A more efficient power supply tiered system for machine joints

Abstract

A more efficient stepped power supply system for machine joints utilizes three stepped circuits, each containing a chip. The first-stage circuit reduces the input power voltage to 12V, and this improved first-stage circuit adds current-limiting protection compared to traditional circuits. The second-stage circuit reduces the 12V voltage to 5V, and the third-stage circuit reduces the 5V voltage to 3.3V. This method enables higher efficiency and a more stable power supply for different loads. This patented solution offers greater stability and reliability than traditional power supply methods, effectively improving the working efficiency of machine joints and ensuring stable machine operation, thus possessing high practical value.

Description

Technical Field

[0001] This invention belongs to the field of power supply systems, specifically a more efficient power supply stepped power supply system for machine joints. Background Technology

[0002] Currently, with the advancement of human technology, robots can replace humans in performing tasks in harsh environments. In the high-precision electronic equipment of robots, the stability and reliability of the robot's power supply are very important, as they can not only improve the performance and work efficiency of the equipment, but also extend its service life.

[0003] Existing power supply methods mainly include linear regulated power supplies and switching regulated power supplies. Linear regulated power supplies have lower costs but lower efficiency and are prone to overheating in high-power applications. Switching regulated power supplies have higher efficiency but higher costs and are prone to noise. A stepped voltage circuit is a circuit that reduces high voltage to low voltage. It is usually composed of multiple cascaded circuits and can achieve higher energy utilization and more stable voltage output. Summary of the Invention

[0004] This invention primarily addresses the problems of low power supply efficiency and low energy utilization in existing technologies, leading to energy waste and overheating. Poor power supply stability can result in low operating efficiency, performance degradation, and shortened lifespan for equipment such as machine joints. This invention provides a more efficient stepped power supply system for machine joints. Through stepped voltage design and improvements to the traditional second-order circuit design, it achieves a power supply circuit that provides a more stable voltage for each load, offering better technical means for machine joint design and broadening its application areas.

[0005] The above-mentioned objective of this invention is achieved through the following technical solutions:

[0006] A more efficient power supply system for machine joints is disclosed, wherein the circuitry of the machine joints uses three stepped circuits, each containing a control chip. The control chips for the first, second, and third stepped circuits are chip U2, chip U1, and chip U3, respectively.

[0007] The first-order circuit consists of power supply voltage PVDD, ground GND, supply voltage VCC-12V, chip U2, and components such as capacitors and resistors. The power supply voltage PVDD is connected to the left end of diode D1 and the upper end of Zener diode D4. The right end of diode D1 is connected to the left end of resistor R2, and the right end of resistor R2 is connected to pin 2 of chip U2. Pin 2 of chip U2 is connected to the left end of resistor R3, the upper end of resistor R5, the upper end of capacitor C12, and the upper end of capacitor C13. Pin 4 of chip U2 is connected to the right end of resistor R3. Pin 3 of chip U2 is connected to the lower end of resistor R5 and the upper end of resistor R10. Pin 7 of chip U2 is connected to the left side of capacitor C4. The right side of capacitor C4 is connected to the left side of inductor L2. Pin 8 of chip U2 is connected to the left side of inductor L2. The right side of inductor L2 is connected to the supply voltage VCC-12V. The left end of resistor R1 is connected to the left end of inductor L2. The right end of resistor R1 is connected to the left end of capacitor C1. The right end of capacitor C1 is connected to the right end of inductor L2. Pin 6 of chip U2 is connected to diode... To the left of diode D3, and to the right of diode D3, is the power supply voltage VCC-12V. Pin 5 of chip U2 is connected to the upper end of capacitor C15, the lower end of capacitor C5, the lower end of resistor R4, and the upper end of resistor R9. The upper end of capacitor C5 and the upper end of resistor R4 are connected to the power supply voltage VCC-12V. The power supply voltage VCC-12V is connected to the upper end of capacitor C6 and the upper end of capacitor C7. The lower end of capacitor C6 is connected to the upper end of resistor R8. The lower end of resistor R8 is connected to ground GND. The lower ends of Zener diode D4, capacitor C12, capacitor C13, resistor R10, pin 1 of chip U2, pin 0 of chip U2, the lower end of capacitor C15, the lower end of resistor R9, and the lower end of capacitor C7 are connected to ground GND.

