Laser galvanometer power supply system and laser galvanometer power supply

Abstract

The utility model provides a laser galvanometer power supply system and a laser galvanometer power supply, and the laser galvanometer power supply system comprises a power supply input module which comprises a first voltage DC power supply and a second voltage DC power supply; the plurality of cascaded voltage reduction modules are connected with the power supply input module; the plurality of voltage stabilizing modules are connected with the power supply input module; the power output module is connected with the voltage reduction module and the voltage stabilization module; wherein the plurality of cascaded voltage reduction modules are used for carrying out graded voltage reduction on a first voltage direct current power supply to obtain a plurality of voltage reduction voltage direct currents, and the voltage stabilization module is used for carrying out voltage stabilization on a second voltage direct current power supply to obtain voltage stabilization voltage direct currents; the power output module is used for outputting the plurality of voltage reduction voltage direct currents and the plurality of voltage stabilization voltage direct currents to a plurality of assemblies in the laser galvanometer system respectively, reliable and flexible voltage support is provided for the assemblies in the laser galvanometer system, and therefore safe and stable power supply to the galvanometer is achieved.

Description

Technical Field

[0001] The present application relates to the field of laser galvanometer technology, and in particular to a laser galvanometer power supply system and a laser galvanometer power supply. Background Art

[0002] Traditional laser galvanometer power supply systems often encounter problems due to unstable voltage or a single voltage source that cannot meet the specific needs of different components within the system. For example, in laser marking applications, the galvanometer requires a precise and stable power supply to ensure efficient and smooth operation. However, in actual use, factors such as power supply fluctuations, electromagnetic interference, and temperature changes can cause unstable output voltage, thus affecting the positioning accuracy and service life of the galvanometer.

[0003] In addition, laser galvanometer systems usually contain multiple components that require different voltage levels for power supply, such as control circuits and motor drivers. If only a single voltage source is used, complex conversion circuits are required to adapt to these different requirements, which not only increases the complexity and cost of the system, but also introduces additional noise and loss, further affecting the performance of the system. Utility Model Content

[0004] The main purpose of the embodiments of the present application is to propose a laser galvanometer power supply system and a laser galvanometer power supply, which can provide reliable and flexible voltage support for each component in the laser galvanometer system by cascading multiple step-down modules and connecting voltage stabilizing modules in a modular manner, thereby achieving safe and stable power supply for the galvanometer.

[0005] In the first aspect, to achieve the above-mentioned purpose, an embodiment of the present application proposes a laser galvanometer power supply system, which is used to power the laser galvanometer system, and the laser galvanometer power supply system includes: a power input module, including a first voltage DC power supply and a second voltage DC power supply; a plurality of cascaded step-down modules, connected to the power input module to access the first voltage DC power supply; a plurality of voltage stabilizing modules, connected to the power input module to access the second voltage DC power supply; a power output module, connected to the step-down module and the voltage stabilizing module; wherein the cascaded plurality of step-down modules are used to perform graded step-down on the first voltage DC power supply to obtain a plurality of step-down voltage DCs, and the voltage stabilizing module is used to stabilize the second voltage DC power supply to obtain a stabilized voltage DC; the power output module is used to output the plurality of step-down voltage DCs and the stabilized voltage DCs to a plurality of components in the laser galvanometer system for powering.

[0006] In some embodiments, the first voltage DC power supply is a +12V power supply, and the second voltage DC power supply is a -12V power supply.

[0007] In some embodiments, the power input module is also connected to an operational amplifier component in the laser galvanometer system, and supplies power to the operational amplifier component through the +12V power supply and the -12V power supply.

[0008] In some embodiments, the cascaded multiple buck modules include a DC power module, a 5V power LDO module, a first 3.3V power LDO module, a second 3.3V power LDO module, a 2.5V power LDO module and a 1.2V power LDO module.

[0009] In some embodiments, the input ends of the DC power supply module and the 5V power supply LDO module are connected to the +12V power supply, the DC power supply module is used to output +5V power supply, and the 5V power supply LDO module is used to output +5V power supply to power the DAC component in the laser galvanometer system.

