DC Bus Power Supply for Stable Multi-Voltage Medical Imaging
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Solution Overview
Problem
Traditional power supply systems for medical imaging devices face challenges in adapting to different voltage levels and frequencies across regions, leading to inefficiencies, waste, and voltage fluctuations due to lack of effective feedback regulation, causing adverse effects on device performance.
Innovation Solution
A power supply system comprising a rectifying circuit module, DC connecting bus module, and voltage output circuit module, with features like three-phase power factor correction and DC/DC HF isolation transformer, enabling stable conversion of AC and DC voltages without input fluctuations, reducing the need for multiple-tap structures and saving costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional power transformers with many input taps are used to match different voltage levels and frequencies, then the power supply system can adapt to different geographical regions, but the system design becomes complicated and causes unnecessary waste
Solution Approach 1:
The patent employs a universal power supply system that can handle multiple voltage levels (220V, 380V, 400V, 480V) and frequencies (50Hz, 60Hz) through a single standardized transformer design with fixed taps. This eliminates the need for region-specific transformers while maintaining full adaptability across different geographical standards.
Solution Approach 2:
The system achieves adaptability to different voltage and frequency parameters through electronic control and switching mechanisms rather than physical transformer reconfiguration. The controller dynamically adjusts operating parameters based on input conditions, allowing the same hardware to operate across multiple voltage/frequency combinations without structural changes.
2Reliability
If traditional power transformers without effective feedback regulation are used, then the system structure is simple, but the output voltage fluctuates with input voltage changes causing adverse effects on medical imaging devices
Solution Approach 1:
The patent implements a comprehensive feedback regulation system that continuously monitors input voltage, output voltage, and current parameters. The controller receives feedback signals from sensors and dynamically adjusts the power conversion process to maintain stable output voltage regardless of input fluctuations, ensuring reliable operation of medical imaging devices.
Solution Approach 2:
The system replaces traditional mechanical voltage regulation methods with electronic control mechanisms. Instead of using mechanical tap changers or voltage regulators, the patent employs electronic switching devices and digital control algorithms to achieve precise voltage stabilization, reducing mechanical complexity while improving reliability.
3Adaptability or versatility
If multiple-tap structures are used in traditional power supply systems to handle different voltages, then voltage adaptability is improved, but the system size and weight increase
Solution Approach 1:
The patent designs a universal power supply system that consolidates multiple voltage handling capabilities into a single transformer unit. By using a standardized transformer with optimized winding configurations and electronic switching, the system achieves multi-voltage adaptability without requiring multiple separate transformers or heavy multi-tap structures.
Solution Approach 2:
The system replaces heavy mechanical multi-tap transformer structures with lighter electronic voltage conversion mechanisms. Instead of using large transformers with numerous physical taps and switching mechanisms, the patent employs solid-state power converters and digital control systems that achieve the same voltage adaptability with significantly reduced weight and size.
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
The system ensures stable and regulated AC and DC voltage outputs, reduces system size and weight, and provides effective protection against grounding failures, improving power quality and reducing costs by eliminating the need for complex mechanical protection circuits.
Implementation Method 1
the rectifying circuit module is connected with an external power supply to correct and rectify the AC current of the external power supply to form a DC current
Implementation Method 2
the DC connecting bus module is connected with the rectifying circuit module to store the DC current and output a DC voltage
Data Source
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AI summary
The application discloses a power supply system and an electronic device. The power supply system comprises a rectifying circuit module, a DC connecting bus module and a voltage output circuit module. The rectifying circuit module is connected with an external power supply to correct and rectify the AC current of the external power supply to form a DC current; the DC connecting bus module is connected with the rectifying circuit module to store the DC current and output a DC voltage; the voltage output circuit module is connected with the DC connecting bus module to convert the DC voltage of the DC connecting bus module to at least any of a three-phase AC voltage, a single-phase AC voltage and a target DC voltage and output it. The power supply system in the application takes the DC connecting bus module as a transfer module to ensure stability and regulation of AC voltage and/or DC voltage outputted by the voltage output circuit module without the influence of fluctuation on the AC side of the rectifying circuit module.