A high-voltage pulse adaptive bipolar output system

Abstract

The application discloses a high-voltage pulse adaptive bipolar output system, which comprises a pulse waveform input module, a load, electrodes 1 and 2 connected with the load, a controller and a waveform detection module, characterized in that a plurality of high-voltage switches are connected between the pulse waveform input module and the load electrodes 1 and 2, the controller is electrically connected with the high-voltage switches to realize on-off control, so that the pulse waveform input module outputs a positive phase waveform or a negative phase waveform after inputting a positive phase waveform, the waveform detection module is electrically connected with the controller and the load, the waveform detection module transmits voltage or current data to the controller, the controller monitors whether the waveform is abnormal in real time, in the process of continuous waveform input, the waveform detection module detects the load voltage or current and attenuates the load voltage or current, and then the load voltage or current is sent to the controller for judgment, and the controller monitors whether the waveform is abnormal in real time.

Description

Technical Field

[0001] This invention relates to the field of pulsed electromagnetic field technology, specifically a high-voltage pulse adaptive bipolar output system. Background Technology

[0002] PEMF (Pulsed Electromagnetic Field) is a technique that uses pulsed electromagnetic fields to act on biological tissues or materials, and it is widely used in medical, rehabilitation, agricultural, and industrial fields. In PEMF technology, the waveform is one of the core parameters, directly affecting the biological effects or material treatment outcomes. For greater safety, PEMF devices often use the closing control of a high-voltage switch to output energy to the load. This places high demands on the stability of the high-voltage switch; when the high-voltage switch malfunctions, it will affect the waveform output, thereby impacting the treatment effect.

[0003] Traditional systems can only output from a single pole and cannot switch between positive and negative pulses, limiting the application of PEMF technology in scenarios requiring bidirectional excitation. They typically use fixed combinations of high-voltage switches, lacking flexibility. If a high-voltage switch fails, such as failing to close properly or having excessively high closing impedance, the entire system may fail to output a normal waveform, potentially even damaging the equipment. Furthermore, existing systems, when detecting waveform anomalies, can often only determine whether the waveform is abnormal, but struggle to quickly and accurately pinpoint the cause of the fault, leading to prolonged maintenance and repair times.

[0004] Furthermore, the waveform detection modules in existing systems typically only passively monitor waveforms and cannot automatically switch high-voltage switch combinations to maintain normal output when an anomaly is detected. This not only affects system reliability but may also lead to production interruptions or equipment downtime, increasing maintenance costs. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a high-voltage pulse adaptive bipolar output system, which provides a high-voltage pulse system that can flexibly switch high-voltage switch combinations, quickly locate the cause of faults, and maintain normal waveform output.

[0006] This invention is achieved through the following technical solution: A high-voltage pulse adaptive bipolar output system of this invention includes a pulse waveform input module, a load, electrodes 1 and 2 connected to the load, a controller, and a waveform detection module. The system is characterized in that multiple high-voltage switches are connected between the pulse waveform input module and the load electrodes 1 and 2; the controller is electrically connected to the high-voltage switches to achieve on / off control; after inputting a positive-phase waveform, the pulse waveform input module outputs a positive-phase or negative-phase waveform; the waveform detection module is electrically connected to the controller and the load; the waveform detection module transmits voltage or current data to the controller; the controller monitors whether the waveform is abnormal in real time; and the controller controls the on / off combination of the high-voltage switches in real time based on the data from the waveform detection module.

[0007] Advantageously, the waveform detection module detects and attenuates the load voltage or current and sends it to the controller for judgment, and the controller monitors whether the waveform is abnormal in real time.

[0008] Beneficially, the high-voltage switch is a high-voltage normally open relay, contactor, or thyristor switch.

[0009] Advantageously, the high-voltage switch includes K1+, K2+, K3+, K4+, K1-, K2-, K3-, K4-, K1*, and K2*.

