CN218550240U - LED lamp dimming control system and dimmable planting LED light supplement lamp - Google Patents
LED lamp dimming control system and dimmable planting LED light supplement lamp Download PDFInfo
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- CN218550240U CN218550240U CN202222221571.0U CN202222221571U CN218550240U CN 218550240 U CN218550240 U CN 218550240U CN 202222221571 U CN202222221571 U CN 202222221571U CN 218550240 U CN218550240 U CN 218550240U
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Abstract
The utility model discloses a LED lamp dimming control system and can plant LED light filling lamp of planting with adjusting luminance, can external dimming control ware, first auxiliary power supply unit gets the electricity from the input alternating current power supply, and the output divide into three routes direct current voltage, gives the power control unit power supply all the way, gives the main control unit power supply all the way, and another way is through main control chip for the power supply of dimming control ware; the power control unit controls and adjusts the main power loop unit to enable the main power loop unit to output required direct current voltage, the direct current voltage is converted into voltage supported by the led lamp beads through the BUCK module in a voltage reduction mode, the main control chip obtains dimming signals through processing after receiving an instruction of an external dimming controller, the dimming signals are obtained from the direct current voltage output by the main power loop unit, the dimming voltage required by the dimming signals is obtained and is sent to a dimming pin of the BUCK module through a dimming wire, therefore, the internal reference of the BUCK module is caused to be changed, the voltage of the output pin is caused to be changed, the output current for controlling sampling is also changed accordingly, and the led dimming function is achieved.
Description
Technical Field
The utility model belongs to the technical field of the LED dimming control technique and specifically relates to indicate a LED lamp dimming control system and can adjust luminance and plant LED light filling lamp.
Background
At present, a high-power LED constant-voltage power supply is mainly used in the fields of plant light supplement, brightening, landscape lighting and the like, and under most conditions, the constant-voltage power supply is directly connected with similar products such as lamp strips and the like, and the products basically cannot realize light adjustment. The current market lacks a dimming device for a constant voltage power supply, but the current market also has a plurality of functional requirements for dimming, such as an LED plant light supplement lamp, and the application requirements for dimming the constant voltage power supply are already popular and are on the rise, especially plants need different spectra in different growth cycles, so how to provide a dimming system for LED lamps under the constant voltage power supply is a problem to be solved at present.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model aims to solve the technical problem that the LED lamp based on constant voltage power supply can not adjust luminance among the prior art is overcome.
The input end of the main power loop unit is connected to an alternating current power supply and is used for outputting a stable direct current voltage;
the output end of the power control unit is connected with the main power loop unit and used for outputting a control signal and sending the control signal to the main power loop unit;
the main control unit is connected with the output end of the main power loop unit, connected with an external dimming controller and used for receiving a dimming command sent by the external dimming controller and outputting a dimming voltage;
the input end of the first auxiliary power supply unit is connected to the alternating current power supply, and the output end of the first auxiliary power supply unit is connected with the power control unit and the main control unit and used for outputting multi-path stable direct current voltage to supply power to the power control unit and the main control unit;
the BUCK module unit comprises a plurality of BUCK modules, is connected to the output end of the main power loop unit and is used for reducing voltage, and each BUCK module is connected with the main control unit through an internal dimming pin and an external dimming line and is used for receiving dimming voltage sent by the main control unit and outputting dimming current.
In an embodiment of the present invention, the main control unit includes:
the signal acquisition unit is connected with the external dimming controller and used for receiving a dimming instruction sent by the external dimming controller and outputting a dimming signal;
the signal isolation transmission unit is connected with the signal acquisition unit and is used for transmitting the dimming signal;
the signal driving unit is connected with the signal isolation transmission unit and used for receiving the dimming signal and outputting a driving signal;
the second auxiliary power supply unit is connected with the output end of the main power loop unit, connected with the signal driving unit, and used for receiving the driving signal, outputting a dimming voltage and sending the dimming voltage to the signal driving unit;
the signal driving unit is connected with an internal dimming pin of the BUCK module unit through a dimming line and used for sending the dimming voltage to the BUCK module unit.
The utility model discloses an embodiment, the signal acquisition processing unit is integrated by MCU chip, BUCK chip and U103 driver chip, the MCU chip passes through the BUCK chip with U103 driver chip connects, the MCU chip with external dimming controller connects, U103 driver chip with the transmission unit connection is kept apart to the signal.
