CN111491417B - Microwave control dimming circuit and lamp - Google Patents
Microwave control dimming circuit and lamp Download PDFInfo
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- CN111491417B CN111491417B CN202010050814.1A CN202010050814A CN111491417B CN 111491417 B CN111491417 B CN 111491417B CN 202010050814 A CN202010050814 A CN 202010050814A CN 111491417 B CN111491417 B CN 111491417B
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Abstract
The embodiment of the invention discloses a microwave control dimming circuit and a lamp, wherein the circuit comprises: the light-dimming device comprises a light-emitting unit, an induction unit and a light-dimming driving unit, wherein the induction unit is arranged on the light-emitting unit, and the light-dimming driving unit is connected with the light-emitting unit and the induction unit; the light-emitting unit comprises a plurality of light-emitting bodies connected in series, and is used for receiving input driving voltage which is used for driving the light-emitting bodies to realize light emission; the induction unit is used for acquiring environmental parameters of the light-emitting unit and generating corresponding adjusting parameters based on the environmental parameters, wherein the environmental parameters comprise a manned state and an unmanned state; the dimming driving unit is used for providing driving voltage and receiving adjusting parameters, and adjusting the brightness of the light-emitting unit based on the adjusting parameters. In addition, the embodiment of the invention also discloses a lamp using the microwave control dimming circuit. By adopting the invention, the dimming circuit can be simplified, and the cost is saved.
Description
Technical Field
The invention relates to the technical field of lamps, in particular to a microwave control dimming circuit and a lamp.
Background
Along with the progress and development of the intelligent home technology, more and more intelligent home products are applied to all aspects of life, so that the life style of people is improved and enriched, and the life of people is more convenient and intelligent. For example, when the lamp is applied, the lamp can be turned on or turned off in a voice control or light control mode, and brightness can be adjusted by sensing the surrounding environment, so that electric energy is saved.
However, the existing control mode of the lamp for adjusting the brightness by sensing the surrounding environment needs to be designed into a power supply circuit for supplying power to the sensing chip, so that the control cost of the lamp is increased.
Therefore, how to reduce the cost investment of the lamp in the intelligent sensing brightness control is an urgent problem to be solved in the prior art.
Disclosure of Invention
In view of this, the invention provides a microwave control dimming circuit and a lamp, which are used for solving the problem of high cost investment in the control process of the lamp in the prior art.
The technical scheme of the embodiment of the invention is as follows:
a microwave controlled dimming circuit, comprising: the dimming device comprises a light emitting unit, an induction unit and a dimming driving unit, wherein the induction unit is arranged on the light emitting unit, and the dimming driving unit is connected with the light emitting unit and the induction unit; wherein the content of the first and second substances,
the light-emitting unit comprises a plurality of light-emitting bodies connected in series, and is used for receiving an input driving voltage which is used for driving the light-emitting bodies to realize light emission;
the induction unit is used for acquiring environmental parameters of the light emitting units and generating corresponding adjusting parameters based on the environmental parameters, wherein the environmental parameters comprise a manned state and an unmanned state;
the dimming driving unit is used for providing the driving voltage, receiving the adjusting parameter and adjusting the brightness of the light emitting unit based on the adjusting parameter.
Optionally, the microwave control dimming circuit further includes: and the adjustable unit is connected with the induction unit and the dimming driving unit and is used for adjusting based on the environmental parameters.
Optionally, the adjustable unit includes a variable resistor, and the dimming driving unit adjusts the brightness of the light emitting unit based on a resistance value of the variable resistor.
Optionally, the sensing unit includes a microwave chip, and the microwave control dimming circuit acquires the environmental parameter through the microwave chip, and determines the adjustment parameter based on the environmental parameter.
Optionally, the light emitter is an LED lamp.
Optionally, the microwave control dimming circuit may adjust the brightness of the LED lamp between 10% and 100% based on the adjustment parameter.
Optionally, the driving voltage of the dimming driving unit is 1V to 10V.