[0010] In some embodiments, the first 3.3V power supply LDO module, the 2.5V power supply LDO module, the 5V isolated power supply module, the driving / receiving component in the laser galvanometer system, and the input end of the CAN component are connected to the output end of the DC power supply module, and the 2.5V power supply LDO module is used to power the FPGA component in the laser galvanometer system.

[0011] In some embodiments, the input end of the second 3.3V power supply LDO module is connected to the 5V isolated power supply module, and the output end of the second 3.3V power supply LDO module is connected to the Ethernet component, optocoupler component, MCU component, isolated CAN component, encryption component, MCU-FLASH component and digital isolation component in the laser galvanometer system.

[0012] In some embodiments, the output end of the first 3.3V power supply LDO module is connected to the 1.2V power supply LDO module and the parallel-to-serial component, serial-to-parallel component, FPGA clock component, FPGA memory component and digital isolation component in the laser galvanometer system, and the output end of the 1.2V power supply LDO module is connected to the FPGA component.

[0013] In some embodiments, the voltage stabilization module includes a linear voltage stabilization module, and the linear voltage stabilization module is used to output a -5V power supply to power the optical coupler component in the laser galvanometer system.

[0014] In a second aspect, in order to achieve the above-mentioned purpose, an embodiment of the present application proposes a laser galvanometer power supply, including a laser galvanometer power supply system as described in any one of the first aspects.

[0015] The laser galvanometer power supply system proposed in the embodiment of the present application has the following beneficial effects: the power input module proposed in the present application includes two DC power supplies with different voltage levels, a first voltage DC power supply and a second voltage DC power supply; further, after the multiple cascaded step-down modules are connected to the power input module, the input voltage of the first voltage DC power supply can be gradually reduced by cascading to generate a series of different levels of stepped-down voltage DC power, so that the system of the present application can flexibly adjust the output voltage according to specific application scenarios to adapt to the specific needs of different components inside the laser galvanometer system; further, several voltage stabilizing modules are also connected to the power input module to process the second voltage DC power supply. DC power supply, and ensure the stability of its output voltage, keep the output voltage constant when the input voltage fluctuates, so as to adapt to the power supply needs of components in the laser galvanometer system that are sensitive to voltage fluctuations; further, the power output module is used to integrate all DC power obtained from the step-down module and the voltage stabilization module, and transmit the response DC power to each component in the laser galvanometer system respectively, to ensure that each component can receive a voltage suitable for work, thereby improving the efficiency and reliability of the entire system; in summary, this application introduces multiple voltage inputs and combines the step-down and voltage stabilization functions to provide more reliable and flexible voltage support for the laser galvanometer system, thereby achieving safe and stable power supply for the galvanometer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the laser galvanometer power supply system provided in an embodiment of the present application;

[0017] Figure 2 This is another structural schematic diagram of the laser galvanometer power supply system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0019] It should be noted that although the device schematics illustrate functional module divisions and the flowcharts illustrate logical sequences, in certain circumstances, the steps shown or described may be performed in a sequence that differs from the module divisions in the device or the sequence in the flowcharts. The terms "first," "second," and so on, in the specification, claims, and drawings, are used to distinguish similar items and are not necessarily used to describe a specific sequence or precedence.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein are for the purpose of describing the embodiments of this application only and are not intended to limit this application.

[0021] In traditional laser galvanometer power supply systems, problems often occur due to unstable voltage or a single voltage source that cannot meet the specific needs of different components in the system. For example, in the application scenario of a laser marking machine, the galvanometer requires a precise and stable power supply to ensure its efficient and smooth operation. However, in actual use, factors such as power supply fluctuations, electromagnetic interference, and temperature changes will cause the output voltage to be unstable, thereby affecting the positioning accuracy and service life of the galvanometer. In addition, the laser galvanometer system usually contains multiple components that require different voltage levels for power supply, such as control circuits, motor drivers, etc. If only a single voltage source is used, a complex conversion circuit is required to adapt to these different requirements, which not only increases the complexity and cost of the system, but also introduces additional noise and loss, further affecting the performance of the system.

