CN214281714U - Light regulating circuit - Google Patents

Light regulating circuit Download PDF

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Publication number
CN214281714U
CN214281714U CN202120538710.5U CN202120538710U CN214281714U CN 214281714 U CN214281714 U CN 214281714U CN 202120538710 U CN202120538710 U CN 202120538710U CN 214281714 U CN214281714 U CN 214281714U
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China
Prior art keywords
light
module
coupled
control
brightness
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CN202120538710.5U
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Chinese (zh)
Inventor
张中奎
毛强民
刘涛
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Shenzhen Helian Electronics Co ltd
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Shenzhen Helian Electronics Co ltd
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Priority to CN202120538710.5U priority Critical patent/CN214281714U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Abstract

The application relates to a light adjusting circuit, which comprises an input module, a control module and a brightness adjusting module, wherein the input module is used for inputting a light adjusting signal, the control module is coupled with the input module and used for receiving the light adjusting signal and outputting a control signal, the brightness adjusting module comprises a driving power supply and a light-emitting part coupled with the driving power supply, and the brightness adjusting module is coupled with the control module; the control module comprises a PWM signal generator and a control unit, the PWM signal generator is used for receiving a control signal and outputting a duty ratio signal, and the control unit is coupled with the PWM signal generator and used for receiving the duty ratio signal and controlling the current passing through the light-emitting piece to increase or decrease so as to increase or decrease the brightness of the light-emitting piece. The lamp brightness adjusting device has the effects of achieving stable and reliable adjustment of the lamp brightness and reducing flickering of the lamp light.

