Power Routing Circuit for Automatic Redundant Supply Failover
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Solution Overview
Problem
Existing power supply systems with redundancy face issues of unnecessary damage to redundant power supplies when one power supply fails, and they require complex monitoring systems or physical intervention for fault recovery.
Innovation Solution
A power routing circuit with main and auxiliary switching circuits that dynamically connect and disconnect input nodes to an output based on voltage comparisons, using electronic switches and comparators to manage power distribution and protect against faults without physical intervention or complex monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If individual fuses and higher-level monitoring systems are used to manage power supply redundancy, then power supply failure can be detected and isolated, but the system complexity increases and physical intervention is required for fault recovery
Solution Approach 1:
The power routing circuit automatically detects power supply failures and switches to redundant power supplies without requiring external monitoring systems or physical intervention. The circuit self-manages the failover process through voltage comparison and automatic switching, eliminating the need for complex external monitoring infrastructure.
Solution Approach 2:
The patent introduces an intermediary power routing circuit that sits between the power supplies and the load, automatically managing power distribution and failover. This intermediary handles the complexity of redundancy management internally, simplifying the overall system architecture while maintaining high reliability.
2Reliability
If redundant power supply is connected directly to faulty load, then power continuity is maintained, but the redundant power supply may become damaged or fail
Solution Approach 1:
The power routing circuit performs preliminary voltage comparisons before connecting the redundant power supply to the load. By checking voltage levels in advance and only connecting when safe, the circuit prevents harmful current flow that could damage the redundant power supply while maintaining power continuity to the load.
Solution Approach 2:
The circuit applies preliminary anti-action by preventing the connection of redundant power supplies to faulty loads through voltage comparison. This preemptive measure blocks harmful current flow before it can reach the redundant power supply, protecting it from damage while maintaining system reliability.
3Device complexity
If manual intervention is required for fault recovery in power supply systems, then simple circuitry is used, but system downtime increases and productivity decreases
Solution Approach 1:
The power routing circuit automatically performs fault detection, isolation, and recovery without requiring manual intervention. The circuit self-manages the entire fault recovery process through automatic switching based on voltage comparisons, eliminating system downtime while keeping the circuit design relatively simple.
Solution Approach 2:
The patent implements dynamic switching capability that automatically adapts to fault conditions and recovers system operation. The circuit transitions from static manual recovery to dynamic automatic recovery, improving productivity while maintaining circuit simplicity through clever use of voltage comparison and switching elements.
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 solution provides seamless power redundancy by protecting components from damage, simplifying system architecture, and reducing the need for physical intervention and complex monitoring systems.
Implementation Method 1
configured to conductively connect the first input node VIN1 to the output node VOUT1 if a voltage at the first input node VIN1 is higher than a voltage at the output node VOUT1
Data Source
AI summary
A power routing circuit having first and second input nodes VIN1, VIN2 for connection to first and second power supplies and output node VOUT1 for load connection; and includes a first main switching circuit connected between the first input node VIN1 and output node VOUT1 and conductively connects the first input node VIN1 to the output node VOUT1 if a voltage at the first input node VIN1 is higher than a voltage at the output node VOUT1, and a first auxiliary switching circuit connected between the second input node VIN2 and output node VOUT1 and conductively connects the second input node VIN2 to output node VOUT1 if a voltage at the second input node VIN2 is higher than the voltage at the output node VOUT1 and the voltage at the first input node VIN1 is at least a threshold amount lower than the voltage at the second input node VIN2.