CN102123548A - Brightness adjusting method and system of LED lamp - Google Patents
Brightness adjusting method and system of LED lamp Download PDFInfo
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- CN102123548A CN102123548A CN2010106148004A CN201010614800A CN102123548A CN 102123548 A CN102123548 A CN 102123548A CN 2010106148004 A CN2010106148004 A CN 2010106148004A CN 201010614800 A CN201010614800 A CN 201010614800A CN 102123548 A CN102123548 A CN 102123548A
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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
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The invention discloses a brightness adjusting method and system of an LED lamp. The system comprises a remote controller and an LED illumination circuit, wherein the LED illumination circuit comprises a power supply module, an LED lamp bank and a switch module; the power supply module is connected with AC (Alternating Current) input, one end of the LED lamp bank is connected with a power supply, and the other end of the LED lamp bank is connected with the switch module and is ground through the switch module; the power supply module is connected with the switch module and used for controlling on-off of the switch module; and the remote controller is wirelessly connected with the power supply module and used for sending a control instruction to adjust the output of the power supply module. The invention can be used for adjusting the brightness of the LED lamp without changing the color temperature of the LED lamp and ensure that the LED lamp always keeps unchanged color of emitted light under any brightness.
Description
Technical field
The present invention relates to a kind of LED lighting field, in particular a kind of LED lamp brightness adjusting method and system.
Background technology
Along with the LED technology rapid development, the performance of LED is greatly improved.The application of LED more and more widely, particularly at lighting field, very general of the application of LED.The LED lamp relates to the problem of brilliance control in the process of using, because the existing light modulation to the brightness of LED lamp of characteristic of circuit is by regulating the amplitude size of LED lamp input current.Though this brightness regulation can be regulated the brightness of LED lamp, thereby, the illumination color of LED lamp changed because changed the colour temperature that current amplitude can influence the LED lamp.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
The object of the present invention is to provide a kind of LED lamp brightness adjusting method and system, thereby be intended to solve the light regulating technology meeting of existing LED lamp because change the problem that current amplitude changes the colour temperature of LED.
Technical scheme of the present invention is as follows: a kind of LED lamp brightness adjusting method, and it may further comprise the steps:
S1: receive the light modulation instruction that remote controller sends, and whether discern this light modulation operational order be effectively, effectively then execution in step S2; Invalidly then do not respond light modulation instruction;
S2: dimming controlling module is resolved the light modulation instruction, if improve the duty ratio that illumination brightness then increases pulse current, if reduce the duty ratio that illumination brightness then reduces pulse current.
Described LED lamp brightness adjusting method, wherein, described increase or the method that reduces duty ratio are by the conducting of switch module or the time that ends on the control lighting circuit.
A kind of LED lamp brightness control system, wherein, comprise remote controller and LED lighting circuit, described LED lighting circuit comprises power module, LED lamp group and switch module, described power module connects the AC input, described LED lamp group one end connects power supply, the other end connects switch module, and by switch module ground connection; Described power module connects described switch module, is used for the break-make of control switch module; The described power module of described remote controller wireless connections, described remote controller are used to send control command to be regulated the output of described power module.
Described LED lamp brightness control system, wherein, described power module comprises AC/DC module, Receiver Module and microcontroller chip, and described AC/DC module connects the AC input, and described LED lamp group connects the output of described AC/DC module; Described Receiver Module connects described microcontroller chip, is used to receive the brightness adjustment control instruction that remote controller sends; Described microcontroller chip connects described AC/DC module, described microcontroller chip comprises code identification module and dimming controlling module, described code identification module connects Receiver Module and dimming controlling module, described dimming controlling module connects described switch module, and described code identification module is used to discern coding that Receiver Module receives the whether universal coding or the near absolute coding of pairing; Described dimming controlling module is used to respond control command.
Described LED lamp brightness control system, wherein, described switch module is a metal-oxide-semiconductor.
