Digital low power consumption high-precision high voltage generator

A high-voltage generator, low-power technology, used in X-ray equipment, electrical components, etc., can solve the problems of high price, high power, and few high-voltage generators, and achieve improved stability, high reliability, and light weight. Effect
CN1937879AInactive Publication Date: 2007-03-28CHENGDU UNIVERSITY OF TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHENGDU UNIVERSITY OF TECHNOLOGY
Publication Date
2007-03-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

This invention relates to a technique based on DSP technology of digital low-power, high-precision and high voltage generator, including a high voltage generate circuit 1, steady voltage driving circuit regulators 2, DSP control system 3, current / voltage circuit sampling tube 4, and driven circuit 5. The high voltage circuit provides negative voltage for X-ray tubes, and produces current in the X-ray tubes. Current / voltage sampling circuit 4 samples the voltage / current which is provided to X-ray tube by high voltage circuit 1, and the sampling signal will be transmitted to the DSP control system 3. DSP control system samples the signals using the built-in 10 D synchronous analog-to-digital converter, analysis and processing. Converter Implementation of a high voltage output circuits have a negative high voltage X-ray tube and the current stability testing. Then PWM control signal wave will be output based on the test results, and put it on regulators driving circuit 2 and flow-driven circuit 5, and a closed-loop control circuit will be got, achieving the stability control of X-ray tube voltage and current.
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Description

technical field

[0001] The invention relates to a high-voltage power generating device, especially a digital low-power high-precision high-voltage generating device for a low-energy X-ray tube. Background technique

[0002] In recent years, low-energy X-ray tubes have been widely used in various fields due to their many advantages, especially they are often selected as artificial excitation sources for X-ray fluorescence analysis systems. When the influence of other links in the system is ignored, the analysis results are affected by factors such as non-human adjustment changes and stability of X-ray exposure. The X-ray tube needs a high-voltage generator to supply power. The stability of the voltage and current of the high-voltage generator directly determines the stability of the X-ray exposure, and indirectly affects the reliability and measurement accuracy of the final analysis results. That is to say, the high-voltage generator The performance of the device determines ...

Claims

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