CN101720162B - Fluorescent lamp illuminance control circuit, fluorescent lamp control system and control method thereof - Google Patents
Fluorescent lamp illuminance control circuit, fluorescent lamp control system and control method thereof Download PDFInfo
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- CN101720162B CN101720162B CN200910188438.6A CN200910188438A CN101720162B CN 101720162 B CN101720162 B CN 101720162B CN 200910188438 A CN200910188438 A CN 200910188438A CN 101720162 B CN101720162 B CN 101720162B
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Abstract
The invention provides a fluorescent lamp illuminance control circuit, a fluorescent lamp control system and a control method thereof, which are applied to the field of fluorescent lamp illumination. The fluorescent lamp illuminance control circuit comprises a control module, a user input interface module, an illuminance sensor and a communication interface module, wherein the user input interface module is used for receiving a first illuminance value inputted by a user as required; the illuminance sensor is used for collecting light signals in real time according to light change in the environment and converting the light signals into light-current digital signals; and the control module is used for generating a second illuminance value which corresponds to the light-current digital signals and outputting illuminance control signals according to a dimming difference value obtained by using the first illuminance value to subtract the second illuminance value so as to control a dimming ballast, adjust the illuminance of a fluorescent lamp, and ensure that the illuminance in the environment is constant. The fluorescent lamp illuminance control circuit is used for outputting illuminance control signals to control the dimming ballast to adjust the illuminance of the fluorescent lamp, ensures that the illuminance in the environment is constant, saves energy and prolongs the service life of the fluorescent lamp.
Description
Technical field
The invention belongs to fluorescent lighting field, particularly relate to a kind of fluorescent lamp illuminance control circuit, fluorescent lamp control system and control method thereof.
Background technology
In existing fluorescent light fittings, user manually inputs dim signal to light modulation chip by rotary knob, the analog signal of 0 ~ 10V is converted to fixing pwm signal and exports to drive circuit by light modulation chip, the high-frequency ac voltage that direct voltage is reverse into needed for fluorescent lamp by drive circuit exports, drive fluorescent lamp, realize lamp tube starting.
If want to change the illumination in environment, user is needed to go to regulate by rotary knob; If want to make environment be in constant illumination, so along with the change of light in environment, need user constantly to go to regulate, the illumination of this manual adjustments light is difficult to keep illumination constant.And when the illumination of light in environment is very strong, can not surround lighting be made full use of, waste energy, can not prolonging lamp tube service life.
Summary of the invention
The object of the present invention is to provide a kind of fluorescent lamp illuminance control circuit, be intended to solve existing fluorescent lamp be difficult to ensure that illumination is constant, waste energy, can not the problem of prolonging lamp tube service life.
The embodiment of the present invention realizes like this, a kind of fluorescent lamp illuminance control circuit, comprise: control module, be connected to user's input interface module of the first control input end of described control module, be connected to the illuminance transducer of the second control input end of described control module, and communication interface module; The input of described communication interface module is connected to the control output end of described control module, and the output of described communication interface module connects the dimming ballast for controlling fluorescent lamp; The first brightness value that described user's input interface module receives outside input is fed through described control module, described illuminance transducer environmentally in the change Real-time Collection light signal of light, and light signal is converted to photoelectric current digital signal, be fed through described control module; Described control module generates second brightness value corresponding with described photoelectric current digital signal, and the light modulation difference of described second brightness value acquisition is deducted according to described first brightness value, output illumination control signal controls the illumination of described dimming ballast to fluorescent lamp and regulates, and makes the illumination in environment constant.
Further, described illuminance transducer is connected with described control module by iic bus.
Further, the output of described communication interface module is connected to the input of described dimming ballast by CAN.
Further, described illuminance transducer comprises: light sensor, and environmentally, the change of light gathers light signal; And AD conversion unit, the light signal that described light sensor gathers is converted to photoelectric current digital signal and exports to described control module.
Further, described light sensor is clear glass or photo resistance.
Another object of the embodiment of the present invention is to provide a kind of fluorescent lamp control system, and it comprises the fluorescent lamp illuminance control circuit, dimming ballast and the fluorescent lamp that connect in turn, and described fluorescent lamp illuminance control circuit is above-mentioned fluorescent lamp illuminance control circuit.
