CN213638286U - LED light modulation device - Google Patents

Abstract

The utility model discloses a LED device of adjusting luminance, including the signal transmitter of adjusting luminance that connects gradually, first photoelectric isolation converter, controller, second photoelectric isolation converter, constant current output module and LED lamp, the signal transmitter of adjusting luminance sends the signal of adjusting luminance through first photoelectric isolation converter conveys to the controller, after the signal of adjusting luminance was received to the controller, carry out the operation and handle and obtain control signal, through second photoelectric isolation converter conveys control signal to constant current output module controls constant current output module's output current size to adjust the luminance of LED lamp. The LED dimming device in this application, through the switch-on and the disconnection of the adjusting resistance of controller control constant current output end, and then adjust the electric current size of LED lamp, realize the function of LED lamp luminance adjustable.

Description

LED light modulation device

Technical Field

The utility model relates to a LED device of adjusting luminance.

Background

The machine-mounted component is used for monitoring the working states of important airplane systems and equipment such as airplane fuel oil, hydraulic pressure, flight control, an engine, a power supply and the like. When the system or the equipment has faults, the pilot is warned in the forms of light flashing, text display, voice prompt and the like.

The originally designed onboard finished day and night dimming control signal realizes dimming by manually operating a dimming knob by a pilot. The mode has certain defects, the dimming knob is small, the pilot is difficult to perform dimming operation by wearing the glove, and the pilot can obviously change the brightness by rotating for a large half circle during dimming, so that the normal flight of the pilot is influenced.

Disclosure of Invention

The utility model aims at providing a LED device of adjusting luminance for solving the technical problem that current manual operation was adjusted luminance and is brought, realizing that machine carries the finished product and under the control of day night dimming signal, realizes the automatic dimming that LED shows luminance.

For solving the technical problem, the utility model provides a LED device of adjusting luminance, including the signal transmitter of adjusting luminance, first optoelectronic isolation converter, controller, second optoelectronic isolation converter, constant current output module and the LED lamp that connects gradually, the signal transmitter of adjusting luminance sends the signal warp of adjusting luminance first optoelectronic isolation converter conveys to the controller, after the signal of adjusting luminance was received to the controller, carry out the operation and handle and obtain control signal, through the second optoelectronic isolation converter conveys control signal to constant current output module controls constant current output module's output current size to adjust the luminance of LED lamp.

In an optional embodiment of the present application, an output end of the constant current output module is provided with an adjusting resistor, the adjusting resistor is connected in parallel with the LED, and the controller controls the adjusting resistor to be turned on or off.

In an optional embodiment of the present application, the constant current output module includes 8 small output terminals, each two output terminals are connected in parallel to form 4 large output terminals, and each large output terminal is connected in parallel to be provided with an adjusting resistor and an LED lamp.

In an optional embodiment of the present application, the output current of the small output is 70mA, and the output current of the large output is 140 mA.

In an optional embodiment of the present application, the constant current output module is a constant current output chip TPS 92638-Q1.

The application provides a pair of LED dimming device, including the signal transmitter of adjusting luminance, first optoelectronic isolation converter, controller, second optoelectronic isolation converter, constant current output module and the LED lamp that connects gradually, the signal transmitter of adjusting luminance sends the signal warp of adjusting luminance first optoelectronic isolation converter conveys to the controller, after the signal of adjusting luminance was received to the controller, carry out the operation and handle and obtain control signal, through the second optoelectronic isolation converter conveys control signal to constant current output module controls constant current output module's output current size to adjust the luminance of LED lamp.

According to the LED dimming device, dimming signals are transmitted to the controller, and after the controller receives the signals, the controller controls the on and off of the adjusting resistor of the constant-current output end, so that the current of the LED lamp is adjusted, and the function of adjusting the brightness of the LED lamp is achieved.

Drawings

In order to clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic diagram of an LED dimming device according to an embodiment of the present application.

Fig. 2 is a schematic diagram of an output module in an embodiment of the present application.

Detailed Description

In order to make the technical field better understand the solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

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 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.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

As shown in fig. 1 and fig. 2, fig. 1 is a schematic diagram of an LED dimming device according to an embodiment of the present application. Fig. 2 is a schematic diagram of an output module in an embodiment of the present application. The LED dimming device comprises: the LED lamp dimming circuit comprises a dimming signal transmitter, a first photoelectric isolation converter, a controller, a second photoelectric isolation converter, a constant current output module and an LED lamp which are sequentially connected, wherein the dimming signal transmitter transmits a dimming signal to the controller through the first photoelectric isolation converter, the controller receives the dimming signal and then performs operation processing to obtain a control signal, the second photoelectric isolation converter transmits the control signal to the constant current output module, and the output current of the constant current output module is controlled, so that the brightness of the LED lamp is adjusted.