[0022] To this end, the main purpose of the embodiments of the present application is to propose a laser galvanometer power supply system and a laser galvanometer power supply, which can provide reliable and flexible voltage support for each component in the laser galvanometer system by cascading multiple step-down modules and connecting voltage stabilizing modules in a modular manner, thereby achieving safe and stable power supply for the galvanometer.

[0023] The following is a detailed description with reference to the accompanying drawings.

[0024] Please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of the laser galvanometer power supply system provided in an embodiment of the present application; Figure 2 It is another structural schematic diagram of the laser galvanometer power supply system provided by an embodiment of the present application; on the first aspect, in order to achieve the above-mentioned purpose, an embodiment of the present application proposes a laser galvanometer power supply system, which is used to power the laser galvanometer system, and the laser galvanometer power supply system includes: a power input module, including a first voltage DC power supply and a second voltage DC power supply; a plurality of cascaded step-down modules, connected to the power input module to access the first voltage DC power supply; a plurality of voltage stabilizing modules, connected to the power input module to access the second voltage DC power supply; a power output module, connected to the step-down module and the voltage stabilizing module; wherein the cascaded plurality of step-down modules are used to perform graded step-down on the first voltage DC power supply to obtain a plurality of step-down voltage DCs, and the voltage stabilizing module is used to stabilize the second voltage DC power supply to obtain a stabilizing voltage DC; the power output module is used to output a plurality of step-down voltage DCs and stabilizing voltage DCs to a plurality of components in the laser galvanometer system for powering.

[0025] It can be understood that the power input module proposed in the present application includes two DC power supplies with different voltage levels, a first voltage DC power supply and a second voltage DC power supply; further, after the cascaded multiple step-down modules are connected to the power input module, they can be used for the first voltage DC power supply. The input voltage can be gradually reduced by cascading to generate a series of different levels of stepped-down voltage DC power, so that the system of the present application can flexibly adjust the output voltage according to specific application scenarios to adapt to the specific needs of different components inside the laser galvanometer system; further, several voltage stabilizing modules are also connected to the power input module to process the second voltage DC power supply and ensure its output Voltage stability, maintaining a constant output voltage when the input voltage fluctuates, to meet the power supply needs of components inside the laser galvanometer system that are sensitive to voltage fluctuations; further, the power output module is used to integrate all DC power obtained from the step-down module and the voltage stabilization module, and transmit the response DC power to each component in the laser galvanometer system respectively, to ensure that each component can receive a voltage suitable for work, thereby improving the efficiency and reliability of the entire system; in summary, this application introduces multiple voltage inputs and combines the step-down and voltage stabilization functions to provide more reliable and flexible voltage support for the laser galvanometer system, thereby achieving safe and stable power supply for the galvanometer.

[0026] In some embodiments, the first voltage DC power supply is a positive voltage power supply, which is used to provide necessary power support for high-power components in the system. The step-down module is connected to the first voltage DC power supply of the power input module and is arranged in a cascade manner. Each step-down module is used to gradually reduce the input voltage to a predetermined value to meet the needs of different components. It can be understood that through the above method, the system can generate multiple voltage outputs of different levels according to actual needs, and the cascade step-down design can effectively manage the energy loss during the high voltage conversion process and reduce the thermal effects caused by a single large-scale voltage conversion.

[0027] In some embodiments, the second voltage DC power supply is a negative voltage power supply, and the voltage stabilizing module is connected to the second voltage DC power supply of the power input module. Its function is to ensure the stability of the output voltage. Even if the input voltage fluctuates, the output voltage can be kept constant, thereby providing a stable voltage environment for sensitive electronic components; the power output module receives output signals from the step-down module and the voltage stabilizing module, and distributes these signals to the corresponding components according to the voltage requirements of different components in the laser galvanometer system.

