CN218162946U - Power supply control circuit for regulating and controlling intelligent lamp and intelligent lamp - Google Patents
Power supply control circuit for regulating and controlling intelligent lamp and intelligent lamp Download PDFInfo
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- CN218162946U CN218162946U CN202222277444.2U CN202222277444U CN218162946U CN 218162946 U CN218162946 U CN 218162946U CN 202222277444 U CN202222277444 U CN 202222277444U CN 218162946 U CN218162946 U CN 218162946U
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Abstract
The utility model provides a power control circuit and intelligent lamp for regulating and control intelligent lamp satisfies multiple work load demand through designing power control circuit, wherein, power control circuit includes pi type filter circuit, rectifier bridge BR1, and first filter circuit, step-down transformer T1 and constant voltage drive module U1 detect input voltage through constant voltage drive module U1, begin to start and give an instruction, through winding and the turn ratio design to step-down transformer T1, satisfy first load circuit and second load circuit's power supply demand respectively. The scheme also provides an intelligent lamp which is connected to the first load circuit, and MOS tubes Q1-Q5 which are arranged between the power supply control circuit and the intelligent lamp and used for controlling PWM0-PWM4 signals according to different duty ratios are used for realizing working modes of different intelligent lamps, so that the requirements of various lamp bead brightness and different color temperatures and scenes are met.
Description
Technical Field
The utility model belongs to the technical field of the intelligent control circuit technique and specifically relates to a power control circuit and intelligent lamp for regulating and control intelligent lamp is related to.
Background
The existing dimming and color-adjusting LED lamps generally include two types: one is to adopt the conventional light and color adjusting mode, namely only one live wire and one zero line are arranged in the lamp holder, and the application range of the LED lamp is very wide; the other one is a three-section dimming and color-mixing mode, namely two live wires and one zero wire are arranged in the lamp holder, and although the LED lamp is small in application range, the LED lamp is deeply loved by the masses of people due to the fact that the LED lamp can replace the traditional dimming incandescent lamp.
The three-section dimming and color mixing LED lamp is usually arranged on a lamp holder with a three-section selector switch, four programming power supply access modes of two live wires and one zero wire are realized by controlling the three-section selector switch, and the sampling and control circuit determines the working state of LED lamp bead load at the output end according to the logic of power supply access. The current three-section dimming and color-adjusting LED lamp load consists of two lamp beads with different color temperatures, and two different live wires and zero wires can be sequentially and alternately connected to a power supply according to the existing three-section selection switch regulation mode, so that the independent lighting control of the two groups of lamp beads with different color temperatures is realized; and the two live wires and the zero wire can be simultaneously connected to the power supply by controlling the three-section selection switch, so that two groups of lamp beads with different color temperatures are simultaneously lightened for color mixing. At present, in the three-section dimming and color-mixing LED lamp in the prior art, three lamp beads with different color temperatures cannot be respectively adjusted; in addition, the wall switch cannot be used for controlling dimming and color mixing at the same time, and only a special three-section selector switch is used for controlling adjustment, so that the application range is limited to a certain extent.
With the application of the LED becoming more and more extensive, people have more and more diversified requirements on the application of the LED, and the dimming application of the RGB LED lamp bead becomes more and more extensive. RGB lamp pearl is generally adjusted luminance and is realized through the controller, but the electronic circuit structure of current controller is loaded down with trivial details complicated, and the cost is higher, uses inconveniently.
Therefore, how to realize a simple structure is reasonable, effectively simplifies the electronic circuit structure, and low in production cost, convenient to use's controller of adjustable RGB lamp pearl is the technological problem that awaits solution in the industry urgently.
Disclosure of Invention
To the technical problem, the utility model provides a power control circuit and intelligent lamp for regulating and control intelligent lamp through designing out the power control circuit that a section accords with the application demand, controls first load circuit and second load circuit, as long as input commercial power can work, can satisfy the demand of different loads.
