CN102413626A - Induction-type fluorescent lamp - Google Patents
Induction-type fluorescent lamp Download PDFInfo
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- CN102413626A CN102413626A CN2010102897348A CN201010289734A CN102413626A CN 102413626 A CN102413626 A CN 102413626A CN 2010102897348 A CN2010102897348 A CN 2010102897348A CN 201010289734 A CN201010289734 A CN 201010289734A CN 102413626 A CN102413626 A CN 102413626A
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Abstract
The invention discloses an induction-type fluorescent lamp which is provided with a power supply control module, an induction control module, a dimming control module and a light source part, wherein the power supply control module is used for receiving electric power from a power source, converting the electric power into high-voltage direct-current and outputting the high-voltage direct-current to the dimming control module; the induction control module is used for generating an induction signal while sensing an external signal, and then transmitting the induction signal to the dimming control module; and the dimming control module is used for continuously outputting high-voltage alternating currents with lower power to the light source part so as to enable the light source part to continuously give out lights with lower brightness while not receiving the induction signal, and continuously outputting high-voltage alternating currents with higher power to the light source part so as to enable the light source part to continuously give out lights with higher brightness while receiving the induction signal. The induction-type fluorescent lamp regulates the brightness of a fluorescent light through sensing whether the external signal exists or not, and can improve the brightness only when illumination needs exist, thus not only can energy be saved, but also the switching times of the fluorescent light can be greatly reduced and the service life of the fluorescent light can be prolonged.
Description
Technical field
The present invention relates to a kind of induction type fluorescent lighting fixture, specifically, relate to a kind of induction type fluorescent lighting fixture of Dimmable.
Background technology
Fluorescent lamp is as a member in the gas discharge light fixture family, and its appearance has had the history of decades.Because fluorescent lamp has good photoelectricity usefulness, and low preparation cost, so become a kind of popular lighting source already.
But, because fluorescent lamp has higher starting resistor and low discharge is kept voltage, after it passed through high voltage startup, voltage descended, and electric current will continue to increase.If do not add restriction, then electric current will continue to increase until fluorescent lamp is burnt, therefore must in circuit, be connected in series one with the type of lamp, the ballast that specification is mated.The effect of this ballast provides the high starting voltage that makes fluorescent lamp starting, and restriction fluorescent lamp electric current makes it to be stabilized in the scope of defined.Ballast in the market has two kinds of electric ballast and Inductive ballasts, but because Inductive ballast is heavy, consume copper, iron is many, and very take electric, so replaced by electric ballast gradually.
On the other hand; Along with improving constantly of quickening of urbanization process and living standards of the people; Increasing large-scale public infrastructure and large-scale residential quarters or commercial center are able to build; How effective and energy-conservation management is rationally carried out in these heavy constructions crowd's illumination, just become more and more important problem.In recent years, have and adopted the inductive lightning scheme in many buildings.Such as in the corridor of residential building, when being arranged through certain floor, the people sends sound of movement, received acoustic signals by sonic transducer, then this floor electric light is lighted automatically; When the people leaves this floor, then electric light extinguishes immediately.Light source in this type of induction type illuminator, what select for use usually is exactly energy-conservation and fluorescent lighting fixture that brightness is high.
Though above-mentioned inductive lightning scheme is energy-conservation and effective, be automatic induction owing to what adopt, so can't regulate the light on and off frequency of light source.And for fluorescent lamp, its maximum shortcoming is exactly that open and close continually will reduce useful life greatly.Therefore, in order to prolong the useful life of fluorescent lamp, can be deliberately some be positioned at the frequent light fixture that needs the place of illumination and be provided with and grows up brightly, so, just can't answer illumination scheme by usability, waste energy.
Summary of the invention
The object of the present invention is to provide a kind of induction type fluorescent lighting fixture that can regulate brightness according to induced signal automatically.
