Light emission control circuit and robot

Abstract

The application provides a light-emitting control circuit and a robot, and relates to the technical field of light-emitting control. The light-emitting control circuit comprises a power module, a main control module and a light-emitting control module. The power module is used for providing a first voltage. The main control module is connected with the power module and is used for generating a light-emitting control signal. The light-emitting control module is connected with the main control module, the power module and a light-emitting module respectively. The light-emitting control module comprises a voltage conversion module and a signal conversion module. The voltage conversion module is used for converting the first voltage into a second voltage to supply power to the light-emitting module through the second voltage. The signal conversion module is used for responding to the light-emitting control signal to perform signal conversion to generate a PWM enhancement signal and sending the PWM enhancement signal to the light-emitting module to drive the light-emitting module to emit light. The application can reduce the cost, improve the integration, guarantee the light-emitting control stability and precision.

Description

Technical Field

[0001] This application relates to the field of light emission control technology, and in particular to a light emission control circuit and a robot. Background Technology

[0002] With the increasing demand for intelligent technology, LED strips, due to their flexible shapes, high energy efficiency, and rich visual expression capabilities, are widely used in robot appearance decoration, status indication, and scenario-based interaction. However, in existing technologies, LED strip light emission control circuit solutions mainly suffer from the following problems: First, when the LED strip wiring is long (due to the dense internal cables of the robot, the LED strip wiring needs to be extended), the high-frequency PWM signal is susceptible to electromagnetic interference (EMI) or line attenuation, which can lead to a decrease in signal amplitude and waveform distortion, and in turn cause problems such as LED strip color distortion, flickering or control failure.

[0003] Secondly, traditional light-emitting control circuits rely on a core controller to achieve multiple power outputs and signal control outputs. The core controllers that meet the requirements are expensive. In addition, the resources of the core controller are occupied by both power supply and signal control, which limits the allocation of computing power in core functions such as motion control and sensor data processing.

[0004] In addition, the components in traditional light-emitting control circuits are scattered around the core controller, lacking modular design, making heat dissipation difficult and occupying a large space, which is difficult to adapt to the compact spatial layout of robots.

[0005] Therefore, designing a low-cost, small-sized light-emitting control circuit that can ensure the stability and accuracy of light-emitting control has become an urgent technical problem to be solved. Utility Model Content

[0006] The main purpose of this application is to provide a light-emitting control circuit and a robot that can reduce costs, increase integration, and ensure the stability and accuracy of light-emitting control.

[0007] In a first aspect, this application provides a light-emitting control circuit for controlling a light-emitting module to emit light. The light-emitting control circuit includes a power supply module, a main control module, and a light-emitting control module. The power supply module provides a first voltage. The main control module is connected to the power supply module and generates a light-emitting control signal. The light-emitting control module is connected to the main control module, the power supply module, and the light-emitting module. The light-emitting control module includes a voltage conversion module and a signal conversion module. The voltage conversion module converts the first voltage into a second voltage to power the light-emitting module. The signal conversion module responds to the light-emitting control signal to perform signal conversion to generate a PWM enhancement signal and sends the PWM enhancement signal to the light-emitting module to drive the light-emitting module to emit light.

[0008] Secondly, this application provides a robot, which includes a light-emitting module and a light-emitting control circuit as described in any one of the embodiments of the first aspect.

[0009] This application provides a light-emitting control circuit and a robot. First, the light-emitting control circuit is divided into a two-level architecture: a "main control module" and a "light-emitting control module." The main control module is only used to generate light-emitting control signals, while the light-emitting control module performs the tasks of outputting the second voltage power supply and the PWM signal. This places lower demands on the hardware functionality of the main control module, reducing its hardware cost. Furthermore, it avoids the main control module's resources being simultaneously occupied by power supply and signal control, improving the allocation of computing power for core functions such as motion control and sensor data processing. Second, the light-emitting control module includes a voltage conversion module and a signal conversion module, capable of converting the input first voltage into a second voltage and supplying it to the light-emitting module. It provides block power and can respond to light-emitting control signals, converting the light-emitting control signals to generate PWM enhancement signals, thereby improving the anti-interference capability of PWM signals, effectively suppressing line noise interference, ensuring no significant attenuation of signal amplitude during long-distance transmission, and thus accurately controlling the light-emitting color of the light-emitting module to meet actual needs. In addition, the voltage conversion module and signal conversion module are integrated into the light-emitting control module. Compared with the existing solution that integrates both voltage conversion module and signal conversion module into the main control module, it further reduces the space occupied around the main control module, improves the heat dissipation effect of the main control module, and facilitates the flexible installation of the main control module in various corners of its application device (such as robot). Attached Figure Description

