CN105430843B - Anti-collision lamp circuit with LED constant voltage constant current drive and stroboscopic control - Google Patents
Anti-collision lamp circuit with LED constant voltage constant current drive and stroboscopic control Download PDFInfo
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- CN105430843B CN105430843B CN201510876022.9A CN201510876022A CN105430843B CN 105430843 B CN105430843 B CN 105430843B CN 201510876022 A CN201510876022 A CN 201510876022A CN 105430843 B CN105430843 B CN 105430843B
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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
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Abstract
The invention discloses an anti-collision lamp circuit with LED constant voltage and constant current driving and stroboscopic control, which comprises a filter circuit unit, a driving circuit unit, a pulse signal generating circuit unit and a light emitting diode group. The filter circuit unit filters the external input voltage and outputs the filtered external input voltage to the drive circuit unit and the pulse signal generation circuit unit, and the drive circuit unit controls the light emitting diode group to work according to the pulse signal provided by the pulse signal generation circuit unit. The invention has the advantages that: the anti-collision lamp control box is not required to carry out filtering surge protection, voltage stabilization and voltage conversion, then the anti-collision lamp is powered, the 28VDC power supply on the machine can directly supply power, the problem that the original anti-collision lamp cannot work normally when the input voltage is in a wide range (18V-32V) can be effectively solved, and the light intensity of the anti-collision lamp can meet the requirement of the effective light intensity of an aviation red part when the input voltage is in a wide range (18V-32V).
Description
Technical Field
The invention relates to an anti-collision lamp circuit with LED constant voltage and constant current driving and stroboscopic control.
Background
The anti-collision lamp system is arranged on the aircraft and used for providing visual information in a flicker mode with a certain frequency in the flying process and warning the position of the aircraft on the ground or in the air so as not to collide. At present, most of the existing LED anti-collision lamps do not have stroboscopic and LED constant voltage constant current driving circuits, the circuits are simple, namely the LED series-parallel connection and the current limiting resistor are added, the functions are simple, the LED anti-collision lamps cannot be used independently, and a stable pulse voltage is provided for the anti-collision lamps by the anti-collision lamp control box to work. Even if some anti-collision lamps which do not need a control box and can work independently are simple in circuit function, the lamplight intensity can not meet the requirements when the input voltage is in a wide range (18V-32V).
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide an anti-collision lamp circuit with LED constant voltage and constant current driving and stroboscopic control, which can effectively solve the problems that the working voltage of an anti-collision lamp directly powered by 28VDC on a machine is wide and narrow (generally 25 VDC-31 VDC), the brightness of products exceeding the allowable working voltage range is not in accordance with the requirements, and the working voltage range is 18 VDC-32 VDC under emergency conditions.
In order to achieve the purpose, the technical scheme of the invention is as follows: an anti-collision lamp circuit with LED constant voltage constant current drive and stroboscopic control comprises,
a filter circuit unit;
the drive circuit unit is preferably a constant voltage, constant current and high power drive circuit unit, and further has a surge voltage resistance function;
the pulse signal generating circuit unit preferably has a surge protection function; the method comprises the steps of,
a light emitting diode group;
the filtering circuit unit filters the external input voltage and outputs the filtered external input voltage to the driving circuit unit and the pulse signal generating circuit unit, and the driving circuit unit controls the light emitting diode group to work according to the pulse signal provided by the pulse signal generating circuit unit, preferably, the external input voltage is an on-board +28V power supply.
As a preferable scheme of the anti-collision lamp circuit with LED constant voltage constant current driving and stroboscopic control, the filter circuit unit comprises a resistor RA1, capacitors CX 1-CX 2, capacitors CY 1-CY 2 and inductors LA 1-LA 3, wherein a primary low-pass filter circuit is formed by the capacitor CX1, the capacitor CX2 and the inductor LA1, a secondary low-pass filter circuit is formed by the inductor LA2, the inductor LA3, the capacitor CY1 and the capacitor CY2, and external input voltage is processed by the primary low-pass filter circuit and the secondary low-pass filter circuit and then is output to the drive circuit unit and the pulse signal generation circuit unit.
