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Switching power supply detection system used for medical electron linear accelerator

A linear accelerator, switching power supply technology, applied in the direction of power supply testing, etc., can solve the problems of reducing the complexity of replacing and debugging power supply, lack of intelligent adjustment, parameter memory, and lack of detection and alarm functions, so as to reduce the time of intelligent adjustment. , the effect of improving reliability and improving output accuracy

Active Publication Date: 2016-02-17
江苏海明医疗器械有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing switching power supply for accelerators does not have detection and alarm functions, and cannot output a fault signal in time when the power supply is abnormal, thereby helping users locate the fault and replace the switching power supply; it does not have functions such as intelligent adjustment and parameter memory, thereby reducing user Complexity of replacing and debugging power supplies

Method used

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  • Switching power supply detection system used for medical electron linear accelerator
  • Switching power supply detection system used for medical electron linear accelerator
  • Switching power supply detection system used for medical electron linear accelerator

Examples

Experimental program
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Effect test

Embodiment 1

[0025] The fault alarm process of the switching power supply detection system for accelerators is as follows: figure 2 shown. After the system is powered on, the current sensor continuously senses ampere-level high current into milliampere-level small current. The small current is converted into a voltage signal by the signal conditioning module, and then transmitted to the A / D conversion module after low-pass filtering. The microcontroller first initializes the peripherals and variables, then controls the A / D conversion module to sample once every 1ms, and uses the median average filter algorithm to filter out interference and obtain the final sampling value after sampling 25 times, and the microcontroller converts the sampling value into the corresponding Actual output current value. The initial state of the default power supply of the microcontroller is off, that is, there is no current output. When the switching power supply is started, the host of the accelerator send...

Embodiment 2

[0027] The intelligent adjustment and parameter memory process of the switching power supply detection system for accelerators is as follows: image 3 As shown, the foregoing steps after the system is powered on are the same as those in Embodiment 1. Still taking the magnetron magnet current as an example, assuming that the preset value is 32A, that is, the preset normal threshold range is (28.4, 35.6), the corrected range is (28.4, 31.964)∪(32.036, 35.6), and the precise range is ( 31.964, 32.036). If the actual output current value is 31.5A, which is within the correction range, the single-chip microcomputer determines that the power supply is not faulty, but the power output can be corrected. The single-chip microcomputer first queries the preset value and the correction value corresponding value table stored in the on-chip non-volatile memory, and queries the correction value corresponding to the preset value of the magnetron magnet power supply 32A. If the corresponding ...

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Abstract

The invention discloses a switching power supply detection system used for an accelerator. The switching power supply detection system comprises a current sensor, a signal conditioning module, an A / D conversion module, a single-chip microcomputer, a communication module and an alarm module. According to the system, the operation state and the parameters of a switching power supply can be detected and mastered in real time, and the abnormal state of the power supply can be timely fed back to the host of the accelerator by a fault alarm function; the deviation of the preset value and the actual value of the switching power supply is reduced by an intelligent adjusting function, and output precision of the power supply is enhanced without artificial participation so that reliability of the whole system is enhanced; and intelligent adjusting time of the switching power supply is further reduced by a parameter memory function so that response speed of the system is enhanced and the intelligent adjusting function is enabled to have more practical value.

Description

technical field [0001] The invention belongs to the technical field of a switching power supply detection system, and in particular relates to a switching power supply detection system for a medical electronic linear accelerator. Background technique [0002] Switching power supply is an important part of medical electron linear accelerator, and it is also the basis for its stable and reliable operation. The existing switching power supply for accelerators does not have detection and alarm functions, and cannot output a fault signal in time when the power supply is abnormal, thereby helping users locate the fault and replace the switching power supply; it does not have functions such as intelligent adjustment and parameter memory, thereby reducing user The complexity of replacing and debugging the power supply. Contents of the invention [0003] In view of this, the present invention provides a switching power supply detection system for a medical electronic linear accele...

Claims

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Application Information

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IPC IPC(8): G01R31/40
Inventor 钱倩云吴建兴刘曙光王小军沙亮陈璞
Owner 江苏海明医疗器械有限公司
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