[0010] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 A schematic diagram of the system architecture of the first light-emitting control circuit provided in the embodiments of this application; Figure 2 A schematic diagram of the system architecture of the second light-emitting control circuit provided in the embodiments of this application; Figure 3 A circuit structure diagram of a PWM signal enhancement module in a light-emitting control circuit provided in this application embodiment; Figure 4 A schematic diagram of the system architecture of the third light-emitting control circuit provided in the embodiments of this application; Figure 5 A circuit structure diagram of a communication module in a light-emitting control circuit provided in an embodiment of this application; Figure 6 A schematic diagram of the system architecture of the fourth light-emitting control circuit provided in the embodiments of this application; Figure 7 This is a circuit diagram of the first step-down module in a light-emitting control circuit provided in an embodiment of this application. Detailed Implementation

[0012] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0013] It should be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0014] It should be understood that, in order to clearly describe the technical solutions of the embodiments of this application, the terms "first" and "second" are used in the embodiments of this application to distinguish identical or similar items with essentially the same function and effect. For example, the first callback function and the second callback function are only used to distinguish different callback functions and do not limit their order. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or execution order, and the terms "first" and "second" do not necessarily mean they must be different.

[0015] It should also be understood that the term "and / or" as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0016] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0017] In existing technologies, the main problems with LED strip lighting control circuit solutions are as follows: First, when the LED strip wiring is long (due to the dense internal cables of the robot, the LED strip wiring needs to be extended), the high-frequency PWM signal is susceptible to electromagnetic interference (EMI) or line attenuation, which can lead to a decrease in signal amplitude and waveform distortion, and in turn cause problems such as LED strip color distortion, flickering or control failure.

[0018] Secondly, traditional light-emitting control circuits rely on a core controller to achieve multiple power outputs and signal control outputs. The core controllers that meet the requirements are expensive. In addition, the resources of the core controller are occupied by both power supply and signal control, which limits the allocation of computing power in core functions such as motion control and sensor data processing.

[0019] In addition, the components in traditional light-emitting control circuits are scattered around the core controller, lacking modular design, making heat dissipation difficult and occupying a large space, which is difficult to adapt to the compact spatial layout of robots.

[0020] To address the aforementioned issues, this application provides a light-emitting control circuit and a robot that can reduce costs, increase integration, and ensure the stability and accuracy of light-emitting control.

[0021] Referring to FIG1, in a first aspect, this application provides a light-emitting control circuit for controlling the light-emitting module 400 to emit light. The light-emitting control circuit includes: a power supply module 100, a main control module 200, and a light-emitting control module 300. The power supply module 100 is used to provide a first voltage. The main control module 200 is connected to the power supply module 100 and is used to generate a light-emitting control signal. The light-emitting control module 300 is connected to the main control module 200, the power supply module 100, and the light-emitting module 400. The light-emitting control module 300 includes a voltage conversion module 310 and a signal conversion module 320. The voltage conversion module 310 is used to convert the first voltage into a second voltage to power the light-emitting module 400. The signal conversion module 320 is used to perform signal conversion in response to the light-emitting control signal to generate a PWM enhancement signal and send the PWM enhancement signal to the light-emitting module 400 to drive the light-emitting module 400 to emit light.

[0022] Preferably, the first voltage is 24V and the second voltage is 12V. The first voltage value and the second voltage value can be appropriately adjusted according to the power supply requirements of each module in the light-emitting control circuit.

[0023] Preferably, the light-emitting module 400 can be a light strip, or the light-emitting module 400 includes a plurality of LEDs arranged at intervals.

[0024] It should be noted that, referring to Figure 1 , Figure 2 The light emission control module 300 includes a voltage conversion module 310 and a signal conversion module 320. The voltage conversion module 310 is connected to the power supply module 100 and the light emission module 400, respectively. The voltage conversion module 310 is used to convert a first voltage into a second voltage to power the light emission module 400. The signal conversion module 320 is connected to the light emission module 400. The signal conversion module 320 is used to perform signal conversion in response to the light emission control signal to generate a PWM enhancement signal and send the PWM enhancement signal to the light emission module 400 to drive the light emission module 400 to emit light. The signal conversion module 320 is also connected to the voltage conversion module 310, and the voltage conversion module 310 is also used to power the signal conversion module 320.