As a preferable scheme of the anti-collision lamp circuit with LED constant voltage constant current driving and stroboscopic control, an input voltage positive end of an external input voltage is respectively connected with a first end of a resistor RA1, a first end of a capacitor CX2 and a first input end of an inductor LA1, an input voltage negative end of the external input voltage is respectively connected with a second end of the resistor RA1, a second end of the capacitor CX2 and a second input end of the inductor LA1, a first output end of the inductor LA1 is connected with a first end of an inductor L3, a second output end of the inductor L2 is connected with a first end of a capacitor CY1, a second end of the inductor L3 is connected with a first end of the capacitor CY2, a second end of the capacitor CY1 and a second end of the capacitor CY2 are connected with a shell body, wherein the second end of the inductor L2 is the output positive end of the filter circuit unit, and the second end of the inductor L3 is the output negative end of the filter circuit unit.
As a preferred scheme of the anti-collision light circuit with LED constant voltage constant current driving and stroboscopic control, the driving circuit unit comprises a power management chip U1, resistors R6-R19, capacitors C5-C10, an inductor L1, diodes D4-D6, a field effect transistor Q1 and a field effect transistor Q2, wherein the cathode of the diode D4 is connected with the first end of the resistor R19, the second end of the resistor R19 is connected with the first end of the capacitor C5, the first end of the resistor R6, the first end of the resistor R8, the first end of the inductor L1 and the VIN end of the power management chip U1, the second end of the resistor R6 is respectively connected with the first end of the resistor R7 and the SHDN/UVLO end of the power management chip U1, the second end of the resistor R8 is respectively connected with the first end of the resistor R9 and the CTRL end of the power management chip U1, the second end of the inductor L1 is respectively connected with the anode of the diode D6 and the drain electrode of the field effect transistor Q1, the negative pole of the diode D6 is respectively connected with the first end of a resistor R16, the first end of a resistor R17, the ISP end of a power management chip U1, the first end of a resistor R14 and the first end of a capacitor C6, the second end of the resistor R14 is respectively connected with the FB end of the power management chip U1 and the first end of a resistor R15, the ISN end of the power management chip U1 is connected with the second end of the resistor R17 and the second end of the resistor R16, the GATE end of the power management chip U1 is connected with the grid electrode of a field effect transistor Q1, the SENSE end of the power management chip U1 is respectively connected with the source electrode of the field effect transistor Q1 and the first end of a resistor R18, the PWMOU end of the power management chip U1 is connected with the grid electrode of a field effect transistor Q2, the INTMC end of the power management chip U1 is respectively connected with the first end of a capacitor C9, the first end of a capacitor C10 and the first end of a resistor R10, the VC end of the power management chip U1 is connected with the first end of a resistor R13, the second end of a capacitor C8 is connected with the first end of a resistor R12, the power management chip U1 is connected with the source end of a resistor R12, the SS end of the power management chip U1 is respectively connected to the positive electrode of the diode D5 and the first end of the capacitor C7, the second end of the capacitor C7 is connected to the first end of the resistor R11, the open led end of the power management chip U1 is respectively connected to the negative electrode of the diode D5 and the second end of the resistor R10, the second end of the resistor R7, the second end of the capacitor C5, the second end of the capacitor C6, the second end of the resistor R15, the second end of the resistor R9, the second end of the resistor R18, the source of the field effect transistor Q2, the second end of the resistor R11, the second end of the resistor R12, the second end of the capacitor C8, the second end of the capacitor C9, the second end of the capacitor C10 and the GND end of the power management chip U1 are all grounded, the positive electrode of the diode D4 is the input positive end of the driving circuit unit, the ISN end of the driving circuit unit is the output positive end of the driving circuit unit, the drain of the field effect transistor Q2 is the output negative end of the driving circuit unit, and the constant current control chip 3756 is preferably used.