Specifically, the utility model provides a power control circuit for regulating and control intelligent lamp, power control circuit includes at least:
one end of the pi-type filter circuit is connected with an alternating current power supply input port, and the other end of the pi-type filter circuit is connected with a rectifier bridge BR1;
one end of the first filter circuit is connected with the rectifier bridge BR1, and the other end of the first filter circuit is connected with a step-down transformer T1;
the step-down transformer T1 comprises a primary side coil and a secondary side coil, the primary side coil comprises a first primary coil T11 and a second primary coil T12, and the first primary coil T11 is connected with the first filter circuit; the second primary coil T12 is connected with the output end of a constant voltage driving module U1, and a VDD pin of the constant voltage driving module U1 is connected to the first filter circuit; the secondary side coil is respectively connected with the first load circuit and the second load circuit.
Wherein, rectifier bridge BR1 includes: a 1 st node, a 2 nd node, a 3 rd node and a 4 th node; the 1 st node and the 2 nd node are respectively connected with a live wire L and a zero line N of an alternating current power supply through the pi-shaped filter circuit; the 4 th node is grounded; the 3 rd node is connected with the first filter circuit.
The first filter circuit includes: the resistor R3, the inductor L1, the capacitor C2 and the capacitor C3; the capacitor C2 and the capacitor C3 are grounded after being connected in series and are respectively connected with the resistor R3 and the inductor L1 in parallel.
The first primary coil T11 is connected to the first filter circuit, and specifically includes:
the first filter circuit is connected with the first primary coil T11 and then connected with a voltage stabilizing component D4, a resistor R4 and a capacitor C4, the first primary coil T11 and the voltage stabilizing component D4, the resistor R4 and the capacitor C4 form a parallel circuit, the capacitor C4 and the resistor R5 are connected in parallel and then connected to the input end of the first primary coil T11, and the output end of the first primary coil T11 is grounded.
The second primary winding T12 is connected with the output end of the constant voltage driving module U1, and the VDD pin of the constant voltage driving module U1 is connected into the first filter circuit, specifically:
the first filter circuit is connected with a resistor R6 and a resistor R7 in series in sequence and then is connected with a node P1; the node P1 is connected with the VDD pin, and is connected to a node P2 through a 7 th output port of the constant voltage driving module U1, the node P2 is respectively connected to an input end of a second primary coil T12 and a voltage stabilizing component D3, and the voltage stabilizing component D3 is connected with the node P1; the output terminal of the second primary winding T12 is grounded.
Wherein, the secondary side coil is connected first load circuit and second load circuit respectively, specifically includes:
one end of the secondary side coil is connected with a voltage stabilizing component D1 and a second filter circuit in series in sequence and then is connected to a first load circuit;
the other end of the secondary side coil is connected with a voltage stabilizing component D5 and a third filter circuit in series in sequence and then is connected to a second load circuit;
and one end of the secondary side coil is grounded.
And the first load circuit and the second load circuit determine a secondary side coil according to a preset winding and turn ratio.
As another preferred, the utility model also provides an intelligent lamp, include:
at least 5 groups of intelligent lamps which are connected in series, wherein one end of each intelligent lamp is connected to the power supply control circuit, and the other end of each intelligent lamp is grounded;
the power supply control circuit adopts the power supply control circuit for regulating and controlling the intelligent lamp.
Wherein, arbitrary intelligent lamp still includes: and the MOS tube Q1 is arranged between the power supply control circuit and the intelligent lamp and is used for controlling the PWM4 signal according to different duty ratios.
The power supply control circuit includes at least:
one end of the pi-type filter circuit is connected with an alternating current power supply input port, and the other end of the pi-type filter circuit is connected with a rectifier bridge BR1;
one end of the first filter circuit is connected with the rectifier bridge BR1, and the other end of the first filter circuit is connected with a step-down transformer T1;
the step-down transformer T1 comprises a primary side coil and a secondary side coil, the primary side coil comprises a first primary coil T11 and a second primary coil T12, and the first primary coil T11 is connected with the first filter circuit; the second primary coil T12 is connected with the output end of a constant voltage driving module U1, and a VDD pin of the constant voltage driving module U1 is connected to the first filter circuit; the secondary side coil is respectively connected with a first load circuit and a second load circuit; the first load circuit is connected with the intelligent lamp; the second load circuit is connected with the Bluetooth module.
To sum up, the utility model provides a power control circuit and intelligent lamp for regulating and control intelligent lamp satisfies multiple work load demand through designing power control circuit, wherein, power control circuit includes pi type filter circuit, rectifier bridge BR1, first filter circuit, step-down transformer T1, and constant voltage drive module U1, detects input voltage through constant voltage drive module U1, begins to start and give-out order, through winding and the turn ratio design to step-down transformer T1, satisfies first load circuit and second load circuit's power supply demand respectively. This scheme still provides an intelligent lamp for connect at first load circuit, and be used for according to the MOS pipe Q1 of different duty ratio control PWM4 signals between power control circuit and intelligent lamp, realize the mode of different intelligent lamps, thereby satisfy the demand of multiple lamp pearl light.
Drawings
Fig. 1 is a power control circuit diagram for regulating and controlling an intelligent lamp.
Fig. 2 is a circuit diagram of a smart lamp as described in fig. 1.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in FIG. 1, a power control circuit for regulating and control intelligent lamp for supply power to multichannel lamp pearl, wherein power control circuit includes at least:
one end of the pi-type filter circuit is connected with an alternating current power supply input port, and the other end of the pi-type filter circuit is connected with a rectifier bridge BR1; the alternating current power supply input port is used for being connected with alternating current 220V of mains supply. And a breaker F1 is connected in series at the input port of the alternating current power supply.
And one end of the first filter circuit is connected with the rectifier bridge BR1, and the other end of the first filter circuit is connected with the step-down transformer T1.
The step-down transformer T1 comprises a primary side coil and a secondary side coil, the primary side coil comprises a first primary coil T11 and a second primary coil T12, and the first primary coil T11 is connected with the first filter circuit; the second primary coil T12 is connected with the output end of a constant voltage driving module U1, and a VDD pin of the constant voltage driving module U1 is connected to the first filter circuit; the secondary side coil is respectively connected with the first load circuit and the second load circuit.
Rectifier bridge BR1 comprises 1 st diode, 2 nd diode, 3 rd diode, 4 th diode, and 4 diodes are two liang continuous, and is further, rectifier bridge BR1 still includes: a 1 st node, a 2 nd node, a 3 rd node and a 4 th node; the 1 st node and the 2 nd node are respectively connected with a live wire L and a zero line N of an alternating current power supply through the pi-shaped filter circuit; the 4 th node is grounded; the 3 rd node is connected with the first filter circuit.
The pi-type filter circuit comprises a line filter LF3 connected with an alternating current power supply end, a line filter LF2 connected with a rectifier bridge BR1 end, a capacitor C1, a resistor R1 and a resistor R2, wherein the capacitor C1, the resistor R1 and the resistor R2 are connected with the line filter LF3 and the line filter LF2 in parallel. Wherein, the resistor R1 and the resistor R2 are connected in series.
The first filter circuit includes: the resistor R3, the inductor L1, the capacitor C2 and the capacitor C3; the capacitor C2 and the capacitor C3 are grounded after being connected in series and are respectively connected with the resistor R3 and the inductor L1 in parallel.
The first primary coil T11 is connected to the first filter circuit, and specifically includes:
the first filter circuit is connected with the first primary coil T11 and then connected with a voltage stabilizing component D4, a resistor R4 and a capacitor C4, the first primary coil T11 and the voltage stabilizing component D4, the resistor R4 and the capacitor C4 form a parallel circuit, the capacitor C4 and the resistor R5 are connected in parallel and then connected to the input end of the first primary coil T11, and the output end of the first primary coil T11 is grounded.
The second primary winding T12 is connected with the output end of the constant voltage driving module U1, and the VDD pin of the constant voltage driving module U1 is connected into the first filter circuit, specifically:
the first filter circuit is connected with a resistor R6 and a resistor R7 in series in sequence and then is connected with a node P1; the node P1 is connected with the VDD pin, and is connected to a node P2 through a 7 th output port of the constant voltage driving module U1, the node P2 is respectively connected to an input end of the second primary coil T12 and a voltage stabilizing component D3, and the voltage stabilizing component D3 is connected to the node P1; the node P2 is connected to the input end of the second primary coil T12 after being connected with the resistor R15, wherein the resistor R15 is also connected with the variable resistor R16 in parallel, and the variable resistor R16 is used for finely adjusting output voltage, so that the circuit can achieve better matching parameters. The node P2 is connected with the resistor R14 through the variable resistor R16 and the resistor R15, and then is connected to the input end of the voltage regulator D3, and the output end of the second primary coil T12 is grounded.
Preferably, constant voltage drive module U1 adopts arbitrary kind of control chip can satisfy the circuit demand for as power master control IC in this circuit the utility model discloses in do not do the restriction. Specifically, the constant voltage driving module U1 includes a 1 st pin, i.e., a VDD pin, as a power supply pin, a 2 nd pin, a 3 rd pin, a 4 th pin, a 5 th pin, a 6 th pin, and a 7 th pin. The power supply pin filter circuit is characterized in that a VDD pin is used for being connected with a first filter circuit through a node P1, a power supply pin filter circuit of a constant voltage driving module U1VDD pin is additionally arranged between the VDD pin and the node P1, the power supply pin filter circuit is connected to the VDD pin after being connected with 2 filter capacitors, namely a capacitor C7 and a filter capacitor CE5 in parallel, and the other end of the power supply pin filter circuit is grounded. The 2 nd pin is connected to a node P2. The 3 rd pin is connected with a compensation circuit, wherein the compensation circuit is composed of a resistor R21, a capacitor C9 and a capacitor C10, and the connection mode is as follows: the resistor R21 is connected in series with the capacitor C10 and then connected in parallel with the capacitor C9 and then connected to the ground. The 4 th pin is connected with a current limiting circuit, then is connected with a capacitor C8 in series, and then is connected to the 5 th pin and the 6 th pin; the current limiting circuit consists of three parallel current limiting resistors RS1, RS2 and RS 3. The 7 th pin is used for connecting the node P2, wherein a power output voltage stabilizing circuit is additionally arranged between the 7 th pin and the node P2, and the power output voltage stabilizing circuit is formed by connecting a resistor R17 and a capacitor C4 in parallel.
Wherein, the secondary side coil is connected first load circuit and second load circuit respectively, specifically includes:
one end of the secondary side coil is connected with a voltage stabilizing component D1 and a second filter circuit in series in sequence and then is connected to a first load circuit;
the other end of the secondary side coil is connected with a voltage stabilizing component D5 and a third filter circuit in series in sequence and then is connected to a second load circuit;
and one end of the secondary side coil is grounded.
The second filter circuit is used as a rectifier filter circuit of the step-down transformer T1 and is output to the first load circuit, specifically, a parallel circuit which is composed of a filter capacitor CE1, a filter capacitor CE2, a resistor R12 and a capacitor C11 which are sequentially connected in parallel is respectively connected to two ends of the secondary side coil, and the first load circuit is additionally provided with a voltage stabilizing component D1, a resistor R9 and a capacitor C6 which are connected with the voltage stabilizing component D1 in parallel.
The third filter circuit is used as a rectification filter circuit which is output to the second load circuit by the step-down transformer T1 and specifically comprises a rectification filter part circuit and a step-down part, wherein the rectification filter part circuit comprises a filter capacitor CE3 and a capacitor C12 which are connected in parallel and a voltage stabilizing component D5 which is connected in series with the rectification filter part circuit, and two ends of the voltage stabilizing component D5 are additionally provided with parallel resistors R20 and C7; the input end of the second load circuit is additionally provided with a voltage reduction part, preferably, the voltage reduction part adopts a voltage reduction IC to control the voltage output to the second load circuit.
And the first load circuit and the second load circuit determine a secondary side coil according to a preset winding and turn ratio.
Alternating current voltage is input from an L-N port, the alternating current voltage passes through a filter circuit and then reaches a bridge rectifier BR1, a power supply is converted into direct current voltage from 220Vac, the voltage at two ends of the CBB1 is equal to the input alternating current multiplied by 1.414, at the moment, the U3 unit circuit detects the input voltage, starts and sends out an instruction, voltage reduction is realized through the winding and turn ratio design of the transformers T1 and T1 through the magnetoelectric conversion principle, and a stable direct current voltage is obtained after filtering through CE1 and CE 2.
