Electrode switching device

Abstract

The utility model provides an electrode switching device. The electrode switching device comprises a controller, an H-bridge upper tube circuit, an H-bridge lower tube circuit and a solid-state relay, the controller is electrically connected with the solid-state relay; one end of the H-bridge upper tube circuit is connected with the first power supply, and the other end of the H-bridge upper tube circuit is electrically connected with the solid-state relay; one end of the H-bridge lower tube circuit is electrically connected with the H-bridge upper tube circuit, and the other end of the H-bridge lower tube circuit is grounded; the H-bridge upper tube circuit is switched on to switch a positive electrode, and the H-bridge lower tube circuit is switched on to switch a negative electrode; the controller is used for controlling on or off of the solid-state relay; and the solid-state relay is used for switching on or switching off the H-bridge upper tube circuit. The H-bridge upper tube circuit, the H-bridge lower tube circuit and the solid-state relay are integrated on one electrode switching device, the electrode switching device can be directly connected with a direct-current power supply, free switching of the positive electrode and the negative electrode is controlled, the manufacturing cost is low, and the universality of the electrode switching device is also improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of electrochemical organic synthesis, and in particular to an electrode switching device. Background Art

[0002] In the field of electrochemical organic synthesis, the market lacks devices with relay functionality that can be directly connected to existing DC power supplies, or devices that can adjust various waveform potentials. Even if such devices were available, they would be expensive, and adjusting the timing of electrode switching would be difficult. Consequently, there is a lack of universal, low-cost electrode switching equipment for electrochemical organic synthesis. Summary of the Invention

[0003] The technical problem to be solved by the present disclosure is to provide an electrode switching device to overcome the defect in the prior art of lacking a universal and relatively low-cost electrode switching device.

[0004] The present disclosure solves the above technical problems through the following technical solutions:

[0005] The present disclosure provides an electrode switching device, which includes: a controller, an H-bridge upper tube circuit, an H-bridge lower tube circuit, and a solid-state relay;

[0006] The controller is electrically connected to the solid-state relay;

[0007] One end of the H-bridge upper tube circuit is connected to the first power supply, and the other end of the H-bridge upper tube circuit is electrically connected to the solid-state relay; one end of the H-bridge lower tube circuit is electrically connected to the H-bridge upper tube circuit, and the other end of the H-bridge lower tube circuit is grounded;

[0008] The upper tube circuit of the H-bridge is turned on to switch the positive electrode, and the lower tube circuit of the H-bridge is turned on to switch the negative electrode;

[0009] The controller is used to control the opening or closing of the solid-state relay;

[0010] The solid-state relay is used to turn on or off the H-bridge upper tube circuit.

[0011] Preferably, the H-bridge upper tube circuit includes an H-bridge upper left tube and an H-bridge upper right tube, the solid-state relay includes a first solid-state relay and a second solid-state relay; the H-bridge upper left tube includes a first transistor and a first diode; the H-bridge upper right tube includes a second transistor and a second diode;

[0012] One end of the first solid-state relay is electrically connected to the collector of the first transistor, and the other end of the first solid-state relay is electrically connected to one end of the first diode; the other end of the first diode is connected to a first power supply;

[0013] One end of the second solid-state relay is electrically connected to the collector of the second transistor, and the other end of the second solid-state relay is electrically connected to one end of the second diode; the other end of the second diode is connected to the first power supply.

[0014] Preferably, the H-bridge lower tube circuit includes an H-bridge lower left tube and an H-bridge lower right tube; the H-bridge lower left tube includes a first MOS tube, a first resistor and a third diode; the H-bridge lower right tube includes a second MOS tube, a second resistor and a fourth diode;

[0015] The source of the first MOS transistor is electrically connected to the upper left transistor of the H-bridge and one end of the third diode respectively, and the drain of the first MOS transistor is electrically connected to the other end of the third diode; the other end of the third diode is connected to one end of the first resistor; and the other end of the first resistor is grounded;

[0016] The source of the second MOS transistor is electrically connected to the upper left transistor of the H-bridge and one end of the fourth diode respectively, and the drain of the second MOS transistor is electrically connected to the other end of the fourth diode; the other end of the fourth diode is connected to one end of the second resistor; and the other end of the second resistor is grounded.

[0017] Preferably, the electrode switching device further comprises a constant current circuit;

[0018] The constant current circuit is electrically connected to the H-bridge lower tube circuit;

[0019] The constant current circuit is used to stabilize the current when the electrodes are switched.

