Laser power supply with UPS dual power supply
By using the UPS dual power supply system's activation parameter setting module and preliminary data integration module, the problem of energy mutation during laser power switching was solved, achieving stable switching and constant power output of the laser power supply.
Patent Information
- Application Number
- CN202510989193.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-17
- Publication Date
- 2025-10-31
AI Technical Summary
Existing lasers are prone to sudden changes in laser pump energy and brief drops in load voltage during power switching, resulting in poor stability.
The system employs a dual UPS power supply system. By enabling the parameter setting module to capture transient abnormal parameters, the preliminary data integration module to determine anomalies, and the sub-item debugging module to collect electrical performance parameters a second time, the constant power error caused by temperature is corrected. Finally, the power supply is switched at the UPS power supply end to achieve a low-error constant power state.
This effectively avoids sudden changes in laser pump energy during power switching, ensuring the stability and constant power output of the laser during power switching.
Smart Images
Figure CN120879903A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of laser technology, specifically a laser power supply with dual UPS power supply. Background Technology
[0002] The power supply is one of the core components of a laser, responsible for converting the input electrical energy into specific forms and parameters required for the laser to operate, such as voltage, current, waveform, frequency, and stability. The performance and stability of the power supply directly determine the output performance and lifespan of the laser.
[0003] To adapt to the needs of the operating environment, existing lasers are usually equipped with dual power supplies. The power switching is mainly carried out through a linear modulator. Although this method can keep the laser power output linear before debugging, the instantaneous voltage / current generated during switching is still prone to temporary drops, which can cause sudden changes in laser pump energy. In addition, the instantaneous voltage values of the two power supplies are not completely consistent, which may cause a brief but significant drop in the voltage at the load end. Therefore, the stability is not ideal. Summary of the Invention
[0004] To address the problems in the prior art, the present invention provides a laser power supply with dual UPS power supply.
[0005] The technical solution adopted by this invention to solve its technical problem is: a laser power supply with dual UPS power supply, including a control module, a main external power supply interface, and a secondary external power supply interface. The main external power supply interface is connected to a linear modulation module, and the secondary external power supply interface is connected to an activation parameter formulation module. The activation parameter formulation module is signal-connected to a preliminary data integration module, and the signal reading end of the preliminary data integration module is signal-connected to a sub-item debugging module. The signal output end of the sub-item debugging module is provided with a UPS power supply end. The activation parameter formulation module is used to receive the switching signal output by the external power supply interface and capture transient abnormal parameters in the synchronous switching signal. The preliminary data integration module is used to integrate the transient data unidirectionally acquired by the activation parameter formulation module and perform anomaly judgment. The sub-item debugging module collects the electrical performance parameters after switching a second time based on the judgment signal of the preliminary data integration module.
[0006] Preferably, the activation parameter setting module includes a static transfer switch, a synchronization controller, a high-frequency current transformer, and a digital storage oscilloscope. The static transfer switch is signal-connected to the secondary external power supply interface. The synchronization controller, the high-frequency current transformer, and the digital storage oscilloscope are all electrically connected to the static transfer switch. The synchronization controller is signal-connected to the high-frequency current transformer and the digital storage oscilloscope.
[0007] Preferably, the signal transmission end of the digital storage oscilloscope is connected to the signal of the preliminary data integration module. After the static transfer switch is turned on by the secondary external power supply interface, the synchronization controller synchronously enables the high-frequency current transformer, the digital storage oscilloscope, and the preliminary data integration module, while the synchronization controller controls the preliminary data integration module and the sub-item debugging module to be in a disconnected state.
[0008] Preferably, the sub-item debugging module includes a constant power monitoring module, a temperature error feedback module, and a debugging signal output module. The signal receiving end of the constant power monitoring module is connected to the previous data integration module, the signal receiving end of the temperature error feedback module is connected to the constant power monitoring module, and the signal output end of the temperature error feedback module is connected to the constant power monitoring module.
[0009] Preferably, after the peak value of the electrical performance parameter determined by the preliminary data integration module stabilizes, it is used to send a start signal to the constant power monitoring module. The constant power monitoring module is used to monitor the constant power of the electrical performance under the current laser operating state, and corrects the constant power error caused by temperature through the temperature error feedback module. Finally, after the error value is compared by the debugging signal output module, it is output to the UPS power supply terminal, and finally the power supply is switched through the UPS power supply terminal.
[0010] Preferably, the preliminary data integration module includes a data processing unit, a read / write memory, and a wireless signal transmitter. The data processing unit is signal-connected to the high-frequency current transformer and is used to process and integrate the transient data acquired unidirectionally by the high-frequency current transformer. The integrated transient data is stored in the read / write memory. The digital storage oscilloscope is connected to the read / write memory and is used to simulate the waveform of the integrated transient data in the read / write memory.