Another object of the embodiment of the present invention is also to provide a kind of control method adopting above-mentioned fluorescent lamp control system, comprises the steps:
Step a: the first brightness value obtaining outside input;
Step b: by the variable signal of light in transducer Real-time Obtaining environment, generates photo-signal;
Step c: according to described photo-signal generation the second brightness value corresponding thereto;
Steps d: described first brightness value is deducted described second brightness value and obtain light modulation difference, export illumination control signal according to described light modulation difference;
Step e: described illumination control signal is sent to dimming ballast, in order to regulate the illumination of fluorescent lamp, makes the illumination in environment constant.
Further, in step e, utilize CAN that described illumination control signal is sent to dimming ballast.
Fluorescent lamp illuminance control circuit provided by the invention gathers the light signal changed in environment by illuminance transducer, the brightness value set with user compares, regulating by exporting the illumination of illumination control signal control dimming ballast to fluorescent lamp after control module process, making the illumination in environment constant; Achieve energy-conservation, extend the useful life of fluorescent lamp tube; Adopt CAN to carry out communications, antijamming capability is strong, long transmission distance simultaneously.
Accompanying drawing explanation
Fig. 1 is the modular structure schematic diagram of the fluorescent lamp control system that the embodiment of the present invention provides;
Fig. 2 is the circuit diagram of control module in the fluorescent lamp illuminance control circuit that provides of the embodiment of the present invention;
Fig. 3 is the circuit diagram of illuminance transducer in the fluorescent lamp illuminance control circuit that provides of the embodiment of the present invention;
Fig. 4 is the circuit diagram of communication interface module in the fluorescent lamp illuminance control circuit that provides of the embodiment of the present invention;
Fig. 5 is the realization flow figure of the control method of the employing fluorescent lamp control system that the embodiment of the present invention provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
During the fluorescent lamp illuminance control circuit that the embodiment of the present invention provides adopts illuminance transducer environmentally, the change of light gathers light signal, and light signal is converted to photoelectric current digital signal, second brightness value corresponding with photoelectric current digital signal is exported by control module, and the first brightness value and the second brightness value are compared judgement, export the illumination of illumination control signal control dimming ballast to fluorescent lamp according to judged result to regulate, make the illumination in environment constant.
Fig. 1 shows the modular structure of the fluorescent lamp control system that the embodiment of the present invention provides, and for convenience of explanation, illustrate only the part relevant to the embodiment of the present invention, details are as follows.
Fluorescent lamp control system comprises the fluorescent lamp illuminance control circuit 1, dimming ballast 2 and the fluorescent lamp 3 that connect in turn, wherein, fluorescent lamp illuminance control circuit 1 comprises: user's input interface module 11, control module 12, illuminance transducer 13 and communication interface module 14; User's input interface module 11 is connected to the first control input end of control module 12, illuminance transducer 13 is connected to the second control input end of control module 12, the input of communication interface module 14 is connected to the control output end of control module 12, the output of communication interface module 14 is connected to the input of dimming ballast 2, and the output of dimming ballast 2 connects fluorescent lamp 3; User inputs the first brightness value by user's input interface module 11 as required, illuminance transducer 13 environmentally in the change Real-time Collection light signal of light, and light signal is converted to photoelectric current digital signal, control module 12 exports second brightness value corresponding with photoelectric current digital signal, and the illumination the first brightness value being deducted light modulation difference output illumination control signal control dimming ballast 2 pairs of fluorescent lamps 3 that the second brightness value obtains regulates, and makes the illumination in environment constant.
The fluorescent lamp illuminance control circuit that the embodiment of the present invention provides is owing to make use of the light signal in illuminance transducer 13 testing environment, the illumination being controlled dimming ballast 2 pairs of fluorescent lamps 3 by control module 12 is automatically adjusted, illumination can be realized constant, the illumination of natural daylight in environment can be made full use of like this, achieve energy-conservation function, user can also be made simultaneously to feel and to reduce the change of surround lighting the fatigue strength of eyes, improve operating efficiency; The life-span of fluorescent lamp tube can also be extended simultaneously.
