CN203368883U - Fluorescent lamp dimming circuit - Google Patents
Fluorescent lamp dimming circuit Download PDFInfo
- Publication number
- CN203368883U CN203368883U CN 201320460719 CN201320460719U CN203368883U CN 203368883 U CN203368883 U CN 203368883U CN 201320460719 CN201320460719 CN 201320460719 CN 201320460719 U CN201320460719 U CN 201320460719U CN 203368883 U CN203368883 U CN 203368883U
- Authority
- CN
- China
- Prior art keywords
- resistance
- input
- voltage
- output
- electric capacity
- 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
Images
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
The utility model discloses a fluorescent lamp dimming circuit which comprises a main circuit, an auxiliary power supply module, a one-chip microcomputer control module and a driver module. Input power Vac is connected to input of the auxiliary power supply module; output of the auxiliary power supply module is respectively connected to power input ends of the one-chip microcomputer control module and the driver module; the one-chip microcomputer control module acquires main circuit input voltage, voltage across a fluorescent lamp and voltage across a capacitor, wherein the voltages are respectively sampled by first, second and third voltage sensors; control signals outputted from the one-chip microcomputer control module are connected to a drive signal end of the driver module; and output of the driver module is connected to gate poles of two switch tubes in the main circuit. According to the utility model, the problem that lifetime of a fluorescent lamp is minimized by frequent cut-off of an electronic ballast is solved, and energy consumed by the fluorescent lamp itself is also very low. Thus, the energy-saving purpose is achieved.
Description
Technical field
The utility model relates to the fluorescent lamp light regulating technology, is specifically related to be applied to the fluorescent lamp light adjusting circuit of different manufacturers, dissimilar various models.
Background technology
Illumination plays vital effect in the middle of energy saving and greenhouse gas emission, can utilize new lighting apparatus to improve illumination efficiency as the LED lamp, but, consumption by effectively reducing electric energy (as fluorescent lamp adjusted very secretly when some occasions are by the no one, lighten when the people is arranged the energy consumption that fluorescent lamp reduces fluorescent lamp), traditional fluorescent lamp aspect energy-conservation still highly significant.
Picture fluorescent lamp, mercury lamp and these fluorescent lamps of sodium vapor lamp are much higher with respect to incandescent lamp efficiency, control these fluorescent lamps and are faced with some stern challenges.These electric lights of picture fluorescent lamp, often open once, and its life-span approximately reduces one hour, so can not turn on and off frequently.And a lot of electric ballast of use is all to regulate fluorescent lamp brightness by opening continually fast the shutoff fluorescent lamp as the Buck converter at present, the life-span of fluorescent lamp is greatly reduced, and this is also the electric ballast reason that extensive use is not got up in regulating the fluorescent lamp field.
The utility model content
In view of above background, in order to overcome existing deficiency, a kind of fluorescent lamp light adjusting circuit is provided, not only solve electron rectifier and frequently cut-off the problem that fluorescent lamp reduces fluorescent lifetime, and the energy that itself consumes is also very low, thereby reached energy-conservation purpose.
In order to achieve the above object, the technical scheme that the utility model is taked is:
A kind of fluorescent lamp light adjusting circuit, it comprises main circuit, accessory power supply module, single chip control module, driver module.The AC+ of input power Vac connects the input of accessory power supply module, AC-ground connection.The output Vcc of accessory power supply module is connected with the power input Vcc of single chip control module and driver module respectively.The sampled voltage of single chip control module input is from the first voltage sensor, second voltage transducer, tertiary voltage transducer in main circuit.The input of the control signal termination driver module of single chip control module output, and the first driving signal, second of driver module output drives signal to connect the first switching tube in main circuit, the gate pole of second switch pipe.