[0011] Preferably, the main external power supply interface is connected to a linear modulation module, and the linear modulation module is connected to the laser signal.
[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: By setting an enable parameter formulation module to receive the switching signal output from the external power supply interface and capture transient abnormal parameters in the synchronous switching signal, the preliminary data integration module integrates the transient data unidirectionally acquired by the enable parameter formulation module and performs anomaly judgment. Then, the sub-item debugging module collects the electrical performance parameters after switching a second time based on the judgment signal of the preliminary data integration module. Finally, after correcting the constant power error caused by temperature, the error value is compared by the debugging signal output module. After the error value is lower than the set value, the switching command is output to the UPS power supply end. Finally, the power supply end is switched through the UPS power supply end, so that when the main external power supply interface is switched to the UPS power supply end of the secondary external power supply interface, the transition is achieved in a low error constant power state, avoiding sudden changes in laser pump energy during power switching. Attached Figure Description
[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0014] Figure 1 This is a structural composition diagram of the present invention;
[0015] Figure 2 A structural composition diagram of existing technology;
[0016] In the diagram: 1. Component debugging module; 11. Constant power monitoring module; 12. Temperature error feedback module; 13. Debugging signal output module; 2. Enable parameter setting module; 21. Static transfer switch; 22. Synchronous controller; 23. High-frequency current transformer; 24. Digital storage oscilloscope; 3. Preliminary data integration module; 4. UPS power supply. Detailed Implementation
[0017] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.
[0018] like Figures 1-2As shown, the laser power supply with dual UPS power supply of the present invention includes a control module, a main external power supply interface, and a secondary external power supply interface. The main external power supply interface is connected to a linear modulation module, and the secondary external power supply interface is connected to an enable parameter formulation module 2. The enable parameter formulation module 2 is signal-connected to a preliminary data integration module 3. The signal reading end of the preliminary data integration module 3 is signal-connected to a sub-item debugging module 1. The signal output end of the sub-item debugging module 1 is provided with a UPS power supply terminal 4. The enable parameter formulation module 2 is used to receive the switching signal output by the external power supply interface and capture transient abnormal parameters in the synchronous switching signal. The preliminary data integration module 3 is used to integrate the transient data unidirectionally acquired by the enable parameter formulation module 2 and perform anomaly judgment. The sub-item debugging module 1 collects the electrical performance parameters after switching a second time based on the judgment signal of the preliminary data integration module 3.
[0019] In this embodiment, to address the problem that in the prior art, when switching power via a linear modulator, although the laser power can be kept linearly output before debugging, the instantaneous voltage / current generated during switching is still prone to temporary drops, leading to sudden changes in laser pump energy, and the instantaneous voltage values of the two power supplies are not completely consistent, which may cause a brief but significant drop in the load-side voltage, this invention proposes a laser power supply with dual UPS power supply. The above technical problems are solved by setting up a sub-item debugging module 1, enabling a parameter setting module 2, and a preliminary data integration module 3.
[0020] In an optional embodiment of this example, the parameter setting module 2 includes a static transfer switch 21, a synchronization controller 22, a high-frequency current transformer 23, and a digital storage oscilloscope 24. The static transfer switch 21 is signal-connected to the secondary external power supply interface. The synchronization controller 22, the high-frequency current transformer 23, and the digital storage oscilloscope 24 are all electrically connected to the static transfer switch 21. The synchronization controller 22 is signal-connected to the high-frequency current transformer 23 and the digital storage oscilloscope 24.
[0021] In one optional embodiment of this example, the signal transmission end of the digital storage oscilloscope 24 is connected to the signal of the pre-data integration module 3. After the static switch 21 is turned on by the power supply interface of the secondary external terminal, the synchronous controller 22 synchronously enables the high-frequency current transformer 23, the digital storage oscilloscope 24 and the pre-data integration module 3, while the synchronous controller 22 controls the pre-data integration module 3 and the sub-item debugging module 1 to be in a disconnected state.
[0022] In this embodiment, the static transfer switch 21 is configured to disconnect the electrical connection between the secondary external power supply interface and the UPS power supply terminal 4 when the secondary external power supply interface is initially turned on. That is, when the secondary external power supply interface is initially turned on after switching, the static transfer switch 21 is in a disconnected state with the UPS power supply terminal 4 and in a connected state with the synchronous controller 22. In the current state, the synchronous controller 22 sends a start signal to the high-frequency current transformer 23 and the digital storage oscilloscope 24. The high-frequency current transformer 23 is used to detect the laser radio frequency current, and the digital storage oscilloscope 24... Used to measure the voltage across the switch contacts, and after the high-frequency current transformer 23 and the digital storage oscilloscope 24 acquire the above parameters, the transient data (i.e., radio frequency current) acquired unidirectionally by the high-frequency current transformer 23 and the switch contact voltage acquired by the digital storage oscilloscope 24 are processed and integrated by the pre-data integration module 3. Then, the integrated transient data is stored in the read-write memory and finally fed back to the digital storage oscilloscope 24. The digital storage oscilloscope 24 simulates the waveform of the integrated transient data in the read-write memory for identification during manual inspection.
