CN216056822U

CN216056822U - Acceleration power supply applied to charged particle acceleration

Info

Publication number: CN216056822U
Application number: CN202122155308.1U
Authority: CN
Inventors: 史平君; 吴益善; 史鹏
Original assignee: Xi'an Siwei Electric Co ltd
Current assignee: Xi'an Siwei Electric Co ltd
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2022-03-15
Anticipated expiration: 2031-09-06

Abstract

The utility model relates to the technical field of electron accelerators, and discloses an accelerating power supply applied to charged particle acceleration, which is a direct current bus and mainly aims to input 28v of direct current power supply; the input filter circuit is connected with the direct current bus and is used for suppressing signals, interference and noise of other frequency bands; the synchronous voltage reduction circuit is connected with the input filter circuit and is used for reducing the voltage of the current; the high-frequency inverter bridge circuit is connected with the synchronous voltage reduction circuit and is used for converting current from direct current into alternating current; a step-up transformer; the accelerating power supply applied to the acceleration of the charged particles comprises a direct-current bus, an input filter circuit, a synchronous voltage reduction circuit, a high-frequency inverter bridge circuit, a booster transformer and a rectifying circuit, and is applied to the accelerating power supply applied to the acceleration of the charged particles, the required useful charged particles are directionally accelerated, and the requirement of the screen grid voltage of an accelerator is met.

Description

Acceleration power supply applied to charged particle acceleration

Technical Field

The utility model relates to the technical field of electron accelerators, in particular to an acceleration power supply applied to charged particle acceleration.

Background

Plasma (plasma), also known as plasma, is an ionized gaseous substance consisting of atoms deprived of part of electrons and positive and negative ions produced by ionization of radicals, a macroscopic electrically neutral ionized gas with dimensions greater than the debye length, whose motion is dominated mainly by electromagnetic forces and exhibits a pronounced collective behavior. It is widely present in the universe and is often considered to be the fourth state in which substances exist in addition to solids, liquids and gases. The plasma is a good electric conductor, and the plasma can be captured, moved and accelerated by utilizing a magnetic field which is skillfully designed. The development of plasma physics provides new technology and process for the further development of science such as materials, energy, information, environmental space, space physics, geophysical and the like.

With the development of scientific technology, the application and popularization of plasma technology, after plasma is generated, the required useful charged particles need to be directionally accelerated, and the method for accelerating the charged particles mainly uses an electric field acceleration method.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides the acceleration power supply applied to the acceleration of the charged particles, which has the advantage of directional acceleration and solves the problem of directional acceleration of the charged particles.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: an accelerating power supply for accelerating charged particles comprises

A dc bus for inputting a dc power supply of 28 v;

the input filter circuit is connected with the direct current bus and is used for suppressing signals, interference and noise of other frequency bands;

the synchronous voltage reduction circuit is connected with the input filter circuit and is used for reducing the voltage of the current;

the high-frequency inverter bridge circuit is connected with the synchronous voltage reduction circuit and is used for converting current from direct current into alternating current;

the step-up transformer is connected with the high-frequency inverter bridge circuit and is used for changing the voltage of alternating current;

a rectifier circuit connected to the step-up transformer, the voltage doubler rectifier circuit for converting current from alternating current to direct current, the rectifier circuit including a diode D1, a diode D2, a diode D3, and a diode D4;

the diode D1, the diode D2, the diode D3 and the diode D4 are connected with each other, and the rectifying circuit outputs current through the capacitor C2.

Preferably, the input filter circuit comprises an inductor L1 and a capacitor C3;

the inductor L1 is connected in parallel with the capacitor C3 with a node one therebetween.

Preferably, the synchronous buck circuit comprises a transistor Q1, a transistor Q3, an inductor L2 and a capacitor C4;

the transistor Q1 is connected to the transistor Q3, the inductor L2 is connected to the transistor Q1 and the transistor Q2, a node two is provided between the three, the capacitor C4 is connected to the inductor L2, and a node three is provided between the capacitor C4 and the inductor L2.

Preferably, the synchronous voltage reduction circuit outputs 2-20v adjustable current.

Preferably, the high-frequency inverter bridge circuit comprises a transistor Q2 and a transistor Q4;

the transistor Q2 is connected to the transistor Q4, the high frequency inverter bridge circuit outputs the signal through a capacitor C1, and a node four is arranged among the capacitor C1, the transistor Q2 and the transistor Q4.