Description

Light regulating circuit
Technical Field
The application relates to the field of circuits, in particular to a light adjusting circuit.
Background
At present, in daily life and work, light both can be adjusted according to the light and shade of environment, also can play the effect of backing up the atmosphere, for example need the light of different luminance or colour temperature in the bedroom to reach the effect that improves comfort level in the life of house, dim light when need not the highlight simultaneously, also can realize environmental protection and energy saving.
Related dimming technology adopts silicon controlled rectifier to dim light, and the silicon controlled rectifier changes the effective value of output voltage by adjusting the voltage division ratio of internal resistance, thereby realizing the dimming function.
With respect to the related art among the above, the applicant believes that the following disadvantages exist: the dimming of the thyristor destroys the waveform of the sine wave and can generate interference signals, thereby causing flicker in the adjusting process.
SUMMERY OF THE UTILITY MODEL
In order to realize stable and reliable regulation light luminance, reduce the scintillation of light, the application provides a light regulating circuit.
The application provides a light regulating circuit adopts following technical scheme:
a light adjusting circuit comprises an input module, a control module and a brightness adjusting module, wherein the input module is used for inputting a light adjusting signal, the control module is coupled with the input module and is used for receiving the light adjusting signal and outputting a control signal, the brightness adjusting module comprises a driving power supply and a light-emitting element coupled with the driving power supply, and the brightness adjusting module is coupled with the control module;
the control module comprises a PWM signal generator and a control unit, the PWM signal generator is used for receiving a control signal and outputting a duty ratio signal, and the control unit is coupled with the PWM signal generator and used for receiving the duty ratio signal and controlling the current passing through the light-emitting piece to increase or decrease so as to increase or decrease the brightness of the light-emitting piece.
By adopting the technical scheme: the input module inputs a required light adjusting signal, and the control module changes an output control signal after receiving the light adjusting signal so as to adjust a duty ratio signal output by the PWM signal generator; the control unit is controlled by a duty ratio signal sent by the PWM signal generator, and controls the current of the loop of the light-emitting piece to increase or decrease according to the duty ratio signal, so that the brightness of the light-emitting piece can be increased or decreased, the aim of linear light adjustment is fulfilled, the flicker of light of the light-emitting piece is reduced, and the control unit is stable and reliable and has a good light adjustment effect.
Optionally, a color temperature adjusting unit is coupled to the brightness adjusting module, the color temperature adjusting unit includes a warm light element for emitting warm light, the warm light element is coupled to the driving power source, the color temperature adjusting unit is coupled to the control unit, and the control unit is coupled to the PWM signal generator and configured to receive the duty ratio signal and control the current passing through the warm light element to increase or decrease, so as to increase or decrease the brightness of the warm light element.
By adopting the technical scheme: the color temperature adjusting unit is provided with a color temperature adjusting function, so that the temperature of the lamplight can be adjusted according to the requirement, and the effect of improving the comfort level in the household life is achieved; the warm light piece and the light emitting piece share the same driving power supply and the same control module, so that the circuit structure can be simplified, the application of a circuit is facilitated, and the cost is saved.
Optionally, the control unit includes a brightness control subunit and a color temperature control subunit, where the brightness control subunit and the color temperature control subunit are respectively coupled to the light emitting element and the light warming element;
the brightness control subunit comprises a MOSFET tube U3, a fifth resistor R5 and a sixth resistor R6, the drain of the MOSFET tube U3 is coupled to the light emitting element, the gate is coupled to the output terminal of the PWM signal generator through the fifth resistor R5, the source is grounded, and the gate of the MOSFET tube U3 is grounded through the sixth resistor R6.
By adopting the technical scheme: the light emitting component and the light warming component are respectively controlled by the brightness control subunit and the color temperature control subunit, so that the brightness and the color temperature can be independently adjusted or simultaneously adjusted, and the application range is enlarged; the MOSFET is a voltage control type device, has small conduction voltage drop when being conducted, low power consumption and stable performance, can control the electric field effect of the input loop to control the current of the output loop, further improves the stability of linear dimming and reduces the flicker of light of a light-emitting element.
Optionally, the mobile terminal further includes a communication unit, wherein a transmitting end of the communication unit is coupled to the input module, and a receiving end of the communication unit is coupled to the control module.
By adopting the technical scheme: the communication unit is convenient for control module, input module's independent installation in the setting, and in practical application, communication unit can adopt wired communication or wireless communication's mode, and the transmitting terminal is installed in the position far away with the receiving terminal detachable to this reasonable position that sets up input module, thereby convenient to use person uses.
Optionally, a power module is coupled to the control module, an input end of the power module is electrically connected to an external power source, an output end of the power module is coupled to the control module, and the power module is used for supplying power to the control module.
By adopting the technical scheme: the power module is arranged to provide electric energy for the control module, and is directly connected to an external power supply, so that the stability of power supply is improved.
Optionally, a start-stop switch is arranged on the input module, and the start-stop switch is coupled between the input end of the power module and an external power supply.
By adopting the technical scheme: the on-off of the start-stop switch can control the power module to be opened or closed, when the power module does not work, no control signal is output, the light-emitting piece does not work, the management and the use of the whole light are facilitated, and the electric energy can be saved when the light-emitting piece is not used.
Optionally, a brightness adjusting switch and a color temperature adjusting switch are arranged on the input module, and the brightness adjusting switch and the color temperature adjusting switch are used for inputting the light adjusting signal to the transmitting end of the communication unit.
