TWM644337U - Lamps and dimming control system - Google Patents

Abstract

This creation provides a dimming control system for driving at least one lamp to emit light. The dimming control system is provided with a conversion circuit, which is connected to a power and a signal controller. The lamp is provided with an power supply circuit and an identification circuit. The conversion circuit converts the power into use electricity and outputs it to the lamp, and the conversion circuit converts the control signal generated by the signal controller to output the dimming control signal to the lamp. When the signal controller recognizes the configuration of the power supply circuit of the lamp through the identification circuit, the power supply circuit of the lamp outputs a dimming drive signal according to the use electricity and the dimming control signal, so as to drive the lamp for dimming control.

Description

Lamps and dimming control systems

This creation relates to a kind of lighting regulation of power line carrier communication, especially a kind of lamp and a dimming control system.

In the conventional digital multiplex interface (Digital MultipleX, DMX) light control method, the line connection method of the light control is to connect a DMX module corresponding to the DMX host on each lamp, so that the control signal of the DMX host can control each DMX The modules, as well as the DMX modules for each fixture also need to be connected to the power supply. Therefore, in the case that the DMX module of each lamp needs to be connected to the signal line and the power line, the connection of the line is quite complicated and the construction is inconvenient, and the dimming control of each lamp can only be controlled through the DMX host. .

That is to say, in a similar situation, besides the light control for turning on or off a large number of light fixtures and area light fixtures, the control for light fixtures also includes dimming light. Among them, the control of turning on or off of multiple lamps is often only controlled by connecting specific lines, resulting in expensive construction costs and complicated wiring.

And in a common dimming method, the unit signal of the power signal is directly phase-cut, so that the light-emitting diode lighting device performs dimming according to the dimming signal after phase-cutting. However, this type of phase-cut dimming signal, when the brightness is low, the light-emitting diode lighting device is very prone to flicker, and because the power signal after phase-cut, its waveform is not a complete sine wave, its energy consumption rate is also very low.

In view of the problems raised by the previous technology, this creation provides a lamp and a dimming control system to solve the problems of complicated wiring connection of lamps and inconvenient control of lamps for dimming.

According to an embodiment of the present invention, a lamp is proposed, including: a power line signal control circuit receiving a dimming control signal provided by a power transmission line; a power supply circuit electrically connected to the power line signal control circuit and receiving the power line The dimming control signal provided by the signal control circuit; a light emitting circuit electrically connected to the power supply circuit; and a power conversion circuit electrically connected to the power line signal control circuit and the power supply circuit, and the power conversion circuit receives the power A power supply provided by the transmission line supplies power to the power line signal control circuit and the power supply circuit; wherein the power line signal control circuit controls the power supply circuit to output a lamp dimming signal to the lighting circuit according to the dimming control signal.

In one embodiment, the power line signal control circuit is provided with an identification circuit and a signal receiving and transmitting circuit, and the signal receiving and transmitting circuit receives and transmits the dimming control signal to the power supply circuit.

In one embodiment, the power supply circuit is provided with a dimming circuit and a constant current circuit, the dimming circuit is electrically connected to the constant current circuit, the power line signal control circuit is electrically connected to the dimming circuit, and the dimming circuit receives The dimming control signal generates a dimming driving signal and sends it to the constant current circuit, and the constant current circuit generates the lamp dimming signal to the light emitting circuit after receiving the dimming driving signal.

In one embodiment, it further includes a sensing circuit electrically connected to the power line signal control circuit and the light emitting circuit, the sensing circuit is used to monitor the operation status of the light emitting circuit and send a sensing signal to the power line signal control The circuit transmits the sensing signal through the power transmission line through the signal receiving and transmitting circuit.

In one embodiment, the power conversion circuit is electrically connected to the dimming circuit and the constant current circuit, the power conversion circuit provides power for the dimming circuit and the constant current circuit to work, and the light emitting circuit is electrically connected to the constant current circuit circuit.