In embodiments of the present invention, illuminance transducer 13 comprises: light sensor and AD conversion unit, wherein, light sensor environmentally in light change gather light signal, the light signal of light sensor collection is converted to photoelectric current digital signal and exports to control module by AD conversion unit.As one embodiment of the present of invention, light sensor can be clear glass or photo resistance.
In embodiments of the present invention, illuminance transducer 13 is connected with control module 12 by iic bus.The output of control module 12 is connected with communication interface module 14 by controller local area network (Controller Area Network, CAN) bus, and communication interface module 14 is connected with dimming ballast 2 by CAN; CAN is the serial communication protocol of ISO International standardization, is a kind of serial communication network effectively can supported distributed AC servo system or control in real time, has outstanding reliability, real-time and flexibility.The embodiment of the present invention adopts CAN to communicate, and can reach antijamming capability strong, the effect of long transmission distance.
In embodiments of the present invention, control module 12 can adopt micro-control unit (Micro Control Unit, MCU), also can adopt other controllers such as single-chip microcomputer.Fig. 2 shows the physical circuit figure of the control module 12 adopting MCU, and for convenience of explanation, illustrate only the part relevant to the embodiment of the present invention, details are as follows.
Control module 12 comprises chip U9 and peripheral circuit thereof, and wherein the VBAT pin of U9 connects the first direct voltage 3.3V, the PC13-TAMPER-RTC pin of U9, PC14-OSC32_IN pin and PC15-OSC32_OUT pin is all unsettled does not connect, the PD0OSC_IN pin of U9 is connected to the PD1OSC_OUT pin of U9 by resistance R33, the PD0OSC_IN pin of U9 is also connected to the PD1OSC_OUT pin of U9 by crystal oscillator Y1, the PD0OSC_IN pin of U9 is also by electric capacity C27 ground connection, the PD1OSC_OUT pin of U9 is also by electric capacity C26 ground connection, resistance R32 and electric capacity C24 is connected in series between voltage 3.3V and ground, resistance R32 and electric capacity C24 is connected in series the NRST pin holding S0 to be connected to U9, being connected in series of resistance R32 and electric capacity C24 holds S0 also by K switch 1 ground connection, being connected in series of resistance R32 and electric capacity C24 is held S0 also to draw REST and is held, the VSSA pin ground connection of U9, the VDDA pin of U9 connects the first direct voltage 3.3V, electric capacity C25 is connected between the VSSA pin of U9 and the VDDA pin of U9, the PA0-WKUP pin of U9, PA1 pin, PA2 pin, PA3 pin, PA4 pin, PA5 pin, PA6 pin, PA7 pin, PB0 pin, PB1 pin, PB10 pin, PB11 pin is all unsettled not to be connect, the PB2 pin ground connection of U9, the VSS_1 pin ground connection of U9, the VSS_2 pin ground connection of U9, the VSS_3 pin ground connection of U9, the VDD_1 pin of U9 meets the first direct voltage 3.3V, and the VDD_2 pin of U9 meets the first direct voltage 3.3V, the VDD_3 pin of U9 meets the first direct voltage 3.3V, the PA15 pin of U9, PA14 pin, PA13 pin, PA12 pin, PA11 pin, PA10 pin, PA9 pin, PA8 pin, PB15 pin, PB14 pin, PB13 pin, PB12 pin, PB3 pin, PB4 pin, all unsettledly do not connect, the PB5 pin of U9 draws INT-PB5 end, and the PB6 pin of U9 draws SCL-PB6 end, and the PB7 pin of U9 draws SDA-PB7 end, and the PB8 pin of U9 draws CAN-PB8 end, and the PB9 pin of U9 draws CAN-PB9 end.Wherein, chip U9 can adopt the arm processor of 32, and its inside is integrated with CAN controller.Chip U9 adopts the design of this high integration, saves power consumption, reduces circuit volume.
In embodiments of the present invention, illuminance transducer 13 adopts integrated circuit, stable work in work, and operating temperature range is wide, can increase the service life; As shown in Figure 3, for convenience of explanation, illustrate only the part relevant to the embodiment of the present invention, details are as follows for the physical circuit of the illuminance transducer 13 adopting integrated circuit to realize.