[0023] In one optional embodiment of this example, the sub-item debugging module 1 includes a constant power monitoring module 11, a temperature error feedback module 12, and a debugging signal output module 13. The signal receiving end of the constant power monitoring module 11 is connected to the previous data integration module 3, the signal receiving end of the temperature error feedback module 12 is connected to the constant power monitoring module 11, and the signal output end of the temperature error feedback module 12 is connected to the constant power monitoring module 11.
[0024] In this embodiment, the constant power monitoring module 11 includes a current transformer and a voltage transformer. A measurement point located at the laser output terminal detects the current and voltage. Since the capacitance value in the capacitive voltage transformer changes with temperature—that is, when the temperature rises, the capacitance value decreases, leading to a lower measured value, and when the temperature falls, the capacitance value increases, leading to a higher measured value—this directly affects the measurement accuracy of the constant power monitoring module 11. Therefore, this invention also includes a temperature error feedback module 12. The temperature error feedback module 12 is positioned at the laser output terminal to collect the ambient temperature. By monitoring and measuring the ambient temperature, the influence ratio of the current temperature on the voltage value is determined. This influence ratio is used to correct the monitoring parameters of the constant power monitoring module 11. The voltage temperature coefficient is calculated, which is a known technique and will not be elaborated further here.
[0025] In one optional embodiment of this example, after the peak value of the electrical performance parameter determined by the preliminary data integration module 3 stabilizes, it is used to send a start signal to the constant power monitoring module 11. The constant power monitoring module 11 is used to monitor the constant power of the electrical performance under the current laser operating state, and corrects the constant power error caused by temperature through the temperature error feedback module 12. Finally, after the error value is compared by the debugging signal output module 13, it is output to the UPS power supply terminal 4, and finally the UPS power supply terminal 4 sends an enable command to the UPS power supply terminal.
[0026] In an optional embodiment of this example, the preliminary data integration module 3 includes a data processing unit, a read / write memory, and a wireless signal transmitter. The data processing unit is connected to the high-frequency current transformer 23 and is used to process and integrate the transient data acquired unidirectionally by the high-frequency current transformer 23. The integrated transient data is stored in the read / write memory. The digital storage oscilloscope 24 is connected to the read / write memory and is used to simulate the waveform of the integrated transient data in the read / write memory.
[0027] In one optional embodiment of this example, the main external power supply interface is connected to a linear modulation module, and the linear modulation module is connected to the laser signal.
[0028] In this embodiment, when the main external power supply interface is selected for external power supply, the linear modulation module directly modulates the application, and the parameter setting module 2, the preliminary data integration module 3, and the UPS power supply terminal 4 are all in a shutdown state. When the secondary external power supply interface is selected for power supply through the control module, the parameter setting module 2 and the preliminary data integration module 3 are simultaneously activated. At this time, the parameter setting module 2 receives the switching signal output by the external power supply interface and captures the transient abnormal parameters in the synchronous switching signal. The preliminary data integration module 3 integrates the transient data unidirectionally acquired by the parameter setting module 2. The sub-item debugging module 1 collects the electrical performance parameters after switching for the second time based on the judgment signal of the preliminary data integration module 3. Finally, after correcting the constant power error caused by temperature, the error value is compared by the debugging signal output module 13. After the error value is lower than the set value, the switching command is output to the UPS power supply terminal 4. Finally, the power supply terminal is switched through the UPS power supply terminal 4, so that when the main external power supply interface is switched to the UPS power supply terminal 4 of the secondary external power supply interface, the transition is achieved in a low error constant power state, avoiding sudden changes in laser pump energy during power switching.
[0029] The usage process of this invention includes the following steps:
[0030] Step S1: When using the main external power supply interface for external power supply, the linear modulation module directly modulates the application and supplies power to the laser. In the current state, the parameter setting module 2, the preliminary data integration module 3, and the sub-item debugging module 1 are all in the off state.
[0031] Step S2: When the control module selects the secondary external power supply interface for power supply, the secondary external power supply interface is initially connected after switching, while the static transfer switch 21 is disconnected from the UPS power supply terminal 4 and connected to the synchronous controller 22. In the current state, the synchronous controller 22 sends a start signal to the high-frequency current transformer 23 and the digital storage oscilloscope 24.
[0032] Step S3: The high-frequency current transformer 23 is used to detect the laser radio frequency current, and the digital storage oscilloscope 24 is used to measure the voltage across the switch contacts. After the high-frequency current transformer 23 and the digital storage oscilloscope 24 acquire the above parameters, the transient data acquired unidirectionally by the high-frequency current transformer 23 and the switch contact voltage acquired by the digital storage oscilloscope 24 are processed and integrated by the preliminary data integration module 3.
