CN2640198Y - Light-modulation controller for large fluorescent lamp - Google Patents
Light-modulation controller for large fluorescent lamp Download PDFInfo
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- CN2640198Y CN2640198Y CN 03251995 CN03251995U CN2640198Y CN 2640198 Y CN2640198 Y CN 2640198Y CN 03251995 CN03251995 CN 03251995 CN 03251995 U CN03251995 U CN 03251995U CN 2640198 Y CN2640198 Y CN 2640198Y
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Abstract
The utility model relates to a large fluorescent light dimming controller, which comprises an impulse enactment circuit, a frequency conversion impulse generator, a drive circuit, a power conversion circuit or a bridge style frequency conversion inverter, a switch transformer, a current detection and protection circuit, a voltage detection and protection circuit used for the current detection and protection of the load, a frequency detection circuit, a stable voltage power supply and a main circuit power supply; wherein, the impulse enactment circuit determining the giving of the dimming controller impulse mode and the work mode is connected with the frequency conversion impulse generator connected with drive circuit, the drive circuit connected with the power conversion circuit is supplied by the stable voltage power supply, the main circuit power supply is connected with power conversion circuit (a switch circuit) connected with the switch transformer, and the output port of switch transformer is connected with the load. The impulse generator emits adjustable impulse signal according to the impulse enactment circuit. The working power of the drive circuit is supplied by stable voltage power supply. The drive circuit adjusts the power tube switch state of the power conversion circuit at the same frequency with the impulse signal, so the drive circuit can make the main circuit power supply change into the impulse form of adjustable frequency and voltage. The switch transformer changes the needed light intensity voltage rating to satisfy the demand of the dimming index together with the current and voltage detection and trouble protection while using current detection and protection circuit and voltage detection and protection circuit at the load side. The frequency detection circuit (light intensity detection) is used to detect the dimming index, implement the closed-loop adjustment of the light intensity and ensure illuminating stabilization.
Description
Technical field
The utility model relates to a kind of large-scale adjusting brightness of fluorescent lamp controller, particularly a kind of inverse type frequency conversion type light adjusting controller.
Background technology
Large-scale fluorescent lighting power drive and light adjusting controller are a kind of artificial given or automatic control, utilize controllable frequency to come control Driver Circuit, realization is to the voltage of main circuit inversion electric energy and the adjusting of frequency, thus reach do not have flash, energy-conservation, harmonic content is few and the purpose of continuous light tuning.Its principle is based on the control mode that large-scale IGBT, GTR, GTO, SCR power tube carry out the contravariant frequency conversion.
The utility model content
The purpose of this utility model is to solve existing maximization or road fluorescent lighting driving and light modulation problem, thereby solve the light intensity and the illumination demand of energy waste and light field, improve labour intensity, increase work efficiency, reduce Harmonic Interference and be convenient to light independence and centralized control.
Another purpose of the present utility model provides high efficiency, cost is low, in light weight, easy to operate and control mode can be set power conversion controller.
The utility model includes: pulse setting circuit, the variable-frequency pulse generator, drive electrical equipment, circuit for power conversion or bridge-type variable frequency inverter, switch transformer, current detecting and protective circuit, voltage detecting and protective circuit, frequency detection circuit, stabilized voltage power supply, the main circuit working power, wherein, pulse setting circuit and variable-frequency pulse generator link, variable-frequency pulse generator and drive circuit link, stabilized voltage power supply is powered to drive circuit, drive circuit and circuit for power conversion link, main circuit working power and circuit for power conversion link, circuit for power conversion and switch transformer link, switch transformer output connects load, current detecting and protective circuit and voltage detecting and protective circuit are used for the detection and the protection of the electric current and the voltage of load-side, by the pulse mode of pulse setting circuit as light adjusting controller, method of work given; Pulse generator sends the pulse signal of frequency adjustable according to pulse setting circuit; Stabilized voltage power supply is supplied with the working power of drive circuit; Drive circuit is transformed into frequency and the adjustable impulse form of voltage to the main circuit working power according to the open and close state of the power tube of pulse signal same frequency ground power controlling change-over circuit (switching circuit); Change over the electric pressure of required light intensity by switch transformer, thereby reach the requirement of light modulation index, current detecting and protective circuit, voltage detecting and protective circuit are used for the electric current of load-side, the detection and the error protection effect of voltage; Frequency detection circuit (light field luminance detection) is used to detect the index of light modulation, implements the closed-loop adjustment of luminous intensity, guarantees the stable effect of illumination.
