Shock wave power supply and charging and discharging method

Abstract

The invention provides a shock wave power supply and a charging and discharging method. At least two energy storage units, wherein all the energy storage units and the booster circuit are electrically connected to the first single circuit; one end of any discharge unit is electrically connected with one end of any energy storage unit through a first connecting circuit, and the other end of any discharge unit is electrically connected with the other end of any energy storage unit through a second connecting circuit; any discharge unit and at least one electrode switch type component are electrically connected to the same single circuit. When strong energy discharge is needed, the two discharge units can be controlled to discharge at the same time, and when weak energy discharge is needed, the two discharge units can be controlled not to discharge at the same time.

Description

Technical Field

[0001] The invention relates to the technical field of shock wave power supplies, and in particular to a shock wave power supply and a charging and discharging method. Background Art

[0002] The electrohydraulic shock wave technology is widely used in the treatment of extracorporeal kidney lithotripsy, peripheral vascular calcification, coronary artery stent implantation and pain relief (such as muscle pain). The existing electrohydraulic shock wave system includes an energy storage capacitor arranged in a high-voltage pulse power supply and a shock wave electrode electrically connected to the energy storage capacitor. The shock wave electrode is charged by the energy storage capacitor. When the voltage at both ends of the shock wave electrode reaches the breakdown voltage of the shock wave electrode, the shock wave electrode discharges, breaks down and releases the shock wave.

[0003] In order to increase the energy of the shock wave, it is sometimes necessary to discharge multiple shock wave electrodes simultaneously.

[0004] Since a single power supply of an existing electrohydraulic shock wave system can only discharge a single shock wave electrode to generate a shock wave, existing solutions all use a single power supply to connect multiple shock wave electrodes in series.

[0005] The traditional shock wave power supply adopts the existing DSP (Digital Signal Processing) chip, MCU (Microcontroller Unit), FPGA (Field Programmable Gate Array) and other common microcontrollers on the market to control the ACDC or DCDC boost module to charge the energy storage capacitor until the two ends of the energy storage capacitor reach a higher voltage, and then the control switch components release the energy in the energy storage capacitor to the shock wave generating device (usually a pair of shock wave electrodes immersed in a liquid medium), and the shock wave generating device generates an arc under the action of high voltage and then emits a shock wave.

[0006] Common shock wave power supply diagram Figure 1 The shock wave systems currently used in the coronary artery field are as follows Figure 1 As shown, a single shock wave electrode is discharged by a single power supply to generate shock waves. In the figure, 101 is a boost module, 102 is a control module, 100 is a high-voltage pulse power supply, 200 is a connecting component, 300 is a shock wave guide tube, and 301 and 302 are both shock wave electrodes.

[0007] When multiple shock wave electrodes are required to discharge simultaneously, each shock wave electrode needs to be connected in series to the interface of the boost module to implement discharge.

[0008] Currently, both domestic medical device manufacturers and Shockwave use a technical solution of connecting multiple shock wave electrodes in series with a single power supply.

[0009] The shock wave electrode is equivalent to a capacitor before breakdown, and is equivalent to an inductor after discharge breakdown. Take the discharge breakdown of two shock wave electrodes in series as an example. Figure 2 As shown in the circuit diagram. Since the parameters of the two shock wave electrodes cannot be absolutely the same, during the working process, one of the shock wave electrodes must break down and discharge first, and then the other shock wave electrode quickly breaks down and discharges. Since the time interval between the breakdown and discharge of the two shock wave electrodes is very short, it is similar to the two shock wave electrodes breaking down at the same time to generate shock waves. The shock waves generated by the two shock wave electrodes at the same time are superimposed on each other to increase the shock wave energy.

[0010] Disadvantages of existing technology:

[0011] Two shock wave electrodes can only be discharged together. If the requirement is that two shock wave electrodes or multiple shock wave electrodes are not discharged together (for example, discharged in sequence), or the requirement is to control one of the shock wave electrodes to discharge or several of the shock wave electrodes to discharge together according to the required shock wave energy (different shock wave energies need to be output for different application scenarios), if the existing technical solution wants to meet these two requirements, it can only use a multi-channel power supply to discharge two or more shock wave electrodes. Still taking two shock wave electrodes as an example, the existing technical solution needs to set up two boost modules, such as Figure 3 Obviously, this will make the circuit complex and the equipment cost multiplied.

[0012] In addition, the traditional shock wave generating circuit needs to charge and discharge the energy storage capacitor. Due to this limitation, the frequency of the shock wave is limited to about 5 Hz at most. The existing technical solutions cannot increase the frequency of the shock wave, which is still about 5 Hz.

[0013] The frequency of a shock wave refers to the number of times a shock wave is released per unit time. Summary of the invention

[0014] In view of this, the embodiments of this specification provide a shock wave power supply and a charging and discharging method to meet the needs of simultaneous or time-sharing discharge.

