CN114390756A - Intelligent driving controller for LED illuminating lamp - Google Patents
Intelligent driving controller for LED illuminating lamp Download PDFInfo
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- CN114390756A CN114390756A CN202210021541.7A CN202210021541A CN114390756A CN 114390756 A CN114390756 A CN 114390756A CN 202210021541 A CN202210021541 A CN 202210021541A CN 114390756 A CN114390756 A CN 114390756A
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- 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]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
- H05B45/3725—Switched mode power supply [SMPS]
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- 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
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- 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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/16—Controlling the light source by timing means
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- 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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/175—Controlling the light source by remote control
- H05B47/19—Controlling the light source by remote control via wireless transmission
- H05B47/195—Controlling the light source by remote control via wireless transmission the transmission using visible or infrared light
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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
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses an intelligent driving controller for an LED illuminating lamp, and relates to the technical field of LED illumination. The LED driving circuit comprises a DC/DC conversion circuit, a main control module, an LED load, a voltage control circuit, a current regulation circuit and an MCU microprocessor; the switch module controls the on-off of the circuit of the LED load; the output stage circuit drives the LED load to work according to the direct current output by the main control board; the voltage control circuit is connected with the current regulating circuit through the current sampling circuit; the current regulating circuit detects output voltage corresponding to the output current of the switch module; the main control module controls the switch module to adjust the output current according to the preset current value according to the current detection feedback signal. According to the LED driving controller circuit for the DC/DC lighting, the MUC microprocessor is used for detecting the output voltage of the output stage circuit through each element in the LED driving controller circuit for the DC/DC lighting, and correspondingly outputting the overvoltage detection signal to the main control module to control the on-off of the switch control device, so that the intelligent degree of the driving controller is improved, and the service life of an LED is prolonged.
Description
Technical Field
The invention belongs to the technical field of LED illumination, and particularly relates to an intelligent driving controller for an LED illuminating lamp.
Background
Because Light Emitting Diode (LED) Light sources have the advantages of small size, high brightness, low power consumption, long service life, etc., they are widely focused and applied, so that it is a trend to replace the conventional fluorescent lamp tubes with LED tubes.
In the prior art, there are two main ways for replacing the traditional fluorescent lamp tube with the LED lamp tube:
the first method is to completely remove the original fluorescent lamp tube and ballast and directly input the commercial power to the LED lamp tube, but this method needs to modify the internal wiring of the lamp, thus generating extra labor cost;
the second mode is that the original fluorescent lamp tube is only replaced without changing the internal circuit of the lamp, but the installed LED lamp tube is required to be compatible with the original ballast to work. However, in fluorescent ballasts, there is a considerable proportion of electronic ballasts, and thus a challenge in replacing fluorescent tubes is to operate compatible electronic ballasts.
Although white light LED is an ideal solution for today's large-scale lighting, if the electronic device for driving LED is popularized to each bulb, the main problem is that the performance of the current LED driving circuit has not achieved high efficiency conversion, wherein the key technical problem is that the electronic energy conversion efficiency of the driving electronic system is very large due to the discrete range, the parameters are difficult to control, and the height and stability are the main problems of the whole LED practical technology and product parameters. Secondly, heat dissipation and EMI (electromagnetic interference) factors are also considered, both of which have important effects on the reliability of the lighting device, and limit the design density. In addition, since the forward current-voltage characteristic of the LED is very steep, that is, the forward dynamic resistance is very small, it is difficult to supply power to the LED. The power supply can not be directly supplied by a voltage source like a common incandescent lamp, otherwise, the voltage fluctuation is slightly increased, and the current is increased to the extent of burning the LED. In order to stabilize the working current of the LED and ensure that the LED can work normally and reliably, various LED driving circuits are generated.
At present, the prior circuit has the following problems:
1) the existing LED driving controller only has a constant current or a voltage stabilizing circuit, and has a single function;
2) the traditional LED driving controller has narrow voltage range and small driving power;
3) poor heat dissipation and short service life;
4) the power utilization rate is low.