[0028] In some embodiments, the first voltage DC power supply is a +12V power supply, and the second voltage DC power supply is a -12V power supply. It can be understood that in this embodiment, the first voltage DC power supply is set to a +12V power supply, and the second voltage DC power supply is set to a -12V power supply, so that the present application can be applicable to bipolar signal processing, meeting the needs of op amps and other analog circuits to process positive and negative bipolar signals. The use of +12V and -12V power supplies can provide these circuits with sufficient dynamic range to process the full signal range from negative to positive.

[0029] In some embodiments, a dual-supply configuration can reduce the impact of common-mode noise compared to a single-supply configuration.

[0030] In some embodiments, the power input module is also connected to the op amp component in the laser galvanometer system and powers the op amp component through a +12V power supply and a -12V power supply. The power input module not only provides the voltage required by other components, but also directly connects to the op amp component in the laser galvanometer system. This means that the op amp component can obtain +12V and -12V power directly from the power input module without going through additional voltage conversion or regulation steps. The op amp component can directly use +12V as the positive power supply voltage and -12V as the negative power supply voltage, which simplifies the power distribution structure and reduces the loss caused by additional conversion. It can be understood that direct power supply reduces the intermediate links, reduces energy loss, improves the overall efficiency of the system, ensures that the op amp component can operate under optimal conditions, and thus improves the reliability and performance of the entire system.

[0031] In some embodiments, the cascaded multiple buck modules include a DC power module, a 5V power LDO module, a first 3.3V power LDO module, a second 3.3V power LDO module, a 2.5V power LDO module and a 1.2V power LDO module.

[0032] In some embodiments, the input ends of the DC power module and the 5V power LDO module are connected to a +12V power supply, the DC power module is used to output a +5V power supply, and the 5V power LDO module is used to output a +5V power supply to power the DAC component in the laser galvanometer system.

[0033] Among them, the input end of the DC power supply module is connected to the +12V power supply, and its function is to step down the voltage from +12V to +5V, providing the required voltage level for certain components in the system; the 5V power supply LDO module is the same as the DC power supply module. The input end of the 5V power supply LDO module is also connected to the +12V power supply, which is used to provide +5V power and specifically power the DAC (digital-to-analog converter) component in the laser galvanometer system. LDO (low-dropout linear regulator) is a voltage regulator that can stabilize the output voltage and has very low noise characteristics. It is suitable for powering noise-sensitive circuits such as DAC.

[0034] In some embodiments, the multiple LDO modules in the present application generate 3.3V, 2.5V and 1.2V voltage outputs respectively to meet the needs of different components in the system, wherein the 3.3V power supply LDO module is used to provide two independent 3.3V power supply outputs, respectively referred to as the first 3.3V power supply LDO module and the second 3.3V power supply LDO module, and these two modules are used to provide power for different parts or different types of circuits; the 2.5V power supply LDO module generates a stable power supply of 2.5V for certain low-voltage requirement circuits; the 1.2V power supply LDO module provides a 1.2V power supply output, which is typically used to power modern processors or other small integrated circuits with voltage requirements.

[0035] It can be understood that through the above design, the laser galvanometer power supply system can provide the various voltage levels required for different components in the system. Each LDO module is optimized for specific voltage requirements, thereby ensuring that each component can operate at its appropriate operating voltage.

[0036] In some embodiments, the input ends of the first 3.3V power supply LDO module, the 2.5V power supply LDO module, the 5V isolated power supply module, the driving / receiving component in the laser galvanometer system, and the CAN component are connected to the output end of the DC power supply module, and the 2.5V power supply LDO module is used to power the FPGA component in the laser galvanometer system.

[0037] In some embodiments, the input end of the second 3.3V power supply LDO module is connected to the 5V isolated power supply module, and the output end of the second 3.3V power supply LDO module is connected to the Ethernet component, optocoupler component, MCU component, isolated CAN component, encryption component, MCU-FLASH component and digital isolation component in the laser galvanometer system.

[0038] Among them, the input end of the first 3.3V power supply LDO module is connected to the output end of the DC power supply module, which means that it receives the +5V power supply from the DC power supply module. The first 3.3V power supply LDO module is used to step down the +5V power supply to 3.3V to provide the required voltage for certain components in the laser galvanometer system.