Illuminance transducer 13 comprises chip U2, resistance R11, R12, R13 and electric capacity C4, wherein, the VDD pin of chip U2 connects the first direct voltage 3.3V, the VDD pin of chip U2 is also by electric capacity C4 ground connection, the Addr pin of chip U2 and the equal ground connection of GND pin, the SDA pin of chip U2 is connected to the first direct voltage 3.3V by resistance R11, and the SDA pin of chip U2 is also connected to the PB7 pin of chip U9; The INT pin of chip U2 is connected to the first direct voltage 3.3V by resistance R12, and the INT pin of chip U2 is also connected to the PB5 pin of chip U9; The SCL pin of chip U2 is connected to the first direct voltage 3.3V by resistance R13, and the SCL pin of chip U2 is also connected to the PB6 pin of chip U9.Wherein, chip U2 can adopt TSL2561 chip.
In embodiments of the present invention, changed by the level of communication interface module 14 pairs of control module 12 outputs, as shown in Figure 4, for convenience of explanation, illustrate only the part relevant to the embodiment of the present invention, details are as follows for the physical circuit of communication interface module 14.
Communication interface module 14 comprises chip U7 and resistance R18, R23, R24, the VCC pin of its chips U7 connects the first direct voltage 3.3V, the GND pin ground connection of chip U7, the RS pin ground connection of chip U7, the VREF pin of chip U7 is unsettled not to be connect, the CANH pin of chip U7 connects J5CAN bus interface, the CANL pin of chip U7 connects J4CAN bus interface, resistance R18 is connected between the CANH pin of chip U7 and the CANL pin of chip U7, the D pin of chip U7 is connected to the PB9 pin of U9 by resistance R24, the R pin of chip U7 is connected to the PB8 pin of U9 by resistance R23.
As one embodiment of the present of invention, the CAN transceiver of the 3.3V that chip U7 can adopt Texas Instruments to produce, convert the signal that CAN controller inner integrated for chip U9 exports to differential signal, also the LVTTL level conversion that CAN controller exports is become the CAN signal level of standard simultaneously.
Fig. 5 shows the realization flow of the control method of the fluorescent lamp control system adopting the embodiment of the present invention to provide, and specifically comprises the following steps:
In step s 51: the first brightness value obtaining outside input;
In step S52: by the variable signal of light in transducer Real-time Obtaining environment, generate photo-signal;
In step S53: according to photo-signal generation the second brightness value corresponding thereto,
In step S54: described first brightness value is deducted described second brightness value and obtain light modulation difference, export illumination control signal according to described light modulation difference;
In step S55: illumination control signal is sent to dimming ballast, in order to regulate the illumination of fluorescent lamp, make the illumination in environment constant.
In embodiments of the present invention, in step e, utilize CAN that illumination control signal is sent to dimming ballast.
In embodiments of the present invention, this control method generates photo-signal by the variable signal of light in transducer Real-time Obtaining environment; According to photo-signal generation the second brightness value corresponding thereto, the first brightness value input outside and the second brightness value compare judgement, control the illumination of dimming ballast to fluorescent lamp according to judged result output illumination control signal soldier to regulate, make the illumination in environment constant.
