CN101784145A - Remote stepless dimming LED multi-path drive constant-current system and constant-current source - Google Patents

Remote stepless dimming LED multi-path drive constant-current system and constant-current source Download PDF

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Publication number
CN101784145A
CN101784145A CN200910304038A CN200910304038A CN101784145A CN 101784145 A CN101784145 A CN 101784145A CN 200910304038 A CN200910304038 A CN 200910304038A CN 200910304038 A CN200910304038 A CN 200910304038A CN 101784145 A CN101784145 A CN 101784145A
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China
Prior art keywords
led
constant
current
microprocessor
flow driver
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Pending
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CN200910304038A
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Chinese (zh)
Inventor
顾永德
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Shenzhen Moso Power Supply Technology Co Ltd
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Shenzhen Moso Power Supply Technology Co Ltd
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Priority to CN200910304038A priority Critical patent/CN101784145A/en
Publication of CN101784145A publication Critical patent/CN101784145A/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

The invention belongs to the technical field of computer control, which relates to a stepless dimming LED multi-path drive constant-current system which is remotely controlled by a computer and a stepless dimming LED multi-path drive constant-current source which is remotely controlled by the computer. The system comprises a remote control terminal, a constant-current source and N LEDs or N groups of LEDs, wherein the constant-current source comprises a network connection device, a microprocessor, a working power supply and N LED drivers. The N LED drivers drive the N LEDs or the N groups of LEDs, the remote control terminal transmits a control signal to the microprocessor by the network connection device, the microprocessor receives the control signal and controls the LED drivers to work, and the LED constant-current drivers regulate constant direct current obtained from the working power supply into current which is matched with the control signal and output to the LEDs. The invention not only can control the working state of each LED or each group of LEDs but also can obtain the timely working states of the N LEDs or the N groups of LEDs.