[0020] Preferably, the constant current circuit includes: a first capacitor, a first digital-to-analog converter, a third resistor, a first operational amplifier, a second capacitor, a third capacitor, a fourth resistor, a fifth resistor, a sixth resistor, a fourth capacitor, a second digital-to-analog converter, a seventh resistor, a second operational amplifier, a fifth capacitor, a sixth capacitor, an eighth resistor, a ninth resistor, and a tenth resistor;

[0021] One end of the first capacitor is grounded; the other end of the first capacitor is connected to the first digital-to-analog converter; the other end of the first digital-to-analog converter is connected to one end of the third resistor; the other end of the third resistor is connected to the positive input of the first operational amplifier; the negative input of the first operational amplifier is connected to one end of the third capacitor; the other end of the third capacitor is connected to the output of the first operational amplifier; the positive power supply port of the first operational amplifier is connected to one end of the second capacitor and the second power supply respectively; the other end of the second capacitor is grounded; one end of the third capacitor is also connected to one end of the fourth resistor; the other end of the fourth resistor is connected to one end of the first resistor; the other end of the third capacitor is also connected to one end of the fifth resistor; one end of the sixth resistor is respectively connected to the other end of the fifth resistor and the gate of the first MOS transistor; the other end of the sixth resistor is connected to the other end of the first resistor;

[0022] One end of the fourth capacitor is grounded; the other end of the fourth capacitor is connected to the second digital-to-analog converter; the other end of the second digital-to-analog converter is connected to one end of the seventh resistor; the other end of the seventh resistor is connected to the positive input of the second operational amplifier; the negative input of the second operational amplifier is connected to one end of the sixth capacitor; the other end of the sixth capacitor is connected to the output of the second operational amplifier; the positive power supply port of the second operational amplifier is respectively connected to one end of the fifth capacitor and the second power supply; the other end of the fifth capacitor is grounded; one end of the sixth capacitor is also connected to one end of the eighth resistor; the other end of the eighth resistor is connected to one end of the second resistor; the other end of the fifth capacitor is also connected to one end of the ninth resistor; one end of the tenth resistor is respectively connected to the other end of the ninth resistor and the gate of the second MOS tube; the other end of the tenth resistor is connected to the other end of the second resistor.

[0023] Preferably, the upper left tube of the H-bridge further includes an eleventh resistor, a twelfth resistor, and a thirteenth resistor; the upper right tube of the H-bridge further includes a fourteenth resistor, a fifteenth resistor, and a sixteenth resistor;

[0024] One end of the eleventh resistor is respectively connected to the base of the first transistor, one end of the twelfth resistor, and one end of the thirteenth resistor; the other end of the eleventh resistor is respectively connected to a third power supply and the emitter of the first transistor; the other end of the twelfth resistor is grounded;

[0025] One end of the fourteenth resistor is respectively connected to the base of the second transistor, one end of the fifteenth resistor and one end of the sixteenth resistor; the other end of the fourteenth resistor is respectively connected to the third power supply and the emitter of the second transistor; the other end of the fifteenth resistor is grounded.

[0026] Preferably, the solid-state relay is a photoelectric thyristor solid-state relay; the turn-on time of the photoelectric thyristor solid-state relay is less than 5 milliseconds, and the turn-off time is less than 1 millisecond.

[0027] Preferably, the electrode switching device further includes a collection module;

[0028] The acquisition module is used to acquire voltage information and current information of the electrode switching device; wherein the sampling accuracy of the voltage information is 15 millivolts, and the sampling accuracy of the current information is 2 milliamperes.

[0029] Preferably, the electrode switching device further comprises a display screen;

[0030] The display screen is electrically connected to the acquisition module;

[0031] The display screen is used to display the voltage information and the current information.

[0032] Preferably, the electrode switching device further includes an alarm;

[0033] The alarm is electrically connected to the controller;

[0034] The alarm is used to perform an alarm operation in response to an overcurrent or failure of the current switching device.

[0035] On the basis of conforming to the common sense in this field, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present disclosure.

[0036] The positive progress of this disclosure is:

[0037] The present invention integrates an H-bridge upper tube circuit, an H-bridge lower tube circuit and a solid-state relay into an electrode switching device, which can be directly connected to a DC power supply to control the free switching of positive and negative electrodes. It has a low production cost and improves the universality of the electrode switching device. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 A schematic structural diagram of an electrode switching device provided in Example 1 of the present disclosure;

[0039] Figure 2 This is an example circuit diagram of a solid-state relay and an H-bridge upper tube circuit of an electrode switching device provided in Example 1 of the present disclosure;

[0040] Figure 3 This is a circuit diagram of an H-bridge lower tube circuit and a constant current circuit of an electrode switching device provided in Example 1 of the present disclosure.

