CN105813273B - The method, apparatus and lighting apparatus of a kind of anti-lamp group over-voltage and under-voltage work - Google Patents
The method, apparatus and lighting apparatus of a kind of anti-lamp group over-voltage and under-voltage work Download PDFInfo
- Publication number
- CN105813273B CN105813273B CN201610316697.2A CN201610316697A CN105813273B CN 105813273 B CN105813273 B CN 105813273B CN 201610316697 A CN201610316697 A CN 201610316697A CN 105813273 B CN105813273 B CN 105813273B
- Authority
- CN
- China
- Prior art keywords
- voltage
- lamp group
- power supply
- under
- resistance
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000005611 electricity Effects 0.000 claims description 15
- 239000003990 capacitor Substances 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 8
- 238000005070 sampling Methods 0.000 claims description 4
- 230000003321 amplification Effects 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 241001465382 Physalis alkekengi Species 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 208000025274 Lightning injury Diseases 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The present invention provides the method, apparatus and lighting apparatus of a kind of anti-lamp group over-voltage and under-voltage work, wherein the method includes the voltage signals that digital sample obtains the power supply powered to lamp group；Over-voltage and under-voltage judgement are carried out to the voltage signal: if voltage value the first preset duration of holding of the voltage signal is greater than the first preset value, or the voltage value of the voltage signal keep the second preset duration less than the second preset value, then controlling and disconnecting the power supply is that the lamp group is powered；If the voltage value of the voltage signal is kept for being more than or equal to the second preset value and being less than or equal to the first preset value for third preset duration; it then controls and connects the power supply as lamp group power supply; can be when there is under-voltage or overpressure situation in the above method provided through the invention; effectively disconnecting power supply is that lamp group is powered, so that effective protection lamp group avoids over-voltage or under-voltage to damage caused by lamp group.
Description
Technical field
The present invention relates to lighting control technique field, more particularly to a kind of method of anti-lamp group over-voltage and under-voltage work,
Device and lighting apparatus.
Background technique
With the rapid development of lighting area, the high-power illumination light fixtures such as LED street lamp, LED tunnel lamp, LED plant lamp are
It is widely used, nowadays LED energy-conserving product has obtained government and the approval and favor of user in the transformation of road lighting, greatly
The development of LED road lighting is promoted greatly.But it can be found that all in the actual use such as LED road lighting, LED industrial light
Multiple tracks road mains lighting supply practical application situation is pessimistic, and LED street lamp is installed outdoors, and lightning stroke is a very big danger, gently
Then LED street lamp is caused to be damaged, it is heavy then cause fire and casualties, huge loss is generated to social property；Industrial light
There can be the start and stop of super large motor device, very big voltage fluctuation is generated on power grid, often have more than the spike arteries and veins of 350V
Punching, LED lamp power supply is damaged.Failure product, which mostly occur in minefield, water, to be seen to the field exploring comprehensive analysis of LED power failure
Domain, is building factory, is building the places such as road at spaciousness.The damage of LED street lamp in city, predominantly Lightning Over-voltage.Due to lamps and lanterns
It is bad that earthing effect is installed, causes lightning protection effect poor, influences the normal work of power supply；Aerial lightning transmitting is a spectrum
Radio wave, overhead roads light and power supply line are good to receive antenna.This instantaneous differential mode disturbance volt is also reachable
To hundreds of volts to more than 3000 volts, this voltage often punctures the electric clearance of the power circuit of electronic equipment, can equally damage
Driving circuit.Therefore the lightning Protection Design of LED street lamp, is a system engineering, needs to set from power supply grid, system earth to electricity consumption
Standby wait carries out lightning Protection Design in all directions.
During old track remodelling LED road lighting, there are many engineering accidents, because of aging circuit, caused
Zero curve contact is bad, or disconnects.It floats high phenomenon thus there is phase voltage plus imbalance of three-phase voltage, goes out in Practical Project
The phase voltage for now crossing 300V or more causes sliver paths of LEDs street lamp to damage phenomenon；It is exactly that construction site is laid with cable there are also one kind
Too small, the phenomenon that causing terminal voltage too low, damage lamps and lanterns, practical to be directed to this engineering failure, only lightning protection function, is nothing
Method avoids lamps and lanterns from damaging, and lightning protection device can be to avoid instantaneous pulse high-voltage, and the pulse voltage time is very short.And how to provide
It is current those skilled in the art that a kind of solution long-time overvoltage, under-voltage and pulse surge voltage, which burn the method for load,
The problem overcome required for member.
Summary of the invention
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of anti-lamp group over-voltage and under-voltage works
The method, apparatus and lighting apparatus of work can not provide one kind for solving a tool lightning protection function in existing road lighting apparatus
Solve the problems, such as that long-time overvoltage, under-voltage and pulse surge voltage burn the method for load.
