CN209994597U - Multifunctional dimming circuit and device - Google Patents
Multifunctional dimming circuit and device Download PDFInfo
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- CN209994597U CN209994597U CN201920318998.8U CN201920318998U CN209994597U CN 209994597 U CN209994597 U CN 209994597U CN 201920318998 U CN201920318998 U CN 201920318998U CN 209994597 U CN209994597 U CN 209994597U
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Abstract
The utility model provides a multi-functional dimmer circuit and device, including luminous drive circuit, coupling element, adjustable component and output circuit. The light-emitting driving circuit receives a central control signal transmitted by the central controller and generates a pulse width modulation signal. The coupling element receives the pulse width modulation signal transmitted by the light-emitting driving circuit and the reference voltage signal transmitted by the reference voltage end and generates a coupling signal. The adjustable element includes a variable resistance for receiving an external control signal. The adjustable element generates an adjustable signal according to an external control signal and a reference voltage signal. The output circuit converts the coupling signal or the adjustable signal into a dimming output signal according to the preset priority selection. The utility model provides a multi-functional dimmer circuit and device, coupling element and adjustable component sharing output circuit and according to predetermineeing priority selection and convert coupling signal or one of them of adjustable signal into the output signal that adjusts luminance, can effectively reduce circuit cost, increase the flexibility.
Description
Technical Field
The utility model relates to an electronic circuit field particularly, relates to a multi-functional dimmer circuit and device.
Background
Generally, when an electronic product receives an external control signal, a plurality of independent circuits are required to perform corresponding functions, which greatly increases circuit cost. Therefore, how to reduce the circuit cost is a problem to be overcome.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, the utility model provides a multi-functional dimming circuit and device can effectively solve the problem of stating circuit cost increases.
In order to achieve the above object, the utility model adopts the following technical scheme:
in a first aspect, the utility model provides a multifunctional light modulation circuit, multifunctional light modulation circuit includes:
at least one light-emitting driving circuit, which is electrically connected with the central controller, receives the central control signal transmitted by the central controller, and generates a pulse width modulation signal according to the control signal;
the coupling element is electrically connected with the light-emitting driving circuit and a reference voltage end, receives the pulse width modulation signal transmitted by the light-emitting driving circuit and a reference voltage signal transmitted by the reference voltage end, and generates a coupling signal according to the pulse width modulation signal and the reference voltage signal;
the adjustable element is electrically connected with the reference voltage terminal and comprises at least one variable resistor, wherein the variable resistor is used for receiving an external control signal, and the adjustable element generates an adjustable signal according to the external control signal and the reference voltage signal transmitted by the reference voltage terminal;
and the output circuit is electrically connected with the coupling element and the adjustable element, receives the coupling signal transmitted by the coupling element and the adjustable signal transmitted by the adjustable element, and selectively converts the coupling signal or the adjustable signal into a dimming output signal according to a preset priority.
As an optional implementation manner, the at least one light emitting driving circuit includes a first light emitting driving circuit and a second light emitting driving circuit, the first light emitting driving circuit receives a first central control signal transmitted by a first central controller of the first circuit board, and the first light emitting driving circuit generates a first pulse width modulation signal according to the first central control signal; the second light-emitting driving circuit receives a second central control signal transmitted by a second central controller of a second circuit board, and generates a second pulse width modulation signal according to the second central control signal.
As an optional implementation, the multifunctional dimming circuit further includes:
the hot plug function circuit is electrically connected with the at least one light-emitting drive circuit and comprises a hot plug interface which is used for plugging the at least one function circuit and transmitting an electrical function signal.
As an optional implementation, the output circuit converts the electrical function signal, the coupling signal or the adjustable signal into the dimming output signal according to the preset priority selection.
In an alternative embodiment, the coupling element is a photoelectric coupling element.