[0041] Description of the accompanying drawings: controller 1, H-bridge upper tube circuit 2, H-bridge lower tube circuit 3, solid-state relay 4, H-bridge upper left tube 21, H-bridge upper right tube 22, first solid-state relay 41, second solid-state relay 42, first transistor 211, first diode 212, second transistor 221, second diode 222, H-bridge lower left tube 31, H-bridge lower right tube 32, first MOS tube 311, first resistor 312, third diode 313, second MOS tube 321, second resistor 322, fourth diode 323, first capacitor 511, first digital-to-analog converter 5 12, the third resistor 513, the first operational amplifier 514, the second capacitor 515, the third capacitor 516, the fourth resistor 517, the fifth resistor 518, the sixth resistor 519, the fourth capacitor 521, the second digital-to-analog converter 522, the seventh resistor 523, the second operational amplifier 524, the fifth capacitor 525, the sixth capacitor 526, the eighth resistor 527, the ninth resistor 528, the tenth resistor 529, the eleventh resistor 213, the twelfth resistor 214, the thirteenth resistor 215, the fourteenth resistor 223, the fifteenth resistor 224, and the sixteenth resistor 225. DETAILED DESCRIPTION

[0042] The present disclosure is further illustrated below by way of examples, but the present disclosure is not limited to the scope of the examples.

[0043] In the embodiments of the present disclosure, prefixes such as "first" and "second" are used only to distinguish different description objects, and have no limiting effect on the position, order, priority, quantity or content of the described objects. In the embodiments of the present disclosure, the use of prefixes such as ordinal numbers to distinguish description objects does not constitute a limitation on the described objects. For the statement of the described objects, please refer to the description in the context of the claims or embodiments, and no unnecessary limitations should be constituted due to the use of such prefixes. In addition, in the description of this embodiment, unless otherwise specified, the meaning of "plurality" is two or more.

[0044] Example 1

[0045] This embodiment provides an electrode switching device, see Figure 1 The electrode switching device includes: a controller 1, an H-bridge upper tube circuit 2, an H-bridge lower tube circuit 3 and a solid-state relay 4.

[0046] In an optional embodiment, the solid-state relay 4 is a photoelectric thyristor solid-state relay 4. The photoelectric thyristor solid-state relay 4 has an on-time of less than 5 milliseconds and an off-time of less than 1 millisecond.

[0047] The controller 1 is electrically connected to the solid-state relay 4 .

[0048] One end of the H-bridge upper transistor circuit 2 is connected to a first power supply, and the other end of the H-bridge upper transistor circuit 2 is electrically connected to a solid-state relay 4. One end of the H-bridge lower transistor circuit 3 is electrically connected to the H-bridge upper transistor circuit 2, and the other end of the H-bridge lower transistor circuit 3 is grounded. In this embodiment, the first power supply can be set to 60 volts (V).

[0049] The upper tube circuit 2 of the H-bridge is turned on to switch the positive electrode, and the lower tube circuit 3 of the H-bridge is turned on to switch the negative electrode.

[0050] The controller 1 is used to control the solid-state relay 4 to be turned on or off.

[0051] The solid-state relay 4 is used to turn on or off the H-bridge upper tube circuit 2 .

[0052] In an optional embodiment, the H-bridge upper transistor circuit 2 includes an H-bridge upper left transistor 21 and an H-bridge upper right transistor 22, and the solid-state relay 4 includes a first solid-state relay 41 and a second solid-state relay 42. The H-bridge upper left transistor 21 includes a first transistor 211 and a first diode 212. The H-bridge upper right transistor 22 includes a second transistor 221 and a second diode 222.

[0053] One end of the first solid-state relay 41 is electrically connected to the collector of the first transistor 211, and the other end of the first solid-state relay 41 is electrically connected to one end of the first diode 212. The other end of the first diode 212 is connected to the first power supply.

[0054] One end of the second solid-state relay 42 is electrically connected to the collector of the second transistor 221, and the other end of the second solid-state relay 42 is electrically connected to one end of the second diode 222. The other end of the second diode 222 is connected to the first power supply.

