Bipolar pulse power supply

Abstract

The invention belongs to the field of pulse power supplies, and particularly relates to a bipolar pulse power supply. Comprising a power supply module, a charging switch module, a voltage transformation module, a capacitor energy storage module and a discharging switch module, the power supply module is used for providing electric energy and transmitting the electric energy to the charging switch module; the charging switch module is used for inverting electric energy voltage into high-frequency square waves through an alternate conduction method and transmitting the high-frequency square waves to the voltage transformation module; the voltage transformation module boosts the high-frequency square wave and transmits the boosted high-frequency square wave to the capacitance energy storage module; the capacitor energy storage module is charged according to the input boosted high-frequency square wave; and the capacitance energy storage module is also used for transmitting the boosted high-frequency square wave positive pulse and the boosted high-frequency square wave negative pulse to a load through the discharge switch module. The problems of low integration degree and unstable output of a bipolar pulse power supply in the prior art can be solved.

Description

Technical Field

[0001] The present application belongs to the field of pulse power supplies, and specifically relates to a bipolar pulse power supply. Background Art

[0002] A bipolar pulse power supply is a power supply device that can output alternating positive and negative pulse voltages and has multiple functions and application scenarios. A bipolar pulse power supply can achieve precise control of pulse parameters, release high energy in a short period of time, and has a fast response speed. High-voltage pulse power supplies mostly use a capacitor energy storage method with a stable discharge waveform, good controllability, and is suitable for capacitive or high-impedance loads. Existing pulse power supply systems are generally composed of a primary power supply, an intermediate energy storage link, and a pulse forming system. They have a low degree of integration and unstable output. Summary of the invention

[0003] In order to solve the problems of low integration and unstable output of bipolar pulse power supply in the prior art, a bipolar pulse power supply is proposed;

[0004] A bipolar pulse power supply, comprising a power supply module, a charging switch module, a voltage transformation module, a capacitor energy storage module and a discharge switch module;

[0005] The power supply module is used to provide electric energy and transmit the electric energy to the charging switch module; the charging switch module is used to invert the electric energy voltage into a high-frequency square wave by alternating conduction, and transmit the high-frequency square wave to the transformer module; the transformer module boosts the high-frequency square wave and transmits the boosted high-frequency square wave to the capacitor energy storage module; the capacitor energy storage module is charged according to the input boosted high-frequency square wave; the capacitor energy storage module is also used to transmit the boosted high-frequency square wave positive pulse and the boosted high-frequency square wave negative pulse to the load through the discharge switch module.

[0006] Beneficial Effects

[0007] Compared with the prior art, a bipolar pulse power supply of the present application can realize the stable transmission of high-frequency square wave positive pulses and high-frequency square wave negative pulses; a bipolar pulse power supply of the present application includes a power supply module, a charging switch module, a transformer module, a capacitor energy storage module and a discharge switch module; the bipolar pulse power supply has a high overall integration, thereby being able to reduce the volume and weight of the bipolar power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 A bipolar pulse power supply structure diagram for a specific implementation of this application;

[0009] Figure 2 This is a circuit diagram of a capacitor energy storage unit according to a specific implementation of the present application. DETAILED DESCRIPTION

[0010] Specific implementation method 1: The following will be combined with the attached embodiment of the present invention Figure 1 To Attachment Figure 2 , illustrate this implementation mode, and clearly and completely describe the technical solutions in the embodiments of the present invention:

[0011] A bipolar pulse power supply, comprising a power supply module, a charging switch module, a voltage transformation module, a capacitor energy storage module and a discharge switch module;

[0012] The power supply module is used to provide electric energy and transmit the electric energy to the charging switch module; the charging switch module is used to invert the electric energy voltage into a high-frequency square wave by alternating conduction, and transmit the high-frequency square wave to the transformer module; the transformer module boosts the high-frequency square wave and transmits the boosted high-frequency square wave to the capacitor energy storage module; the capacitor energy storage module is charged according to the input boosted high-frequency square wave; the capacitor energy storage module is also used to transmit the boosted high-frequency square wave positive pulse and the boosted high-frequency square wave negative pulse to the load through the discharge switch module.

[0013] Specifically, the bipolar pulse power supply of the present application can charge the capacitor energy storage module through the power module, and the capacitor energy storage module outputs a boosted high-frequency square wave positive pulse and a boosted high-frequency square wave negative pulse to the load; the degree of integration is high and the output is stable.

[0014] Furthermore, the charging switch module includes a first charging switch unit and a second charging switch unit.

