High Voltage Pulse Modulating Power Source Alternate Group Triggering
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Solution Overview
Problem
Current solid-state pulse modulating power sources based on the MARX generator principle primarily support single-energy accelerators and cannot efficiently produce double (multiple)-voltage alternating pulses, limiting their application in dual-energy beam emitting electronic linear accelerators.
Innovation Solution
The implementation of alternate group triggering in a high voltage pulse modulating power source, where IGBT modules are divided into groups and triggered sequentially to achieve alternating high and low output voltages, allowing for dual or multiple voltage outputs by controlling the trigger signals and power supply to the modules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If all IGBT modules are triggered simultaneously in a solid-state pulse modulating power source based on MARX generator principle, then the power source can operate reliably with simple control, but it cannot produce double (multiple)-voltage alternating pulses required for dual-energy beam emitting accelerators
Solution Approach 1:
The patent divides the IGBT modules into multiple groups (at least two groups) that can be triggered independently. Each group corresponds to different voltage output levels, allowing the system to produce alternating high and low voltage pulses by selectively triggering different groups, thereby enabling dual-energy beam emitting capability
Solution Approach 2:
The patent implements dynamic control of the power source by using a time sequence control module that can dynamically switch between different triggering patterns for different IGBT groups, enabling the system to adaptively produce different voltage levels (high voltage, low voltage, or intermediate voltages) based on operational requirements
2Adaptability or versatility
If a solid-state pulse modulating power source is designed for single-energy accelerator application, then the device structure remains simple, but it lacks the capability to support dual-energy beam emitting accelerators requiring alternating dual-voltage output
Solution Approach 1:
The patent enhances the universality of the power source by enabling it to serve both single-energy and dual-energy accelerator applications. Through the alternate group triggering mechanism, the same power source can produce single-voltage output when all groups are triggered together, or alternating dual-voltage output when groups are triggered separately, making it compatible with both types of accelerators
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
Enables a single-energy accelerator to produce double (multiple)-voltage alternating outputs, enhancing the capability of solid-state pulse modulating power sources to support dual-energy beam emitting electronic linear accelerators with precise voltage control.
Implementation Method 1
a first group of triggers (1～n) to generate a first group of trigger signals Trig(1)～Trig(n), and controls a second group of triggers (n+1～m) not to generate trigger signals, so that a first group of IGBT modules (M1～Mn) corresponding to the first group of trigger signals Trig(1)～Trig(n) are triggered, while a second group of IGBT modules (Mn+1～Mm) corresponding to the second group of triggers n+1～m are not triggered
Implementation Method 2
The MARX generator can realize nanosecond narrow pulse and a very high pulse frequency. A MARX generator is a way of realizing a pulse modulating power source, and it is a device that is charged in parallel and then discharged in series using capacitance.
Data Source
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AI summary
The present invention provides a high voltage pulse modulating power source based on alternate group triggering, which comprises: a DC stabilized voltage source for supplying power to the high voltage pulse modulating power source; a plurality of solid-state switches; a plurality of triggers corresponding to said plurality of solid-state switches, wherein each trigger provides a trigger signal to its corresponding solid-state switch to turn on said corresponding solid-state switch, wherein said plurality of triggers are divided into at least two groups of triggers; a time sequence control module, which, at time t1, controls said plurality of triggers to generate trigger signals so as to turn on said plurality of solid-state switches simultaneously, and at time t2, controls one group of said at least two groups of triggers to generate trigger signals to turn on solid-state switches corresponding to this group of triggers, wherein time t1 and time t2 appear alternately.