In above-mentioned fluorescent lamp light adjusting circuit, main circuit is connected between fluorescent lamp and input power, and main circuit comprises the first switching tube, second switch pipe, the first diode, the second diode, the first electric capacity, fluorescent lamp, the first voltage sensor, second voltage transducer and tertiary voltage transducer.The first switching tube and the first diode inverse parallel, second switch pipe and the second diode inverse parallel, the source series of the first switching tube source electrode and second switch pipe forms brachium pontis, and the positive pole of the first electric capacity connects the drain electrode of the first switching tube, and the negative pole of the first electric capacity connects the drain electrode of second switch pipe.The input of the first voltage sensor and power input parallel connection, the input of second voltage transducer and the first Capacitance parallel connection, the input of tertiary voltage transducer and fluorescent lamp parallel connection, the output of the first voltage sensor, second voltage transducer and tertiary voltage transducer connects the voltage sample end of single chip control module.Daylight lamp string is associated in main circuit, and one terminates at power supply AC-end, and the other end is connected on the negative pole of the first electric capacity.
In above-mentioned fluorescent lamp light adjusting circuit, the accessory power supply module comprises rectifier bridge Bridge, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the first resistance, the second resistance, the 5th diode.For exporting the first voltage stabilizing chip TL783 of 15V direct voltage and for exporting the second voltage stabilizing chip 7805 of 5V direct voltage.The upper and lower two ends of rectifier bridge Bridge connect respectively AC+ and the AC-two ends of input power Vac, and two ends join with the second electric capacity two ends respectively.The anodal termination first voltage stabilizing chip input of the second electric capacity, the first voltage stabilizing chip output connects the second voltage stabilizing chip input, and the second voltage stabilizing chip output is connected with the input Vcc of one-chip computer module and driver module.The earth terminal of the first voltage stabilizing chip is connected with the second resistance one end, the other end ground connection of the second resistance.One end of the first resistance is connected with an end of the second resistance, another termination first voltage stabilizing chip output.The 3rd electric capacity connects the second voltage stabilizing chip input, other end ground connection.The output of the 4th capacitance cathode termination the second voltage stabilizing chip, other end ground connection.The positive termination second voltage-stabiliser tube output of the 5th diode, another termination second voltage stabilizing chip input.
In above-mentioned fluorescent lamp light adjusting circuit, driver module comprises not gate, the 3rd resistance, the 4th resistance, the 5th electric capacity, the 6th electric capacity, first and door, second and door, driving isolation circuit one, driving isolation circuit two.The driving signal of single chip control module output be connected to input, the 4th resistance of not gate an end, first with the door input and second and an input.The output of not gate connects an end of the 3rd resistance, another termination first and an end of door and an end of the 5th electric capacity, the other end ground connection of the 5th electric capacity of the 3rd resistance; One end of another termination the 6th electric capacity of the 4th resistance and second and the door another input, the other end ground connection of the 6th electric capacity.First with the door and second and output connect respectively driving isolation circuit one, driving isolation circuit two.
In above-mentioned fluorescent lamp light adjusting circuit, each driving isolation circuit comprises the 5th resistance, the 6th resistance, the 5th switching tube, optical coupling isolator, the 7th resistance, the 8th resistance; The output of the 6th resistance one end connection first of driving isolation circuit and door, the output of the 6th resistance one end link second of driving isolation circuit and door, the other end of the 6th resistance connects the base stage of the 5th switching tube, the 5th source ground that opens the light pipe, the 5th collector electrode that opens the light pipe connects the negative electrode of optical coupling isolator input, the anode of optocoupler driver is connected with the 5th resistance, and the 5th resistance connects the output of the second voltage stabilizing chip in the accessory power supply module; The source electrode of the output termination main circuit driving switch pipe of optical coupling isolator, another output of optical coupling isolator is connected with the 7th resistance with the 8th resistance, the output of the first voltage stabilizing chip in another termination accessory power supply module of the 7th resistance, the grid of another termination main circuit driving switch pipe of the 8th resistance.