As a preferable mode of the anti-collision lamp circuit with LED constant voltage constant current driving and stroboscopic control, the pulse signal generating circuit unit comprises time-base circuit chips N1, resistors R1-R5, capacitors C1-C4, transient suppressing tubes TVS1, diodes D1-D3, Z1 and Z2, wherein the negative electrode of the diode D1 is connected with the first end of the resistor R1, the second end of the resistor R1 is respectively connected with the first end of the resistor R2 and the negative electrode of the transient suppressing tube TVS1, the second end of the resistor R2 is respectively connected with the negative electrode of the diode Z1, the first end of the resistor R3, the first end of the capacitor C1, the VCC end and RES end of the time-base circuit chip N1, the second end of the resistor R3 is respectively connected with the positive electrode of the diode D2, the first end of the resistor R4 and the DIS end of the time-base circuit chip N1, the second end of the resistor R4 is connected with the cathode of the diode D3, the first end of the capacitor C3 is respectively connected with the negative end of the diode D2, the positive end of the diode D3, the THR end and the TRI end of the time-base circuit chip N1, the CV end of the time-base circuit chip N1 is connected with the first end of the capacitor C4, the OUT end of the time-base circuit chip N1 is connected with the first end of the resistor R5, the positive end of the diode Z2, the second end of the capacitor C1, the second end of the capacitor C3, the second end of the capacitor C4 and the GND end of the time-base circuit chip N1 are grounded, the positive electrode of the diode D1 is the input positive end of the pulse signal generating circuit, the second end of the resistor R5 is the pulse signal output end, and preferably, the time-base circuit chip N1 adopts SE555.
As a preferred scheme of the anti-collision lamp circuit with LED constant voltage and constant current driving and stroboscopic control, the light-emitting diode group comprises three paths of light-emitting diode series circuits, and each path 26 comprises only light-emitting diodes.
Compared with the prior art, the invention has the advantages that: after the anti-collision lamp uses the circuit, the anti-collision lamp is not required to be supplied with power after filtering surge protection, voltage stabilization and voltage conversion by an additional anti-collision lamp control box, the 28VDC power supply on the machine can directly supply power to the anti-collision lamp, the problem that the original anti-collision lamp cannot work normally when the input voltage is in a wide range (18V-32V) can be effectively solved, and the light intensity of the anti-collision lamp can meet the requirement of the aviation red part in the table 5 of GJB2020-1994 when the input voltage is in a wide range (18V-32V).
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic circuit diagram of the filtering circuit unit in fig. 1.
Fig. 3 is a schematic circuit diagram of the driving circuit unit in fig. 1.
Fig. 4 is a schematic diagram of a structure of the pulse signal generating circuit unit in fig. 1.
Fig. 5 is a schematic structural diagram of the led group in fig. 1.
Detailed Description
The invention will be described in further detail below with reference to the drawings by means of specific embodiments.
Referring to fig. 1, a filter circuit 1 shown in the figure is connected with a constant voltage and constant current high power light emitting diode driving circuit 2 with surge voltage resistance, and the other circuit is connected with a pulse signal generating circuit 3 with surge protection; the constant-voltage constant-current high-power light emitting diode driving circuit 2 resistant to surge voltage is connected with the pulse signal generating circuit 3 with surge protection and the light emitting diode group circuit 4.
The whole circuit forms an internal circuit of the anti-collision lamp which is not driven by a control box.
After the circuit is used, when the input voltage is in a wide range of 18V-32V, the light intensity of the anti-collision light can meet the requirements of the effective light intensity of the aviation red part in the table 5 of GJB2020-1994, namely the following table requirements.
As shown in fig. 2, a filter circuit of the present invention.
The filter circuit comprises a resistor RA1, capacitors CX1, CX2, CY1, CY2, and inductors LA1, LA2 and LA3. The resistor RA1 is a discharging resistor of a differential mode capacitor on the filter circuit, the differential mode capacitors CX1 and CX2 and the common mode inductor LA1 form a first-stage filter circuit, the differential mode inductors LA2 and LA3 and the common mode capacitors CY1 and CY2 form a second-stage filter circuit, and the second-stage filter circuits jointly form a low-pass filter. And calculating corresponding low-pass filtering frequency turning points according to the frequencies of the common mode signal and the differential mode signal to be filtered in the subsequent circuit, and then selecting corresponding inductance and capacitance values. The power input voltage is filtered by the filter circuit to set interference signals and then is input to the subsequent driving circuit and signal generating circuit. The interference signals generated by the subsequent driving circuit and the signal generating circuit during operation are filtered by the filter circuit, and are not fed back to the power supply. The resistor RA1 discharges the voltage on the capacitors CX1 and CX2, so that the voltage on the capacitor is discharged as soon as possible when the product does not work.
