Medical diagnosis X radial high-frequency and high-voltage generator based on dual-bed and dual-tube

Abstract

The invention discloses a two-bed duplex tube medical diagnosis X-ray high frequency high voltage generator, which comprises a power supply and a central control unit, and also comprises a high frequency inverter circuit, a pulse-width modulation drive circuit and a high voltage commutation circuit. The generator converts the industrial power supply into two way high frequency high voltage, and then obtains positive end DC high voltage and negative end DC high voltage after the rectification and the filter to supply an X-ray pipet for working. Because the frequency is high and the high voltage ripple after the rectification and the filter is minimum, causing the X-ray pipet of a radiographic table and the X-ray pipet of an electric perspective table to work in turn under the condition of arranging only one set of high voltage supply. The equipment investment is saved, and the work of using the X-ray diagnosis for the medical staff is convenient. Being served as the high voltage supply, the invention is also suitable for the safety detection fields such as the industrial fault detection, the civil aviation, the station, the custom, etc., and supplies the stable high quality high voltage for the equipment.

Description

technical field [0001] The invention relates to a medical diagnostic X-ray machine, especially a high-frequency and high-voltage generator of the X-ray machine. Background technique [0002] After Rontgen discovered X-rays on November 8, 1895, X-rays have been used for medical diagnosis for more than 100 years. It is 5 hertz (Hz), open loop control. Due to the low operating frequency, the DC high voltage ripple after rectification and filtering is still relatively large, so that the quality of X-rays is not high, such as: poor monochromaticity, more soft rays, etc. Due to the use of open-loop control, the DC high voltage and current are not very stable, the control of exposure parameters and the stability of repeatability are poor. Due to the low degree of automation of operation and low level of protection, there are many factors affecting imaging, which ultimately leads to poor imaging quality. High, the diagnostic level is greatly limited, and the equipment structure is...

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Problems solved by technology

Although intermediate frequency and high frequency X-ray machines are listed as the key research topics of the national "Seventh Five-Year Plan", "Eighth Five-Year Plan" and "Ninth Five-Year Plan", some domestic units with strong economic strength and technical strength have carried out this project research, but there are no reports of successful research and development and production

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