For realizing above-mentioned purpose, the present invention has taked following technical scheme:
A kind of induction type fluorescent lighting fixture; Have: power supply control module, induction control module, dimming controlling module and the light source portion that comprises at least one fluorescent lamp; Said power supply control module is accepted the electric power from power supply, and is that a high voltage direct current exports said dimming controlling module to this power conversions; Said induction control module generates an induced signal according to this outer signals when sensing outer signals, and this induced signal is reached said dimming controlling module; Said dimming controlling module when not receiving said induced signal to the less relatively High Level AC Voltage of said light source portion continuous output, thereby it is luminous to make said light source portion continue with less relatively brightness; When receiving said induced signal to the relatively large High Level AC Voltage of said light source portion continuous output, thereby it is luminous to make said light source portion continue with relatively large brightness.
Further, said dimming controlling module comprises oscillating circuit resonant circuit, and said oscillating circuit is not modulated into said high voltage direct current first high-voltage square-wave with first frequency and exports said resonant circuit to when receiving said induced signal; When receiving said induced signal, said high voltage direct current is modulated into second high-voltage square-wave with second frequency and exports said resonant circuit to; Said second frequency is than the resonance frequency of the more approaching said resonant circuit of said first frequency; Said resonant circuit is according to said first frequency or said second frequency; Produce resonance in various degree respectively with said first high-voltage square-wave or said second high-voltage square-wave, thereby export the High Level AC Voltage of different capacity to said light source portion respectively.
Further; Said oscillating circuit comprises: voltage signal generation circuit, chip for driving, half-bridge drive circuit, said voltage signal generation circuit do not continue to send first a constant voltage signal to said chip for driving when receiving said induced signal; When receiving said induced signal, continue to send second a constant voltage signal to said chip for driving, said chip for driving is sent the first low pressure square wave with said first frequency to said half-bridge drive circuit when receiving said first voltage signal; When receiving said second voltage signal, send the second low pressure square wave with said second frequency to said half-bridge drive circuit, said half-bridge drive circuit is modulated into said first high-voltage square-wave with said high voltage direct current when receiving the said first low pressure square wave; When receiving the said second low pressure square wave, said high voltage direct current is modulated into said second high-voltage square-wave.
Further; Said chip for driving comprises that ability changes the voltage controlled oscillator of frequency of the low pressure square wave of said chip for driving output according to the size of the voltage signal that receives, and said voltage signal generation circuit also comprises the regulating circuit of the size that is used to regulate said first voltage signal.
Further, said second frequency is identical with the resonance frequency of said resonant circuit.
Further, said induction control module possesses sensor circuit, and this sensor circuit comprises transducer, and this transducer is infrared sensor or sonic transducer, and when said transducer was infrared sensor, said outer signals was the infrared radiation signal that human body is emitted; When said transducer was sonic transducer, said outer signals was an acoustic signals.
Further, said induction control module also possesses light-operated circuit, when said light-operated circuit is sensed extraneous brightness greater than a preset brightness value, the induced signal output of said sensor circuit blocked; When said light-operated circuit is sensed extraneous brightness less than a preset brightness value, remove blockade to the induced signal output of said sensor circuit.
Further, said sensor circuit also has a delay circuit, makes said sensor circuit in the certain hour after said outer signals disappears, still to keep said induced signal.
Further, said power supply control module comprises ac-dc converter circuit and circuit of power factor correction.
Further, said power supply control module also comprises reduction voltage circuit, will be that low-voltage DC exports said induction control module to from the said power conversions of power supply.
The induction type fluorescent lighting fixture of implementing according to the present invention judges whether the needs illumination through having or not of induction outer signals.When needs throw light on, improve brightness, thereby satisfy lighting demand; When need not to throw light on, then reduce brightness.So, can not only produce good energy-saving effect, but also significantly reduce the switch number of times of fluorescent lamp, thereby can prolong the useful life of fluorescent lighting fixture.
