Three-phase high-speed rotation positive electrode driver

Abstract

The invention discloses a three-phase high-speed rotation positive electrode driver. The three-phase high-speed rotation positive electrode driver mainly comprises an MCU-SPWM driving circuit module,a SPM intelligent driving circuit module, an ADC detection circuit module, an independent driving power supply module and a driving signal control circuit module, wherein the driving signal control circuit module, the MCU-SPWM driving circuit module and the SPM intelligent driving circuit module are sequentially connected, the SPM intelligent driving circuit module is further connected with the ADC detection circuit module and the independent driving power supply module, and the ADC detection module is further connected with the MCU-SPWM driving circuit. A SPWM pulse waveform at 50-180Hz generated by a singlechip microcomputer (MCU) is mainly used, a post-stage FSBS15CH60 intelligent driving circuit module is controlled to generate an alternating current so as to drive the motor to rotateby driving and amplification, the rotation speed of a target surface can be effectively increased, the imaging effect is improved, the target surface is prevented from being easily damaged by an electronic beam, and the service lifetime of equipment is prolonged.

Description

technical field [0001] The invention relates to a high-speed rotating anode driver for a medical high-frequency X-ray machine, belonging to the technical field of X-ray machine equipment. Background technique [0002] With the continuous development of medical technology in the world, the diagnosis and treatment methods used in medical diagnosis are also changing with each passing day, and the technology is constantly being updated. Similarly, the imaging equipment used in the radio frequency imaging X-ray diagnostic system has also undergone revolutionary changes. The high voltage generator The working frequency has changed from the initial 50Hz power frequency to today's 400KHz or even higher frequency, which makes the X-ray imaging quality clearer and more stable, the patient receives a lower X-ray radiation dose, the space occupied by the machine and equipment is greatly reduced, and the equipment is more controllable. Among them, in the X-ray diagnosis and treatment equ...

AI Technical Summary

Problems solved by technology

[0003] In the past tubes, the anode target surface of the tube can only reach 3600 rpm under the drive of the power frequency motor; It ranges from AC160V to 220V, and the working frequency is 50 / 60Hz, so that the motor speed is limited to 3000-3600 rpm; because the anode target surface rotates too slowly, it is easy to produce the following adverse effects:

[0004] 1. It is easy to cause the target surface to be heated unevenly under the bombardment of electrons, causing cracks and damage to the target surface, resulting in irregular scattering of rays, which affects the imaging effect of X-ray images

[0005] 2. A certain area of ​​the target surface is bombarded by the electron beam for a long time and the metal surface is melted by the high temperature generated. Under the action of the rotating centrifugal force, the melted high-temperature metal liquid is splashed onto the glass wall of the ball tube, which directly leads to the damage of the whole ball tube. scrapped

The first method cannot be further improved because the structure of the tube is fixed and the space for modification is limited.

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