By adopting the technical scheme: the brightness adjusting switch, the color temperature adjusting switch and the start-stop switch are uniformly arranged on one input module, so that unified management is facilitated, and the use and the light control of an operator are facilitated.
Optionally, a first resistor R1 and a second resistor R2 are coupled to two ends of the light emitting element, respectively, another end of the first resistor R1 is connected to an output end of the driving power source, and another end of the second resistor R2 is coupled to the control module.
By adopting the technical scheme: the first resistor R1 and the second resistor R2 have the function of voltage division, so that stable operation of the light-emitting element is facilitated, and the stability of the operation of the whole circuit is further improved.
Drawings
Fig. 1 is a circuit schematic diagram of an embodiment of the present application.
Description of reference numerals: 1. a control module; 11. a communication unit; 12. a PWM signal generator; 13. a control unit; 131. a brightness control subunit; 132. a color temperature control subunit; 2. an input module; 21. a start-stop switch; 22. a brightness adjusting switch; 23. a color temperature adjusting switch; 3. a power supply module; 4. a brightness adjustment module; 41. a drive power supply; 42. a light emitting member; 5. a color temperature adjusting unit; 51. a warm light member.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The embodiment of the application discloses light regulating circuit.
Referring to fig. 1, a light adjusting circuit includes a control module 1, an input module 2, and a brightness adjusting module 4, where the input module 2 is used for inputting a light adjusting signal, the control module 1 is coupled to the input module 2 and is used for receiving the light adjusting signal and outputting a control signal, and the brightness adjusting module 4 is coupled to the control module 1. When the brightness or color temperature of the light needs to be adjusted, the light adjusting signal is input through the input module 2, and then the brightness adjusting module 4 is controlled through the control module 1 to change the brightness of the light.
Referring to fig. 1, in order to facilitate power supply of the control module 1, a power module 3 is coupled to the control module 1, an output terminal of the power module 3 is coupled to the control module 1, an input terminal of the power module 3 is coupled to a start-stop switch 21, the start-stop switch 21 is coupled between the input terminal of the power module 3 and an external power source, the power module 3 may employ an AC/DC power converter, such as a power converter with model ABL2REM24015K, an input voltage AC 100-240V, an output DC24V, and can convert the external power source into a DC power suitable for the control module 1. Open and stop switch 21 and to adopt the relay, the break-make of relay can control power module 3 open or close, when power module 3 did not switch on, control module 1 was out of work, no control signal output, and adjustting of lighteness module 4 also did not work, and the management and the use of the whole light of being convenient for can save the electric energy when not using.
Referring to fig. 1, the start-stop switch 21 is arranged on the input module 2, the input module 2 is further provided with a brightness adjusting switch 22 and a color temperature adjusting switch 23, the brightness adjusting switch 22 and the color temperature adjusting switch 23 are used for inputting light adjusting signals, and the input module 2 can adopt 86-type panel switches and can adapt to the sizes of wall switches in most regional projects and home decoration. The brightness adjusting switch 22, the color temperature adjusting switch 23 and the start-stop switch 21 are uniformly arranged on one input module 2, so that uniform management is facilitated, and the use and light control of an operator are facilitated.
Referring to fig. 1, in order to facilitate communication between the input module 2 and the control module 1, a communication unit 11 is further disposed on the light modulation circuit, a transmitting end of the communication unit 11 is coupled to the input module 2, and a receiving end is coupled to the control module 1. In this embodiment, the communication unit 11 adopts a wireless communication mode, and specifically can adopt a 2.4GHz or 433MHz wireless receiver, and the transmitting end and the receiving end can be separately installed at a far position, so as to reasonably set the position of the input module 2, thereby facilitating the use of a user.
Referring to fig. 1, specifically, the brightness adjusting module 4 includes a driving power source 41 and a light emitting element 42, a color temperature adjusting unit 5 is coupled to the brightness adjusting module 4, the color temperature adjusting unit 5 includes a warm light element 51 for emitting warm light, the light emitting element 42 and the warm light element 51 are coupled to the driving power source 41, the driving power source 41 may adopt a DV24V power source, and it should be understood that the voltage level of the driving power source 41 should be selected according to actual needs and according to different light emitting elements 42 and warm light elements 51.
Referring to fig. 1, in the present embodiment, the light emitting element 42 is composed of 3 LED lamps connected in series, in other embodiments, light emitting devices such as incandescent lamps may also be adopted, and the number of the LED lamps may also be 2, 3, and the like, two ends of the light emitting element 42 are respectively connected in series with a first resistor R1 and a second resistor R2, the other end of the first resistor R1 is connected to the output end of the driving power source 41, and the other end of the second resistor R2 is coupled to the control module 1. The warm light member 51 is composed of 3 warm light lamps connected in series, the color temperature of the warm light lamps is below 3000K, the two ends of the warm light member 51 are respectively connected in series with a third resistor R3 and a fourth resistor R4, the other end of the fourth resistor R4 is connected to the output end of the driving power supply 41, the other end of the third resistor R3 is coupled with the control module 1, and the first resistor R1, the second resistor R2, the third resistor R3 and the fourth resistor R4 play a role in voltage division, so that stable operation of the light emitting member 42 and the warm light member 51 is facilitated.
Referring to fig. 1, the control module 1 includes a PWM signal generator 12 and a control unit 13, the control unit 13 includes a brightness control subunit 131 and a color temperature control subunit 132, and two PWM signal generators 12 are respectively coupled to the brightness control subunit 131 and the color temperature control subunit 132. The PWM signal generator 12 outputs a duty ratio signal after receiving the control signal, the brightness control subunit 131 is coupled to the PWM signal generator 12 and configured to receive the duty ratio signal and control the current passing through the light emitting element 42 to increase or decrease the brightness of the light emitting element 42, and the color temperature control subunit 132 is coupled to the PWM signal generator 12 and configured to receive the duty ratio signal and control the current passing through the light warming element 51 to increase or decrease the brightness of the light warming element 51, so as to implement linear adjustment of the brightness and the color temperature of the light, reduce the flicker of the light emitting element 42, and achieve stability and reliability and good dimming effect.