As shown in fig. 3, the surge voltage resistant constant voltage constant current high power light emitting diode driving circuit (hereinafter simply referred to as driving circuit) of the present invention.
The driving circuit comprises a power management chip U1, resistors R6-R19, capacitors C5-C10, an inductor L1, diodes D4-D6 and field effect transistors Q1 and Q2. The power management chip U1 in the driving circuit is an LED constant current and constant voltage control chip LT3756 of the Linear company; the power supply range of the chip is wide from 6V to 100V, so that the chip can resist surge voltage of 80V and 50ms in GJB 181-1986 without additionally adding an anti-surge circuit, thereby reducing the number of devices and the size of a printed board of a product; the working frequency can reach 1M, and the energy storage inductor and other power devices with smaller sizes can be correspondingly selected when the high-frequency working voltage is selected, namelyThe size of the printed board of the product is reduced. The upper energy circuit consists of a chip LT3756 and a peripheral circuit thereof; constant voltage of output voltage and constant current of output current can be set, double protection of overvoltage and overcurrent is realized on the LEDs, and a plurality of switching power supply topology modes Boost, buck, buck-Boost, SPEIC, flyback can be constructed; in order to reduce the use of devices, a circuit can be placed in a smaller space inside an anti-collision lamp, and a power management chip U1 is selected in the driving circuit of the patent to form a Boost switching power supply topology mode with the least use of devices. R6 (1 MΩ) and R7 (86.6 kΩ) in the driving circuit are provided with chip supply voltage starting operation and undervoltage shutdown protection points, according to formula V IN,FALLING =1.24× (r6+r7)/R7, 15.6V is calculated as the starting operating point of the chip input voltage, ensuring that the product can start operating normally at an input voltage of 18V; the driving circuit is provided with a chip output constant current point by parallel connection of R16 (0.33Ω) and R17 (0.33Ω) according to the formula I LED =0.1/(resistance after parallel connection of R16 and R17), 0.61A is calculated as the power supply current (constant current) of the chip to the LED; r14 (1 MΩ) and R15 (23.2 kΩ) in the driving circuit set the chip output constant voltage point according to formula V OUT =1.25× (r14+r15)/R15, and 55.1V is calculated as the supply voltage set point (constant voltage point) of the chip to the LED. The R12 (10 kΩ) in the driving circuit is provided with a chip working frequency of 1MHz, and the high-frequency working can reduce the energy storage inductance, and can select smaller power inductance. According to the formula Rsense less than or equal to (V) IN ×0.07)/(V LED ×I LED ) The value of R18 is set, optionally 0.025 Ω; the voltage and the current select corresponding values and models when peripheral devices of the chip U1 work under a more limited state. The driving circuit outputs the set voltage and current to the LED group circuit, so that the LED works according to the set current and voltage to emit light.
As shown in fig. 4, the pulse signal generating circuit with surge protection of the present invention (hereinafter referred to as signal generating circuit) is shown.
The signal generating circuit comprises a time base circuit N1, resistors R1-R5, capacitors C1-C4, a transient suppression tube TVS1 and diodes D1-D3, Z1 and Z2. R1 and TVS1 in the signal generating circuit form a surge protection circuit, and a current-limiting dropping resistor R2 and voltage stabilizing diodes Z1 and Z2 form VCC working voltage (set at 12 VDC) of a subsequent circuit; in the signal generating circuit, N1 is an SE555 time base circuit, R3, D2 and C3 form a charging circuit, R3 and C3 set charging time, C3, D3 and R4 form a discharging circuit, R4 and C3 set discharging time, C1 and C2 are filter bypass capacitors, R5 is a signal output current limiting resistor, the generated signal is output to 8 pins of a chip U1 in the driving circuit, the chip works according to the signal set in the signal generating circuit, and the LED group circuit also shines along with the pulse width time and frequency of pulse voltage set in the signal generating circuit even though an anti-collision lamp shines.