Optionally, the dimming driving unit includes a power module, a sampling module, a control module, and a switch module, an output end of the power module is connected to the sampling module, and the control module is connected to the sampling module and the switch module;
the power supply module is used for providing the driving voltage;
the sampling module is used for sampling the driving voltage to obtain a sample voltage;
the control module is used for receiving the sample voltage and generating a corresponding driving control signal based on the sample voltage;
the switch module is used for receiving the driving control signal and controlling the connection state between the dimming driving unit and the light emitting unit based on the driving control signal, wherein the connection state comprises a conduction state and a cut-off state.
A luminaire comprising a microwave controlled dimming circuit as described above.
Optionally, the luminaire comprises a light source board;
the light-emitting units and the sensing units are arranged on the light source board, and the sensing units supply power through voltage drops of a preset number of the luminous bodies.
The embodiment of the invention has the following beneficial effects:
after the microwave control dimming circuit and the lamp are adopted, the induction unit is arranged on the light-emitting unit, so that the volume of the whole microwave control dimming circuit can be reduced; the light-emitting unit comprises a plurality of luminous bodies, the sensing unit supplies power through the voltage drop of the luminous bodies connected in series in a preset number, and an additional driving circuit is not required to be designed to drive the sensing unit to work; meanwhile, the dimming driving unit connected with the sensing unit and the light emitting unit is arranged, the light emitting body is driven to emit light through the dimming driving unit, the brightness is adjusted according to the environmental parameters acquired by the sensing unit, and the energy-saving effect can be achieved. In the embodiment, the induction unit and the light emitting unit are arranged on the same light source plate, so that the overall size of the lamp can be saved; on the other hand, the voltage drop of the luminous bodies with the preset number on the luminous unit is used for supplying power to the sensing unit, so that the input cost can be effectively reduced, and after the environmental parameters are acquired through the sensing unit, the brightness of the lamp can be adjusted according to actual requirements through the dimming driving unit, and different environmental requirements are met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Wherein:
fig. 1 is a schematic structural diagram of the microwave-controlled dimming circuit in one embodiment;
FIG. 2 is a circuit diagram of the microwave controlled dimming circuit in one embodiment;
fig. 3 is a schematic structural diagram of the microwave-controlled dimming circuit in another embodiment;
fig. 4 is a schematic structural diagram of the dimming driving unit in an embodiment.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to solve the problem that in the prior art, when a lamp is controlled, especially a microwave induction lamp, and the surrounding environment of the lamp is induced, a separate driving circuit needs to be arranged to realize the driving operation of corresponding induction equipment, so that the circuit design cost of the lamp is increased, in the embodiment, a microwave control dimming circuit is especially provided to realize that the lamp can adjust the brightness according to the surrounding environment.
As shown in fig. 1, the microwave control dimming circuit 100 includes a light emitting unit 101, a sensing unit 102, and a dimming driving unit 103; the sensing unit 102 is disposed on the light emitting unit 101, and the dimming driving unit 103 is connected to the light emitting unit 101 and the sensing unit 102.
Actually, the dimming driving unit 103 is connected to the light emitting unit 101 and the sensing unit 102 through wires, or the dimming driving unit 103 is provided with a serial port, a USB interface, and the like and then is connected to the light emitting unit 101 and the sensing unit 102 through a specific connection line.
In a specific embodiment, the light emitting unit 101 includes a plurality of serially connected light emitters, and the light emitting unit 101 is configured to receive an input driving voltage; after the light emitting unit 101 receives the driving voltage, the driving voltage is used to drive all the light emitting bodies to emit light, so as to realize the light emitting function of the lamp. The light emitting body may be an LED lamp or other device capable of emitting light when energized.
The sensing unit 102 supplies power through a preset number of serially connected luminous bodies; specifically, because the illuminants are connected in series, each illuminant has a certain voltage drop, and based on this, the sensing unit 102 can be connected to two ends of a preset number of illuminants capable of providing enough driving voltage according to the voltage required by the driving sensing unit 102, so as to realize the power supply operation of the sensing unit; thus, it is not necessary to additionally design a driving circuit for driving the sensing unit 102.
