Universal Rectifier for Dual Voltage Power Systems
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Solution Overview
Problem
Conventional power systems for telecommunication devices require dual power systems to supply both +24 VDC and -48 VDC, leading to increased costs, inefficiency, and the need for full system replacement if voltage prediction is incorrect, as they often necessitate secondary conversions and duplicate components.
Innovation Solution
A dual voltage power system (DVPS) utilizing universal rectifiers and a power shelf with switchable configurations to selectively route AC or DC signals, allowing for the generation and distribution of both +24 VDC and -48 VDC from a single system, enabling efficient conversion and balancing of electrical loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If dual power systems are used to supply both +24 VDC and -48 VDC, then both voltage standards can be provided, but system complexity and cost increase due to duplicate components
Solution Approach 1:
The patent implements a universal rectifier that can operate in multiple modes to provide both +24VDC and -48VDC outputs. The rectifier includes switching circuitry that can configure the same power conversion stage to deliver either voltage standard, eliminating the need for separate dedicated rectifiers for each voltage standard and reducing overall system complexity
Solution Approach 2:
The patent combines the functionality of multiple power supply systems into a single integrated rectifier unit. By merging the AC-to-DC conversion stage with selectable output configuration, the system consolidates what would traditionally require separate power systems into one unified device, reducing component duplication
2Adaptability or versatility
If conventional power systems require secondary converters for the second voltage, then both voltages can be supplied, but overall system efficiency decreases
Solution Approach 1:
The patent extracts the secondary conversion stage from the power supply architecture. Instead of using AC-to-DC rectifiers followed by DC-to-DC converters, the invention directly generates the required DC voltages from the AC input through a single conversion stage with selectable output, eliminating the intermediate conversion step and associated energy losses
Solution Approach 2:
The patent changes the operating parameters of the rectifier to directly output different DC voltages. By adjusting switching configurations and reference voltages within the same power conversion stage, the system can deliver either +24VDC or -48VDC without changing the fundamental conversion process, maintaining high efficiency across both voltage standards
3Device complexity
If users must plan ahead regarding rectifier base voltage, then system configuration is simplified, but adaptability decreases and full system replacement is required if prediction is incorrect
Solution Approach 1:
The patent implements a dynamic rectifier system where the output voltage standard can be changed during operation or at installation time. The rectifier includes control circuitry that allows switching between different output configurations (+24VDC or -48VDC) without requiring physical reconfiguration or system replacement, providing flexibility while maintaining simple operation
Solution Approach 2:
The universal rectifier design allows the same hardware platform to serve multiple voltage standards. Users can select the appropriate output voltage based on their needs at the time of deployment, and if needs change, the system can be reconfigured without replacement, combining configuration simplicity with long-term adaptability
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 DVPS provides efficient and cost-effective generation of both +24 VDC and -48 VDC voltages from a single system, reducing the need for duplicate components and enabling seamless switching between voltage modes, thus improving efficiency and reducing operational costs.
Implementation Method 1
a first rectifier, wherein an output of the first rectifier is coupled to a first terminal, a second rectifier, wherein an output of the second rectifier is coupled to a second terminal
Implementation Method 2
an inverter configured to operate in the event that the first electronic switch does not receive the AC signal to receive a direct current (DC) signal, and convert the DC signal to a second AC signal
Data Source
AI summary
An apparatus comprising a first rectifier, wherein an output of the first rectifier is coupled to a first terminal, a second rectifier, wherein an output of the second rectifier is coupled to a second terminal, a first electronic switch configured to selectively route an alternating current (AC) signal to the first rectifier or the second rectifier, an inverter configured to operate in the event that the first electronic switch does not receive the AC signal to receive a direct current (DC) signal, and convert the DC signal to a second AC signal, a second electronic switch configured to selectively route the DC signal from the first terminal or the second terminal to the inverter, and a third electronic switch configured to selectively route the second AC signal to the first rectifier or the second rectifier.