Description of drawings
Fig. 1 is the module map of the induction type fluorescent lighting fixture of embodiment 1;
Fig. 2 is the circuit diagram of power supply control module of the induction type fluorescent lighting fixture of embodiment 1;
Fig. 3 is the circuit diagram of reduction voltage circuit of the induction type fluorescent lighting fixture of embodiment 1;
Fig. 4 is the circuit diagram of induction control module of the induction type fluorescent lighting fixture of embodiment 1;
Fig. 5 is dimming controlling module and the circuit diagram of light source of the induction type fluorescent lighting fixture of embodiment 1;
Fig. 6 is the circuit diagram of power supply control module of the induction type fluorescent lighting fixture of embodiment 2.
Wherein: 1, power supply; 2, fluorescent lamp; 10, power supply control module; 11, ac-dc converter circuit; 12, circuit of power factor correction; 13, reduction voltage circuit; 20, induction control module; 21, sensor circuit; 22, light-operated circuit; 23, delay circuit; 30, dimming controlling module; 31, oscillating circuit; 32, resonant circuit; 33, voltage signal generation circuit; 35, half-bridge control module; 40, light source portion; 50, emergent control module; 51, storage battery; 52, charge protector; 53, discharge protection circuit; 54, outage decision circuitry; 55, emergency signal generation circuit; 56, booster circuit.
Embodiment
Below in conjunction with specific embodiment, the present invention is described further.Should be understood that following examples only are used to the present invention is described but not are used to limit scope of the present invention.
Embodiment 1:
Accompanying drawing 1 is the module map of the induction type fluorescent lighting fixture of embodiment 1, and accompanying drawing 2-5 is the circuit diagram of the induction type fluorescent lighting fixture of embodiment 1.
Shown in accompanying drawing 1, mainly the comprising of the induction type fluorescent lighting fixture of present embodiment: the power supply control module 10 that receives power supply 1 power supply; Thereby the induction outer signals generates the induction control module 20 of induced signal; Regulate the dimming controlling module 30 of the brightness of light source portion 40 according to the induced signal that receives; And the light source portion 40 that constitutes by fluorescent lamp 2.
Wherein, the circuit structure of power supply control module 10 is shown in accompanying drawing 2, and power supply 1 is the civil power of 220V, goes into through L, N termination, and process fuse F1 is to low pass filter then.Thereafter diode D2, D3, D4, D5 and capacitor C 4 have constituted an ac-dc converter circuit 11, the civil power of 220V are converted into the direct current of 310V.Subsequently, this direct current is through circuit of power factor correction 12, and the high voltage direct current of a stable 400V of output, this high voltage direct current directly give dimming controlling module 30 power supplies.The effect of circuit of power factor correction 12 is the power conversion efficiencies that improve light fixture.If power factor is low excessively, then power supply unit is not fully utilized, and can cause huge waste.And can cause supply line overheated.
Simultaneously, shown in accompanying drawing 3, the high voltage direct current of output is also through a reduction voltage circuit 13, thereby is converted into the low-voltage DC of the 5V that is suitable for responding to control module 20, gives the induction control module 20 power supplies.
Next, the structure in conjunction with 4 pairs of inductions of accompanying drawing 1 and accompanying drawing control module 20 describes.
Shown in accompanying drawing 1, induction control module 20 is made up of sensor circuit 21, light-operated circuit 22, delay circuit 23, and its effect is to generate induced signal through the induction outer signals, and this induced signal is sent to dimming controlling module 30.Wherein, sensor circuit 21 is used for having judged whether pedestrian's process through the induction outer signals, and generates induced signal in view of the above.Light-operated circuit 22 is used to respond to extraneous light intensity, if extraneous light intensity a little less than, then allow sensor circuit 21 that the induced signal that generates is sent to switch module, otherwise then no matter whether sensor circuit 21 has sensed infrared signal, does not export induced signal.The effect of delay circuit 23 is to make induction control module 20 respond under the situation less than infrared signal at sensor circuit 21, still continues in the certain hour to generate and the output induced signal.
