Bipolar Voltage Multiplier for X-Ray Sources
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Solution Overview
Problem
Existing x-ray sources face challenges with heavy and expensive electrical insulation for voltage isolation, particularly in portable devices, and are prone to arcing failures due to high-voltage components.
Innovation Solution
The design incorporates a bipolar voltage multiplier with a negative and positive voltage multiplier, where the angle between their output axes is optimized to reduce voltage gradient, allowing for less insulation and minimizing arcing failures, featuring a curved path for electronic components and potential co-location on a single circuit board.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If heavy electrical insulation is used for voltage isolation, then voltage differential isolation is improved, but device weight increases
Solution Approach 1:
The patent changes the geometric parameter of the voltage multiplier circuit by optimizing the angle between positive and negative voltage output axes. This parameter change reduces the voltage gradient in the insulation path, allowing for reduced insulation thickness while maintaining the same voltage isolation reliability, thereby reducing device weight.
2Reliability
If heavy electrical insulation is used for voltage isolation, then voltage differential isolation is improved, but device size increases
Solution Approach 1:
By optimizing the spatial arrangement parameter (angle between voltage axes) of the bipolar voltage multiplier, the patent reduces the required insulation distance while maintaining voltage isolation effectiveness, thereby reducing device volume for portable applications.
3Power
If traditional voltage multiplier configuration is used, then voltage generation is achieved, but voltage gradient is high causing arcing
Solution Approach 1:
The patent optimizes the geometric parameter of the voltage multiplier by adjusting the angle between the positive and negative voltage output axes to a specific range (5°≤A1≤170°). This parameter optimization reduces the voltage gradient across insulation surfaces, minimizing the conditions that lead to arcing and improving reliability.
Solution Approach 2:
The patent employs asymmetric arrangement of the bipolar voltage multiplier components, where the positive and negative voltage axes are deliberately positioned at optimized angles relative to each other rather than in symmetric opposition. This asymmetric configuration reduces voltage gradient concentration and prevents arcing failures.
Data Source
AI summary
An x-ray source can have a reduced voltage gradient and a consistent voltage gradient, thus allowing less insulation, reduced arcing failure, or both. The x-ray source can comprise a bipolar voltage multiplier and an x-ray tube. The bipolar voltage multiplier can include a negative voltage multiplier and a positive voltage multiplier. An axis extending from an input voltage of the negative voltage multiplier to a negative output bias voltage defines a negative axis. An axis extending from an input voltage of the positive voltage multiplier to a positive output bias voltage defines a positive axis. An angle A1 between the negative axis and the positive axis can be selected for optimal voltage gradient.