CN219514248U - Dimming circuit, driver and lamp capable of realizing power grouping - Google Patents
Dimming circuit, driver and lamp capable of realizing power grouping Download PDFInfo
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- CN219514248U CN219514248U CN202223205078.6U CN202223205078U CN219514248U CN 219514248 U CN219514248 U CN 219514248U CN 202223205078 U CN202223205078 U CN 202223205078U CN 219514248 U CN219514248 U CN 219514248U
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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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Abstract
The utility model discloses a dimming circuit, a driver and a lamp capable of realizing power supply grouping. The circuit comprises a power supply end, a power supply positive electrode end and at least two power supply negative electrode ends, or at least two power supply positive electrode ends and at least two power supply negative electrode ends, so as to form connection ends of at least two groups of power supply loops; the dimming chip is connected with the positive end of the power supply end and comprises a signal end and a driving end; the system comprises a power supply, a signal end, a power supply positive end, a grouping module and a dimming module, wherein the grouping module and the dimming module are connected between the signal end and the power supply positive end; the grouping module is arranged between the power end and the dimming chip and is used for switching different power supply loops; the dimming module comprises a knob regulator and a voltage stabilizing unit, wherein the voltage stabilizing unit is connected in series between the positive terminal of the power supply and the signal terminal and comprises a voltage control terminal; the knob regulator is connected between the positive terminal of the power supply and the voltage control terminal of the voltage stabilizing unit. The dimming circuit realizes the functions through a simpler circuit structure, and can reduce the installation and configuration cost of a lamp by a user.
Description
Technical Field
The present utility model relates to the field of lamp control, and in particular, to a dimming circuit, a driver and a lamp capable of implementing power grouping.
Background
In some larger space scenarios, the lighting needs to be used more, for example, in larger living rooms or business places, different lighting needs may exist in each area, and thus the lighting of each area needs to be controlled separately.
In order to realize the independent control of the lamplight of each area, the individual wiring and wiring planning are generally required to be carried out on each area according to the illumination requirement of the area, and the lamps needing to be independently controlled in the area are connected with the wiring and installed after the corresponding dimming is finished, and the lamps on the area are controlled by being connected with independent switches.
However, the separate wiring mode is generally required to carry out wiring planning in advance and to arrange wiring before decoration, and the lamps and lanterns must also be installed when arranging wiring, so that users cannot group in the follow-up, and cannot carry out separate dimming on a single lamp, and the wiring is long in time consumption, large in difficulty and high in wiring cost. However, the wireless networking can certainly improve the installation difficulty and increase the configuration cost of lamp products.
Disclosure of Invention
The utility model provides a dimming circuit, a driver and a lamp capable of realizing power supply grouping, wherein the dimming circuit can be used for grouping and dimming after being installed, and the installation and configuration cost of a user to the lamp can be reduced.
The dimming circuit capable of realizing power grouping in the utility model is used for driving connection with the LED module,
the circuit comprises:
the power supply end comprises a power supply positive electrode end and at least two power supply negative electrode ends, or at least two power supply positive electrode ends and at least two power supply negative electrode ends, so as to form connecting ends of at least two groups of power supply loops; and
the dimming chip is connected with the power supply positive electrode end of the power supply end and comprises a signal end and a driving end, and the driving end is used for being connected with the LED module;
a grouping module and a dimming module are also connected between the signal end and the positive end of the power supply;
the grouping module is arranged between the power end and the dimming chip and is used for switching different power supply loops;
the dimming module comprises a knob regulator and a voltage stabilizing unit, wherein the voltage stabilizing unit is connected in series between the positive terminal of the power supply and the signal terminal and comprises a voltage control terminal; the knob regulator is connected between the positive terminal of the power supply and the voltage control terminal of the voltage stabilizing unit, so that the dimming control of the dimming chip is realized by regulating the output voltage value at the output terminal of the voltage stabilizing unit.
Optionally, the grouping module includes a dial switch or a single pole double throw switch.
