X-ray Voltage Generator Circuit Segmentation
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Solution Overview
Problem
Conventional voltage generating apparatuses for X-ray systems are prone to malfunctions due to damage to internal circuit components, leading to unintended X-ray irradiation and inspection errors.
Innovation Solution
A voltage generating apparatus that includes a console to detect an X-ray irradiation signal and generate a control signal, a pulse control unit to generate a pulse signal based on the control and detection signals, and a high voltage generating unit to produce a high voltage for the X-ray tube, thereby preventing malfunctions caused by component damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional voltage generating apparatus is used, then the device can generate high voltage for X-ray tube operation, but the internal circuit components may be damaged and short-circuited with ground terminal causing unintended X-ray irradiation
Solution Approach 1:
The voltage generating apparatus is divided into functionally independent sections: a console that generates control signals, a pulse control unit that generates pulse signals based on both control and detection signals, and a high voltage generating unit. This segmentation isolates the detection signal path from the control signal path, preventing ground short-circuiting from causing unintended X-ray irradiation.
Solution Approach 2:
A detection signal is introduced as an intermediary between the X-ray irradiation switch and the pulse signal generation. The pulse control unit requires both the control signal and the detection signal to be at high levels before generating a pulse signal, creating an additional safety layer that prevents malfunction even if control components are damaged.
2Productivity
If pulse width modulation scheme is used, then higher performance and miniaturization are achieved, but the risk of component damage and unintended X-ray generation increases
Solution Approach 1:
The detection signal is generated in advance by detecting the X-ray irradiation signal at the console, before the pulse signal is generated. This preliminary detection ensures that the pulse control unit has advance knowledge of the intended irradiation command and can verify it against the control signal, preventing unintended operation due to component damage.
Solution Approach 2:
The detection signal provides feedback about the X-ray irradiation switch state to the pulse control unit. This feedback mechanism allows the system to verify that the control signal corresponds to a legitimate irradiation command, preventing malfunction from causing unintended X-ray generation while maintaining PWM performance.
Data Source
AI summary
The present inventive concept provides a voltage generating apparatus for X-rays including a console that receives an X-ray irradiation signal to generate a control signal and detects the X-ray irradiation signal to generate a first detection signal, a pulse control unit that receives the control signal and the first detection signal from the console to generate a second detection signal and generates a pulse signal according to the control signal and the second detection signal, and a high voltage generating unit that generates a high voltage according to the pulse signal from the pulse control unit, and an X-ray generating apparatus having the same.