As shown in fig. 5, the light emitting diode group circuit of the present invention is shown.
The LED group circuit comprises a 3-path LED serial circuit, wherein one path consists of 26 LEDs which are connected in series, and the total number of the LEDs is 78. The anti-collision lamp has the light intensity requirement of 180 DEG of horizontal light emission and 20 DEG of vertical light emission, so that the anti-collision lamp has a special structure, a series circuit is required to be selected when the anti-collision lamp is installed to meet the special structure, a round light emitting disc is formed, 26 light emitting diodes are arranged on the side surface of the light emitting disc, and 3 light emitting discs are required to be overlapped and installed to meet the light intensity and redundancy requirements, so that 78 light emitting diodes are required.
The foregoing has outlined rather broadly the more detailed description of the invention in order that the detailed description thereof herein may be better understood, and in order that the present invention may be better understood. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (4)
1. An anti-collision lamp circuit with LED constant voltage constant current drive and stroboscopic control is characterized by comprising,
a filter circuit unit;
the driving circuit unit is constant-voltage, constant-current and high-power and has a surge voltage resistance function;
the pulse signal generating circuit unit has a surge protection function; the method comprises the steps of,
a light emitting diode group;
the filter circuit unit filters and outputs the external input voltage to the drive circuit unit and the pulse signal generation circuit unit, and the drive circuit unit controls the light emitting diode group to work according to the pulse signal provided by the pulse signal generation circuit unit, wherein the external input voltage is an onboard +28V power supply;
the driving circuit unit comprises a power management chip U1, resistors R6-R19, capacitors C5-C10, an inductor L1, diodes D4-D6, a field effect transistor Q1 and a field effect transistor Q2, wherein the cathode of the diode D4 is connected with the first end of the resistor R19, the second end of the resistor R19 is connected with the first end of the capacitor C5, the first end of the resistor R6, the first end of the resistor R8, the first end of the inductor L1 and the VIN end of the power management chip U1, the second end of the resistor R6 is connected with the first end of the resistor R7 and the SHDN/UVLO end of the power management chip U1 respectively, the second end of the resistor R8 is connected with the first end of the resistor R9 and the CTRL end of the power management chip U1 respectively, the second end of the inductor L1 is connected with the anode of the diode D6 and the drain electrode of the field effect transistor Q1 respectively, the cathode of the diode D6 is connected with the first end of the resistor R16, the first end of the resistor R17, the first end of the power management chip U1 and the first end of the resistor R14 and the first end of the capacitor C6 respectively, the second end of the resistor R14 is respectively connected with the FB end of the power management chip U1 and the first end of the resistor R15, the ISN end of the power management chip U1 is connected with the second end of the resistor R17 and the second end of the resistor R16, the GATE end of the power management chip U1 is connected with the grid electrode of the field effect tube Q1 and the first end of the resistor R18, the SENSE end of the power management chip U1 is respectively connected with the source electrode of the field effect tube Q1 and the first end of the resistor R18, the PWMOUT end of the power management chip U1 is connected with the grid electrode of the field effect tube Q2, the INTMC end of the power management chip U1 is respectively connected with the first end of the capacitor C9, the first end of the capacitor C10 and the first end of the resistor R10, the VC end of the power management chip U1 is connected with the first end of the resistor R13, the second end of the capacitor C8 is connected with the first end of the resistor R12 of the power management chip U1, the SS end of the power management chip U1 is respectively connected with the positive electrode of the diode D5 and the first end of the capacitor C7, the first end of the capacitor C7 is connected with the first end of the resistor R11, the OPENLED end of the power management chip U1 is respectively connected with the cathode of the diode D5 and the second end of the resistor R10, the second end of the resistor R7, the second end of the capacitor C5, the second end of the capacitor C6, the second end of the resistor R15, the second end of the resistor R9, the second end of the resistor R18, the source electrode of the field effect transistor Q2, the second end of the resistor R11, the second end of the resistor R12, the second end of the capacitor C8, the second end of the capacitor C9, the second end of the capacitor C10 and the GND end of the power management chip U1 are grounded, the anode of the diode D4 is an input positive end of the driving circuit unit, the ISN end of the power management chip U1 is an output positive end of the driving circuit unit, the drain electrode of the field effect transistor Q2 is an output negative end of the driving circuit unit, and the power management chip U1 adopts a constant current constant voltage control chip LT3756;