The LED is particularly sensitive to current, the driving mode of the LED is generally constant current driving, and the brightness adjustment of the LED can be realized by adjusting the current of the LED. In this application, constant current output module's output is equipped with adjusting resistor, adjusting resistor with LED parallel connection, the controller control adjusting resistor switches on or breaks off, promptly through changing switching on or breaking off of adjusting resistor to the electric current size through the LED lamp changes, and the electric current is big promptly, and LED luminance is big, and the electric current is little, and LED luminance is little, and then adjusts the luminance of LED lamp.

The LED includes two driving modes: one is a constant voltage source supplying a plurality of constant current sources, each of which individually supplies power to each of the LEDs. The mode is flexible to combine, and one path of LED fails without influencing the work of other LEDs; the other type is direct constant current power supply, and the LEDs are operated in series or in parallel, so that the LED constant current power supply has the advantages of low cost and poor flexibility, and the problem that the operation of other LEDs is not influenced due to the failure of one LED is solved. The first driving mode is adopted in the application, a plurality of constant current sources are adopted, and each constant current source independently supplies power to each path of LED. As shown in fig. 2, the constant current output module is a constant current output chip TPS92638-Q1, and includes 8 small output terminals, the output current of the small output terminal is 70mA, and two output terminals are connected in parallel to form 4 large output terminals, so that the output current of each large output terminal is 140mA, and each large output terminal is provided with a regulating resistor and an LED lamp in parallel. And after receiving the dimming signal, the controller controls the on and off of the adjusting resistor at the constant current output end, so that the current of the LED lamp is adjusted, and the function of adjusting the brightness of the LED lamp is realized.

The application provides a LED dimming device includes: the LED lamp dimming circuit comprises a dimming signal transmitter, a first photoelectric isolation converter, a controller, a second photoelectric isolation converter, a constant current output module and an LED lamp which are sequentially connected, wherein the dimming signal transmitter transmits a dimming signal to the controller through the first photoelectric isolation converter, the controller receives the dimming signal and then performs operation processing to obtain a control signal, the second photoelectric isolation converter transmits the control signal to the constant current output module, and the output current of the constant current output module is controlled, so that the brightness of the LED lamp is adjusted. The dimming signal is transmitted to the controller, and after the controller receives the signal, the controller controls the on and off of the adjusting resistor at the constant current output end, so that the current of the LED lamp is adjusted, and the function of adjusting the brightness of the LED lamp is realized. Compared with the traditional manual operation, the dimming device is more intelligent and simpler to operate.

It should be noted that, in this specification, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in when used, and are used only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

It should also be noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are intended to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include elements inherent in the list. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element. In addition, parts of the above technical solutions provided in the embodiments of the present application, which are consistent with the implementation principles of corresponding technical solutions in the prior art, are not described in detail so as to avoid redundant description.

The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims (5)

1. The LED dimming device is characterized by comprising a dimming signal transmitter, a first photoelectric isolation converter, a controller, a second photoelectric isolation converter, a constant current output module and an LED lamp which are sequentially connected, wherein the dimming signal transmitter transmits a dimming signal to be transmitted to the controller through the first photoelectric isolation converter, the controller receives the dimming signal and then performs operation processing to obtain a control signal, the second photoelectric isolation converter transmits the control signal to the constant current output module, and the output current of the constant current output module is controlled, so that the brightness of the LED lamp is adjusted.

2. The LED dimming device of claim 1, wherein an output end of the constant current output module is provided with a regulating resistor, the regulating resistor is connected in parallel with the LED, and the controller controls the regulating resistor to be turned on or off.

3. The LED dimming device of claim 2, wherein the constant current output module comprises 8 small output terminals, each two output terminals are connected in parallel to form 4 large output terminals, and each large output terminal is connected in parallel to form a regulating resistor and an LED lamp.

4. An LED dimming device as claimed in claim 3, wherein the output current of the small output terminal is 70mA, and the output current of the large output terminal is 140 mA.

5. An LED dimming device as claimed in any one of claims 1 to 4, wherein the constant current output module is a constant current output chip TPS 92638-Q1.

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