[0015] The embodiments of this specification provide the following technical solutions: a shock wave power supply, comprising: a boost circuit; at least two energy storage units, all of which are electrically connected to a first single circuit; at least two discharge units, one end of any discharge unit is electrically connected to one end of any energy storage unit via a first connection circuit, and the other end of any discharge unit is electrically connected to the other end of any energy storage unit via a second connection circuit; any discharge unit is electrically connected to the same single circuit with at least one electrode switch type component.

[0016] Furthermore, at least one of the first connecting circuit and the second connecting circuit is provided with at least one electrode switch type component.

[0017] Furthermore, the second connection circuit of the preceding discharge unit is adjacent to the first connection circuit of the adjacent discharge unit; or, the second connection circuit of the preceding discharge unit and the first connection circuit of the adjacent discharge unit are the same circuit; all the first connection circuits are provided with at least one electrode switch type component, and all the second connection circuits are also provided with at least one electrode switch type component.

[0018] Furthermore, each discharge unit includes at least one shock wave electrode; if all shock wave electrodes belonging to the same discharge unit are electrically connected to a second single circuit, one end of the second single circuit is electrically connected to one end of the corresponding energy storage unit through a first connection circuit, and the other end of the second single circuit is electrically connected to the other end of the corresponding energy storage unit through a second connection circuit.

[0019] Furthermore, it also includes a voltage-limiting protection component, which is electrically connected to the shock wave electrode in the same single circuit; and the voltage-limiting protection component is in a disconnected state when the voltage at both ends does not reach the breakdown voltage, and is in a conductive state when the voltage at both ends reaches the breakdown voltage.

[0020] Furthermore, each discharge unit further includes at least one voltage balancing resistor.

[0021] Furthermore, each energy storage unit includes at least one energy storage capacitor; and at least two energy storage capacitors belonging to the same energy storage unit are electrically connected to the same single circuit.

[0022] Furthermore, the electrode switch type components are all IGBT, GDT, SCR or MOSFET; and / or, the boost circuit includes a boost module, a power switch type component and a rectifier diode electrically connected to the same single circuit.

[0023] The present invention also provides a charging method, which is implemented by using the above-mentioned shock wave power supply, the shock wave power supply includes a first energy storage capacitor, a second energy storage capacitor, a first voltage balancing resistor and a second voltage balancing resistor, and the charging method includes:

[0024] Turn on the power switch type components and disconnect all electrode switch type components;

[0025] When the first energy storage capacitor is fully discharged and the second energy storage capacitor is not discharged, in a charging state, the boost circuit, the first energy storage capacitor and the second voltage balancing resistor form a charging loop;

[0026] When the first energy storage capacitor is not discharged and the second energy storage capacitor is fully discharged, in a charging state, the boost circuit, the first voltage balancing resistor and the second energy storage capacitor form a charging loop;

[0027] When the first energy storage capacitor is completely discharged and the second energy storage capacitor is also completely discharged, in a charging state, the boost circuit forms a charging loop with the first energy storage capacitor and the second energy storage capacitor.

[0028] The present invention also provides a discharge method, which is implemented by using the above-mentioned shock wave power supply, the shock wave power supply includes a first shock wave electrode, a second shock wave electrode, a first electrode switch type component, a second electrode switch type component and a third electrode switch type component, and the discharge method includes:

[0029] When the first electrode switch type component and the second electrode switch type component are turned on and the third electrode switch type component is turned off, the first shock wave electrode discharges alone;

[0030] When the first electrode switch type component is disconnected and the second electrode switch type component and the third electrode switch type component are turned on, the second shock wave electrode discharges alone;

[0031] When the first electrode switch type component, the second electrode switch type component and the third electrode switch type component are all turned on, one end of the first shock wave electrode is electrically connected to one end of the second shock wave electrode, the other end of the first shock wave electrode is electrically connected to the other end of the second shock wave electrode, and the first shock wave electrode and the second shock wave electrode discharge simultaneously;

[0032] When the first electrode switch type component and the third electrode switch type component are turned on and the second electrode switch type component is turned off, the first shock wave electrode and the second shock wave electrode are located in the same single circuit and discharge simultaneously.

[0033] Compared with the prior art, the at least one technical solution adopted in the embodiments of this specification can achieve the following beneficial effects:

[0034] Any combination discharge of shock wave electrodes can be completed according to different shock wave energy requirements, such as single shock wave electrode discharge, at least two shock wave electrodes discharge in sequence according to preset discharge timing requirements, at least two shock wave electrodes discharge in series or in parallel, or even a complex combination discharge method of first discharging at least two shock wave electrodes in series or in parallel, and then discharging a single shock wave electrode. Not only can the energy of the shock wave be adjusted according to the number of shock wave electrodes discharged together, but the frequency of shock wave occurrence can also be adjusted according to demand, so as to adapt to the shock wave energy requirements in various application scenarios such as cardiovascular calcification treatment and peripheral vascular calcification treatment. The energy level and frequency can be adjusted according to the different degrees of calcification, so as to achieve just the right treatment of the calcification problem without affecting the integrity of the tissue around the calcified lesion.

