Power supply control device for robot system mcu

Abstract

The utility model discloses a kind of power supply control device of robot system MCU, including battery access circuit, adapter access circuit, first diode, second diode, charging circuit, adaptation access detection circuit, first power conversion circuit and second power conversion circuit, first diode positive and negative two ends are connected adapter access circuit output end and first power conversion circuit input end respectively, second diode positive and negative two ends are connected battery access circuit output end and second power conversion circuit input end respectively, adaptation access detection circuit connects robot system MCU and adapter access circuit output end, charging circuit input end and output end are connected adapter access circuit output end and battery access circuit respectively.The utility model makes robot system still can work under the condition that battery has no electricity, can improve the work efficiency of robot, so that robot can work for a long time.

Description

Technical Field

[0001] This utility model relates to the field of robot technology, and in particular to a power supply control device for a robot system MCU. Background Technology

[0002] Currently, existing robots primarily rely on batteries to power their entire system. When the batteries run out, the robot cannot continue operating, impacting its work efficiency. Utility Model Content

[0003] The technical problem to be solved by this utility model embodiment is to provide a power supply control device for a robot system MCU, so that the robot can still work when the battery is dead and an external power source is connected.

[0004] To address the aforementioned technical problems, this utility model provides a power supply control device for a robot system MCU, comprising a battery access circuit, an adapter access circuit, a first diode, a second diode, a charging circuit, an adapter access detection circuit, a first power conversion circuit, and a second power conversion circuit. The positive and negative terminals of the first diode are respectively connected to the output terminal of the adapter access circuit and the input terminal of the first power conversion circuit. The positive and negative terminals of the second diode are respectively connected to the output terminal of the battery access circuit and the input terminal of the second power conversion circuit. The output terminals of the first and second power conversion circuits are connected to the robot system MCU. The adapter access detection circuit is connected to both the robot system MCU and the output terminal of the adapter access circuit. The input and output terminals of the charging circuit are respectively connected to the output terminal of the adapter access circuit and the battery access circuit.

[0005] Furthermore, both the first power conversion circuit and the second power conversion circuit consist of a step-down circuit and an LDO circuit.

[0006] Furthermore, the step-down circuit converts the input voltage to 5V and outputs it to the LDO circuit, which in turn converts the 5V input to 3.3V and outputs it to power the robot system's MCU.

[0007] Furthermore, the output of the charging circuit is connected to the battery via a diode.

[0008] Furthermore, the adapter access detection circuit uses an optocoupler. The positive terminal of the optocoupler input is connected to the output terminal of the adapter access circuit, and the positive terminal of the optocoupler output is connected to the GPIO pin of the robot system MCU.

[0009] The beneficial effects of this utility model are as follows: This utility model realizes automatic and seamless switching between battery and external power supply (adapter); when the battery power is exhausted, the robot system can automatically switch to external power supply to ensure that the robot system MCU continues to work stably, effectively avoiding robot work interruption caused by battery power failure, and significantly improving the robot's work efficiency and reliability. Attached Figure Description

[0010] Figure 1 This is a structural block diagram of the power supply control device for the MCU of the robot system according to an embodiment of the present invention.

[0011] Figure 2 This is a circuit diagram of the adapter access circuit, the first diode, and the step-down circuit of the first power conversion circuit in an embodiment of this utility model.

[0012] Figure 3 This is a circuit diagram of the step-down circuit of the battery access circuit, the second diode, and the second power conversion circuit in an embodiment of this utility model.

[0013] Figure 4 This is a circuit diagram of the LDO circuit according to an embodiment of the present invention.

[0014] Figure 5 This is a circuit diagram of the adaptive access detection circuit according to an embodiment of the present utility model.

[0015] Figure 6 This is a circuit diagram of the charging circuit according to an embodiment of the present invention.

[0016] Figure 7 This is a circuit diagram of the MCU of the robot system according to an embodiment of the present invention. Detailed Implementation

[0017] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] In this embodiment of the invention, directional indicators (such as up, down, left, right, front, back, etc.) are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indicators will also change accordingly.

[0019] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0020] Please refer to Figures 1 to 7 The power supply control device of the robot system MCU in this embodiment of the utility model includes a battery access circuit, an adapter access circuit, a first diode, a second diode, a charging circuit, an adapter access detection circuit, a first power conversion circuit, and a second power conversion circuit.