The circuit structure of the induction control module 20 in the present embodiment is shown in accompanying drawing 4.Sensor circuit 21 comprises an infrared sensor PIR1 and a control chip U2.Infrared sensor PIR1 in the present embodiment is a pyroelectric sensor, is used for responding to extraneous infrared signal.If receive belong to that human body discharges infrared radiation (wavelength is about 10 microns) signal, then from 2 pin that are about the micro voltage signal of 250mV to control chip U2 of S end output.Control chip U2 amplifies this micro voltage signal, generates the induced signal about 5V, and " light modulation " end from accompanying drawing 4,5 exports dimming controlling module to.
Control chip U2 is built-in with two-level operating amplifier, and the micro voltage signal that infrared sensor PIR1 is sent amplifies.But in amplification process,, be easy to take place misoperation owing to there is noise jamming.Particularly the susceptibility of infrared sensor PIR1 is high more, and clutter is many more, disturbs big more.Therefore, the output of operational amplifier is provided with a misoperation and prevents circuit in the second level, is provided with a capacitor C 21 in this circuit, plays filter action, interference signal is filtered out, thereby the computing amplifying signal that guarantees output is reliable.In addition, misoperation prevents that the capacitor C 21 in the circuit also can be changed to elements such as inductance, all can as long as possess filter action.
Simultaneously, induction control module 20 also possesses a light-operated circuit 22, and these light-operated circuit 22 1 ends and control chip U2 receive the input voltage of 5V equally, and other end ground connection is equivalent to parallelly connected with control chip U2.And this light-operated circuit 22 also is connected to 9 pin of control chip U2 with current constant mode.The photo resistance RG.1 that on this light-operated circuit 22, connected, extraneous brightness is high more, and the resistance value of this photo resistance is more little.If extraneous brightness is very high; The resistance of photo resistance RG1 is very little, and then the voltage of light-operated circuit 22 is very little, is equivalent to the ground connection zero potential; Then parallelly connected with it control chip U2 also is equivalent to zero potential; Its 11 pin is closed, even infrared sensor PIR1 has sensed infrared signal, control chip U2 also can't export induced signal.Otherwise dark if extraneous brightness is changeed, the resistance of photo resistance RG1 increases, and then voltage also increases thereupon, removes the blockade to 11 pin of control chip U2, and control chip U2 can generate and export induced signal according to the induction result of infrared sensor PIR1.The simple infrared induction that adopts just can realize only the pedestrian being arranged through the bright lamp of out-of-date, thus saves energy; Further infrared induction is combined with light-operated, then lighting-off by day automatically is more energy-conservation.What the sensor circuit 21 in the present embodiment adopted is infrared sensor, and also replaceable is sonic transducer etc.
In addition, delay circuit 25 is made up of an oscillating circuit, and its effect is to make induction control module 20 respond under the situation less than infrared signal in infrared sensor PI resistance R, still continues in the certain hour to generate and the output induced signal.So, fluorescent lamp 2 just is unlikely to the pedestrian just through just extinguishing suddenly, and is humanized.
Dimming controlling module 30 is key components that the present invention is achieved.Shown in accompanying drawing 1; Dimming controlling module 30 comprises 32 two parts of oscillating circuit 31 resonant circuit, and oscillating circuit 31 further has chip for driving U3 and one that a voltage signal generation circuit 33, one possess voltage controlled oscillator by driving the half-bridge drive circuit 35 that half-bridge Q11 and Q12 constitute.
Shown in accompanying drawing 5, the high voltage direct current of 400V is given the 1 pin power supply of chip for driving U3 through resistance R 38, resistance R 39 and resistance R 40; Simultaneously also to driving half-bridge Q11 and Q12 power supply.