In one embodiment, the control interface of the dimming circuit is a digital multiplex interface (Digital MultipleX, DMX), and the light emitting circuit includes a single or multiple light emitting diode light sources.

According to another embodiment of the present invention, a dimming control system with the lamp is proposed, including: a conversion circuit electrically connected to the lamp through a power transmission line, the conversion circuit is electrically connected to a power supply; and a signal The controller is electrically connected to the conversion circuit; wherein, after receiving the power, the conversion circuit converts the power into a power supply and outputs it to the lamp through the power transmission line, and the conversion circuit receives a signal generated by the controller After controlling the signal, the control signal is converted into a signal, and a dimming control signal is output to the lamp through the power transmission line.

In one embodiment, the power supply and the dimming control signal transmitted between the conversion circuit and the lamp through the power transmission line are transmitted through power line carrier communication, and the connection of the power line carrier communication is through the conversion circuit through a A group of the power transmission lines are electrically connected in parallel to a plurality of the lamps. When the signal controller recognizes the identification circuit of the lamp through the signal transmission of the conversion circuit and the signal controller passes the identification circuit of the lamp When the configuration of the power supply circuit of the lamp is identified, the lamp outputs the dimming driving signal according to the received power supply and the dimming control signal.

In one embodiment, the signal controller is a digital multiplex interface signal controller. When the lamp receives the power supply and the dimming control signal, the power conversion circuit performs power conversion on the power supply and receives the signal The transmission circuit receives and transmits the dimming control signal, and generates the dimming driving signal through the dimming circuit, and the constant current circuit generates the dimming signal of the lamp after receiving the dimming driving signal to control the lamp for dimming Light.

In one embodiment, the dimming control system further includes a control panel, the control panel is electrically connected to the conversion circuit and the plurality of lamps through the power transmission line, and the control panel is provided with a bluetooth circuit and a lamp identification circuit When the lamp identification circuit of the control panel recognizes the configuration of the power supply circuit of the lamp through the identification circuit of the lamp, the control panel communicates with an electronic device through the bluetooth circuit, and the electronic device displays and communicates with the Information about the fixture connected to the control panel.

In one embodiment, the control panel is provided with a plurality of buttons, and the lamp identification circuit of the control panel identifies the configuration of the power supply circuit of the one or more lamps through the identification circuit of the one or more lamps When the operation of the key is used to control the opening or closing of the one or more lamps, when the electronic device is connected through the bluetooth circuit of the control panel, the electronic device reads the status of the lamp through the control panel. The information or the electronic device modifies the address setting of the identification circuit of the lamp through the control panel, the dimming driving signal is a pulse width modulation signal, and the power supply is an AC power supply.

The possible technical effect of the invention lies in that it can effectively control and control each lamp for dimming, and solve the problem of complex wiring of multiple lamps. That is to say, when using power line carrier communication for dimming control, there is no need to configure additional signal lines, not only can identify the independent control address of each lamp and perform dimming of the lamps, but also can accurately adjust the dimming to eliminate the stroboscopic flicker of the lamps. question. Furthermore, through the interface of the bluetooth circuit, electronic devices such as smart portable devices can remotely change the control address of each lamp, and remotely monitor the working status of each lamp. Therefore, this creation can achieve precise dimming control, save wiring materials and reduce wiring complexity, and improve the energy efficiency of lamps and lanterns to save electricity.

In order to further understand the technology and functions adopted by this creation to achieve the intended purpose, please refer to the following detailed descriptions and diagrams of this creation. I believe that the purpose, characteristics and characteristics of this creation should be able to gain an in-depth and specific understanding. , however, the accompanying drawings are provided for reference and illustration only, and are not intended to limit this creation.