Description

Remote stepless dimming LED multi-path drive constant-current system and constant-current source
[technical field]
The invention belongs to the Computer Control Technology field, relate to a kind of by the stepless dimming LED (Light Emitting Diode) multipath drive constant current system of computer remote control and the stepless dimming LED multi-path driving constant-current source of controlling by computer remote.
[background technology]
In the last few years, development along with the semiconductor light emitting technology, the brightness and the colour developing ability of semiconductor light-emitting-diode (LED) are greatly improved, can satisfy the needs of street lighting, and the LED light fixture there are total solids, pollution-free, long working life and advantages such as caloric value is low, super low-power consumption, obvious energy conservation.Discover: the light fixture that utilizes LED to make, its brightness can be nearly three times of ordinary incandescent lamp, and power consumption only is about 1/10 of an ordinary incandescent lamp, and useful working life but is more than 100 times of ordinary incandescent lamp, so application prospect is very extensive.
LED is used as lighting, is not only because above-mentioned advantage also because its is conveniently controlled, is particularly suitable in the LED multi-path circuit different LED or LED group being controlled or regulating.
The technology that brightness is regulated to LED at present mainly contains three kinds: simulation light modulation, PWM light modulation and digital dimming.The simulation light modulation is by the resistance of adjusting serial or parallel connection resistance, changes the electric current by LED, thereby changes the brightness of LED.PWM (pulse-width modulation) dimming mode is a kind of simple numerical pulse that utilizes, and the light regulating technology of the led driver that opens the light repeatedly only need provide wide, narrow different digital type pulse, can realize changing output current simply, thereby regulates the brightness of LED.The advantage of PWM light modulation is high-quality cold light can be provided, and uses simply the efficient height.Ear can audible noise but the PWM dimming mode is easy to make led drive circuit generation people.
In large tunnel, particularly the manual maintenance lighting relatively the difficulty occasion, with LED effect lighting source, not only need can remote adjustment LED brightness and the ON/OFF of control LED, thereby regulate operating states such as the work brightness of LED or ON/OFF according to the variation of external environment light and shade, also need long-range operating state to follow the tracks of, thereby the operating state of LED is taken place under the unusual situation LED, can locate convenient for maintaining rapidly.
The patent No. is: the Chinese utility model patent of CN2783698Y discloses a kind of intelligent multi-channel LED light regulation device, mainly by PC control terminal, communication interface, LED light adjusting controller, running parameter ON/OFF assembly, address setting ON/OFF assembly, running parameter memory, photoisolator, power amplifier and working power is set and forms.During work, send work order, provide the parameter of controlling the work of LED light adjusting controller by communication interface by the PC control terminal, LED light adjusting controller control output PWM pwm voltage signal, thus regulate the brightness of controlling LED light.
In above-mentioned patent, owing to there is not sample circuit, so can't follow the tracks of also the have no way of finding out about it operating state of each LED lamp of remote computer to the operating state of each LED lamp.
In addition on the one hand, in foregoing invention, brightness that can only be by the whole LED of remote adjustment or control the ON/OFF of whole LED can't be controlled or regulate single led or single group LED.
[summary of the invention]
Purpose of the present invention is exactly in order to solve the problems of the technologies described above, and proposes a kind of stepless dimming LED (Light Emitting Diode) multipath drive constant current system by remote control terminal control.
Concrete technical scheme of the present invention is:
A kind of remote stepless dimming LED multi-path drive constant-current system, comprise: remote control terminal, network connection device, microprocessor, working power and LED constant-flow driver, described remote control terminal transmits control signal to microprocessor by network connection device, described microprocessor receives the work of described control signal control LED constant-flow driver, and described LED constant-flow driver will be adjusted to the electric current of exporting to LED that is complementary with control signal from the constant DC that working power is obtained.
Described remote control terminal comprises any computer on remote server, hand-held control appliance or the network.
Described network connection device is used for receiving and sending signal, and described signal comprises control signal or LED work state information.
Described working power comprises rectifying and pressure-regulating device, constant-current device and stable-pressure device, described rectifying and pressure-regulating device is transformed into low-voltage DC with High Level AC Voltage, described constant-current device is exported to the LED constant-flow driver with the direct current that described low-voltage DC is transformed into constant current, and described stable-pressure device is exported to microprocessor and network connection device with the direct current that described low-voltage DC is transformed into constant voltage.
This system also comprises:
Communication interface includes address information, and this communication interface is connected one to one with described LED constant-flow driver, and described LED constant-flow driver is connected one to one with described LED,
Device for addressing is used for searching out the pairing position of described LED by described address information;
This device for addressing is connected with described microprocessor, and described microprocessor searches out the LED that needs control by this device for addressing.
This system also comprises sample circuit, described sample circuit comprises sampling module and A/D modular converter, described sampling module is connected with described LED one to one by the A/D modular converter, described sampling module obtains LED operating current information by the A/D modular converter, this LED operating current information sends to device for addressing by communication interface, microprocessor obtains the work state information of LED operating current information analysis LED from described device for addressing, described LED work state information is sent to remote control terminal by network connection device.
This system also comprises memory, is used for store operational parameters information, and described microprocessor obtains described running parameter information and resolves to control signal, the work of control LED constant-flow driver.
This system also comprises photoelectrical coupler, and described photoelectrical coupler is connected between network connection device and the microprocessor.
Described LED constant-flow driver comprises led controller and power amplifier, described power amplifier is arranged between described led controller and the LED, be used to accept the control signal of described led controller, described led controller and microprocessor are electrically connected, and are used to receive microprocessor control signal.
Described LED constant-flow driver is the constant-flow driver of LED digital dimming mode.
The present invention also provides a kind of stepless dimming LED (Light Emitting Diode) multipath drive constant current source by remote control terminal control, comprise network connection device, microprocessor, working power and LED constant-flow driver, described network connection device obtains the control signal of remote control terminal input, described microprocessor receives the work of described control signal control LED constant-flow driver, and described LED constant-flow driver will be adjusted to the electric current of exporting to LED that is complementary with control signal from the constant DC that working power is obtained.
This constant-current source also comprises:
Communication interface includes address information, and this communication interface is connected one to one with described LED constant-flow driver, and described LED constant-flow driver is connected one to one with described LED,
Described communication interface is obtained the constant DC work of described stable-pressure device input;
Device for addressing is used for searching out the pairing position of described LED by described address information;
This device for addressing is connected with described microprocessor, and described microprocessor searches out the LED that needs control by this device for addressing.