As another preferred, as shown in fig. 2, the present invention further provides an intelligent lamp, comprising:
at least 5 groups of intelligent lamps which are connected in series, wherein one end of each intelligent lamp is connected to the power supply control circuit, and the other end of each intelligent lamp is grounded;
the power control circuit adopts the power control circuit for regulating and controlling the intelligent lamp.
Wherein, arbitrary intelligent lamp still includes: and the MOS tube Q1 is arranged between the power supply control circuit and the intelligent lamp and is used for controlling the PWM4 signal according to different duty ratios. When a constant voltage is applied to the positive electrode of the lamp bead, the negative electrode is connected with the MOS tube and returns to the ground (low potential) of the voltage, for example: the group of circuits is controlled by a MOS tube Q1. When the PWM4 control signal is low voltage (usually zero volts), Q1 is turned off, the current cannot pass through Q1, the path is closed, and the street lamp bead is extinguished. When PWM4 is at high potential, usually 3.3V, Q1 is opened, and the lamp bead of the channel is lighted. The same logic is used to control other channels to light if necessary. If all colors need to be lightened, all PWM signals only need to output high voltage. If the light mixing effect is required to be achieved, only one PWM signal with different duty ratios is provided for each channel.
The power supply control circuit includes at least:
one end of the pi-type filter circuit is connected with an alternating current power supply input port, and the other end of the pi-type filter circuit is connected with a rectifier bridge BR1;
one end of the first filter circuit is connected with the rectifier bridge BR1, and the other end of the first filter circuit is connected with a step-down transformer T1;
the step-down transformer T1 comprises a primary side coil and a secondary side coil, the primary side coil comprises a first primary coil T11 and a second primary coil T12, and the first primary coil T11 is connected with the first filter circuit; the second primary coil T12 is connected with the output end of a constant voltage driving module U1, and a VDD pin of the constant voltage driving module U1 is connected to the first filter circuit; the secondary side coil is respectively connected with a first load circuit and a second load circuit; the first load circuit is connected with the intelligent lamp; the second load circuit is connected with the Bluetooth module.
In addition, the functional modules in the embodiments of the present invention may be integrated together to form an independent part, or each module may exist alone, or two or more modules may be integrated to form an independent part.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
The above-mentioned embodiments only represent one of the embodiments of the present invention, and the description thereof is more specific and detailed, but it should not be understood that the scope of the present invention is limited thereby. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides a power control circuit for regulating and control intelligent lamp for supply power to multichannel lamp pearl, its characterized in that includes at least:
one end of the pi-type filter circuit is connected with an alternating current power supply input port, and the other end of the pi-type filter circuit is connected with a rectifier bridge BR1;
one end of the first filter circuit is connected with the rectifier bridge BR1, and the other end of the first filter circuit is connected with a step-down transformer T1;
the step-down transformer T1 comprises a primary side coil and a secondary side coil, the primary side coil comprises a first primary coil T11 and a second primary coil T12, and the first primary coil T11 is connected with the first filter circuit; the second primary coil T12 is connected with the output end of a constant voltage driving module U1, and a VDD pin of the constant voltage driving module U1 is connected to the first filter circuit; the secondary side coil is respectively connected with the first load circuit and the second load circuit.
2. The power control circuit for regulating and controlling the smart lamp as claimed in claim 1, wherein the rectifier bridge BR1 comprises: a 1 st node, a 2 nd node, a 3 rd node and a 4 th node; the 1 st node and the 2 nd node are respectively connected with a live wire L and a zero line N of an alternating current power supply through the pi-shaped filter circuit; the 4 th node is grounded; the 3 rd node is connected with the first filter circuit.
3. The power control circuit of claim 2, wherein the first filter circuit comprises: the resistor R3, the inductor L1, the capacitor C2 and the capacitor C3; and the capacitor C2 and the capacitor C3 are grounded after being connected in series and are respectively connected with the resistor R3 and the inductor L1 in parallel.