[0055] In an optional embodiment, the upper left transistor 21 of the H-bridge further includes an eleventh resistor 213 , a twelfth resistor 214 , and a thirteenth resistor 215 . The upper right transistor 22 of the H-bridge further includes a fourteenth resistor 223 , a fifteenth resistor 224 , and a sixteenth resistor 225 .

[0056] One end of the eleventh resistor 213 is connected to the base of the first transistor 211, one end of the twelfth resistor 214, and one end of the thirteenth resistor 215. The other end of the eleventh resistor 213 is connected to the third power supply and the emitter of the first transistor 211. The other end of the twelfth resistor 214 is grounded.

[0057] The third power source is set to 3.3 volts (V) in this embodiment.

[0058] One end of the fourteenth resistor 223 is connected to the base of the second transistor 221, one end of the fifteenth resistor 224, and one end of the sixteenth resistor 225. The other end of the fourteenth resistor 223 is connected to the third power supply and the emitter of the second transistor 221. The other end of the fifteenth resistor 224 is grounded.

[0059] Figure 2 4 is an example circuit diagram of a solid-state relay 4 and an H-bridge upper tube circuit 2.

[0060] In an optional embodiment, the H-bridge lower transistor circuit 3 includes an H-bridge lower left transistor 31 and an H-bridge lower right transistor 32. The H-bridge lower left transistor 31 includes a first MOS transistor 311, a first resistor 312, and a third diode 313. The H-bridge lower right transistor 32 includes a second MOS transistor 321, a second resistor 322, and a fourth diode 323.

[0061] The source of the first MOS transistor 311 is electrically connected to the upper left transistor 21 of the H-bridge and one end of the third diode 313, respectively. The drain of the first MOS transistor 311 is electrically connected to the other end of the third diode 313. The other end of the third diode 313 is connected to one end of the first resistor 312. The other end of the first resistor 312 is grounded.

[0062] The source of the second MOS transistor 321 is electrically connected to the upper left transistor 21 of the H-bridge and one end of the fourth diode 323. The drain of the second MOS transistor 321 is electrically connected to the other end of the fourth diode 323. The other end of the fourth diode 323 is connected to one end of the second resistor 322. The other end of the second resistor 322 is grounded.

[0063] In an optional embodiment, the electrode switching device further includes a constant current circuit.

[0064] The constant current circuit is electrically connected to the H-bridge lower tube circuit 3 .

[0065] The constant current circuit is used to stabilize the current when the electrodes are switched.

[0066] In an optional embodiment, the constant current circuit includes: a first capacitor 511, a first digital-to-analog converter 512, a third resistor 513, a first operational amplifier 514, a second capacitor 515, a third capacitor 516, a fourth resistor 517, a fifth resistor 518, a sixth resistor 519, a fourth capacitor 521, a second digital-to-analog converter 522, a seventh resistor 523, a second operational amplifier 524, a fifth capacitor 525, a sixth capacitor 526, an eighth resistor 527, a ninth resistor 528, and a tenth resistor 529.

[0067] One end of the first capacitor 511 is grounded. The other end of the first capacitor 511 is connected to the first digital-to-analog converter 512. The other end of the first digital-to-analog converter 512 is connected to one end of the third resistor 513. The other end of the third resistor 513 is connected to the non-inverting input of the first operational amplifier 514. The negative input of the first operational amplifier 514 is connected to one end of the third capacitor 516. The other end of the third capacitor 516 is connected to the output of the first operational amplifier 514. The positive power supply port of the first operational amplifier 514 is connected to one end of the second capacitor 515 and the second power supply, respectively. The other end of the second capacitor 515 is grounded. One end of the third capacitor 516 is also connected to one end of the fourth resistor 517. The other end of the fourth resistor 517 is connected to one end of the first resistor 312. The other end of the third capacitor 516 is also connected to one end of the fifth resistor 518. One end of the sixth resistor 519 is connected to the other end of the fifth resistor 518 and the gate of the first MOS transistor 311, respectively. The other end of the sixth resistor 519 is connected to the other end of the first resistor 312.

[0068] In this embodiment, the second power supply can be set to 5 volts (V).