Described LED lamp brightness control system, wherein, the signal tranmitting frequency of described remote controller is 2.4GHz.
Described LED lamp brightness control system wherein, is provided with conducting or deadline that a timing module is used for the timing switch module in the described dimming controlling module.
Beneficial effect of the present invention: the present invention realizes the control of LED lamp brightness by the method for regulating impulse width, its benefit is the colour temperature that not only can regulate the brightness of LED lamp and can not change the LED lamp, makes the LED lamp no matter all can keep glow color can not change under what brightness.
Description of drawings
Fig. 1 is the system block diagram of LED lamp brightness regulation control circuit provided by the invention.
Fig. 2 is the concrete structure block diagram of LED lighting circuit provided by the invention.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, clear and definite, below develop simultaneously with reference to accompanying drawing that the present invention is described in more detail for embodiment.
Referring to Fig. 1, LED lamp brightness regulation control command is sent by remote controller in the LED lamp brightness control system provided by the invention, described system comprises remote controller and LED lighting circuit, described LED lighting circuit comprises power module, LED lamp group and switch module, described power module connects the AC input, described LED lamp group one end connects power supply, the other end connects switch module, by switch module ground connection; Described power module connects described switch module, is used for the break-make of control switch module.The described power module of described remote controller wireless connections, described remote controller can send control command the output of described power module is regulated.The shell of existing power supply all is a metal shell, therefore will consider the power of the penetration capacity of signal in the tranmitting frequency of selecting remote controller, and the frequency configuration of the radiofrequency signal that radiofrequency emitting module provided by the invention sends is 2.4GHz.And with broadcasting mode outwards send signal, have non-directional, the benefit that applicability is strong.
Referring to Fig. 2, described power module comprises AC/DC module, Receiver Module and microcontroller chip, and described AC/DC module connects the AC input, and described LED lamp group connects the output of described AC/DC module.Described Receiver Module connects described microcontroller chip, and described microcontroller chip connects described AC/DC module.Described microcontroller chip comprises code identification module and dimming controlling module, described code identification module connects Receiver Module and dimming controlling module, described dimming controlling module connects described switch module, and described Receiver Module is used to receive control command and the coding that remote controller sends; Described code identification module is used to discern coding that Receiver Module receives the whether universal coding or the near absolute coding of pairing, is then control command to be sent to dimming controlling module, otherwise control command is not sent to dimming controlling module; Described dimming controlling module is used for making the operation of control switch module break-make by changing the brightness that duty ratio changes the LED lamp according to control command.
Described remote controller is provided with the independent control button that can control all LED lamp group general controls buttons and one or one group LED lamp of control, when remote controller is when sending control command by the general controls button, the coding that described control command is carried is the coding that the promptly all LED power supplys of universal coding can both respond; When remote controller is when sending control command by independent control button, the coding that described control command is carried is that absolute coding promptly has only with remote controller and carried out the coding that the LED power supply of pairing can respond.The effect of described code identification module is exactly to be used for whether the entrained coding of identification control instruction is the absolute coding that universal coding or code identification module are stored, if then respond control command; If not then not responding any operation.
The control command of sending when remote controller is to be 75% of high-high brightness with LED lamp brightness regulation, the Receiver Module of power module receives control command and the coding that remote controller sends, and described code identification module judges whether this control command is to control this power module.If then control command is issued dimming controlling module, described dimming controlling module is according to the make-and-break time ratio of control command control switch module, and the duty ratio of LED lamp pulse electric current is adjusted into 75%.
LED lamp brightness adjusting method provided by the invention comprises step: S1: receive the light modulation instruction that remote controller sends, and whether discern this light modulation operational order be effectively, effectively then execution in step S2; Invalidly then do not respond light modulation instruction.
S2: dimming controlling module is resolved the light modulation instruction, if improve the duty ratio that illumination brightness then increases pulse current, if reduce the duty ratio that illumination brightness then reduces pulse current.