[0025] It should be noted that the signal conversion module 320 is used to convert signals in response to the light emission control signal to generate a PWM enhancement signal. This includes: the signal conversion module 320 responds to the light emission control signal, outputs a PWM signal according to the light emission control signal, and converts the PWM signal to generate a PWM enhancement signal. The amplitude of the PWM enhancement signal is higher than that of the PWM signal. Therefore, compared with the solution of directly outputting the PWM signal, the PWM enhancement signal generated by the signal conversion module 320 has stronger anti-interference ability, can effectively suppress line noise interference, and ensure that the signal amplitude does not attenuate significantly during long-distance transmission. This allows for precise control of the light emission color of the light emission module 400 to meet actual needs.

[0026] Understandably, the light-emitting control module 300 adopts a modular design, which can support multiple light-emitting modules 400 to reuse the same light-emitting control module 300, reducing redundant circuit development. It is especially suitable for scenarios where multiple light-emitting modules 400 are coordinated for robot applications.

[0027] In some embodiments, refer to Figure 2 The signal conversion module 320 also includes a slave control module 321 and a PWM signal enhancement module 322. The slave control module 321 is connected to the master control module 200 and the PWM signal enhancement module 322 respectively. The PWM signal enhancement module 322 is connected to the light-emitting module 400. The slave control module 321 is used to generate a PWM signal in response to the light-emitting control signal. The PWM signal enhancement module 322 is used to enhance the PWM signal to obtain a PWM enhanced signal.

[0028] It is understandable that the amplitude of the PWM enhancement signal is higher than that of the PWM signal. Therefore, compared with the solution of directly outputting the PWM signal, the PWM enhancement signal generated by the signal conversion module 320 has stronger anti-interference ability, can effectively suppress line noise interference, and ensure that the signal amplitude does not attenuate significantly during long-distance transmission, thereby accurately controlling the light emission color of the light-emitting module 400 to meet actual needs.

[0029] In some embodiments, refer to Figure 3 The PWM signal enhancement module 322 includes a first resistor R1 and a first controller U1; One end of the first resistor R1 is connected to the slave control module 321, and the other end of the first resistor R1 is connected to the input terminal of the first controller U1; The output of the first controller U1 is connected to the light-emitting module 400. The first controller U1 is used to enhance the PWM signal to obtain the enhanced PWM signal.

[0030] Preferably, the first controller U1 is a Schmitt trigger, which has hysteresis characteristics and can perform waveform shaping on the output PWM signal to output a PWM enhancement signal with steeper edges and higher amplitude. The type of the first controller U1 can be appropriately changed according to the anti-interference performance requirements of the control circuit and the control requirements of the light-emitting module 400.

[0031] It should be noted that in existing technologies, the attenuation of PWM signals during long-distance transmission is often not effectively enhanced, or is only addressed through simple resistor voltage division or transistor amplification, which cannot meet the amplitude maintenance requirements of high-frequency signals, leading to a decrease in control accuracy. In this application, however, the first controller U1 can perform waveform shaping on the PWM signal with a lower output amplitude to obtain a more stable PWM enhancement signal with steeper edges, higher amplitude, and better stability. This effectively suppresses line noise interference and ensures that the signal amplitude does not significantly attenuate during long-distance transmission, thereby preventing abnormal color phenomena in the LED strip.

[0032] In some embodiments, the amplitude of the PWM signal is 3.3V, and the amplitude of the PWM enhancement signal is 5V.

[0033] In some embodiments, refer to Figure 3 The PWM signal enhancement module 322 also includes a second resistor R2, and the output terminal of the first controller U1 is connected to the light-emitting module 400 through the second resistor R2.

[0034] It should be noted that the second resistor R2 connects the output terminal of the first controller U1 and the light-emitting module 400. The second resistor R2 can achieve impedance matching, suppress signal reflection and ringing effect.

[0035] In some embodiments, refer to Figure 3 The PWM signal enhancement module 322 also includes a first overvoltage protection module 510. One end of the first overvoltage protection module 510 is connected to the output terminal of the first controller U1, and the other end of the first overvoltage protection module 510 is grounded.

[0036] Preferably, the first overvoltage protection module 510 is a transient voltage suppressor.

[0037] It should be noted that by setting the first overvoltage protection module 510, its precise voltage clamping characteristics can effectively suppress rapid spike interference and electrostatic discharge phenomena, further improving the anti-interference capability of the output PWM enhancement signal, thereby achieving more precise control of the light-emitting module 400.