This constant-current source also comprises sample circuit, described sample circuit comprises sampling module and A/D modular converter, described sampling module is connected with described LED one to one by the A/D modular converter, described sampling module obtains LED operating current information by the A/D modular converter, described LED operating current information sends to device for addressing by communication interface, microprocessor obtains the work state information of LED operating current information analysis LED from described device for addressing, described LED work state information is sent to remote control terminal by network connection device.
This constant-current source also comprises memory, is used for store operational parameters information, and described microprocessor obtains described running parameter information and resolves to control signal, the work of control LED constant-flow driver.
This constant-current source also comprises photoelectrical coupler, and described photoelectrical coupler is connected between network connection device and the microprocessor.
Described LED constant-flow driver comprises led controller and power amplifier, described power amplifier is arranged between described led controller and the LED, be used to accept the control signal of described led controller, described led controller and microprocessor are electrically connected, and are used to receive microprocessor control signal.
Described LED constant-flow driver is the constant-flow driver of LED digital dimming mode.
Beneficial technical effects of the present invention is:
Can control brightness and the ON/OFF of each LED or each group LED by remote control terminal;
Can know the work state information of each LED or each group LED by remote control terminal.
[description of drawings]
Fig. 1 is the block diagram of embodiments of the invention one;
Fig. 2 is the block diagram of embodiments of the invention two;
Fig. 3 is the block diagram of embodiments of the invention three;
Fig. 4 is the block diagram of embodiments of the invention four;
Fig. 5 is the block diagram of embodiments of the invention five;
[embodiment]
The invention provides a kind of stepless dimming LED (Light Emitting Diode) multipath drive constant current system by remote control terminal control.The present invention is further elaborated below in conjunction with Figure of description and specific embodiment:
Embodiment one:
As shown in Figure 1, a kind of remote stepless dimming LED multi-path drive constant-current system, this system compatible DALI agreement, comprise: a remote control terminal, a constant-current source and N LED or N group LED, described constant-current source comprises a network connection device, a microprocessor, a working power and N LED constant-flow driver, described N LED constant-flow driver driving N LED or N group LED, described remote control terminal comprises any computer on remote server, hand-held control appliance or the network.Described network connection device is used for receiving and sending signal, and described signal comprises control signal or LED work state information.
Described working power comprises rectifying and pressure-regulating device, constant-current device and stable-pressure device, described rectifying and pressure-regulating device is transformed into low-voltage DC with High Level AC Voltage, described constant-current device is exported to the LED constant-flow driver with the direct current that described low-voltage DC is transformed into constant current, and described stable-pressure device is exported to microprocessor and network connection device with the direct current that described low-voltage DC is transformed into constant voltage.
Described remote control terminal is connected with microprocessor by network connection device, and described working power provides the DC operating current of constant voltage for described microprocessor and LED constant-flow driver.Moreover, the LED constant-flow driver can also the Control work power supply to the size of the DC electric current of LED input, thereby regulate the brightness of LED.Its control principle is:
Described remote control terminal transmits control signal to microprocessor by network connection device, described microprocessor receives the work of described control signal control LED constant-flow driver, and described LED constant-flow driver will be adjusted to the electric current of exporting to LED that is complementary with control signal from the constant DC that working power is obtained.
Described network connects and comprises that local area network (LAN) connects or wide area network connects.
Described internetwork connection mode comprises wireless or wired.
Described microprocessor is a single-chip microcomputer.
Described LED constant-flow driver is the constant-flow driver of digital dimming mode.
In this embodiment, can only control brightness or the ON/OFF that all are subjected to the LED of this microprocessor control, can not control brightness or the ON/OFF of LED respectively by remote control terminal.
Embodiment two:
On the basis of the foregoing description one, by each the LED constant-flow driver that is connected with each LED is controlled, thereby control the brightness of each LED.Its concrete technical scheme is as follows:
As shown in Figure 2, described constant-current source also comprises:
Communication interface includes address information, and this communication interface is connected one to one with described LED constant-flow driver, and described LED constant-flow driver is connected one to one with described LED,
Device for addressing is used for searching out the pairing position of described LED by described address information;
This device for addressing is connected with described microprocessor, and described microprocessor is finished addressing, and searches out the LED that needs control by this device for addressing.
Described communication interface is a network interface card, and described network interface card includes mac address of nic, and described device for addressing is a route, the corresponding LED of each network interface card or one group of LED, and each route can include the physical address information of 256 network interface cards.
Embodiment three:
Among the foregoing description one or the embodiment two, described remote control terminal can only be controlled LED, control brightness or the ON/OFF of this LED, but can not obtain the work state information of LED, so in order to obtain the work state information of LED, need in this system, add sample circuit, obtain the operating current information of LED.Describe in detail below:
As shown in Figure 3, on the basis of the foregoing description two, described constant-current source also comprises sample circuit, described sample circuit comprises sampling module and A/D modular converter, described sampling module is connected with described LED one to one by the A/D modular converter, described sampling module obtains LED operating current information by the A/D modular converter, this LED operating current information sends to device for addressing by communication interface, microprocessor obtains the work state information of LED operating current information analysis LED from described device for addressing, described LED work state information is sent to remote control terminal by network connection device.
Embodiment four:
On the basis of the foregoing description three, in order to make when remote control terminal is not worked, the operating state of each paths of LEDs lamp can be regulated and control to described microprocessor automatically according to the running parameter information of storage, helps guaranteeing operate as normal.So on the basis of the foregoing description, as shown in Figure 4, described power supply also comprises memory, be used for store operational parameters information, described memory and described microprocessor are electrically connected, described microprocessor obtains described running parameter information and resolves to control signal, the work of control LED constant-flow driver.
Embodiment five:
As shown in Figure 5, on the basis of the foregoing description one, described constant-current source also comprises photoelectrical coupler, and described photoelectrical coupler is connected between network connection device and the microprocessor.
Described LED constant-flow driver comprises led controller and power amplifier, described power amplifier is arranged between described led controller and the LED, be used to accept the control signal of described led controller, described led controller and microprocessor are electrically connected, and are used to receive microprocessor control signal.
Described LED constant-flow driver is the constant-flow driver of LED digital dimming mode.
Should be noted that; the foregoing description that the present invention provides is explanation rather than the restriction to the present invention's design; the cardinal principle of the present invention's design is to control the operating state of each LED or each group LED by remote control terminal; and by the long-range operating state of knowing each LED or each group LED, all should be within protection scope of the present invention as long as belong to design of the present invention.