Disclosure of Invention
The invention aims to provide an intelligent driving controller of an LED illuminating lamp, which detects the output voltage of an output stage circuit through each element in a DC/DC LED driving controller circuit for illumination, correspondingly outputs an overvoltage detection signal to a main control module to control the closing of a switch control device, and solves the problems of short service life, single function and insufficient intellectualization in the prior art.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to an intelligent driving controller of an LED illuminating lamp, which comprises a DC/DC conversion circuit, a main control module, an LED load, a voltage control circuit, a current regulating circuit and an MCU microprocessor;
the DC/DC conversion circuit is sequentially connected with the main control module, the switch module, the output stage circuit and the LED load; the switch module controls the on-off of the circuit of the LED load; the output stage circuit drives the LED load to work according to the direct current output by the main control board;
the output ends of the voltage control circuit and the current regulating circuit are connected with the input end of the main control module; the voltage control circuit is connected with the current regulating circuit through the current sampling circuit;
the output end of the MUC microprocessor is connected with the input end of the main control module; the current regulating circuit detects output voltage corresponding to the output current of the switch module and feeds back a corresponding output current detection feedback signal to the main control module; the main control module controls the switch module to adjust the output current according to a preset current value according to the current detection feedback signal;
the voltage control circuit detects the output voltage of the output stage circuit and correspondingly outputs an overvoltage detection signal to the main control module, and when the output voltage of the output stage circuit is larger than a preset threshold value, the main control module controls the switch module to stop outputting direct current according to the overvoltage detection signal.
As a preferred technical scheme, a circuit between the main control module and the switch module is provided with a current sampling device and a drive circuit of the switch module; the current sampling device is connected with the switch module and is used for monitoring the current of the switch module; and the driving circuit of the switch module is coupled with the current sampling device and used for controlling the closing of the switch control device.
As a preferable technical solution, the drive circuit of the switching control device includes:
the current judging circuit is coupled with the current sampling device and is used for judging whether the current passing through the switch module exceeds a preset threshold value or not;
the control logic and drive circuit is coupled with the current judgment circuit and the switch module, and controls the switch control device to be in a disconnected state if the current passing through the switch module does not exceed a preset threshold value, and the output stage circuit stops outputting; and if the current passing through the LED load exceeds the preset threshold, controlling the switch control device to be in a closed state, and starting output of the output stage circuit to enable the output stage circuit and the LED load to work within a specified power range.
As a preferred technical solution, the DC/DC conversion circuit includes a storage battery P1, a pin 1 of the storage battery P1 is connected to a power source VCC, a pin 1 of the storage battery P1 is connected to a power source terminal in parallel with two input capacitors C1 and C2, and is connected in series with an inductor L1 and two parallel schottky rectifier diodes D1 and D2; the output ends of the two Schottky rectifier diodes which are connected in parallel are connected with a group of output capacitor C3, capacitor C4 and capacitor C5 in parallel and then connected with a voltage control circuit; the inductor L1 is connected with a management chip LM2587-ADJ in parallel, a management chip LM2587-ADJ pin 1 is connected with a resistor R6 and a capacitor C7, an input capacitor C1, a capacitor C2, an output capacitor C3, a capacitor C4, a capacitor C5, a capacitor C7 and a management chip LM2587-ADJ pin 3 are grounded, and a management chip LM2587-ADJ pin 2 is connected with a resistor R7 and then connected with the output end of the current regulating circuit.
As a preferable technical solution, the voltage control circuit comprises a resistor R3, a resistor R4 and a multi-control switch connected in parallel with a set of output capacitor C3, a capacitor C4 and a capacitor C5 of the DC/DC conversion circuit, and a resistor R2 connected to the power supply VCC terminal of the storage battery P1; a node between the resistor R3 and the resistor R4 is connected with the positive input end of the third operational amplifier, and an output end pin 1 and a negative input end pin 2 of the third operational amplifier are connected with a fourth operational amplifier bypass resistor R1 of the current regulating circuit; pins 1 and 3 of the multi-control switch are respectively connected with an LED load, and pin 2 is grounded; and the output end of the LED load is connected with the current sampling circuit.