The following is an illustration of the implementation of the "lamp and dimming control system" disclosed in this creation through specific specific embodiments. Those skilled in the art can understand the advantages and effects of this creation from the content disclosed in this specification. This creation can be implemented or applied through other different specific embodiments, and various modifications and changes can be made to the details in this specification based on different viewpoints and applications without departing from the idea of this creation. In addition, the drawings of this creation are only for simple illustration, not according to the actual size of the depiction, prior statement. The following embodiments will further describe the relevant technical content of this creation in detail, but the disclosed content is not intended to limit the protection scope of this creation.

In order to more clearly illustrate the technical solutions in the embodiments of this creation, the following will briefly introduce the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the creation. For those skilled in the art with ordinary knowledge and ordinary skills, other drawings can also be obtained based on these drawings without undue effort.

The invention discloses a lamp and a dimming control system, for example, it is used for controlling the dimming of lights on a stage, or used in places such as movie theaters, concerts, exhibitions and presentations that require lighting regulation. This creation uses the method of power line carrier communication to carry out two-way communication with the lamps, and there is no need to configure additional signal lines. As long as there are lines or any power lines, the power and control signals can be transmitted to the lamps, and the lamps can be identified and adjusted. Light.

In addition, by means of power line carrier communication, it is also possible to control multiple lamps or circuits with a single set of power transmission lines, and independently dim a single lamp. As long as the AC power supply such as the mains power supply, the wiring method of the power line carrier communication, and the signal transmission method are used, not only the wiring of each lamp can be simplified, but also the dimming of the lamp can be accurately adjusted after the lamp is identified.

Please refer to FIG. 1 . FIG. 1 presents a block diagram of a dimming control system according to an embodiment of the present invention. The invention provides a dimming control system 1 , which includes but not limited to: a conversion circuit 11 , a signal controller 12 and more than one lamp 13 . In the dimming control system 1 , the lamp 13 may be a lamp 13 with AC input and direct current control dimming.

In FIG. 1, the conversion circuit 11 can be a related circuit of a signal converter, such as a DMX interface converted to a power line carrier signal interface or a bus interface (RS232, RS485, etc.) converted to a power line carrier signal interface. In addition, the signal controller 12 can be the control host of DMX, and this creation is not limited to the foregoing.

The configuration of the dimming control system 1 is used to drive the lamps 13 to emit light and adjust the light. Therefore, the connection method of the dimming control system 1 is that the conversion circuit 11 is connected to a power supply 10, a signal controller 12 and a plurality of lamps 13. The conversion circuit 11 will The power supply 10 is converted into a power supply and output to one or more lamps 13, and the conversion circuit 11 can also convert a control signal generated by the signal controller 12 to output a dimming control signal to one or more lamps 13 superior.

In one embodiment, the power supply 10 can be a power supply with mains or alternating current output. In addition, the conversion circuit 11 transmits the power supply and the dimming control signal to each lamp 13 through a set of two-line power transmission lines, and further transmits the power supply and the dimming control signal through the power line carrier communication technology. . The line connection mode and signal transmission principle of the power line carrier communication are well known to those skilled in the art, and will not be repeated here.

Furthermore, referring to FIG. 2 , FIG. 2 presents a block diagram of the internal circuit of the lamp shown in an embodiment of the invention. Therefore, the conversion circuit 11 is electrically connected to the lamps 13 through wires or power transmission lines. Each lamp 13 is provided with a power line signal control circuit 130 and a power supply circuit 131 to identify and dim the lamps 13 .

In one embodiment, the power line signal control circuit 130 receives the dimming control signal provided by the power transmission line. The power supply circuit 131 is electrically connected to the power line signal control circuit 130 and receives the dimming control signal provided by the power line signal control circuit 130 . The lamp 13 further includes a light emitting circuit 137 electrically connected to the power supply circuit 131 . In addition, the power used by the lamp 13 is provided with a power conversion circuit 134, which is electrically connected to the power line signal control circuit 130 and the power supply circuit 131. The power conversion circuit 134 receives the power provided by the power transmission line and supplies power to the power line signal control circuit 130 and the power supply circuit. 131. Accordingly, the power line signal control circuit 130 of the lamp 13 controls the power supply circuit 131 to output the lamp dimming signal to the light emitting circuit 137 according to the dimming control signal.