[0010] Advantageously, wherein K1+, K1* and electrode 1 are connected in series, K2+, K2* and electrode 2 are connected in series, K3+ and electrode 1 are connected in series, K4+ and electrode 2 are connected in series, K1-, K1* and electrode 1 are connected in series, K2-, K2* and electrode 2 are connected in series, K3- and electrode 1 are connected in series, K4- and electrode 2 are connected in series, K1+, K2+, K3+, K4+ are connected to the positive terminal of the pulse waveform input module, K1-, K2-, K3-, K4- are connected to the negative terminal of the pulse waveform input module, K1+, K2+, K3+, K4+ are connected in parallel, and K1-, K2-, K3-, K4- are connected in parallel.

[0011] Advantageously, when a positive phase pulse wave is input, the high-voltage switches K1+, K2-, K1*, and K2* are closed, and the other high-voltage switches are opened, then a positive phase pulse is output between electrode 1 and electrode 2. When the high-voltage switches K1-, K2+, K1*, and K2* are closed, and the other high-voltage switches are opened, then a negative phase pulse is output between electrode 1 and electrode 2.

[0012] A method for waveform detection anomaly judgment and normal waveform output using a high-voltage pulse adaptive bipolar output system: First, disconnect all high-voltage switches, close K1+, K2-, K1*, K2*, output positive phase pulses, and the waveform detection module detects whether there is an anomaly. If there is no anomaly, the normal output is maintained. If there is an anomaly, the second step is started to determine the cause of the waveform detection anomaly.

[0013] The second step is to close K3+ if the waveform detection is abnormal in the first step. The waveform detection module will check if there is an abnormality. If the waveform output is normal, it means that K1+ cannot be closed normally. If the waveform output is abnormal, proceed to the third step.

[0014] The third step is to close K4- based on the results of the second step if the waveform detection is abnormal. The waveform detection module will check if there is an abnormality. If the waveform output is normal, it means that K2- cannot be closed normally. If the waveform output is abnormal, proceed to the fourth step.

[0015] Step 4: Disconnect all high-voltage switches, close K3+, K2- and K2*, and check for abnormalities using the waveform detection module. If the waveform output is normal, it indicates that the withstand voltage or insulation performance of K1- has decreased. If the waveform output is abnormal, proceed to step 5.

[0016] Fifth step: If the waveform detection is abnormal in the result of the fourth step, disconnect all high-voltage switches, disconnect K3+ and K2* and close K1+, K1* and K4-. The waveform detection module will check for abnormalities. If the waveform output is normal, it means that the withstand voltage or insulation performance of the high-voltage switch K2+ has decreased.

[0017] The beneficial effects of the present invention are as follows: First, when a positive phase waveform is input, the controller is electrically connected to K1+, K2+, K3+, K4+, K1-, K2-, K3-, K4-, K1*, and K2* to achieve on / off control, so that the pulse circuit can output a positive or negative phase waveform after a positive phase waveform is input.

[0018] During continuous waveform input, the waveform detection module detects the load voltage or current, attenuates it, and sends the data to the controller for judgment. The controller monitors the waveform for abnormalities in real time.

[0019] By controlling the on / off state of the high-voltage switch, the following two abnormal positive-phase pulse conditions can be determined: First, K1+ and K2- cannot close normally or the closing impedance is too high, resulting in abnormal positive-phase pulse; Second, when K2+ or K1- is turned off, the withstand voltage or insulation performance decreases, and the leakage current is too high, resulting in abnormal positive-phase pulse. During the detection process, as long as the waveform detection is normal, the normal waveform input can be maintained, which means that the cause of the waveform abnormality can be known, and the normal waveform output can be maintained.

[0020] When K1+, K1*, K2- and K2* are closed, a positive phase waveform is output. However, the waveform is abnormal at this time. By closing K3+, K3+ replaces K1+ and K1* and is electrically connected to electrode 1. Since K1+ is more likely to be abnormal, it can be directly determined that the abnormal waveform is caused by K1+ failing to close properly.