[0035] The effect of multiple boost modules can be achieved through one boost module, which effectively reduces the complexity of the circuit and greatly reduces the cost of the shock wave generating system.

[0036] When the calcification area is large, multiple electrodes can be arranged at different positions, because the flexibility of the power supply can achieve simultaneous or time-sharing discharge of electrodes at different positions, thereby increasing the treatment area of ​​calcification. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0038] Figure 1 This is the schematic diagram of a traditional shock wave power supply;

[0039] Figure 2 It is a schematic diagram of a shock wave power supply of one embodiment of the prior art;

[0040] Figure 3 It is a schematic diagram of a shock wave power supply of another embodiment of the prior art;

[0041] Figure 4 It is a structural schematic diagram of a first implementation scheme of a first type of embodiment of a shock wave power supply of the present invention;

[0042] Figure 5 It is a structural schematic diagram of a second implementation scheme of the first type of embodiment of the shock wave power supply of the present invention;

[0043] Figure 6 It is a structural schematic diagram of a first implementation scheme of the second type of embodiment of the shock wave power supply of the present invention;

[0044] Figure 7 It is a schematic diagram of the structure of two shock wave electrode implementation schemes of the present invention;

[0045] Figure 8 It is a schematic diagram of the structure of three shock wave electrode implementation schemes of the present invention;

[0046] Fig. 9 It is a schematic diagram of the structure of six shock wave electrode implementation schemes of the present invention.

[0047] Reference numerals in the figure: 101, boost module; 102, control module; 100, high-voltage pulse power supply; 200, connecting component; 300, shock wave guide tube; 301, shock wave electrode; 302, shock wave electrode. DETAILED DESCRIPTION

[0048] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0049] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0050] like Figure 4 As shown, the present invention provides a shock wave power supply, including a boost circuit, at least two energy storage units and at least two discharge units. All energy storage units and the boost circuit are electrically connected to a first single circuit; one end of any discharge unit is electrically connected to one end of any energy storage unit through a first connection circuit, and the other end of any discharge unit is electrically connected to the other end of any energy storage unit through a second connection circuit; any discharge unit is electrically connected to at least one electrode switch type component in the same single circuit.

[0051] The embodiments of the present invention can complete the combined discharge of any discharge unit according to different shock wave energy requirements, such as single discharge unit discharge, at least two discharge units discharge in sequence according to preset discharge timing requirements, at least two discharge units discharge together, or even a complex combined discharge method of first discharging at least two discharge units and then discharging a single discharge unit. Not only can the energy of the shock wave be adjusted according to the number of discharge units discharged together, but the frequency of shock waves can also be adjusted according to demand, so as to adapt to the shock wave energy requirements in various application scenarios such as cardiovascular calcification treatment and peripheral vascular calcification treatment. The energy level and frequency can be adjusted according to the different degrees of calcification, so as to achieve the goal of just dealing with the calcification problem without affecting the integrity of the tissue around the calcified lesions.

[0052] At the same time, the boost circuit in the embodiment of the present invention can charge all energy storage capacitors at the same time. The present invention realizes efficient energy transmission and uniform energy distribution, ensuring that each energy storage unit in the system can quickly and evenly reach the required energy level. This design not only improves the convenience and reliability of the charging process, but also allows more precise control of the charging state of the entire system, so that the subsequent discharge process can be more stable and predictable, and ultimately improves the overall performance of the shock wave power supply and the energy consistency of the output shock wave.

[0053] It should be noted that the electrical connection referred to in this article refers to a way of connecting electrical devices or components to each other through wires, cables or other types of wires to achieve current transmission and signal communication. It can be permanent or removable, depending on the type of connector used and the application scenario.

[0054] At least one of the first connection circuit and the second connection circuit is provided with at least one electrode switch type component. Such a design not only improves the flexibility of the system, allowing different discharge units to be discharged individually or in combination, but also makes it possible to adjust the energy and frequency of the shock wave according to actual needs, thereby better adapting to a variety of medical application scenarios. In addition, by controlling the connection timing of the electrode switch, a high-frequency shock wave can be generated in a very short time, significantly improving the treatment effect.