[0038] In some embodiments, refer to Figure 3The PWM signal enhancement module 322 includes a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a first overvoltage protection module 510, a third overvoltage protection module 530, and a first controller U1. The first controller U1 includes two input terminals and two output terminals. One input terminal of the first controller U1 is connected to the slave control module 321 through the first resistor R1, and the other input terminal is connected to the slave control module 321 through the third resistor R3. One output terminal of the first controller U1 is connected to the light-emitting module 400 through the second resistor R2, and the other output terminal is connected to the light-emitting module 400 through the fourth resistor R4. One end of the first overvoltage protection module 510 is connected to one output terminal of the first controller U1, and one end of the third overvoltage protection module 530 is connected to the other output terminal of the first controller U1. The other ends of the first overvoltage protection module 510 and the third overvoltage protection module 530 are both grounded.

[0039] Preferably, the first controller U1 is a dual-channel Schmitt trigger, which can output dual-channel PWM enhancement signals to control the light-emitting module 400, for example, to drive the light components in the light-emitting module 400 to flash in different ways.

[0040] It should be noted that the slave control module 321 is connected to the first resistor R1 through the connection terminal DOUT1, and the light-emitting module 400 is connected to the second resistor R2 through the connection terminal PWM1; the slave control module 321 is connected to the third resistor R3 through the connection terminal DOUT2, and the light-emitting module 400 is connected to the fourth resistor R4 through the connection terminal PWM2.

[0041] Understandably, by setting the second resistor R2 and the fourth resistor R4, impedance matching, signal reflection, and ringing effects can be achieved. In addition, by setting the first overvoltage protection module 510 and the third overvoltage protection module 530, the precise voltage clamping characteristics of both can effectively suppress rapid spike interference and electrostatic discharge phenomena. With the synergistic effect of the first resistor R1, the second resistor R2, the third resistor R3, the fourth resistor R4, the first overvoltage protection module 510, the third overvoltage protection module 530, and the first controller U1, a more interference-resistant PWM enhancement signal can be output, ensuring that the signal amplitude does not attenuate significantly during long-distance transmission, thereby avoiding abnormal color phenomena in the light-emitting module 400.

[0042] In some embodiments, refer to Figure 4 , Figure 5The light emission control module 300 also includes a communication module 330, which is connected to the main control module 200 and the slave control module 321 respectively. The communication module 330 includes a second controller U2, the receiving end RX_1 and the transmitting end TX_1 of the second controller U2 are both connected to the slave control module 321, and the differential signal end of the second controller U2 is connected to the main control module 200.

[0043] It should be noted that by setting up the communication module 330, the communication module 330 is used to transmit the light emission control signal generated by the main control module 200 to the slave control module 321, thereby realizing bidirectional communication interaction between the slave control module 321 and the main control module 200.

[0044] Preferably, the second controller U2 is an RS485 chip. In this application, the device type of the second controller U2 is not limited in too much.

[0045] In some embodiments, refer to Figure 5 The communication module 330 also includes a second overvoltage protection module 520. One end of the second overvoltage protection module 520 is connected to the differential signal terminal of the second controller U2, and the other end of the second overvoltage protection module 520 is grounded.

[0046] Preferably, the second overvoltage protection module 520 is a surge suppression module. In this application, the device type of the second overvoltage protection module 520 is not limited in too much.

[0047] Understandably, if the current output from the main control module 200 to the second controller U2 is large, by setting the second overvoltage protection module 520, the abnormal overcurrent can be quickly discharged, protecting the second controller U2 located at the back end from damage by transient overvoltages such as over-operation overvoltage and electrostatic discharge.

[0048] In some embodiments, refer to Figure 5 The communication module 330 also includes a common-mode filter module 600, which is connected to the differential signal terminal of the second controller U2 and the main control module 200.

[0049] It should be noted that by setting the common-mode filter module 600, common-mode interference can be suppressed, so that the light emission control signal generated by the main control module 200 can be better transmitted to the slave control module 321, thereby achieving precise control of the slave control module 321.