Now above-mentioned light-dimming method is further explained with specific embodiment, the current amplitude of existing LED lamp is 460mA, duty ratio is 60%, supposes that the stepping that remote controller carries out light modulation is 10%, and promptly the duty ratio of LED lamp current is 40%, 50%, 60%, 70%, 80% etc.After described dimming controlling module receives light modulation instruction, the light modulation instruction is resolved, obtain and to improve brightness or will reduce brightness and how many amplitudes of raising and reduction is.Described dimming controlling module realizes the control of duty ratio then according to the time ratio that how much resolves to the switch module break-make on the LED lamp group of light modulation amplitude by the ON time of control switch module.
For example the dimming controlling module light modulation instruction of resolving is for increasing by 20% with brightness, and current duty ratio is 60%, and the pulse current time cycle is t, and then timing is made as 0.8t is that time of switch module conducting is 0.8t to the time block in the dimming controlling module.Switch module described in the present embodiment is a metal-oxide-semiconductor.
The present invention is by the control of the method realization LED lamp brightness of regulating impulse width, and its benefit is the colour temperature that not only can regulate the brightness of LED lamp and can not change the LED lamp, makes the LED lamp no matter all can keep glow color can not change under what brightness.
Should be understood that application of the present invention is not limited to above-mentioned giving an example, for those of ordinary skills, can be improved according to the above description or conversion that all these improvement and conversion all should belong to the protection range of claims of the present invention.
Claims (7)
1. a LED lamp brightness adjusting method is characterized in that, may further comprise the steps:
S1: receive the light modulation instruction that remote controller sends, and whether discern this light modulation operational order be effectively, effectively then execution in step S2; Invalidly then do not respond light modulation instruction;
S2: dimming controlling module is resolved the light modulation instruction, if improve the duty ratio that illumination brightness then increases pulse current, if reduce the duty ratio that illumination brightness then reduces pulse current.
2. LED lamp brightness adjusting method according to claim 1 is characterized in that, described increase or the method that reduces duty ratio are by the conducting of switch module or the time that ends on the control lighting circuit.
3. LED lamp brightness control system, it is characterized in that, comprise remote controller and LED lighting circuit, described LED lighting circuit comprises power module, LED lamp group and switch module, described power module connects the AC input, described LED lamp group one end connects power supply, the other end connects switch module, and by switch module ground connection; Described power module connects described switch module, is used for the break-make of control switch module; The described power module of described remote controller wireless connections, described remote controller are used to send control command to be regulated the output of described power module.
4. LED lamp brightness control system according to claim 3, it is characterized in that, described power module comprises AC/DC module, Receiver Module and microcontroller chip, and described AC/DC module connects the AC input, and described LED lamp group connects the output of described AC/DC module; Described Receiver Module connects described microcontroller chip, is used to receive the brightness adjustment control instruction that remote controller sends; Described microcontroller chip connects described AC/DC module, described microcontroller chip comprises code identification module and dimming controlling module, described code identification module connects Receiver Module and dimming controlling module, described dimming controlling module connects described switch module, and described code identification module is used to discern coding that Receiver Module receives the whether universal coding or the near absolute coding of pairing; Described dimming controlling module is used to respond control command.
5. LED lamp brightness control system according to claim 3 is characterized in that described switch module is a metal-oxide-semiconductor.
6. LED lamp brightness control system according to claim 3 is characterized in that the signal tranmitting frequency of described remote controller is 2.4GHz.