[0069] One end of the fourth capacitor 521 is grounded. The other end of the fourth capacitor 521 is connected to the second digital-to-analog converter 522. The other end of the second digital-to-analog converter 522 is connected to one end of the seventh resistor 523. The other end of the seventh resistor 523 is connected to the non-inverting input of the second operational amplifier 524. The negative input of the second operational amplifier 524 is connected to one end of the sixth capacitor 526. The other end of the sixth capacitor 526 is connected to the output of the second operational amplifier 524. The positive power supply port of the second operational amplifier 524 is connected to one end of the fifth capacitor 525 and the second power supply, respectively. The other end of the fifth capacitor 525 is grounded. One end of the sixth capacitor 526 is also connected to one end of the eighth resistor 527. The other end of the eighth resistor 527 is connected to one end of the second resistor 322. The other end of the fifth capacitor 525 is also connected to one end of the ninth resistor 528. One end of the tenth resistor 529 is respectively connected to the other end of the ninth resistor 528 and the gate of the second MOS transistor 321. The other end of the tenth resistor 529 is connected to the other end of the second resistor 322.

[0070] In this embodiment, the constant current circuit can prevent sudden current changes during the electrode switching process and prevent current changes caused by changes in electrolyte concentration during the electrolysis process. The constant current accuracy of this embodiment is 5 mA.

[0071] Figure 3 Schematic diagram of the H-bridge lower tube circuit 3 and the constant current circuit.

[0072] In summary, this embodiment integrates the H-bridge upper tube circuit, the H-bridge lower tube circuit and the solid-state relay into an electrode switching device, which can be directly connected to a DC power supply and control the free switching of positive and negative electrodes. It has low production cost and improves the universality of the electrode switching device.

[0073] In an optional embodiment, the electrode switching device further includes a collection module.

[0074] The acquisition module is used to collect voltage and current information of the electrode switching device. The sampling accuracy of the voltage information is 15 millivolts, and the sampling accuracy of the current information is 2 milliamperes.

[0075] In an optional embodiment, the electrode switching device further includes a display screen.

[0076] The display screen is electrically connected to the acquisition module.

[0077] The display is used to show voltage information and current information.

[0078] In this embodiment, the current information and voltage information during the electrode switching process can be clearly displayed by the acquisition module and the display screen, so as to facilitate real-time monitoring by the operator.

[0079] In an optional embodiment, the electrode switching device further includes an alarm.

[0080] The alarm is electrically connected to the controller 1 .

[0081] The alarm is used to perform an alarm operation in response to an overcurrent or failure of the current switching device.

[0082] In this embodiment, an alarm may be used to alert the operator that an overcurrent or failure has occurred in the current switching device.

[0083] While specific embodiments of the present disclosure have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of protection of the present disclosure is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present disclosure, and such changes and modifications are intended to fall within the scope of protection of the present disclosure.

Claims

1. An electrode switching device, characterized in that: The electrode switching device includes: a controller, an H-bridge upper tube circuit, an H-bridge lower tube circuit and a solid-state relay; The controller is electrically connected to the solid-state relay; One end of the H-bridge upper tube circuit is connected to the first power supply, and the other end of the H-bridge upper tube circuit is electrically connected to the solid-state relay; one end of the H-bridge lower tube circuit is electrically connected to the H-bridge upper tube circuit, and the other end of the H-bridge lower tube circuit is grounded; The upper tube circuit of the H-bridge is turned on to switch the positive electrode, and the lower tube circuit of the H-bridge is turned on to switch the negative electrode; The controller is used to control the opening or closing of the solid-state relay; The solid-state relay is used to turn on or off the H-bridge upper tube circuit.

2. The electrode switching device according to claim 1, wherein: The H-bridge upper tube circuit includes an H-bridge upper left tube and an H-bridge upper right tube, the solid-state relay includes a first solid-state relay and a second solid-state relay; the H-bridge upper left tube includes a first transistor and a first diode; the H-bridge upper right tube includes a second transistor and a second diode; One end of the first solid-state relay is electrically connected to the collector of the first transistor, and the other end of the first solid-state relay is electrically connected to one end of the first diode; the other end of the first diode is connected to a first power supply; One end of the second solid-state relay is electrically connected to the collector of the second transistor, and the other end of the second solid-state relay is electrically connected to one end of the second diode; the other end of the second diode is connected to the first power supply.

3. The electrode switching device according to claim 2, wherein: The H-bridge lower tube circuit includes an H-bridge lower left tube and an H-bridge lower right tube; the H-bridge lower left tube includes a first MOS tube, a first resistor and a third diode; the H-bridge lower right tube includes a second MOS tube, a second resistor and a fourth diode; The source of the first MOS transistor is electrically connected to the upper left transistor of the H-bridge and one end of the third diode respectively, and the drain of the first MOS transistor is electrically connected to the other end of the third diode; the other end of the third diode is connected to one end of the first resistor; and the other end of the first resistor is grounded; The source of the second MOS transistor is electrically connected to the upper left transistor of the H-bridge and one end of the fourth diode respectively, and the drain of the second MOS transistor is electrically connected to the other end of the fourth diode; the other end of the fourth diode is connected to one end of the second resistor; and the other end of the second resistor is grounded.