[0039] The input of the 2.5V power LDO module is also connected to the output of the DC power module, receiving a +5V power supply. This module is used to step down the +5V power supply to 2.5V, specifically to power the FPGA component in the laser galvanometer system. The FPGA component may require a stable low-voltage power supply to perform its complex programming and logic operations.

[0040] The 5V isolated power supply module is connected to the output end of the DC power supply module, that is, the +5V power supply, to provide electrical isolation to prevent mutual interference between current loops, thereby protecting sensitive circuits from damage.

[0041] The input ends of the drive / receiver component and the CAN component are connected to the output end of the DC power module. The drive / receiver component is used to control the position feedback system of the galvanometer motor, and the CAN component is used for data communication for real-time control.

[0042] The input end of the second 3.3V power supply LDO module is connected to the 5V isolated power supply module. The second 3.3V power supply LDO module is used to step down the isolated 5V power supply to 3.3V, which is used to power multiple components in the laser galvanometer system, including Ethernet components, optocoupler components, MCU components, isolated CAN components, encryption components, MCU-FLASH components and digital isolation components.

[0043] In some embodiments, the output end of the first 3.3V power supply LDO module is connected to the 1.2V power supply LDO module and the parallel-to-serial component, serial-to-parallel component, FPGA clock component, FPGA memory component and digital isolation component in the laser galvanometer system, and the output end of the 1.2V power supply LDO module is connected to the FPGA component.

[0044] The input end of the first 3.3V power supply LDO module is connected to the output end of the DC power supply module to receive the +5V power supply. The first 3.3V power supply LDO module is used to step down the +5V power supply to 3.3V, providing a stable power supply for the 1.2V power supply LDO module and some components in the laser galvanometer system. The output end of the first 3.3V power supply LDO module is connected to the 1.2V power supply LDO module, which further steps down the 3.3V power supply to 1.2V to power the FPGA component. The parallel-to-serial component and the serial-to-parallel component are used to convert between parallel data and serial data and are directly powered by the first 3.3V power supply LDO module. The clock component and FPGA memory component are powered by the first 3.3V power supply LDO module and are used to process the data flow and clock signal synchronization within the FPGA; the digital isolation component is used to provide electrical isolation between different circuits to prevent noise interference or current loop problems, and is also powered by the first 3.3V power supply LDO module; the input end of the 1.2V power supply LDO module is connected to the output end of the first 3.3V power supply LDO module, receives 3.3V power, and further reduces the 3.3V power supply to 1.2V, providing the required low-voltage power supply for the FPGA component to meet the FPGA component's need for low voltage to perform its complex logical computing tasks.

[0045] In some embodiments, the voltage stabilizing module includes a linear voltage stabilizing module, which is used to output a -5V power supply to power the optocoupler component in the laser galvanometer system. The linear voltage stabilizing module in the voltage stabilizing module is used to output a -5V power supply. In this embodiment, the -5V power supply output by the linear voltage stabilizing module is specifically used to power the optocoupler component in the laser galvanometer system. The optocoupler component is used for electrical isolation and can transmit electrical signals from one side to the other without direct connection, thereby preventing mutual interference between current loops.

[0046] It can be understood that through the above-mentioned multi-level voltage conversion and isolation design, this system not only ensures that each component can obtain a suitable and stable voltage, but also effectively prevents potential electrical interference through isolation measures, enhances the stability and safety of the system, and can support components with various different voltage requirements, such as FPGA, MCU, Ethernet interface, etc., to ensure that they operate under their respective optimal working conditions, thereby improving the performance and reliability of the entire laser galvanometer system.

[0047] In some embodiments, the FPGA component connected to the output end of the 1.2V power supply LDO module and the FPGA component connected to the output end of the 1.2V power supply LDO module can be the same component or different components; the optocoupler component connected to the linear voltage regulator module and the optocoupler component connected to the output end of the second 3.3V power supply LDO module are the same component.

[0048] In some embodiments, the output module is a voltage output port correspondingly connected to each component.