[0008] The second-order circuit consists of a supply voltage VCC-12V, a regulated power supply of 12V0, ground GND, a supply voltage VCC-5V, a regulated power supply of 5V0, a ​​control chip U1, and components such as capacitors and resistors. The left end of the supply voltage VCC-12V is connected to the right end of capacitor C2. The right end of the supply voltage VCC-12V outputs a regulated power supply of 12V0. The regulated power supply of 12V0 is connected to pin 5 of chip U1 and the left end of resistor R6. The right end of resistor R6 is connected to pin 4 of chip U1. Pin 1 of chip U1... Connect the left end of capacitor C3. Connect pin 6 of chip U1 to the left end of inductor L1 and diode D2. Connect pin 3 of chip U1 to the upper end of resistor R11 and the left end of resistor R7. Connect the right end of inductor L1, the right end of resistor R7, and the upper end of capacitor C14 to the power supply voltage VCC-5V. The right end of the power supply voltage VCC-5V outputs a regulated power supply of 5V0. Connect the left end of capacitor C2, pin 2 of chip U1, the lower end of resistor R11, the right end of diode D2, and the lower end of capacitor C14 to ground GND.

[0009] The third-order circuit consists of components such as a power supply voltage VCC-5V, ground GND, a power supply voltage VCC-3.3V, a control chip U3, and capacitors. The power supply voltage VCC-5V is connected to the upper end of capacitor C8, the upper end of capacitor C9, and pin 3 of chip U3. The power supply voltage VCC-3.3V is connected to the upper end of capacitor C10, the upper end of capacitor C11, and pin 2 of chip U3. The lower ends of capacitors C8, C9, C10, and C11, and pin 1 of chip U3 are connected to ground GND.

[0010] The input power supply voltage is reduced to 12V. The improved first-stage circuit adds current-limiting protection compared to traditional circuits. The second-stage circuit reduces the 12V voltage to 5V, and the third-stage circuit reduces the 5V voltage to 3.3V. The 12V voltage powers the mechanical joint, the 5V voltage is a transitional voltage used to mitigate overvoltage, and the 3.3V voltage powers some chips and components. This method achieves higher efficiency and a more stable power supply. This patented solution is more stable and reliable than traditional power supply methods, effectively improving the working efficiency of the machine joints and ensuring stable machine operation, thus possessing high practical value.

[0011] In summary, the present invention includes at least one of the following beneficial technical effects:

[0012] 1. A three-step step-down method is adopted to ensure stable output voltages of 12V, 5V, and 3.3V in the circuit. The 12V is used to drive the mechanical joint, the 5V is just a transition voltage used to alleviate overvoltage, and the 3.3V is used to power some chips and components. Compared with the traditional two-step step-down circuit, this method enables the circuit to achieve higher energy utilization efficiency while ensuring stability and reliability, thus enhancing the dynamic performance of the mechanical joint.

[0013] 2. Compared with the traditional two-stage step-down circuit, it adds current limiting protection, which can effectively protect the machine joint circuit from abnormal conditions such as short circuits, thereby improving the safety of the circuit.

[0014] 3. By adopting a multi-stage stepped voltage reduction method, it can adapt to the voltage requirements of different components and chips. Furthermore, since each circuit has a corresponding control chip, it can achieve more precise voltage control, thereby improving the stability and reliability of the machine joint circuit and reducing power supply heat generation and power loss under full load operation.

[0015] 4. The power supply circuit design is better matched to the driver board, saving space. The use of fewer power supply circuit components optimizes the layout of the machine joint's driver board, resulting in a smaller power supply circuit footprint and saving significant space resources. This overcomes the drawback of traditional machine joints being too large. Attached Figure Description

[0016] Figure 1 This is a diagram of the power supply ladder method for the machine joints of the present invention;

[0017] Figure 2 This is a first-order power supply circuit diagram for the machine joint of the present invention;

[0018] Figure 3 This is a second-order power supply circuit diagram for the machine joint of the present invention;

[0019] Figure 4 This is a third-order power supply circuit diagram for the machine joint of the present invention;

[0020] Figure 5 It is a traditional second-order power supply circuit diagram used in machine joints;

[0021] In the diagram: PVDD power supply voltage, VCC-12V, VCC-5V, VCC-3.3V power supply voltage, 12V0, 5V0 regulated power supply, ground GND, U1 chip, U2 chip, U3 chip, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11 resistors, C1, C2, C3, C4, C5, C6, C7, C8, C9, C10, C11, C12, C13, C14, C15 capacitors, D1, D2, D3 diodes, D4 Zener diode, L1, L2 inductors. Implementation

[0022] This invention primarily addresses the problems of low power supply efficiency and low energy utilization in existing technologies, leading to energy waste and overheating. Poor power supply stability can result in low operating efficiency, performance degradation, and shortened lifespan for equipment such as machine joints. This invention provides a more efficient stepped power supply system for machine joints. Through stepped voltage design and improvements to the traditional second-order circuit design, it achieves a power supply circuit that provides a more stable voltage for each load, offering better technical means for machine joint design and broadening its application areas.