In an embodiment of the present invention, the MCU chip is an N76E003 chip.
In an embodiment of the present invention, the U103 driver chip is a JWH7917 chip.
The utility model discloses an in the embodiment, main power loop unit is integrated by EMI filter circuit, PFC circuit and LLC circuit, EMI filter circuit passes through the PFC circuit with the LLC circuit connection, the PFC circuit with the power control unit connects.
In an embodiment of the present invention, the main power control unit is an analog IC-PFC chip.
In an embodiment of the present invention, the signal isolation transmission unit is an optical coupler.
In an embodiment of the present invention, the BUCK module includes a DC-DC chip.
The utility model also provides a can adjust luminance and plant LED light filling lamp of planting, include:
the dimming controller is used for sending a dimming command;
the LED lamp dimming control system is connected to an alternating-current power supply, connected to the dimming controller and used for receiving the dimming instruction and outputting dimming current;
and the LED lamp bars are respectively and independently connected to the output end of any BUCK module in the dimming control system.
Compared with the prior art, the technical scheme of the utility model have following advantage:
the dimming control system of the utility model can be externally connected with a commonly used dimming controller on the market, the first auxiliary power supply unit of the dimming control system gets power from an input alternating current power supply, the output is divided into three paths of direct current voltages, one path of direct current voltage supplies power to the power control unit, the other path of direct current voltage supplies power to the main control unit, and the other path of direct current voltage supplies power to the dimming controller through the main control chip; the power control unit controls and adjusts the main power loop unit to enable the main power loop unit to efficiently and stably output required direct current voltage, the output direct current voltage is subjected to voltage reduction and conversion into voltage supported by LED lamp beads through the BUCK module, after the main control chip receives an instruction dim in of an external dimming controller, a dimming signal dim out is obtained through processing, dimming voltage required by the dimming signal is obtained from the direct current voltage output by the main power loop unit, and the dimming voltage is sent to a dimming pin of the BUCK module through a dimming wire, so that the internal reference of the BUCK module is caused to send changes, the voltage of the output pin is caused to change, the output current for controlling sampling is also changed, and the dimming function of the LED is realized.
Drawings
In order to make the content of the invention more clearly understood, the invention will now be described in further detail with reference to specific embodiments thereof, in conjunction with the accompanying drawings, in which
Fig. 1 is a structural diagram of a dimming control system of an LED lamp provided by the present invention.
Detailed Description
The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.
As shown in fig. 1, for solving the above technical problem, the utility model provides a light modulation control system for LED lamp, include:
the input end of a main power loop unit 2 is connected to an alternating current power supply 1 and used for outputting a stable 48V direct current voltage, the main power loop unit is integrated by an EMI filter circuit, a PFC circuit and an LLC circuit, the EMI filter circuit is connected with the LLC circuit through the PFC circuit, the LLC circuit carries out power conversion and is connected and output, so that the stable 48V direct current output voltage is obtained, the LED + is (+ 48V) and the LED-is (-48V), a synchronous rectification scheme of an original series-parallel connection mode and a secondary-parallel connection mode are adopted, and 4 field effect tubes are used for rectification, so that the output current of the field effect tubes can reach 13.5A.
And the output end of the power control unit 3 is connected with the PFC circuit of the main power loop unit and used for outputting a control signal and sending the control signal to the main power loop unit to control and automatically adjust the main power loop unit so as to achieve normal work and high efficiency, the main power control unit is an analog IC-PFC chip of TI company, and the power supply has low THD and high PF value by debugging peripheral parameters of the chip and designing an optimal PFC inductance.
And the main control unit 4 is connected with the output end of the main power loop unit and an external dimming controller 6, and is used for receiving the dimming instruction dim in sent by the external dimming controller and outputting a dimming voltage.
And the first auxiliary power supply unit 5 adopts a flyback power supply topology structure, the input end of the first auxiliary power supply unit is connected to the alternating current power supply, and the output end of the first auxiliary power supply unit is connected with the power control unit and the main control unit and is used for outputting a plurality of paths of stable direct current voltages to supply power to the power control unit and the main control unit.
