CN114143927A - Energy-saving LED light depth adjusting circuit - Google Patents
Energy-saving LED light depth adjusting circuit Download PDFInfo
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- CN114143927A CN114143927A CN202111215096.XA CN202111215096A CN114143927A CN 114143927 A CN114143927 A CN 114143927A CN 202111215096 A CN202111215096 A CN 202111215096A CN 114143927 A CN114143927 A CN 114143927A
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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]
- H05B45/10—Controlling the intensity of the light
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention relates to an energy-saving LED light depth adjusting circuit. The LED driving circuit in the circuit supplies power to the control circuit and the LED lamp bead array; the control circuit receives the brightness adjusting instruction and controls the LED dimming circuit according to the brightness adjusting instruction so as to adjust the brightness of the LED lamp bead array; the control circuit controls the on-off of the shunt circuit, and if the brightness corresponding to the brightness adjusting instruction is greater than the preset brightness, the control circuit controls the shunt circuit to be switched off; and if the brightness corresponding to the brightness adjusting instruction is not greater than the preset brightness, the control circuit controls the shunt circuit to be switched on. The LED lamp achieves the low-brightness adjustment requirement of the LED lamp by arranging the shunt circuit, and meanwhile, the shunt circuit is not carried out during high brightness, so that the electric energy is saved.
Description
Technical Field
The invention relates to the field of LEDs, in particular to an energy-saving LED light depth adjusting circuit.
Background
The traditional LED lighting has low requirements on the brightness adjusting range, and the brightness of a plurality of gears is usually set. With the intelligent development of the LED lamp, the requirement of a user on the adjustment range of the brightness of the LED lamp is larger and larger, particularly the requirement on low brightness. The existing LED circuit can not meet the requirements of users, particularly, no better solution is provided for realizing low brightness, and the problem that how to enable the brightness of the existing LED lamp set to have a larger adjusting range needs to be solved.
Disclosure of Invention
The present invention provides an energy-saving LED light depth adjusting circuit, which solves the above-mentioned problems in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: an energy-saving LED light depth adjusting circuit is constructed and comprises a control circuit, an LED driving circuit, an LED lamp bead array, an LED dimming circuit and a shunt circuit;
the input end of the LED driving circuit is connected with a power supply, the first output end of the LED driving circuit is connected with the control circuit, and the second output end of the LED driving circuit is connected with the LED lamp bead array; the control circuit is connected with the LED lamp bead array through the LED dimming circuit; the control circuit is connected with the shunt circuit, and the shunt circuit is connected with the LED lamp bead array in parallel;
the LED driving circuit supplies power to the control circuit and the LED lamp bead array; the control circuit receives a brightness adjusting instruction and controls the LED dimming circuit according to the brightness adjusting instruction so as to adjust the brightness of the LED lamp bead array; the control circuit controls the on-off of the shunt circuit, and if the brightness corresponding to the brightness adjusting instruction is greater than the preset brightness, the control circuit controls the shunt circuit to be switched off; and if the brightness corresponding to the brightness adjusting instruction is not greater than the preset brightness, the control circuit controls the shunt circuit to be switched on.
Further, in the energy-saving LED light depth adjusting circuit of the present invention, the shunt circuit shunts a resistor R and a switch circuit;
the shunt resistor R is connected with the switch circuit in series and then connected with the LED lamp bead array in parallel, and the control circuit is connected with and controls the on-off of the switch circuit.
Further, in the energy-saving LED light depth adjusting circuit of the present invention, the switching circuit is an MOS transistor Q, and the control circuit controls on/off of the MOS transistor Q;
the control circuit is connected with a grid electrode of the MOS tube Q, a drain electrode of the MOS tube Q is connected with a first end of the shunt resistor R, and a second end of the shunt resistor R and a source electrode of the MOS tube are respectively connected to two ends of the LED lamp bead array; or
The control circuit is connected with the grid electrode of the MOS tube Q, the source electrode of the MOS tube Q is connected with the first end of the shunt resistor R, and the second end of the shunt resistor R and the drain electrode of the MOS tube are respectively connected to the two ends of the LED lamp bead array.
Further, in the energy-saving LED light depth adjusting circuit of the present invention, the control circuit adjusts the access resistance value of the shunt resistor R by controlling the on-off frequency of the MOS transistor Q.
Further, in the energy-saving LED light depth adjusting circuit of the present invention, the LED lamp bead array includes at least two series LED lamp groups, and each series LED lamp group includes at least two LED lamp beads.