In order to achieve the above objects and other related objects, the present invention the following technical schemes are provided:
A kind of method of anti-lamp group over-voltage and under-voltage work, the method includes the steps: digital sample is obtained to lamp group and is supplied
The voltage signal of the power supply of electricity；Over-voltage and under-voltage judgement are carried out to the voltage signal: if the voltage value of the voltage signal is protected
Hold being less than for voltage value the second preset duration of holding for being greater than the first preset value or the voltage signal of the first preset duration
Second preset value then controls and disconnects the power supply as lamp group power supply；If the voltage value of the voltage signal keeps third pre-
If being more than or equal to the second preset value and being less than or equal to the first preset value for duration, then control and connect the power supply as lamp group confession
Electricity.By the above method power supply can be effectively disconnected for lamp group power supply, to effectively protect when there is under-voltage or overpressure situation
Shield lamp group avoids over-voltage or under-voltage to damage caused by lamp group.
In addition, described device includes: AD sampling the present invention also provides the device of a kind of anti-lamp group over-voltage and under-voltage work
Module obtains the voltage signal for the power supply powered to lamp group for digital sample；Control module, for the voltage signal into
Row over-voltage and under-voltage judgement: if the voltage value of the voltage signal keeps first preset value that is greater than of the first preset duration, or
The voltage value of the voltage signal keep the second preset duration less than the second preset value, then it is described for controlling and disconnecting the power supply
Lamp group power supply；If the voltage value of the voltage signal is kept for being more than or equal to the second preset value and being less than or equal to for third preset duration
First preset value then controls and connects the power supply as lamp group power supply.Above-mentioned apparatus under-voltage or over-voltage feelings can occurring
When condition, effectively disconnecting power supply is that lamp group is powered, so that effective protection lamp group avoids over-voltage or under-voltage to damage caused by lamp group.
It further include one for obtaining the power supply electricity of safety power supply voltage signal as the preferred embodiment of above-mentioned apparatus
Signal acquisition circuit unit is pressed, input is connected to the power supply, and output is connected to the AD sampling module.
As the preferred embodiment of above-mentioned apparatus, it includes sequentially connected that the power supply voltage signal, which obtains circuit unit,
Voltage conversion circuit, voltage amplifier circuit and current rectifying and wave filtering circuit.
As the preferred embodiment of above-mentioned apparatus, the voltage conversion circuit is by current-limiting resistance, first resistor and voltage
Mutual inductor is constituted, and the primary side of voltage transformer is connected on both ends of power, and current-limiting resistance is series at the positive incoming line of power supply
On, in the secondary side both ends of a voltage transformer first resistor in parallel.
Further, the voltage amplifier circuit can be by operational amplifier, second resistance, 3rd resistor and the 4th resistance
It constitutes, wherein the normal phase input end of operational amplifier is connected on the one end on secondary side of voltage transformer by second resistance, fortune
The inverting input terminal for calculating amplifier is connected on the secondary side other end of voltage transformer by 3rd resistor, in operational amplifier
The 4th resistance is also connected between inverting input terminal and output end, while operational amplifier is also attached to a working power and connects
Ground.
Further, the current rectifying and wave filtering circuit can be made of diode, the 5th resistance and capacitor, wherein diode
Anode is connected to the output end of operational amplifier, and the cathode of diode is sequentially connected one end of resistance and the anode of capacitor, and the 5th
The other end of resistance and the cathode of capacitor are grounded jointly.
Further, a voltage regulation resistance in parallel between the positive and described ground connection of the diode,
As the preferred embodiment of above-mentioned apparatus, the control module is a programmable logic controller (PLC).
Finally, the present invention also provides a kind of lighting apparatus, the dress including lamp group and above-mentioned anti-lamp group over-voltage and under-voltage work
It sets.
As described above, the invention has the following advantages: in actual life, the damage that is generated every year by lightning stroke, overvoltage
Fail to keep an appointment 200,000,000 RMB, and the progressive increase rate of illuminator annual 45%, loss will be huger, the present invention it is possible to prevente effectively from
The long-time overvoltage damage illuminator occurred in installation and use process or other load phenomenas；And severe building site supplies
Electric ultra low voltage damage illuminator or other load phenomenas；And actual use in occur lightning surge damage lamps and lanterns or its
His load phenomena joined a powerful firewall for illuminator or other loads；When overvoltage occurs, close
The output of supply voltage；After voltage restores normal, and automatic recovery of power supply, so as to effective protection illuminator, to reduce
The failure rate of illuminator, and property loss caused by failure can be effectively reduced.
Detailed description of the invention
Fig. 1 is the implementation flow chart of the method for a kind of anti-lamp group over-voltage of the invention and under-voltage work.
Fig. 2 is an implementation principle figure of the device of a kind of anti-lamp group over-voltage of the invention and under-voltage work.
Fig. 3 is another implementation principle figure of the device of a kind of anti-lamp group over-voltage of the invention and under-voltage work.
Fig. 4 is that power supply voltage signal obtains the circuit diagram of circuit unit in one embodiment in this hair.
Fig. 5 is the implementation principle that Fig. 4 power supply voltage signal obtains current-limiting resistance in voltage conversion circuit in circuit unit
Figure.
Fig. 6 is a kind of circuit diagram of switching circuit provided by the invention.
Fig. 7 is the another implementation principle figure of the device of a kind of anti-lamp group over-voltage of the invention and under-voltage work.
Drawing reference numeral explanation
The device of 100 anti-lamp group over-voltages and under-voltage work
110 power supply voltage signals obtain circuit unit
111 voltage conversion circuits
112 voltage amplifier circuits
113 current rectifying and wave filtering circuits
120 AD acquisition modules
130 control modules
S10~S40 step
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Other advantages and efficacy of the present invention can be easily understood for disclosed content.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints and application, without departing from
Various modifications or alterations are carried out under spirit of the invention.It should be noted that in the absence of conflict, following embodiment and implementation
Feature in example can be combined with each other.
It should be noted that illustrating the basic structure that only the invention is illustrated in a schematic way provided in following embodiment
Think, only shown in schema then with related component in the present invention rather than component count, shape and size when according to actual implementation
Draw, when actual implementation kenel, quantity and the ratio of each component can arbitrarily change for one kind, and its assembly layout kenel
It is likely more complexity.
Embodiment 1
The present embodiment will provide the method for a kind of anti-lamp group over-voltage and under-voltage work, as shown in Figure 1, below will be to this method
Specific implementation step or process be described in detail.
Step S10, digital sample obtain the voltage signal for the power supply powered to lamp group.
In specific implementation, lamp group just can work normally under the driving of power supply, but if be used for mentioning to lamp group
Voltage for the power supply of electric power is being more than certain voltage range or lower than certain voltage range, then may make to lamp group
At damage, this is that the present invention perhaps will overcome the problems, such as.In the prior art, often only with being provided with overvoltage protection, and not
The technology for being related to under-voltage protection considers.
In addition, obtain voltage signal by way of digital sample in this step S10, in order to subsequent step into
Row.It is directly to use because being in the prior art analog signal by the electric signal that the power supply that lamp group provides electric power exports
In the subsequent over-voltage of progress and under-voltage judgement.
Step S20 carries out over-voltage and under-voltage judgement to the voltage signal.
In this step, under-voltage and overpressure situation judgement is carried out simultaneously by providing lamp group the voltage signal of electric power,
The case where only carrying out over-voltage judgement compared to the prior art, the technical solution of the present embodiment is more reliable and more practicability,
Specifically judgment step includes:
Step S201 is held if voltage value the first preset duration of holding of the voltage signal is greater than the first preset value
Row step S30, this step S201 are over-voltage judgement, and unlike the prior art, this step is not to judge voltage signal
Voltage value just turn off when being more than a certain normal voltage value for lamp group power supply (i.e. execution step S30), but in power supply
Voltage signal is more than that safe voltage (i.e. the first preset value) certain time length (i.e. the first preset duration) is broken as lamp group confession again later
Electricity guarantees the use longevity of lamp group with this so as to avoid voltage lamp group in the case where extreme frequent changes from frequently disconnecting
The stability of life and work；
Step S202, if the voltage signal voltage value keep the second preset duration less than the second preset value, hold
Row step S30, this step S202 are under-voltage judgement, and similarly, this step is again provided with the second preset duration to guarantee that voltage is believed
Number occur it is of short duration under-voltage when and do not have to be broken as lamp group power supply, so as to avoid voltage in the case where extreme frequent changes
Lamp group frequently disconnects, and guarantees the service life of lamp group and the stability of work with this；
In specific implementation, step S201 and step S202 has been merely given as judging successful situation, in practice can be with
Can judgement failure, i.e., the voltage value of the described voltage signal be not able to maintain the first preset duration be greater than the first preset value or described
The voltage value of voltage signal be not able to maintain the second preset duration less than the second preset value, then illustrating that under-voltage and mistake is also not achieved
The case where pressure, therefore guarantee to work normally, it also returns to step S20 and continues to execute, or execution step S203 (after
Face is discussed in greater detail).
Step S203, if the voltage signal voltage value keep third preset duration be more than or equal to the second preset value and
Less than or equal to the first preset value, S40 is thened follow the steps, the recovery that this step is mainly used for voltage signal is worked normally or kept
The case where normal work；With the prior art the difference is that this step is not to connect immediately when voltage signal restores normal
It powers, but can just power after voltage signal restores to work normally to a period of time for lamp group for lamp group, can protect in this way
Card lamp group in voltage signal frequent changes does not have to accordingly frequently cut-off, to improve the stability and lamp group of lamp group work
Service life.
In specific implementation, there certainly exist judging results are as follows: it is pre- that the voltage value of the voltage signal is not able to maintain third
If duration is more than or equal to the second preset value and is less than or equal to the first preset value, at this point, being then likely to occur step S201 or step
Rapid S202 one of which situation, then what lamp group kept at this time is off-state, as long as therefore return step S20 continue judgement i.e.
It can；And if there is not the case where step S201 or step S202, the state being to turn on that lamp group is kept at this time, because
This, as long as also return step S20 continues judgement.Since such case is not that the present embodiment is of concern, therefore does not do here
It repeats.
It is to be appreciated that above-mentioned steps S201 has no stringent sequence requirement to the execution relationship between step S203,
Step S201, step S202, step S203 can be combined arrangement formed any one orderly execution relationship (such as: step
S201, step S203, step S202, step S202, step S201, step S203 etc.), it can also execute side by side simultaneously above-mentioned
Step S201, step S202, step S203.In specific implementation, general preferred embodiment be mutually execute step S201 and
Step S202 (the two, which arbitrarily can be executed successively, certainly also may be performed simultaneously), then step S203 is executed, because embodiment
Purpose is to detect over-voltage and under-voltage situation, take appropriate measures (i.e. step S30) when there is under-voltage and over-voltage, later
Step S20- step S203 is executed again, until voltage restores normal.
Step S30 is then controlled and is disconnected the power supply as lamp group power supply, and return step S10.
Step S40 is then controlled and is connected the power supply as lamp group power supply, and return step S10.
In specific implementation, the first preset value and the second preset value generally correspond to the maximum electricity of lamp group normal working voltage
Pressure value and minimum amount of voltage that, in other words, lamp group have the voltage range worked normally for it, provide if it is the lamp group
The voltage of the power supply of electric power has been more than the voltage range (including over-voltage and under-voltage), then lamp group there is the risk of damage.And the
One preset duration, the second preset duration and third preset duration can selected lamp group voltage endurance capability determine, generally, over-voltage is held
Continuous duration is smaller than under-voltage duration, for example, the first preset duration can be 100ms, and the second preset duration can be
500ms, in addition, third preset duration cannot be shorter than the first preset duration and the second preset duration, for example, third preset duration can
Think 500ms.
Embodiment 2
The present embodiment will provide a kind of dress of method for realizing lamp group over-voltage anti-in above-described embodiment 1 and under-voltage work
It sets, refers to Fig. 2, the present embodiment provides the devices 100 of a kind of anti-lamp group over-voltage and under-voltage work, including AD acquisition module 120
With control module 130, wherein AD acquisition module 120 obtains the voltage signal for the power supply powered to lamp group for digital sample；Control
Molding block 130 is used to carry out over-voltage and under-voltage judgement to the voltage signal: if the voltage value of the voltage signal keeps first
Preset duration keeps the pre- less than second of the second preset duration greater than the voltage value of the first preset value or the voltage signal
If value, then controls and disconnect the power supply as lamp group power supply；If the voltage value of the voltage signal keeps third preset duration
Be more than or equal to the second preset value and be less than or equal to the first preset value, then controlling and connecting the power supply is that the lamp group is powered.
In specific implementation, AD acquisition module 120 can be using ready-made A/D module integrated chip as the reality of implementation
Body, it is of course also possible to use entity of the AD circuit as implementation.
In specific implementation, control module 130 can be using programmable logic controller (PLC) as the entity of implementation, specifically
, such as single-chip microcontroller can be selected.It is to be appreciated that if being integrated with A/D module in itself in used single-chip microcontroller,
It can be by the A/D module as the implementation entity of AD acquisition module 120 in the present embodiment.
In specific implementation, the practical application entity of lamp group can be the outdoor illuminations such as street lamp, for the electricity of its power supply
Source is generally alternating current, such as the household electric or 380V commercial power of 220V.Therefore, directly plant-grid connection AD can not be acquired
Module 120 carries out direct digital signal acquiring, and needs to get safety power supply signal as process object.
Specifically, Fig. 3 is referred to, a power supply voltage signal can be set before AD acquisition module 120 and obtain circuit list
Member 110 obtains circuit unit 110 by the power supply voltage signal to be connected on power supply the supply voltage letter for obtaining a safety
Number.Specifically, goodbye Fig. 4, which obtains circuit unit 110 can be by sequentially connected voltage conversion circuit
111, voltage amplifier circuit 112 and current rectifying and wave filtering circuit 113 are realized to constitute, wherein voltage conversion circuit 111 is used for power supply
Signal is converted to safe voltage/current signal, and voltage amplifier circuit 112 is for safe voltage/current signal to be amplified to properly
Range in order to subsequent processing, and current rectifying and wave filtering circuit 113 is then for that will be safe voltage/current signal of AC signal
Switch to direct current signal, in order to subsequent processing.
More specifically, incorporated by reference to Fig. 4, voltage conversion circuit 111 can be realized by a voltage transformer 111b, more
Specifically, can be the voltage transformer of current mode, the primary (also referred to as primary side) of voltage transformer 111b be connected to power supply two
On end, wherein connect a current-limiting resistance 111a on the positive incoming line of power supply to make the volume of voltage transformer 111b primary
Constant current is A1, so that the secondary (also referred to as secondary side) in voltage transformer 111b generates a corresponding electric current A2.The tool of A1 and A2
Body size can be determined by the specified conversion ratio of selected voltage transformer 111b.
Further, Fig. 5 is referred to, above-mentioned current-limiting resistance 111a can be made up of two resistor coupled in parallel groups
Resistance R1 and resistance R2 parallel connection are formed first resistor parallel connection group, it is in parallel that resistance R3 and resistance R4 parallel connection are formed into second resistance
Group, then a wherein sys node wherein sys node for first resistor parallel connection group being connected in second resistance parallel connection group
On, to constitute a current-limiting resistance 111a.Larger resistance value electricity can be realized by the combination of the lesser resistance of resistance value in this way
The function of resistance, the more conducively selection of actual resistance device and resistance device on circuit boards integrated.Furthermore, it is possible to mutual in voltage
The one first resistor 111c of secondary side both ends parallel connection of sensor 111b converts the secondary current signal generated of voltage transformer 111b
For voltage signal.
Specifically, voltage amplifier circuit 112 can constitute an amplification by an operational amplifier 112c in conjunction with Fig. 4
Circuit is simultaneously coupled on voltage conversion circuit 111, is such as schemed, and the normal phase input end of operational amplifier 112c is used for by one
Matched second resistance 112a is connected on the one end on secondary side of voltage transformer 111b, the anti-phase input of operational amplifier 112c
End is connected to the secondary side other end of voltage transformer 111b by one for matched 3rd resistor 112b, in addition, in operation
One is also connected between the inverting input terminal and output end of amplifier 112c for deploying the 4th resistance 112d of magnification ratio, fortune
It calculates amplifier 112c and is also connected with a working power and ground connection, specifically, the working power can be the supply voltage of 5V.By upper
The mating connection for stating operational amplifier 112c and external devices may make up a standard amplifying circuit.
It, can be before the connect second resistance 112a of normal phase input end of operational amplifier 112c in preferred implementing circuit
One capacitor C1 of parallel connection between end and the front end inverting input terminal connect 3rd resistor 112b of operational amplifier 112c, and can be with
The one capacitor C2 of parallel connection between the output end and ground connection of operational amplifier 112c, for preventing outer signals from interfering.
Specifically, in conjunction with Fig. 4, current rectifying and wave filtering circuit 113 can be by a diode 113b, resistance 113b and capacitor 113d
It constitutes, wherein diode 113b anode is connected to output end (the i.e. output of operational amplifier 112c of voltage amplifier circuit 112
End), the cathode of diode 113b is sequentially connected one end of the 5th resistance 113c and the anode of capacitor 113d, and resistance 113b's is another
The cathode of one end and capacitor 113d are grounded (ground connection that i.e. above-mentioned operational amplifier 112c is connected) jointly, can by above structure
To realize rectification and filtering to the operational amplifier 112c voltage signal exported, so as to subsequent carry out digital sample.
In preferred implementing circuit, can also between the positive and described ground connection of diode 113b pressure stabilizing electricity in parallel
113a is hindered, amplifies exported voltage signal through operational amplifier 112c for stablizing.
By implementing circuit given by above-mentioned Fig. 4, safe supply voltage can be acquired directly from power supply
The power supply voltage signal is inputted in corresponding AD acquisition module 120 and control module 130 and is handled, that is, passes through AD by signal
Acquisition module 120 carries out digital sample and obtains the voltage signal of power supply, then is executed in above-described embodiment 1 by control module 130
Given method is exported control by control module 130 according to judging result to realize to power supply over-voltage and under-voltage judgement
Signal control power supply off/on processed is lamp group power supply.
Further, the control signal that control module 130 exports can lead to control power supply off/on as lamp group power supply
A switching circuit is crossed to realize.More specifically, it may refer to Fig. 6, switching circuit can pass through a photoelectrical coupler U1, three poles
Pipe Q1 and relay K1 is realized, i.e., photoelectrical coupler U1 input terminal is connected in control module 130, and by photoelectrical coupler
The output end of U1 is connected to the base terminal of triode Q1, and the control terminal of relay K1 is connected to the collector of triode Q1
(can specifically be determined according to selected triode-type), such control module 130 can export pwm pulse letter according to judging result
Number come trigger photoelectrical coupler U1 work, and then again trigger triode Q1 drive relay K1 it is open or closed switch come realize control
Power supply off/on processed is lamp group power supply.Since there are many type of switching circuit, it is above to circuit structure be only it is a kind of preferably
Embodiment, and by foregoing description be enough to make those skilled in the art understand that and the purpose of the present embodiment can be implemented, therefore not
It repeats again.
In specific implementation, Fig. 7 is referred to, a power module can also be set, by the way that power module is connected to power supply
On obtain one to convert and obtain the working power that circuit unit 110 works for the control module 130 and power supply voltage signal.
In specific implementation, setting a thunder-lightning can also be connected before power supply voltage signal obtains circuit unit 110
Road module, for preventing thunderstorm weather thunder and lightning from damaging to circuit.
In specific implementation, the device 100 of the anti-lamp group over-voltage of one of the present embodiment 2 and under-voltage work can be applied
Into outdoor lighting apparatus, such as street lamp, to realize the effective protection to existing street lamp.
In conclusion the present invention is it is possible to prevente effectively from the long-time overvoltage damage occurred in installation and use process is shone
The phenomenon that bright lamp tool or other loads；And the phenomenon that severe building site power supply ultra low voltage damage illuminator or other loads,
It joined a powerful firewall for illuminator or other loads, when overvoltage or under-voltage generation, Ke Yiyou
Effect closes the output of power source supplying voltage；After voltage restores normal, and automatic recovery of power supply, and when closing and replying power supply
The over-voltage working performance and under-voltage working performance for having fully considered lamp group itself in illuminator, can effectively improve making for lamp group
With the service life, the failure rate of illuminator is reduced, property loss is effectively reduced.So the present invention effectively overcomes in the prior art
Various shortcoming and have high industrial utilization value.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (7)
1. a kind of device of anti-lamp group over-voltage and under-voltage work, which is characterized in that the dress of anti-the lamp group over-voltage and under-voltage work
The method for realizing a kind of anti-lamp group over-voltage and under-voltage work is set,
The method includes the steps:
Step S10, digital sample obtain the voltage signal for the power supply powered to lamp group, and the power supply is alternating current or commercial power；
Step S20 carries out over-voltage and under-voltage judgement to the voltage signal:
Step S201 executes step if voltage value the first preset duration of holding of the voltage signal is greater than the first preset value
Rapid S30；
Step S202, the voltage value of the voltage signal keep the second preset duration less than the second preset value, then follow the steps
S30；
Step S203, if the voltage value of the voltage signal is kept for being more than or equal to the second preset value and being less than for third preset duration
Equal to the first preset value, S40 is thened follow the steps；
Step S30 is then controlled and is disconnected the power supply as lamp group power supply, and return step S10；
Step S40 is then controlled and is connected the power supply as lamp group power supply, and return step S10；
Described device includes:
AD sampling module, the voltage signal for the power supply powered to lamp group is obtained for digital sample, and the power supply is alternating current or work
Industry electricity consumption；
Control module, for carrying out over-voltage and under-voltage judgement to the voltage signal: if the voltage value of the voltage signal is kept
The voltage value for being greater than the first preset value or the voltage signal of first preset duration keep the second preset duration less than the
Two preset values then control and disconnect the power supply as lamp group power supply；If the voltage value of the voltage signal keeps third default
Being more than or equal to the second preset value and being less than or equal to the first preset value for duration, then control and connect the power supply as lamp group confession
Electricity；
Switching circuit is connected with the control module, described in the control signal control for being exported according to the control module
The off/on of the power supply of lamp group power supply；
The device of the anti-lamp group over-voltage and under-voltage work further includes one for obtaining the power supply electricity of safety power supply voltage signal
Signal acquisition circuit unit is pressed, input is connected to the power supply, and output is connected to the AD sampling module；
It includes sequentially connected voltage conversion circuit, voltage amplifier circuit and rectification that the power supply voltage signal, which obtains circuit unit,
Filter circuit.
2. the device of anti-lamp group over-voltage and under-voltage work according to claim 1, which is characterized in that the voltage conversion electricity
It routes current-limiting resistance (111a), first resistor (111c) and voltage transformer (111b) to constitute, the original of voltage transformer (111b)
While being connected on both ends of power, current-limiting resistance (111a) is series on the positive incoming line of power supply, in voltage transformer
The secondary side both ends of (111b) first resistor (111c) in parallel.
3. the device of anti-lamp group over-voltage and under-voltage work according to claim 2, which is characterized in that the voltage amplification electricity
Operational amplifier (112c), second resistance (112a), 3rd resistor (112b) and the 4th resistance (112d) is routed to constitute, wherein
The normal phase input end of operational amplifier (112c) is connected to the secondary side of voltage transformer (111b) by second resistance (112a)
On one end, the inverting input terminal of operational amplifier (112c) is connected to voltage transformer (111b) by 3rd resistor (112b)
On the secondary side other end, the 4th resistance is also connected between the inverting input terminal and output end of operational amplifier (112c)
(112d), while operational amplifier (112c) is also attached to a working power and ground connection.
4. the device of anti-lamp group over-voltage and under-voltage work according to claim 3, which is characterized in that the rectifying and wave-filtering electricity
It routes diode (113b), the 5th resistance (113c) and capacitor (113d) to constitute, wherein diode (113b) anode is connected to fortune
The output end of amplifier (112c) is calculated, the cathode of diode (113b) is sequentially connected one end and the capacitor of the 5th resistance (113c)
The anode of (113d), the other end of the 5th resistance (113b) and the cathode of capacitor (113d) are grounded jointly.
5. the device of anti-lamp group over-voltage and under-voltage work according to claim 4, which is characterized in that in the diode
A voltage regulation resistance (113a) in parallel between the positive and described ground connection of (113b).
6. the device of anti-lamp group over-voltage and under-voltage work according to claim 1, which is characterized in that the control module is
One programmable logic controller (PLC).
7. a kind of lighting apparatus, which is characterized in that including the described in any item anti-lamp group over-voltages of lamp group and the claims 1-6
With the device of under-voltage work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610316697.2A CN105813273B (en) | 2016-05-12 | 2016-05-12 | The method, apparatus and lighting apparatus of a kind of anti-lamp group over-voltage and under-voltage work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610316697.2A CN105813273B (en) | 2016-05-12 | 2016-05-12 | The method, apparatus and lighting apparatus of a kind of anti-lamp group over-voltage and under-voltage work |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105813273A CN105813273A (en) | 2016-07-27 |
| CN105813273B true CN105813273B (en) | 2019-06-18 |
Family
ID=56456805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610316697.2A Active CN105813273B (en) | 2016-05-12 | 2016-05-12 | The method, apparatus and lighting apparatus of a kind of anti-lamp group over-voltage and under-voltage work |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105813273B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114269047A (en) * | 2021-12-27 | 2022-04-01 | 苏州欧普照明有限公司 | Light emitting diode control method and device and lamp |
| CN117200826B (en) * | 2023-11-06 | 2024-03-05 | 唯捷创芯(天津)电子技术股份有限公司 | Overvoltage protection method for radio frequency front-end module and electronic equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101715265A (en) * | 2009-12-14 | 2010-05-26 | 海洋王照明科技股份有限公司 | LED driving power supply control circuit and LED lamp by using same |
| CN103763815A (en) * | 2013-12-28 | 2014-04-30 | 衡阳协成光电科技有限公司 | Double-high constant current type LED driving power source with multiple protection functions |
| CN203748048U (en) * | 2013-10-08 | 2014-07-30 | 吕大明 | Constant-power combined driver for LED lamp filament |
| CN203934041U (en) * | 2014-04-30 | 2014-11-05 | 深圳市晟碟半导体有限公司 | A kind of light fixture and LED drive unit thereof |
| CN104684176A (en) * | 2013-12-03 | 2015-06-03 | 深圳市海洋王照明工程有限公司 | Optical coupler feedback LED (light emitting diode) driving circuit and LED illuminating equipment |
| CN204652757U (en) * | 2015-06-09 | 2015-09-16 | 城光（湖南）节能环保服务股份有限公司 | A kind of input protection circuit of LED drive power |
| CN204906820U (en) * | 2015-09-07 | 2015-12-23 | 深圳市晟碟半导体有限公司 | Automatic constant current drive device and LED lamps and lanterns of balanced LED lamp cross luma degree |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4451376B2 (en) * | 2005-11-04 | 2010-04-14 | 株式会社小糸製作所 | Lighting control device for vehicle lamp |
| JP5449842B2 (en) * | 2009-04-23 | 2014-03-19 | 株式会社小糸製作所 | Lighting control device for vehicle lamp |
| JP5880823B2 (en) * | 2011-10-31 | 2016-03-09 | 東芝ライテック株式会社 | Power supply |
| JP2014002904A (en) * | 2012-06-18 | 2014-01-09 | Cyber Coin Kk | Fluorescent lamp type led illuminating device, and lighting and lighting-off mode switching method of the same |
| CN202772549U (en) * | 2012-07-19 | 2013-03-06 | 浙江泰华电器有限公司 | Protector integrated with open phase protection, phase sequence protection and overvoltage/undervoltage protections |
| TWI493844B (en) * | 2012-11-29 | 2015-07-21 | Power Forest Technology | Power converter control circuit |
| CN103043006B (en) * | 2012-12-20 | 2015-09-30 | 联合汽车电子有限公司 | The voltage control method of electrical control unit device |
| US20140265898A1 (en) * | 2013-03-15 | 2014-09-18 | Power Integrations, Inc. | Lossless preload for led driver with extended dimming |
| CN103295537A (en) * | 2013-05-08 | 2013-09-11 | 深圳市华星光电技术有限公司 | LED backlight driving circuit, backlight module and liquid crystal display device |
| CN103795025B (en) * | 2014-01-23 | 2017-01-04 | 重庆四联光电科技有限公司 | A kind of lightning protection overvoltage crowbar |
-
2016
- 2016-05-12 CN CN201610316697.2A patent/CN105813273B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101715265A (en) * | 2009-12-14 | 2010-05-26 | 海洋王照明科技股份有限公司 | LED driving power supply control circuit and LED lamp by using same |
| CN203748048U (en) * | 2013-10-08 | 2014-07-30 | 吕大明 | Constant-power combined driver for LED lamp filament |
| CN104684176A (en) * | 2013-12-03 | 2015-06-03 | 深圳市海洋王照明工程有限公司 | Optical coupler feedback LED (light emitting diode) driving circuit and LED illuminating equipment |
| CN103763815A (en) * | 2013-12-28 | 2014-04-30 | 衡阳协成光电科技有限公司 | Double-high constant current type LED driving power source with multiple protection functions |
| CN203934041U (en) * | 2014-04-30 | 2014-11-05 | 深圳市晟碟半导体有限公司 | A kind of light fixture and LED drive unit thereof |
| CN204652757U (en) * | 2015-06-09 | 2015-09-16 | 城光（湖南）节能环保服务股份有限公司 | A kind of input protection circuit of LED drive power |
| CN204906820U (en) * | 2015-09-07 | 2015-12-23 | 深圳市晟碟半导体有限公司 | Automatic constant current drive device and LED lamps and lanterns of balanced LED lamp cross luma degree |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105813273A (en) | 2016-07-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104659797B (en) | A kind of method that distribution low-pressure side intelligent electric power load three-phase imbalance is administered | |
| CN203761015U (en) | Electricity utilization protection circuit for students' dormitory | |
| CN104914293A (en) | Power failure detection circuit and power failure detection device | |
| CN102176797B (en) | Merged illumination and emergent light-emitting diode (LED) fluorescent lamp | |
| CN105813273B (en) | The method, apparatus and lighting apparatus of a kind of anti-lamp group over-voltage and under-voltage work | |
| CN204350378U (en) | A kind of LED of energy extinguish fast | |
| CN203933382U (en) | A kind of APFC of tape jam measuring ability | |
| CN103997199A (en) | Active power factor correction circuit with fault detection function | |
| CN103941618A (en) | Power-restoring-after-power-failure automatic delaying power distribution device | |
| CN203151087U (en) | Lightning-protection and energy-saving power transformer with non-harmful output power | |
| CN203387750U (en) | Over-voltage protection efficient LED street lamp power supply | |
| CN205583646U (en) | Earth leakage protection wall switch | |
| CN203872387U (en) | Power off non-stroboscopic second gear dimmable LED driving power supply | |
| CN206226771U (en) | A kind of device and lighting apparatus of the over-pressed and under-voltage work of anti-lamp group | |
| CN104528559A (en) | Tower crane system and tower crane rotation vortex flow controller | |
| CN215682711U (en) | Processing system for dealing with line leakage in direct-current lighting power supply | |
| CN204350389U (en) | A kind of LED drive power circuit | |
| CN107256056A (en) | The low-voltage circuit of power distribution cabinet | |
| CN203243017U (en) | Safety protection circuit of direct current remote power supply system | |
| CN104582185A (en) | LED driving power supply circuit | |
| CN202281825U (en) | Intelligent electric energy meter built-in load switch test circuit | |
| CN107995728B (en) | LED programmable drive power system based on wireless remote control | |
| CN108493902B (en) | A kind of self-protection circuit and system | |
| CN202282639U (en) | Integrated power supply | |
| CN204167866U (en) | The two-way out-of-limit detection protective circuit of line voltage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |