Laser circuit and laser

Abstract

The utility model provides a laser circuit and a laser. The laser circuit comprises a constant voltage module, a constant current driving module and a pumping source. One end of the constant-voltage module is used for input of a power grid, the other end of the constant-voltage module is connected with one end of the constant-current driving module, and the constant-voltage module is used for converting alternating-current voltage into direct-current voltage; the other end of the constant-current driving module is connected with the pumping source, and the constant-current driving module is used for driving the pumping source to work; the energy storage module is respectively connected with the constant voltage module and the constant current driving module; the direct current voltage output by the constant voltage module can supply power to the pumping source through the constant current driving module and can charge the energy storage module; the direct current voltage output by the energy storage module can supply power to the pumping source through the constant current driving module. According to the laser circuit, the power loss of the energy storage module during standby power supply can be reduced, and the endurance time of the energy storage module during power supply can be prolonged.

Description

Technical Field

[0001] This application belongs to the technical field of laser circuits. More specifically, it relates to a laser circuit and a laser. Background Art

[0002] Lasers are generally widely used in scenarios with high-quality processing requirements, such as the processing of precious metals and products with complex processes. During the laser processing, if the input voltage is unstable or abnormal, it will cause the operation of the laser to interrupt, and the interruption will lead to the scrapping of the processed material, causing damage to the user. Traditionally, a energy storage module such as a storage battery is generally added at the front end of the laser as an emergency power supply for the laser. However, when the current energy storage module supplies power to the laser, first, the power output by the energy storage module needs to pass through the module that converts the AC voltage to DC voltage when flowing through the internal power grid of the laser. However, power loss will occur when the power passes through the AC voltage to DC voltage conversion module. Therefore, it is necessary to increase the capacity of the energy storage module, increasing the cost. Summary of the Utility Model

[0003] The purpose of this application is to provide a laser circuit that can reduce the power loss when the energy storage module provides backup power.

[0004] The technical solution adopted in this application is a laser circuit, including: a constant voltage module, a constant current drive module, and a pump source;

[0005] One end of the constant voltage module is used for the input of the power grid, and the other end of the constant voltage module is connected to one end of the constant current drive module. The constant voltage module is used to convert the AC voltage of the power grid into a DC voltage;

[0006] The other end of the constant current drive module is connected to the pump source, and the constant current drive module is used to drive the pump source to work;

[0007] It further includes an energy storage module, and the energy storage module is respectively connected to the constant voltage module and the constant current drive module; wherein,

[0008] The constant voltage module outputs a DC voltage to the constant current drive module and can charge the energy storage module;

[0009] The energy storage module can output a DC voltage to the constant current drive module.

[0010] It can be seen that in the laser circuit of the present application, the energy storage module is arranged in the laser circuit, and the energy storage module is respectively connected to the constant voltage module and the constant current driving module in the laser. In this way, after the power grid is input into the laser and the alternating current voltage is converted into a direct current voltage by the constant voltage module, it can directly drive the pump source to work through the constant current driving module, or directly charge the energy storage module. There is no need to additionally set a constant voltage module in the energy storage module, and the direct current voltage output by the energy storage module does not need to flow through the constant voltage module for converting the power grid voltage into a direct current voltage, which can reduce the power loss of the output of the energy storage module. That is to say, in the above manner, integrating the energy storage module into the internal circuit of the laser can improve the portability of the laser, reduce the power loss when the energy storage module provides backup power, increase the battery life of the energy storage module, and thus increase the battery life of the laser when using the energy storage module for power supply.

[0011] Optionally, it further includes a control module, and the control module is respectively connected to the constant voltage module, the constant current driving module, the pump source and the energy storage module in a controlled manner.

[0012] Optionally, it further includes a first acquisition module and a second acquisition module. The first acquisition module is arranged between the control module and the constant voltage module, and the second acquisition module is arranged between the control module and the energy storage module.

[0013] Optionally, the constant voltage module includes an active rectification structure and a three-phase LLC resonant conversion structure. One end of the active rectification structure is used for the input of the power grid, the other end of the active rectification structure is connected to one end of the three-phase LLC resonant conversion structure, and the other end of the three-phase LLC resonant conversion structure is respectively connected to the energy storage module and the constant current driving module.