4. The electrode switching device according to claim 3, wherein: The electrode switching device further includes a constant current circuit; The constant current circuit is electrically connected to the H-bridge lower tube circuit; The constant current circuit is used to stabilize the current when the electrodes are switched.

5. The electrode switching device according to claim 4, wherein: The constant current circuit includes: a first capacitor, a first digital-to-analog converter, a third resistor, a first operational amplifier, a second capacitor, a third capacitor, a fourth resistor, a fifth resistor, a sixth resistor, a fourth capacitor, a second digital-to-analog converter, a seventh resistor, a second operational amplifier, a fifth capacitor, a sixth capacitor, an eighth resistor, a ninth resistor, and a tenth resistor; One end of the first capacitor is grounded; the other end of the first capacitor is connected to the first digital-to-analog converter; the other end of the first digital-to-analog converter is connected to one end of the third resistor; the other end of the third resistor is connected to the positive input of the first operational amplifier; the negative input of the first operational amplifier is connected to one end of the third capacitor; the other end of the third capacitor is connected to the output of the first operational amplifier; the positive power supply port of the first operational amplifier is connected to one end of the second capacitor and the second power supply respectively; the other end of the second capacitor is grounded; one end of the third capacitor is also connected to one end of the fourth resistor; the other end of the fourth resistor is connected to one end of the first resistor; the other end of the third capacitor is also connected to one end of the fifth resistor; one end of the sixth resistor is respectively connected to the other end of the fifth resistor and the gate of the first MOS transistor; the other end of the sixth resistor is connected to the other end of the first resistor; One end of the fourth capacitor is grounded; the other end of the fourth capacitor is connected to the second digital-to-analog converter; the other end of the second digital-to-analog converter is connected to one end of the seventh resistor; the other end of the seventh resistor is connected to the positive input of the second operational amplifier; the negative input of the second operational amplifier is connected to one end of the sixth capacitor; the other end of the sixth capacitor is connected to the output of the second operational amplifier; the positive power supply port of the second operational amplifier is respectively connected to one end of the fifth capacitor and the second power supply; the other end of the fifth capacitor is grounded; one end of the sixth capacitor is also connected to one end of the eighth resistor; the other end of the eighth resistor is connected to one end of the second resistor; the other end of the fifth capacitor is also connected to one end of the ninth resistor; one end of the tenth resistor is respectively connected to the other end of the ninth resistor and the gate of the second MOS tube; the other end of the tenth resistor is connected to the other end of the second resistor.

6. The electrode switching device according to claim 2, wherein: The upper left tube of the H-bridge further includes an eleventh resistor, a twelfth resistor, and a thirteenth resistor; the upper right tube of the H-bridge further includes a fourteenth resistor, a fifteenth resistor, and a sixteenth resistor; One end of the eleventh resistor is respectively connected to the base of the first transistor, one end of the twelfth resistor, and one end of the thirteenth resistor; the other end of the eleventh resistor is respectively connected to a third power supply and the emitter of the first transistor; the other end of the twelfth resistor is grounded; One end of the fourteenth resistor is respectively connected to the base of the second transistor, one end of the fifteenth resistor and one end of the sixteenth resistor; the other end of the fourteenth resistor is respectively connected to the third power supply and the emitter of the second transistor; the other end of the fifteenth resistor is grounded.

7. The electrode switching device according to claim 1, wherein: The solid-state relay is a photoelectric thyristor solid-state relay; the turn-on time of the photoelectric thyristor solid-state relay is less than 5 milliseconds, and the turn-off time is less than 1 millisecond.

8. The electrode switching device according to claim 1, wherein: The electrode switching device further includes an acquisition module; The acquisition module is used to acquire voltage information and current information of the electrode switching device; wherein the sampling accuracy of the voltage information is 15 millivolts, and the sampling accuracy of the current information is 2 milliamperes.

9. The electrode switching device according to claim 8, wherein: The electrode switching device also includes a display screen; The display screen is electrically connected to the acquisition module; The display screen is used to display the voltage information and the current information.

10. The electrode switching device according to claim 1, wherein: The electrode switching device also includes an alarm; The alarm is electrically connected to the controller; The alarm is used to perform an alarm operation in response to an overcurrent or failure of the current switching device.

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