In a second aspect, the utility model provides a multifunctional light modulation device, multifunctional light modulation device includes:
at least one light-emitting driving circuit, which is electrically connected with the central controller, receives the central control signal transmitted by the central controller, and generates a pulse width modulation signal according to the control signal;
the coupling element is electrically connected with the light-emitting driving circuit and a reference voltage end, receives the pulse width modulation signal transmitted by the light-emitting driving circuit and a reference voltage signal transmitted by the reference voltage end, and generates a coupling signal according to the pulse width modulation signal and the reference voltage signal;
the adjustable element is electrically connected with the reference voltage terminal and comprises at least one variable resistor, wherein the variable resistor is used for receiving an external control signal, and the adjustable element generates an adjustable signal according to the external control signal and the reference voltage signal transmitted by the reference voltage terminal;
an output circuit electrically connected to the coupling element and the tunable element, the output circuit receiving the coupling signal transmitted by the coupling element and the tunable signal transmitted by the tunable element, wherein the output circuit selectively converts the coupling signal or the tunable signal into a dimming output signal according to a predetermined priority;
and the light emitting elements are electrically connected with the output circuit, and the light emitting rate of each light emitting element is adjusted according to the dimming output signal.
As an optional implementation manner, the at least one light emitting driving circuit includes a first light emitting driving circuit and a second light emitting driving circuit, the first light emitting driving circuit receives a first central control signal transmitted by a first central controller of the first circuit board, and the first light emitting driving circuit generates a first pulse width modulation signal according to the first central control signal; the second light-emitting driving circuit receives a second central control signal transmitted by a second central controller of a second circuit board, and generates a second pulse width modulation signal according to the second central control signal.
As an optional implementation, the multifunctional dimming device further comprises:
the hot plug function circuit is electrically connected with the at least one light-emitting drive circuit and comprises a hot plug interface which is used for plugging the at least one function circuit and transmitting an electrical function signal.
As an optional implementation, the output circuit converts the electrical function signal, the coupling signal or the adjustable signal into the dimming output signal according to the preset priority selection.
In an alternative embodiment, the coupling element is a photoelectric coupling element.
According to the utility model provides a multi-functional dimmer circuit, at least including luminous drive circuit, coupling element, adjustable component and output circuit. The light-emitting driving circuit receives a central control signal transmitted by the central controller and generates a pulse width modulation signal. The coupling element receives the pulse width modulation signal transmitted by the light-emitting driving circuit and the reference voltage signal transmitted by the reference voltage end and generates a coupling signal. The adjustable element includes a variable resistance for receiving an external control signal. The adjustable element generates an adjustable signal according to an external control signal and a reference voltage signal. The output circuit converts the coupling signal or the adjustable signal into a dimming output signal according to the preset priority selection. The utility model provides a multi-functional dimmer circuit, coupling element and adjustable component sharing output circuit and according to predetermineeing priority selection and become the output signal that adjusts luminance with coupling signal or adjustable signal conversion, can effectively reduce the circuit cost to the selection is luminous by one of them control of coupling signal or adjustable signal, increases the flexibility. In addition, the multifunctional dimming circuit also comprises a hot plug function circuit, and the output circuit can select one of the electric function signal, the coupling signal or the adjustable signal to be converted into the dimming output signal according to the preset priority, so that the functionality of the multifunctional dimming circuit is improved.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, and it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope of the present invention.
Fig. 1 is a schematic block diagram of a multifunctional dimming circuit provided in embodiment 1 of the present invention;
fig. 2 is a schematic circuit diagram of a multifunctional light modulation circuit provided in embodiment 2 of the present invention;
fig. 3 is a schematic circuit diagram of a multifunctional light modulation device provided in embodiment 3 of the present invention.
Description of the main element symbols:
100. 200-a multifunctional dimming circuit;
110-a light emission driving circuit;
120-a coupling element;
130-an adjustable element;
140-an output circuit;
211-a first driving circuit;
212-a second light emission driving circuit;
250-hot plug function circuit;
300-a multifunctional light modulation device;
360-a light emitting element;
VREF-the reference voltage terminal.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout.
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The technical solutions in the embodiments of the present invention will be described clearly and completely 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. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1, fig. 1 is a schematic block diagram of a multifunctional dimming circuit provided in embodiment 1 of the present invention. The multifunctional dimming circuit 100 includes at least one light emitting driving circuit 110, a coupling element 120, an adjustable element 130, and an output circuit 140.
