
13Step-down is supplied with to start and is produced vibration, drives half-bridge power metal-oxide-semiconductor Q
2, Q
3, making it conduction and cut-off in turn, inverter mid point output this moment square-wave voltage is through resistance R
14, capacitor C
17, diode VD
12, VD
13Rectification is to capacitor C
13Charging is for the self-oscillation chip IC
5Power supply, conversion back resistance R
10Stop power supply, reduce power consumption.Diode VD
14To capacitor C
16Bootstrapping charging, the power supply of floating drive half-bridge inverter and reduce power consumption.Two inverter powers are synthetic to drag large-power lamp, and dilatation is reliable, but two self-oscillation chip oscillate voltage-phases should be consistent, unbalanced to eliminate non-linear intermodulation power, obtains stable power output.For this reason, introduce injection phase-locking and solve power synthesis phase simultaneous techniques.
Benchmark crystal oscillator quartz resonator frequency is subjected to variations in temperature minimum, and is highly stable.Reference signal is injected self-oscillation chip RC oscillator locking phase place through frequency divider.Do not inject reference signal RC oscillator and produce 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, because reference signal is injected the input of RC oscillator, gain is high, and small-power is lockable, and two self-oscillation chips meet timing resistor R altogether
11, capacitor C
15Synchronized oscillation is fast locking time.The reference signal frequency division injects the high wen-frequency characteristics 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.
Injection phase-locking is need not be voltage-controlled tuning, phase demodulation, loop filtering, the simple superior performance of circuit, and fringe cost is low.Injection phase-locking there is not difference with looped phase locking in essence, and it is synchronous to be fit to the synthetic light fixture stable oscillation stationary vibration frequency plot of power, avoids the too high power imbalances of device temperature rise, and steady light increases the service life.
Addition coupler T
4Inductance L
10With two half-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 two electric currents equate balance resistance R
17No power waste.
Two high-power MOS field effect transistor of full-wave rectifying circuit Q
4, Q
5Parallel diode VD
15, VD
16Reduce dead resistance and reduce the wastage, the rectification efficiency height, output ripple is low, and is luminous stable.
The lamp abnormality detection is by lamp current mutual inductance magnet ring inductance L
12Induced potential diode VD
17Detection, capacitor C
20, resistance R
22Filtering is through resistance R
15, R
16Current limliting, triode VT
1Trigger two self-oscillation chip RC oscillator C
TEnd, the comparator voltage of chip internal is reduced to V
CCBelow/6, failure of oscillation turn-offs the inverter power pipe fast rapidly, avoids damaging.
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, by integrated chip IC
4L6562, power MOS pipe Q
1Deng forming the 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 alternating current AC90～250V, power factor correction APFC exports DC400V, power factor 0.98, two semi-bridge inversion electric current 0.58A light 200W LED array lamp, efficient 86%.
Claims (3)
1. two half-bridge injection phase-locking LED array lamp, comprise power-supply filter EMI, the rectifier bridge heap, LED array lamp, it is characterized in that: also comprise power factor correction APFC, the benchmark crystal oscillator, frequency divider, two self-oscillation chips, half-bridge inverter A, half-bridge inverter B, the addition coupler, full-wave rectifier, 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 the RC oscillator, the semi-bridge inversion drive circuit, two self-oscillation chip RC oscillators are total to connecting resistance R
11, capacitor C
15Synchronized oscillation, output connect by complementary half-bridge inverter A, the half-bridge inverter B that forms of two MOS field effect tubes, self-oscillation chip and half-bridge inverter A output power transformer T through the semi-bridge inversion drive circuit respectively
2With self-oscillation chip and half-bridge inverter B output power transformer T
3Anti-phase feed-in addition coupler, power is synthetic to be presented full-wave rectifier and lights LED array lamp, and benchmark crystal oscillator signal injects two self-oscillation chip RC oscillator C through frequency divider
TThe end locking phase, abnormal condition of lamp tube current detector signal inserts two self-oscillation chip RC oscillator C through triode
THold quick failure of oscillation, electric network source inserts the power end of benchmark crystal oscillator, frequency divider, self-oscillation chip and half-bridge inverter A, self-oscillation chip and half-bridge inverter B respectively through power-supply filter EMI, rectifier bridge heap, power factor correction APFC output voltage.
2. according to claim 1 pair of half-bridge injection phase-locking LED array lamp, it is characterized in that: full-wave rectifying circuit is by two high-power MOS field effect transistor Q
4, Q
5Source electrode meets addition coupler T
4Inductance L
11Two ends, grid connect divider resistance biasing, and source electrode, the rectifier diode in parallel that drains drain and connect to recommending full-wave rectification output, inductance L
11Mid point passes lamp current and detects mutual inductance magnet ring ground connection, inductance L
12Meet diode VD
17Detection, capacitor C
20, resistance R
22Filtering meets two self-oscillation chip RC oscillator C through resistance
TEnd.