[0014] Optionally, the active rectification structure includes a first inductor, a second inductor, a third inductor, a first MOS transistor, a second MOS transistor, a third MOS transistor, a fourth MOS transistor, a fifth MOS transistor, a sixth MOS transistor, a first capacitor and a second capacitor; wherein,

[0015] The first end of the first MOS transistor is connected to the second end of the second MOS transistor, the first end of the third MOS transistor is connected to the second end of the fourth MOS transistor, the first end of the fifth MOS transistor is connected to the second end of the sixth MOS transistor, and the first end of the first capacitor is connected to the first end of the second capacitor;

[0016] The second ends of the first MOS transistor, the third MOS transistor and the fifth MOS transistor are connected to each other and are all connected to the second end of the first capacitor and the three-phase LLC resonant conversion structure;

[0017] The first ends of the second MOS transistor, the fourth MOS transistor, and the sixth MOS transistor are interconnected and are all connected to the second end of the second capacitor and the three-phase LLC resonant conversion structure;

[0018] One end of the first inductor is for grid input, and the other end of the first inductor is respectively connected to the first end of the first MOS transistor and the second end of the second MOS transistor;

[0019] One end of the second inductor is for grid input, and the other end of the second inductor is respectively connected to the first end of the third MOS transistor and the second end of the fourth MOS transistor;

[0020] One end of the third inductor is for grid input, and the other end of the third inductor is respectively connected to the first end of the fifth MOS transistor and the second end of the sixth MOS transistor; and

[0021] The three-phase LLC resonant conversion structure is also respectively connected to the first ends of the first capacitor and the second capacitor.

[0022] Optionally, the three-phase LLC resonant conversion structure includes a seventh MOS transistor, an eighth MOS transistor, a ninth MOS transistor, a tenth MOS transistor, an eleventh MOS transistor, a twelfth MOS transistor, a thirteenth MOS transistor, a fourteenth MOS transistor, a fifteenth MOS transistor, a fourth inductor, a fifth inductor, a sixth inductor, a first transformer, a second transformer, and a third transformer;

[0023] The first end of the seventh MOS transistor is connected to the second end of the eighth MOS transistor, the first end of the ninth MOS transistor is connected to the second end of the tenth MOS transistor, and the first end of the eleventh MOS transistor is connected to the second end of the twelfth MOS transistor;

[0024] The second ends of the seventh MOS transistor, the ninth MOS transistor, and the eleventh MOS transistor are interconnected and are all connected to the active rectification structure;

[0025] The first ends of the eighth MOS transistor, the tenth MOS transistor, and the twelfth MOS transistor are interconnected and are all connected to the active rectification structure;

[0026] The first end of the first transformer is connected to the active rectification structure through the fourth inductor, the first end of the second transformer is connected to the active rectification structure through the fifth inductor, and the first end of the third transformer is connected to the active rectification structure through the sixth inductor;

[0027] The second ends of the first transformer, the second transformer, and the third transformer are respectively connected to the active rectification structure;

[0028] The third terminal of the first transformer is connected to the first terminal of the constant current driving module and the first terminal of the energy storage module respectively through a thirteenth MOS transistor. The third terminal of the second transformer is connected to the first terminal of the constant current driving module and the first terminal of the energy storage module through a fourteenth MOS transistor. The third terminal of the third transformer is connected to the first terminal of the constant current driving module and the first terminal of the energy storage module through a fifteenth MOS transistor;

[0029] The fourth terminal of the first transformer is connected to the second terminal of the constant current driving module and the second terminal of the energy storage module respectively. The fourth terminal of the second transformer is connected to the second terminal of the constant current driving module and the second terminal of the energy storage module respectively. The fourth terminal of the third transformer is connected to the second terminal of the constant current driving module and the second terminal of the energy storage module respectively.

[0030] Optionally, the energy storage module adopts a storage battery or a super capacitor.

[0031] A laser includes a resonant cavity module, an optical output module, and the laser circuit described above. One end of the resonant cavity module is connected to the laser circuit, and the other end of the resonant cavity module is connected to the optical output module. Description of the Drawings

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0033] Figure 1 It is a structural block diagram of a laser circuit provided by an embodiment of the present application;

[0034] Figure 2 It is a circuit schematic diagram of a laser circuit provided by an embodiment of the present application.

[0035] Reference Signs:

[0036] 100, constant voltage module; 200, constant current driving module; 300, pump source; 400, energy storage module; 500, control module; 600, first acquisition module; 700, second acquisition module. Detailed Embodiments

[0037] In order to make the technical problems, technical solutions, and beneficial effects to be solved by the present application clearer, the following further details the present application in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0038] It should be noted that when a meta-structure is referred to as "fixed to" or "arranged on" another meta-structure, it can be directly on the other meta-structure or indirectly on the other meta-structure. When a meta-structure is referred to as "connected to" another meta-structure, it can be directly connected to the other meta-structure or indirectly connected to the other meta-structure.