As a preferable technical solution, the current sampling circuit includes a second operational amplifier connected to the voltage control circuit resistor R2, a positive input terminal of the second operational amplifier is connected to a group of resistor capacitors connected in parallel, a negative input terminal of the second operational amplifier is connected in parallel to the resistor R10 and the resistor R11, the resistor R10 is connected in parallel to the negative input terminal and the output terminal of the second operational amplifier, and an output terminal of the second operational amplifier is connected to the current regulating circuit.
As a preferred technical scheme, the output end of the MCU microprocessor is also connected with a wifi notification module, a mobile phone APP and a display module; the input end of the MCU microprocessor is also connected with a timer module and an infrared receiving module.
The invention has the following beneficial effects:
according to the LED driving controller circuit for the DC/DC lighting, the MUC microprocessor is used for detecting the output voltage of the output stage circuit through each element in the LED driving controller circuit for the DC/DC lighting, and correspondingly outputting the overvoltage detection signal to the main control module to control the on-off of the switch control device, so that the intelligent degree of the driving controller is improved, and the service life of an LED is prolonged.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an intelligent driving controller for an LED lighting lamp according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention is an intelligent driving controller for an LED lighting lamp, including a DC/DC conversion circuit, a main control module, an LED load, a voltage control circuit, a current regulation circuit, and an MCU microprocessor; the DC/DC conversion circuit is sequentially connected with the main control module, the switch module, the output stage circuit and the LED load; the switch module controls the on-off of the circuit of the LED load; the output stage circuit drives the LED load to work according to the direct current output by the main control board; the output ends of the voltage control circuit and the current regulating circuit are connected with the input end of the main control module; the voltage control circuit is connected with the current regulating circuit through the current sampling circuit; the output end of the MUC microprocessor is connected with the input end of the main control module; the current regulating circuit detects output voltage corresponding to the output current of the switch module and feeds back a corresponding output current detection feedback signal to the main control module; the main control module controls the switch module to adjust the output current according to a preset current value according to the current detection feedback signal; the voltage control circuit detects the output voltage of the output stage circuit and correspondingly outputs an overvoltage detection signal to the main control module, and when the output voltage of the output stage circuit is larger than a preset threshold value, the main control module controls the switch module to stop outputting direct current according to the overvoltage detection signal.
A circuit between the main control module and the switch module is provided with a current sampling device and a drive circuit of the switch module; the current sampling device is connected with the switch module and is used for monitoring the current of the switch module; and the driving circuit of the switch module is coupled with the current sampling device and used for controlling the closing of the switch control device.
The drive circuit of the switch control device includes: the current judging circuit is coupled with the current sampling device and is used for judging whether the current passing through the switch module exceeds a preset threshold value or not; the control logic and drive circuit is coupled with the current judgment circuit and the switch module, and controls the switch control device to be in a disconnected state if the current passing through the switch module does not exceed a preset threshold value, and the output stage circuit stops outputting; if the current passing through the LED load exceeds a preset threshold value, the switch control device is controlled to be in a closed state, the output stage circuit starts to output, and the output stage circuit and the LED load work within a specified power range.
The DC/DC conversion circuit comprises a storage battery P1, wherein a pin 1 of the storage battery P1 is connected with a power supply VCC, a pin 1 of a P1 is connected with two input capacitors C1 and a capacitor C2 in parallel, and an inductor L1 and two parallel Schottky rectifier diodes D1 and D2 are connected in series; the output ends of the two Schottky rectifier diodes which are connected in parallel are connected with a group of output capacitor C3, capacitor C4 and capacitor C5 in parallel and then connected with a voltage control circuit; the inductor L1 is connected with a management chip LM2587-ADJ in parallel, a management chip LM2587-ADJ pin 1 is connected with a resistor R6 and a capacitor C7, an input capacitor C1, a capacitor C2, an output capacitor C3, a capacitor C4, a capacitor C5, a capacitor C7 and a management chip LM2587-ADJ pin 3 are grounded, and a management chip LM2587-ADJ pin 2 is connected with a resistor R7 and then connected with the output end of the current regulating circuit.