[0021] The positive and negative terminals of the first diode are connected to the output terminal of the adapter access circuit and the input terminal of the first power conversion circuit, respectively. The positive and negative terminals of the second diode are connected to the output terminal of the battery access circuit and the input terminal of the second power conversion circuit, respectively. The output terminals of the first and second power conversion circuits are connected to the robot system MCU. The adapter access detection circuit is connected to the robot system MCU and the output terminal of the adapter access circuit. The input and output terminals of the charging circuit are connected to the output terminal of the adapter access circuit and the battery access circuit, respectively. The output terminal of the charging circuit is connected to the battery access circuit via a diode. The battery access circuit is used to connect the battery and to an external power source (adapter).

[0022] In one implementation, both the first and second power conversion circuits consist of a buck converter and an LDO circuit. The buck converter converts the input voltage to 5V and outputs it to the LDO circuit, which in turn converts the 5V input to 3.3V and outputs it to power the robot system's MCU. The buck converter can use an RT6365GSP chip, and the LDO circuit can use an SGM2205-ADJ chip.

[0023] This invention employs a two-stage power conversion circuit consisting of a step-down circuit and an LDO circuit, which can provide a stable and clean 3.3V operating voltage to the MCU. This design not only improves the power conversion efficiency but also effectively suppresses noise and voltage fluctuations, ensuring the stable operation and lifespan of the robot system MCU, especially the precision chips within it.

[0024] In one implementation, the adapter access detection circuit uses an optocoupler, such as the EL357N(B)(TA)-G. The positive terminal of the optocoupler's input is connected to the output terminal of the adapter access circuit, and the positive terminal of the optocoupler's output is connected to the GPIO pin of the robot system's MCU. This invention uses an adapter access detection circuit (such as an optocoupler) to monitor the external power supply access status in real time and feeds the signal back to the MCU, enabling the system to intelligently identify the power source. Simultaneously, the integrated charging circuit automatically charges the battery when an external power source is connected, and the charging circuit output is connected via a diode, effectively preventing reverse flow of battery current into the charging circuit, simplifying user operation, and achieving automated energy management. The adapter access detection circuit of this invention uses an optocoupler to achieve electrical isolation between the high-voltage side of the external adapter and the low-voltage side of the system MCU. This design not only accurately transmits the adapter access signal but also significantly enhances the system's anti-interference capability and safety, effectively preventing potential damage to the core control unit caused by high-voltage interference.

[0025] Normally, the battery powers the robot system. The battery powers the robot system through the second diode and the second power conversion circuit. When the battery is depleted, the adapter is connected to charge the battery. When the GPIO of the system MCU detects the adapter insertion, the system MCU turns off the second power conversion circuit that powers the system from the battery through the enable (EN) pin. At this time, the adapter charges the battery and powers the system at the same time. The first diode prevents backflow current from the battery power supply into the adapter connection circuit, and the second diode prevents current from flowing back into the battery when the adapter powers the system.

[0026] This invention enables the robot system to continue operating even when the battery is depleted by an external power source, thereby improving the robot's efficiency and allowing it to work continuously for extended periods. This invention also enables automatic switching between dual power supplies, stable voltage conversion, intelligent status detection, and automatic charging management, thus comprehensively enhancing the power supply reliability, stability, and intelligence of the robot system in complex application scenarios within a limited cost.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A power supply control device for a robot system MCU, characterized in that, It includes a battery access circuit, an adapter access circuit, a first diode, a second diode, a charging circuit, an adapter access detection circuit, a first power conversion circuit, and a second power conversion circuit. The positive and negative terminals of the first diode are respectively connected to the output terminal of the adapter access circuit and the input terminal of the first power conversion circuit. The positive and negative terminals of the second diode are respectively connected to the output terminal of the battery access circuit and the input terminal of the second power conversion circuit. The output terminals of the first power conversion circuit and the second power conversion circuit are connected to the robot system MCU. The adapter access detection circuit is connected to the robot system MCU and the output terminal of the adapter access circuit. The input and output terminals of the charging circuit are respectively connected to the output terminal of the adapter access circuit and the battery access circuit.

2. The power supply control device for the robot system MCU as described in claim 1, characterized in that, Both the first power conversion circuit and the second power conversion circuit consist of a step-down circuit and an LDO circuit.

3. The power supply control device for the robot system MCU as described in claim 2, characterized in that, The step-down circuit converts the input voltage to 5V and outputs it to the LDO circuit. The LDO circuit then converts the 5V input to 3.3V and outputs it to power the robot system's MCU.

4. The power supply control device for the robot system MCU as described in claim 1, characterized in that, The output of the charging circuit is connected to the battery via a diode.

5. The power supply control device for the robot system MCU as described in claim 1, characterized in that, The adapter access detection circuit uses an optocoupler. The positive terminal of the optocoupler input is connected to the output terminal of the adapter access circuit, and the positive terminal of the optocoupler output is connected to the GPIO pin of the robot system MCU.

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