[0033] Step S31: After the preliminary data integration module 3 completes the integration, the integrated transient data is stored in the read / write memory and finally fed back to the digital storage oscilloscope 24. The digital storage oscilloscope 24 simulates the waveform of the integrated transient data in the current read / write memory for identification during manual inspection.
[0034] Step S4: After the peak value of the electrical performance parameters determined by the preliminary data integration module 3 stabilizes, a start signal is sent to the constant power monitoring module 11. The constant power monitoring module 11 is used to monitor the constant power of the electrical performance under the current laser operating state, and corrects the constant power error caused by temperature through the temperature error feedback module 12. After the error value is lower than the set value, the switching command is output to the UPS power supply terminal 4. Finally, the power supply terminal is switched through the UPS power supply terminal 4, so that when the main external power supply interface is switched to the UPS power supply terminal of the secondary external power supply interface, the transition is achieved in a low error constant power state, avoiding sudden changes in laser pump energy during power switching.
[0035] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.
Claims
1. A laser power supply with dual UPS power supply, comprising a control module, a main external power supply interface, and a secondary external power supply interface, characterized in that: The main external power supply interface is connected to a linear modulation module, the secondary external power supply interface is connected to an activation parameter formulation module (2), the activation parameter formulation module (2) is signal-connected to a preliminary data integration module (3), the signal reading end of the preliminary data integration module (3) is signal-connected to a sub-item debugging module (1), the signal output end of the sub-item debugging module (1) is provided with a UPS power supply end (4), the activation parameter formulation module (2) is used to receive the switching signal output by the external power supply interface and capture the transient abnormal parameters in the synchronous switching signal, the preliminary data integration module (3) is used to integrate the transient data unidirectionally acquired by the activation parameter formulation module (2) and perform abnormal judgment, the sub-item debugging module (1) collects the electrical performance parameters after switching for the second time according to the judgment signal of the preliminary data integration module (3).
2. A laser power supply with dual UPS power supply according to claim 1, characterized in that: The activation parameter setting module (2) includes a static transfer switch (21), a synchronization controller (22), a high-frequency current transformer (23), and a digital storage oscilloscope (24). The static transfer switch (21) is connected to the external power supply interface. The synchronization controller (22), the high-frequency current transformer (23), and the digital storage oscilloscope (24) are all electrically connected to the static transfer switch (21). The synchronization controller (22) is connected to the high-frequency current transformer (23) and the digital storage oscilloscope (24).
3. A laser power supply with dual UPS power supply according to claim 2, characterized in that: The signal transmission end of the digital storage oscilloscope (24) is connected to the signal of the preliminary data integration module (3). After the static switch (21) is connected to the power supply interface of the secondary external terminal, the synchronous controller (22) synchronously enables the high-frequency current transformer (23), the digital storage oscilloscope (24) and the preliminary data integration module (3), while the synchronous controller (22) controls the preliminary data integration module (3) and the sub-item debugging module (1) to be in a disconnected state.
4. A laser power supply with dual UPS power supply according to claim 3, characterized in that: The sub-item debugging module (1) includes a constant power monitoring module (11), a temperature error feedback module (12), and a debugging signal output module (13). The signal receiving end of the constant power monitoring module (11) is connected to the pre-data integration module (3), the signal receiving end of the temperature error feedback module (12) is connected to the constant power monitoring module (11), and the signal output end of the temperature error feedback module (12) is connected to the constant power monitoring module (11).
5. A laser power supply with dual UPS power supply according to claim 4, characterized in that: After the peak value of the electrical performance parameters determined by the preliminary data integration module (3) stabilizes, it is used to send a start signal to the constant power monitoring module (11). The constant power monitoring module (11) is used to monitor the constant power of the electrical performance under the current laser operating state, and corrects the constant power error caused by temperature through the temperature error feedback module (12). Finally, after comparing the error value through the debugging signal output module (13), it outputs to the UPS power supply terminal (4), and finally switches the power supply through the UPS power supply terminal (4).
6. A laser power supply with dual UPS power supply according to claim 5, characterized in that: The preliminary data integration module (3) includes a data processing unit, a read / write memory, and a wireless signal transmitter. The data processing unit is signal-connected to the high-frequency current transformer (23) and is used to process and integrate the transient data acquired unidirectionally by the high-frequency current transformer (23). The integrated transient data is stored in the read / write memory. The digital storage oscilloscope (24) is connected to the read / write memory and is used to simulate the waveform of the integrated transient data in the read / write memory.
7. A laser power supply with dual UPS power supply according to claim 1, characterized in that: The main external power supply interface is connected to a linear modulation module, which is connected to the laser signal.