Optionally, the grouping module is a dial switch;
the number of the power supply negative poles is at least two, and the power supply positive poles are connected with the power supply input ends of the dimming chips; the power supply negative electrode end is respectively connected with at least two pins of the dial switch, and the power supply negative electrode end is connected with the grounding end of the circuit through the dial switch; or alternatively
The number of the power supply positive terminals is at least two, the power supply positive terminals are respectively connected with at least two pins of the dial switch, and the power supply negative terminals are connected with the power supply input terminal of the dimming chip through the dial switch; the power supply negative terminal is connected with the grounding terminal of the circuit.
Optionally, the voltage stabilizing unit includes:
the first transistor is connected between the power end and the dimming module and comprises a voltage control end, and the voltage control end is connected with the knob adjuster to be controlled by the knob adjuster.
Optionally, the voltage stabilizing unit further comprises a first voltage dividing resistor and a second voltage dividing resistor;
one end of the first voltage dividing resistor is connected with the adjustable end of the knob adjuster, and the other end of the first voltage dividing resistor is connected with one end of the knob adjuster and the control end of the first transistor;
one end of the second voltage dividing resistor is connected with one end of the first voltage dividing resistor, and the other end of the second voltage dividing resistor is connected with the grounding end.
Optionally, the voltage stabilizing unit and the positive electrode output end of the rectifying module further include:
optionally, the voltage stabilizing unit and the positive electrode of the second connection end further include:
the voltage reducing module is used for reducing the voltage input by the positive end of the power supply and inputting the voltage to the voltage stabilizing unit.
Optionally, the dimming circuit further includes:
the input end of the anti-reverse connection module is respectively connected with the positive end and the negative end of the power supply, the positive output end of the anti-reverse connection module is connected with the power supply input end of the dimming chip, and the negative output end of the anti-reverse connection module is connected with the grounding end of the circuit.
Optionally, a second voltage stabilizing tube is further arranged between the dimming module and the signal end, a cathode of the second voltage stabilizing tube is connected with an output end of the dimming module, and an anode of the second voltage stabilizing tube is connected with the signal end.
Optionally, a filtering module is further disposed between the dimming module and the signal end.
The present utility model also provides a driver comprising:
the light-adjusting circuit comprises an input end and an output end, wherein the input end of the light-adjusting circuit is used for being connected with at least two groups of power supplies, and the output end of the light-adjusting circuit is used for being connected with an LED light source;
the dimming circuit is a dimming circuit capable of realizing power grouping according to any one of the above.
The utility model also provides a lamp, comprising:
the connecting ends of at least two groups of power supplies;
the driver comprises a dimming circuit, and the input end of the dimming circuit is connected with the connecting ends of the two groups of power supplies; and
the LED light source is connected with the output end of the driver;
the dimming circuit is a dimming circuit capable of realizing power grouping according to any one of the above.
Therefore, the dimming circuit, the driver and the lamp capable of realizing power supply grouping are provided with the grouping module, so that a user can realize grouping switching by only arranging a plurality of circuits on the same circuit and selecting different power supply loops by using the grouping module, and the user does not need to carry out wiring design on the different power supply loops, and can select the power supply loops according to actual conditions after finishing decoration. And through setting up knob regulator and steady voltage unit in the module department of adjusting luminance, can make lamps and lanterns also can carry out the individual dimming after the group, with group module cooperation back easier realization abundant dimming control combination. The dimming circuit realizes the functions through a simpler circuit structure, and can reduce the installation and configuration cost of a lamp by a user.
Drawings
Fig. 1 is a schematic circuit diagram of a dimming circuit capable of implementing power grouping according to an embodiment of the present utility model.
Fig. 2 is a schematic diagram of another circuit structure of a power supply terminal according to an embodiment of the present utility model.
Fig. 3 is a schematic circuit structure diagram of a grouping module and an anti-reverse connection module according to an embodiment of the present utility model.