the pulse signal generating circuit unit comprises a time base circuit chip N1, resistors R1-R5, capacitors C1-C4, a transient suppression tube TVS1, diodes D1-D3, Z1 and Z2, wherein the cathode of the diode D1 is connected with the first end of the resistor R1, the second end of the resistor R1 is respectively connected with the first end of the resistor R2 and the cathode of the transient suppression tube TVS1, the second end of the resistor R2 is respectively connected with the cathode of the diode Z1, the first end of the resistor R3, the first end of the capacitor C1, the first end of the capacitor C2, the VCC end of the time base circuit chip N1 and the RES end, the second end of the resistor R3 is respectively connected with the anode of the diode D2, the first end of the resistor R4 is connected with the DIS end of the base circuit chip N1 in time, the second end of the resistor R4 is respectively connected with the cathode of the diode D3, the first end of the capacitor C3 is respectively connected with the negative end of the diode D2, the positive end of the time base circuit chip N1, the time base circuit chip N1 and the second end of the capacitor C1 is connected with the positive end of the capacitor C1, and the positive end of the capacitor C2 is connected with the capacitor C1 is connected with the second end of the capacitor C1, and the positive end of the capacitor C2 is connected with the positive end of the capacitor C1 is connected with the capacitor C1.
2. The anti-collision light circuit with the LED constant voltage constant current driving and the stroboscopic control according to claim 1, wherein the filter circuit unit comprises a resistor RA1, capacitors CX 1-CX 2, capacitors CY 1-CY 2 and inductors LA 1-LA 3, wherein a primary low-pass filter circuit is formed by the capacitor CX1, the capacitor CX2 and the inductor LA1, a secondary low-pass filter circuit is formed by the inductor LA2, the inductor LA3, the capacitor CY1 and the capacitor CY2, and external input voltage is output to the driving circuit unit and the pulse signal generating circuit unit after being processed by the primary low-pass filter circuit and the secondary low-pass filter circuit.
3. The anti-collision light circuit with LED constant voltage constant current driving and stroboscopic control according to claim 2, wherein an input voltage positive end of an external input voltage is respectively connected with a first end of a resistor RA1, a first end of a capacitor CX2 and a first input end of an inductor LA1, an input voltage negative end of the external input voltage is respectively connected with a second end of the resistor RA1, a second end of the capacitor CX2 and a second input end of the inductor LA1, a first output end of the inductor LA1 is connected with a first end of an inductor L2, a second output end of the inductor L2 is connected with a first end of the capacitor CY1, a second end of the inductor L3 is connected with a first end of the capacitor CY2, a second end of the capacitor CY1 and a second end of the capacitor CY2 are all connected with a shell.
4. The anti-collision light circuit with constant voltage and constant current driving and stroboscopic control of LED of claim 1, wherein the group of light emitting diodes comprises a three-way series circuit of light emitting diodes, with 26 light emitting diodes each.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510876022.9A CN105430843B (en) | 2015-12-02 | 2015-12-02 | Anti-collision lamp circuit with LED constant voltage constant current drive and stroboscopic control |
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| CN201510876022.9A CN105430843B (en) | 2015-12-02 | 2015-12-02 | Anti-collision lamp circuit with LED constant voltage constant current drive and stroboscopic control |
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| CN105430843B true CN105430843B (en) | 2023-08-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102612223A (en) * | 2012-03-02 | 2012-07-25 | 苏州浩森电子科技有限公司 | LED driving device and control method thereof |
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| CN101022690A (en) * | 2006-02-13 | 2007-08-22 | 史俊生 | Electronic ballast |
| WO2010054523A1 (en) * | 2008-11-13 | 2010-05-20 | Shen Jinxiang | Combination of a drive power supply of high-power led lamp and matched lamps |
| CN102458012A (en) * | 2010-10-26 | 2012-05-16 | 海洋王照明科技股份有限公司 | LED stepless light-adjusting driving circuit and LED lamp |
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