Voltage signal generation circuit 33 comprises the resistance R 42 and resistance R 43 of mutual series connection.When not receiving the induced signal of self-induction control module 20, only press to first voltage signal of the about 0.3V of the lasting output of 3 pin of chip for driving U3 through the branch of resistance R 42 and resistance R 43; When " light modulation " termination has been received the induced signal that comes self-induction control module 20,, continue second voltage signal of an about 1.1V of output to 3 pin of chip for driving U3 through the dividing potential drop once more of resistance R 42 and resistance R 43.Therefore, when receiving induced signal and not receiving induced signal, the current potential of 3 pin is different.
Chip for driving U3 starts working after power supply, alternately exports square wave from 5 pin and 8 pin.When being high potential such as 5 pin, 8 pin are electronegative potentials; When 5 pin became electronegative potential, then 8 pin became high potential.5 pin and 8 pin alternate drive half-bridge Q11 respectively when high potential, Q12 makes to drive half-bridge Q11, and Q12 also is synchronous alternate conduction, at this moment, have formed the 400V high-voltage square-wave with same frequency at 6 pin of chip for driving U3.That is, half-bridge drive circuit 35 is according to from 5 pin of chip for driving U3 and the 8 pin square wave frequency of output alternately, and the high voltage direct current of 400V has been modulated into the high-voltage square-wave with same frequency.
In chip for driving U3, have a voltage controlled oscillator not shown in the figures, it links to each other with 3 pin of chip for driving U3, and effect is the frequency of regulating the square wave that chip for driving U3 exported according to the change in voltage of 3 pin inputs.
In the present embodiment; When the voltage of 3 pin is 0.3V; When just not receiving induced signal, voltage controlled oscillator forms the frequency of a 60KHz, and is corresponding; 5 pin and 8 pin also can alternately be exported the first low pressure square wave of a 60KHz frequency each other, and then produce first high-voltage square-wave of a 400V high pressure, 60KHz frequency at 6 pin.
Otherwise; When receiving induced signal; When the voltage of 3 pin rose to 1.1V, voltage controlled oscillator formed the frequency of a 45KHz, and is corresponding; 5 pin and 8 pin also can alternately be exported the second low pressure square wave of a 45KHz frequency each other, and then produce second high-voltage square-wave of a 400V high pressure, 45KHz frequency at 6 pin.
First high-voltage square-wave or second high-voltage square-wave from 6 pin of chip for driving U3 are exported through the resonant circuit 32 that is made up of T4 and capacitor C 33, are converted into a High Level AC Voltage, are used for fluorescent lamp 2 power supplies to rated power 36W.
In this transfer process, first high-voltage square-wave or second high-voltage square-wave and resonant circuit 32 produce resonance in various degree respectively.The resonance degree is high more, and the power output of resonant circuit 32 is just high more.In the present embodiment, the resonance frequency of resonant circuit 32 is 45KHz, and this frequency is identical with second high-voltage square-wave, therefore can reach peak power output 36W, and corresponding, fluorescent lamp 2 is lighted fully, and brightness is the highest; Otherwise, when through 6 pin output be first high-voltage square-wave time, its frequency is 60KHz, away from resonance frequency, causes power output to descend, and is merely 1/4 of peak power output 36W, 9W just, thus, the brightness of fluorescent lamp descends, and reaches purpose of energy saving.
Further; Through the resistance R 42 in the regulation voltage signal generation circuit 33 and the resistance of resistance 43; Just can regulate the size of first voltage signal and second voltage signal respectively, thereby regulate the frequency of the second low pressure square wave of being exported, and then the resonance degree between change and the resonant circuit 32; The brightness of adjusting fluorescent lamp 2 that so just can be artificial, and this adjustment process can be linear.Such as, dim at ambient lighting, but still the dusk with certain visibility the maximum brightness of fluorescent lamp 2 is suitably turned down electrical energy saving; Then the frequency adjustment of the second low pressure square wave is become identical with the resonance frequency of resonant circuit 32 at night, make the brightness of fluorescent lamp 2 reach maximum, improve illuminating effect.