[0021] When K1+, K1*, K2- and K2* are closed, a positive phase waveform is output. However, the waveform is abnormal at this time. By closing K4-, K4- replaces K2- and K* and is electrically connected to electrode 2. Since K2- is more likely to be abnormal, it can be directly determined that K2- cannot be closed normally, which leads to the abnormal waveform.

[0022] When K1+, K1*, K2-, and K2* are closed, a positive phase waveform is output. K1+ and K2- have been checked and can be closed normally, but the waveform is abnormal at this time. Disconnect all high-voltage switches and close K3+, K2-, and K2*. The waveform detection module checks for abnormalities. By replacing K1- with K3+ and connecting it to electrode 1, the elimination method is used. If the waveform output is normal, it indicates that the withstand voltage or insulation performance of K1- has decreased.

[0023] When K1+, K1*, K2-, and K2* are closed, a positive phase waveform is output. K1+ and K2- have been checked and can be closed normally, but the waveform is abnormal at this time. Disconnect all high-voltage switches, disconnect K3+ and K2*, and close K1+, K1*, and K4-. The waveform detection module checks for abnormalities. By replacing K2+ with K4- and connecting it to electrode 2, the elimination method is used. If the waveform output is normal, it indicates that the withstand voltage or insulation performance of high-voltage switch K2+ has deteriorated.

[0024] The parallel connection of K1+, K2+, K3+, and K4+ enables multi-path redundancy. When one switch fails, the other switches can automatically switch in to maintain the output. K1* and K2* are common switches used for the on / off control of the electrode and the high-voltage switch group to prevent multiple switches from conducting simultaneously and causing a short circuit. Attached Figure Description

[0025] For ease of explanation, the present invention will be described in detail below with reference to specific embodiments and accompanying drawings.

[0026] Figure 1 This is a schematic diagram of the overall structure of a high-voltage pulse adaptive bipolar output system according to the present invention;

[0027] Figure 2 for Figure 1 Schematic diagram of the detection logic of the system;

[0028] Figure 3 for Figure 1A schematic diagram showing the closed high-voltage switches K1+, K2-, K1*, and K2* in the middle system, while the remaining high-voltage switches are open to output a positive pulse wave;

[0029] Figure 4 for Figure 1 A schematic diagram showing the closed high-voltage switches K1-, K2+, K1*, and K2* in the middle system, and the open high-voltage switches to output negative phase pulses.

[0030] Figure 5 for Figure 3 A schematic diagram of the system after K3+ is closed again;

[0031] Figure 6 for Figure 5 A schematic diagram of the system after K4- is closed;

[0032] Figure 7 for Figure 6 A schematic diagram showing the process after disconnecting all high-voltage switches and then closing K3+, K2-, and K2*;

[0033] Figure 8 for Figure 7 A schematic diagram showing the disconnection of K3+ and K2* and the closure of K1+, K1* and K4-. Detailed Implementation

[0034] like Figures 1-8 As shown, the present invention will be described in detail. For ease of description, the directions mentioned below are defined as follows: the directions of up, down, left, right, front, and back mentioned below are the same as... Figure 1 The projection relationship of the system is consistent in all directions (up, down, left, right, front, back). This invention provides a high-voltage pulse adaptive bipolar output system, comprising a pulse waveform input module, electrodes 1 and 2 connected to the load, a controller, and a waveform detection module. Multiple high-voltage switches, including K1+, K2+, K3+, K4+, K1-, K2-, K3-, K4-, K1*, and K2*, are connected between the pulse waveform input module and the load electrodes 1 and 2. The controller is electrically connected to K1+, K2+, K3+, K4+, K1-, K2-, K3-, K4-, K1*, and K2* to achieve on / off control, enabling the pulse circuit to output either a positive or negative phase waveform after receiving a positive phase waveform. The waveform detection module is electrically connected to the controller and the load. The waveform detection module detects and attenuates the load voltage or current, sending the data to the controller for judgment. The controller monitors the waveform for abnormalities in real time.