Preferably, the step-up transformer comprises a transformer T1; the transformer T1 is connected to the capacitor C1.

(III) advantageous effects

Compared with the prior art, the utility model provides an accelerating power supply applied to charged particle acceleration, which has the following beneficial effects:

the accelerating power supply applied to the acceleration of the charged particles comprises a direct-current bus, an input filter circuit, a synchronous voltage reduction circuit, a high-frequency inverter bridge circuit, a booster transformer and a rectifying circuit, and is applied to the accelerating power supply applied to the acceleration of the charged particles, the required useful charged particles are directionally accelerated, and the requirement of the screen grid voltage of an accelerator is met.

Drawings

FIG. 1 is a schematic block diagram of the circuit of the present invention;

FIG. 2 is a circuit diagram of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In this example

An accelerating power supply for accelerating charged particles comprises

A dc bus for inputting a dc power supply of 28 v;

and the voltage doubling rectifying circuit is connected with the boosting transformer and is used for converting current from alternating current to direct current.

Referring to fig. 2, the input filter circuit includes an inductor L1 and a capacitor C3; the inductor L1 is connected in parallel with the capacitor C3 with a node one therebetween.

Referring to fig. 2, the synchronous buck circuit includes a transistor Q1, a transistor Q3, an inductor L2, and a capacitor C4; the transistor Q1 is connected with the transistor Q3, the inductance coil L2 is connected with the transistor Q1 and the transistor Q2, a node two is arranged among the three, the capacitor C4 is connected with the inductance coil L2, and a node three is arranged between the capacitor C4 and the inductance coil L2, and the synchronous buck circuit outputs 2-20v adjustable current.

Referring to fig. 2, the high frequency inverter bridge circuit includes a transistor Q2 and a transistor Q4; the transistor Q2 is connected with the transistor Q4, the high-frequency inverter bridge circuit outputs through a capacitor C1, a node four is arranged among the capacitor C1, the transistor Q2 and the transistor Q4, and the boosting transformer comprises a T1; the transformer T1 is connected with the capacitor C1

The working principle is as follows: 28V DC power is input into a V1 DC bus, the DC power is input into a synchronous buck circuit consisting of a transistor Q1, a transistor Q3, an inductance coil L2 and a capacitor C4 after passing through an input filter network consisting of an inductance coil L1 and a capacitor C3, the output voltage of the synchronous buck circuit is 2-20V adjustable, the output of the synchronous buck circuit is sent to a high-frequency inverter bridge consisting of a transistor Q2 and a transistor Q4 for power supply, the rated working frequency of the inverter bridge is 50KHz, the output of the high-frequency inverter bridge is supplied to a step-up transformer T1 through a capacitor C1, the maximum voltage output by the step-up transformer T1 is AC 400V, a full-bridge rectifier consisting of a diode D1, a diode D2, a diode D3 and a diode D4, and the capacitor C2 is an output filter capacitor which can finally output acceleration voltage of +400V, after rectification and filtering, some current and voltage are extracted for detection, and a Micro Control Unit (MCU) is used for carrying out Pulse Width Modulation (PWM) on the synchronous voltage reduction and reduction circuit.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An accelerating power supply applied to charged particle acceleration is characterized in that: comprises that

A dc bus for inputting a dc power supply of 28 v;

a rectifying circuit connected to the step-up transformer, the rectifying circuit for converting a current from an alternating current to a direct current, the rectifying circuit including a diode D1, a diode D2, a diode D3, and a diode D4;

2. An accelerating power supply for charged particle acceleration as set forth in claim 1, wherein: the input filter circuit comprises an inductance coil L1 and a capacitor C3;

3. An accelerating power supply for charged particle acceleration as set forth in claim 1, wherein: the synchronous buck circuit comprises a transistor Q1, a transistor Q3, an inductor L2 and a capacitor C4;

4. An accelerating power supply for charged particle acceleration as set forth in claim 1, wherein: the synchronous voltage reduction circuit outputs 2-20v of adjustable current.

5. An accelerating power supply for charged particle acceleration as set forth in claim 1, wherein: the high-frequency inverter bridge circuit comprises a transistor Q2 and a transistor Q4;

6. An accelerating power supply for charged particle acceleration as set forth in claim 1, wherein: the step-up transformer includes T1.