[0015] The first charging switch unit is connected in parallel with the second charging switch unit; the first charging switch unit and the second charging switch unit are used to invert the electric energy voltage provided by the power supply module into a high-frequency square wave by alternating conduction, and transmit the high-frequency square wave to the transformer module;

[0016] The first charging switch unit includes a first charging switch and a second charging switch, and the second charging switch unit includes a third charging switch and a fourth charging switch; one end of the first charging switch is connected to one end of the power module, and the other end of the first charging switch is respectively connected to one end of the second charging switch and one end of the transformer module; one end of the third charging switch is connected to one end of the power module, and the other end of the third charging switch is respectively connected to one end of the fourth charging switch and the other end of the transformer module.

[0017] Further, the voltage transformation module includes N transformers, and the capacitor energy storage module includes N capacitor energy storage units;

[0018] The i-th transformer is used to boost the high-frequency square wave input by the charging switch module, and transmit the boosted high-frequency square wave to the i-th capacitor energy storage unit; the i-th capacitor energy storage unit is used to charge according to the boosted high-frequency square wave, and the i-th capacitor energy storage unit is also used to transmit the boosted high-frequency square wave positive pulse and the boosted high-frequency square wave negative pulse to the load through the discharge switch module;

[0019] One end of the primary side of the first transformer is connected to the other end of the first charging switch, and the other end of the primary side of the Nth transformer is connected to the other end of the third charging switch; one end of the primary side of the i-th transformer is connected to the other end of the primary side of the i-1th transformer; one end of the secondary side of the i-th transformer is connected to the second connection end of the i-th capacitor energy storage unit, and the other end of the secondary side of the i-th transformer is connected to the third connection end of the i-th capacitor energy storage unit;

[0020] The first end of the first capacitor energy storage unit is connected to one end of the discharge switch module, and the fourth connection end of the Nth capacitor energy storage unit is respectively connected to the other end of the discharge switch module and the ground; the first connection end of the i-th capacitor energy storage unit is connected to the fourth connection end of the i-1-th capacitor energy storage unit, i∈[2,3,4,···,N].

[0021] Furthermore, each capacitor energy storage unit includes: a single-phase rectifier bridge module, a capacitor, a first switch tube and a second switch tube;

[0022] One end of the AC side of the single-phase rectifier module serves as the second connection end of the capacitor energy storage unit; the other end of the AC side of the single-phase rectifier module serves as the third connection end of the capacitor energy storage unit; one end of the DC side of the single-phase rectifier module is respectively connected to one end of the capacitor and the drain of the second switch tube as the fourth connection end of the capacitor energy storage unit; the other end of the DC side of the single-phase rectifier module is respectively connected to the other end of the capacitor and the source of the first switch tube, and the drain of the first switch tube is connected to the source of the second switch tube, as the first connection end of the capacitor energy storage unit.

[0023] Furthermore, the discharge switch module includes a first discharge switch unit and a second discharge switch unit; the first discharge switch unit is used to transmit the boosted high-frequency square wave positive pulse to the load, and the second discharge switch unit is used to transmit the boosted high-frequency square wave negative pulse to the load;

[0024] One end of the first discharge switching module and one end of the second discharge switch unit are connected to the first connection end of the first capacitor energy storage unit, the other end of the first discharge switching module and the other end of the second discharge switch unit are connected to one end of the load, the other end of the first discharge switching module and the other end of the second discharge switch unit are also connected to the fourth connection end of the Nth capacitor energy storage unit, and the other end of the load is connected to the ground.

[0025] Furthermore, the power supply module includes a current limiting resistor and an adjustable DC power supply; one end of the current limiting resistor is respectively connected to one end of the first charging switch and one end of the third charging switch, the other end of the current limiting resistor is connected to the positive electrode of the adjustable DC power supply, and the negative electrode of the adjustable DC power supply is respectively connected to the other end of the second charging switch and the other end of the fourth charging switch.

[0026] Furthermore, the transformer is a high frequency transformer.

[0027] Further, the first discharge switch unit and the second discharge switch unit respectively include a plurality of oxygen half field effect transistors connected in series.

[0028] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the various dependent claims and features described herein may be combined in a manner different from that described in the original claims. It should also be understood that features described in conjunction with individual embodiments may be used in other described embodiments.

Claims

1. A bipolar pulse power supply, characterized in that: Including power supply module, charging switch module, voltage transformation module, capacitor energy storage module and discharge switch module; The power supply module is used to provide electric energy and transmit the electric energy to the charging switch module; the charging switch module is used to invert the electric energy voltage into a high-frequency square wave by an alternating conduction method, and transmit the high-frequency square wave to the transformer module; the transformer module boosts the high-frequency square wave and transmits the boosted high-frequency square wave to the capacitor energy storage module; The capacitor energy storage module is charged according to the input high-frequency square wave after voltage boost; the capacitor energy storage module is also used to transmit the high-frequency square wave positive pulse after voltage boost and the high-frequency square wave negative pulse after voltage boost to the load through the discharge switch module.