3. according to claim 1 pair of half-bridge injection phase-locking LED array lamp, it is characterized in that: power factor correction APFC is by chip IC
4, MOS field effect tube Q
1, booster diode VD
11, magnetic transformer T
1Reach resistance, electric capacity composition, the output of rectifier bridge heap is through magnetic transformer T
1Inductance L
3Meet Q
1Drain electrode, booster diode VD
11To capacitor C
11As power factor correction APFC output, resistance R
4Connect the output of rectifier bridge heap and introduce chip IC
4Power end, and with magnetic transformer T
1Inductance L
4Through diode VD
5Detecting circuit is chip IC
4The control thresholding is opened resistance R
2, R
3Connect the sampling of rectifier bridge heap output dividing potential drop and insert chip IC
4Multiplier one end, multiplier other end connecting resistance R
8, R
9Dividing potential drop sampling output voltage, multiplier output and Q
1The source ground point of resistance connects peak current detection comparator, chip IC
4Output meets Q
1Grid, magnetic transformer T
1Inductance L
5High frequency voltage is by diode VD
6～9Rectification, diode VD
10Voltage stabilizing, capacitor C
12Filtering connects benchmark crystal oscillator, frequency divider power end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320227505 CN203181318U (en) | 2013-04-15 | 2013-04-15 | Double-half-bridge injection-locking light emitting diode LED array lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320227505 CN203181318U (en) | 2013-04-15 | 2013-04-15 | Double-half-bridge injection-locking light emitting diode LED array lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203181318U true CN203181318U (en) | 2013-09-04 |
Family
ID=49077970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320227505 Expired - Fee Related CN203181318U (en) | 2013-04-15 | 2013-04-15 | Double-half-bridge injection-locking light emitting diode LED array lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203181318U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104105254A (en) * | 2013-04-15 | 2014-10-15 | 阮雪芬 | Double-half-bridge injection phase-locking light-emitting diode LED array lamp |
| CN104105254B (en) * | 2013-04-15 | 2016-11-30 | 阮雪芬 | Double half-bridge injection phase-locking LED array lamps |
| CN107333354A (en) * | 2017-07-07 | 2017-11-07 | 厦门普为光电科技有限公司 | LED lamp tube with boost pressure circuit |
| CN109188121A (en) * | 2018-08-14 | 2019-01-11 | 西北工业大学 | Faults in rotating rectifiers detection method under three-level formula starting/generator stationary state |
-
2013
- 2013-04-15 CN CN 201320227505 patent/CN203181318U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104105254A (en) * | 2013-04-15 | 2014-10-15 | 阮雪芬 | Double-half-bridge injection phase-locking light-emitting diode LED array lamp |
| CN104105254B (en) * | 2013-04-15 | 2016-11-30 | 阮雪芬 | Double half-bridge injection phase-locking LED array lamps |
| CN107333354A (en) * | 2017-07-07 | 2017-11-07 | 厦门普为光电科技有限公司 | LED lamp tube with boost pressure circuit |
| CN107333354B (en) * | 2017-07-07 | 2020-07-10 | 厦门普为光电科技有限公司 | L ED lamp tube with voltage boosting circuit |
| CN109188121A (en) * | 2018-08-14 | 2019-01-11 | 西北工业大学 | Faults in rotating rectifiers detection method under three-level formula starting/generator stationary state |
| CN109188121B (en) * | 2018-08-14 | 2020-09-08 | 西北工业大学 | Rotating rectifier fault detection method under static state of three-stage starter/generator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203181318U (en) | Double-half-bridge injection-locking light emitting diode LED array lamp | |
| CN203181350U (en) | Double-half-bridge injection-locking power synthesis electrodeless lamp | |
| CN203181326U (en) | Double-half-bridge injection-locking power synthesis halogen lamp group | |
| CN203181336U (en) | Double-half-bridge injection-locking power synthesis black light lamp group | |
| CN203181351U (en) | Double-half-bridge injection-locking power synthesis neon lamp | |
| CN203206563U (en) | DC low-voltage push-push injection phase-locking power-synthesizing LED array lamp | |
| CN104105278A (en) | Double-half-bridge injection phase-locking power synthesis halogen lamp group | |
| CN203181316U (en) | Direct-current low-voltage power supply injection-locking light emitting diode LED array lamp | |
| CN203181320U (en) | Double-full-bridge injection-locking light emitting diode LED array lamp | |
| CN203181329U (en) | Double-full-bridge injection-locking power synthesis halogen lamp group | |
| CN203206570U (en) | DC low-voltage push-push injection phase-locking power-synthesizing neon lamp | |
| CN104105312B (en) | Dual-half-bridge injection phase-locking power synthesis high-pressure mercury lamp | |
| CN103354692B (en) | Two half-bridge injection phase-locking power combing low-pressure sodium lamp | |
| CN203206572U (en) | Double-full-bridge injection phase-locking power-synthesizing metal halide lamp | |
| CN203181360U (en) | Double-full-bridge injection-locking power synthesis electrodeless lamp group | |
| CN203181379U (en) | Double-full-bridge injection-locking power synthesis low-voltage sodium lamp | |
| CN203181314U (en) | Solar power supply double-push injection-locking light emitting diode LED array lamp | |
| CN203181313U (en) | Solar power supply double-full-bridge injection-locking light emitting diode LED array lamp | |
| CN104105254B (en) | Double half-bridge injection phase-locking LED array lamps | |
| CN203181387U (en) | Double-half-bridge injection-locking power synthesis fluorescent lamp | |
| CN203181391U (en) | Double-full-bridge injection-locking power synthesis fluorescent lamp group | |
| CN104105254A (en) | Double-half-bridge injection phase-locking light-emitting diode LED array lamp | |
| CN104105297B (en) | Dual-half-bridge injection phase-locking power synthesis Non-polarized lamp | |
| CN104105308A (en) | Double-full-bridge injection phase-locking power synthesis high-voltage sodium lamp | |
| CN103338570B (en) | Dual-full-bridge injection phase-locking power synthesis neon lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20140415 |