Embodiment 2:
Present embodiment is that the induction type fluorescent lighting fixture is applied in the situation in the emergency lighting system.This omitted to embodiment 1 in the description of identical structure.
Shown in accompanying drawing 6, the difference of present embodiment and embodiment 1 is that the induction type fluorescent lighting fixture not only receives the mains-supplied of 220V, can also accept the power supply from emergency power supply.This emergency power supply can be arranged on generator intracardiac in the fire-fighting of building or UPS, when the civil power power down, manually starts emergency power supply, carries out emergency service through L ' end; Can also be arranged on the inner storage battery 51 of induction type fluorescent lighting fixture, this storage battery 51 charges when the civil power normal power supply, when the civil power power down, then serves as interim power supply and supplies power.
In order to realize above-mentioned function of emergency illumination, in the induction type fluorescent lighting fixture, set up emergent control module 50.Should emergent control module 50 comprise a group storage battery 51 that constitutes by lithium battery; Charge protector 52 and discharge protection circuit 53 that storage battery 51 is played a protective role; The low-voltage DC of storage battery 51 supplies is converted to the booster circuit 56 of high voltage direct current; Judge the whether outage decision circuitry 54 of regular supply of civil power; And emergency signal generation circuit 55 that when the civil power power down, produces emergency signal.
Shown in accompanying drawing 6, the civil power of AC220V gets into T1 (being the EMI filter circuit) through L, N end, after 4 filtering of CBB capacitor C, gets into the outage decision circuitry of being made up of resistance R 11, resistance R 12 and triode Q8 54 again.
This outage decision circuitry 54 if the voltage of civil power is higher than a preset critical voltage value, then is judged as the civil power normal power supply by resistance R 11, resistance R 12 sampling civil powers, and triode Q8 ends.At this moment, the civil power of AC220V is through being converted into the high voltage direct current of about 310V behind the ac-dc converter circuit 11, and this high voltage direct current charges through 52 pairs of storage batterys 51 of charge protector, simultaneously to circuit of power factor correction 12 power supplies.
Charge protector 52 is made up of capacitor C 5, capacitor C 6, resistance R 2, resistance R 3, resistance R 4, resistance R 5, resistance R 6, triode Q1 and triode Q2.Voltage after the rectification is coupled to triode Q1 through capacitor C 5, earlier through resistance R 5, resistance R 6 and capacitor C 6 to ground, drag down the voltage of the node between resistance R 5 and the resistance R 6, make triode Q1 conducting.Electric current, is drawn high the voltage of the node between resistance R 3 and the resistance R 4 to ground through Q1, resistance R 2, resistance R 3, resistance R 4 at this moment, so just the lasting conducting of ability holding circuit.
When storage battery 51 is charged, also must high voltage direct current be converted into the low-voltage DC of about 5V earlier through reduction voltage circuit 13.Among the structure of this reduction voltage circuit 13 and the embodiment 1 is identical.5V low-voltage DC through step-down is also supplied power to follow-up inductive control circuit 20 simultaneously.
Can see three indicator lights that constitute by light-emitting diode in the accompanying drawing 6, be respectively: green light (GREEN), represent the induction type fluorescent lighting fixture to be under the normal lighting pattern by mains-supplied; On behalf of storage battery 51, red light (resistance R ED) charging; On behalf of fluorescent lighting fixture, amber light (YELLOW) be under the emergency lighting pattern.
When the input voltage of civil power is lower than preset value; Resistance R 11 reduces with the node place voltage of resistance R 12, triode Q8 conducting, and resistance R 13 rises with the voltage at resistance R 14 node places simultaneously; Triode Q7 conducting; The voltage at resistance R 15, triode Q6, triode Q7 node place descends, triode Q6 conducting, and storage battery 51 begins discharge.Here, the effect of diode D7 is to prevent that storage battery 51 from flowing backwards when discharge.