The fluorescent lamp illuminance control circuit that the embodiment of the present invention provides gathers the light signal changed in environment by illuminance transducer, the brightness value set with user compares, regulating by exporting the illumination of illumination control signal control dimming ballast to fluorescent lamp after control module process, making the illumination in environment constant; Achieve energy-conservation, extend the useful life of fluorescent lamp tube; Adopt CAN to carry out communications, antijamming capability is strong, long transmission distance simultaneously.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a fluorescent lamp illuminance control circuit, is characterized in that, comprising:
Control module, is connected to user's input interface module of the first control input end of described control module, is connected to the illuminance transducer of the second control input end of described control module, and communication interface module; The input of described communication interface module is connected to the control output end of described control module, and the output of described communication interface module connects the dimming ballast for controlling fluorescent lamp;
The first brightness value that described user's input interface module receives outside input is fed through described control module,
Described illuminance transducer environmentally in the change Real-time Collection light signal of light, and light signal is converted to photoelectric current digital signal, is fed through described control module;
Described control module generates second brightness value corresponding with described photoelectric current digital signal, and the light modulation difference of described second brightness value acquisition is deducted according to described first brightness value, output illumination control signal controls the illumination of described dimming ballast to fluorescent lamp and regulates, and makes the illumination in environment constant;
Described control module comprises arm processor chip U9 and peripheral circuit thereof, the VBAT pin of its chips U9 connects the first direct voltage, the PD0OSC_IN pin of chip U9 is connected to the PD1OSC_OUT pin of chip U9 by resistance R33, the PD0OSC_IN pin of chip U9 is also connected to the PD1OSC_OUT pin of chip U9 by crystal oscillator Y1, the PD0OSC_IN pin of chip U9 is also by electric capacity C27 ground connection, the PD1OSC_OUT pin of chip U9 is also by electric capacity C26 ground connection, resistance R32 and electric capacity C24 is connected in series between described first DC voltage output end and ground, resistance R32 and electric capacity C24 is connected in series the NRST pin holding S0 to be connected to chip U9, being connected in series of resistance R32 and electric capacity C24 holds S0 also by K switch 1 ground connection, being connected in series of resistance R32 and electric capacity C24 is held S0 also to draw REST and is held, the VSSA pin ground connection of chip U9, the VDDA pin of chip U9 connects the first direct voltage, electric capacity C25 is connected between the VSSA pin of chip U9 and the VDDA pin of chip U9, the PB2 pin ground connection of chip U9, the VSS_1 pin ground connection of chip U9, the VSS_2 pin ground connection of chip U9, the VSS_3 pin ground connection of chip U9, the VDD_1 pin of chip U9 connects the first direct voltage, the VDD_2 pin of chip U9 connects the first direct voltage, the VDD_3 pin of chip U9 connects the first direct voltage, the PB5 pin of chip U9 draws INT-PB5 end, the PB6 pin of chip U9 draws SCL-PB6 end, the PB7 pin of chip U9 draws SDA-PB7 end, the PB8 pin of chip U9 draws CAN-PB8 end, the PB9 pin of chip U9 draws CAN-PB9 end,
Described illuminance transducer comprises the chip U2 that model is TSL2561, resistance R11, R12, R13 and electric capacity C4, wherein, the VDD pin of chip U2 connects the first direct voltage, the VDD pin of chip U2 is also by electric capacity C4 ground connection, the Addr pin of chip U2 and the equal ground connection of GND pin, the SDA pin of chip U2 is connected to the first direct voltage by resistance R11, and the SDA pin of chip U2 is also connected to the PB7 pin of chip U9; The INT pin of chip U2 is connected to the first direct voltage by resistance R12, and the INT pin of chip U2 is also connected to the PB5 pin of chip U9; The SCL pin of chip U2 is connected to the first direct voltage by resistance R13, and the SCL pin of chip U2 is also connected to the PB6 pin of chip U9;
Described communication interface module comprises CAN transponder chip U7 and resistance R18, R23, R24, wherein, the VCC pin of chip U7 connects the first direct voltage, the GND pin ground connection of chip U7, the RS pin ground connection of chip U7, the CANH pin of chip U7 connects J5 bus interface, the CANL pin of chip U7 connects J4 bus interface, resistance R18 is connected between the CANH pin of chip U7 and the CANL pin of chip U7, the D pin of chip U7 is connected to the PB9 pin of chip U9 by resistance R24, the R pin of chip U7 is connected to the PB8 pin of chip U9 by resistance R23.
2. fluorescent lamp illuminance control circuit as claimed in claim 1, it is characterized in that, described illuminance transducer is connected with described control module by iic bus.
3. fluorescent lamp illuminance control circuit as claimed in claim 1, it is characterized in that, the output of described communication interface module is connected to the input of described dimming ballast by CAN.
4. fluorescent lamp illuminance control circuit as claimed in claim 1, it is characterized in that, described illuminance transducer comprises:
Light sensor, environmentally, the change of light gathers light signal; And
AD conversion unit, is converted to photoelectric current digital signal by the light signal that described light sensor gathers and exports to described control module.
5. fluorescent lamp illuminance control circuit as claimed in claim 4, it is characterized in that, described light sensor is clear glass or photo resistance.