In one embodiment, the power line signal control circuit 130 is provided with an identification circuit 132 and a signal receiving and transmitting circuit 133 , the signal receiving and transmitting circuit 133 receives and transmits the dimming control signal to the power supply circuit 131 .

In one embodiment, the power supply circuit 131 is provided with a dimming circuit 135 and a constant current circuit 136, the dimming circuit 135 is electrically connected to the constant current circuit 136, the power line signal control circuit 130 is electrically connected to the dimming circuit 135, and the dimming circuit 135 receives the dimming control signal to generate a dimming driving signal and sends it to the given current circuit 136 , and the constant current circuit 136 generates a lamp dimming signal to the light emitting circuit 137 after receiving the dimming driving signal.

In one embodiment, the lamp 13 further includes a sensing circuit 138, electrically connected to the power line signal control circuit 130 and the light emitting circuit 137, the sensing circuit 138 is used to monitor the operation status of the light emitting circuit 137 and send a sensing signal to the power line The signal control circuit 130 transmits the sensing signal to the converting circuit 11 through the power transmission line through the signal receiving and transmitting circuit 133 .

In one embodiment, when the signal controller 12 identifies the identification circuit 132 of the lamp 13 through the signal transmission of the conversion circuit 11, and the signal controller 12 identifies the output circuit 131 of the lamp 13 through the identification circuit 132 of the lamp 13 During configuration, the lamps 13 identified by the signal controller 12 output dimming driving signals according to the received power supply and dimming control signals, so as to drive the identified lamps 13 to perform dimming control. According to the dimming effect required by the lamp 13, the lamp 13 can be set as a single-color or multi-color light-emitting diode lamp, and the invention is not limited to the foregoing.

In one embodiment, the lamp 13 includes a power line signal control circuit 130 electrically connected to the power supply circuit 131 , and the power line signal control circuit 130 receives the dimming control signal and controls and transmits it by a power line carrier. And the lamp 13 further includes a light emitting circuit 137 electrically connected to the power supply circuit 131 to receive the dimming signal of the lamp to control the dimming of the light emitting circuit 137 .

In one embodiment, the power conversion circuit 134 is electrically connected to the dimming circuit 135 and the constant current circuit 136, so that the power conversion circuit 134 provides power for the dimming circuit 135 and the constant current circuit 136 to work, and the light emitting circuit 137 is electrically connected. Constant current circuit 136. The light emitting circuit 137 may include one or more light emitting diode (light-emitting diode, LED) light sources.

In one embodiment, the sensing circuit 138 can be further electrically connected to each circuit in the power supply circuit 131 and the light emitting circuit 137 to monitor the operation status of each circuit of the lamp 13 .

Please continue to cooperate with FIG. 3 . FIG. 3 presents a schematic diagram of circuit configuration of a dimming control system shown in an embodiment of the present invention. In FIG. 3 , the connection of the power line carrier communication is to electrically connect a plurality of lamps 13 sequentially and in parallel through the conversion circuit 11 through a set of power transmission lines 100 . That is, the power transmission line 100 is used to transmit the power supply and the dimming control signal to the lamp 13 by means of power line carrier transmission, which is further described in the present invention as follows.

In one embodiment, the conversion circuit 11 receives the AC power signal VAC from the power source 10 , and the signal controller 12 sends the control signal Xs to the conversion circuit 11 . It is worth mentioning that this creation does not need to configure signal lines for dimming, that is, the power transmission line 100 itself is both a power line and a signal line, and a single set of lines can control multiple independent dimming circuits.

In signal transmission, the conversion circuit 11 converts the AC power signal VAC and the control signal Xs before transmission, that is, the power supply and the dimming control signal between the conversion circuit 11 and the lamp 13 are transmitted through the power line carrier communication, and the power supply The power signal and the dimming control signal can be transmitted simultaneously or separately through the power transmission line 100 using the power line carrier communication technology, and the present invention is not limited to the foregoing.