After storage battery 51 began discharge, voltage got into booster circuit 56 through triode Q5 and T2, and low-voltage DC will be risen to 310V, and deliver to circuit of power factor correction 12 through diode D13.Here, the effect of diode D10 is to prevent electric current backflow.Along with the discharge of storage battery 51, voltage will descend gradually, and resistance R 13 also can descend with the voltage at resistance R 14 node places.When the voltage at resistance R 13 and resistance R 14 node places drops to certain preset value; Triode Q7 ends, and the voltage at resistance R 15, triode Q6, triode Q7 node place will rise, and then triode Q6 ends; Make discharge finish, thereby play the over effect.
Simultaneously; When storage battery 51 discharges; Electric current also can pass through YELLOW light-emitting diode, resistance R 10 to ground, so, can produce an emergency signal at the node place of YELLOW light-emitting diode and resistance R 10; This emergency signal transmits through D9 and transfers " light modulation " end, and then is transferred into follow-up dimming controlling module 30.
This emergency signal is the voltage signal that is about 5V identical with induced signal, and it will override the induced signal that is produced by induction control module 20.After dimming controlling module 30 receives this emergency signal; Can produce and identical reaction when receiving induced signal; Just pass through the acting in conjunction of voltage controlled oscillator and half-bridge control circuit 35; Export second high-voltage square-wave from 6 pin of control chip U3, and then produce highly resonance, thereby make fluorescent lamp 2 continue to keep high brightness with resonant circuit 32.
Under this emergency lighting pattern, no matter to respond to control module 20 and whether send induced signal, dimming controlling module 30 all will continue to receive the emergency signal from emergency signal generation circuit 55, thereby keep the high brightness of fluorescent lamp 2.The emergency lighting pattern of this pressure high brightness is applicable to the lasting illumination under the unexpected storms occasions such as fire, earthquake, meets the fire-fighting requirement.
When the fire fighter opens subsequent use generator, from the voltage of L, N input AC220V, so transfer outside emergency power supply power supply to from storage battery power supply.Meanwhile L ' end has also obtained an emergency signal, and diode D1, resistance R 1 and diode D6 in the circuit 55 produce this emergency signal through taking place, and the emergency signal effect that role is produced with through storage battery 51 power supplies the time is identical.
Claims (10)
1. induction type fluorescent lighting fixture is characterized in that having: power supply control module, induction control module, dimming controlling module and the light source portion that comprises at least one fluorescent lamp,
Said power supply control module is accepted the electric power from power supply, and is that a high voltage direct current exports said dimming controlling module to this power conversions;
Said induction control module generates an induced signal according to this outer signals when sensing outer signals, and this induced signal is reached said dimming controlling module;
Said dimming controlling module when not receiving said induced signal to the less relatively High Level AC Voltage of said light source portion continuous output, thereby it is luminous to make said light source portion continue with less relatively brightness; When receiving said induced signal to the relatively large High Level AC Voltage of said light source portion continuous output, thereby it is luminous to make said light source portion continue with relatively large brightness.
2. induction type fluorescent lighting fixture according to claim 1 is characterized in that:
Said dimming controlling module comprises oscillating circuit resonant circuit,
Said oscillating circuit is not modulated into said high voltage direct current first high-voltage square-wave with first frequency and exports said resonant circuit to when receiving said induced signal; When receiving said induced signal, said high voltage direct current is modulated into second high-voltage square-wave with second frequency and exports said resonant circuit to, said second frequency than said first frequency more near the resonance frequency of said resonant circuit,
Said resonant circuit produces resonance in various degree according to said first frequency or said second frequency respectively with said first high-voltage square-wave or said second high-voltage square-wave, thereby exports the High Level AC Voltage of different capacity to said light source portion respectively.