[0055] It should be noted that Figure 4 In the embodiment of the present invention, the first energy storage capacitor C1, the second energy storage capacitor C2, ... and the nth energy storage capacitor Cn are included. The multiple energy storage capacitors are connected in series in sequence, which means that one end of the first energy storage capacitor C1 is connected to the positive electrode of the boost circuit, the other end of the first energy storage capacitor C1 is connected to one end of the second energy storage capacitor C2, the other end of the second energy storage capacitor C2 is connected to one end of the subsequent energy storage capacitor, and the other end of the nth energy storage capacitor is connected to the negative electrode of the boost circuit in sequence. Wherein, the value range of the above n is a natural number greater than or equal to 3.

[0056] The embodiment of the present invention includes a first shock wave electrode L1, a second shock wave electrode L2, ... and an nth shock wave electrode Ln, wherein the first shock wave electrode L1 is electrically connected to the first energy storage capacitor C1, the second shock wave electrode L2 is electrically connected to the second energy storage capacitor C2, and the nth shock wave electrode Ln is electrically connected to the nth energy storage capacitor. Taking the first shock wave electrode L1 and the first energy storage capacitor C1 as an example, one end of the first shock wave electrode L1 is connected to one end of the first energy storage capacitor C1, and both are connected to the positive electrode of the boost circuit, and the other end of the first shock wave electrode L1 is connected to the other end of the first energy storage capacitor C1, and both are connected to the first end of the second energy storage capacitor C2. The connection method of the subsequent shock wave electrodes is the same as the above scheme, and it will not be repeated here.

[0057] like Figure 5 As shown, in one embodiment provided by the present invention, the second connection circuit of the preceding discharge unit is adjacent to the first connection circuit of the adjacent discharge unit. In this embodiment, the two adjacent discharge units are independent of each other, and at least one of the first connection circuit and the second connection circuit is provided with at least one electrode switch type component, that is, there are the following three modes: the first mode, at least one electrode switch type component is provided on the first connection circuit, and no electrode switch type component is provided on the second connection circuit; the second mode, no electrode switch type component is provided on the first connection circuit, and at least one electrode switch type component is provided on the second connection circuit; the third mode, at least one electrode switch type component is provided on the first connection circuit, and at least one electrode switch type component is also provided on the second connection circuit.

[0058] The present invention achieves independent control and flexible discharge combination between discharge units by cleverly configuring electrode switch-type components in the connection circuit of the discharge unit. This design not only enhances the system's ability to regulate the discharge process, but also allows the precise control of the working mode of each discharge unit through different combinations of switches, whether it is a single discharge or a coordinated discharge with adjacent units. Such a design improves the adaptability of the system and the flexibility of operation, so that the discharge strategy can be adjusted according to actual needs, the discharge efficiency and the characteristics of the output shock wave are optimized, and the controllability of the treatment effect and the overall performance of the power supply system are improved.

[0059] like Figure 4As shown, in another embodiment, the second connection circuit of the front discharge unit and the first connection circuit of the adjacent discharge unit are the same circuit. This configuration effectively simplifies the circuit layout and reduces the number of independent circuits required, thereby reducing the complexity and manufacturing cost of the overall system. At the same time, this design also increases the synergy between the discharge units, so that the discharge process can be more coherent and synchronous, and improves the working efficiency and stability of the shock wave generating device. In addition, this circuit layout also helps to improve the efficiency of energy transmission, making the generation of shock waves more efficient and controllable, and further enhancing the effect and safety of shock wave therapy.

[0060] It should be noted that, in the above two embodiments, all the first connection circuits are provided with at least one electrode switch type component, and all the second connection circuits are also provided with at least one electrode switch type component. The specific number of components can be selected according to different work needs, and other components can be provided between two adjacent electrode switch type components to meet different work needs, which will not be illustrated one by one here.

[0061] In one embodiment of the present invention, each discharge unit includes at least one shock wave electrode. Specifically, the following embodiments are included:

[0062] If all shock wave electrodes belonging to the same discharge unit are electrically connected to the second single circuit, one end of the second single circuit is electrically connected to one end of the corresponding energy storage unit through the first connection circuit, and the other end of the second single circuit is electrically connected to the other end of the corresponding energy storage unit through the second connection circuit.

[0063] like Figure 6 As shown, in this embodiment, a plurality of shock wave electrodes L1, L2 and L3 are included, and the above L1 to L3 are connected end to end in sequence, and one end of L1 is connected to one end of the second single circuit, and the other end of L3 is connected to the other end of the second single circuit. The two ends of the first energy storage capacitor C1 are respectively connected to the two ends of the second single circuit, and the two ends of the first voltage balancing resistor R1 are respectively connected to the two ends of the first energy storage capacitor C1. The first electrode switch type component SW2 and the second electrode switch type component SW3 are respectively arranged on the first connection circuit and the second connection circuit.

[0064] It should be noted that the present embodiment includes: a first electrode switch type component SW2, a second electrode switch type component SW3, ... and an n+1th electrode switch type component SWn+2. It also includes a power switch type component SW1, and its specific setting position is shown in the attached Figures 4 to 9 As shown, it will not be described in detail here.