[0039] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or meta-structure referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0040] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of some applications, "a plurality of" means two or more, unless otherwise specifically defined.

[0041] Refer to Figure 1 , the laser circuit includes a constant voltage module 100, a constant current drive module 200, a pump source 300, and an energy storage module 400. Among them, one end of the constant voltage module 100 is used for the input of the power grid, and the other end of the constant voltage module 100 is connected to one end of the constant current drive module 200. The constant voltage module 100 is used to convert the AC voltage of the power grid into a DC voltage. The other end of the constant current drive module 200 is connected to the pump source 300, and the constant current drive module 200 is used to drive the pump source 300 to work.

[0042] Specifically, after the AC voltage input from the power grid is converted into a DC voltage by the constant voltage module 100, the pump source 300 is driven to work through the constant current drive module 200.

[0043] Furthermore, the energy storage module 400 is respectively connected to the constant voltage module 100 and the constant current drive module 200.

[0044] Specifically, the DC voltage output by the constant voltage module 100 can supply power to the pump source 300 through the constant current drive module 200, and at the same time, the DC voltage output by the constant voltage module 100 can also charge the energy storage module 400.

[0045] In addition, the DC voltage output by the energy storage module 400 can also directly supply power to the pump source 300 through the constant current drive module 200.

[0046] It can be seen that in the laser circuit of the present application, the energy storage module 400 is arranged in the laser circuit, and the energy storage module 400 is respectively connected to the constant voltage module 100 and the constant current drive module 200 in the laser. In this way, after the power grid is input into the laser, the AC voltage is converted into DC voltage by the constant voltage module 100, and then it can directly drive the pump source 300 to work through the constant current drive module 200, or directly charge the energy storage module 400. There is no need to additionally set a constant voltage module 100 in the energy storage module 400, and the DC voltage output by the energy storage module 400 does not need to flow through the constant voltage module 100 for converting the power grid voltage into DC voltage, which can reduce the power loss of the output of the energy storage module 400. That is to say, in the above method, integrating the energy storage module 400 into the internal circuit of the laser can improve the portability of the laser, reduce the power loss during the standby power supply of the energy storage module 400, and increase the endurance time of the energy storage module 400, that is, also increase the endurance time of the laser when using the energy storage module 400 for power supply.

[0047] Furthermore, the laser circuit may further include a control module 500, and the control module 500 is respectively connected to the constant voltage module 100, the constant current drive module 200, the pump source 300 and the energy storage module 400 in a controlled manner. The control module 500 is respectively used to control the constant voltage module 100, the constant current drive module 200, the pump source 300 and the energy storage module 400 to work.

[0048] Even further, the laser circuit may further include a first acquisition module 600 and a second acquisition module 700. A first acquisition module 600 is arranged between the control module 500 and the constant voltage module 100, and a second acquisition module 700 is arranged between the control module 500 and the energy storage module 400.

[0049] Specifically, the control module 500 can monitor and acquire the state of the DC power supply output by the constant voltage module 100 in real time through the first acquisition module 600, such as judging whether the input voltage of the DC power supply is stable and whether there is any abnormality.

[0050] The control module 500 can monitor and acquire the state of the energy storage module 400 in real time through the second acquisition module 700, such as judging whether the stored energy of the energy storage module 400 is lower than the threshold. Among them, the energy storage module 400 can adopt a storage battery or a super capacitor, etc.

[0051] During use, if the voltage of the DC power supply output by the constant voltage module 100 monitored by the control module 500 through the first acquisition module 600 is unstable or abnormal, the control module 500 can control the energy storage module 400 to output DC power and then supply power to the pump source 300 through the constant current drive module 200.

[0052] If the stored energy in the energy storage module 400 monitored by the second acquisition module 700 is lower than the threshold value, the control module 500 can control the constant voltage module 100 to charge the energy storage module 400. In some embodiments, when the constant voltage module 100 charges the pump source 300, it can simultaneously charge the energy storage module 400.