[0035] Advantageously, the waveform detection module includes an attenuation circuit that attenuates the high-voltage signal at the load end to a safe voltage range (e.g., 0-5V) that the controller can accept.

[0036] Beneficially, the controller presets a voltage or current threshold, and when the detected value exceeds the threshold, it is determined to be an abnormal waveform.

[0037] Advantageously, the high-voltage switch can be a high-voltage normally open relay, contactor, or thyristor, etc.

[0038] Advantageously, wherein K1+, K1* and electrode 1 are connected in series, K2+, K2* and electrode 2 are connected in series, K3+ and electrode 1 are connected in series, K4+ and electrode 2 are connected in series, K1-, K1* and electrode 1 are connected in series, K2-, K2* and electrode 2 are connected in series, K3- and electrode 1 are connected in series, K4- and electrode 2 are connected in series, K1+, K2+, K3+, K4+ are connected to the positive terminal of the pulse waveform input module, K1-, K2-, K3-, K4- are connected to the negative terminal of the pulse waveform input module, K1+, K2+, K3+, K4+ are connected in parallel, and K1-, K2-, K3-, K4- are connected in parallel.

[0039] Advantageously, when a positive phase pulse wave is input, the high-voltage switches K1+, K2-, K1*, and K2* are closed, and the remaining high-voltage switches are open, then a positive phase pulse is output between electrode 1 and electrode 2. When the high-voltage switches K1-, K2+, K1*, and K2* are closed, and the remaining high-voltage switches are open, then a negative phase pulse is output between electrode 1 and electrode 2. The waveform detection and controller can detect whether the waveform of the load is abnormal in real time.

[0040] Beneficially, the following two types of positive phase pulse abnormalities can be identified by controlling the on / off state of the high-voltage switch: First, K1+ and K2- cannot close normally or the closing impedance is too high, resulting in a positive phase pulse abnormality; Second, when K2+ or K1- is turned off, the withstand voltage or insulation performance decreases, and the leakage current is too high, resulting in a positive phase pulse abnormality.

[0041] Beneficially, when outputting a positive phase waveform, the following method can be used to detect the cause of waveform abnormalities and maintain normal output when the waveform detection is normal: First, disconnect all high-voltage switches, close K1+, K2-, K1*, and K2*, output a positive phase pulse, and the waveform detection module checks for abnormalities. If there are no abnormalities, maintain normal output; if there are abnormalities, proceed to the second step to determine the cause of the waveform detection abnormality. Second, if the waveform detection is abnormal in the first step, close K3+, and the waveform detection module checks for abnormalities. If the waveform output is normal, it indicates that K1+ cannot close properly; if the waveform output is abnormal, proceed to the third step. Third, if the waveform detection is abnormal in the second step, close K4- based on the first step, and the waveform detection module checks for abnormalities. If the waveform output is normal, it indicates that K1+ cannot close properly. If K2- fails to close properly, and the waveform output is abnormal, proceed to step four. In step four, disconnect all high-voltage switches, close K3+, K2-, and K2*, and check the waveform detection module for abnormalities. If the waveform output is normal, it indicates that the withstand voltage or insulation performance of K1- has decreased. If the waveform output is abnormal, proceed to step five. In step five, if the waveform detection is abnormal in step four, disconnect all high-voltage switches, disconnect K3+ and K2*, and close K1+, K1*, and K4-. Check the waveform detection module for abnormalities. If the waveform output is normal, it indicates that the withstand voltage or insulation performance of high-voltage switch K2+ has decreased.

