Programmable Switches for Redundant Power Feed Balancing
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Solution Overview
Problem
Conventional redundant power architectures for telecommunications devices cannot control or select which power feeds to use, leading to oscillations and voltage disturbances due to load imbalances and power spikes, potentially causing current transients and voltage disturbances.
Innovation Solution
The implementation of a power supply system with programmable switches and current-control components that allow for selective and controlled provisioning of power across redundant power feeds, preventing current flow back to power plants and enabling graceful switchovers between feeds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional redundant power architectures automatically draw power from the power feed with the highest input voltage, then power supply is ensured, but the active power feed oscillates from one power plant to another causing current transients and voltage disturbances
Solution Approach 1:
The patent implements a dynamic power feed selection mechanism that monitors voltage levels from multiple power plants and automatically switches between them based on real-time conditions. The system uses voltage comparators and control logic to dynamically determine which power feed to activate, ensuring continuous power supply while preventing oscillation through hysteresis control and debouncing mechanisms that stabilize the switching decision.
Solution Approach 2:
The system incorporates feedback control by continuously monitoring the input voltage levels from all power feeds and using this information to control the switching elements. The control logic receives feedback about voltage conditions and adjusts the power feed selection accordingly, preventing oscillation by maintaining a stable selected state until a significant voltage change warrants a switch.
2Power
If multiple power feeds are used to increase power consumption capacity, then power availability is improved, but control over which power feeds are used cannot be achieved
Solution Approach 1:
The patent segments the power feed selection control into individual controllable units, with each power feed having its own control logic and switching element. This segmentation allows the system to independently evaluate and control each power feed based on its voltage level and availability, providing both high power capacity through multiple feeds and precise control over which feeds are actively used.
3Reliability
If redundant power feeds from different power plants are incorporated, then uninterrupted Internet connectivity is achieved, but automatic selection based on highest voltage causes oscillations and voltage disturbances
Solution Approach 1:
The patent implements beforehand cushioning by incorporating voltage threshold hysteresis and debounce timing mechanisms in the power feed selection logic. These mechanisms cushion against rapid voltage fluctuations by requiring a sustained voltage level change before triggering a switch, thereby preventing oscillation-induced current transients and voltage disturbances while maintaining uninterrupted power supply.
Data Source
AI summary
A disclosed apparatus may include (1) a first plurality of power feeds that are electrically ORed to form an channel input, wherein the channel input is electrically coupled to a first channel of a power supply, (2) a first plurality of switches electrically coupled inline on the first plurality of power feeds, wherein the first plurality of switches are individually programmable to open or close electrical continuity, (3) a second plurality of power feeds that are electrically ORed to form an additional channel input, wherein the additional channel input is electrically coupled to a second channel of the power supply, and (4) a second plurality of switches electrically coupled inline on the second plurality of power feeds, wherein the second plurality of switches are individually programmable to open or close electrical continuity. Various other apparatuses, systems, and methods are also disclosed.