Fig. 4 is a schematic circuit diagram of a voltage stabilizing unit and a knob adjuster according to an embodiment of the present utility model.
Fig. 5 is a schematic diagram of another circuit structure of the voltage stabilizing unit and the knob adjuster according to the embodiment of the present utility model.
Fig. 6 is a schematic circuit diagram of a buck module according to an embodiment of the present utility model.
Fig. 7 is a schematic diagram of another circuit structure of a dimming circuit capable of implementing power grouping according to an embodiment of the present utility model.
Fig. 8 is a schematic structural diagram of a driver according to an embodiment of the present utility model.
Fig. 9 is a schematic structural diagram of a lamp according to an embodiment of the present utility model.
Detailed Description
The preferred embodiments of the present utility model will be described in detail below with reference to the attached drawings so that the advantages and features of the present utility model will be more readily understood by those skilled in the art, thereby more clearly defining the scope of the present utility model.
Referring to the drawings, wherein like reference numbers refer to like elements throughout, the principles of the present utility model are illustrated in an appropriate computing environment. The following description is based on illustrative embodiments of the utility model and should not be taken as limiting other embodiments of the utility model not described in detail herein.
Referring to fig. 1, fig. 1 shows a circuit structure of a dimming circuit capable of implementing power grouping according to an embodiment of the present utility model.
The dimming circuit comprises a power supply terminal 1 and a dimming chip 2.
The power supply terminal 1 includes a power supply positive terminal 11 and at least two power supply negative terminals (12 a,12 b) to form at least two sets of power supply connection terminals. The power positive terminal 11 and the different power negative terminals (12 a,12 b) form different control loops, and each control loop can use independent electronic switching devices to control the on and off of each lamp on the current loop.
Specifically, the positive power terminal 11 may be connected to an ac power supply, a dc power supply, or other power supply modules, and may be implemented by using contacts or terminals, where different negative power terminals (12 a,12 b) may be disposed adjacent to or in different positions, and the implementation manner of the positive power terminal 11 is not limited by the present utility model.
The dimming chip 2 includes a power supply terminal and a signal terminal DIM, and the power supply terminal of the dimming chip 2 is connected to the power supply positive terminal 11 to provide a corresponding power supply for the dimming chip 2. The dimming chip 2 further comprises a driving end (led+, LED-) for connection with the LED module for driving the operation of the LED module. The change of the voltage signal input by the signal terminal DIM can control the dimming chip 2 to perform dimming operation, and it can be understood that the dimming chip 2 can adopt a controllable dimming chip 2 common in the art, and the specific model is not limited.
The grouping module 3 is disposed between the power supply terminal 1 and the dimming chip 2, and is used for switching different power supply loops. The grouping module 3 may use a switch commonly known in the art to implement a grouping switching function, for example, a dial switch or a single-pole double-throw switch may be used, so that a user can perform a corresponding grouping switching operation on the dial switch or the single-pole double-throw switch according to actual situations on the lamp.
In general, a plurality of power supply loops may be arranged at the same wiring position, so that the lamps can be installed in groups by selecting corresponding loops during decoration.
Specifically, in one case, as shown in fig. 1, the number of power negative terminals of the power terminal 1 is at least two, and the power positive terminal is connected with the power input terminal of the dimming chip 2; the power supply negative terminal is connected with at least two pins of the dial switch respectively, and the power supply negative terminal is connected with the grounding end GND of the circuit through the dial switch.
In another case, as shown in fig. 2, there are at least two power supply positive terminals (11 a,11 b), the power supply positive terminals (11 a,11 b) are respectively connected with at least two pins of the dial switch, and the power supply positive terminal 12 is connected with the power supply input terminal of the dimming chip 2 through the dial switch; the power supply negative terminal 12 is connected to the ground GND of the circuit.
It will be appreciated that the number of the positive power terminals and the negative power terminals in the power terminal 1 may be determined according to the actual wiring manner of the electric wires, and two, three or more than three positive power terminals 11 may be used to connect with different power circuits, which is not limited in the present utility model.
Referring back to fig. 1, the dimming module 4 includes a knob regulator 41 and a voltage stabilizing unit 42, wherein the voltage stabilizing unit 42 is connected in series between a positive terminal of a power supply and a signal terminal DIM, and includes a voltage control terminal; the knob adjuster 41 is connected between the positive terminal of the power supply and the voltage control terminal of the voltage stabilizing unit 42 to realize dimming control of the dimming chip 2 by adjusting the output voltage value at the output terminal of the voltage stabilizing unit 42.
The knob adjuster 41 is actually used as a knob type adjustable rheostat, and the output voltage of the voltage stabilizing unit 42 can be controlled by a circuit control means, so that a user can adjust the voltage value of the signal end DIM output by the voltage stabilizing unit 42 to the dimming chip 2 by adjusting the knob adjuster 41, thereby realizing the dimming operation of the LED module.
In one embodiment, the voltage stabilizing unit 42 includes a first transistor connected between the positive power supply terminal 11 and the dimming module 4, and includes a voltage control terminal connected to the knob adjuster 41 to be controlled by the knob adjuster 41. It can be understood that the voltage stabilizing unit 42 may use transistors such as transistors and MOS transistors as voltage stabilizing components, and may also use three-terminal voltage stabilizing sources or voltage stabilizing tubes to ensure stability of the voltage value output to the signal terminal DIM through the voltage stabilizing unit 42, and the circuit structure of the specific voltage stabilizing unit 42 may be determined according to practical situations.
Therefore, the dimming circuit capable of realizing power supply grouping can realize grouping switching by setting the grouping module, a user only needs to set a plurality of circuits on the same circuit, and the grouping module is utilized to select different power supply loops, so that the user does not need to carry out wiring design on the different power supply loops, and the power supply loops can be selected according to actual conditions after finishing decoration. And through setting up knob regulator and steady voltage unit in the module department of adjusting luminance, can make lamps and lanterns also can carry out the individual dimming after the group, with group module cooperation back easier realization abundant dimming control combination. The dimming circuit realizes the functions through a simpler circuit structure, and can reduce the installation and configuration cost of a lamp by a user.
Referring to fig. 3, a circuit structure of a grouping module and an anti-reverse module provided by an embodiment of the utility model is shown.
As shown in fig. 3, the grouping module may implement a grouping switching function by using a dial switch KT 1. The power supply terminal comprises a power supply positive terminal U+ and a power supply negative terminal, and the power supply negative terminal comprises a first terminal U1-, a second terminal U2-and a third terminal U3-. The first terminal U1-, the second terminal U2-and the third terminal U3-are connected to three different power supply circuits, respectively. The power supply end of the power supply positive end U+ dimming chip is connected, the first end U1-, the second end U2-and the third end U3-are connected with a dial switch and are connected with the grounding end of the circuit through the dial switch, and the dimming circuit and the negative output end of the LED module form a power supply loop through being connected to the grounding end and the first end U1-, the second end U2-or the third end U3-.
In an embodiment, a reverse connection preventing module 5 is further disposed at one side of the grouping module, and the reverse connection preventing module 5 is disposed between the power supply terminal and the dimming chip. Specifically, the input end of the reverse connection preventing module 5 is connected with the positive end and the negative end of the power supply respectively. The positive electrode output end of the anti-reverse connection module 5 is connected with the power input end of the dimming chip, and the negative electrode output end of the anti-reverse connection module 5 is connected with the grounding end of the circuit. Of course, the specific implementation of the anti-reverse module 5 may also be implemented in other ways commonly used in the art, besides the way shown in fig. 3. Through setting up prevent reverse connection module 5 for the user need not to distinguish the polarity of power end, easy to assemble, and can improve the safety in utilization of lamps and lanterns.
The output end of the anti-reverse connection module 5 may also be provided with a filter capacitor EC1 to improve circuit reliability.
Referring to fig. 4, a circuit structure of a voltage stabilizing unit and a knob regulator according to an embodiment of the utility model is shown.
As shown in fig. 4, in an embodiment, the voltage stabilizing unit includes a first transistor, and further includes a first voltage dividing resistor R1 and a second voltage dividing resistor R2. One end of the first voltage dividing resistor R1 is connected with the adjustable end of the knob adjuster VR1, and the other end of the first voltage dividing resistor R1 is connected with one end of the knob adjuster VR1 and connected with the control end of the first transistor. One end of the second voltage dividing resistor R2 is connected to one end of the first voltage dividing resistor R1, and the other end is connected to the ground GND.
Specifically, the first transistor is a triode Q3, the knob adjuster VR1 is connected between the positive terminal of the power supply and the base electrode of the triode Q3, the adjustable terminal of the knob adjuster VR1 is connected with the base electrode of the triode Q3 through the first voltage dividing resistor R1, the collector electrode of the triode Q3 is connected with the positive terminal V1 of the power supply, and the emitter electrode of the triode Q3 is connected with the signal terminal of the dimming chip as the output terminal Vout.
When the user adjusts the knob adjuster VR1, the resistance of the knob adjuster VR1 changes, so that the base voltage input to the triode Q3 also changes along with the change of the first voltage dividing resistor R1 and the second voltage dividing resistor R2, and finally the voltage value output to the signal end of the dimming chip is adjustable.
It can be understood that the resistance values of the first voltage dividing resistor R1 and the second voltage dividing resistor R2, the model of the triode Q3, and the like can be determined according to actual requirements, which is not limited by the present utility model.
Referring to fig. 5, another circuit structure of a voltage stabilizing unit and a knob adjuster according to an embodiment of the utility model is shown.
As shown in fig. 5, in another embodiment, the voltage stabilizing unit may include a first transistor Q1, where the first transistor Q1 is connected between the power supply terminal v+ and the signal terminal of the dimming chip, and the voltage control terminal of the first transistor Q1 is connected to the knob regulator VR2 to be controlled by the knob regulator VR 2. The knob adjuster VR2 can adjust the voltage value input to the voltage control terminal of the first transistor Q1, thereby controlling the output voltage of the voltage stabilizing unit. Of course, the first transistor Q1 may be implemented by a triode or a MOS transistor, and the specific specification and model of the first transistor Q1 may be determined according to requirements.
Further, in order to provide a more stable and effective output voltage regulation manner, the voltage stabilizing unit further includes a three-terminal QV1, wherein the three-terminal QV1 is disposed between the voltage control terminal of the first transistor Q1 and the ground terminal GND, and includes a reference terminal connected to the adjustable terminal of the knob adjuster VR2, and the knob adjuster VR2 is connected between the output terminal of the dimming module and the ground terminal GND. Through adding three-terminal QV1 for output voltage adjusts more stably, is favorable to promoting the dimming effect.
Specifically, the first transistor Q1 may be an NPN transistor, a collector of which is connected to the power supply terminal v+ through a resistor R3 and to a base of the first transistor Q1 through a resistor R4, an emitter of the first transistor Q1 is connected to one voltage division terminal of the knob adjuster VR2 through a resistor R5, and the other voltage division terminal of the knob adjuster VR2 is connected to the ground terminal GND through a resistor R6. The voltage regulating end of the knob adjuster VR2 is connected with the reference end of the three-end QV 1.
It can be appreciated that the specific implementation manner of the voltage stabilizing unit can be determined according to practical situations, and the implementation manner of the voltage stabilizing unit is not limited by the present utility model.
Through knob regulator VR2 and voltage stabilizing unit's cooperation for voltage stabilizing unit's output voltage can be controlled by knob regulator VR2 and realize adjustably, and discerns this output voltage through the signal terminal of adjusting luminance the chip and change, thereby realize the function of adjusting luminance to the LED light source group.
In an embodiment, a zener diode ZD1 is further connected in series between the dimming module and the color matching module, a cathode of the zener diode ZD1 is connected with an output end of the dimming module, and an anode of the zener diode ZD1 is connected with an input end B of the color matching module, so as to further provide a more stable voltage and current input effect for a signal end of the dimming chip, and reduce an influence of a change of the knob adjuster VR2 on voltage and current stability.
Referring to fig. 6, a circuit structure of a buck module according to an embodiment of the utility model is shown.
As shown in fig. 6, in an embodiment, the voltage reducing module further includes the voltage reducing module on the basis of fig. 4, and the voltage reducing module is configured to reduce the voltage input at the positive terminal v+ of the power supply and then input the reduced voltage to the voltage stabilizing unit. The buck module includes a second transistor Q2, and the second transistor Q2 may be a transistor or a MOS transistor, and in this embodiment, an NPN transistor is used. The collector of the second transistor Q2 is connected to the positive terminal of the power supply through a resistor R7, and is connected to the base of the second transistor Q2 through a resistor R8, and the base of the second transistor Q2 is also connected to the ground terminal GND through a zener diode ZD 2. The emitter of the second transistor Q2 is connected to the voltage input terminal V1 of the voltage stabilizing unit, and the voltage at the positive terminal of the power supply can be reduced by the voltage reducing module, so that the voltages input to the signal terminals of the voltage stabilizing unit and the dimming chip meet the required values.
It can be appreciated that the specific implementation manner of the buck module can be various, and different buck modules can be adopted according to actual requirements, which is not limited by the present utility model.
As shown in fig. 7, the dimming circuit includes a power terminal including a power positive terminal and three power negative terminals, the dimming chip U1 is connected to the power positive terminal of the power terminal, and includes a signal terminal DIM and a driving terminal, and the driving terminal is used for being connected to the LED module; the grouping module KT1 and the dimming module 4 are also connected between the signal terminal DIM and the positive terminal of the power supply. The grouping module KT1 is arranged between the power end and the dimming chip U1 and is used for switching different power supply loops. The dimming module 4 includes a knob adjuster VR1 and a voltage stabilizing unit connected in series between a positive power supply terminal and a signal terminal DIM, including a voltage control terminal. The knob regulator VR1 is connected between the positive terminal of the power supply and the voltage control terminal of the voltage stabilizing unit, so as to realize the dimming control of the dimming chip U1 by regulating the output voltage value at the output terminal of the voltage stabilizing unit.
The power supply terminal comprises a power supply positive terminal U+ and a power supply negative terminal, and the power supply negative terminal comprises a first terminal U1-, a second terminal U2-and a third terminal U3-. The first terminal U1-, the second terminal U2-and the third terminal U3-are connected to three different power supply circuits, respectively. The knob adjuster VR1 is switched between different power supply negative ends, so that follow-up grouping of lamps is achieved, and advanced wiring for complex circuits is not needed.
The dimming circuit further comprises an anti-reverse connection module 5 and a voltage reduction module 6, and reverse connection of a power supply can be avoided through the anti-reverse connection module 5, so that normal operation of the circuit is protected, and installation difficulty is further reduced. Further, the step-down module 6 cooperates with the dimming module 4 to ensure the voltage reliability of the signal terminal DIM input to the dimming chip U1. And, the output end of the dimming module 4 is also provided with a zener diode ZD3, and the zener diode ZD3 can further improve the stability of the circuit.
The dimming circuit can enable the brightness of the lamp to be independently adjustable even after the lamp is installed through the knob adjuster VR1 in the dimming module 4, so that rich dimming control combination is realized between the dimming circuit and the grouping module KT 1.
Referring to fig. 8, a structure of a driver according to an embodiment of the present utility model is shown.
As shown in fig. 8, the driver 10 includes a dimming circuit 11, including an input terminal and an output terminal, the input terminal of the dimming circuit 11 is used for being connected with at least two groups of power supplies, and the output terminal of the dimming circuit 11 is used for being connected with an LED light source. The specific implementation of the dimming circuit 11 may refer to the dimming circuit 11 capable of implementing power grouping in any one of the embodiments shown in fig. 1 to 7, which is not described in detail herein.
In one embodiment, the driver 10 further includes a DC-DC circuit that can provide a more stable power output. Of course, the driver 10 may include other circuit structures in addition to this, which is not limited by the present utility model.
It can be seen that, after the driver 10 adopts the dimming circuit 11 capable of realizing power grouping, the lamps can be individually dimmed after grouping, and a rich dimming control combination can be realized more easily after matching with the grouping module. The driver 10 of the present utility model realizes the above functions with a relatively simple circuit structure, and can reduce the installation and configuration costs for users.
Referring to fig. 9, a structure of a lamp provided by an embodiment of the utility model is shown.
As shown in fig. 9, the lamp 20 includes at least two sets of connection terminals for power supply, a driver 21, and an LED light source 22.
The driver 21 includes a dimming circuit 211, and an input terminal of the dimming circuit 211 is connected to connection terminals of two sets of power supplies. The LED light source 22 is connected to the output of the driver 21. The specific implementation of the dimming circuit 211 may refer to the dimming circuit 211 capable of implementing power grouping in any one of the embodiments shown in fig. 1 to 7, which is not described in detail in the present disclosure.
The lamp 20 may be a magnetic rail lamp, and the grouping module may be used to implement power circuit selection and switching of the lamp 20 by connecting power lines of multiple different power circuits on the magnetic rail. Of course, in addition to this, the lamp 20 may further include a housing, a heat dissipation assembly, a magnetic rail, and other hardware structures commonly known in the art, and the structural configuration thereof is not limited.
By adopting the lamp 20 comprising the dimming circuit 211 capable of realizing power grouping as described in any of the embodiments of fig. 1-7, the independent wiring design of different lamps 20 is not required in the installation process, and a user only needs to arrange a plurality of power loops in the corresponding area before finishing, so that the lamps can be grouped and dimmed automatically in the later period, the installation and configuration cost of the user to the lamps 20 is reduced, and the popularization of products is facilitated.
The term "module" as used herein may be a software or hardware object executing on the computing system. The different components, modules, engines, and services described herein may be implemented as objects on the computing system. The apparatus and methods described herein may be implemented in software, but may also be implemented in hardware, and are within the scope of the present utility model.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.
Claims (11)
1. Dimming circuit capable of realizing power grouping for driving connection with an LED module, characterized in that the circuit comprises:
the power supply end comprises a power supply positive electrode end and at least two power supply negative electrode ends, or at least two power supply positive electrode ends and at least two power supply negative electrode ends, so as to form connecting ends of at least two groups of power supply loops; and
the dimming chip is connected with the power supply positive electrode end of the power supply end and comprises a signal end and a driving end, and the driving end is used for being connected with the LED module;
a grouping module and a dimming module are also connected between the signal end and the positive end of the power supply;
the grouping module is arranged between the power end and the dimming chip and is used for switching different power supply loops;
the dimming module comprises a knob regulator and a voltage stabilizing unit, wherein the voltage stabilizing unit is connected in series between the positive terminal of the power supply and the signal terminal and comprises a voltage control terminal; the knob regulator is connected between the positive terminal of the power supply and the voltage control terminal of the voltage stabilizing unit, so that the dimming control of the dimming chip is realized by regulating the output voltage value at the output terminal of the voltage stabilizing unit.
2. The power grouping enabled dimming circuit of claim 1, wherein the grouping module comprises a dial switch or a single pole double throw switch.