Referring to fig. 1, in particular, the brightness control subunit 131 includes a MOSFET tube U3, a fifth resistor R5 and a sixth resistor R6, the drain of the MOSFET tube U3 is coupled to the second resistor R2, the gate is coupled to the output terminal of the PWM signal generator 12 through the fifth resistor R5, the source is grounded, and the gate of the MOSFET tube U3 is also grounded through the sixth resistor R6; the color temperature control subunit 132 includes a MOSFET tube U4, a seventh resistor R7, and an eighth resistor R8, the drain of the MOSFET tube U4 is coupled to the third resistor R3, the gate is coupled to the output terminal of the PWM signal generator 12 through the seventh resistor R7, the source is grounded, and the gate of the MOSFET tube U4 is also grounded through the eighth resistor R8. The MOSFET is a voltage control type device, has small conduction voltage drop when being conducted, low power consumption and stable performance, can control the electric field effect of the input loop to control the current of the output loop, and further improves the stability of linear dimming.
The implementation principle of a light regulating circuit of the embodiment of the application is as follows: the ON/OFF button is touched lightly, the start-stop switch 21 is switched ON, the power module 3 starts to supply power, the control module 1 starts to work, and the luminous piece 42 starts to shine. The brightness adjusting switch 22 or the color temperature adjusting switch 23 on the input module 2 is pressed for a short time, a corresponding light adjusting signal is input, the control module 1 receives and then changes an output control signal, so as to adjust a duty ratio signal output by the PWM signal generator 12, the brightness control subunit 131 and the color temperature control subunit 132 are controlled by the duty ratio signal sent by the PWM signal generator 12, and the current of the loop of the light emitting element 42 and the light warming element 51 is controlled to increase or decrease according to the duty ratio signal, so that the brightness of the light emitting element 42 and the light warming element 51 can be increased or decreased accordingly, thereby achieving the purpose of linearly adjusting the brightness and the color temperature, reducing the flicker of the light emitting element 42, and being stable and reliable and having good dimming effect.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. A light conditioning circuit, characterized by: the lighting control system comprises an input module (2), a control module (1) and a brightness adjusting module (4), wherein the input module (2) is used for inputting lighting adjusting signals, the control module (1) is coupled with the input module (2) and is used for receiving the lighting adjusting signals and outputting control signals, the brightness adjusting module (4) comprises a driving power supply (41) and a light-emitting piece (42) coupled with the driving power supply (41), and the brightness adjusting module (4) is coupled with the control module (1);
the control module (1) comprises a PWM signal generator (12) and a control unit (13), wherein the PWM signal generator (12) is used for receiving a control signal and outputting a duty ratio signal, and the control unit (13) is coupled with the PWM signal generator (12) and used for receiving the duty ratio signal and controlling the current passing through the light-emitting piece (42) to increase or decrease so as to increase or decrease the brightness of the light-emitting piece (42).
2. A light conditioning circuit according to claim 1, wherein: a color temperature adjusting unit (5) is coupled to the brightness adjusting module (4), the color temperature adjusting unit (5) comprises a warm light piece (51) used for emitting warm light, the warm light piece (51) is coupled to the driving power supply (41), the color temperature adjusting unit (5) is coupled to a control unit (13), and the control unit (13) is coupled to the PWM signal generator (12) and used for receiving a duty ratio signal and controlling the current passing through the warm light piece (51) to increase or decrease so that the brightness of the warm light piece (51) is increased or decreased.
3. A light conditioning circuit according to claim 2, wherein: the control unit (13) comprises a brightness control subunit (131) and a color temperature control subunit (132), wherein the brightness control subunit (131) and the color temperature control subunit (132) are respectively coupled with the light-emitting piece (42) and the light-warming piece (51);
the brightness control subunit (131) comprises a MOSFET tube U3, a fifth resistor R5 and a sixth resistor R6, the drain of the MOSFET tube U3 is coupled to the light emitting element (42), the gate is coupled to the output terminal of the PWM signal generator (12) through the fifth resistor R5, the source is grounded, and the gate of the MOSFET tube U3 is grounded through the sixth resistor R6.
4. A light conditioning circuit according to claim 1, wherein: the communication device further comprises a communication unit (11), wherein a sending end of the communication unit (11) is coupled to the input module (2), and a receiving end of the communication unit (11) is coupled to the control module (1).
5. A light conditioning circuit according to claim 1, wherein: the power supply control device is characterized in that a power supply module (3) is coupled to the control module (1), the input end of the power supply module (3) is electrically connected with an external power supply, the output end of the power supply module (3) is coupled to the control module (1), and the power supply module (3) is used for supplying power to the control module (1).
6. A light conditioning circuit according to claim 5, wherein: the input module (2) is provided with a start-stop switch (21), and the start-stop switch (21) is coupled between the input end of the power module (3) and an external power supply.
7. A light conditioning circuit according to claim 4, wherein: the input module (2) is provided with a brightness adjusting switch (22) and a color temperature adjusting switch (23), and the brightness adjusting switch (22) and the color temperature adjusting switch (23) are used for inputting light adjusting signals to a transmitting end of the communication unit (11).
8. A light conditioning circuit according to any one of claims 1-7, wherein: the two ends of the light emitting element (42) are respectively coupled with a first resistor R1 and a second resistor R2, the other end of the first resistor R1 is connected to the output end of the driving power supply (41), and the other end of the second resistor R2 is coupled with the control module (1).
CN202120538710.5U 2021-03-12 2021-03-12 Light regulating circuit Active CN214281714U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120538710.5U CN214281714U (en) 2021-03-12 2021-03-12 Light regulating circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120538710.5U CN214281714U (en) 2021-03-12 2021-03-12 Light regulating circuit

Publications (1)

Publication Number Publication Date
CN214281714U true CN214281714U (en) 2021-09-24

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ID=77794025

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120538710.5U Active CN214281714U (en) 2021-03-12 2021-03-12 Light regulating circuit

Country Status (1)

Country Link
CN (1) CN214281714U (en)

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