[0065] Of course, the present invention is not limited to the above embodiments. Figure 4As shown, the present invention also provides an embodiment, in which each energy storage unit corresponds to only one shock wave electrode. In an embodiment not shown in the figure, the above three embodiments can be combined, that is, the same circuit can include a solution in which one energy storage unit corresponds to one shock wave electrode, and can also include a solution in which one energy storage unit corresponds to multiple shock electrodes.

[0066] Preferably, the shock wave power supply of the present invention also includes a voltage-limiting protection component, which is electrically connected to the shock wave electrode in the same single circuit; and the voltage-limiting protection component is in an off state when the voltage at both ends does not reach the breakdown voltage, and is in an on state when the voltage at both ends reaches the breakdown voltage.

[0067] Specifically, the voltage-limiting protection component is a gas discharge tube or a varistor.

[0068] In the embodiment of the present invention, each discharge unit further includes at least one voltage balancing resistor.

[0069] Specific reference Figure 4 As shown, the embodiment of the present invention includes a first voltage balancing resistor R1, a second voltage balancing resistor R2, ... and an nth voltage balancing resistor Rn, wherein the first voltage balancing resistor R1 corresponds to the first energy storage capacitor C1, the second voltage balancing resistor R2 corresponds to the second energy storage capacitor C2, and the nth voltage balancing resistor Rn corresponds to the nth energy storage capacitor Cn. Here, the discharge unit where the first voltage balancing resistor R1 and the first energy storage capacitor C1 are located is taken as an example: one end of the first voltage balancing resistor R1, one end of the first energy storage capacitor C1 and the first end of the first shock wave electrode L1 are all connected, and the other end of the first voltage balancing resistor R1, the other end of the first energy storage capacitor C1 and the other end of the first shock wave electrode L1 are all connected. In addition, the connection points between the two ends of the first voltage balancing resistor R1 and the first connection circuit and the second connection circuit are located between the first energy storage capacitor C1 and the corresponding electrode switch type components (SW2 and SW3). The structures of other discharge units are consistent with the above-mentioned discharge units, and they are not described one by one here.

[0070] Preferably, each energy storage unit includes at least one energy storage capacitor; if the same energy storage unit includes multiple energy storage capacitors, at least two energy storage capacitors belonging to the same energy storage unit are electrically connected to the same single circuit.

[0071] Electrically connecting multiple energy storage capacitors to the same single circuit can effectively increase the total operating voltage of the energy storage unit while ensuring that the charge on each energy storage capacitor is consistent. This design not only increases the energy storage capacity and output voltage of the system, but also achieves uniform distribution of capacitor voltage through the voltage divider effect, thereby improving energy conversion efficiency and the energy intensity of the shock wave.

[0072] Furthermore, the boost circuit includes a boost module, a power switch type component SW1 and a rectifier diode D1 which are electrically connected to the same single circuit.

[0073] The boost module can use an AC power supply or a high voltage power supply, and the power switch type components are IGBT, GDT, SCR or MOSFET. The electrode switch type components are IGBT, GDT, SCR or MOSFET. In the embodiment of the present invention, the switch selects IGBT, and its action time is generally tens of nanoseconds (ns).

[0074] like Figure 7 As shown, the present invention also provides a charging method, which is implemented by the above-mentioned shock wave power supply, the shock wave power supply includes a first energy storage capacitor C1, a second energy storage capacitor C2, a first voltage balancing resistor R1 and a second voltage balancing resistor R2, and the charging method includes:

[0075] Turn on the power switch type component SW1, and disconnect the electrode switch type components SW2, SW3 and SW4;

[0076] When the first energy storage capacitor C1 is fully discharged and the second energy storage capacitor C2 is not discharged, in the charging state, the boost circuit and the first energy storage capacitor C1 and the second voltage balancing resistor R2 form a charging loop. Figure 7 As indicated by the arrow;

[0077] When the first energy storage capacitor C1 is not discharged and the second energy storage capacitor C2 is fully discharged, in the charging state, the boost circuit and the first voltage balancing resistor R1 and the second energy storage capacitor C2 form a charging loop;

[0078] When the first energy storage capacitor C1 is completely discharged and the second energy storage capacitor C2 is also completely discharged, in the charging state, the boost circuit and the first energy storage capacitor C1 and the second energy storage capacitor C2 form a charging loop.

[0079] The above method is only an embodiment of the present invention and does not limit the present invention. When the energy storage capacitor and the discharge unit of the present invention are superimposed, the corresponding embodiment is charged according to the above charging rule, and the embodiment should also be within the protection scope of the present application.

[0080] Two embodiments are provided below for illustration.