6. a fluorescent lamp control system, it comprises the fluorescent lamp illuminance control circuit, dimming ballast and the fluorescent lamp that connect in turn, it is characterized in that, described fluorescent lamp illuminance control circuit is the fluorescent lamp illuminance control circuit described in any one of claim 1-5.
7. adopt a control method for fluorescent lamp control system according to claim 6, it is characterized in that, comprise the steps:
Step a: the first brightness value obtaining outside input;
Step b: by the variable signal of light in transducer Real-time Obtaining environment, generates photo-signal;
Step c: according to described photo-signal generation the second brightness value corresponding thereto;
Steps d: described first brightness value is deducted described second brightness value and obtain light modulation difference, export illumination control signal according to described light modulation difference;
Step e: described illumination control signal is sent to dimming ballast, in order to regulate the illumination of fluorescent lamp, makes the illumination in environment constant.
8. control method as claimed in claim 7, is characterized in that, in step e, utilize CAN that described illumination control signal is sent to dimming ballast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910188438.6A CN101720162B (en) | 2009-11-27 | 2009-11-27 | Fluorescent lamp illuminance control circuit, fluorescent lamp control system and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910188438.6A CN101720162B (en) | 2009-11-27 | 2009-11-27 | Fluorescent lamp illuminance control circuit, fluorescent lamp control system and control method thereof |
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| CN101720162A CN101720162A (en) | 2010-06-02 |
| CN101720162B true CN101720162B (en) | 2015-01-21 |
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| CN200910188438.6A Expired - Fee Related CN101720162B (en) | 2009-11-27 | 2009-11-27 | Fluorescent lamp illuminance control circuit, fluorescent lamp control system and control method thereof |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106358339A (en) * | 2016-11-08 | 2017-01-25 | 深圳市兴灯业电子有限公司 | Dimmable LED illuminating device capable of automatically keeping illuminance |
| CN109058949A (en) * | 2018-06-29 | 2018-12-21 | 中山市中大半导体照明技术研究有限公司 | The controllable DALI illuminance sensor of permanent illumination |
| CN111629489A (en) * | 2020-06-05 | 2020-09-04 | 东莞华明灯具有限公司 | Self-adaptive anti-interference induction lamp circuit |
| CN117062271B (en) * | 2023-10-13 | 2024-01-19 | 厦门普为光电科技有限公司 | Real-time illumination constant adjusting system and method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN88200499U (en) * | 1988-01-16 | 1988-09-21 | 广东省连平塑料厂 | Automatic illumination-regulating device for keeping illumination constant |
| CN101064979A (en) * | 2006-11-28 | 2007-10-31 | 上海电器科学研究所（集团）有限公司 | Wireless control light modulation ballast |
| CN200997718Y (en) * | 2006-12-13 | 2007-12-26 | 厦门金龙联合汽车工业有限公司 | Triggering electronic ballast controlling system of fluorescent light in bus |
| CN101257762A (en) * | 2008-04-10 | 2008-09-03 | 杨素芬 | Digital intelligent electric ballast of high power ultraviolet lamp tube |
| CN201119106Y (en) * | 2007-11-12 | 2008-09-17 | 南开大学 | Self-adapted lighting controller for fluorescent lamp |
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- 2009-11-27 CN CN200910188438.6A patent/CN101720162B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88200499U (en) * | 1988-01-16 | 1988-09-21 | 广东省连平塑料厂 | Automatic illumination-regulating device for keeping illumination constant |
| CN101064979A (en) * | 2006-11-28 | 2007-10-31 | 上海电器科学研究所（集团）有限公司 | Wireless control light modulation ballast |
| CN200997718Y (en) * | 2006-12-13 | 2007-12-26 | 厦门金龙联合汽车工业有限公司 | Triggering electronic ballast controlling system of fluorescent light in bus |
| CN201119106Y (en) * | 2007-11-12 | 2008-09-17 | 南开大学 | Self-adapted lighting controller for fluorescent lamp |
| CN101257762A (en) * | 2008-04-10 | 2008-09-03 | 杨素芬 | Digital intelligent electric ballast of high power ultraviolet lamp tube |
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