Further, the light emitting driving circuit 110 is electrically connected to the central controller 105. The coupling element 120 is electrically connected to the light emitting driving circuit 110 and the reference voltage terminal VREF. The tunable element 130 is electrically connected to the reference voltage terminal VREF. The output circuit 140 is electrically connected to the coupling element 120 and the tunable element 130. For example, the central controller 105 may be a Central Processing Unit (CPU) including a plurality of pins, each for transmitting and receiving signals, e.g., the central controller 105 may be configured to control the multi-function dimming circuit 100 to send signals to control the dimming function (e.g., adjusting the light-emitting rate or color conversion) of the rear-end light-emitting device.
For example, the coupling element 120 may be a photo-coupler, which is generally composed of a light emitter, a light receiver and a signal amplifier. The light emitter may be a light emitting diode that converts electrical energy into light of a specific wavelength, there may be a closed optical channel between the emission source and the receiver, and the light receiver is a light sensor that senses light of a specific wavelength, possibly directly converted into electrical energy.
In one embodiment, the light emitting driving circuit 110 receives a central control signal transmitted by the central controller 105. The light emitting driving circuit 110 generates a pulse width modulation signal according to a central control signal transmitted from the central controller 105. The coupling element 120 receives the pwm signal transmitted by the light-emitting driving circuit 110 and the reference voltage signal transmitted by the reference voltage terminal VREF. Then, the coupling element 120 generates a coupling signal according to the pwm signal transmitted from the light-emitting driving circuit 110 and the reference voltage signal transmitted from the reference voltage terminal VREF. For example, the light emitting driving circuit 110 may be a DALI protocol LED dimming module or a DALI-PWM module.
For example, pulse width modulation is an analog control method, which modulates the base of a BJT transistor or the gate of a MOS transistor according to the change of a corresponding load to change the on-time of the BJT transistor or the MOS transistor, and then adjusts a switch formed by the BJT transistor or the MOS transistor as a regulated power supply output. In other words, the coupling element 120 generates the coupling signal according to the duty cycle of the pwm signal and the reference voltage signal to control the dimming function of the rear-end light-emitting element.
In one embodiment, the tunable element 130 includes at least one variable resistor. For example, variable resistors are commonly used in control circuits that require frequent adjustment for adjusting voltage, adjusting current, or adjusting resistance, among other functions. For example, when the user adjusts the knob of the variable resistor, the variable resistor is used to receive the external control signal, wherein the adjustable element 130 generates the adjustable signal according to the external control signal and the reference voltage signal transmitted by the reference voltage terminal VREF.
In one embodiment, the output circuit 140 receives the coupling signal transmitted by the coupling element 120 and the tunable signal transmitted by the tunable element 130. The output circuit 140 converts the coupling signal or the adjustable signal into the dimming output signal according to the preset priority. In other words, the output circuit 140 can convert the coupling signal into the dimming output signal according to the preset priority, and the output circuit 140 can also convert the adjustable signal into the dimming output signal according to the preset priority. In another embodiment, the predetermined priority of the coupled signal may be greater than the predetermined priority of the tunable signal. In yet another embodiment, the predetermined priority of the coupled signal may be less than the predetermined priority of the tunable signal, which is not limited by the present invention.
Example 2
Referring to fig. 2, fig. 2 is a schematic circuit diagram of a multifunctional dimming circuit according to embodiment 2 of the present invention. The multi-function dimming circuit 200 comprises at least one light emitting driving circuit 110, a coupling element 120, an adjustable element 130, an output circuit 140, and a hot swap function circuit 250.
In one embodiment, the at least one light emitting driving circuit 110 includes a first light emitting driving circuit 211 and a second light emitting driving circuit 212. For example, the multifunctional dimming circuit 200 is disposed in one of the sub-circuits inside a multifunctional dimming system (not shown), and the multifunctional dimming system includes a first circuit board and a second circuit board, where the first circuit board includes a first central controller, and the second circuit board includes a second central controller.
In one embodiment, the first driving circuit 211 receives a first central control signal transmitted by a first central controller of the first circuit board, the first driving circuit 211 generates a first pwm signal according to the first central control signal, and the coupling element 120 generates a coupling signal according to the first pwm signal and the voltage signal. The second light-emitting driving circuit 212 receives a second central control signal transmitted by a second central controller of the second circuit board, the second light-emitting driving circuit 212 generates a second pulse width modulation signal according to the second central control signal, and the coupling element 120 generates a coupling signal according to the second pulse width modulation signal and the equal voltage signal.