It can be analog pulse generator, digital pulse generator, computer pulse generator and SCM type pulse generator for described variable-frequency pulse generator.
Pulse mode is set and display circuit, and it is to set light modulation index and display unit.
Working method is set, and when choosing the computer pulse and send out device and SCM type pulse generator, it is to set beginning and ceasing the lamp time of fluorescent illumination.
Drive circuit can be the switching regulator drive circuit, comprising switching tube and switching regulator transformer, adjustment inductance and electric capacity; Also can be that the bridge-type variable frequency inverter drives.
Overcurrent detects and protective circuit can adopt current transformer and current sensor to carry out the current detecting of load circuit, comes the trigger protection circuit working by this detection signal, makes its system have overcurrent, short circuit and protection of opening circuit and warning.
Overvoltage detects and protective circuit can adopt voltage transformer and voltage sensor to carry out the voltage detecting of load circuit, comes the trigger protection circuit working by this detection signal, makes its system have the protection and the warning of overvoltage and power down.
Frequency detecting, light field luminance detection are that controller is provided with optical sensor in order to detect light intensity, control the light modulation index automatically.
The utility model is at the lighting demand in places such as the illumination of road lighting, colosseum, the on-the-spot illumination of large-scale performance, culvert, bridge and mine lighting, saves the energy, improves lighting quality, can finish to use up as required and according to environment task with an automatic light meter.
The utility model is owing to adopted variable-frequency pulse generator and electronic switch type dimmer, can significantly improve system operating efficiency, improve labour intensity, shorten the conciliation time, and and in the past dimmer, the rotary switch contact dimmer of reactance compared in light weight, easy adjustment, do not have and good action such as flash.
Drive circuit of the present utility model has two kinds of the two-way modes of switching tube, switching regulator transformer, the single-channel mode of adjusting inductance and electric capacity and switching tube, bridge type inverse, is convenient to different occasions, conveniently selects according to the power grade of fluorescent lamp.
Each member of the utility model adopts the modular construction design, has reduced whole weight and cost, has enlarged the scope of application, and is convenient to upgrade on existing facility and transform.
Description of drawings
Fig. 1 is a theory diagram of the present utility model.
Fig. 2 is the circuit diagram of the utility model first embodiment.
Fig. 3 is the circuit diagram of the utility model second embodiment.
Embodiment
Seeing also Fig. 2 cooperates shown in Figure 1, present embodiment is a single-channel mode, it includes pulse setting circuit, the variable-frequency pulse generator, drive electrical equipment, circuit for power conversion, switch transformer, current detecting and protective circuit, voltage detecting and protective circuit, frequency detection circuit, stabilized voltage power supply, the main circuit working power, wherein, pulse setting circuit and variable-frequency pulse generator link, variable-frequency pulse generator and drive circuit link, stabilized voltage power supply is powered to drive circuit, drive circuit and circuit for power conversion link, main circuit working power and circuit for power conversion link, circuit for power conversion and switch transformer link, switch transformer output connects load, current detecting and protective circuit and voltage detecting and protective circuit are used for the detection and the protection of the electric current and the voltage of load-side, by the pulse mode of pulse setting circuit as light adjusting controller, method of work given; Pulse generator sends the pulse signal of frequency adjustable according to pulse setting circuit; Stabilized voltage power supply is supplied with the working power of drive circuit; Drive circuit is transformed into frequency and the adjustable impulse form of voltage to the main circuit working power according to the open and close state of the power tube of pulse signal same frequency ground power controlling change-over circuit (switching circuit); Change over the electric pressure of required light intensity by switch transformer, thereby reach the requirement of light modulation index, current detecting and protective circuit, voltage detecting and protective circuit are used for the electric current of load-side, the detection and the error protection effect of voltage; Frequency detection circuit (light field luminance detection) is used to detect the index of light modulation, implements the closed-loop adjustment of luminous intensity, guarantees the stable effect of illumination.Drive circuit wherein be by R1, R2, R3, R4, R5, R6, R7, C1, C3, T1, T2, T3, GTR ,+Vcc ,-Vss constitutes, and also includes the switching regulator transformer in it, stabilized voltage power supply is to be made of D1, C2; Overvoltage detects and protective circuit is to be made of R8, R9, R10 and filter circuit; Frequency detection circuit is to be made of R8, R9, R10 and filter circuit.