The BUCK module unit 7 comprises a plurality of BUCK modules, is connected to the output end of the main power loop unit and is used for reducing voltage, and each BUCK module is connected with the main control unit through an external dimming wire connected with an internal dimming pin and is used for receiving dimming voltage sent by the main control unit and outputting dimming current;
the BUCK module is composed of a DC-DC chip and a peripheral circuit of MPS company, and is used for outputting 48V direct current by a constant voltage power supply and converting the direct current into a required 36V/42V direct current power supply, the internal IC dimming pin is externally connected with a dimming line to realize a dimming function, the output current is controlled, and the lamp is turned on or off by matching with software logic.
The dimming control system of the utility model can be externally connected with a commonly used dimming controller (0-10V, PWM dimming mode, 10% -100% stepless dimming) on the market, the first auxiliary power supply unit of the dimming control system gets power from an input alternating current power supply, the output is divided into three paths of direct current voltages, one path is direct current 16V for supplying power to a power control unit, one path is direct current 14V for supplying power to a main control unit, and the other path is direct current 12V for supplying power to the dimming controller through a main control chip; the power control unit controls and adjusts the main power loop unit to enable the main power loop unit to efficiently and stably output required direct current voltage, the output direct current voltage is subjected to voltage reduction and conversion into voltage supported by LED lamp beads through the BUCK module, after the main control chip receives an instruction dim in of an external dimming controller, a dimming signal dim out is obtained through processing, dimming voltage required by the dimming signal is obtained from the direct current voltage output by the main power loop unit, and the dimming voltage is sent to a dimming pin of the BUCK module through a dimming wire, so that the internal reference of the BUCK module is caused to send changes, the voltage of the output pin is caused to change, the output current for controlling sampling is also changed, and the dimming function of the LED is realized.
Based on the above embodiments, the present embodiment further describes the main control chip:
the main control unit is integrated by signal acquisition and processing unit 9, signal isolation transmission unit 10, signal drive unit 11 and second auxiliary power supply unit 12, wherein:
the signal acquisition processing unit is integrated by MCU chip (N76E 003 chip), BUCK chip (SY 8511 chip) and U103 driver chip (JWH 7917 chip), the MCU chip passes through the BUCK chip with U103 driver chip connects, controls and normally works to and the abnormal protection, the MCU chip with external dimming controller connects, U103 driver chip with the signal isolation transmission unit connects.
The signal acquisition unit is connected with the external dimming controller, is connected with the signal driving unit through the signal isolation transmission unit, is used for receiving a dimming instruction sent by the external dimming controller, outputs a dimming signal and transmits the dimming signal to the signal driving unit through the signal isolation transmission unit;
the signal isolation transmission unit is an optical coupler (EL 1018), which is a device for transmitting electric signals by using light as a medium, and generally, a light emitter (an infrared Light Emitting Diode (LED)) and a light receiver (a photosensitive semiconductor tube and a photosensitive resistor) are packaged in the same tube shell. When the input end is electrified with a signal, the light emitter emits light, the light receiver receives the light and then generates light current which flows out from the output end, and therefore 'electro-optic-electro' control is achieved.
The signal driving unit is connected with the second auxiliary power supply unit and used for outputting a driving signal to be sent to the second auxiliary power supply unit;
the second auxiliary power supply unit is connected with the output end of the main power loop unit and used for outputting a dimming voltage and sending the dimming voltage to the signal driving unit;
the signal driving unit is connected with an IC dimming pin inside the BUCK module unit through a dimming line and used for sending dimming voltage to the BUCK module unit.
The signal acquisition processing unit acquires a dim in instruction, processes the dim in instruction to obtain a dim out signal, and transmits the dim out signal to the signal driving unit through the signal isolation transmission unit, and the signal driving unit controls the second auxiliary circuit to convert the direct-current voltage output by the main power loop unit into the direct-current voltage required by the dim out signal, so that the direct-current voltage is transmitted to a light modulation pin of an internal chip of the BUCK module through a light modulation line.