In an embodiment, the hot swap function circuit 250 is electrically connected to the first light emitting driving circuit 211 and the second light emitting driving circuit 212 of the light emitting driving circuit 110. The hot plug function circuit 250 includes a hot plug interface, which may be a PCI-e (peripheral component interconnect) interface, for plugging at least one function circuit and transmitting an electrical function signal. For example, the hot plug interface can plug a functional circuit under the condition of no power failure, and the functional circuit can be an infrared sensor or a communication circuit. For example, the output circuit 140 may selectively convert one of the electrical function signal, the coupling signal or the tunable signal into the dimming output signal according to a predetermined priority, so as to increase the functionality of the multifunctional dimming circuit 200.
Example 3
Referring to fig. 3, fig. 3 is a schematic circuit diagram of a multifunctional light modulating device according to embodiment 3 of the present invention. The multifunctional dimming device 300 includes:
at least one light-emitting driving circuit 110 electrically connected to the central controller 105, wherein the light-emitting driving circuit 110 receives a central control signal transmitted by the central controller 105, and the light-emitting driving circuit 110 generates a pulse width modulation signal according to the control signal;
a coupling element 120 electrically connected to the light emitting driving circuit 110 and a reference voltage terminal VREF, wherein the coupling element 120 receives the generated pwm signal transmitted by the light emitting driving circuit 110 and a reference voltage signal transmitted by the reference voltage terminal VREF, and the coupling element 120 generates a coupling signal according to the pwm signal and the reference voltage signal;
an adjustable element 130 electrically connected to a reference voltage terminal VREF, wherein the adjustable element 130 includes at least one variable resistor, and the variable resistor is configured to receive an external control signal, and the adjustable element 130 generates an adjustable signal according to the external control signal and the reference voltage signal received from the reference voltage terminal VREF;
an output circuit 140 electrically connected to the coupling element 120 and the tunable element 130, wherein the output circuit 140 receives the coupling signal transmitted by the coupling element 120 and the tunable signal transmitted by the tunable element 130, and the output circuit 140 selectively converts the coupling signal or the tunable signal into a dimming output signal according to a predetermined priority;
at least one light emitting device 360 electrically connected to the output circuit 140, wherein each light emitting device 360 adjusts the light output rate according to the dimming output signal.
Preferably, the at least one light emitting driving circuit 110 includes a first light emitting driving circuit 211 and a second light emitting driving circuit 212, the first light emitting driving circuit 211 receives a first central control signal transmitted by a first central controller of the first circuit board, and the first light emitting driving circuit 211 generates a first pulse width modulation signal according to the first control signal; the second light-emitting driving circuit 212 receives a second central control signal transmitted by a second central controller of the second circuit board, and the second light-emitting driving circuit 212 generates a second pulse width modulation signal according to the second central control signal.
Preferably, the multifunctional dimming device 300 further comprises:
the hot-plug function circuit 250 is electrically connected to the at least one light-emitting driver circuit 110, and the hot-plug function circuit 250 includes a hot-plug interface for plugging at least one function circuit and transmitting an electrical function signal.
Preferably, the output circuit 140 converts the electrical function signal, the coupling signal or the adjustable signal into the dimming output signal according to the predetermined priority.
Preferably, the coupling element 120 is a photocoupler.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the above description, in combination with the drawings in the embodiments of the present invention, clearly and completely describes the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the above detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Claims (10)
1. A multi-function dimming circuit, comprising:
the light-emitting driving circuit is electrically connected with the central controller, receives a central control signal transmitted by the central controller, and generates a pulse width modulation signal according to the control signal;
the coupling element is electrically connected with the light-emitting driving circuit and a reference voltage end, receives the pulse width modulation signal transmitted by the light-emitting driving circuit and a reference voltage signal transmitted by the reference voltage end, and generates a coupling signal according to the pulse width modulation signal and the reference voltage signal;
the adjustable element is electrically connected with a reference voltage terminal and comprises at least one variable resistor, wherein the variable resistor is used for receiving an external control signal, and the adjustable element generates an adjustable signal according to the external control signal and the reference voltage signal transmitted by the reference voltage terminal;
and the output circuit is electrically connected with the coupling element and the adjustable element, receives the coupling signal transmitted by the coupling element and the adjustable signal transmitted by the adjustable element, and selectively converts the coupling signal or the adjustable signal into a dimming output signal according to a preset priority.