Compared with prior art, the utlity model has following advantage and technique effect: the utility model has not only solved electric ballast and has frequently cut-off the problem that fluorescent lamp reduces fluorescent lifetime, and the energy consumed with regard to itself is also very low, thereby reached energy-conservation purpose.Single chip control module receives the signal of the first voltage sensor, second voltage transducer, tertiary voltage transducer, select first, second switching tube to open the moment of shutoff, thereby change the first electric capacity place in circuit time length, equivalence changes the size of its capacitance, change the voltage of fluorescent lamp both sides, thereby change the brightness of fluorescent lamp.The wide ranges that this fluorescent lamp regulating circuit is regulated, can regulate fluorescent lamp and make it reach very dark degree and be unlikely to make fluorescent lamp to turn-off, thereby postpone the life-span of fluorescent lamp.
The accompanying drawing explanation
Fig. 1 is light adjusting circuit overall construction drawing of the present utility model;
Fig. 2 is the circuit diagram of accessory power supply module of the present utility model;
Fig. 3 is the circuit diagram of driver module of the present utility model;
Fig. 4 is the driving isolation circuit diagram in driver module of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further, but enforcement of the present utility model and protection range are not limited to this.
Fig. 1 has provided the overall construction drawing of the fluorescent lamp light adjusting circuit of the utility model example, comprising main circuit, and accessory power supply module, single chip control module (can adopt single-chip microcomputer commonly used), driver module.Main circuit comprises the first switching tube Q1, second switch pipe Q2, the first diode D1, the second diode D2, the first capacitor C 1, fluorescent lamp, the first voltage sensor, second voltage transducer, tertiary voltage transducer.The first switching tube and the first diode inverse parallel, second switch pipe and the second diode inverse parallel, the source series of the first switching tube source electrode and second switch pipe forms brachium pontis, and the positive pole of the first electric capacity connects the drain electrode of the first switching tube, and the negative pole of the first electric capacity connects the drain electrode of second switch pipe.The input of the first voltage sensor and power input parallel connection, the input of second voltage transducer and the first Capacitance parallel connection, the input of tertiary voltage transducer and fluorescent lamp parallel connection, the output of the first voltage sensor, second voltage transducer and tertiary voltage transducer connects the voltage sample end of single chip control module.Daylight lamp string is associated in main circuit.The accessory power supply module is converted into the alternating voltage of 220V the direct voltage output of 15V and 5V, as the accessory power supply of single chip control module and driver module.Three voltage sensor sampled voltage signals input to single chip control module, and single chip control module output control signal is to driver module.Driver module Jiang Zhe road drives signal to be divided into two groups of driving signals of mutually isolating and removes to drive two switching tubes in main circuit, by regulating the conducting moment of first, second switching tube, thereby control the length of the first electric capacity place in circuit time, the equivalence change capacitance size, thereby change fluorescent lamp both sides voltage height, regulate the brightness of fluorescent lamp.
Fig. 2 has provided the circuit diagram of fluorescent lamp light adjusting circuit accessory power supply module, and the accessory power supply module comprises rectifier bridge Bridge, the second capacitor C 2, the 3rd capacitor C 3, the 4th capacitor C 4, the first resistance R 1, the second resistance R 2, the 5th diode.For exporting the first voltage stabilizing chip TL783 of 15V direct voltage and for exporting the second voltage stabilizing chip 7805 of 5V direct voltage.The upper and lower two ends of rectifier bridge Bridge connect respectively AC+ and the AC-two ends of input power Vac, and two ends join with the second electric capacity two ends respectively.The Vin1 end of the anodal termination first voltage stabilizing chip of the second electric capacity, the first voltage stabilizing chip output Vout1 meets the second voltage stabilizing chip input Vin2, and the second voltage stabilizing chip output Vout2 is connected with the input Vcc of one-chip computer module and driver module.The earth terminal of the first voltage stabilizing chip is connected with the second resistance one end, the other end ground connection of the second resistance.One end of the first resistance is connected with an end of the second resistance, the output of another termination the first voltage stabilizing chip.The 3rd capacitor C 3 connects the input of the second voltage stabilizing chip, other end ground connection.The output of the 4th capacitance cathode termination the second voltage stabilizing chip, other end ground connection.The output end vo ut2 of positive termination second voltage-stabiliser tube of the 5th diode, the input Vin2 of another termination the second voltage stabilizing chip.Rectifier bridge becomes direct voltage by the ac voltage rectifier of 220V, the 4th capacitor C 2 is filter capacitor, the resistance of the first resistance and the second resistance is regulated the size of TL783 output voltage, the output filter capacitor that the 3rd capacitor C 3 is the first voltage stabilizing chip TL783 and the input filter capacitor of the second voltage stabilizing chip 7805.The output filter capacitor that the 4th capacitor C 4 is the second voltage stabilizing chip.The 5th diode protection voltage stabilizing chip 7805, provide a discharge loop.TL783 and 7805 exports respectively the direct voltage of 15V and 5V, as the power supply of internal circuit.