The utility model also provides a can adjust luminance and plant LED light filling lamp of planting, include:
the dimming controller is used for sending a dimming command;
the LED lamp dimming control system is connected to an alternating-current power supply, connected to the dimming controller and used for receiving the dimming instruction and outputting dimming current;
the LED light bars 8 are respectively and independently connected to the output end of any BUCK module in the dimming control system;
the LED lamp strip is connected in series-parallel for LED lamp pearl and constitutes, and lamp pearl voltage supports 36V or 42V, single 90W or 120W, according to the light filling demand of different plants, installs the lamp strip, facilitates the use, realizes the high-efficient utilization of the energy, and the hot plug is supported to the lamp strip output, does benefit to the installation, reduces construction cost.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (10)
1. An LED lamp dimming control system, comprising:
the input end of the main power loop unit is connected to an alternating current power supply and is used for outputting a stable direct current voltage;
the output end of the power control unit is connected with the main power loop unit and used for outputting a control signal and sending the control signal to the main power loop unit;
the main control unit is connected with the output end of the main power loop unit, connected with an external dimming controller and used for receiving a dimming instruction sent by the external dimming controller and outputting a dimming voltage;
the input end of the first auxiliary power supply unit is connected to the alternating current power supply, and the output end of the first auxiliary power supply unit is connected with the power control unit and the main control unit and used for outputting a plurality of paths of stable direct current voltages to supply power to the power control unit and the main control unit;
the BUCK module unit comprises a plurality of BUCK modules, is connected to the output end of the main power loop unit and is used for reducing voltage, and each BUCK module is connected with the main control unit through an internal dimming pin and an external dimming line and is used for receiving dimming voltage sent by the main control unit and outputting dimming current.
2. The LED lamp dimming control system of claim 1, wherein the main control unit comprises:
the signal acquisition unit is connected with the external dimming controller and is used for receiving a dimming command sent by the external dimming controller and outputting a dimming signal;
the signal isolation transmission unit is connected with the signal acquisition unit and is used for transmitting the dimming signal;
the signal driving unit is connected with the signal isolation transmission unit and used for receiving the dimming signal and outputting a driving signal;
the second auxiliary power supply unit is connected with the output end of the main power loop unit, connected with the signal driving unit, and used for receiving the driving signal, outputting a dimming voltage and sending the dimming voltage to the signal driving unit;
the signal driving unit is connected with the dimming pin inside the BUCK module unit through a dimming line and used for sending the dimming voltage to the BUCK module unit.
3. The LED lamp dimming control system according to claim 2, wherein the signal acquisition and processing unit is integrated by an MCU chip, a BUCK chip and a U103 driving chip, the MCU chip is connected with the U103 driving chip through the BUCK chip, the MCU chip is connected with the external dimming controller, and the U103 driving chip is connected with the signal isolation transmission unit.
4. The LED lamp dimming control system of claim 3, wherein the MCU chip is an N76E003 chip.
5. The dimming control system for LED lamp according to claim 3, wherein the U103 driver chip is JWH7917 chip.
6. The dimming control system for the LED lamp according to claim 1, wherein the main power loop unit is integrated by an EMI filter circuit, a PFC circuit and an LLC circuit, the EMI filter circuit is connected with the LLC circuit through the PFC circuit, and the PFC circuit is connected with the power control unit.
7. The dimming control system for the LED lamp of claim 1, wherein the main power control unit is an analog IC-PFC chip.
8. The dimming control system for the LED lamp of claim 1, wherein the signal isolation transmission unit is an optocoupler.
9. The LED lamp dimming control system of claim 1, wherein the BUCK module comprises a DC-DC chip.
10. The utility model provides a LED light filling lamp is planted to adjustable light which characterized in that includes:
the dimming controller is used for sending a dimming command;
the LED lamp dimming control system of any one of claims 1-9, connected to an ac power source and to the dimming controller, for receiving the dimming command and outputting a dimming current;
and the LED lamp bars are respectively and independently connected to the output end of any BUCK module in the dimming control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222221571.0U CN218550240U (en) | 2022-08-23 | 2022-08-23 | LED lamp dimming control system and dimmable planting LED light supplement lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222221571.0U CN218550240U (en) | 2022-08-23 | 2022-08-23 | LED lamp dimming control system and dimmable planting LED light supplement lamp |
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| Publication Number | Publication Date |
|---|---|
| CN218550240U true CN218550240U (en) | 2023-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222221571.0U Active CN218550240U (en) | 2022-08-23 | 2022-08-23 | LED lamp dimming control system and dimmable planting LED light supplement lamp |
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| Country | Link |
|---|---|
| CN (1) | CN218550240U (en) |
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- 2022-08-23 CN CN202222221571.0U patent/CN218550240U/en active Active
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