Further, in the energy-saving LED light depth adjusting circuit of the present invention, the preset brightness is 1% of the maximum brightness of the LED lamp bead array.
Further, in the energy-saving LED light depth adjusting circuit of the present invention, the power supply is an ac power supply.
Furthermore, the energy-saving LED light depth adjusting circuit also comprises an LED color adjusting circuit, the control circuit is connected with the LED lamp bead array through the LED color adjusting circuit, and the LED color adjusting circuit is used for adjusting the color temperature of the LED lamp bead array.
Further, the energy-saving LED light depth adjusting circuit further comprises a brightness adjusting knob connected with the control circuit, and the brightness adjusting knob generates the brightness adjusting instruction.
Further, the energy-saving LED light depth adjusting circuit further comprises a wireless communication module connected with the control circuit, and the wireless communication module receives the brightness adjusting instruction sent by an external control terminal.
The energy-saving LED light depth adjusting circuit has the following beneficial effects: the LED lamp achieves the low-brightness adjustment requirement of the LED lamp by arranging the shunt circuit, and meanwhile, the shunt circuit is not carried out during high brightness, so that the electric energy is saved.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
fig. 1 is a schematic circuit diagram of an energy-saving LED optical depth adjusting circuit according to an embodiment of the present invention;
FIG. 2 is a schematic circuit diagram of an energy-saving LED optical depth adjusting circuit according to an embodiment of the present invention;
FIG. 3 is a schematic circuit diagram of an energy-saving LED optical depth adjusting circuit according to an embodiment of the present invention;
FIG. 4 is a schematic circuit diagram of an energy-saving LED optical depth adjusting circuit according to an embodiment of the present invention;
FIG. 5 is a schematic circuit diagram of an energy-saving LED optical depth adjusting circuit according to an embodiment of the present invention;
fig. 6 is a schematic circuit diagram of an energy-saving LED light depth adjusting circuit according to an embodiment of the present invention.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
In a preferred embodiment, referring to fig. 1, the energy-saving LED light depth adjusting circuit of this embodiment includes a control circuit 10, an LED driving circuit 20, an LED lamp bead array 30, an LED dimming circuit 40, and a shunt circuit 50, wherein an input end of the LED driving circuit 20 is connected to a power supply; alternatively, the power supply is an alternating current power supply (AC in fig. 1). The first output end of the LED drive circuit 20 is connected with the control circuit 10, and the second output end of the LED drive circuit 20 is connected with the LED lamp bead array 30. Alternatively, the LED lamp bead array 30 includes at least two series LED lamp groups, each series LED lamp group including at least two LED lamp beads. The control circuit 10 is connected with the LED lamp bead array 30 through the LED dimming circuit 40. Control circuit 10 connects shunt circuit 50, and shunt circuit 50 parallel connection LED lamp pearl array 30.
The working principle of the energy-saving LED light depth adjusting circuit is as follows: the LED drive circuit 20 supplies power to the control circuit 10 and the LED lamp bead array 30. The control circuit 10 receives the brightness adjusting instruction, and controls the LED dimming circuit 40 according to the brightness adjusting instruction to adjust the brightness of the LED lamp bead array 30. The control circuit 10 controls the on/off of the shunt circuit 50 according to the brightness (target brightness) corresponding to the brightness adjusting instruction, and if the brightness corresponding to the brightness adjusting instruction is greater than the preset brightness, the control circuit 10 controls the shunt circuit 50 to be switched off without shunting. If the brightness corresponding to the brightness adjusting instruction is not greater than the preset brightness, the control circuit 10 controls the shunting circuit 50 to be switched on for shunting so as to reduce the current passing through the LED lamp bead array 30, and therefore the brightness of the LED lamp bead array 30 can meet the lower requirement. Alternatively, the preset brightness is 1% of the maximum brightness of the LED lamp bead array 30, and can also be set as required.
It can be understood that when the brightness corresponding to the brightness adjustment instruction is greater than the preset brightness, the brightness adjustment can be completed only by using the LED dimming module 40 according to the known characteristics of the LED dimming module 40 (the principle can refer to the prior art), and at this time, the shunt circuit 50 is not required to participate; on the contrary, if the shunt circuit 50 participates in the shunt, the energy is wasted, and the requirement of green environmental protection is not met. When the brightness corresponding to the brightness adjustment instruction is not greater than the preset brightness, the brightness adjustment cannot be completed only by the LED dimming module 40 (the principle can refer to the prior art), which is determined by the characteristics of the LED dimming module 40 itself, and at this time, in order to further reduce the current passing through the LED lamp bead array 30, the shunt circuit 50 needs to be connected into the circuit for shunting, so that the LED lamp bead array 30 reaches lower brightness.
This embodiment realizes the low brightness control demand of LED lamp through setting up the reposition of redundant personnel circuit, does not shunt when the hi-lite simultaneously, practices thrift the electric energy.
In the energy-saving LED light depth adjusting circuit of some embodiments, referring to fig. 2, the shunt circuit 50 includes a shunt resistor R and a switch circuit 501, the shunt resistor R is connected in series with the switch circuit 501 and then connected in parallel with the LED lamp bead array 30, and the control circuit 10 is connected and controls on/off of the switch circuit 501. That is, the control circuit 10 controls the on/off of the switch circuit 501 according to the brightness (target brightness) corresponding to the brightness adjustment instruction, and if the brightness corresponding to the brightness adjustment instruction is greater than the preset brightness, the control circuit 10 controls the switch circuit 501 to be turned off without shunting. If the brightness corresponding to the brightness adjustment instruction is not greater than the preset brightness, the control circuit 10 controls the switch circuit 501 to be switched on for shunting to reduce the current passing through the LED lamp bead array 30, so that the brightness of the LED lamp bead array 30 can meet the lower requirement.
In the energy-saving LED optical depth adjusting circuit of some embodiments, referring to fig. 3, the switch circuit 501 is an MOS transistor Q, and the control circuit 10 controls on/off of the MOS transistor Q. The control circuit 10 is connected with the grid electrode of the MOS tube Q, the drain electrode of the MOS tube Q is connected with the first end of the shunt resistor R, and the second end of the shunt resistor R and the source electrode of the MOS tube are respectively connected to the two ends of the LED lamp bead array 30. It can be understood that when the MOS transistor Q is switched on, the shunt resistor R is connected into the circuit to shunt, and when the MOS transistor Q is switched off, the shunt resistor R is not connected into the circuit, so that shunt is not performed, and electric energy is not wasted.
In the energy-saving LED optical depth adjusting circuit of some embodiments, referring to fig. 4, the switch circuit 501 is an MOS transistor Q, and the control circuit 10 controls on/off of the MOS transistor Q. The control circuit 10 is connected with the grid electrode of the MOS tube Q, the source electrode of the MOS tube Q is connected with the first end of the shunt resistor R, and the second end of the shunt resistor R and the drain electrode of the MOS tube are respectively connected to the two ends of the LED lamp bead array 30. It can be understood that when the MOS transistor Q is switched on, the shunt resistor R is connected into the circuit to shunt, and when the MOS transistor Q is switched off, the shunt resistor R is not connected into the circuit, so that shunt is not performed, and electric energy is not wasted.
In the energy-saving LED light depth adjusting circuit of some embodiments, the control circuit 10 adjusts the access resistance value of the shunt resistor R by controlling the on-off frequency of the MOS transistor Q, thereby achieving adjustment of smaller brightness of the LED lamp bead array 30.
In the energy-saving LED light depth adjusting circuit of some embodiments, referring to fig. 5, the energy-saving LED light depth adjusting circuit of this embodiment further includes an LED color adjusting circuit 60, the control circuit 10 is connected to the LED lamp bead array 30 through the LED color adjusting circuit 60, and the LED color adjusting circuit 60 is used to adjust the color temperature of the LED lamp bead array 30. The control circuit 10 receives the toning instruction, and controls the LED toning circuit 60 to tone the LED bead array 30 according to the toning instruction. The embodiment can realize brightness adjustment and color temperature adjustment, and meets more requirements of users.
In the energy-saving LED light depth adjusting circuit of some embodiments, referring to fig. 6, the energy-saving LED light depth adjusting circuit of this embodiment further includes a brightness adjusting knob 70 connected to the control circuit 10, and a user can generate a brightness adjusting instruction by adjusting the brightness adjusting knob 70.
In the energy-saving LED optical depth adjusting circuit of some embodiments, referring to fig. 6, the energy-saving LED optical depth adjusting circuit of this embodiment further includes a wireless communication module 80 connected to the control circuit 10, where the wireless communication module 80 receives a brightness adjusting instruction sent by an external control terminal; for example, the smart phone sends a brightness adjustment command to the wireless communication module 80. Alternatively, the wireless communication module 80 may be a bluetooth module, a WiFi module, a 3G wireless communication module, a 4G wireless communication module, a 5G wireless communication module, or the like. In the embodiment, the brightness of the LED lamp can be adjusted in a wireless mode by a user, and the use experience of the user is improved.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.
Claims (10)
1. An energy-saving LED light depth adjusting circuit is characterized by comprising a control circuit (10), an LED driving circuit (20), an LED lamp bead array (30), an LED dimming circuit (40) and a shunt circuit (50);
the input end of the LED drive circuit (20) is connected with a power supply, the first output end of the LED drive circuit (20) is connected with the control circuit (10), and the second output end of the LED drive circuit (20) is connected with the LED lamp bead array (30); the control circuit (10) is connected with the LED lamp bead array (30) through the LED dimming circuit (40); the control circuit (10) is connected with the shunt circuit (50), and the shunt circuit (50) is connected with the LED lamp bead array (30) in parallel;
the LED driving circuit (20) supplies power to the control circuit (10) and the LED lamp bead array (30); the control circuit (10) receives a brightness adjusting instruction, and controls the LED dimming circuit (40) according to the brightness adjusting instruction so as to adjust the brightness of the LED lamp bead array (30); the control circuit (10) controls the on-off of the shunt circuit (50), and if the brightness corresponding to the brightness adjusting instruction is greater than the preset brightness, the control circuit (10) controls the shunt circuit (50) to be switched off; and if the brightness corresponding to the brightness adjusting instruction is not greater than the preset brightness, the control circuit (10) controls the shunt circuit (50) to be switched on.
2. The energy-saving LED optical depth adjusting circuit according to claim 1, wherein the shunt circuit (50) shunts a resistor R and a switch circuit (501);
the shunt resistor R and the switch circuit (501) are connected in series and then connected in parallel with the LED lamp bead array (30), and the control circuit (10) is connected with and controls the on-off of the switch circuit (501).
3. The energy-saving LED optical depth adjusting circuit according to claim 2, wherein the switch circuit (501) is an MOS transistor Q, and the control circuit (10) controls the on/off of the MOS transistor Q;
the control circuit (10) is connected with a grid electrode of the MOS tube Q, a drain electrode of the MOS tube Q is connected with a first end of the shunt resistor R, and a second end of the shunt resistor R and a source electrode of the MOS tube are respectively connected to two ends of the LED lamp bead array (30); or
Control circuit (10) are connected MOS pipe Q's grid, MOS pipe Q's source electrode is connected shunt resistance R's first end, shunt resistance R's second end with MOS pipe's drain electrode is connected to respectively the both ends of LED lamp pearl array (30).
4. The energy-saving LED optical depth adjusting circuit according to claim 3, wherein the control circuit (10) adjusts an access resistance value of the shunt resistor R by controlling on-off frequency of the MOS transistor Q.
5. The energy-saving LED light depth adjusting circuit according to claim 1, wherein the LED lamp bead array (30) comprises at least two series LED lamp groups, each series LED lamp group comprising at least two LED lamp beads.
6. The energy-saving LED light depth adjusting circuit according to claim 1, wherein the preset brightness is 1% of the maximum brightness of the LED lamp bead array (30).
7. The energy-saving LED light depth adjusting circuit according to claim 1, wherein the power supply is an AC power supply.
8. The energy-saving LED light depth adjusting circuit according to claim 1, further comprising an LED color adjusting circuit (60), wherein the control circuit (10) is connected to the LED lamp bead array (30) through the LED color adjusting circuit (60), and the LED color adjusting circuit (60) is used for adjusting the color temperature of the LED lamp bead array (30).
9. The energy-saving LED light depth adjusting circuit according to claim 1, further comprising a brightness adjusting knob (70) connected to the control circuit (10), wherein the brightness adjusting knob (70) generates the brightness adjusting instruction.
10. The energy-saving LED light depth adjusting circuit according to claim 1, further comprising a wireless communication module (80) connected to the control circuit (10), wherein the wireless communication module (80) receives the brightness adjusting instruction sent by an external control terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111215096.XA CN114143927A (en) | 2021-10-19 | 2021-10-19 | Energy-saving LED light depth adjusting circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111215096.XA CN114143927A (en) | 2021-10-19 | 2021-10-19 | Energy-saving LED light depth adjusting circuit |
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| CN114143927A true CN114143927A (en) | 2022-03-04 |
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| CN202111215096.XA Pending CN114143927A (en) | 2021-10-19 | 2021-10-19 | Energy-saving LED light depth adjusting circuit |
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