The circuit diagram that Fig. 3 is driver module, driver module comprise not gate U, the 3rd resistance R 3, the 4th resistance R 4, the 5th capacitor C 5, the 6th capacitor C 6, first and door U1, second with a U2, driving isolation circuit one, driving isolation circuit two.The driving signal of single chip control module output be connected to input, the 4th resistance of not gate an end, first with the door input and second and an input.The output of not gate connects an end of the 3rd resistance, another termination first and an end of door and an end of the 5th electric capacity, the other end ground connection of the 5th electric capacity of the 3rd resistance; One end of another termination the 6th electric capacity of the 4th resistance and second and the door another input, the other end ground connection of the 6th electric capacity.First with the door and second and output connect respectively driving isolation circuit one, driving isolation circuit two.Not gate U carries out the driving signal of single chip control module oppositely, when the high level of not gate U arrives, because the voltage at the 5th capacitor C 5 two ends can not suddenly change, so there is certain delay the time that the first time arrived with the rising edge of door U1 output signal arrived than the rising edge of not gate U output signal, thereby produces Dead Time.Two driving isolation circuit structures are identical, and the driving signal is isolated in their effect, thereby solved the isolation drive problem of first, second switching tube.
The circuit diagram that Fig. 4 is driving isolation in driver module, each driving isolation circuit comprises the 5th resistance, the 6th resistance, the 5th switching tube, optical coupling isolator T1, the 7th resistance, the 8th resistance; The output of the first driving isolation circuit the 6th resistance one end connection first and door, the output of the second driving isolation circuit the 6th resistance one end link second and door, the other end of the 6th resistance connects the base stage of the 5th switching tube, the 5th source ground that opens the light pipe, the 5th collector electrode that opens the light pipe connects the negative electrode of optical coupling isolator T1 input, the anode of optocoupler driver T1 is connected with the 5th resistance, and the 5th resistance connects the output of the second voltage stabilizing chip in the accessory power supply module; The source electrode of the output termination main circuit driving switch pipe of optical coupling isolator T1, another output of optical coupling isolator T1 is connected with the 7th resistance with the 8th resistance, the output of the first voltage stabilizing chip in another termination accessory power supply module of the 7th resistance, the grid of another termination main circuit driving switch pipe of the 8th resistance.When the high level that drives signal arrives, the 5th triode is open-minded, the effect of optical coupling isolator T1, and the driving signal is low level, drives the first switching tube conducting.When the low level that drives signal arrives, the 5th triode cut-off, the effect of optical coupling isolator T1, the driving signal is high level, drives the conducting of second switch pipe.
The control method of fluorescent lamp light adjusting circuit: by voltage divider principle, change the capacitance at the first electric capacity two ends, thereby change the partial pressure value at the first electric capacity two ends, also just changed the voltage at fluorescent lamp two ends.Single chip machine controlling circuit in single chip control module receives input supply voltage, the first electric capacity both end voltage and the fluorescent lamp both end voltage that the main circuit sampling obtains, then according to fluorescent lamp brightness regulation needs, decided the start pulse signal of single chip control module output by the conducting graph of a relation of the characteristic curve of fluorescent lamp self and two switching tubes, the break-make of controlling two switching tubes with this changes the length of the first electric capacity place in circuit time, the equivalence change the size of capacitance.