2. A bipolar pulse power supply according to claim 1, characterized in that: The charging switch module includes a first charging switch unit and a second charging switch unit. The first charging switch unit is connected in parallel with the second charging switch unit; the first charging switch unit and the second charging switch unit are used to invert the electric energy voltage provided by the power supply module into a high-frequency square wave by alternating conduction, and transmit the high-frequency square wave to the transformer module; The first charging switch unit includes a first charging switch and a second charging switch, and the second charging switch unit includes a third charging switch and a fourth charging switch; one end of the first charging switch is connected to one end of the power module, and the other end of the first charging switch is respectively connected to one end of the second charging switch and one end of the transformer module; one end of the third charging switch is connected to one end of the power module, and the other end of the third charging switch is respectively connected to one end of the fourth charging switch and the other end of the transformer module.

3. A bipolar pulse power supply according to claim 2, characterized in that: The voltage transformation module includes N transformers, and the capacitor energy storage module includes N capacitor energy storage units; The i-th transformer is used to boost the high-frequency square wave input by the charging switch module, and transmit the boosted high-frequency square wave to the i-th capacitor energy storage unit; the i-th capacitor energy storage unit is used to charge according to the boosted high-frequency square wave, and the i-th capacitor energy storage unit is also used to transmit the boosted high-frequency square wave positive pulse and the boosted high-frequency square wave negative pulse to the load through the discharge switch module; One end of the primary side of the first transformer is connected to the other end of the first charging switch, and the other end of the primary side of the Nth transformer is connected to the other end of the third charging switch; one end of the primary side of the i-th transformer is connected to the other end of the primary side of the i-1th transformer; one end of the secondary side of the i-th transformer is connected to the second connection end of the i-th capacitor energy storage unit, and the other end of the secondary side of the i-th transformer is connected to the third connection end of the i-th capacitor energy storage unit; The first end of the first capacitor energy storage unit is connected to one end of the discharge switch module, and the fourth connection end of the Nth capacitor energy storage unit is respectively connected to the other end of the discharge switch module and the ground; the first connection end of the i-th capacitor energy storage unit is connected to the fourth connection end of the i-1-th capacitor energy storage unit, i∈[2,3,4,···,N].

4. A bipolar pulse power supply according to claim 3, characterized in that: Each capacitor energy storage unit includes: a single-phase rectifier bridge module, a capacitor, a first switch tube and a second switch tube; One end of the AC side of the single-phase rectifier module serves as the second connection end of the capacitor energy storage unit; the other end of the AC side of the single-phase rectifier module serves as the third connection end of the capacitor energy storage unit; one end of the DC side of the single-phase rectifier module is respectively connected to one end of the capacitor and the drain of the second switch tube as the fourth connection end of the capacitor energy storage unit; the other end of the DC side of the single-phase rectifier module is respectively connected to the other end of the capacitor and the source of the first switch tube, and the drain of the first switch tube is connected to the source of the second switch tube, as the first connection end of the capacitor energy storage unit.

5. A bipolar pulse power supply according to claim 4, characterized in that: The discharge switch module includes a first discharge switch unit and a second discharge switch unit; the first discharge switch unit is used to transmit the boosted high-frequency square wave positive pulse to the load, and the second discharge switch unit is used to transmit the boosted high-frequency square wave negative pulse to the load; One end of the first discharge switching module and one end of the second discharge switch unit are connected to the first connection end of the first capacitor energy storage unit, the other end of the first discharge switching module and the other end of the second discharge switch unit are connected to one end of the load, the other end of the first discharge switching module and the other end of the second discharge switch unit are also connected to the fourth connection end of the Nth capacitor energy storage unit, and the other end of the load is connected to the ground.

6. A bipolar pulse power supply according to claim 5, characterized in that: The power supply module includes a current limiting resistor and an adjustable DC power supply; one end of the current limiting resistor is respectively connected to one end of the first charging switch and one end of the third charging switch, the other end of the current limiting resistor is connected to the positive electrode of the adjustable DC power supply, and the negative electrode of the adjustable DC power supply is respectively connected to the other end of the second charging switch and the other end of the fourth charging switch.

7. A bipolar pulse power supply according to claim 3, characterized in that: The transformer is a high frequency transformer.

8. A bipolar pulse power supply according to claim 5, characterized in that: The first discharge switch unit and the second discharge switch unit respectively include a plurality of oxygen half field effect transistors connected in series.

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