[0050] In some embodiments, refer to Figure 5The communication module 330 includes a second controller U2, a second overvoltage protection module 520, a common-mode filter module 600, a fourth overvoltage protection module 540, a fifth overvoltage protection module 550, a sixth overvoltage protection module 560, and a fifth resistor R5. The receiving terminal RX_1 and the transmitting terminal TX_1 of the second controller U2 are both connected to the slave control module 321. The differential signal terminals of the second controller U2 include a first differential signal terminal and a second differential signal terminal. The common-mode filter module 600 is connected to the first differential signal terminal, the second differential signal terminal, and the master control module 321, respectively. Block 200 is connected; one end of the sixth overvoltage protection module 560 is connected to the first differential signal terminal, and the other end of the sixth overvoltage protection module 560 is connected to the second differential signal terminal; the fifth resistor R5 is connected in parallel with the sixth overvoltage protection module 560; one end of the second overvoltage protection module 520 is connected to the common-mode filter module 600, one end of the fourth overvoltage protection module 540 is connected to the common-mode filter module 600, and the other ends of the second overvoltage protection module 520 and the fourth overvoltage protection module 540 are both grounded; the fifth overvoltage protection module 550 is connected to the common-mode filter module 600.

[0051] It should be noted that the communication module 330 built into the light-emitting control module 300 is connected to the main control module 200 through the connection terminal RS_B and the connection terminal RS_A.

[0052] Preferably, both the fourth overvoltage protection module 540 and the fifth overvoltage protection module 550 are surge suppression modules. In this application, the device types of the fourth overvoltage protection module 540 and the fifth overvoltage protection module 550 are not subject to excessive restrictions.

[0053] It is understandable that the second overvoltage protection module 520, the fourth overvoltage protection module 540, and the fifth overvoltage protection module 550 are located near the connection terminals RS_B and RS_A, which can serve as a front-end large current surge discharge function, thereby realizing overvoltage protection for the second controller U2.

[0054] Understandably, the sixth overvoltage protection module 560 is located on the side of the common-mode filter module 600 away from the connection terminals RS_B and RS_A. It can suppress rapid spike interference and electrostatic discharge through precise voltage clamping characteristics. Together with the second overvoltage protection module 520, the fourth overvoltage protection module 540 and the fifth overvoltage protection module 550 set at the front end, it forms a two-level protection system to further enhance the protection of the second controller U2.

[0055] It is understandable that by setting the fifth resistor R5, impedance matching can be achieved, and signal reflection and ringing effects can be suppressed.

[0056] In some embodiments, refer to Figure 6The voltage conversion module 310 includes a first step-down module 311 and a second step-down module 312. The first step-down module 311 is connected to the power supply module 100 and the light-emitting module 400, respectively. The first step-down module 311 is used to convert a first voltage into a second voltage to power the light-emitting module 400. The second step-down module 312 is connected to the first step-down module 311, the slave control module 321 and the PWM signal enhancement module 322, respectively. The second step-down module 312 is used to convert the second voltage into a third voltage to power the slave control module 321 and the PWM signal enhancement module 322.

[0057] Preferably, the third voltage is 5V or 3.3V. The second step-down module 312 can be designed according to the drive power requirements of the slave control module 321 and the PWM signal enhancement module 322 to output a third voltage that is compatible with the slave control module 321 and the PWM signal enhancement module 322.

[0058] In some embodiments, refer to Figure 6 The second step-down module 312 in the voltage conversion module 310 is connected to the communication module 330 to power the communication module 330 with a third voltage.

[0059] In some embodiments, refer to Figure 7 The first step-down module 311 includes a third controller U3 and peripheral circuits, which consist of resistors, capacitors and inductors.

[0060] Secondly, this application provides a robot, which includes a light-emitting module 400 and a light-emitting control circuit as described in any of the embodiments of the first aspect.

[0061] In some embodiments, the light-emitting module 400 includes a light strip and a switch control module. The voltage conversion module 310 in the light-emitting control circuit is connected to the light strip through the switch control module, and the signal conversion module 320 in the light-emitting control circuit is connected to the switch control module.

[0062] It should be noted that the signal conversion module 320 in the light-emitting control circuit outputs a PWM enhancement signal to drive the switch control module to open or close. When the switch control module is closed, the second voltage output by the voltage conversion module 310 can be transmitted to the light strip through the switch control module, causing the light strip to emit light.