Claims (10)

1. remote stepless dimming LED multi-path drive constant-current system, comprise: remote control terminal, network connection device, microprocessor, working power and LED constant-flow driver, described remote control terminal transmits control signal to microprocessor by network connection device, described microprocessor receives the work of described control signal control LED constant-flow driver, and described LED constant-flow driver will be adjusted to the electric current of exporting to LED that is complementary with control signal from the constant DC that working power is obtained.
2. remote stepless dimming LED multi-path drive constant-current system according to claim 1 is characterized in that, this system also comprises:
Communication interface includes address information, and this communication interface is connected one to one with described LED constant-flow driver, and described LED constant-flow driver is connected one to one with described LED,
Device for addressing is used for searching out the pairing position of described LED by described address information;
This device for addressing is connected with described microprocessor, and described microprocessor searches out the LED that needs control by this device for addressing.
3. remote stepless dimming LED multi-path drive constant-current system according to claim 2, it is characterized in that, this system also comprises sampling module and A/D modular converter, described sampling module is connected with described LED one to one by the A/D modular converter, described sampling module obtains LED operating current information by the A/D modular converter, this LED operating current information sends to device for addressing by communication interface, microprocessor obtains the work state information of LED operating current information analysis LED from device for addressing, described LED work state information is sent to remote control terminal by network connection device.
4. according to the arbitrary described remote stepless dimming LED multi-path drive constant-current system of claim 1-3, it is characterized in that, this system also comprises memory, be used for store operational parameters information, described microprocessor obtains described running parameter information and resolves to control signal, the work of control LED constant-flow driver.
5. remote stepless dimming LED multi-path drive constant-current system according to claim 4 is characterized in that this system also comprises photoelectrical coupler, and described photoelectrical coupler is connected between network connection device and the microprocessor.
6. according to claim 4 or 5 described remote stepless dimming LED multi-path drive constant-current systems, it is characterized in that, described LED constant-flow driver comprises led controller and power amplifier, described power amplifier is arranged between described led controller and the LED, be used to accept the control signal of described led controller, described led controller and microprocessor are electrically connected, and are used to receive microprocessor control signal.Described LED constant-flow driver is the driver of LED digital dimming mode.
7. remote stepless dimming LED multi-path drive constant-current source, comprise network connection device, microprocessor, working power and LED constant-flow driver, described network connection device obtains the control signal of remote control terminal input, described microprocessor receives the work of described control signal control LED constant-flow driver, and described LED constant-flow driver will be adjusted to the electric current of exporting to LED that is complementary with control signal from the constant DC that working power is obtained.
8. remote stepless dimming LED multi-path drive constant-current according to claim 7 source is characterized in that, this constant-current source also comprises:
Communication interface includes address information, and this communication interface is connected one to one with described LED constant-flow driver, and described LED constant-flow driver is connected one to one with described LED,
Device for addressing is used for searching out the pairing position of described LED by described address information;
This device for addressing is connected with described microprocessor, and described microprocessor searches out the LED that needs control by this device for addressing.
9. remote stepless dimming LED multi-path drive constant-current according to claim 8 source, it is characterized in that, this constant-current source also comprises sample circuit, described sample circuit comprises sampling module and A/D modular converter, described sampling module is connected with described LED one to one by the A/D modular converter, described sampling module obtains LED operating current information by the A/D modular converter, this LED operating current information sends to device for addressing by communication interface, microprocessor obtains the work state information of LED operating current information analysis LED from described device for addressing, described LED work state information is sent to remote control terminal by network connection device.
10. according to the arbitrary described remote stepless dimming LED multi-path drive constant-current of claim 79 source, it is characterized in that, this constant-current source also comprises memory, be used for store operational parameters information, described microprocessor obtains described running parameter information and resolves to control signal, the work of control LED constant-flow driver.
CN200910304038A 2009-07-06 2009-07-06 Remote stepless dimming LED multi-path drive constant-current system and constant-current source Pending CN101784145A (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102264181A (en) * 2011-07-11 2011-11-30 苏州辰戈电子有限公司 Multi-path LED (Light Emitting Diode) controlling and driving system
CN102427639A (en) * 2011-09-19 2012-04-25 东莞勤上光电股份有限公司 Light modulation system of LED street lamp with direct current high voltage power supply and signal transmission and reception method thereof
CN102612220A (en) * 2012-02-29 2012-07-25 浙江师范大学 Method for controlling multiplex bus type LED lighting system
CN102737583A (en) * 2012-07-09 2012-10-17 深圳市磊芯半导体有限公司 LED (Light Emitting Diode) driving constant current channel output driver, cascading system and driving method of LED driving constant current channel output driver and cascading system
CN103068112A (en) * 2012-12-20 2013-04-24 华南理工大学 Method of light-emitting diode (LED) lamp smart lighting adjustment and system thereof
CN103796384A (en) * 2014-01-20 2014-05-14 复旦大学 Environment self-adaptation multi-scene multiplex semiconductor illumination control device
CN104735877A (en) * 2015-03-25 2015-06-24 东莞市石龙富华电子有限公司 Method and device for remote comprehensive illumination control over LED lamp
CN105282940A (en) * 2015-11-18 2016-01-27 深圳市金叶光线发展有限公司 Dimmable double-output LED driving power source and dimming method thereof
CN109168236A (en) * 2018-09-17 2019-01-08 四川鹏天科技发展有限公司 High load stepless light-regulating controller and its light adjusting system of application
CN109640457A (en) * 2019-01-18 2019-04-16 广东工业大学 A kind of Micro LED drive circuit and method