The voltage control circuit comprises a resistor R3, a resistor R4 and a multi-control switch which are connected in parallel with a group of output capacitors C3, a capacitor C4 and a capacitor C5 of the DC/DC conversion circuit, and a resistor R2 connected with the power supply VCC end of the storage battery P1; a node between the resistor R3 and the resistor R4 is connected with the positive input end of the third operational amplifier, and an output end pin 1 and a negative input end pin 2 of the third operational amplifier are connected with a fourth operational amplifier bypass resistor R1 of the current regulating circuit; pins 1 and 3 of the multi-control switch are respectively connected with an LED load, and pin 2 is grounded; and the output end of the LED load is connected with the current sampling circuit.
The current sampling circuit comprises a second operational amplifier connected with a voltage control circuit resistor R2, the positive input end of the second operational amplifier is connected with a group of resistor capacitors connected in parallel, the negative input end of the second operational amplifier is connected with a resistor R10 and a resistor R11 in parallel, the resistor R10 is connected with the negative input end and the output end of the second operational amplifier in parallel, and the output end of the second operational amplifier is connected with the current regulating circuit.
The output end of the MCU microprocessor is also connected with a wifi notification module, a mobile phone APP and a display module; the input end of the MCU microprocessor is also connected with a timer module and an infrared receiving module; the infrared receiving module can be remotely controlled through an infrared remote controller to realize the on-off of the LED load, and can also be remotely controlled through a mobile phone APP; the timer module is used for limiting the working time of the equipment, and the display module is used for displaying the working state of the current equipment.
It should be noted that, in the above system embodiment, each included unit is only divided according to functional logic, but is not limited to the above division as long as the corresponding function can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
In addition, it is understood by those skilled in the art that all or part of the steps in the method for implementing the embodiments described above may be implemented by a program instructing associated hardware, and the corresponding program may be stored in a computer-readable storage medium.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. The utility model provides a LED light intelligence drive controller, includes DC/DC converting circuit, host system, LED load, voltage control circuit, current regulation circuit and MCU microprocessor, its characterized in that:
the DC/DC conversion circuit is sequentially connected with the main control module, the switch module, the output stage circuit and the LED load; the switch module controls the on-off of the circuit of the LED load; the output stage circuit drives the LED load to work according to the direct current output by the main control board;
the output ends of the voltage control circuit and the current regulating circuit are connected with the input end of the main control module; the voltage control circuit is connected with the current regulating circuit through the current sampling circuit;
the output end of the MUC microprocessor is connected with the input end of the main control module; the current regulating circuit detects output voltage corresponding to the output current of the switch module and feeds back a corresponding output current detection feedback signal to the main control module; the main control module controls the switch module to adjust the output current according to a preset current value according to the current detection feedback signal;
the voltage control circuit detects the output voltage of the output stage circuit and correspondingly outputs an overvoltage detection signal to the main control module, and when the output voltage of the output stage circuit is larger than a preset threshold value, the main control module controls the switch module to stop outputting direct current according to the overvoltage detection signal.
2. The intelligent driving controller for the LED illuminating lamp according to claim 1, wherein a circuit between the main control module and the switch module is provided with a current sampling device and a driving circuit of the switch module; the current sampling device is connected with the switch module and is used for monitoring the current of the switch module; and the driving circuit of the switch module is coupled with the current sampling device and used for controlling the closing of the switch control device.
3. The intelligent driving controller for the LED lighting lamp according to claim 2, wherein the driving circuit of the switch control device comprises:
the current judging circuit is coupled with the current sampling device and is used for judging whether the current passing through the switch module exceeds a preset threshold value or not;
the control logic and drive circuit is coupled with the current judgment circuit and the switch module, and controls the switch control device to be in a disconnected state if the current passing through the switch module does not exceed a preset threshold value, and the output stage circuit stops outputting; and if the current passing through the LED load exceeds the preset threshold, controlling the switch control device to be in a closed state, and starting output of the output stage circuit to enable the output stage circuit and the LED load to work within a specified power range.