[0063] This application provides a light-emitting control circuit and a robot. First, the light-emitting control circuit is divided into a two-level architecture: a main control module 200 and a light-emitting control module 300. The main control module 200 is only used to generate light-emitting control signals, while the tasks of outputting the second voltage power supply and outputting PWM signals are completed by the light-emitting control module 300. This places lower demands on the hardware functionality of the main control module 200, which helps reduce its hardware cost. Furthermore, it avoids the main control module 200's resources being occupied by both power supply and signal control, improving the allocation of computing power in core functions such as motion control and sensor data processing. Second, the light-emitting control module 300 includes a voltage conversion module 310 and a signal conversion module 320, which can convert the input first voltage into a second voltage and supply it to the light-emitting module. The light-emitting module 400 is powered by the light-emitting control module 300 and can respond to the light-emitting control signal. It can also convert the light-emitting control signal to generate a PWM enhancement signal, which improves the anti-interference capability of the PWM signal, effectively suppresses line noise interference, and ensures that the signal amplitude does not attenuate significantly during long-distance transmission. This allows for precise control of the light-emitting color of the light-emitting module 400 to meet actual needs. In addition, the voltage conversion module 310 and the signal conversion module 320 are integrated into the light-emitting control module 300. Compared with the existing solution that integrates both the voltage conversion module 310 and the signal conversion module 320 into the main control module 200, this further reduces the space occupied around the main control module 200, improves the heat dissipation of the main control module 200, and facilitates the flexible installation of the main control module 200 in various corners of its application device (such as a robot).

[0064] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0065] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0066] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0067] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0068] The above embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of protection of this application. Any non-substantial changes and substitutions made by those skilled in the art based on this application shall fall within the scope of protection claimed by this application.

Claims

1. A light-emitting control circuit, characterized in that, The light-emitting control circuit is used to control the light-emitting module to emit light, and the light-emitting control circuit includes: The power module is used to provide the initial voltage; A main control module, which is connected to the power supply module, is used to generate light emission control signals; A light-emitting control module is connected to the main control module, the power supply module, and the light-emitting module. The light-emitting control module includes a voltage conversion module and a signal conversion module. The voltage conversion module is used to convert a first voltage into a second voltage to power the light-emitting module. The signal conversion module is used to perform signal conversion in response to the light-emitting control signal to generate a PWM enhancement signal and send the PWM enhancement signal to the light-emitting module to drive the light-emitting module to emit light.

2. The light-emitting control circuit according to claim 1, characterized in that, The signal conversion module further includes a slave control module and a PWM signal enhancement module. The slave control module is connected to the master control module and the PWM signal enhancement module respectively. The PWM signal enhancement module is connected to the light-emitting module. The slave control module is used to generate a PWM signal in response to the light-emitting control signal. The PWM signal enhancement module is used to enhance the PWM signal to obtain the enhanced PWM signal.

3. The light-emitting control circuit according to claim 2, characterized in that, The PWM signal enhancement module includes a first resistor and a first controller; One end of the first resistor is connected to the slave control module, and the other end of the first resistor is connected to the input terminal of the first controller; The output terminal of the first controller is connected to the light-emitting module. The first controller is used to enhance the PWM signal to obtain the enhanced PWM signal.

4. The light-emitting control circuit according to claim 3, characterized in that, The PWM signal enhancement module also includes a second resistor, and the output terminal of the first controller is connected to the light-emitting module through the second resistor.

5. The light-emitting control circuit according to claim 3, characterized in that, The PWM signal enhancement module further includes a first overvoltage protection module, one end of which is connected to the output terminal of the first controller, and the other end of which is grounded.

6. The light-emitting control circuit according to claim 2, characterized in that, The light emission control module also includes a communication module, which is connected to both the main control module and the slave control module. The communication module includes a second controller, the receiving end and the transmitting end of the second controller are both connected to the slave control module, and the differential signal end of the second controller is connected to the master control module.

7. The light-emitting control circuit according to claim 6, characterized in that, The communication module further includes a second overvoltage protection module, one end of which is connected to the differential signal terminal of the second controller, and the other end of which is grounded.

8. The light-emitting control circuit according to claim 6, characterized in that, The communication module further includes a common-mode filtering module, which is connected to the differential signal terminal of the second controller and the main control module, respectively.

9. The light-emitting control circuit according to claim 2, characterized in that, The voltage conversion module includes a first step-down module and a second step-down module; The first step-down module is connected to the power module and the light-emitting module respectively. The first step-down module is used to convert the first voltage into a second voltage so as to power the light-emitting module through the second voltage. The second step-down module is connected to the first step-down module, the slave control module, and the PWM signal enhancement module respectively. The second step-down module is used to convert the second voltage into a third voltage so as to power the slave control module and the PWM signal enhancement module through the third voltage.

10. A robot, characterized in that, The robot includes a light-emitting module and a light-emitting control circuit as described in any one of claims 1-9.

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