Seeing also Fig. 3 cooperates shown in Figure 1, present embodiment is the two-way mode, it includes pulse setting circuit, the variable-frequency pulse generator, drive electrical equipment, the bridge-type variable frequency inverter, switch transformer, current detecting and protective circuit, voltage detecting and protective circuit, frequency detection circuit, stabilized voltage power supply, the main circuit working power, wherein, pulse setting circuit and variable-frequency pulse generator link, variable-frequency pulse generator and drive circuit link, stabilized voltage power supply is powered to drive circuit, drive circuit and circuit for power conversion link, main circuit working power and circuit for power conversion link, circuit for power conversion and switch transformer link, switch transformer output connects load, current detecting and protective circuit and voltage detecting and protective circuit are used for the detection and the protection of the electric current and the voltage of load-side, by the pulse mode of pulse setting circuit as light adjusting controller, method of work given; Pulse generator sends the pulse signal of frequency adjustable according to pulse setting circuit; Stabilized voltage power supply is supplied with the working power of drive circuit; Drive circuit is transformed into frequency and the adjustable impulse form of voltage to the main circuit working power according to the open and close state of the power tube of pulse signal same frequency ground power controlling change-over circuit (switching circuit); Change over the electric pressure of required light intensity by switch transformer, thereby reach the requirement of light modulation index, current detecting and protective circuit, voltage detecting and protective circuit are used for the electric current of load-side, the detection and the error protection effect of voltage; Frequency detection circuit (light field luminance detection) is used to detect the index of light modulation, implements the closed-loop adjustment of luminous intensity, guarantees the stable effect of illumination.Drive circuit wherein be by R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, C1, C2, T1, T2, T3, T4, T5, T6, GTR1, GTR2, GTR3, GTR4 ,+Vcc ,-Vss, not gate, constitute with door; Overvoltage detection wherein and protective circuit and frequency detection circuit constitute by R11, R12, R13 and filter circuit.
Claims (8)
1, a kind of large-scale adjusting brightness of fluorescent lamp controller, it is characterized in that: it includes pulse setting circuit, the variable-frequency pulse generator, drive electrical equipment, circuit for power conversion or bridge-type variable frequency inverter, switch transformer, current detecting and protective circuit, voltage detecting and protective circuit, frequency detection circuit, stabilized voltage power supply, the main circuit working power, wherein, pulse setting circuit and variable-frequency pulse generator link, variable-frequency pulse generator and drive circuit link, stabilized voltage power supply is powered to drive circuit, drive circuit and circuit for power conversion link, main circuit working power and circuit for power conversion link, circuit for power conversion and switch transformer link, switch transformer output connects load, current detecting and protective circuit and voltage detecting and protective circuit are used for the detection and the protection of the electric current and the voltage of load-side, by the pulse mode of pulse setting circuit as light adjusting controller, method of work given; Pulse generator sends the pulse signal of frequency adjustable according to pulse setting circuit; Stabilized voltage power supply is supplied with the working power of drive circuit; Drive circuit is transformed into frequency and the adjustable impulse form of voltage to the main circuit working power according to the open and close state of the power tube of pulse signal same frequency ground power controlling change-over circuit; Change over the electric pressure of required light intensity by switch transformer, thereby reach the requirement of light modulation index, current detecting and protective circuit, voltage detecting and protective circuit are used for the electric current of load-side, the detection and the error protection effect of voltage; Frequency detection circuit, light field luminance detection are used to detect the index of light modulation, implement the closed-loop adjustment of luminous intensity, guarantee the stable effect of illumination.