[0023] The above-mentioned objective of this invention is achieved through the following technical solutions:

[0024] A more efficient power supply system for machine joints is disclosed, wherein the circuitry of the machine joints uses three stepped circuits, each containing a control chip. The control chips for the first, second, and third stepped circuits are chip U2, chip U1, and chip U3, respectively.

[0025] The first-order circuit consists of power supply voltage PVDD, ground GND, supply voltage VCC-12V, chip U2, and components such as capacitors and resistors. The power supply voltage PVDD is connected to the left end of diode D1 and the upper end of Zener diode D4. The right end of diode D1 is connected to the left end of resistor R2, and the right end of resistor R2 is connected to pin 2 of chip U2. Pin 2 of chip U2 is connected to the left end of resistor R3, the upper end of resistor R5, the upper end of capacitor C12, and the upper end of capacitor C13. Pin 4 of chip U2 is connected to the right end of resistor R3. Pin 3 of chip U2 is connected to the lower end of resistor R5 and the upper end of resistor R10. Pin 7 of chip U2 is connected to the left side of capacitor C4. The right side of capacitor C4 is connected to the left side of inductor L2. Pin 8 of chip U2 is connected to the left side of inductor L2. The right side of inductor L2 is connected to the supply voltage VCC-12V. The left end of resistor R1 is connected to the left end of inductor L2. The right end of resistor R1 is connected to the left end of capacitor C1. The right end of capacitor C1 is connected to the right end of inductor L2. Pin 6 of chip U2 is connected to diode... To the left of diode D3, and to the right of diode D3, is the power supply voltage VCC-12V. Pin 5 of chip U2 is connected to the upper end of capacitor C15, the lower end of capacitor C5, the lower end of resistor R4, and the upper end of resistor R9. The upper end of capacitor C5 and the upper end of resistor R4 are connected to the power supply voltage VCC-12V. The power supply voltage VCC-12V is connected to the upper end of capacitor C6 and the upper end of capacitor C7. The lower end of capacitor C6 is connected to the upper end of resistor R8. The lower end of resistor R8 is connected to ground GND. The lower ends of Zener diode D4, capacitor C12, capacitor C13, resistor R10, pin 1 of chip U2, pin 0 of chip U2, the lower end of capacitor C15, the lower end of resistor R9, and the lower end of capacitor C7 are connected to ground GND.

[0026] The second-order circuit consists of a supply voltage VCC-12V, a regulated power supply of 12V0, ground GND, a supply voltage VCC-5V, a regulated power supply of 5V0, a ​​control chip U1, and components such as capacitors and resistors. The left end of the supply voltage VCC-12V is connected to the right end of capacitor C2. The right end of the supply voltage VCC-12V outputs the regulated power supply of 12V0. The regulated power supply of 12V0 is connected to pin 5 of chip U1 and the left end of resistor R6. The right end of resistor R6 is connected to pin 4 of chip U1. Pin 1 of chip U1 is connected to... The left end of capacitor C3 is connected to the left end of inductor L1 and diode D2. The left end of resistor R11 and the left end of resistor R7 are connected to the left end of chip U1. The right end of inductor L1, the right end of resistor R7 and the upper end of capacitor C14 are connected to the power supply voltage VCC-5V. The right end of the power supply voltage VCC-5V outputs a regulated power supply of 5V0. The left end of capacitor C2, the second pin of chip U1, the lower end of resistor R11, the right end of diode D2 and the lower end of capacitor C14 are connected to ground GND.

[0027] The third-order circuit consists of components such as a power supply voltage VCC-5V, ground GND, a power supply voltage VCC-3.3V, a control chip U3, and capacitors. The power supply voltage VCC-5V is connected to the upper end of capacitor C8, the upper end of capacitor C9, and pin 3 of chip U3. The power supply voltage VCC-3.3V is connected to the upper end of capacitor C10, the upper end of capacitor C11, and pin 2 of chip U3. The lower ends of capacitors C8, C9, C10, and C11, and pin 1 of chip U3 are connected to ground GND.