Therefore, continue to refer to FIG. 4 . FIG. 4 presents a block diagram of an internal circuit for processing power supply and dimming control signals of a lamp shown in an embodiment of the present invention. 3 and 4, the conversion circuit 11 converts the AC power signal VAC of the power supply 10 to form a power supply VS, and the power supply VS is then provided to the power conversion circuit 134 through the power transmission line 100, so the power conversion circuit 134 can provide a power line signal control circuit. 130 , the power supply for the dimming circuit 135 and the constant current circuit 136 to work.

1, the signal controller 12 can also send the control signal Xs to the conversion circuit 11, and the conversion circuit 11 transmits the dimming control signal to the power line signal control circuit 130 of the lamp 13 through the power transmission line 100 in the form of power line carrier.

In one embodiment, when the signal controller 12 recognizes the configuration of the lamp 13 and the corresponding power supply circuit 131 through the identification circuit 132 of the lamp 13, the lamp 13 can output a dimming driving signal to control the lamp according to the received dimming control signal. 13 dimming.

In one embodiment, the signal controller 12 is a DMX host, so the control interface of the dimming circuit 135 can be a DMX interface. According to this, as long as the lamp 13 receives the power supply VS, the power conversion circuit 134 converts the power supply VS and the signal receiving and transmitting circuit 133 receives and transmits the dimming control signal, and transmits the dimming control signal through the dimming circuit 135 It is adjusted to the dimming driving signal, and after receiving the dimming driving signal, the constant current circuit 136 generates a lamp dimming signal to control the lamp 13 to perform dimming.

In one embodiment, the identification circuit 132 of the lamp 13 may include an address chip or cooperate with a dip switch circuit to manually set the address. Moreover, the signal controller 12 can obtain the configuration content of the power supply circuit 131 corresponding to the lamp 13 through a look-up table through the address data in the address chip, and the invention is not limited to the foregoing.

In one embodiment, when the conversion circuit 11 converts the AC power signal VAC provided by the power supply 10 into the power supply VS, it is converted into AC 220V power, and the present invention is not limited to the foregoing.

In addition to the above-mentioned method of identifying the lamp 13 through the identification circuit 132 to control dimming, the present invention can also perform high-resolution precise dimming. Please continue to refer to Figure 4 and cooperate with Figure 3. In Fig. 3, the conversion circuit 11 converts the AC power signal VAC (or AC) and the control signal Xs to output the power supply VS and the dimming control signal to the lamps 13, that is, to perform light dimming on one or more lamps 13. Light.

In one embodiment, when the dimming circuit 135 is a control interface of a DMX interface, the dimming control signal can be a pulse width modulated signal or a DC signal to become a dimming driving signal. Accordingly, after receiving the dimming driving signal through the constant current circuit 136, the lamp dimming signal is outputted as a stable DC voltage and current to the lamp 13, which can eliminate the flickering problem of the lamp 13 when dimming the lamp 13.

In one embodiment, the dimming driving signal generated by the dimming circuit 135 is determined by the dimming gray level of the digital multiplex interface DMX. For example, it is based on each level of logic levels, such as 128, 256, and 512 or more dimming gray levels, which can also be called dimming resolution.

In one embodiment, when the dimming circuit 135 is the control interface of the digital multiplexing interface DMX, each control channel generates a corresponding instruction frame, and the control instruction of the instruction frame includes the control data of the start bit, the logic level, and The end bit constitutes a square wave or a pulse wave for controlling the dimming of the lamp 13, so that the brightness of the lamp 13 can be precisely adjusted according to the command frame of each control channel, and the invention is not limited to the foregoing.