[0053] Specifically, the constant voltage module 100 may include an active rectifier structure and a three-phase LLC resonant conversion structure. One end of the active rectifier structure is used for grid input, the other end of the active rectifier structure is connected to one end of the three-phase LLC resonant conversion structure, and the other end of the three-phase LLC resonant conversion structure is respectively connected to the energy storage module 400 and the constant current drive module 200. Among them, the active rectifier structure can achieve power factor correction (PFC) and boost constant voltage functions through SPWM or SVPWM modulation of the control module 500. The three-phase LLC resonant conversion structure is used to provide constant voltage for the constant current drive of the pump source 300 or to charge the energy storage module 400 according to a control instruction.

[0054] In some embodiments, referring to Figure 2 , the active rectifier structure may include a first inductor L1, a second inductor L2, a third inductor L3, a first MOS transistor Q1, a second MOS transistor Q2, a third MOS transistor Q3, a fourth MOS transistor Q4, a fifth MOS transistor Q5, a sixth MOS transistor Q6, a first capacitor C1, and a second capacitor C2.

[0055] The first end of the first MOS transistor Q1 is connected to the second end of the second MOS transistor Q2, the first end of the third MOS transistor Q3 is connected to the second end of the fourth MOS transistor Q4, the first end of the fifth MOS transistor Q5 is connected to the second end of the sixth MOS transistor Q6, and the first end of the first capacitor C1 is connected to the first end of the second capacitor C2.

[0056] The second ends of the first MOS transistor Q1, the third MOS transistor Q3, and the fifth MOS transistor Q5 are connected to each other and are all connected to the second end of the first capacitor C1 and the three-phase LLC resonant conversion structure.

[0057] The first ends of the second MOS transistor Q2, the fourth MOS transistor Q4, and the sixth MOS transistor Q6 are connected to each other and are all connected to the second end of the second capacitor C2 and the three-phase LLC resonant conversion structure.

[0058] One end of the first inductor L1 is used for grid input, and the other end of the first inductor L1 is respectively connected to the first end of the first MOS transistor Q1 and the second end of the second MOS transistor Q2.

[0059] One end of the second inductor L2 is used for grid input, and the other end of the second inductor L2 is respectively connected to the first end of the third MOS transistor Q3 and the second end of the fourth MOS transistor Q4.

[0060] One end of the third inductor L3 is for grid input, and the other end of the third inductor L3 is respectively connected to the first end of the fifth MOS transistor Q5 and the second end of the sixth MOS transistor Q6.

[0061] The three-phase LLC resonant conversion structure is also respectively connected to the first ends of the first capacitor C1 and the second capacitor C2.

[0062] In some embodiments, the first ends of the first MOS transistor Q1, the second MOS transistor Q2, the third MOS transistor Q3, the fourth MOS transistor Q4, the fifth MOS transistor Q5, and the sixth MOS transistor Q6 may be source electrodes respectively, and the second ends may be drain electrodes respectively. In addition, the first MOS transistor Q1, the second MOS transistor Q2, the third MOS transistor Q3, the fourth MOS transistor Q4, the fifth MOS transistor Q5, and the sixth MOS transistor Q6 may further include a third end, and the third end may be a gate electrode, and the third end can be used to connect to the control module 500.

[0063] Refer to Figure 2 The three-phase LLC resonant conversion structure may include a seventh MOS transistor Q7, an eighth MOS transistor Q8, a ninth MOS transistor Q9, a tenth MOS transistor Q10, an eleventh MOS transistor Q11, a twelfth MOS transistor Q12, a thirteenth MOS transistor Q13, a fourteenth MOS transistor Q14, a fifteenth MOS transistor Q15, a fourth inductor L4, a fifth inductor L5, a sixth inductor L6, a first transformer T1, a second transformer T2, and a third transformer T3.

[0064] The first end of the seventh MOS transistor Q7 is connected to the second end of the eighth MOS transistor Q8, the first end of the ninth MOS transistor Q9 is connected to the second end of the tenth MOS transistor Q10, and the first end of the eleventh MOS transistor Q11 is connected to the second end of the twelfth MOS transistor Q12.

[0065] The second ends of the seventh MOS transistor Q7, the ninth MOS transistor Q9, and the eleventh MOS transistor Q11 are connected to each other and are all connected to the active rectification structure.

[0066] The first ends of the eighth MOS transistor Q8, the tenth MOS transistor Q10, and the twelfth MOS transistor Q12 are connected to each other and are all connected to the active rectification structure.

[0067] The first end of the first transformer T1 is connected to the active rectification structure through the fourth inductor L4, the first end of the second transformer T2 is connected to the active rectification structure through the fifth inductor L5, and the first end of the third transformer T3 is connected to the active rectification structure through the sixth inductor L6.