[0028] The input power supply voltage is reduced to 12V. The improved first-stage circuit adds current-limiting protection compared to traditional circuits. The second-stage circuit reduces the 12V voltage to 5V, and the third-stage circuit reduces the 5V voltage to 3.3V. The 12V voltage powers the mechanical joint, the 5V voltage is a transitional voltage used to mitigate overvoltage, and the 3.3V voltage powers some chips and components. This method achieves higher efficiency and a more stable power supply. This patented solution is more stable and reliable than traditional power supply methods, effectively improving the working efficiency of the machine joints and ensuring stable machine operation, thus possessing high practical value.

[0029] This invention presents a more efficient power supply system for machine joints using a stepped power supply. By employing a three-step circuit to step down the voltage, it can achieve stable output voltages of 12V, 5V, and 3.3V. The 12V is used to drive the mechanical joint, the 5V is just a transition voltage used to alleviate overvoltage, and the 3.3V is used to power some chips and components.

[0030] Specifically, the power supply consists of three stepped circuits, each containing a control chip. The first-stage circuit comprises the power supply voltage PVDD, ground GND, supply voltage VCC-12V, chip U2, and components such as capacitors and resistors. After power-on, the power supply voltage PVDD is connected to the circuit, conducting diode D1. The voltage load passes through resistor R2 and connects to pin 2 (VIN) of chip U2 to provide power to chip U2. Pin 7 (BST) of chip U2 steps down the voltage and connects to the left end of capacitor C4. The right end of capacitor C4 connects to the left end of inductor L2 and the left end of resistor R1. The right end of resistor R1 connects to the left end of capacitor C1. The right ends of capacitor C1 and inductor L2 connect to the supply voltage VCC-12V. The first-stage circuit reduces the input power supply voltage to 12V, which provides power to the drive and the second-stage circuit's supply voltage VCC-12V. (Compared to the traditional second-stage power supply circuit diagram used in machine joints...) Figure 5 Compared to the first-order circuit, the second-order circuit adds a current limiting protection section, namely, adding resistor R2, diode D1, Zener diode D4, resistor R4, resistor R8, resistor R9, capacitor C6, and capacitor C11. The above components and chip U2 form a circuit to add the current limiting protection function, which can effectively protect the machine joint circuit from abnormal conditions such as short circuits.

[0031] Specifically, the second-order circuit consists of components such as a supply voltage VCC-12V, a regulated power supply 12V0, ground GND, a supply voltage VCC-5V, a regulated power supply 5V, a control chip U1, and capacitors and resistors. The supply voltage VCC-12V outputs the regulated power supply 12V0, which is connected to the voltage input VIN at pin 5 of chip U1. Pin 2 of chip U1 is grounded, and pin 4 EN of chip U1 is connected to the 12V regulated power supply 12V0 through resistor R6, making it high. This enables chip U1 to start working. Pin 1 BST of chip U1 is also activated, outputting a transition voltage of 5V through capacitor C3 and inductor L1. The regulated power supply 5V0 is then used as the power supply input to the third-order circuit. The second-order circuit reduces the 12V voltage to 5V, generating a transition voltage to alleviate overvoltage and ensure a more stable and reliable circuit.