In one embodiment, in this invention, when the dimming resolution of the dimming circuit 135 is, for example, 256 steps or higher, it can form at least hundreds of brightness level dimming, which can make the dimming scale Accurate, and will not flicker even if the dimming brightness is low, so that each dimming scale can correctly reflect the brightness of the lamp 13 . Furthermore, in addition to reflecting the brightness of the lamps 13, the identification circuit 132 of each lamp 13 provides an independent control address, and the control loop can be freely configured. Moreover, for example, in the stage application, each set of power transmission lines 100 can not exceed a specific number of DMX loops, and multiple lamps 13 can be configured to have the same set of DMX loops, and the invention is not limited to the foregoing.

In one embodiment, the power line signal control circuit 130 includes a filter or filter circuit (composed of an inductor and a capacitor) to filter the power supply and dimming control signal transmitted by the switching circuit 11, and can also communicate with the identification circuit 132 and the signal The receiving and transmitting circuit 133 is circuit integrated. The power conversion circuit 134 and the conversion circuit 11 can also include an isolation circuit to prevent signal electromagnetic interference (Electromagnetic Interference, EMI).

In one embodiment, the power conversion circuit 134 is a one-to-many power supply circuit, especially an AC-to-DC power supply circuit, which generates multiple DC power supplies to supply the working voltages of the power line signal control circuit 130 and the power supply circuit 131 respectively.

Please continue to refer to FIG. 4 to FIG. 6 together with FIG. 1 . FIG. 5 presents a schematic diagram of a dimming control system shown in an embodiment of the present invention for use with a control panel and an electronic device. FIG. 6 shows a block diagram of the internal circuit of the control panel shown in an embodiment of the present invention. In FIG. 1 and FIG. 5 , the dimming control system 1 of the present invention also includes a control panel 14 , and the control panel 14 is connected in parallel through the power transmission line 100 to electrically connect the conversion circuit 11 and the plurality of lamps 13 respectively.

In one embodiment, FIG. 5 and FIG. 6 show that the control panel 14 is provided with a lamp identification circuit 142 and a plurality of buttons 140. With reference to FIG. When 132 recognizes the configuration of the power supply circuit 131 of one or more lamps 13 , the one or more lamps 13 can be turned on or off by operating the key 140 . Each button 140 on the control panel 14 can be set to allow each lamp 13 to be controlled in a single zone, multiple zones or all zones, and multiple lamps 13 in each zone can be provided with an independent control panel 14 to facilitate user manipulation. And this creation is not limited to the foregoing.

4 and 6, the control panel 14 is also provided with a bluetooth circuit 141. When the lamp identification circuit 142 of the control panel 14 recognizes the configuration of the power supply circuit 131 of the lamp 13 through the identification circuit 132 of the lamp 13, the control panel 14 communicates with an electronic device 200 via the bluetooth circuit 141 , allowing the electronic device 200 to display the information of the lamps 13 connected to the control panel 14 . According to this, the electronic device 200 can receive and know the internal information of the working status of each lamp 13, and the lamp 13 can be monitored through the sensing circuit 138 provided on the lamp 13, such as the LED operating voltage, current and temperature in use. In one embodiment, when the electronic device 200 is a smart device such as a mobile phone and a tablet computer with a communication function, it is convenient for the operator to monitor the lamps 13 .

In one embodiment, FIG. 4 shows that by setting the sensing circuit 138 inside the lamp 13, at least sensors for voltage, current, and temperature and corresponding circuits can be included to capture the operation data of each circuit of the lamp 13, and based on this, The power line signal control circuit 130 realizes the two-way communication of the power line carrier signal 139, so that the electronic device 200 can know the working status or internal information of each lamp 13, and monitor it through a mobile application.

In addition, after the electronic device 200 is connected through the Bluetooth circuit 141 of the control panel 14, and the electronic device 200 reads the operation information of the lamp 13 and performs dimming through the control panel 14, the electronic device 200 can also be connected through the control panel. 14 Modify the identified lamps 13 and set the control address of the identification circuit 132 of the lamps 13 to control a large number of lamps 13, for example modify the number corresponding to the area to be displayed and the circuit. Moreover, in addition to modifying the control identification address of the lamp 13 remotely with the electronic device 200, the address chip of the lamp 13 can also be manually set through the set dip switch circuit when the lamp 13 is installed on the construction site, and this Creation is not limited to the foregoing.