The sensing unit 102 is configured to collect environmental parameters of the light emitting unit 101, and generate corresponding adjustment parameters based on the environmental parameters, where the environmental parameters include a presence state and an absence state; in practical applications, when the environmental parameter collected by the sensing unit is in a manned state, an adjustment parameter for increasing the brightness of the light-emitting unit 101 is generated, and when the environmental parameter collected by the sensing unit is in an unmanned state, an adjustment parameter for decreasing the brightness of the light-emitting unit 101 is generated.
In one embodiment, the sensing unit 102 includes a microwave chip, and the microwave control dimming circuit 100 collects the environmental parameters through the microwave chip and determines the adjustment parameters based on the environmental parameters.
When the microwave control dimming circuit 100 supplies power to the lamp, the dimming driving unit 103 supplies driving voltage, and at the moment, the driving operation of the light emitting unit 101 is realized, the light emitting body emits light, and the lamp realizes the illumination function; and after the sensing unit 102 acquires the real-time environmental parameters, the corresponding adjusting parameters are generated, and the dimming driving unit 103 receives the corresponding adjusting parameters and adjusts the brightness of the light emitting unit 101 based on the adjusting parameters.
In one embodiment, the dimming driving unit 103 may output a driving voltage having a magnitude of 1V to 10V.
In one embodiment, as shown in fig. 2, the light emitting unit 101 is composed of several LED lamps connected in series, the sensing unit 102 is implemented by a microwave sensing module, and the dimming driving unit 103 is implemented by a dimming driving module, wherein the dimming driving module may be, for example, LA304 dimming driving module.
Specifically, when the light emitting unit 101 includes n LED lamps, the anode of the first LED lamp is connected to the LED + interface in the dimming driving module, the n LED lamps are connected in series in such a manner that the cathode of the previous LED lamp is connected to the anode of the next LED lamp in sequence, and the cathode of the last LED lamp is connected to the LED-interface in the dimming driving module. At this time, if the sensing unit 102 is implemented by the microwave sensing module, and the working voltage of the microwave sensing module is between 10V and 15V, and if the tube voltage of one LED lamp is between 5.6V and 6.6V, the positive terminal of the power input of the microwave sensing module can be connected to the positive terminal of the penultimate LED lamp, and the negative terminal is connected to the negative terminal of the last LED lamp, so that the sensing unit 102 is driven by the voltage drop of the preset number of LED lamps, and the normal operation of the sensing unit 102 is ensured.
In other embodiments, if the tube voltage of one LED lamp is between 2.8V and 3.5V, the positive terminal of the power input of the sensing unit 102 is connected to the positive terminal of the fourth last LED lamp, and the negative terminal is connected to the negative terminal of the last LED lamp.
The microwave control dimming circuit 100 of the present embodiment supplies power to the light emitting unit 101 through the dimming driving unit 103, collects the environmental parameters of the lamp through the sensing unit 102, and supplies power to the sensing unit 102 through the voltage drop of the plurality of light emitting bodies; the dimming control circuit of the lamp can be simplified, meanwhile, the good control of the brightness of the lamp is achieved, namely, the brightness of the lamp is controlled according to actual requirements, and the effects of reducing cost input and saving electric energy can be achieved to a certain extent.
In one embodiment, as shown in fig. 3, in order to adjust the brightness of the light emitting unit 101, an adjustable unit 104 is provided, which is connected to the sensing unit 102 and the dimming driving unit 103. Specifically, after the sensing unit 102 acquires the environmental parameter, a corresponding adjustment parameter is generated, and the dimming driving unit 103 performs an adjustment operation on the adjustable unit 104 according to the adjustment parameter, so as to implement a brightness adjustment operation on the light emitting unit 101.
In one embodiment, as shown in fig. 2, the adjustable unit 104 includes a variable resistor R, and the dimming driving unit 103 adjusts the brightness of the light emitting unit 101 based on the resistance of the variable resistor R; that is, in the process of adjusting the brightness of the light emitting unit 101, the microwave control dimming circuit 100 generates corresponding adjustment parameters to the dimming driving module after the microwave sensing module obtains the environment parameters of the lamp, and the dimming driving module adjusts the resistance value of the variable resistor R, thereby implementing the brightness adjustment operation on all the LED lamps.