[0081] Example 1: Figure 8 As shown, the shock wave power supply includes a first energy storage capacitor C1, a second energy storage capacitor C2 and a third energy storage capacitor C3.

[0082] Keep all electrode switch-type components SW2, SW3 and SW4 open, and turn on the power switch-type component SW1, so that the boost circuit can charge all energy storage capacitors.

[0083] When the first energy storage capacitor C1 is discharged and the second energy storage capacitor C2 and the third energy storage capacitor C3 are not discharged, in the charging state, the boost circuit forms a charging loop with the first energy storage capacitor C1, the second voltage balancing resistor R2 and the third voltage balancing resistor R3.

[0084] When the first energy storage capacitor C1 is not discharged, the second energy storage capacitor C2 is fully discharged and the third energy storage capacitor C3 is not discharged, in the charging state, the boost circuit forms a charging loop with the first voltage balancing resistor R1, the second energy storage capacitor C2 and the third voltage balancing resistor R3.

[0085] When the first energy storage capacitor C1 and the second energy storage capacitor C2 are discharged and the third energy storage capacitor C3 is not discharged, in the charging state, the boost circuit forms a charging loop with the first energy storage capacitor C1, the second energy storage capacitor C2 and the third voltage balancing resistor R3.

[0086] When the first energy storage capacitor C1 is not discharged, the second energy storage capacitor C2 is not discharged and the third energy storage capacitor C3 is fully discharged, in the charging state, the boost circuit forms a charging loop with the first voltage balancing resistor R1, the second voltage balancing resistor R2 and the third energy storage capacitor C3.

[0087] When the first energy storage capacitor C1 is discharged, the second energy storage capacitor C2 is not discharged, and the third energy storage capacitor C3 is also discharged, in the charging state, the boost circuit forms a charging loop with the first energy storage capacitor C1, the second voltage balancing resistor R2 and the third energy storage capacitor C3.

[0088] When the first energy storage capacitor C1 is not discharged, the second energy storage capacitor C2 is fully discharged, and the third energy storage capacitor C3 is also fully discharged, in the charging state, the boost circuit forms a charging loop with the first voltage balancing resistor R1, the second energy storage capacitor C2 and the third energy storage capacitor C3.

[0089] When the first energy storage capacitor C1 is fully discharged, the second energy storage capacitor C2 is fully discharged, and the third energy storage capacitor C3 is also fully discharged, in the charging state, the boost circuit forms a charging loop with the first energy storage capacitor C1, the second energy storage capacitor C2 and the third energy storage capacitor C3 to charge all capacitors simultaneously.

[0090] Example 2: Fig. 9As shown, the shock wave power supply includes an energy storage circuit of six energy storage capacitors C1, C2, C3, C4, C5 and C6 (the energy storage capacitors are simplified, for example, the first energy storage capacitor C1 is referred to as C1), and corresponding voltage balancing resistors R1, R2, R3, R4, R5 and R6 (the voltage balancing resistors are simplified, for example, the first voltage balancing resistor R1 is referred to as R1), then the embodiment 2 includes the following states:

[0091] Initial state: keep all electrode switch type components SW2 to SW8 off, and turn on the power switch type component SW1, so that the boost circuit can charge all energy storage capacitors.

[0092] Charging state after a single energy storage capacitor is discharged: When only C1 is discharged and C2 to C6 are not discharged, in the charging state, the boost circuit forms a charging loop with C1 and R2 to R6. When only C2 is discharged and C1 and C3 to C6 are not discharged, in the charging state, the boost circuit forms a charging loop with R1, C2, R3 to R6, and so on. Charging state after two energy storage capacitors are discharged: When C1 and C2 are discharged and C3 to C6 are not discharged, in the charging state, the boost circuit forms a charging loop with C1, C2, R3 to R6. When C2 and C3 are discharged and C1 and C4 to C6 are not discharged, in the charging state, the boost circuit forms a charging loop with R1, C2, C3, R4 to R6.

[0093] And so on, covering all possible pairwise combinations.

[0094] The charging state of the three energy storage capacitors after discharge: When C1, C2 and C3 are discharged, but C4 to C6 are not discharged, in the charging state, the boost circuit forms a charging loop with C1, C2, C3, R4 to R6. When C1, C2 and C4 are discharged, but C3, C5 to C6 are not discharged, in the charging state, the boost circuit forms a charging loop with C1, C2, R3, C4, R5 to R6.

[0095] And so on, covering all possible combinations of three capacitors.

[0096] The charging state of the four energy storage capacitors after discharge: When C1, C2, C3 and C4 are discharged, and C5 and C6 are not discharged, in the charging state, the boost circuit forms a charging loop with C1, C2, C3, C4, R5 and R6.

[0097] And so on, covering all possible combinations of four capacitors.