Claims (5)
1. the fluorescent lamp light adjusting circuit, is characterized in that comprising main circuit, accessory power supply module, single chip control module and driver module; One end (AC+) of input power (Vac) connects the input of accessory power supply module, the other end (AC-) ground connection; The output of accessory power supply module (Vcc) is connected with the power input of single chip control module and driver module respectively; The input sample voltage of single chip control module is from the first voltage sensor, second voltage transducer and tertiary voltage transducer in main circuit; The input of the output control signal termination driver module of single chip control module, and the first driving signal, second of driver module output drives signal to connect the first switching tube in main circuit, the gate pole of second switch pipe.
2. fluorescent lamp light adjusting circuit according to claim 1, be characterised in that main circuit comprises the first switching tube, second switch pipe, the first diode, the second diode, the first electric capacity, fluorescent lamp, the first voltage sensor, second voltage transducer and tertiary voltage transducer; The first switching tube and the first diode inverse parallel, second switch pipe and the second diode inverse parallel, the source series of the first switching tube source electrode and second switch pipe forms brachium pontis, and the positive pole of the first electric capacity connects the drain electrode of the first switching tube, and the negative pole of the first electric capacity connects the drain electrode of second switch pipe; The input of the first voltage sensor and power input parallel connection, the input of second voltage transducer and the first Capacitance parallel connection, the input of tertiary voltage transducer and fluorescent lamp parallel connection, the output of the first voltage sensor, second voltage transducer and tertiary voltage transducer connects the voltage sample end of single chip control module; Daylight lamp string is associated in main circuit, and one terminates at a described end (AC+) of input power, and the other end is connected on the negative pole of the first electric capacity.
3. fluorescent lamp light adjusting circuit according to claim 1, be characterised in that the accessory power supply module comprise rectifier bridge, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the first resistance, the second resistance and the 5th diode, for the first voltage stabilizing chip of exporting the 15V direct voltage with for exporting the second voltage stabilizing chip of 5V direct voltage; The upper and lower two ends of rectifier bridge connect respectively the two ends of input power (Vac), and two ends join with the second electric capacity two ends respectively in addition; The input (Vin1) of the anodal termination first voltage stabilizing chip of the second electric capacity, the output of the first voltage stabilizing chip (Vout1) connects the input (Vin2) of the second voltage stabilizing chip, and the output of the second voltage stabilizing chip (Vout2) is connected with the input (Vcc) of one-chip computer module and driver module; The earth terminal of the first voltage stabilizing chip is connected with the second resistance one end, the other end ground connection of the second resistance; One end of the first resistance is connected with an end of the second resistance, the output (Vout1) of another termination the first voltage stabilizing chip; The 3rd electric capacity (C3) connects the input (Vin2) of the second voltage stabilizing chip, other end ground connection; The output of the 4th capacitance cathode termination the second voltage stabilizing chip, other end ground connection; The output (Vout2) of positive termination second voltage-stabiliser tube of the 5th diode, the input (Vin2) of another termination the second voltage stabilizing chip.
4. fluorescent lamp light adjusting circuit according to claim 1, be characterised in that driver module comprises not gate, the 3rd resistance, the 4th resistance, the 5th electric capacity, the 6th electric capacity, first and door, second and door, the first driving isolation circuit, the second driving isolation circuit; The driving signal of single chip control module output be connected to input, the 4th resistance of not gate an end, first with the door input and second and an input; The output of not gate connects an end of the 3rd resistance, another termination first and an end of door and an end of the 5th electric capacity, the other end ground connection of the 5th electric capacity of the 3rd resistance; One end of another termination the 6th electric capacity of the 4th resistance and second and the door another input, the other end ground connection of the 6th electric capacity; First with the door and second and output connect respectively the first driving isolation circuit, the second driving isolation circuit.