3. The dimming circuit capable of realizing power grouping according to claim 2, wherein the grouping module is a dial switch;
the number of the power supply negative poles is at least two, and the power supply positive poles are connected with the power supply input ends of the dimming chips; the power supply negative electrode end is respectively connected with at least two pins of the dial switch, and the power supply negative electrode end is connected with the grounding end of the circuit through the dial switch; or alternatively
The number of the power supply positive terminals is at least two, the power supply positive terminals are respectively connected with at least two pins of the dial switch, and the power supply negative terminals are connected with the power supply input terminal of the dimming chip through the dial switch; the power supply negative terminal is connected with the grounding terminal of the circuit.
4. The power grouping enabled dimming circuit of claim 1, wherein the voltage stabilizing unit comprises:
the first transistor is connected between the power end and the dimming module and comprises a voltage control end, and the voltage control end is connected with the knob adjuster to be controlled by the knob adjuster.
5. The dimming circuit capable of realizing power grouping according to claim 4, wherein the voltage stabilizing unit further comprises a first voltage dividing resistor and a second voltage dividing resistor;
one end of the first voltage dividing resistor is connected with the adjustable end of the knob adjuster, and the other end of the first voltage dividing resistor is connected with one end of the knob adjuster and the control end of the first transistor;
one end of the second voltage dividing resistor is connected with one end of the first voltage dividing resistor, and the other end of the second voltage dividing resistor is connected with the grounding end.
6. The power grouping enabled dimming circuit of claim 4, wherein the voltage stabilizing unit further comprises a three terminal voltage stabilizing source;
the three-terminal voltage stabilizing source is arranged between the voltage control end and the grounding end of the first transistor and comprises a reference end, the reference end is connected with the adjustable end of the knob regulator, and the knob regulator is connected between the output end of the dimming module and the grounding end.
7. The power grouping enabled dimming circuit of claim 1 or 4, wherein the voltage stabilizing unit further comprises, between the voltage stabilizing unit and the positive terminal of the power source:
the voltage reducing module is used for reducing the voltage input by the positive end of the power supply and inputting the voltage to the voltage stabilizing unit.
8. The power grouping enabled dimming circuit of claim 1, wherein the dimming circuit further comprises:
the input end of the anti-reverse connection module is respectively connected with the positive end and the negative end of the power supply, the positive output end of the anti-reverse connection module is connected with the power supply input end of the dimming chip, and the negative output end of the anti-reverse connection module is connected with the grounding end of the circuit.
9. The dimming circuit capable of realizing power grouping according to claim 1, wherein a second voltage stabilizing tube is further arranged between the dimming module and the signal end, a cathode of the second voltage stabilizing tube is connected with an output end of the dimming module, and an anode of the second voltage stabilizing tube is connected with the signal end.
10. A driver, the driver comprising:
the light-adjusting circuit comprises an input end and an output end, wherein the input end of the light-adjusting circuit is used for being connected with at least two groups of power supplies, and the output end of the light-adjusting circuit is used for being connected with an LED light source;
wherein the dimming circuit is a dimming circuit capable of implementing power grouping as claimed in any one of claims 1-8.
11. A light fixture, comprising:
the connecting ends of at least two groups of power supplies;
the driver comprises a dimming circuit, and the input end of the dimming circuit is connected with the connecting ends of the two groups of power supplies; and
the LED light source is connected with the output end of the driver;
wherein the dimming circuit is a dimming circuit capable of implementing power grouping as claimed in any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223205078.6U CN219514248U (en) | 2022-11-29 | 2022-11-29 | Dimming circuit, driver and lamp capable of realizing power grouping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223205078.6U CN219514248U (en) | 2022-11-29 | 2022-11-29 | Dimming circuit, driver and lamp capable of realizing power grouping |
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| Publication Number | Publication Date |
|---|---|
| CN219514248U true CN219514248U (en) | 2023-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223205078.6U Active CN219514248U (en) | 2022-11-29 | 2022-11-29 | Dimming circuit, driver and lamp capable of realizing power grouping |
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| Country | Link |
|---|---|
| CN (1) | CN219514248U (en) |
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