7. LED lamp brightness control system according to claim 4 is characterized in that, is provided with conducting or deadline that a timing module is used for the timing switch module in the described dimming controlling module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010614800.4A CN102123548B (en) | 2010-12-30 | 2010-12-30 | Brightness adjusting method and system of LED lamp |
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| CN201010614800.4A CN102123548B (en) | 2010-12-30 | 2010-12-30 | Brightness adjusting method and system of LED lamp |
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| CN102123548A true CN102123548A (en) | 2011-07-13 |
| CN102123548B CN102123548B (en) | 2014-04-09 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102243854A (en) * | 2011-08-18 | 2011-11-16 | 深圳市华星光电技术有限公司 | LED (light emitting diode) backlight driving method, liquid crystal display device and LED backlight driving circuit |
| CN104507240A (en) * | 2015-01-13 | 2015-04-08 | 刘胜泉 | LED (light-emitting diode) lamp control device |
| CN106774531A (en) * | 2016-12-19 | 2017-05-31 | 广州市邦沃电子科技有限公司 | A kind of frequency conversion and segmented control LED UV solidification equipments and control method |
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| CN101321421A (en) * | 2008-07-02 | 2008-12-10 | 华振科技(深圳)有限公司 | Wireless remote control light modulation LED apparatus |
| CN101742766A (en) * | 2008-11-20 | 2010-06-16 | 深圳市桑达实业股份有限公司 | LED light dimming method and device |
| CN101841950A (en) * | 2009-12-29 | 2010-09-22 | 深圳市众明半导体照明有限公司 | LED driving power supply and LED light source |
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2010
- 2010-12-30 CN CN201010614800.4A patent/CN102123548B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101321421A (en) * | 2008-07-02 | 2008-12-10 | 华振科技(深圳)有限公司 | Wireless remote control light modulation LED apparatus |
| CN101742766A (en) * | 2008-11-20 | 2010-06-16 | 深圳市桑达实业股份有限公司 | LED light dimming method and device |
| CN101841950A (en) * | 2009-12-29 | 2010-09-22 | 深圳市众明半导体照明有限公司 | LED driving power supply and LED light source |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102243854A (en) * | 2011-08-18 | 2011-11-16 | 深圳市华星光电技术有限公司 | LED (light emitting diode) backlight driving method, liquid crystal display device and LED backlight driving circuit |
| US8686653B2 (en) | 2011-08-18 | 2014-04-01 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | LED backlight driving method, liquid crystal display device and LED backlight driving circuit |
| CN104507240A (en) * | 2015-01-13 | 2015-04-08 | 刘胜泉 | LED (light-emitting diode) lamp control device |
| CN106774531A (en) * | 2016-12-19 | 2017-05-31 | 广州市邦沃电子科技有限公司 | A kind of frequency conversion and segmented control LED UV solidification equipments and control method |
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| CN102123548B (en) | 2014-04-09 |
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Address after: 518110 Guangdong city of Shenzhen province Baoan District Guanlan Street Library pit Jingquan Industrial Park Applicant after: Shenzhen JingQuanHua Electronics Co., Ltd. Address before: 518110 Guangdong city of Shenzhen province Baoan District Guanlan Street Library pit Jingquan Industrial Park Applicant before: Shenzhen Jingquanhua Electronics Co., Ltd. |
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Effective date of registration: 20150415 Address after: 518110, Guangdong, Shenzhen Province, Longhua New District Guanlan street, Fu hang community, Si Li Road, Silicon Valley power third park, No. 130, A2 building, 3 floor, A surface Patentee after: Shenzhen Ou Bang Electronics Co., Ltd. Address before: 518110 Guangdong city of Shenzhen province Baoan District Guanlan Street Library pit Jingquan Industrial Park Patentee before: Shenzhen JingQuanHua Electronics Co., Ltd. |
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Effective date of registration: 20150825 Address after: 518110 Guangdong city of Shenzhen province Baoan District Guanlan Street Library pit Jingquan Industrial Park Patentee after: Shenzhen JingQuanHua Electronics Co., Ltd. Address before: 518110, Guangdong, Shenzhen Province, Longhua New District Guanlan street, Fu hang community, Si Li Road, Silicon Valley power third park, No. 130, A2 building, 3 floor, A surface Patentee before: Shenzhen Ou Bang Electronics Co., Ltd. |