[0098] The charging state of the five energy storage capacitors after discharge: When C1 to C5 are discharged and C6 is not discharged, in the charging state, the boost circuit forms a charging loop with C1 to C5 and R6.

[0099] And so on, covering all possible combinations of five capacitors.

[0100] Charging state after full discharge: When all energy storage capacitors C1 to C6 are discharged, in the charging state, the boost circuit will charge all energy storage capacitors again at the same time.

[0101] It should be noted that the charging state and the discharging state in the embodiment of the present invention are independent of each other, that is, when any energy storage capacitor is charged, the other energy storage capacitors cannot be discharged. Similarly, when any energy storage capacitor is discharged, the other energy storage capacitors cannot be charged.

[0102] When charging is complete, SW1 will be disconnected to ensure the safety of the circuit.

[0103] Reference Figure 7 As shown, the present invention also provides a discharge method, which is implemented by the above-mentioned shock wave power supply, the shock wave power supply includes a first shock wave electrode L1, a second shock wave electrode L2, a first electrode switch type component SW2, a second electrode switch type component SW3 and a third electrode switch type component SW4, and the discharge method includes:

[0104] When the first electrode switch type component SW2 and the second electrode switch type component SW3 are turned on and the third electrode switch type component SW4 is turned off, the first shock wave electrode L1 is discharged alone;

[0105] When the first electrode switch type component SW2 is turned off and the second electrode switch type component SW3 and the third electrode switch type component SW4 are turned on, the second shock wave electrode L2 is discharged alone;

[0106] When the first electrode switch type component SW2, the second electrode switch type component SW3 and the third electrode switch type component SW4 are all turned on, the first shock wave electrode L1 and the second shock wave electrode L2 are connected in parallel to discharge;

[0107] When the first electrode switch type component SW2 and the third electrode switch type component SW4 are turned on and the second electrode switch type component SW3 is turned off, the first shock wave electrode L1 and the second shock wave electrode L2 are connected in series to discharge.

[0108] The above method is only an embodiment of the present invention and does not limit the present invention. When the energy storage capacitor and the discharge unit of the present invention are superimposed, the corresponding embodiment discharges according to the above discharge rule, and the embodiment should also be within the protection scope of the present application.

[0109] The following embodiments are provided for illustration (hereinafter, the first shock wave electrode is referred to as L1, the first electrode switch type component SW2 is referred to as SW2, and so on).

[0110] Example 3: Reference Figure 8 As shown, the shock wave power supply includes L1, L2 and L3, and the corresponding electrode switch type components include SW2, SW3, SW4, SW5.

[0111] When SW2 and SW3 are turned on, and SW4 and SW5 are turned off, L1 is discharged alone.

[0112] When SW2 is off and SW3 and SW4 are on, L2 is discharged alone.

[0113] When SW4 and SW5 are turned on, and SW2 and SW3 are turned off, L3 is discharged alone.

[0114] When SW2 and SW4 are on and SW3 and SW5 are off, L1 and L2 are connected to the same single circuit and discharge together.

[0115] When SW2, SW3 and SW4 are all turned on and SW5 is turned off, one end of L1 and L2 are electrically connected, and the other end of L1 and L2 are also electrically connected, and common discharge is achieved.

[0116] When SW2 and SW5 are turned on, and SW3 and SW4 are turned off, L1, L2, and L3 are connected to the same single circuit and discharge together.

[0117] When SW2, SW3 and SW5 are all turned on and SW4 is turned off, L2 and L3 are connected to the same single circuit and discharge together, one end of L1 is connected to one end of L2, the other end of L1 is connected to one end of L3, and L1 and the combination of L2 and L3 discharge together.

[0118] When SW3 and SW5 are turned on, and SW2 and SW4 are turned off, L2 and L3 are connected to the same single circuit and discharge together.

[0119] When SW3, SW4 and SW5 are all turned on and SW2 is turned off, one end of L2 and L3 are electrically connected, and the other end of L2 and L3 are also electrically connected, and common discharge is achieved.

[0120] When SW2, SW3, SW4 and SW5 are all turned on, one end of L1, one end of L2 and one end of L3 are electrically connected, the other end of L1, the other end of L2 and the other end of L3 are electrically connected, and all motors are discharged together.

[0121] Reference Fig. 9As shown, the present invention also includes an embodiment of 6 shock wave electrodes, in which every 3 shock wave electrodes form a module, and the two modules are independent of each other, and the shock wave electrodes can be combined with each other. Of course, according to different needs, the present invention can also include more shock wave electrodes, which will not be explained one by one here.

[0122] It should be noted that when the discharge is completed, the corresponding electrode switch type components will be disconnected to ensure the safety of the circuit.

[0123] The above method can control the frequency of the shock wave by controlling the time interval of each shock wave electrode discharge, because all the energy storage capacitors have been charged before the shock wave electrode discharges and breaks down. Therefore, the frequency of the shock wave can be changed to a very high degree without being limited by the charging and discharging time of the energy storage capacitor.

