PoE Power Aggregation Circuit for High-Power Ethernet Devices
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Solution Overview
Problem
Conventional Power over Ethernet (PoE) switch devices are unable to provide sufficient power to advanced PoE+ or UPoE devices, necessitating the purchase of new equipment, which increases costs and hinders the adoption of these devices in networks.
Innovation Solution
A PoE power aggregation device that includes a chassis with multiple powering device connectors and a power transmission subsystem to aggregate power from multiple ports, allowing conventional PoE devices to power PoE+ or UPoE devices by combining power through integrated circuits, DC-to-DC converters, and other components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If conventional PoE switch devices are used, then device compatibility and simplicity are maintained, but insufficient power is provided to PoE+ or UPoE devices
Solution Approach 1:
The patent combines power from multiple PoE ports (e.g., two ports providing 15.4W each) to aggregate sufficient power for PoE+ or UPoE devices requiring higher power levels, thereby resolving the contradiction between maintaining conventional device simplicity and providing adequate power output
Solution Approach 2:
The power aggregation device enables a single conventional PoE switch to serve multiple functions: it can power both traditional PoE devices and high-power PoE+ or UPoE devices by aggregating power from multiple ports, thus achieving multi-functionality without requiring separate switching infrastructure
2Power
If new PoE+ or UPoE switch devices are purchased to meet higher power requirements, then sufficient power is provided, but implementation costs increase
Solution Approach 1:
The patent merges power from multiple existing PoE ports to create sufficient power capacity, eliminating the need to purchase additional PoE+ or UPoE switch devices and thereby reducing equipment quantity and implementation costs
3Adaptability or versatility
If conventional PoE standards are used, then device simplicity and lower costs are maintained, but adoption of advanced PoE+ or UPoE devices is hindered
Solution Approach 1:
The power aggregation device creates a universal interface that accommodates both conventional PoE devices and advanced PoE+ or UPoE devices, allowing a single conventional switch to support multiple device types and power requirements through power aggregation from multiple ports
Data Source
AI summary
A PoE power aggregation system includes a PoE power aggregation device coupling a powering device to a powered device. The PoE power aggregation device includes first and second powering device connectors coupled to first and second powering device ports on the powering device, respectively, and a powered device connector coupled to a powered device port on the powered device. The PoE power aggregation device receives data from the powering device via the first powering device connector, and transmits the data to the powered device through the powered device connector. The PoE power aggregation device also receives first and second power from the powering device via the first powering device connector and the second powering device connector, respectively, and transmits the first and second power to the powered device through the powered device connector along with the data.