[0068] The second ends of the first transformer T1, the second transformer T2, and the third transformer T3 are respectively connected to the active rectification structure.

[0069] The third terminal of the first transformer T1 is connected to the first terminal of the constant current driving module 200 and the first terminal of the energy storage module 400 respectively through the thirteenth MOS transistor Q13. The third terminal of the second transformer T2 is connected to the first terminal of the constant current driving module 200 and the first terminal of the energy storage module 400 through the fourteenth MOS transistor Q14. The third terminal of the third transformer T3 is connected to the first terminal of the constant current driving module 200 and the first terminal of the energy storage module 400 through the fifteenth MOS transistor Q15.

[0070] The fourth terminal of the first transformer T1 is connected to the second terminal of the constant current driving module 200 and the second terminal of the energy storage module 400 respectively. The fourth terminal of the second transformer T2 is connected to the second terminal of the constant current driving module 200 and the second terminal of the energy storage module 400 respectively. The fourth terminal of the third transformer T3 is connected to the second terminal of the constant current driving module 200 and the second terminal of the energy storage module 400 respectively.

[0071] Furthermore, the three-phase LLC resonant conversion structure may further include a third capacitor C3, a fourth capacitor C4, and a fifth capacitor C5.

[0072] Wherein, the third capacitor C3 is connected between the fourth inductor L4 and the first terminal of the first transformer T1. The fourth capacitor C4 is connected between the fifth inductor L5 and the first terminal of the second transformer T2. The fifth capacitor C5 is connected between the sixth inductor L6 and the first terminal of the third transformer T3.

[0073] Furthermore, the three-phase LLC resonant conversion structure may further include a sixth capacitor C6. The first terminal of the sixth capacitor C6 is connected to the fourth terminals of the first transformer T1, the second transformer T2, and the third transformer T3 respectively. The second terminal of the sixth capacitor is connected to the second terminals of the thirteenth MOS transistor Q13, the fourteenth MOS transistor Q14, the fifteenth MOS transistor Q15, and the constant current driving module 200 respectively.

[0074] In some embodiments, the first terminals of the seventh MOS transistor Q7, the eighth MOS transistor Q8, the ninth MOS transistor Q9, the tenth MOS transistor Q10, the eleventh MOS transistor Q11, the twelfth MOS transistor Q12, the thirteenth MOS transistor Q13, the fourteenth MOS transistor Q14, and the fifteenth MOS transistor Q15 may be source electrodes respectively, the second terminals may be drain electrodes respectively, and there may further be a third terminal, and the third terminal may be a gate, and the third terminal can be used to connect to the control module 500.

[0075] In addition, the first terminals of the first capacitor C1 and the second capacitor C2 may also be connected to the fourth inductor L4, the fifth inductor L5, and the sixth inductor L6 respectively.

[0076] The second terminal of the first capacitor C1 may also be connected to the second terminals of the seventh MOS transistor Q7, the ninth MOS transistor Q9, and the eleventh MOS transistor Q11 respectively.

[0077] The second terminal of the second capacitor C2 can also be respectively connected to the second terminals of the eighth MOS transistor Q8, the tenth MOS transistor Q10, and the twelfth MOS transistor Q12.

[0078] The present application also provides a laser, which includes a resonant cavity module, an optical output module, and the laser circuit in the above embodiments. One end of the resonant cavity module is connected to the laser circuit, and the other end of the resonant cavity module is connected to the optical output module.

[0079] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application shall be included within the protection scope of the present application.

Claims

1. A laser circuit, characterized in that, Including: A constant voltage module, a constant current driving module and a pump source; One end of the constant voltage module is used for the input of the power grid. The other end of the constant voltage module is connected to one end of the constant current driving module. The constant voltage module is used to convert the AC voltage of the power grid into a DC voltage; The other end of the constant current driving module is connected to the pump source. The constant current driving module is used to drive the pump source to work; It further includes an energy storage module, and the energy storage module is respectively connected to the constant voltage module and the constant current driving module; wherein, The constant voltage module outputs a DC voltage to the constant current driving module and can charge the energy storage module; The energy storage module can output a DC voltage to the constant current driving module.

2. The laser circuit according to claim 1, characterized in that, It further includes a control module, and the control module is respectively connected to the constant voltage module, the constant current driving module, the pump source and the energy storage module for control.

3. The laser circuit according to claim 2, wherein It further includes a first acquisition module and a second acquisition module. The first acquisition module is arranged between the control module and the constant voltage module, and the second acquisition module is arranged between the control module and the energy storage module.

