Intelligent Voltage Converter for X-ray Battery Current Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
X-ray apparatuses experience high peak and root-mean-square current values from power batteries, leading to reduced battery life and the need for larger batteries, which existing passive capacitor bank solutions do not optimally address.
Innovation Solution
An intelligent voltage-voltage converter is placed between the power battery and capacitor bank, regulating the current and output voltage using an embedded algorithm to reduce mean current values, with the capacitor bank acting as an energy buffer by adjusting capacitance during pulse and non-pulse periods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a capacitor bank is parallel-connected to the power battery to reduce current peaks, then the power battery current shocks are reduced, but the device complexity increases and the solution remains suboptimal
Solution Approach 1:
The patent introduces a voltage-voltage converter as an intermediary device between the power battery and capacitor bank. This converter actively manages the interaction between battery and capacitor, optimizing current distribution and reducing peak currents more effectively than passive parallel connection alone
Solution Approach 2:
The patent dynamically adjusts the duty cycle parameter of the voltage-voltage converter to optimize current delivery. By changing operational parameters (duty cycle) based on real-time conditions, the system reduces peak currents while maintaining functionality, resolving the contradiction between reliability and complexity
2Power
If a larger power battery is used to handle high current values, then the current delivery capability is improved, but the weight and volume increase
Solution Approach 1:
The capacitor bank is pre-charged during non-pulse periods to store energy in advance. When high-power pulses are needed, the capacitor bank supplements the power battery, allowing the battery to be smaller since it doesn't need to handle peak currents alone
Solution Approach 2:
The voltage-voltage converter acts as an intelligent intermediary that coordinates between the power battery and capacitor bank, optimizing power distribution and enabling the use of a smaller power battery while maintaining high current delivery capability when needed
3Power
If the duty cycle is increased to reduce mean current values, then the power battery current is reduced, but the output voltage may be insufficient
Solution Approach 1:
The control logic circuit continuously monitors output voltage and adjusts the duty cycle accordingly. This feedback mechanism ensures that the duty cycle is optimized to reduce mean current while maintaining sufficient output voltage, resolving the contradiction between power reduction and voltage maintenance
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution effectively reduces energy heat in power batteries, increasing their lifespan and allowing the use of smaller batteries, while maintaining the functionality of X-ray apparatuses without modifying existing electrical circuits.
Implementation Method 1
a capacitor bank parallel-connected with the power battery
Implementation Method 2
a voltage-voltage converter connected between the power battery and the capacitor bank
Data Source
AI summary
An X-ray apparatus includes a converter into which there is integrated a control logic circuit configured to regulate the supply voltage of a high-voltage power supply source of the X-ray apparatus. To this end, the intelligent voltage-voltage, converter is placed between the power battery and the capacitor bank. This intelligent converter is capable of determining the optimum voltage to be delivered to the generator for the radiology examination to be undertaken in regulating the current of the power battery at the necessary level of current.