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102264181A (en) * 2011-07-11 2011-11-30 苏州辰戈电子有限公司 Multi-path LED (Light Emitting Diode) controlling and driving system
CN102427639A (en) * 2011-09-19 2012-04-25 东莞勤上光电股份有限公司 Light modulation system of LED street lamp with direct current high voltage power supply and signal transmission and reception method thereof
CN102612220A (en) * 2012-02-29 2012-07-25 浙江师范大学 Method for controlling multiplex bus type LED lighting system
CN102737583A (en) * 2012-07-09 2012-10-17 深圳市磊芯半导体有限公司 LED (Light Emitting Diode) driving constant current channel output driver, cascading system and driving method of LED driving constant current channel output driver and cascading system
CN102737583B (en) * 2012-07-09 2015-06-17 深圳市磊芯半导体有限公司 LED (Light Emitting Diode) driving constant current channel output driver, cascading system and driving method of LED driving constant current channel output driver and cascading system
CN103068112A (en) * 2012-12-20 2013-04-24 华南理工大学 Method of light-emitting diode (LED) lamp smart lighting adjustment and system thereof
CN103796384A (en) * 2014-01-20 2014-05-14 复旦大学 Environment self-adaptation multi-scene multiplex semiconductor illumination control device
CN104735877A (en) * 2015-03-25 2015-06-24 东莞市石龙富华电子有限公司 Method and device for remote comprehensive illumination control over LED lamp
CN105282940A (en) * 2015-11-18 2016-01-27 深圳市金叶光线发展有限公司 Dimmable double-output LED driving power source and dimming method thereof
CN105282940B (en) * 2015-11-18 2018-08-07 深圳市金叶光线发展有限公司 Tunable optical dual output LED drive power and its light-dimming method
CN109168236A (en) * 2018-09-17 2019-01-08 四川鹏天科技发展有限公司 High load stepless light-regulating controller and its light adjusting system of application
CN109640457A (en) * 2019-01-18 2019-04-16 广东工业大学 A kind of Micro LED drive circuit and method

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