3. induction type fluorescent lighting fixture according to claim 2 is characterized in that:
Said oscillating circuit comprises: voltage signal generation circuit, chip for driving, half-bridge drive circuit,
Said voltage signal generation circuit does not continue to send first a constant voltage signal to said chip for driving when receiving said induced signal; When receiving said induced signal, continue to send second a constant voltage signal to said chip for driving,
Said chip for driving is sent the first low pressure square wave with said first frequency to said half-bridge drive circuit when receiving said first voltage signal; When receiving said second voltage signal, send the second low pressure square wave with said second frequency to said half-bridge drive circuit,
Said half-bridge drive circuit is modulated into said first high-voltage square-wave with said high voltage direct current when receiving the said first low pressure square wave; When receiving the said second low pressure square wave, said high voltage direct current is modulated into said second high-voltage square-wave.
4. induction type fluorescent lighting fixture according to claim 3 is characterized in that:
Said chip for driving comprises that ability changes the voltage controlled oscillator of frequency of the low pressure square wave of said chip for driving output according to the size of the voltage signal that receives,
Said voltage signal generation circuit also comprises the regulating circuit of the size that is used to regulate said first voltage signal.
5. according to each described induction type fluorescent lighting fixture among the claim 2-4, it is characterized in that:
Said second frequency is identical with the resonance frequency of said resonant circuit.
6. according to each described induction type fluorescent lighting fixture among the claim 1-4, it is characterized in that:
Said induction control module possesses sensor circuit, and this sensor circuit comprises transducer, and this transducer is infrared sensor or sonic transducer,
When said transducer was infrared sensor, said outer signals was the infrared radiation signal that human body is emitted;
When said transducer was sonic transducer, said outer signals was an acoustic signals.
7. induction type fluorescent lighting fixture according to claim 6 is characterized in that:
Said induction control module also possesses light-operated circuit,
When said light-operated circuit is sensed extraneous brightness greater than a preset brightness value, the induced signal output of said sensor circuit is blocked;
When said light-operated circuit is sensed extraneous brightness less than a preset brightness value, remove blockade to the induced signal output of said sensor circuit.
8. induction type fluorescent lighting fixture according to claim 6 is characterized in that:
Said sensor circuit also has a delay circuit, makes said sensor circuit in the certain hour after said outer signals disappears, still to keep said induced signal.
9. according to each described induction type fluorescent lighting fixture among the claim 1-4, it is characterized in that:
Said power supply control module comprises ac-dc converter circuit and circuit of power factor correction.
10. induction type fluorescent lighting fixture according to claim 9 is characterized in that:
Said power supply control module also comprises reduction voltage circuit, will be that low-voltage DC exports said induction control module to from the said power conversions of power supply.
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| CN2010102897348A CN102413626A (en) | 2010-09-21 | 2010-09-21 | Induction-type fluorescent lamp |
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| CN2010102897348A CN102413626A (en) | 2010-09-21 | 2010-09-21 | Induction-type fluorescent lamp |
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| CN102413626A true CN102413626A (en) | 2012-04-11 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107027235A (en) * | 2017-06-21 | 2017-08-08 | 合肥木凡节能环保科技有限公司 | A kind of induction type fluorescent lamp |
| CN107333358A (en) * | 2017-08-10 | 2017-11-07 | 浙江生辉照明有限公司 | induction type bulb |
| CN110708816A (en) * | 2019-11-29 | 2020-01-17 | 怀化职业技术学院 | Induction lamp control equipment and system thereof |
| CN110798942A (en) * | 2019-11-29 | 2020-02-14 | 怀化职业技术学院 | Induction lamp control equipment and system thereof |
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| CN107333358B (en) * | 2017-08-10 | 2023-09-22 | 浙江生辉照明有限公司 | Induction type bulb |
| CN110708816A (en) * | 2019-11-29 | 2020-01-17 | 怀化职业技术学院 | Induction lamp control equipment and system thereof |
| CN110798942A (en) * | 2019-11-29 | 2020-02-14 | 怀化职业技术学院 | Induction lamp control equipment and system thereof |
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Application publication date: 20120411 |