[Possible technical effects of this creation]

The possible technical effect of the invention lies in the simple wiring connection of the lamps and the convenience of controlling the lamps for dimming.

Moreover, the lamp has a dimming function for adjusting the light point, and can be dimmed and precisely dimmed at any time, not the dimming mode of incandescent lamps (commonly known as tungsten lamps). Based on this, the invention saves electricity, generates less heat and saves electricity consumption of lamps, and the power consumption of lamps is far less than that of traditional tungsten filament bulbs.

Abandon the phase dimming mode, full-wave AC power supply, let the power supply be AC power, and convert it to DC through the lamp to power the lamp, with almost no loss of energy efficiency.

Therefore, this creation controls the dimming of lamps through power line carrier communication, and the power transmission line or AC power line is also used as a signal line, without additional signal lines, and has two-way communication, remote and central monitoring functions. Therefore, this creation can not only identify the independent address of each lamp and perform dimming of the lamps, but also precisely adjust the dimming, eliminating the problem of flickering when dimming the lamps. Through the interface of the Bluetooth circuit, electronic devices such as smart portable devices can remotely change the address setting of each lamp, and remotely monitor the working status of each lamp. Therefore, this creation is convenient for dimming, precise dimming control, saves wiring materials and reduces wiring complexity, and improves the energy efficiency of lamps and lanterns to achieve the effect of saving electricity.

Finally, it should be noted that in the foregoing description, although the concept of the present invention has been specifically shown and described in a number of exemplary embodiments, those with ordinary knowledge in the field of this technology will understand that, Various changes in form and details may be made without departing from the conceptual scope of the inventive technology defined by the scope of claims below.

1: Dimming control system 10: Power 11: Conversion circuit 12: Signal controller 13: lamps 130: Power line signal control circuit 131: Power supply circuit 132: identification circuit 133: Signal receiving and transmitting circuit 134: Power conversion circuit 135: Dimming circuit 136: Constant current circuit 137:Light-emitting circuit 138: Sensing circuit 139: Power line carrier signal 14: Control panel 140: button 141: Bluetooth circuit 142: Lamp identification circuit 100: Power transmission line 200: electronic device VS: power supply Xs: control signal VAC: AC power signal

FIG. 1 presents a block diagram of a dimming control system according to an embodiment of the present invention.

FIG. 2 presents a block diagram of the internal circuit of the lamp shown in an embodiment of the present invention.

FIG. 3 presents a schematic diagram of circuit configuration of a dimming control system shown in an embodiment of the present invention.

FIG. 4 presents a block diagram of an internal circuit for processing a power supply and a dimming control signal of a lamp shown in an embodiment of the present invention.

FIG. 5 presents a schematic diagram of a dimming control system shown in an embodiment of the present invention used in conjunction with a control panel and an electronic device.

FIG. 6 shows a block diagram of the internal circuit of the control panel shown in an embodiment of the present invention.

1: Dimming control system

10: Power

11: Conversion circuit

12: Signal controller

13: lamps

Claims (10)

A light fixture comprising: A power line signal control circuit, receiving a dimming control signal provided by a power transmission line; A power supply circuit electrically connected to the power line signal control circuit and receiving the dimming control signal provided by the power line signal control circuit; a lighting circuit electrically connected to the power supply circuit; and A power conversion circuit electrically connected to the power line signal control circuit and the power supply circuit, the power conversion circuit receives a power provided by the power transmission line and supplies power to the power line signal control circuit and the power supply circuit; Wherein the power line signal control circuit controls the power supply circuit to output a lamp dimming signal to the light emitting circuit according to the dimming control signal. The lamp according to claim 1, wherein the power line signal control circuit is provided with an identification circuit and a signal receiving and transmitting circuit, and the signal receiving and transmitting circuit receives and transmits the dimming control signal to the power supply circuit. The lamp as described in claim 2, wherein the power supply circuit is provided with a dimming circuit and a constant current circuit, the dimming circuit is electrically connected to the constant current circuit, the power line signal control circuit is electrically connected to the dimming circuit, the The dimming circuit receives the dimming control signal to generate a dimming driving signal and sends it to the constant current circuit, and the constant current circuit generates the dimming signal of the lamp to the light emitting circuit after receiving the dimming driving signal. The lamp as described in claim 3, further comprising a sensing circuit electrically connected to the power line signal control circuit and the lighting circuit, the sensing circuit is used to monitor the operating status of the lighting circuit and send a sensing signal to The power line signal control circuit transmits the sensing signal through the power transmission line through the signal receiving and transmitting circuit. The lamp as described in claim 4, wherein the power conversion circuit is electrically connected to the dimming circuit and the constant current circuit, the power conversion circuit provides power for the dimming circuit and the constant current circuit to work, and the light emitting circuit is electrically Connect the constant current circuit. The lamp as described in claim 5, wherein the control interface of the dimming circuit is a digital multiplex interface (Digital MultipleX, DMX), and the light emitting circuit includes a single or multiple light emitting diode light sources. A dimming control system with a lamp as described in any one of claim items 3 to 6, comprising: a conversion circuit electrically connected to the lamp through a power transmission line, the conversion circuit electrically connected to a power source; and a signal controller electrically connected to the conversion circuit; Wherein, after receiving the power supply, the conversion circuit converts the power supply into a power supply and outputs it to the lamp through the power transmission line, and the conversion circuit performs signal conversion on the control signal after receiving a control signal generated by the signal controller And output a dimming control signal to the lamp through the power transmission line. The dimming control system as described in claim 7, wherein the power supply and the dimming control signal transmitted between the conversion circuit and the lamp through the power transmission line are transmitted through power line carrier communication, and the connection of the power line carrier communication Therefore, the conversion circuit electrically connects a plurality of lamps in parallel through a set of power transmission lines, and when the signal controller identifies the identification circuit of the lamp through the signal transmission of the conversion circuit and the signal controller When the identification circuit of the lamp recognizes the configuration of the power supply circuit of the lamp, the lamp outputs the dimming driving signal according to the received power supply and the dimming control signal. The dimming control system as described in claim 8, wherein the signal controller is a digital multiplex interface signal controller, and when the lamp receives the power supply and the dimming control signal, the power conversion circuit uses the power supply Perform power conversion and the signal receiving and transmitting circuit receives and transmits the dimming control signal, and generates the dimming driving signal through the dimming circuit, and the constant current circuit generates the dimming of the lamp after receiving the dimming driving signal signal to control the lamp for dimming. The dimming control system as described in claim 9, wherein the dimming control system further includes a control panel, the control panel is provided with a plurality of buttons, and the control panel is electrically connected to the conversion circuit and the plurality of buttons through the power transmission line respectively. For the lamp, the control panel is provided with a bluetooth circuit and a lamp identification circuit. When the lamp identification circuit of the control panel recognizes the configuration of the power supply circuit of the lamp through the identification circuit of the lamp, the control panel passes The bluetooth circuit communicates with an electronic device, and the electronic device displays the information of the lamp connected to the control panel. The lamp identification circuit of the control panel identifies the one or more lamps through the identification circuit of the one or more lamps. When configuring the power supply circuit of multiple lamps, the operation of the button controls the opening or closing of the one or more lamps. When the electronic device is connected through the bluetooth circuit of the control panel, the electronic The device reads the information of the lamp through the control panel or the electronic device modifies the address setting of the identification circuit of the lamp through the control panel, the dimming driving signal is a pulse width modulation signal, and the power supply is an AC power supply.

Images