[0042] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions conceived without creative effort should be included within the scope of protection of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A high voltage pulsed adaptive bipolar output system comprising a pulsed waveform input module, a load, an electrode 1 and an electrode 2 connected to the load, a controller and a waveform detection module, characterized in that, The pulse waveform input module is connected with a plurality of high-voltage switches between the load electrode 1 and the electrode 2, the controller is electrically connected with the high-voltage switches to realize on-off control, the pulse waveform input module outputs positive or negative phase waveforms after inputting positive phase waveforms, the waveform detection module is electrically connected with the controller and the load, the waveform detection module transmits voltage or current data to the controller, the controller monitors whether the waveform is abnormal in real time, and the controller controls the on-off combination of the high-voltage switches in real time according to the data of the waveform detection module; The high-voltage switch comprises K1+, K2+, K3+, K4+, K1-, K2-, K3- and K4-. The K1+, K1* and the electrode 1 are connected in series, the K2+, K2* and the electrode 2 are connected in series, the K3+ and the electrode 1 are connected in series, the K4+ and the electrode 2 are connected in series, the K1-, K1* and the electrode 1 are connected in series, the K2-, K2* and the electrode 2 are connected in series, the K3- and the electrode 1 are connected in series, the K4- and the electrode 2 are connected in series, the K1+, K2+, K3+ and K4+ are connected at the positive electrode end of the pulse waveform input module, the K1-, K2-, K3- and K4- are connected at the negative electrode end of the pulse waveform input module, and the K1+, K2+, K3+ and K4+ are arranged in parallel, and the K1-, K2-, K3- and K4- are arranged in parallel.

2. A high voltage pulsed adaptive bipolar output system as claimed in claim 1, characterized in that: The waveform detection module detects and attenuates the load voltage or current and sends the data to the controller for judgment, and the controller monitors whether the waveform is abnormal in real time.

3. A high voltage pulsed adaptive bipolar output system as claimed in claim 2, characterized in that: The high-voltage switch is a high-voltage normally open relay, a contactor or a thyristor.

4. The high voltage pulsed adaptive bipolar output system of claim 1, wherein: When a positive phase pulse wave is input, the high-voltage switches K1+, K2-, K1* and K2* are closed, the remaining high-voltage switches are opened, and then the positive phase pulse is output between the electrode 1 and the electrode 2; the high-voltage switches K1-, K2+, K1* and K2* are closed, the remaining high-voltage switches are opened, and then the negative phase pulse is output between the electrode 1 and the electrode 2.

5. A method for waveform detection, abnormality judgment and normal waveform output using the high-voltage pulse self-adaptive bipolar output system according to claim 1, characterized in that: In the first step, all the high-voltage switches are opened, the high-voltage switches K1+ and K2- are closed, the positive phase pulse is output, and the waveform detection module detects whether it is abnormal; if not, the normal output is maintained; if yes, the second step is started to determine the reason for the waveform detection abnormality. In the second step, when the waveform detection is abnormal in the first step, the high-voltage switch K3+ is closed, the waveform detection module detects whether it is abnormal, if the waveform output is normal, it is indicated that the high-voltage switch K1+ cannot be normally closed, if the waveform output is abnormal, the third step is performed; in the third step, when the waveform detection is abnormal in the second step, the high-voltage switch K4- is closed on the basis of the first step, the waveform detection module detects whether it is abnormal, if the waveform output is normal, it is indicated that the high-voltage switch K2- cannot be normally closed, if the waveform output is abnormal, the fourth step is performed; in the fourth step, all the high-voltage switches are opened, the high-voltage switches K3+ and K2- and K2* are closed, the waveform detection module detects whether it is abnormal, if the waveform output is normal, it is indicated that the high-voltage switch K1- has a decreased voltage resistance or insulation performance, if the waveform output is abnormal, the fifth step is performed. Fifth step, in the fourth step results in waveform detection abnormal, disconnect all high-voltage switch, disconnect K3+ and K2* and close K1+, K1* and K4-, waveform detection module detects whether abnormal, if the waveform output is normal, it is indicated that the high-voltage switch K2+ voltage or insulation performance decreases.

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