4. The laser circuit according to any one of claims 1 to 3, characterized in that, The constant voltage module includes an active rectification structure and a three-phase LLC resonant conversion structure. One end of the active rectification structure is used for the input of the power grid. The other end of the active rectification structure is connected to one end of the three-phase LLC resonant conversion structure. The other end of the three-phase LLC resonant conversion structure is respectively connected to the energy storage module and the constant current driving module.

5. The laser circuit according to claim 4, wherein The active rectification structure includes a first inductor, a second inductor, a third inductor, a first MOS transistor, a second MOS transistor, a third MOS transistor, a fourth MOS transistor, a fifth MOS transistor, a sixth MOS transistor, a first capacitor and a second capacitor; wherein, The first end of the first MOS transistor is connected to the second end of the second MOS transistor. The first end of the third MOS transistor is connected to the second end of the fourth MOS transistor. The first end of the fifth MOS transistor is connected to the second end of the sixth MOS transistor. The first end of the first capacitor is connected to the first end of the second capacitor; The second ends of the first MOS transistor, the third MOS transistor and the fifth MOS transistor are connected to each other and are all connected to the second end of the first capacitor and the three-phase LLC resonant conversion structure; The first ends of the second MOS transistor, the fourth MOS transistor and the sixth MOS transistor are connected to each other and are all connected to the second end of the second capacitor and the three-phase LLC resonant conversion structure; One end of the first inductor is used for the input of the power grid. The other end of the first inductor is respectively connected to the first end of the first MOS transistor and the second end of the second MOS transistor; One end of the second inductor is used for the input of the power grid. The other end of the second inductor is respectively connected to the first end of the third MOS transistor and the second end of the fourth MOS transistor; One end of the third inductor is used for the input of the power grid. The other end of the third inductor is respectively connected to the first end of the fifth MOS transistor and the second end of the sixth MOS transistor; and The three-phase LLC resonant conversion structure is also respectively connected to the first ends of the first capacitor and the second capacitor.

6. The laser circuit according to claim 5, wherein, The three-phase LLC resonant conversion structure includes a seventh MOS transistor, an eighth MOS transistor, a ninth MOS transistor, a tenth MOS transistor, an eleventh MOS transistor, a twelfth MOS transistor, a thirteenth MOS transistor, a fourteenth MOS transistor, a fifteenth MOS transistor, a fourth inductor, a fifth inductor, a sixth inductor, a first transformer, a second transformer, and a third transformer; The first end of the seventh MOS transistor is connected to the second end of the eighth MOS transistor, the first end of the ninth MOS transistor is connected to the second end of the tenth MOS transistor, and the first end of the eleventh MOS transistor is connected to the second end of the twelfth MOS transistor; The second ends of the seventh MOS transistor, the ninth MOS transistor, and the eleventh MOS transistor are connected to each other and are all connected to the active rectification structure; The first ends of the eighth MOS transistor, the tenth MOS transistor, and the twelfth MOS transistor are connected to each other and are all connected to the active rectification structure; The first end of the first transformer is connected to the active rectification structure through the fourth inductor, the first end of the second transformer is connected to the active rectification structure through the fifth inductor, and the first end of the third transformer is connected to the active rectification structure through the sixth inductor; The second ends of the first transformer, the second transformer, and the third transformer are respectively connected to the active rectification structure; The third end of the first transformer is respectively connected to the first end of the constant current drive module and the first end of the energy storage module through the thirteenth MOS transistor, the third end of the second transformer is connected to the first end of the constant current drive module and the first end of the energy storage module through the fourteenth MOS transistor, and the third end of the third transformer is connected to the first end of the constant current drive module and the first end of the energy storage module through the fifteenth MOS transistor; The fourth end of the first transformer is respectively connected to the second end of the constant current drive module and the second end of the energy storage module, the fourth end of the second transformer is respectively connected to the second end of the constant current drive module and the second end of the energy storage module, and the fourth end of the third transformer is respectively connected to the second end of the constant current drive module and the second end of the energy storage module.

7. The laser circuit according to any one of claims 1 to 3, characterized in that The energy storage module uses a storage battery or a super capacitor.

8. A laser, characterized in that, It includes a resonant cavity module, an optical output module, and the laser circuit according to any one of claims 1 to 7. One end of the resonant cavity module is connected to the laser circuit, and the other end of the resonant cavity module is connected to the optical output module.

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