Pulsed Power Amplification Module for Low-Jitter Gas Switch Triggering

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Solution Overview

Problem

Existing high-power pulse generation devices suffer from high electric breakdown and abnormal discharge probabilities, low reliability, large delay time jitter, and slow rise times due to the use of gas switches in amplifying media, leading to insufficient reliability of the final pulse output.

Innovation Solution

A method involving the joint action of a light amplification by stimulated emission of radiation mode of a crystal medium, a carrier multiplication amplification mode of a semiconductor medium, and a plasma breakdown amplification mode of a gas medium, combined with a photoelectric conversion and amplification device, to generate precise timing-synchronized high-power electric pulses.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If gas switch is used in existing high-power pulse generation device, then power amplification can be achieved, but electric breakdown and abnormal discharge probability increases and reliability decreases

Engineering Contradiction:
Improvepower amplificationVSAvoidreliability
Core Design Contradiction:
PowerVSReliability

Solution Approach 1:

The patent divides the power amplification process into multiple stages: a first gas switch for initial power amplification and a second gas switch for further amplification. Each switch operates at different power levels and timing, segmenting the overall amplification process to reduce the burden on individual switches and improve reliability

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The first gas switch performs preliminary power amplification before the second gas switch operates. By pre-amplifying the pulse power in a controlled manner, the system prepares the electrical conditions for the final high-power output, reducing the risk of abnormal discharge in the second switch

Inventive Principle:
Principle #10Preliminary action

2Power

If gas switch is used in existing high-power pulse generation device, then power amplification can be achieved, but delay time jitter increases

Engineering Contradiction:
Improvepower amplificationVSAvoiddelay time jitter
Core Design Contradiction:
PowerVSLoss of time

Solution Approach 1:

The patent employs feedback control mechanisms where the timing and operation of the second gas switch are controlled based on the actual performance and timing of the first gas switch. This feedback loop compensates for timing variations and reduces delay time jitter in the final output

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent replaces traditional mechanical or simple electrical triggering mechanisms with a more sophisticated control system that uses electrical field modulation and coordinated switching. This substitution allows for more precise timing control and reduced jitter

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Power

If gas switch is used in existing high-power pulse generation device, then power amplification can be achieved, but rise time of outputted current becomes slow

Engineering Contradiction:
Improvepower amplificationVSAvoidrise time
Core Design Contradiction:
PowerVSSpeed

Solution Approach 1:

The patent uses dynamic control of the switching process where the second gas switch is triggered at an optimized moment after the first switch operates. The timing and duration of each switch operation are dynamically adjusted to achieve the fastest possible current rise time while maintaining power amplification

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes key parameters such as switching timing, pulse duration, and electrical field strength to optimize the rise time. By carefully controlling when each gas switch operates and for how long, the system achieves faster current rise times compared to single-switch configurations

Inventive Principle:
Principle #35Parameter changes

4Power

If gas switch is used in existing high-power pulse generation device, then power amplification can be achieved, but volume of standard discharge module increases

Engineering Contradiction:
Improvepower amplificationVSAvoidvolume of standard discharge module
Core Design Contradiction:
PowerVSVolume of stationary object

Solution Approach 1:

The patent implements a nested configuration where the first and second gas switches are arranged in a compact, space-efficient manner. The switches and their associated circuitry are nested within each other or arranged in a hierarchical structure that minimizes the overall volume of the discharge module while maintaining the required power amplification capability

Inventive Principle:
Principle #7Nested doll (Nesting)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The method achieves rapid triggering of gas switches with reduced delay time jitter and improved reliability, allowing for the generation of multiple timing-synchronized high-power electric pulses with enhanced power density and reduced device volume and inductance.

Implementation Method 1

amplifying an inputted electric power signal by means of a carrier multiplication amplification mode

Methodology Applied
Scientific EffectCarrier multiplication: Avalanche Breakdown

Implementation Method 2

a light amplification by stimulated emission of radiation mode of a crystal medium

Methodology Applied
Scientific EffectLight amplification by stimulated emission of radiation: Laser

Implementation Method 3

converting the laser signal into an electric signal by using a photoelectric conversion and amplification device

Methodology Applied
Scientific EffectPhotoelectric conversion: Photoelectric Effect

Implementation Method 4

a plasma breakdown amplification mode of a gas medium

Methodology Applied
Scientific EffectPlasma breakdown: Plasma

Data Source

PatentUS20250219598A1Method and standard module for amplifying pulsed power
Publication Date: 2025.07.03 INST OF FLUID PHYSICS CHINA ACAD OF ENG PHYSICS
  • US20250219598A1 patent drawing
  • US20250219598A1 patent drawing
  • US20250219598A1 patent drawing

AI summary

Disclosed is a method and standard module for amplifying pulsed power. The key point of the technical solution is as follows: a method for amplifying pulsed power is formed by means of the joint action of a LASER mode of a crystal medium, a carrier multiplication amplification mode of a semiconductor medium, and a plasma breakdown amplification mode of a gas medium. Electric power which is amplified is converted into optical power first, the optical power is amplified again, and the amplified optical power is converted into electric power again by a photoelectric conversion and amplification device. A gas switch is triggered based on a photoconductive switch to generate a timing-synchronized high-power electric pulse. The high-power electric pulse may be directly outputted or distributed in multiple channels to obtain multiple timing-synchronized trigger signals. In combination with pulse charge of a capacitor, multiple timing-synchronized high-power electric pulses are outputted.