[0049] On the second aspect, in order to achieve the above-mentioned purpose, the embodiment of the present application proposes a laser galvanometer power supply, including a laser galvanometer power supply system as any one of the items in the first aspect. It is worth noting that since the laser galvanometer power supply of the embodiment of the present application has the laser galvanometer power supply system of the above-mentioned embodiment, the specific implementation manner and technical effects of the laser galvanometer power supply of the embodiment of the present application can refer to the specific implementation manner and technical effects of the laser galvanometer power supply system of any of the above-mentioned embodiments.

[0050] In the several embodiments provided in this application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0051] The preferred embodiments of the present invention are described above with reference to the accompanying drawings, but are not intended to limit the scope of the present invention. Any modifications, equivalent substitutions, and improvements made by those skilled in the art without departing from the scope and essence of the present invention should be within the scope of the present invention.

Claims

1. A laser galvanometer power supply system, characterized in that: The laser galvanometer power supply system is used to power the laser galvanometer system, and the laser galvanometer power supply system includes: A power input module, comprising a first voltage DC power supply and a second voltage DC power supply; A plurality of cascaded step-down modules are connected to the power input module to access the first voltage DC power supply; a plurality of voltage stabilizing modules connected to the power input module to access the second voltage DC power supply; A power output module connected to the voltage step-down module and the voltage stabilizing module; Among them, the cascaded multiple step-down modules are used to perform graded step-down on the first voltage DC power supply to obtain multiple step-down voltage DCs, and the voltage stabilizing module is used to stabilize the second voltage DC power supply to obtain stabilized voltage DC; the power output module is used to output the multiple step-down voltage DCs and the stabilized voltage DC to multiple components in the laser galvanometer system respectively for power supply.

2. The laser galvanometer power supply system according to claim 1, characterized in that: The first voltage DC power supply is a +12V power supply, and the second voltage DC power supply is a -12V power supply.

3. The laser galvanometer power supply system according to claim 2, characterized in that: The power input module is also connected to the operational amplifier component in the laser galvanometer system, and supplies power to the operational amplifier component through the +12V power supply and the -12V power supply.

4. The laser galvanometer power supply system according to claim 2, characterized in that: The cascaded multiple step-down modules include a DC power module, a 5V power LDO module, a first 3.3V power LDO module, a second 3.3V power LDO module, a 2.5V power LDO module and a 1.2V power LDO module.

5. The laser galvanometer power supply system according to claim 4, characterized in that: The input ends of the DC power supply module and the 5V power supply LDO module are connected to the +12V power supply, the DC power supply module is used to output +5V power supply, and the 5V power supply LDO module is used to output +5V power supply to power the DAC component in the laser galvanometer system.

6. The laser galvanometer power supply system according to claim 5, characterized in that: The first 3.3V power supply LDO module, the 2.5V power supply LDO module, the 5V isolated power supply module, the driving / receiving component in the laser galvanometer system, and the input end of the CAN component are connected to the output end of the DC power supply module, and the 2.5V power supply LDO module is used to power the FPGA component in the laser galvanometer system.

7. The laser galvanometer power supply system according to claim 6, characterized in that: The input end of the second 3.3V power supply LDO module is connected to the 5V isolated power supply module, and the output end of the second 3.3V power supply LDO module is connected to the Ethernet component, optocoupler component, MCU component, isolated CAN component, encryption component, MCU-FLASH component and digital isolation component in the laser galvanometer system.

8. The laser galvanometer power supply system according to claim 6, characterized in that: The output end of the first 3.3V power supply LDO module is connected to the 1.2V power supply LDO module and the parallel-to-serial component, serial-to-parallel component, FPGA clock component, FPGA memory component and digital isolation component in the laser galvanometer system, and the output end of the 1.2V power supply LDO module is connected to the FPGA component.

9. The laser galvanometer power supply system according to claim 2, characterized in that: The voltage stabilizing module includes a linear voltage stabilizing module, and the linear voltage stabilizing module is used to output a -5V power supply to power the optical coupler component in the laser galvanometer system.

10. A laser galvanometer power supply, characterized in that: The invention comprises a laser galvanometer power supply system as claimed in any one of claims 1 to 9.

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