2. The multi-function light modulation circuit of claim 1, wherein the at least one light emitting driving circuit comprises a first light emitting driving circuit and a second light emitting driving circuit, the first light emitting driving circuit receives a first central control signal transmitted by a first central controller of the first circuit board, and the first light emitting driving circuit generates a first pulse width modulation signal according to the first central control signal; the second light-emitting driving circuit receives a second central control signal transmitted by a second central controller of a second circuit board, and generates a second pulse width modulation signal according to the second central control signal.
3. The multi-function dimming circuit of claim 1, further comprising:
the hot plug function circuit is electrically connected with the at least one light-emitting drive circuit and comprises a hot plug interface which is used for plugging at least one function circuit and transmitting an electrical function signal.
4. The multi-function dimming circuit of claim 3, wherein the output circuit converts the electrical function signal, the coupling signal or the adjustable signal into the dimming output signal according to the predetermined priority selection.
5. The multi-function dimming circuit of claim 1, wherein the coupling element is a photo-coupler.
6. A multi-function light modulating device, comprising:
the light-emitting driving circuit is electrically connected with the central controller, receives a central control signal transmitted by the central controller, and generates a pulse width modulation signal according to the control signal;
the coupling element is electrically connected with the light-emitting driving circuit and a reference voltage end, receives the pulse width modulation signal transmitted by the light-emitting driving circuit and a reference voltage signal transmitted by the reference voltage end, and generates a coupling signal according to the pulse width modulation signal and the reference voltage signal;
the adjustable element is electrically connected with the reference voltage terminal and comprises at least one variable resistor, wherein the variable resistor is used for receiving an external control signal, and the adjustable element generates an adjustable signal according to the external control signal and the reference voltage signal transmitted by the reference voltage terminal;
an output circuit electrically connected to the coupling element and the tunable element, the output circuit receiving the coupling signal transmitted by the coupling element and the tunable signal transmitted by the tunable element, wherein the output circuit selectively converts the coupling signal or the tunable signal into a dimming output signal according to a predetermined priority;
and the light emitting elements are electrically connected with the output circuit, and the light emitting rate of each light emitting element is adjusted according to the dimming output signal.
7. The multi-function light modulation device according to claim 6, wherein the at least one light emitting driving circuit comprises a first light emitting driving circuit and a second light emitting driving circuit, the first light emitting driving circuit receives a first central control signal transmitted from a first central controller of the first circuit board, and the first light emitting driving circuit generates a first PWM signal according to the first central control signal; the second light-emitting driving circuit receives a second central control signal transmitted by a second central controller of a second circuit board, and generates a second pulse width modulation signal according to the second central control signal.
8. The multi-function dimming device of claim 6, further comprising:
the hot plug function circuit is electrically connected with the at least one light-emitting drive circuit and comprises a hot plug interface which is used for plugging the at least one function circuit and transmitting an electrical function signal.
9. The multi-function dimming device of claim 8, wherein the output circuit converts the electrical function signal, the coupling signal or the adjustable signal into the dimming output signal according to the predetermined priority selection.
10. The multi-function dimming device of claim 6, wherein the coupling element is a photo-coupler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920318998.8U CN209994597U (en) | 2019-03-13 | 2019-03-13 | Multifunctional dimming circuit and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920318998.8U CN209994597U (en) | 2019-03-13 | 2019-03-13 | Multifunctional dimming circuit and device |
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| CN209994597U true CN209994597U (en) | 2020-01-24 |
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| CN201920318998.8U Active CN209994597U (en) | 2019-03-13 | 2019-03-13 | Multifunctional dimming circuit and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109743827A (en) * | 2019-03-13 | 2019-05-10 | 深圳莱福德科技股份有限公司 | Multifunctional light-regulating circuit |
-
2019
- 2019-03-13 CN CN201920318998.8U patent/CN209994597U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109743827A (en) * | 2019-03-13 | 2019-05-10 | 深圳莱福德科技股份有限公司 | Multifunctional light-regulating circuit |
| CN109743827B (en) * | 2019-03-13 | 2023-08-01 | 深圳莱福德科技股份有限公司 | Multifunctional light modulation circuit |
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