2, according to the described a kind of large-scale adjusting brightness of fluorescent lamp controller of claim 1, it is characterized in that: described variable-frequency pulse generator is analog pulse generator or digital pulse generator or computer type pulse generator or SCM type pulse generator.
3, according to the described a kind of large-scale adjusting brightness of fluorescent lamp controller of claim 1, it is characterized in that: described drive circuit is switching regulator drive circuit or bridge-type variable frequency inverter.
4, according to the described a kind of large-scale adjusting brightness of fluorescent lamp controller of claim 3, it is characterized in that: described switching regulator drive circuit is switch tubular type or switching regulator transformer or adjusts inductance and electric capacity.
5, according to the described a kind of large-scale adjusting brightness of fluorescent lamp controller of claim 1, it is characterized in that: the type of drive of described drive circuit is pulse drive mode or Digital Logical Circuits.
6, according to the described a kind of large-scale adjusting brightness of fluorescent lamp controller of claim 1, it is characterized in that: described circuit for power conversion and switch transformer are to serve as mainly to constitute with SCR or GTO or GTR or IGBT power tube.
7, according to the described a kind of large-scale adjusting brightness of fluorescent lamp controller of claim 1, it is characterized in that: described bridge-type variable frequency inverter is to serve as mainly to constitute with SCR or GTO or GTR or IGBT power tube.
8, according to the described a kind of large-scale adjusting brightness of fluorescent lamp controller of claim 1, it is characterized in that: described frequency detection circuit is to be made of frequency detecting transducer, filter circuit, amplifying circuit and frequency closed loop circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03251995 CN2640198Y (en) | 2003-07-21 | 2003-07-21 | Light-modulation controller for large fluorescent lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03251995 CN2640198Y (en) | 2003-07-21 | 2003-07-21 | Light-modulation controller for large fluorescent lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2640198Y true CN2640198Y (en) | 2004-09-08 |
Family
ID=34294120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03251995 Expired - Fee Related CN2640198Y (en) | 2003-07-21 | 2003-07-21 | Light-modulation controller for large fluorescent lamp |
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| Country | Link |
|---|---|
| CN (1) | CN2640198Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101754530B (en) * | 2008-12-12 | 2011-04-13 | 凹凸电子（武汉）有限公司 | Driving circuit with dimming controller for driving light sources, method and system therefor |
| CN101164385B (en) * | 2005-04-22 | 2012-06-20 | 三多尼克爱特克两合股份有限公司 | Protection of an emitting branch of an interface device |
| TWI478625B (en) * | 2011-02-16 | 2015-03-21 | O2Micro Int Ltd | Dimming controllers, driving circuits and driving methods for driving light source |
-
2003
- 2003-07-21 CN CN 03251995 patent/CN2640198Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101164385B (en) * | 2005-04-22 | 2012-06-20 | 三多尼克爱特克两合股份有限公司 | Protection of an emitting branch of an interface device |
| CN101754530B (en) * | 2008-12-12 | 2011-04-13 | 凹凸电子（武汉）有限公司 | Driving circuit with dimming controller for driving light sources, method and system therefor |
| TWI478625B (en) * | 2011-02-16 | 2015-03-21 | O2Micro Int Ltd | Dimming controllers, driving circuits and driving methods for driving light source |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |