A kind of power distribution method and system for CT machine

Abstract

The invention provides a power distribution method and system for a CT machine, the main power supply line of the CT machine, the power supply line of the rotor, the power supply line of the stator, and the power supply lines of several other subcomponents There are power supply sampling circuits on the upper part to realize real-time monitoring of each power supply line. The main power switch is closed, and after the voltage of the main power line does not exceed the first preset voltage range, the power line of the rotor, the power line of the stator, and the power lines of the other sub-components are turned on in sequence to ensure that the When the voltage of the main power supply circuit is stable, the circuits of the rotor, the stator and other sub-components are turned on in sequence, so that the power-on sequence of each component can be controlled, and the huge voltage and current of the main power supply of the CT machine can be avoided. The surge impact on the circuits of the rotor, the stator and other sub-components also avoids the impact on the power system of the hospital where the CT machine is located.

Description

technical field [0001] The invention relates to the field of power supply control of computer tomography scanning equipment, in particular to a power distribution method and system for CT machines. Background technique [0002] As a large-scale medical electronic and electrical equipment, CT has a complex structure, high power, and many functional modules. There is mutual crosstalk between various components, and strong currents are closely related to weak parts. In order to make CT equipment work reliably, it is necessary to reduce the interference to other components among the electronic components, but also to improve their own anti-interference ability. [0003] The circuit boards of the CT stator part mainly include motion control boards, scanning control boards, audio communication boards, etc. The power supply of these circuit boards is provided by the electrical cabinet of the power supply with 220V AC power, and then through various switching power supplies to gener...

AI Technical Summary

Problems solved by technology

The instantaneous power of CT power-on is as high as 100kVA. As long as the main switch of CT is closed, all circuit boards and components are also powered at the same time. At this time, the instantaneous voltage and current of the entire power supply system will be the largest. Almost all CT circuit boards and lines The interface will be subject to strong impact, which will damage the interface or circuit board or reduce its life, which is very unfavorable to the power supply system and CT system

The process of closing the air switch inside the CT will also generate a large surge, which will also cause damage to other components and circuit boards

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