[0124] The above is only a specific embodiment of the present invention, and cannot be used to limit the scope of the invention. Therefore, the replacement of equivalent components, or equivalent changes and modifications made according to the scope of protection of the patent of the present invention, should still fall within the scope of this patent. In addition, the technical features of the present invention can be freely combined with each other, with each other, and with each other.

Claims

1. A shock wave power supply, characterized in that: include: Boost circuit; At least two energy storage units, all energy storage units and the boost circuit are electrically connected to a first single circuit; At least two discharge units, one end of any discharge unit is electrically connected to one end of any energy storage unit through a first connection circuit, and the other end of any discharge unit is electrically connected to the other end of any energy storage unit through a second connection circuit; any discharge unit is electrically connected to at least one electrode switch type component in the same single circuit.

2. The shock wave power supply according to claim 1, characterized in that: At least one of the first connecting circuit and the second connecting circuit is provided with at least one of the electrode switching type components.

3. The shock wave power supply according to claim 2, characterized in that: The second connection circuit of the preceding discharge cell is adjacent to the first connection circuit of the adjacent discharge cell; or, The second connection circuit of the preceding discharge unit and the first connection circuit of the adjacent discharge unit are the same circuit; All first connection circuits are provided with at least one electrode switch type component, and all second connection circuits are also provided with at least one electrode switch type component.

4. The shock wave power supply circuit according to claim 3, characterized in that: Each discharge unit includes at least one shock wave electrode; If all shock wave electrodes belonging to the same discharge unit are electrically connected to the second single circuit, one end of the second single circuit is electrically connected to one end of the corresponding energy storage unit through the first connection circuit, and the other end of the second single circuit is electrically connected to the other end of the corresponding energy storage unit through the second connection circuit.

5. The shock wave power supply according to claim 4, characterized in that: The invention also includes a voltage-limiting protection component, which is electrically connected to the shock wave electrode in the same single circuit; and the voltage-limiting protection component is in an off state when the voltage at both ends does not reach the breakdown voltage, and is in an on state when the voltage at both ends reaches the breakdown voltage.

6. The shock wave power supply according to claim 1, characterized in that: Each of the discharge units further includes at least one voltage balancing resistor.

7. The shock wave power supply according to claim 1, characterized in that: Each energy storage unit includes at least one energy storage capacitor; At least two energy storage capacitors belonging to the same energy storage unit are electrically connected to the same single circuit.

8. The shock wave power supply according to any one of claims 1 to 7, characterized in that: The electrode switch type components are IGBT, GDT, SCR or MOSFET; and / or, The boost circuit comprises a boost module, a power switch type component and a rectifier diode which are electrically connected to the same single circuit.

9. A charging method, implemented by using the shock wave power supply according to any one of claims 1 to 8, characterized in that: The shock wave power supply comprises a first energy storage capacitor, a second energy storage capacitor, a first voltage balancing resistor and a second voltage balancing resistor, and the charging method comprises: Turning on the power switch type component and disconnecting all the electrode switch type components; When the first energy storage capacitor is fully discharged and the second energy storage capacitor is not discharged, in a charging state, the boost circuit, the first energy storage capacitor and the second voltage balancing resistor form a charging loop; When the first energy storage capacitor is not discharged and the second energy storage capacitor is fully discharged, in a charging state, the boost circuit, the first voltage balancing resistor and the second energy storage capacitor form a charging loop; When the first energy storage capacitor is completely discharged and the second energy storage capacitor is also completely discharged, in a charging state, the boost circuit forms a charging loop with the first energy storage capacitor and the second energy storage capacitor.

10. A discharge method, implemented by using the shock wave power supply according to any one of claims 1 to 8, characterized in that: The shock wave power supply comprises a first shock wave electrode, a second shock wave electrode, a first electrode switch type component, a second electrode switch type component and a third electrode switch type component, and the discharge method comprises: When the first electrode switch type component and the second electrode switch type component are turned on and the third electrode switch type component is turned off, the first shock wave electrode discharges alone; When the first electrode switch type component is disconnected and the second electrode switch type component and the third electrode switch type component are turned on, the second shock wave electrode discharges alone; When the first electrode switch type component, the second electrode switch type component and the third electrode switch type component are all turned on, one end of the first shock wave electrode is electrically connected to one end of the second shock wave electrode, the other end of the first shock wave electrode is electrically connected to the other end of the second shock wave electrode, and the first shock wave electrode and the second shock wave electrode discharge simultaneously; When the first electrode switch-type component and the third electrode switch-type component are turned on and the second electrode switch-type component is turned off, the first shock wave electrode and the second shock wave electrode are located in the same single circuit and discharge simultaneously.

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