[0032] Specifically, the third-order circuit consists of a power supply voltage of VCC-5V, ground line GND, a power supply voltage of VCC-3.3V, chip U3, and capacitors. Chip U3, along with capacitors C8, C9, C10, and C11, form a loop and are grounded. The power supply voltage of VCC-5V is applied to chip U3 through the Vin input terminal (pin 3). When chip U3 is operating, its Vout output terminal (pin 2) outputs VCC 3.3V. The third-order circuit reduces the 5V voltage to 3.3V, supplying power to some of the chips and components in the circuit. Each circuit in the entire power supply circuit has a corresponding control chip, enabling more precise voltage control and improving the stability and reliability of the machine's joint circuits. Because the voltage of each circuit undergoes a stepped voltage reduction process, it can adapt to the voltage requirements of different components and chips, while also reducing power generation and power loss under full load operation, thus improving energy efficiency. Furthermore, the multi-stage stepped voltage reduction method also saves space, optimizes the layout of the drive board of the machine joint, and reduces the space occupied by the power supply circuit, thus overcoming the disadvantage of traditional machine joints being too large. Therefore, the stepped power supply method for machine joints of the present invention can achieve higher efficiency and a more stable power supply, effectively improve the working efficiency of the machine joint, ensure the stable operation of the machine, and has high practical value.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A more efficient power supply tiered system for machine joints, characterized in that: The circuit of the machine joint uses three ladder circuits, each containing a control chip. The control chips for the first-stage circuit, the second-stage circuit, and the third-stage circuit are chip U2, chip U1, and chip U3, respectively. The power supply voltage VCC-12V at the output of the first-stage circuit serves as the power supply voltage VCC-12V at the input of the second-stage circuit, and the power supply voltage VCC-5V at the output of the second-stage circuit serves as the power supply voltage VCC-5V at the input of the third-stage circuit. The first-order circuit consists of a power supply voltage PVDD, ground GND, supply voltage VCC-12V, chip U2, and capacitor and resistor components. The power supply voltage PVDD is connected to the left end of diode D1 and the upper end of Zener diode D4. The right end of diode D1 is connected to the left end of resistor R2. The right end of resistor R2 is connected to pin 2 of chip U2. Pin 2 of chip U2 is connected to the left end of resistor R3, the upper end of resistor R5, the upper end of capacitor C12, and the upper end of capacitor C13. Pin 4 of chip U2 is connected to the right end of resistor R3. Pin 3 of chip U2 is connected to the lower end of resistor R5 and the upper end of resistor R10. Pin 7 of chip U2 is connected to the left side of capacitor C4. The right side of capacitor C4 is connected to the left side of inductor L2. Pin 8 of chip U2 is connected to the left side of inductor L2. The right side of inductor L2 is connected to the supply voltage VCC-12V. The resistor R1... The left end of the resistor R1 is connected to the left end of the inductor L2. The right end of the resistor R1 is connected to the left end of the capacitor C1. The right end of the capacitor C1 is connected to the right end of the inductor L2. Pin 6 of the chip U2 is connected to the left side of the diode D3. The right side of the diode D3 is connected to the power supply voltage VCC-12V. Pin 5 of the chip U2 is connected to the upper end of the capacitor C15, the lower end of the capacitor C5, the lower end of the resistor R4, and the upper end of the resistor R9. The upper ends of the capacitor C5 and the upper ends of the resistor R4 are connected to... The power supply voltage is VCC-12V. The power supply voltage VCC-12V is connected to the upper end of capacitor C6 and the upper end of capacitor C7. The lower end of capacitor C6 is connected to the upper end of resistor R8. The lower end of resistor R8 is connected to ground GND. The lower ends of Zener diode D4, capacitor C12, capacitor C13, resistor R10, pin 1 of chip U2, pin 0 of chip U2, capacitor C15, resistor R9, and capacitor C7 are connected to ground GND.

2. The more efficient power supply tiered system for machine joints according to claim 1, characterized in that: The second-order circuit consists of a supply voltage VCC-12V, a regulated power supply of 12V0, ground GND, a supply voltage VCC-5V, a regulated power supply of 5V0, a ​​control chip U1, and components such as capacitors and resistors. The left end of the supply voltage VCC-12V is connected to the right end of capacitor C2. The right end of the supply voltage VCC-12V outputs the regulated power supply of 12V0. The regulated power supply of 12V0 is connected to pin 5 of chip U1 and the left end of resistor R6. The right end of resistor R6 is connected to pin 4 of chip U1. Pin 1 of chip U1 is connected to... The left end of capacitor C3 and pin 6 of chip U1 are connected to the left end of inductor L1 and diode D2. Pin 3 of chip U1 is connected to the upper end of resistor R11 and the left end of resistor R7. The right end of inductor L1, the right end of resistor R7, and the upper end of capacitor C14 are connected to the power supply voltage VCC-5V. The right end of the power supply voltage VCC-5V outputs a 5V regulated power supply 5V0. The left end of capacitor C2, pin 2 of chip U1, the lower end of resistor R11, the right end of diode D2, and the lower end of capacitor C14 are connected to ground GND.

3. A more efficient power supply tiered system for machine joints according to claim 1, characterized in that: The third-order circuit consists of components such as a power supply voltage VCC-5V, ground GND, a power supply voltage VCC-3.3V, a control chip U3, and capacitors. The power supply voltage VCC-5V is connected to the upper end of capacitor C8, the upper end of capacitor C9, and pin 3 of chip U3. The power supply voltage VCC-3.3V is connected to the upper end of capacitor C10, the upper end of capacitor C11, and pin 2 of chip U3. The lower ends of capacitors C8, C9, C10, and C11, and pin 1 of chip U3 are connected to ground GND.

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