5. fluorescent lamp light adjusting circuit according to claim 1, be characterised in that each driving isolation circuit comprises the 5th resistance, the 6th resistance, the 5th switching tube, optical coupling isolator, the 7th resistance, the 8th resistance; The output of the first driving isolation circuit the 6th resistance one end connection first and door, the other end of the 6th resistance connects the base stage of the 5th switching tube, the 5th source ground that opens the light pipe, the 5th collector electrode that opens the light pipe connects the negative electrode of optical coupling isolator input, the anode of optocoupler driver is connected with the 5th resistance, and the 5th resistance connects the output of the second voltage stabilizing chip in the accessory power supply module; The source electrode of the output termination main circuit driving switch pipe of optical coupling isolator, another output of optical coupling isolator is connected with the 7th resistance with the 8th resistance, the output of the first voltage stabilizing chip in another termination accessory power supply module of the 7th resistance, the grid of another termination main circuit driving switch pipe of the 8th resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320460719 CN203368883U (en) | 2013-07-31 | 2013-07-31 | Fluorescent lamp dimming circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320460719 CN203368883U (en) | 2013-07-31 | 2013-07-31 | Fluorescent lamp dimming circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203368883U true CN203368883U (en) | 2013-12-25 |
Family
ID=49816591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320460719 Expired - Fee Related CN203368883U (en) | 2013-07-31 | 2013-07-31 | Fluorescent lamp dimming circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203368883U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103369798A (en) * | 2013-07-31 | 2013-10-23 | 华南理工大学 | Daylight lamp dimming circuit and control method thereof |
-
2013
- 2013-07-31 CN CN 201320460719 patent/CN203368883U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103369798A (en) * | 2013-07-31 | 2013-10-23 | 华南理工大学 | Daylight lamp dimming circuit and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101657057B (en) | LED power circuit | |
| CN101932175B (en) | LED constant current driving circuit capable of dimming automatically | |
| CN101977475B (en) | LED constant current control device in PWM dimming mode | |
| CN201813599U (en) | LED (Light-Emitting Diode) dimmer power | |
| CN103607810A (en) | Control circuit of LED lighting equipment | |
| CN102014557A (en) | LED dimming power supply | |
| CN204465954U (en) | A kind of LED lamp drive circuit with dimming function | |
| CN203761633U (en) | Energy-saving LED traffic light with long service life | |
| CN102510605B (en) | Novel LED (light emitting diode) driving circuit and drive method | |
| CN203086806U (en) | A light adjusting circuit of a fluorescent lamp | |
| CN202077247U (en) | Illumination drive power supply for Light-emitting diode (LED) streetlamp | |
| CN204465970U (en) | A kind of LED street lamp drive circuit based on HV9931 | |
| CN203896538U (en) | LED driving power source employing single switch tube and two Buck-Boost circuits in cascade connection | |
| CN203596960U (en) | Miniature LED drive circuit and LED lamp having same | |
| CN102711322B (en) | High-efficiency energy-saving LED lighting flow balancing module | |
| CN103338545B (en) | A kind of fluorescent lamp light adjusting circuit and method of work thereof | |
| CN203368883U (en) | Fluorescent lamp dimming circuit | |
| CN204145795U (en) | Have APFC function without working frequency ripple wave LED streetlamp power source | |
| CN203934080U (en) | With the LED lamp driving power source of timing function | |
| CN203618188U (en) | Driving power supply of LED energy-saving lamp | |
| CN103052223A (en) | LED (light-emitting diode) lamp control circuit and tent lamp | |
| CN202435701U (en) | Automatic controller for electrodeless lamp serving as streetlamp | |
| CN204465952U (en) | A kind of LED energy-saving circuit based on MSP430 | |
| CN104735837A (en) | LED street lamp power supply without power frequency ripples and with APFC function | |
| CN204131813U (en) | A kind of fluorescent lamp light adjusting circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20160731 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |