CN107613602A - A kind of LED drive power power regulating system and its method - Google Patents
A kind of LED drive power power regulating system and its method Download PDFInfo
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- CN107613602A CN107613602A CN201710676980.0A CN201710676980A CN107613602A CN 107613602 A CN107613602 A CN 107613602A CN 201710676980 A CN201710676980 A CN 201710676980A CN 107613602 A CN107613602 A CN 107613602A
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000001186 cumulative effect Effects 0.000 claims abstract description 48
- 230000003750 conditioning effect Effects 0.000 claims abstract description 18
- 230000001276 controlling effect Effects 0.000 claims abstract description 4
- 238000012795 verification Methods 0.000 claims description 7
- 238000004321 preservation Methods 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 2
- 230000004913 activation Effects 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 230000004907 flux Effects 0.000 description 11
- 230000005611 electricity Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Classifications
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- 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]
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The present invention relates to LED drive power technical field, a kind of more particularly to driving power power regulating system and its method for compensation LED lamp light decay, including the LED driving power circuit modules being connected with the LED lamp, and for controlling the MCU control module of the LED driving powers circuit module power output；The MCU control module maintains MCU to preserve cumulative operation time power supply conditioning circuit module after including MCU power supplies conditioning module, MCU module, LED power control PWM conditioning modules and LED drive power power-off.The goal of the invention of the present invention is to provide a kind of power regulating system and its method for compensation LED lamp light decay, and technical scheme provided by the invention does not need artificial intervention regulation LED light decay, convenient, and saving energy consumption.
Description
Technical field
The present invention relates to LED drive power technical field, more particularly to a kind of driving power for compensation LED lamp light decay
Power regulating system and its method.
Background technology
At present there is the characteristic of decay, be also not reaching to the use of light fixture in LED lamp in operation regular hour, luminous flux
Life time, luminous flux, which has decayed to, does not meet some specific place lighting demands, it is necessary to change light fixture in advance, carries significantly
Cost is supplied.
The method that tradition solves the problem has two kinds, first, using the LED of higher luminous flux, even if meeting to reach
Life time, the demand of predetermined luminous flux also is compliant with after the logical decay of light, but energy consumption is larger, it is impossible to meet the target of energy-conservation；Its
Two, light is not inconsistent to a certain extent in optical attenuation and leads to demand, and artificial intervention adjusts the luminous flux of LED, and operation is very cumbersome.
The content of the invention
The goal of the invention of the present invention is to provide a kind of power regulating system for compensation LED lamp light decay and its side
Method, technical scheme provided by the invention does not need artificial intervention regulation LED light decay, convenient, and saves energy consumption.
In order to solve the above-mentioned technical problem, one aspect of the present invention provides a kind of power regulating system of LED drive power, its
It is characterised by：Including LED drive power and LED lamp；The LED that the LED drive power includes being connected with the LED lamp drives
Dynamic power circuitry module, and for controlling the MCU control module of the LED driving powers circuit module power output；
The LED driving powers circuit module includes input, output end and control terminal；The input is electrically connected with city
Connect, for receiving AC power input；The output end is connected with the LED lamp, for DC power output；The control
End is electrically connected with the MCU control module；
The MCU control module include MCU power supply conditioning module, MCU module, LED power control PWM conditioning modules and
MCU is maintained to preserve cumulative operation time power supply conditioning circuit module after LED drive power power-off.
Preferably, the MCU module includes power-down protection storage, for preserve LED bright light work the cumulative time and
Corresponding regulation power output value.
Preferably, MCU power supply conditioning module is included LED driving power circuits, for for the MCU control module
The DC voltage of work is provided.
Preferably, after LED power-off, maintain MCU to preserve cumulative operation time power supply after the LED drive power power-off and adjust
Manage circuit module and trigger the MCU control module storage cumulative operation time, and maintain the MCU control module normal work
Electric energy, it is ensured that storage is correct.
Another aspect of the present invention also provides a kind of power regulating method of LED drive power, comprises the following steps：
S1：Start；
S2：Search and read the last time effective cumulative operation time that memory preserves；
S3：Carry out the verification of storage value；
S4：When cumulative operation time is correctly effective, work(corresponding to the cumulative time section of memory is calculated or read out
Rate output valve simultaneously exports；
S5：Accumulated time computing；
S6：Detect whether that LED drive power powers off；
S7：If power-off, preserve and work as the secondary cumulative time into the non-memory easy to be lost of MCU module, do not examine
Measure, return to S5, carry out cumulative time computing.
Preferably, step S2 includes searching the cumulative time of last time preservation and verified, when verification is wrong to storing
Mistake, then read and close on interior three times, the nearest limited correct cumulative time.
Preferably, in step S7, after MCU control module detects power-off, carry out to closing the big mould of power consumption in MCU module
Block, carrying out preserving cumulative operation time while writing verification redundancy.
Therefore following beneficial effect can be reached using technical scheme provided by the invention：The present invention is according to LED
Bright light run time automatically adjust power, so as to ensure the luminous flux of LED after optical attenuation, still conform to it is pre-
The demand of fixed luminous flux.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, the present invention will be implemented below
The required accompanying drawing used is briefly described in the description of example or prior art.It should be evident that drawings in the following description
Only part of the embodiment of the invention, for those of ordinary skill in the art, is not paying creative labor
Under the premise of, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the modular structure schematic diagram of LED drive power of the embodiment of the present invention；
Fig. 2 is MCU control module schematic diagram of the embodiment of the present invention
Fig. 3 is present invention method flow chart.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes.Obviously, described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
At present for LED lamp luminous flux exist decay technical problem, Traditional solutions be using luminous flux compared with
High LED, but its cost is high；Or the luminous flux of artificial intervention regulation LED, but adjust cumbersome.
In order to solve the technical problem that LED lamp can not properly settle luminous flux and decay be present, Fig. 1, this implementation are referred to
On the one hand example, which provides, provides a kind of power regulating system of LED drive power, including LED drive power 101 and LED lamp 104,
Wherein LED drive power 101 includes LED driving powers circuit module 103, and for controlling LED driving power circuit modules
The MCU control module 102 of the control power of 103 power outputs.
Wherein LED driving powers circuit module 103 can be that traditional LED lamp has driving power circuit, and AC power is turned
Turn to the direct current supply of the power required for LED lamp 104, including input, output end and control terminal.Input is electrically connected with city
Connect, for receiving AC power input；Output end is connected with LED lamp 104, for DC power output；Control terminal is controlled with MCU
Molding block 102 is electrically connected with.
Wherein MCU control module 102 adjusts LED driving powers circuit module 103 according to light fixture cumulative operation time and exported
The power output at end, and then power is automatically adjusted with the effect of compensation LED lamp light decay, it is not necessary to artificial intervention is adjusted
Section, it is convenient, and save energy consumption.
In order to realize that the bright light run time according to LED automatically adjusts power, as shown in Fig. 2 MCU control module
102 include MCU power supplies conditioning module 205, MCU module 202, LED power control output conditioning module 203 and LED driving electricity
MCU is maintained to preserve cumulative operation time power supply conditioning circuit module 204 after the power-off of source.
Specifically, the resource requirement realized according to systemic-function, MCU module 202 can be 8 common 8-digit microcontrollers,
Can also be the single-chip microcomputer of performance more preferably 16 or 32, the power-down protection storage that MCU module 202 includes can be electricity
Erasable read-only memory EEPROM or flash storage, for preserving the LED lamp cumulative operation time set, and to LED
The performance number that power drives should export.
LED power control output conditioning module 203, by the data signal of the single-chip microcomputer of MCU module 202 nurse one's health PWM or
A/D signals, to meet the control signal class requirement of the reception of LED driving powers circuit 102.The output conditioning of MCU Power Controls
Module 203 is also included LED driving power circuits, for providing the DC voltage of work for MCU module 202.
Maintain MCU to preserve cumulative operation time power supply conditioning circuit module 204 after LED drive power power-off, on the one hand feel
Single-chip microcomputer in power down triggering MCU module 202 is answered to enter external interrupt, triggering MCU module 202 quick storage LED lamp adds up work
Make time to power down to preserve in memory；The electrochemical capacitor or tantalum electric capacity that the periphery of another aspect MCU module 202 uses are to preserve
Electricity, MCU is maintained to preserve the sequential time demand needed for cumulative operation time, it is ensured that storage is correct.
With reference to the power regulating system of above-mentioned LED drive power, the power that the present invention also provides a kind of LED drive power is adjusted
Section method, as shown in figure 3, comprising the following steps：
S1：Start 301；
S2：The last time effective cumulative operation time T and check value A that memory preserves is searched and read, is seen 302 in Fig. 2；
S3：Verification 303 is carried out, calculates the value A of cumulative time check value B and storage, if A is not equal to B return to step S2,
Search the effective accumulated operating time closed on；
S4：Calculate or read out power output value corresponding to the cumulative time section of the memory of MCU module 202 and export
304；
S5：Accumulated time computing 305, accept the accumulated time Tc of last time plus the timing statisticses resolution ratio 1min of computing or
The other predefined values of person；
S6：Detect whether LED drive power power-off 306；
S7：If it is detected preserve as secondary cumulative time Tc and check information to the non-easy to be lost of MCU module
In memory, wherein check information inspection proved recipe is legal, for example, CRC (CRC) or and examine etc., do not detect
S5 is then returned, carries out cumulative time computing.
Wherein before step S1 starts, be stored with the memory of MCU module 202 LED lamp 104 it is last or
The working time added up several times during normal use and operating power value.MCU module 202 is to effective cumulative operation time T
While preservation, check value A corresponding with the effective cumulative operation time T-phase, therefore each effectively accumulative work can be generated
Making the time all corresponds to a unique check value, and the last time of memory preservation is searched and read to MCU module 202 in step S2
Effective cumulative operation time T and check value A.
MCU module 202 verifies to effective cumulative operation time T of reading in step S3, first basis in checking procedure
Check value B corresponding with the effective cumulative operation time T-phase is calculated in the effective cumulative operation time T read, passes through ratio
The check value A obtained to check value B and reading memory, judges whether effective cumulative operation time T that reading obtains is correct.When
Verify storage it is wrong when, then return to read in correction S2 and close on interior three times, the nearest limited correct cumulative time.
After reading correctly effectively cumulative operation time T, calculate or read corresponding with time T into step S4
Power output value, in the process, MCU control module 102 according to light fixture cumulative operation time adjust LED driving power circuits
The power output of the output end of module 103, and then power is automatically adjusted with the effect of compensation LED lamp light decay, it is not necessary to
Artificial intervention is adjusted, convenient, and saves energy consumption.
During step S4 exports power output value corresponding with time T, the memory of MCU module 202 is to working as
The cumulative operation time and check information of secondary LED lamp are preserved.In step s 5, needed before above-mentioned data are preserved to work
Time carries out temporal calculation, and what step S7 was preserved is the numerical value that computing obtains in step S5.
Cumulative operation time and check information are preserved in the step s 7, its trigger condition preserved is LED lamp
End-of-job, therefore need to detect to whether LED lamp powers off before step S7, that is, whether detect LED drive power
Circut breaking be present, outage detection is carried out to LED drive power in step s 6.Power-off is detected, that is, triggers MCU module to working as
Secondary cumulative time Tc and check information are preserved, and complete whole control process.
Embodiments described above, the restriction to the technical scheme protection domain is not formed.It is any in above-mentioned implementation
Modifications, equivalent substitutions and improvements made within the spirit and principle of mode etc., should be included in the protection model of the technical scheme
Within enclosing.
Claims (7)
- A kind of 1. power regulating system of LED drive power, it is characterised in that：Including LED drive power and LED lamp；It is described LED drive power includes the LED driving power circuit modules being connected with the LED lamp, and for controlling the LED to drive The MCU control module of power circuitry module power output；The LED driving powers circuit module includes input, output end and control terminal；The input electrically connects with city, uses Inputted in receiving AC power；The output end is connected with the LED lamp, for DC power output；The control terminal with The MCU control module is electrically connected with；The MCU control module includes MCU power supplies conditioning module, MCU module, LED power control PWM conditioning modules and LED MCU is maintained to preserve cumulative operation time power supply conditioning circuit module after driving power power-off.
- A kind of 2. power regulating system of LED drive power according to claim 1, it is characterised in that：The MCU module Including power-down protection storage, for preserving LED bright light work cumulative time and corresponding regulation power output value.
- A kind of 3. power regulating system of LED drive power according to claim 2, it is characterised in that：The MCU power supplies Conditioning module is included LED driving power circuits, for providing the DC voltage of work for the MCU control module.
- A kind of 4. power regulating system of LED drive power according to claim 3, it is characterised in that：Powered off in LED Afterwards, maintain MCU to preserve cumulative operation time power supply conditioning circuit module after the LED drive power power-off and trigger the MCU controls Molding block stores cumulative operation time, and maintains the MCU control module normal work electric energy.
- A kind of 5. power regulating method of LED drive power, it is characterised in that：Comprise the following steps：S1：Start；S2：Search and read the last time effective cumulative operation time that memory preserves；S3：Carry out the verification of storage value；S4：When cumulative operation time is correctly effective, it is defeated to calculate or read out power corresponding to the cumulative time section of memory Go out value and export；S5：Accumulated time computing；S6：Detect whether that LED drive power powers off；S7：If power-off, preserve and work as the secondary cumulative time into the non-memory easy to be lost of MCU module, do not detect S5 is then returned, carries out cumulative time computing.
- 6. a kind of power regulating method of LED drive power according to claim 5, step S2 includes searching last time Preservation cumulative time is simultaneously verified, it is characterised in that：When verification is to when storing wrong, then reading closes on interior three times, The nearest limited correct cumulative time.
- A kind of 7. power regulating method of LED drive power according to claim 6, it is characterised in that：Step S7 In, after MCU control module detects power-off, carry out to closing the big module of power consumption in MCU module, when carrying out preservation cumulative activation Between simultaneously write verification redundancy.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710676980.0A CN107613602A (en) | 2017-08-09 | 2017-08-09 | A kind of LED drive power power regulating system and its method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710676980.0A CN107613602A (en) | 2017-08-09 | 2017-08-09 | A kind of LED drive power power regulating system and its method |
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| CN107613602A true CN107613602A (en) | 2018-01-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111045281A (en) * | 2018-10-12 | 2020-04-21 | 无锡视美乐激光显示科技有限公司 | Brightness attenuation compensation method, device, laser projector and storage medium |
| CN111045282A (en) * | 2018-10-12 | 2020-04-21 | 无锡视美乐激光显示科技有限公司 | Display control method, projection apparatus, control device, and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102244960A (en) * | 2011-05-31 | 2011-11-16 | 杨敏 | LED (light-emitting diode) lamp with automatic optical attenuation compensation function and automatic optical attenuation compensation method |
| CN206149568U (en) * | 2016-10-21 | 2017-05-03 | 苏州腾华能源科技有限公司 | LED street lamp with light decay compensation function |
| CN207219098U (en) * | 2017-08-09 | 2018-04-10 | 惠州市华阳光电技术有限公司 | A kind of LED drive power power regulating system |
-
2017
- 2017-08-09 CN CN201710676980.0A patent/CN107613602A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102244960A (en) * | 2011-05-31 | 2011-11-16 | 杨敏 | LED (light-emitting diode) lamp with automatic optical attenuation compensation function and automatic optical attenuation compensation method |
| CN206149568U (en) * | 2016-10-21 | 2017-05-03 | 苏州腾华能源科技有限公司 | LED street lamp with light decay compensation function |
| CN207219098U (en) * | 2017-08-09 | 2018-04-10 | 惠州市华阳光电技术有限公司 | A kind of LED drive power power regulating system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111045281A (en) * | 2018-10-12 | 2020-04-21 | 无锡视美乐激光显示科技有限公司 | Brightness attenuation compensation method, device, laser projector and storage medium |
| CN111045282A (en) * | 2018-10-12 | 2020-04-21 | 无锡视美乐激光显示科技有限公司 | Display control method, projection apparatus, control device, and storage medium |
| CN111045281B (en) * | 2018-10-12 | 2021-06-22 | 无锡视美乐激光显示科技有限公司 | Brightness attenuation compensation method, device, laser projector and storage medium |
| CN111045282B (en) * | 2018-10-12 | 2022-02-01 | 无锡视美乐激光显示科技有限公司 | Display control method, projection apparatus, control device, and storage medium |
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Inventor after: Chen Diefeng Inventor after: Zhu Shizeng Inventor before: Chen Diefeng |
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