Specifically, when the environmental parameters acquired by the microwave induction module are in a manned state, the dimming driving module adjusts the LED lamp to be in strong light irradiation, and when the environmental parameters acquired by the microwave induction module are in an unmanned state, the dimming driving module adjusts the LED lamp to be in weak light irradiation; the microwave control dimming circuit 100 can adjust the brightness of the LED lamp between 10% and 100% based on the adjustment parameter.
The microwave control dimming circuit 100 of the embodiment can adjust the brightness of the lamp in different proportions, that is, the brightness of the lamp can be adjusted according to actual environmental parameters, so that the effect of only weak light irradiation when no person is present and strong light irradiation when someone is present is achieved.
In one embodiment, as shown in fig. 4, the dimming driving unit 103 includes a power module 1031, a sampling module 1032, a control module 1033, and a switching module 1034; the output end of the power supply module 1031 is connected to the sampling module 1032, and the control module 1033 is connected to the sampling module 1032 and the switch module 1034;
specifically, the power module 1031 is configured to provide a driving voltage, and the sampling module 1032 is configured to sample the driving voltage to obtain a sample voltage; the control module 1033 is configured to receive the sample voltage and generate a corresponding driving control signal based on the sample voltage; the switch module 1034 is configured to receive the driving control signal and control a connection state between the dimming driving unit 103 and the light emitting unit 101 based on the driving control signal, where the connection state includes an on state and an off state.
In a specific embodiment, as shown in fig. 4, if the power module 1031 provides too large driving voltage, that is, too large driving voltage acquired by the sampling module 1032, the control module 1033 sends a disconnected driving control signal to the switch module 1034, and the switch module 1034 is disconnected, at this time, the dimming driving unit 103 cannot supply power to the light emitting unit 101; if the driving voltage provided by the margin module 1031 is normal, the control module 1033 sends a closed driving control signal to the switch module 1034, and at this time, the dimming driving unit 103 is connected to the light emitting unit 101; it can be seen that based on the sampling module 1032, the control module 1033 and the switch module 1034, circuit failure due to overcurrent or overvoltage can be avoided;
in one embodiment, the power module 1031 is a power supply battery such as a lithium battery; the sampling module 1032 may employ a current/voltage sensor; the control module 1033 is realized by a single chip microcomputer; the switch module 1034 may be implemented by a relay or the like. Of course, this is only a preferred embodiment of the present invention, and the present invention is not limited and fixed.
The microwave control dimming circuit 100 of the present embodiment can realize the adjustment of the lamp according to the actual environmental parameters based on the combination of the above-mentioned components such as the light emitting unit 101, the sensing unit 102, the dimming driving unit 103, and the adjustable unit 104, and reduce the cost input of the microwave control dimming circuit.
In this embodiment, a lamp including the microwave control dimming circuit is also provided. In one embodiment, as shown in fig. 2, the lamp further includes a light source board, wherein the light emitting unit 101 and the sensing unit 102 are disposed on the light source board, and the sensing unit 102 supplies power through voltage drop of a preset number of light emitters.
In a specific embodiment, the lamp does not need to be provided with a driving circuit of the sensing unit 102, so that the design cost of a circuit in the lamp can be reduced, and the light emitting unit 101 and the sensing unit 102 are arranged on the same light source board, so that the volume of the whole lamp can be effectively reduced.
In addition, it should be noted that the specific circuit structure and principle of the lamp for implementing microwave control dimming are consistent with those of the microwave control dimming circuit, and specific reference may be made to the above contents, which are not described herein again.
After the microwave control dimming circuit and the lamp are adopted, the induction unit is arranged on the light-emitting unit, so that the volume of the whole microwave control dimming circuit can be reduced; the light-emitting unit comprises a plurality of luminous bodies, the sensing unit supplies power through the voltage drop of the luminous bodies connected in series in a preset number, and an additional driving circuit is not required to be designed to drive the sensing unit to work; meanwhile, the dimming driving unit connected with the sensing unit and the light emitting unit is arranged, the light emitting body is driven to shine through the dimming driving unit, the brightness is adjusted according to the environmental parameters acquired by the sensing unit, and the energy-saving effect can be achieved. In the embodiment, the induction unit and the light emitting unit are arranged on the same light source plate, so that the overall size of the lamp can be saved; on the other hand, the voltage drop of the luminous bodies with the preset number on the luminous unit is used for supplying power to the sensing unit, so that the input cost can be effectively reduced, and after the environmental parameters are acquired through the sensing unit, the brightness of the lamp can be adjusted according to actual requirements through the dimming driving unit, and different environmental requirements are met.