4. A power control circuit for regulating a smart lamp as claimed in claim 3, wherein said first primary winding T11 is connected to said first filter circuit, further comprising:
the first filter circuit is connected with the first primary coil T11 and then connected with a voltage stabilizing component D4, a resistor R4 and a capacitor C4, the first primary coil T11 and the voltage stabilizing component D4, the resistor R4 and the capacitor C4 form a parallel circuit, the capacitor C4 and the resistor R5 are connected in parallel and then connected to the input end of the first primary coil T11, and the output end of the first primary coil T11 is grounded.
5. The power control circuit according to claim 4, wherein the second primary winding T12 is connected to an output terminal of a constant voltage driving module U1, and a VDD pin of the constant voltage driving module U1 is connected to the first filter circuit, specifically:
the first filter circuit is connected with a resistor R6 and a resistor R7 in series in sequence and then is connected with a node P1; the node P1 is connected with the VDD pin, and is connected to a node P2 through a 7 th output port of the constant voltage driving module U1, the node P2 is respectively connected to an input end of the second primary coil T12 and a voltage stabilizing component D3, and the voltage stabilizing component D3 is connected to the node P1; the output terminal of the second primary winding T12 is grounded.
6. The power control circuit for regulating and controlling the smart lamp according to claim 5, wherein the secondary side coil is respectively connected to a first load circuit and a second load circuit, and specifically comprises:
one end of the secondary side coil is connected with a voltage stabilizing component D1 and a second filter circuit in series in sequence and then is connected to a first load circuit;
the other end of the secondary side coil is connected with a voltage stabilizing component D5 and a third filter circuit in series in sequence and then is connected to a second load circuit;
and one end of the secondary side coil is grounded.
7. The power control circuit of claim 6, wherein the first load circuit and the second load circuit define the secondary winding with a predetermined winding and turn ratio.
8. A smart lamp, comprising:
at least 5 groups of intelligent lamps which are connected in series, wherein one end of each intelligent lamp is connected to the power supply control circuit, and the other end of each intelligent lamp is grounded;
the power supply control circuit adopts the power supply control circuit for regulating and controlling the intelligent lamp as claimed in any one of claims 1 to 7.
9. The smart lamp of claim 8, wherein any of the smart lamps further comprises: and the MOS tube Q1 is arranged between the power supply control circuit and the intelligent lamp and is used for controlling the PWM4 signals according to different duty ratios.
10. The smart lamp of claim 9, wherein the power control circuit comprises at least:
one end of the pi-type filter circuit is connected with an alternating current power supply input port, and the other end of the pi-type filter circuit is connected with a rectifier bridge BR1;
one end of the first filter circuit is connected with the rectifier bridge BR1, and the other end of the first filter circuit is connected with the step-down transformer T1;
the step-down transformer T1 comprises a primary side coil and a secondary side coil, the primary side coil comprises a first primary coil T11 and a second primary coil T12, and the first primary coil T11 is connected with the first filter circuit; the second primary coil T12 is connected with the output end of a constant voltage driving module U1, and a VDD pin of the constant voltage driving module U1 is connected to the first filter circuit; the secondary side coil is respectively connected with a first load circuit and a second load circuit; the first load circuit is connected with the intelligent lamp; the second load circuit is connected with the Bluetooth module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222277444.2U CN218162946U (en) | 2022-08-29 | 2022-08-29 | Power supply control circuit for regulating and controlling intelligent lamp and intelligent lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222277444.2U CN218162946U (en) | 2022-08-29 | 2022-08-29 | Power supply control circuit for regulating and controlling intelligent lamp and intelligent lamp |
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| Publication Number | Publication Date |
|---|---|
| CN218162946U true CN218162946U (en) | 2022-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222277444.2U Active CN218162946U (en) | 2022-08-29 | 2022-08-29 | Power supply control circuit for regulating and controlling intelligent lamp and intelligent lamp |
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| Country | Link |
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| CN (1) | CN218162946U (en) |
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- 2022-08-29 CN CN202222277444.2U patent/CN218162946U/en active Active
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