4. The intelligent driving controller for the LED illuminating lamp according to claim 1, wherein the DC/DC conversion circuit comprises a storage battery P1, a storage battery P1 pin 1 is connected with a power supply VCC, a P1 pin 1 is connected with two input capacitors C1 and C2 in parallel, and is connected with an inductor L1 and two parallel Schottky rectifier diodes D1 and D2 in series; the output ends of the two Schottky rectifier diodes which are connected in parallel are connected with a group of output capacitor C3, capacitor C4 and capacitor C5 in parallel and then connected with a voltage control circuit; the inductor L1 is connected with a management chip LM2587-ADJ in parallel, a management chip LM2587-ADJ pin 1 is connected with a resistor R6 and a capacitor C7, an input capacitor C1, a capacitor C2, an output capacitor C3, a capacitor C4, a capacitor C5, a capacitor C7 and a management chip LM2587-ADJ pin 3 are grounded, and a management chip LM2587-ADJ pin 2 is connected with a resistor R7 and then connected with the output end of the current regulating circuit.
5. The intelligent driving controller for the LED illuminating lamp according to claim 1, wherein the voltage control circuit comprises a resistor R3, a resistor R4 and a multi-control switch which are connected in parallel with a group of output capacitors C3, a capacitor C4 and a capacitor C5 of the DC/DC conversion circuit, and a resistor R2 connected with a power supply VCC end of a storage battery P1; a node between the resistor R3 and the resistor R4 is connected with the positive input end of the third operational amplifier, and an output end pin 1 and a negative input end pin 2 of the third operational amplifier are connected with a fourth operational amplifier bypass resistor R1 of the current regulating circuit; pins 1 and 3 of the multi-control switch are respectively connected with an LED load, and pin 2 is grounded; and the output end of the LED load is connected with the current sampling circuit.
6. The intelligent driving controller for the LED lighting lamp according to claim 1, wherein the current sampling circuit comprises a second operational amplifier connected to a resistor R2 of the voltage control circuit, a positive input terminal of the second operational amplifier is connected to a set of parallel resistor capacitors, a negative input terminal of the second operational amplifier is connected in parallel to a resistor R10 and a resistor R11, the resistor R10 is connected in parallel to a negative input terminal and an output terminal of the second operational amplifier, and an output terminal of the second operational amplifier is connected to the current adjusting circuit.
7. The intelligent driving controller for the LED illuminating lamp according to claim 1, wherein the output end of the MCU microprocessor is further connected with a wifi notification module, a mobile phone APP and a display module; the input end of the MCU microprocessor is also connected with a timer module and an infrared receiving module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210021541.7A CN114390756A (en) | 2022-01-10 | 2022-01-10 | Intelligent driving controller for LED illuminating lamp |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210021541.7A CN114390756A (en) | 2022-01-10 | 2022-01-10 | Intelligent driving controller for LED illuminating lamp |
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| CN114390756A true CN114390756A (en) | 2022-04-22 |
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| CN202210021541.7A Pending CN114390756A (en) | 2022-01-10 | 2022-01-10 | Intelligent driving controller for LED illuminating lamp |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116506991A (en) * | 2023-06-30 | 2023-07-28 | 深圳市赛太克电子科技有限公司 | Light control method and system for luminous game handle |
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| US20140028212A1 (en) * | 2012-07-26 | 2014-01-30 | San Chuang | Constant current led driver |
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| CN116506991A (en) * | 2023-06-30 | 2023-07-28 | 深圳市赛太克电子科技有限公司 | Light control method and system for luminous game handle |
| CN116506991B (en) * | 2023-06-30 | 2023-11-10 | 深圳市赛太克电子科技有限公司 | Light control method and system for luminous game handle |
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