While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (6)
1. A microwave controlled dimming circuit, comprising: the dimming device comprises a light emitting unit, an induction unit and a dimming driving unit, wherein the induction unit is arranged on the light emitting unit, and the dimming driving unit is connected with the light emitting unit and the induction unit; wherein, the first and the second end of the pipe are connected with each other,
the light-emitting unit comprises a preset number of serially connected light-emitting bodies and is used for receiving an input driving voltage, and the driving voltage is used for driving the light-emitting bodies to emit light;
the induction units are used for acquiring environmental parameters of the light-emitting units and generating corresponding adjusting parameters based on the environmental parameters, wherein the environmental parameters comprise a manned state and an unmanned state;
the dimming driving unit is used for providing the driving voltage, receiving the adjusting parameter and adjusting the brightness of the light emitting unit based on the adjusting parameter; wherein the content of the first and second substances,
the microwave control dimming circuit further comprises: the adjustable unit is connected with the sensing unit and the dimming driving unit and is used for adjusting based on the environmental parameters;
the adjustable unit comprises a variable resistor, and the dimming driving unit realizes brightness adjustment of the light emitting unit based on the resistance value of the variable resistor;
the induction unit comprises a microwave chip, the microwave control dimming circuit acquires the environmental parameters through the microwave chip and determines the adjusting parameters based on the environmental parameters;
the luminous body is an LED lamp.
2. The microwave-controlled dimming circuit of claim 1, wherein the microwave-controlled dimming circuit is capable of dimming the LED lamp between 10% and 100% based on the adjustment parameter.
3. The microwave-controlled dimming circuit according to claim 2, wherein the driving voltage of the dimming driving unit is 1V to 10V.
4. The microwave-controlled dimming circuit according to claim 3, wherein the dimming driving unit comprises a power module, a sampling module, a control module and a switch module, wherein an output end of the power module is connected with the sampling module, and the control module is connected with the sampling module and the switch module;
the power supply module is used for providing the driving voltage;
the sampling module is used for sampling the driving voltage to obtain a sample voltage;
the control module is used for receiving the sample voltage and generating a corresponding driving control signal based on the sample voltage;
the switch module is used for receiving the driving control signal and controlling the connection state between the dimming driving unit and the light emitting unit based on the driving control signal, wherein the connection state comprises a conduction state and a cut-off state.
5. A luminaire comprising the microwave controlled dimming circuit of any one of claims 1 to 4.
6. The luminaire of claim 5, wherein the luminaire comprises a light source board;
the light-emitting units and the sensing units are arranged on the light source board, and the sensing units supply power through voltage drops of a preset number of the luminous bodies.
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| CN202010050814.1A CN111491417B (en) | 2020-01-17 | 2020-01-17 | Microwave control dimming circuit and lamp |
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| CN202010050814.1A CN111491417B (en) | 2020-01-17 | 2020-01-17 | Microwave control dimming circuit and lamp |
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| CN111491417A CN111491417A (en) | 2020-08-04 |
| CN111491417B true CN111491417B (en) | 2022-10-04 |
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| CN116068455A (en) * | 2023-01-28 | 2023-05-05 | 宝邑(深圳)照明科技有限公司 | Lamp life prediction method, system, electronic equipment and medium |
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| TWI545990B (en) * | 2011-01-31 | 2016-08-11 | 財團法人工業技術研究院 | Multi-function lighting system and controlling method thereof |
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| JP2013030415A (en) * | 2011-07-29 | 2013-02-07 | Toshiba Lighting & Technology Corp | Lighting control device with sensor and lighting apparatus with sensor |
| CN202979406U (en) * | 2012-12-07 | 2013-06-05 | 深圳市皓璟照明科技有限公司 | Double-level brightness intelligent-control LED illumination circuit |
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